CN108488403B

CN108488403B - Core pipe valve

Info

Publication number: CN108488403B
Application number: CN201810267863.3A
Authority: CN
Inventors: 卢星霖
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-03-29
Filing date: 2018-03-29
Publication date: 2019-07-05
Anticipated expiration: 2038-03-29
Also published as: CN108488403A

Abstract

Core pipe valve of the invention belongs to valve field, is original brand new valve kind, is related to opening and closing, pressure opening and closing, adjusting, safety, pressure release, non-return, decompression, emergency cut-off etc.；Valve core tube is the coaxial sleeve II through the sleeve I of valve body, body cavity and valve body of fixing piece；There is axial interlayer in the middle part of valve core tube, the axially adjacent both sides of interlayer are at least one radial recirculation hole of pipeline section I and pipeline section II respectively；Ring-shaped valve seats around at least one sleeve throat of the annular spool and sleeve I and sleeve II of interlayer constitutes sealing pair；Difference >=0 of the outer diameter of pipeline section I and pipeline section II, pipeline section I and sleeve I and pipeline section II and sleeve II are that shaft hole mode cooperates the setting of its at least one engaging portion to seal；Under the action of both direction potential energy, valve body is relative to the mobile realization opening and closing of valve core tube axial reciprocating, power and energy.Structure is simple, and convenient for manufacture, opening and closing resistance is small, and safety, reliability, sensitivity are good, improve efficiency, and adapt to various operating conditions.

Description

Core pipe valve

Technical field

Core pipe valve of the invention belongs to valve field, core pipe valve be after plug valve, shut-off valve, gate valve, butterfly valve, ball valve and every Original brand new after film valve and the valve kind with powerful common technology feature, by the valve huge as one Series is made known publicly, and the common technology feature of core pipe valve crosses at least two-way valve mechanism design from " realm of necessity " " realm of freedom ".

The big characteristic of the six of core pipe valve is that existing plug valve, shut-off valve, gate valve, butterfly valve, ball valve and six major class valve of diaphragm valve are owed Lack or no: one, no matter pressure medium or environmental pressure have it is much, with light fast opening and closing characteristic；Two, it may be implemented Two-way opening and closing characteristic；Three, external seal, the zero leakage characteristic that can really realize, it can accomplish asking there is no external seal Topic；Four, interior sealing, annular spool and ring-shaped valve seats are sleeve structure, and of short duration sealing moving process is three steps: 1, cutting is situated between Matter, 2, closing, 3, be closely affixed；Five, a variety of series, the scalability characteristic on the basis of every kind of series；Six, a core pipe valve is multi-purpose Way characteristic.

The core pipe valve series of synchronous application, is tentatively divided into two macroplates and three branches, two macroplates are: one, conventional core Pipe valve plate, two, dual-valve body core pipe valve plate block；Three branches are: one, terminal core pipe valve series, two, twin-core Multifunctional core arranged side by side Pipe valve series, three, threeway core pipe valve series.

This case is as purport application, mainly containing a part for covering conventional core pipe valve series；Each plate contains subsystem Column, also, each subfamily is related to artificially controlling driving core pipe valve and from power drive core pipe valve；When on pipeline simultaneously need to open and close When valve, automatic regulating valve, balanced valve, pressure reducing valve, quick action emergency valve, check-valves, using asymmetrical core pipe valve, ripple pipe pressure The automatic flexible characteristic for the core pipe valve property of can choose that core pipe valve, the blind pipe of cabin driving drive；In conventional pressure medium, place In full open state；When being higher than normal pressures, automatic adjustment equilibrium state is transformed by conventional circulation status；Continue to be pressurized When be in automatic pressure-reducing state；When pressure medium superelevation, emergency cut-off state；It is lower than normal pressures or upstream in pressure medium When pressure loses pressure source, it is also equipped with the function of check-valves；So, it relies on oneself in the case where not needing actuator and completes these function Can, huge valve purchase commodity and actuator purchase commodity are not only saved, a large amount of maintenance cost and maintenance work can also be saved Amount, meanwhile, pipe network flow resistance is reduced, failure rate is reduced.

Core pipe valve is convenient for intelligence manufacture, meanwhile, core pipe valve is conducive to intelligence manufacture；Conventional core pipe valve plate block from power drive Core pipe valve series and the entire series of dual-valve body core pipe valve plate block will solve the knotty problem of many application fields；Each valve The it is proposed of problem, on the basis of independent claims, so that it may take out practicable structure technology scheme；For harsh work The problem of condition, sanitation-grade operating condition and high-end valve, for preventing to leak, for reducing purchasing for expensive actuator, for preventing Various disasters have valve multiple use etc. important and far-reaching space flight and aviation and deep-sea oil gas application Meaning.

Its original key structural feature: have is around the annular spool of interlayer and the valve core tube of radial recirculation hole Fixing piece, at least one end is connected to pressure vessel, press device, medium pipe network for it, and the valve body with ring-shaped valve seats is movement parts, Valve body package valve core tube and relative to valve core tube make axial reciprocating it is mobile realize control opening and closing, pressure rely on oneself opening and closing, control and regulation, Rely on oneself adjusting, safety, non-return, exhaust, hydrophobic, decompression, balance, pressure limiting, atomization, pulse, buoyancy, transmission, overflow, it is filling, every The functions such as automatically cut off from, dust explosion protection, emergency cut-off and two-way booster.

Effective application of structural principle: when the input section of valve core tube is equal with deferent segment outer diameter, the axial direction of body cavity Face area is equal, and there is no the pressure differences of axial end face, in this way, no matter how huge pressure medium, the two of body cavity A axial end face area equation will not constitute the resistance of opening and closing without pressure difference, and opening and closing will be easily quick；When input section with When deferent segment outer diameter is unequal, two axial end face areas of body cavity are also unequal, and there are the pressure difference of axial end face, pressures Power difference forms the motive force to valve body, in this way, just utilizing this pressure difference, realization is various to reach various functions from power drive valve With the variation of function.

In next step, the extending space of core pipe valve is further inquired into, such as: spray core pipe valve, Multifunctional floating core pipe valve, rotation Turn opening and closing core pipe valve, multiple flow passages core pipe valve, hydraulic core pipe valve island, air pressure core pipe valve island, multichannel core pipe valve and Multi-path synchronous core Pipe valve, dual-valve body bridge cut-off core pipe valve and flexible imitative human organ core pipe valve etc..

In next step, according to the existing structure scheme of core pipe valve, there are also the submissions of a large amount of subdivision application documents；As purport Application, the independent claims of this case will contain the conventional core pipe valve plate block of lid and dual-valve body core pipe valve plate block, and this case has general character special The appended claims of sign will also contain the patent of the conventional core pipe valve plate block of lid and dual-valve body core pipe valve plate block, this case and synchronous application Application documents can be complementary to one another confirmation protection, avoid the cumbersome and too many repetition of file, meanwhile, it is applied in specification embodiment Embodiment summary, keeps the file concise.

The implementation of core pipe valve will cause the new production technology revolution of valve industry, at least a part of metal valve core pipe this One piece of pipe fitting that can produce various specifications by iron company, valve enterprise cut again, drill, surface processing, in interlayer indentation Core, installation annular spool etc., reduce the investment of valve enterprise, reduce the waste of the energy, reduce pollution, improve production efficiency.

Background technique

One, current various opening and closing valve statuses:

A, plug valve

The opening and closing of plug valve are troublesome in poeration, and opening and closing torque is larger, and switch is laborious, and building block is more, service life Short, sealing is prone to wear, and when high temperature is easy to block, and is unsuitable for adjusting flow.

B, shut-off valve

The flow resistance of shut-off valve is big, and failure rate is higher, and opening and closing torque is big, and shut-off valve is only permitted medium one-way flow, and when installation has Directionality；When longtime running, sealing reliability is not strong；Since medium is changed by the flow direction of valve, cut Only the minimum flow resistance of valve is also higher than most of other kinds of valves；Since stroke is longer, opening speed is slow compared with ball valve.

C, gate valve

The opening and closing time of gate valve is longer, and gate valve can only make standard-sized sheet and Quan Guan, cannot make adjustments and throttle, between sealing surface easily Cause erosion and scratch, repair relatively difficult, outer dimension is larger, opens and needs certain space, and structure is more complex, for a long time with Come the general gate valve that uses in the market in the prevalence of leak or phenomenon of getting rusty.

D, butterfly valve

The flow adjustment range of butterfly valve is little, and when opening up to 30%, flow just reaches nearly 95% or more；Due to butterfly valve The limitation of structure and sealing material, should not be used in high temperature, high pressure pipe-line system in, general work temperature at 300 DEG C hereinafter, Pn40 is hereinafter, sealing performance is poor relative to ball valve, shut-off valve, therefore is not very high place for seal request.

E, ball valve

The sphere and valve rod of ball valve are not one, are easy to fall off, and the spool and valve seat of ball valve are frictional contacts, especially The frictional resistance of sealing pair is big in the case of heavy caliber and high pressure, and opening and closing torque is larger；Because of the most important valve base sealing of ball valve Loop material is polytetrafluoroethylene (PTFE), and it is inert, the physical characteristic of polytetrafluoroethylene (PTFE) that it, which has almost all of chemical substance, packet The higher coefficient of expansion is included, sensibility and undesirable heat conductivity to cold flow, it is desirable that the design of valve base sealing has to be around this A little characteristics carry out, so, when sealing material is hardened, the reliability of sealing is just destroyed, moreover, the heatproof of polytetrafluoroethylene (PTFE) Grade is lower, can only use less than 180 DEG C, be more than this temperature, sealing material will aging, and consider be used for a long time In the case where, it is general only to be used at 120 DEG C；Its regulation performance is less better relative to shut-off valve, especially pneumatic operated valve (or motor-driven valve).

F, diaphragm valve

Diaphragm valve: referring to and be provided with a flexible film or composite membrane in valve body and valve deck, and closure member is connected with diaphragm A kind of compression set connect；Valve seat can be also possible to the tube wall of straight-through runner with weir shape.

Disadvantage: 1. due to by valve body Lining Technology and diaphragm manufacturing process and limitation, biggish valve body lining and biggish Diaphragm manufacturing process is all difficult, therefore diaphragm should not be used in biggish caliber, is typically employed on DN≤200mm pipeline below； 2. due to being limited by diaphragm material, the diaphragm valve occasion not high suitable for low pressure and temperature；It is usually no more than 180 DEG C；3. adjusting It is relatively poor to save performance, only adjusts in a small range and (generally in closing to 2/3 aperture, can be used for flow adjusting).

Two, the status of current various automatic valves:

1, safety valve

Currently, acting on the safety valve in boiler, pressure vessel and other compression equipment with the direct load formula of compressed spring Based on safety valve and pilot operated safety valve；Its Reliability of Microprocessor and performance quality are directly related to the safety of equipment and the person, and It is closely related with energy conservation and environmental protection.

Compressed spring Direct loaded safety valve disadvantage: load lotus can change with unlatching, i.e., compression spring force is being opened It is that gradient is increased during opening, causes to discharge unsmooth, Lift, drain time, speed can not Field adjustment；It was using The fatigue variation of compression of metals spring is big in journey and keeps pressure limiting parameter fluctuation big, and often to adjust can guarantee the normal use, no It then will appear drain charge in advance, or extend drain charge.

Pilot operated safety valve, the disadvantage is that: the seal rubber temperature tolerance of O-shaped rubber ring is poor；Structure is complicated, manufacturing cost It is high；Reliability is influenced by main valve, auxiliary valve, power drive mechanism many factors；The poor sensitivity under the operating condition of low pressure and mass flow.

2, check-valves

Currently, the rubber valve check-valves, butterfly shaped check valve, Wafer Check Valves, the slideway rolling ball type check valve, liter that use Check-valves etc. drops, and flow passage resistance force of waterproof is substantially all bigger, and sealing effect is not good enough, and the failure rate of Wafer Check Valves is higher, lifting The noise of check-valves is larger.

Butterfly Type Non-slam Check its stretch out axis connect with plug-in buffer unit, also, buffer unit inner cavity also with control Medium perforation processed, in this way, all bringing negative factor to cost, sealing and reliability.

Be now widely used for electric power, metallurgy, petroleum, chemical industry, coal gas, urban construction, papermaking, weaving, medicine, food, ship to The antifouling separative valves of the industries such as draining, the energy, probing are mainly made of valve body, valve deck, flap, gasket, compressed spring etc., It is generally made of concatenated two symmetrical check-valves, flow resistance is big, and at high cost, reliability value must be queried.

For compressed spring in check-valves due to fatigue, burn into bonding etc., the opening and closing that may cause flap can not It leans on, and causes failure or accident.The considerable safety thing that the leakage of the acetylene as caused by check-valves failure that the U.S. occurs causes Therefore significant.

3, automatic regulating valve

Currently, being applied to the automatic regulating valve of various medium pipe networks, additional actuator, auxiliary facility and electric power are needed；It is special It is not domestic blast furnace cooling is a critical issue always, the thermic load of the type of cooling of constant flux water supply and big ups and downs not phase Adapt to, thermic load peak value it is high when water wretched insufficiency, then cause burning for cooling-part, a large amount of cooling waters then wasted when low, If using the automatic cooling system of developed country, since huge structure is at high cost, and system complex is difficult in maintenance, operation fiber crops Tired, application prospect allows of no optimist, and takes a broad view of some improved technique schemes, and occur with system form, can think price and structure It is less than optimal.

Hydraulic auto adjusting valve, such as single-seat adjusting valve, sleeve adjusting valve all must pneumatically or electrically executing agency in addition, It is just able to achieve the adjusting requirement of setting, it is even more impossible to safety under the conditions of high pressure and is worked normally.

A kind of high-differential-pressure regulating valve, structure include valve body, valve seat, valve rod, valve deck, throttling element, executive device, sealing element and Installation part, throttle part are packed in valve rod lower end, and are formed with and the mutually matched sealing surface of sealing surface of seat, mainly throttling element It is composed in series by multi-level cone shape plunger, constitutes multi-stage flow-throttling device, have adjustable range big, exported pressure medium and flow is steady The advantages that determining, the regulating device suitable for air-liquid rate-of flow and pressure；Although this regulating valve proposes under high pressure Certain measure, but executive device must be had, it cannot achieve automatic adjustment, and finally carried out not in actual condition long-term It uses.

4, quick action emergency valve

Quick action emergency valve is the equipment that must be installed in blast furnace gas pipeline, can be automatic when blast furnace system breaks down Coal gas and hot-blast stove (TRT system or turbine) are kept apart in emergency cut-off, guarantee the safety of blast furnace (or turbine).It is existing Hydraulic cylinder of the quick action emergency valve by butterfly valve and with counterweight form.Since the hydraulic oil in hydraulic cylinder must be required in security system It is discharged rapidly in 3 seconds, is actually difficult to accomplish, reliability is excessively poor, directly affects the safety of system.There are also a kind of electricity Dynamic quick action emergency valve, is made of, structure butterfly valve, counter weight device, electromagnet, motor, turbine and worm and hydraulic damping device etc. It is excessively complicated.

Three, the accident as caused by failsafe valve:

We only know that very more cases illustrates from " the space flight failure handbook " that Yuhang Publishing House in 1994 publishes, The safety reliability of space flight valve is of crucial importance, although more than 20 years are in the past, the structure feature of valve does not still have Especially great breakthrough.

For example, universe mind booster failure, 1, since valve rod is out of order, cause engine to be burned；2, failsafe valve, Lead to rocket explosions；3, check-valves failure causes rocket launching to fail.

Beijing Aerospace Driving Force Institute points out in " Spacecraft Environment Engineering " within 2012, and the clamping stagnation of valve motion pair is stuck Phenomenon is the most common failure of ultralow temperature liquid hydrogen liquid oxygen rocket engine valve.

Xinhua News Agency Washington on April 18th, 2015, " falcon 9 " rocket of space probation technology company, the U.S. could not succeed Reason in vertical landing to a marine unmanned boat is that the throttle valve of rocket engine control flow goes wrong.

Currently, water entering accident is relatively common in all submarine accidents, be primarily referred to as seawater from each hatch, air inlet pipe and Accidents, schnorkel overhead-valve or the machine air inlet and exhaust valve leaks such as torpedo tube is poured water and various valves, connector leak.Again For example, submarine valve is substantially long bolt (valve rod), and because deep sea water pressure is huge, and open and close torque is big, opening and closing time It is long；If no matter be environmental pressure using dual-valve body core pipe valve and pressure medium have it is much, can light fast opening and closing；True Except protecting each valve and capable of individually opening and closing, design department is also conceivable to the series, parallel of multiple valves or successively opens and closes, There is strategic importance for the quality of big upgrade China submarine.

Currently, being applied to the quick action emergency valve in oil field, it is necessary to assure its reliability and safety, otherwise, when generation well It is unable to instantaneous trip valve when spray, and causes especially big casualties, equipment damage and the accident of environmental disruption；Emergency cut-off core Pipe valve can be very satisfactory solution this problem.

Currently, earthquake bring destructive power is very big, the secondary calamity that nuclear power plant accident and gas accidents generate in earthquake Huge damage is immeasurable caused by lives and properties and environment of the evil to the country and people；Currently, being widely used in Quick action emergency valve under the earthquake state of inflammable, explosive, poisonous noxious industry can't be applied effectively extensively, so, especially need Want a kind of economical and practical, reliability and the extremely strong self-operated type of safety automatically control quick action emergency valve to ensure life, equipment, money The safety in source and environment, solution this problem that hedging emergency cut-off core pipe valve can be satisfactory.

Due to do not have it is a kind of can be relied on oneself the quick action emergency valve of automatic control in the case where fire incident by medium, make The leakage for obtaining inflammable and explosive medium causes huge loss in fire incident；Big fire occurs for some oil depot of Liaoning in 2007, disappears Anti- team member emits the valve that life danger is closed on oil tank and has spent for a long time, has twisted 100 multi-turns, just completes；The leakage of combustion gas When generation with fire, if gas pipeline cannot be closed in time, the explosion accident of initiation is also fearful；Hedging is urgent Cut off above-mentioned these problems of solution that core pipe valve can be satisfactory.

Currently, the Explosion-proof valve for being applied to powder industry is also very rare, with powder industrial expansion and awareness of safety Raising and lesson written in blood, the application that the Explosion-proof valve of powder industry should be universal；Explosion-proof core pipe valve can be satisfactory solution this A problem.

Currently, be applied to space flight and aviation, naval vessel and vehicle pipeline opening/shutting valve use substantially it is electronic, surge and pneumatically control System, the control of no pressure are relied on oneself the valve of opening and closing, if, using pressure automatic open close core pipe valve, solution that can be satisfactory these Problem；Delivery vehicle opens and closes core pipe valve using speed, it is possible to reduce control system.

Currently, check valve, exhaust valve, the expansion valve etc. that are applied to car have certain problems and security risk, every year Car recall it is much related with valve；There is data to show, the oil circuit valve of car is after using solenoid valve, by being atomized, It can fuel-economizing 20 percent；Corresponding core pipe valve can solve these problems.

Currently, being applied to the valve of the pipelines such as submarine, nuclear energy, poisonous and harmful medium, inflammable and explosive medium, urban water supply also There is no two-way booster automatic stop valve, even if to solve is also to realize by complicated control circuit, expensive, reaction is slow Blunt, there is also failure, reliabilities also to hardly result in abundant guarantee for control system itself；Two-way booster automatically cuts off core pipe valve can This problem is solved, it is mentioned here to be automatically, by the medium energy of pipeline itself, do not need any other resource, control System and control equipment.

Currently, exhaust valve, drain valve are all using float-type, the circulation bore of very little, very big valve volume, and appearance It easily blocks and sealing surface wear, especially high-temperature high-pressure drain valve is the problem of industrial application, exhaust core pipe valve, hydrophobic core Pipe valve can distinguish satisfactory solution both of these problems.

Currently, safety valve, especially heavy caliber safety valve use spring poor reliability, it is again excessively multiple using pilot-operated type It is miscellaneous；Safe core pipe valve can be satisfactory solve the problems, such as from miniature to large-scale and ultra-large type safety valve.

Currently, a pipeline connects and permitted multiduty valve, valve, pressure reducing valve, regulating valve, balanced valve, non-return are such as opened and closed Valve, quick action emergency valve, not only waste of resource, also causes flow resistance, increases failure rate and maintenance cost；One function variation core pipe valve energy Enough satisfactory solution this problem.

Currently, ball-cock assembly is used in units such as power plants, it is that have one kind be not in frequent that client, which needs the condition that meets, The ball-cock assembly of opening and closing, solution this problem that floating ball core pipe valve can be satisfactory.

Currently, Wellhead tree valve, may turn off well head when the ratio of petroleum and water reaches and is not suitable for continuing exploitation, or It says during transportation, manage interior trickling is the mixture of petroleum, gas and water, and twin-core Multifunctional core pipe valve arranged side by side attempts to solve This problem realizes exhaust, hydrophobic and pressure release while on-line production send petroleum.

Currently, the electromagnet portion of solenoid valve only plays the role of opening and closing；But due to the structure feature of core pipe valve, In the case where needing, unsymmetric structure design is introduced, then, is brought using the core pipe valve of electromagnetic drive to solenoid valve new Life, that is, have a various functions such as automatic adjustment, decompression, balance, non-return, sustained release, bi-directional electromagnetic design so that whether open or Close its control the energy consumption drop to it is ultimate attainment.

Valve defect, problem and problem described above is all that core pipe valve wishes to make great efforts to solve；Core pipe valve is capable of providing A possibility that large-scale, ultra-large type pipeline valve is applied also is capable of providing a possibility that high pressure-temperature valve is applied, additionally it is possible to provide A possibility that micro valve and superminiature valve are applied in microcirculqtory system.

In the case where normal temperature and pressure, conventional media, the flow resistance of ball valve is less than core pipe valve, this is the advantage of ball valve；But High temperature and pressure, corrosive media, poisonous and harmful medium, nuclear energy medium, graininess medium, deep-sea oil gas exploitation, opening and closing resistance, Scalability characteristic, reliability properties, the application of miniature superminiature, sealing effect etc. core pipe valve are better than ball valve.

The flow resistance of safe core pipe valve be less than existing safety valve, the spring used not with media contact, reliability, service life It is better than existing safety valve, applies to from miniature to the circuit safety valve of ultra-large type and in line safety valve.

The flow resistance of non-return core pipe valve is less than existing various check-valves, structural form and advantage and safe core pipe valve almost one Sample, only the elastic force of spring requires to have any different.

It relies on oneself the structural form for adjusting core pipe valve and advantage is also about the same, the only elastic force of spring with safe core pipe valve It is required that having any different.

Depressurize the circulation Pore structure and morphology of core pipe valve, quantity can be arbitrarily devised, can accomplish rich and varied, can satisfy The requirement of various operating conditions.

Emergency cut-off core pipe valve can accomplish instantaneous trip, after pressure recovery is normal, need to automatically return to opening state State can also accomplish self-return, not need any energy and actuator.

A kind of pressure opening and closing core pipe valve can be applied to multiple fields, is the no valve of existing application field；Using In fuel charger oil filling pipe tail end, after gasoline pump stops working, pressure opening and closing core pipe valve, which will rely on oneself, to be automatically closed, and will not be gone out Fuel injection event when existing fuel charger oil filling pipe tail end leaves by oiling fuel tank；In the case that special operation condition needs, when a pipeline When failure or accident situation, the valve of the starting point of pipeline is closed, the pressure opening and closing core pipe valve of whole pipeline will be certainly Power is automatically closed；Equally, in the case that special operation condition needs, when the failure of full wafer pipe network or accident, press device stops After machine, the pressure opening and closing core pipe valve of full wafer pipe network can be also automatically closed.

Perhaps multiple groups use or are different design pressure for pressure opening and closing core pipe valve and one group in parallel of emergency cut-off core pipe valve In the case where power, interim pulse phenomenon will occur in downstream pipe network；The circular ring shape that liquid medium circulation is inputted in umbrella pipeline The pressure that pipeline is connected with the equidistant equal length output pipe of circular ring shape pipeline connection opens and closes core pipe valve, and pressure opens and closes core pipe Valve is same design engaging pressure, in this way, output end is basic synchronization phenomenon.

Summary of the invention

The object of the present invention is to provide a kind of core pipe valve, now valvular insufficient and defect is overcome, not only meet conventional It produces needs, living needs, security needs and energy conservation to need, moreover it is possible to which the needs for meeting extraordinary operating condition, high-end operating condition are also able to satisfy The needs of one valve two kinds of purposes and a valve multiple use save cost of equipment, reduce pipeline flow resistance, reduce failure Rate.

Core pipe valve is mainly technically characterized by: the valve core tube is to be connected to pressure vessel, press device, medium pipe network to consolidate Determine the coaxial sleeve II through the sleeve I of valve body, body cavity and valve body of part；There is axial interlayer in the middle part of valve core tube, every Layer is made of the intermediate pipeline section of the valve core tube of kernel and kernel radial radiation；The axially adjacent both sides of interlayer be respectively input section and The radial recirculation hole of at least one of deferent segment；Around the annular spool of interlayer and at least one sleeve larynx of sleeve I and sleeve II The ring-shaped valve seats in portion constitutes sealing pair；Difference >=0 of the outer diameter of input section and deferent segment, input section and sleeve I and deferent segment and sleeve Pipe II is that shaft hole mode cooperates the setting sealing of its at least one engaging portion；Under the action of both direction potential energy, valve body is relative to valve Core pipe makees the mobile realization opening and closing of axial reciprocating, power and energy.

The potential energy for moving axially valve body, is following at least one:

A, manpower is directly stirred；

B, valve body axial line is self-possessed sagging perpendicular to ground；

C, the pressure medium that the difference of the axial two corresponding inner face areas in inner cavity is formed is poor；

D, the inertia force in high speed traveling；

E, the centrifugal force in quickly rotating；

F, shaking force when earthquake occurs；

G, the thrust that heat-swelling element is formed；

H, the thrust that moist expansion element is formed；

I, the towing force that buoyancy elements are formed；

J, the gravity that weight element is formed；

K, liquid gathers the gravity to be formed；

L, the elastic thrust that compressed spring is formed；

M, the elastic pulling force that extension spring is formed；

N, the magnetic force that magnetic element is formed；

O, the driving force that driving element is formed.

The vertical structure of the valve body is three paragraghs, is sleeve I, inner bore cavity, sleeve II respectively；Valve body can be Well-balanced two valve of axial direction is constituted, and is also possible to tube body and end cap is constituted.

At least one sleeve of the sleeve I and sleeve II has a liner of tubular, tubular liner be located at sleeve throat just with Ring-shaped valve seats is integrally formed.

The vertical structure of the valve core tube is three paragraghs, is input section, interlayer, deferent segment respectively.

The valve body and valve core tube can be various metal materials, can be various resin materials, can be nylon material, It can be various carbon silicon materials, can be ceramics, can be stone material, can be refractory material, can be reinforced concrete, can be Rubber can be silica gel etc..

The annular spool can be with interlayer one, can be welding, can be accumulation；Surround and be embedded in every The annular spool of layer can be various wear-resisting hard materials, can be the flexible material with elastic force.

Sealing ring is arranged at least one engaging portion of the input section and sleeve I and deferent segment and sleeve II.

Bellows seal is arranged at least one engaging portion of the input section and sleeve I and deferent segment and sleeve II.

The bellows seal that the engaging portion of the input section and sleeve I and deferent segment and sleeve II is arranged, in material, work Skill and operating condition can be integrated with sleeve I in the case where permitting.

The inner cavity for one communicating pipe II penetrating through two bellows seals is set, opening and closing resistance is mitigated；Core pipe valve is related to In application documents, the sectional view some of bellows seal and communicating pipe II are using the simple technique of painting.

The bellows seal inner cavity of the engaging portion of the input section and sleeve I passes through the radial communication on input section ring wall The perforation of the preceding pressure of hole and valve reduces opening and closing resistance.

The deferent segment and the bellows seal inner cavity of the engaging portion of sleeve II are connected by the radial direction on deferent segment ring wall The perforation of the rear pressure of through-hole and valve reduces opening and closing resistance.

Lip ring is arranged at least one engaging portion of the input section and sleeve I and deferent segment and sleeve II.

The form of the inner cavity is spherical package interlayer and recirculation hole in the on state.

Inner cavity longitudinal direction form is that round pie wraps up interlayer and recirculation hole, thickness >=annular spool in the on state Diameter.

Longitudinal form of the inner cavity is that middle section is its diameter >=annular spool diameter of tubular and two radial directions The half round pie on symmetry arrangement tubular both sides, thickness >=recirculation hole width.

The interlayer is made of the intermediate pipeline section of the valve core tube of kernel and kernel radial radiation, can be it is integrated, can also To be that kernel is axially forced to two of valve core tube parts and is constituted；The axial end face of the interlayer kernel is ligulate triangle slope surface, from It is diverted to interflow, improves conveyance capacity to greatest extent, realizes that medium flow direction is steady, flow resistance is small, low pressure loss；The axis of interlayer kernel It is also possible to spherical surface to end face, can also be plane, concave surface and conical surface etc..

Two axial end faces of the interlayer kernel are arc lower guide surface, and inner cavity longitudinal direction form is fish maw shape, are located at defeated Enter section and exports a respective recirculation hole through-lumen for pars infrasegmentalis.

Sealing ring II and the annular inner wall of sleeve I and at least one sleeve of sleeve II composition around the interlayer is secondary close Envelope is secondary；Annular spool and sealing ring II around interlayer may be constructed composite seal pair, prevent equipment, pipe network, carrier vibration from drawing The valve body axial displacement of hair, meanwhile, when preventing from opening to critical state ring-shaped valve seats it is micro leave it is micro caused by annular spool Leakage, it is ensured that the zero leakage effect of interior sealing.

The annular spool is axial telescopic ripple annular solid, make ring-shaped valve seats always with the close phase of annular spool Patch, it is ensured that the zero leakage effect of interior sealing.

The sealing surface of the annular spool is unidirectional slope surface, is also possible to two-way slope surface, the gradient is best >=and 8 degree, it prevents There is locking phenomenon when being closely affixed in ring-shaped valve seats and annular spool, and can also be arc slope.

The valve body is perpendicular to ground, three kinds of situations:

One, closed type, valve body are self-possessed and sagging make annular spool upper end sealing surface and adjacent to and opposite sleeve throat annular plate valve Seat closure, potential energy move up valve body axially, are allowed to open；

Two, open type, valve body are self-possessed and sagging make annular spool lower end sealing surface and adjacent to and opposite sleeve throat annular plate valve Seat leaves, and valve body is in the open state, and potential energy moves up valve body axially, is allowed to close；

Three, open type, valve body under the reaction force of sagging and elastic element of being self-possessed, make annular spool upper end sealing surface with Adjacent sleeve throat ring-shaped valve seats leaves, and valve body is in the open state, and potential energy moves down valve body axially, is allowed to close.

There is ball between the annular outer wall of the annular inner wall and valve core tube of the sleeve I and sleeve II, is attached respectively to tuck inside the sleeve The annular inner wall of pipe I and sleeve II.

Elastic element is set between the input section and sleeve I and deferent segment and one of region of sleeve II, it can be with It is compressed spring, can also is extension spring, be also possible to butterfly spring, it can be considered in actual design in applying for spring Be adjusted axially, the effect of spring is:

One, annular spool seal face and adjacent to and opposite sleeve throat ring-shaped valve seats are closed；

Two, annular spool seal face is left with adjacent to and opposite sleeve throat ring-shaped valve seats.

The valve body lower portion idler wheel of the big core barrel valve, can also be with to mitigate the gravity in valve body axial reciprocating moving process Slideway is set.

It is set between the input section end and I end of sleeve and one of region of II end of deferent segment end and sleeve Set safety belt.

The permanent magnet for being attracted adjacent valve body end face is set in one of end of the input section and deferent segment.

The valve body is only one axial end face of its inner cavity of bell-jar structure, another face area is zero.

The lip ring is the lip that unidirectional slope surface is respectively embedded into II end of sleeve I and sleeve, sleeve I and sleeve II The outer ring surface of end is threadedly coupled with a spiral fastener respectively, and lip ring is equal during spiral fastener precession It is promoted to interlayer direction, increasingly holding valve core tube, has the function that tight seal, prevent valve body from moving axially easily and diameter To rotation.

The valve body is axially perpendicular to its shoulder of ground suit counterweight.

Driving element setting connection valve body outside the valve body and move axially valve body.

The driving element is foot pedal.

The driving element is that have open, adjust, closing, positioning, the rope of position-limiting action；The design application of rope It can accomplish very more technical solutions:

A, one end connection handwheel or motor；

B, the sagging valve of valve body self weight is closed, and rope is opened, adjusts, closed；

C, the sagging valve opening of valve body self weight, rope are adjusted, are closed；

D, elastic element elastic force closes valve, and rope is opened, adjusts, closed；

E, elastic element elastic force makes valve opening, and rope is adjusted, closed；

F, it is to open that rope is tensed to the direction of input section, and it is to close that rope is tensed to the direction of deferent segment；

G, it is to close that rope is tensed to the direction of input section, and it is to open that rope is tensed to the direction of deferent segment；

H, it is to close that rope is tensed to the direction of input section, the rope in the direction of the rope and deferent segment in the direction of input section Equidistant simultaneously is to open, and it is to close that rope is tensed to the direction of deferent segment；

I, rope positioning, limit.

The driving element is that one of end face of sleeve I and sleeve II is resistance discs.

The driving element is valve rod base to be arranged in one of end of input section and deferent segment, valve rod passes through valve rod Seat, tail portion is connect with adjacent valve end.

The driving element is hydraulic cylinder to be arranged in one of end of input section and deferent segment, cylinder chamber is logical The preceding pressure perforation of communicating pipe and valve is crossed, hydraulic stem one end connects valve body.

The driving element is that input section end and I end of sleeve and deferent segment end are respectively provided with one with II end of sleeve A snak link, input section and deferent segment both ends are respectively provided with the extension spring that can be affiliated to the snak link of adjacent sleeve；Three A technical solution:

A, it is to open that input section and sleeve I, which are affiliated to, and it is to close that deferent segment is affiliated to sleeve II；

B, it is to close that input section and sleeve I, which are affiliated to, and it is to open that deferent segment is affiliated to sleeve II；

C, it is to close that input section and sleeve I, which are affiliated to, input section and sleeve I and deferent segment and sleeve II, while being affiliated to and be out It opens, it is to close that deferent segment is affiliated to sleeve II.

The driving element is that electromagnet is arranged at least one end of axial two ends of input section and deferent segment.

There are one and the matched iron block of electromagnet in the corresponding sleeve end face of the electromagnet.

The electromagnet contains plug, and plug one end connects the axially adjacent end of valve body.

The driving element is at least one engaging portion setting ripple of input section and sleeve I and deferent segment and sleeve II Pipe pressure cabin, bellows pressure chamber inner cavity pass through the perforation of the preceding pressure of communicating pipe and valve.

There is the straight pin of an axial direction in I end face of sleeve of bellows pressure chamber inner cavity and is mounted on input section end Communicating pipe nozzle match and be in same axial line, when valve soon close and closing process in, straight pin by it is close, by Step is embedded in, until being completely embedded into communicating pipe nozzle.

The driving element is that bellows pressure chamber, bellows pressure chamber inner cavity is arranged in the engaging portion of input section and sleeve I It is penetrated through by the preceding pressure in radial communication hole and valve on input section ring wall.

The bellows pressure chamber, while having both sealing function.

The driving element is, between II end of input section end and I end of sleeve and deferent segment end and sleeve extremely Ripple blind pipe is arranged in a few region, and ripple blind pipe passes through the perforation of the preceding pressure of communicating pipe and valve.

The driving element is that ripple blind pipe is arranged between II end of deferent segment end and sleeve, and ripple blind pipe passes through valve The duct and inner cavity of body hollow out penetrate through.

The sealing of engaging portion setting is also: A, Elastomer Bellows Seal, B, temperature control Elastomer Bellows Seal；Bullet Property bellows seal has both the characteristic of sealing element and elastic element；The temperature control Elastomer Bellows Seal is thermal control material structure At can under the conditions of the temperature of variation with axial stretching characteristic.

The medium overcurrent of the valve body and spool touches part, considers to avoid acute angle, as far as possible rounding in valve design, with Reduction resistance is sought, meanwhile, prevent specific operation lower prong rubescent initiation medium rapid expansion of generating heat from leading to the generation of accident.

In conclusion core pipe valve of the present invention has the active effect that

1, structure is simple, convenient for manufacture；

2, bellows seal can accomplish no external leakage；

3, ring-shaped valve seats and annular spool are axial straight contacts, are not rubbed, and sealing effect is good；

4, body cavity is convenient for cleaning；

5, long service life, cost performance are high；

6, it adapts to from miniature to the various bores of ultra-large type；

7, various operating conditions are adapted to substantially；

8, the medium flow direction of pipe network is consistent with the structure of valve flowing channel design flow direction, and flow resistance is small；

Even if operability can be still good 9, in the state of high pressure or negative pressure；

10, energy consumption is reduced, production efficiency is improved；

11, it is convenient for various driving methods, reduces driving cost；

12, safety, reliability and the long-term effect of valve are improved.

Detailed description of the invention

Attached drawing 1 is the full the schematic diagram of the section structure in longitudinal direction of one embodiment of the invention.

Attached drawing 2 is the full the schematic diagram of the section structure of transverse direction of one embodiment of the invention.

Attached drawing 3 is the full the schematic diagram of the section structure in longitudinal direction of second embodiment of the invention.

Attached drawing 4 is the full the schematic diagram of the section structure of transverse direction of second embodiment of the invention.

Attached drawing 5 is the full the schematic diagram of the section structure in longitudinal direction of third embodiment of the invention.

Attached drawing 6 is the full the schematic diagram of the section structure of transverse direction of third embodiment of the invention.

Attached drawing 7 is the full the schematic diagram of the section structure in longitudinal direction of the 4th embodiment of the invention.

Attached drawing 8 is the full the schematic diagram of the section structure of transverse direction of the 4th embodiment of the invention.

Attached drawing 9,10,11,12 is the full the schematic diagram of the section structure in longitudinal direction of the 5th embodiment of the invention.

Attached drawing 13,14 is the full the schematic diagram of the section structure in longitudinal direction of the 6th embodiment of the invention.

Attached drawing 15,16 is the full the schematic diagram of the section structure in longitudinal direction of the 7th embodiment of the invention.

Attached drawing 17,18 is the full the schematic diagram of the section structure in longitudinal direction of the 8th embodiment of the invention.

Attached drawing 19,20,21 is the full the schematic diagram of the section structure in longitudinal direction of the 9th embodiment of the invention.

Attached drawing 22 is the full the schematic diagram of the section structure in longitudinal direction of the tenth embodiment of the invention.

Attached drawing 23,24 is the full the schematic diagram of the section structure in longitudinal direction of the tenth one embodiment of the invention.

Attached drawing 25,26 is the full the schematic diagram of the section structure in longitudinal direction of the 12nd embodiment of the invention.

Attached drawing 27,28 is the full the schematic diagram of the section structure in longitudinal direction of the 13rd embodiment of the invention.

Attached drawing 29,30 is the full the schematic diagram of the section structure in longitudinal direction of the 14th embodiment of the invention.

Attached drawing 31,32 is the full the schematic diagram of the section structure in longitudinal direction of the 15th embodiment of the invention.

Attached drawing 33,34 is the full the schematic diagram of the section structure in longitudinal direction of the 16th embodiment of the invention.

Attached drawing 35,36 is the full the schematic diagram of the section structure in longitudinal direction of the 17th embodiment of the invention.

Attached drawing 37,38 is the full the schematic diagram of the section structure in longitudinal direction of the 18th embodiment of the invention.

Attached drawing 39,40 is the full the schematic diagram of the section structure in longitudinal direction of the 19th embodiment of the invention.

Attached drawing 41,42 is the full the schematic diagram of the section structure in longitudinal direction of the 20th embodiment of the invention.

Attached drawing 43,44 is the full the schematic diagram of the section structure in longitudinal direction of the 20th one embodiment of the invention.

Attached drawing 45,46 is the full the schematic diagram of the section structure in longitudinal direction of the 22nd embodiment of the invention.

Attached drawing 47 is the full the schematic diagram of the section structure in longitudinal direction of the 23rd embodiment of the invention.

Attached drawing 48 is the full the schematic diagram of the section structure in longitudinal direction of the 24th embodiment of the invention.

Attached drawing 49 is the full the schematic diagram of the section structure in longitudinal direction of the 25th embodiment of the invention.

Attached drawing 50 is the full the schematic diagram of the section structure in longitudinal direction of the 26th embodiment of the invention.

Attached drawing 51,52 is the full the schematic diagram of the section structure in longitudinal direction of the 27th embodiment of the invention.

Attached drawing 53,54 is the full the schematic diagram of the section structure in longitudinal direction of the 28th embodiment of the invention.

Attached drawing 55,56 is longitudinal semi-section structural schematic diagram of the 29th embodiment of the invention.

Attached drawing 57,58 is the full the schematic diagram of the section structure in longitudinal direction of the 30th embodiment of the invention.

Attached drawing 59,60 is the full the schematic diagram of the section structure in longitudinal direction of the 30th one embodiment of the invention.

Attached drawing 61 is the full the schematic diagram of the section structure in longitudinal direction of the 32nd embodiment of the invention.

Attached drawing 62 is longitudinal semi-section structural schematic diagram of the 33rd embodiment of the invention.

Attached drawing 63,64 is the full the schematic diagram of the section structure in longitudinal direction of the 34th embodiment of the invention.

Attached drawing 65,66 is the full the schematic diagram of the section structure in longitudinal direction of the 35th embodiment of the invention.

Attached drawing 67,68 is the full the schematic diagram of the section structure in longitudinal direction of the 36th embodiment of the invention.

Attached drawing 69,70 is the full the schematic diagram of the section structure in longitudinal direction of the 37th embodiment of the invention.

Attached drawing 71,72 is the full the schematic diagram of the section structure in longitudinal direction of the 38th embodiment of the invention.

Attached drawing 73,74 is the full the schematic diagram of the section structure in longitudinal direction of the 39th embodiment of the invention.

Attached drawing 75,76 is the full the schematic diagram of the section structure in longitudinal direction of the 40th embodiment of the invention.

Attached drawing 77,78 is the full the schematic diagram of the section structure in longitudinal direction of the 40th one embodiment of the invention.

Attached drawing 79,80 is the full the schematic diagram of the section structure in longitudinal direction of the 42nd embodiment of the invention.

Attached drawing 81,82 is the full the schematic diagram of the section structure in longitudinal direction of the 43rd embodiment of the invention.

Attached drawing 83,84,85,86 is the full the schematic diagram of the section structure in longitudinal direction of 44th embodiment of the invention.

Attached drawing 87,88,89 is the full the schematic diagram of the section structure in longitudinal direction of the 45th embodiment of the invention.

Attached drawing 90,91 is the full the schematic diagram of the section structure in longitudinal direction of the 46th embodiment of the invention.

Attached drawing 92,93,94 is the full the schematic diagram of the section structure in longitudinal direction of the 47th embodiment of the invention.

Attached drawing 95,96 is the full the schematic diagram of the section structure in longitudinal direction of the 48th embodiment of the invention.

Attached drawing 97,98 is the full the schematic diagram of the section structure in longitudinal direction of the 49th embodiment of the invention.

Attached drawing 99,100 is the full the schematic diagram of the section structure in longitudinal direction of the 50th embodiment of the invention.

Attached drawing 101,102 is the full the schematic diagram of the section structure in longitudinal direction of the 50th one embodiment of the invention.

Attached drawing 103,104,105,106 is the full the schematic diagram of the section structure in longitudinal direction of the 52nd embodiment of the invention.

Attached drawing 107,108,109,110 is the full the schematic diagram of the section structure in longitudinal direction of the 53rd embodiment of the invention.

Attached drawing 111,112 is the full the schematic diagram of the section structure in longitudinal direction of the 54th embodiment of the invention.

Attached drawing 113,114 is the full the schematic diagram of the section structure in longitudinal direction of the 55th embodiment of the invention.

Attached drawing 115,116,117,118 is the full the schematic diagram of the section structure in longitudinal direction of the 56th embodiment of the invention.

Attached drawing 119,120 is the full the schematic diagram of the section structure in longitudinal direction of the 57th embodiment of the invention.

Attached drawing 121,122 is the full the schematic diagram of the section structure in longitudinal direction of the 58th embodiment of the invention.

Attached drawing 123,124 is the full the schematic diagram of the section structure in longitudinal direction of the 59th embodiment of the invention.

Attached drawing 125,126 is the full the schematic diagram of the section structure in longitudinal direction of the 60th embodiment of the invention.

Attached drawing 127,128,129,130,131 is longitudinal complete section face structural representation of the 60th one embodiment of the invention Figure.

Attached drawing 132,133,134,135,136,137,138,139 is 101 sealing surface of annular spool of the embodiment of the present invention The full the schematic diagram of the section structure in the longitudinal direction summarized.

1- valve core tube, 1 '-input section, 1 in figure "-deferent segment, 100- interlayer, 100 '-ligulate triangle slope surfaces, 101- Annular spool, 102- land, 103- recirculation hole, 105- tap, 105 "-intercommunicating pore, 2- valve body, 2 '-sleeves I, 2 "-sleeve Pipe II, the inner cavity 200-, 200 "-duct, 201- ring-shaped valve seats, 202- ripple blind pipe, 203 '-resistance discs, 205 '-straight pins, 206- spiral fastener, 3- Elastomer Bellows Seal, 300- bellows seal, 301- temperature control Elastomer Bellows Seal, 302- sealing ring, 302 '-sealing rings II, 303- lip ring, 306- bellows pressure chamber, 4- compressed spring, 4 '-stretch Spring, 401- snak link, 5- rope, 501- handwheel, 501 '-handles, 502- foot pedal, 503 '-fastening screws, 504- valve rod, 504 '-valve rod bases, 506- hydraulic cylinder, 508- electromagnet, 508 '-plugs, 509- permanent magnet, 509 "-iron block, 6- butt tube, 600- communicating pipe, 602- communicating pipe II, 603- triple valve, 702- limiter, 705- safety belt, 707- ball, 708- counterweight, 800- idler wheel, 802- pipe connection buckle.

Specific embodiment

Embodiment summary:

The valve core tube 1 be the coaxial sleeve I 2 through valve body 2 of fixing piece ', 2 inner cavity 200 of valve body and valve body 2 Sleeve II 2 "；There is axial interlayer 100 in the middle part of valve core tube 1, interlayer 100 is by the valve core tube 1 of kernel and kernel radial radiation Between pipeline section constitute；The axially adjacent both sides of interlayer 100 are input section 1 ' and deferent segment 1 respectively " at least one radial recirculation hole 103；Around the annular spool 101 and sleeve I 2 ' and sleeve II 2 of interlayer 100 " at least one sleeve throat ring-shaped valve seats 201 constitute sealing pair；Input section 1 ' and deferent segment 1 " outer diameter difference >=0, input section 1 ' and sleeve I 2 ' and deferent segment 1 " with tuck inside the sleeve Pipe II 2 " is that shaft hole mode cooperates the setting sealing of its at least one engaging portion；Under the action of both direction potential energy, valve body 2 is opposite It is mobile to make axial reciprocating in valve core tube 1.

Embodiment one

Referring to attached drawing 1,2, core pipe valve described in the present embodiment, the valve core tube 1 is that fixing piece is coaxial through valve body 2 Sleeve I 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；There is axial interlayer 100 in the middle part of valve core tube 1, in interlayer 100 Two axial end faces of core are spherical surfaces；The axially adjacent both sides of interlayer 100 are input section 1 ' and deferent segment 1 respectively " four diameters To recirculation hole 103；Surround and the sealing surface of annular spool 101 that is integrated with interlayer 100 be two-way slope surface and sleeve I 2 ' and " ring-shaped valve seats 201 of throat constitutes sealing pair to sleeve II 2；Input section 1 ' is with sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " Shaft hole mode cooperates its engaging portion to be respectively provided with bellows seal 300；The form of inner cavity 200 be it is spherical wrap up in the on state every Layer 100 and recirculation hole 103.

It is the full the schematic diagram of the section structure in longitudinal direction of open state shown in attached drawing 1.

It is the full the schematic diagram of the section structure of transverse direction of open state shown in attached drawing 2.

Embodiment two

Referring to attached drawing 3,4, core pipe valve described in the present embodiment, the form of the inner cavity 200 be it is spherical in the on state Wrap up interlayer 100 and recirculation hole 103；Two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；Interlayer 100 Axially adjacent both sides are input section 1 ' and deferent segment 1 respectively " two radial recirculation holes 103；It surround and is embedded in the ring of interlayer 100 The sealing surface of shape spool 101 is that " ring-shaped valve seats 201 of throat constitutes sealing pair for two-way slope surface and sleeve I 2 ' and sleeve II 2； The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows seal 300 and sealing ring 302, a communicating pipe II 602 penetrates through the inner cavity of two bellows seals 300；Sleeve I 2 ' and sleeve II 2 " have tubular Liner.

It is the full the schematic diagram of the section structure in longitudinal direction of open state shown in attached drawing 3.

It is the full the schematic diagram of the section structure of transverse direction of open state shown in attached drawing 4.

Embodiment three

Referring to attached drawing 5,6, core pipe valve described in the present embodiment, longitudinal form of the inner cavity 200 is that round pie is being opened Interlayer 100 and recirculation hole 103, the diameter of thickness >=annular spool 101 are wrapped up under state；Two axial directions of 100 kernel of interlayer End face is ligulate triangle slope surface 100 '；The axially adjacent both sides of interlayer 100 are input section 1 ' and deferent segment 1 respectively " two diameters To recirculation hole 103；Surround and the sealing surface of annular spool 101 that is integrated with interlayer 100 be arc slope and sleeve I 2 ' and " ring-shaped valve seats 201 of throat constitutes sealing pair to sleeve II 2；Input section 1 ' and sleeve I 2 ' and deferent segment 1 " and sleeve II 2 " Engaging portion is respectively provided with bellows seal 300.

It is the full the schematic diagram of the section structure in longitudinal direction of open state shown in attached drawing 5.

It is the full the schematic diagram of the section structure of transverse direction of open state shown in attached drawing 6.

Example IV

Referring to attached drawing 7,8, core pipe valve described in the present embodiment, longitudinal form of the inner cavity 200 is that middle section is cylinder The half round pie of the diameter of its diameter >=annular spool 101 of shape and two radial symmetric arrangement tubular both sides, thickness >=stream The width of through-hole 103；Two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；Axially adjacent the two of interlayer 100 Side is input section 1 ' and deferent segment 1 respectively " two radial recirculation holes 103；Around the sealing of the annular spool 101 of interlayer 100 Face is that " ring-shaped valve seats 201 of throat constitutes sealing pair for two-way slope surface and sleeve I 2 ' and sleeve II 2；Input section 1 ' and sleeve I 2 ' and the engaging portion of deferent segment 1 " with sleeve II 2 " be respectively provided with bellows seal 300.

It is the full the schematic diagram of the section structure in longitudinal direction of open state shown in attached drawing 7.

It is the full the schematic diagram of the section structure of transverse direction of open state shown in attached drawing 8.

Embodiment five

Referring to attached drawing 9,10,11,12, core pipe valve described in the present embodiment, for opening and closing, adjusting, depressurize；The interlayer 100 are made of the intermediate pipeline section that kernel is axially forced to valve core tube, and two axial end faces of 100 kernel of interlayer are spherical surfaces；Input section 1 ' and deferent segment 1 " there are four radial recirculation holes 103；It is round for surrounding and be embedded in the sealing surface of the annular spool 101 of interlayer 100 " ring-shaped valve seats 201 of throat constitutes sealing pair for arc slope surface and sleeve I 2 ' and sleeve II 2；Input section 1 ' and sleeve I 2 ' and defeated The engaging portion of section 1 " with sleeve II 2 " is respectively provided with bellows seal 300 out；Sleeve I 2 ' and sleeve II 2 " have the interior of tubular Lining；Sleeve I 2 ' and sleeve II 2 " annular inner wall and valve core tube 1 annular outer wall between have ball 707, be attached respectively to sleeve I 2 ' and sleeve II 2 " annular inner wall, move axially valve body 2 more flexible.

It is open state, pushing valve body 2 to deferent segment 1, " direction is mobile, " the annular plate valve of throat of sleeve II 2 shown in attached drawing 9 Seat 201 leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and the perforation of inner cavity 200, flow of media.

Shown in attached drawing 10, being adjustment state, continue to press on valve body 2 to deferent segment 1, " direction is mobile, I 2 ' annular inner wall of sleeve The major part for having covered 1 ' recirculation hole 103 of input section, reduces medium and passes through, and has the function that adjusting or decompression.

Shown in attached drawing 11, by closed state, to push valve body 2 mobile to 1 ' direction of input section, sleeve II 2 is " in annular Wall covers deferent segment 1 " recirculation hole 103 the overwhelming majority, " ring-shaped valve seats 201 of throat is sleeve II 2 with annular spool 101 It will be affixed.

It shown in attached drawing 12, is in off state, continues to press on valve body 2 to the movement of 1 ' direction of input section, sleeve II 2 be " throat Ring-shaped valve seats 201 is closely affixed with annular spool 101, cuts off medium flow field.

Embodiment six

Referring to attached drawing 13,14, core pipe valve described in the present embodiment is adjusted for temperature control；The valve core tube 1 hangs down for fixing piece Directly in ground it is coaxial from bottom to up through the sleeve I 2 of valve body 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "； The interlayer 100 is made of the intermediate pipeline section that kernel is axially forced to valve core tube, and two axial end faces of 100 kernel of interlayer are ligulates Triangle slope surface 100 '；It surround and is unidirectional slope surface and II 2 " throat of sleeve with 101 sealing surface of annular spool of 100 one of interlayer Ring-shaped valve seats 201 constitutes sealing pair；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；The outer diameter of input section 1 ' Greater than deferent segment 1 " outer diameter；Bellows seal 300 is arranged in the engaging portion of deferent segment 1 " with sleeve II 2 "；Input section 1 ' and sleeve Pipe I 2 ' engaging portion be provided that the temperature control elastic bellows for moving up valve body 2 axially are close Sealing 301, the initial stage, temperature control Elastomer Bellows Seal 301 be natural length, be semi-open state, sleeve II 2 " ring Shape inner wall has covered deferent segment 1 " recirculation hole 103 is a part of, sleeve II 2 ", and the ring-shaped valve seats 201 of throat leaves annular spool 101, When the temperature of pressure medium and environment increases, valve body 2 is axial to be moved up, when the temperature of pressure medium and environment reaches normal temperature When, valve is in full open state.

Shown in attached drawing 13, it is full open state, makes in 2 axial direction of valve body in the case that pressure medium and medium temperature are got higher It moves, input section 1 ' and deferent segment 1 " penetrate through, flow of media with inner cavity 200.

It is adjustment state shown in attached drawing 14, makes valve body 2 axial in the case that pressure medium and medium temperature continue to get higher It moves up, I 2 ' annular inner wall of sleeve has covered a part of 1 ' recirculation hole 103 of input section, reduces the flow of high-temperature medium, medium pressure Power and the higher open degree of temperature are smaller.

Embodiment seven

Referring to attached drawing 15,16, core pipe valve described in the present embodiment is adjusted for temperature control；Two of 100 kernel of interlayer Axial end face is plane；Input section 1 ' to 100 direction of interlayer be successively four small radial recirculation holes 103 and four smaller diameters To recirculation hole 103, " there are four big radial recirculation hole 103, the circulation gross area of 1 ' recirculation hole 103 of input section is less than deferent segment 1 " the circulation gross area of recirculation hole 103 of deferent segment 1；The sealing surface for surrounding and being embedded in the annular spool 101 of interlayer 100 is double pitch " ring-shaped valve seats 201 of throat constitutes sealing pair for face and sleeve I 2 ' and sleeve II 2；Input section 1 ' is set with I 2 ' engaging portion of sleeve Temperature control Elastomer Bellows Seal 301 is set, I 2 ' end of sleeve is that the tube wall of an extension has wrapped up the elastic corrugated seal of tube of temperature control Part 301；Bellows seal 300 is arranged in the engaging portion of deferent segment 1 " with sleeve II 2 ".

It is open state shown in attached drawing 15, at this point, the pressure medium of pipe network and temperature are normal, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrates through, flow of media.

It is adjustment state shown in attached drawing 16, since temperature control Elastomer Bellows Seal 301 is in the sensing for being higher than normal temperature Under it is axially extending, pushing valve body 2 to deferent segment 1, " direction is mobile, and it is four small to have covered input section 1 ' for I 2 ' annular inner wall of sleeve Recirculation hole 103, only there are four smaller recirculation hole 103 circulate, reduce high-temperature medium and pass through, reach the work of adjusting or cooling With.

Embodiment eight

Referring to attached drawing 17,18, core pipe valve described in the present embodiment is used for non-return；The valve core tube 1 be fixing piece perpendicular to Ground it is coaxial from bottom to up through the sleeve I 2 of valve body 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；Interlayer Two axial end faces of 100 kernels are ligulate triangle slope surfaces 100 '；" there are two radial recirculation holes for input section 1 ' and deferent segment 1 103；The sealing surface of annular spool 101 is unidirectional slope surface and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' is respectively provided with bellows seal 300 with the engaging portion of sleeve I 2 ' and deferent segment 1 " and sleeve II 2 "；The outer diameter of input section 1 ' is big In deferent segment 1 " outer diameter, valve body 2, which is that its inner cavity of bell-jar structure 200 is axial, only has upper surface, and lower end surface area is zero.

It is open state, at this point, pipe network pressure medium is normal, i.e., pressure medium is to 200 upper surface of inner cavity shown in attached drawing 17 Force be greater than valve body 2 from gravity, that is to say, that as long as pipe network generates and is greater than valve body 2 and just can push valve from the operating pressure of gravity Body 2 is axial to be moved up, and " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and 1 " of deferent segment to sleeve II 2 therewith Recirculation hole 103 is penetrated through with inner cavity 200, flow of media.

It shown in attached drawing 18, is in off state, at this point, pipe network pressure medium subnormal pressure or upstream lose pressure Source, valve body 2 be self-possessed it is axial moves down, sleeve II 2 " ring-shaped valve seats 201 of throat also return and the close phase of annular spool 101 therewith Patch, cuts off the refluence medium in downstream.

Embodiment nine

Referring to attached drawing 19,20,21, core pipe valve described in the present embodiment, for pressure opening and closing, adjusting of relying on oneself, decompression, flat Weighing apparatus, non-return；Two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；It surround and is embedded in the ring of interlayer 100 The sealing surface of shape spool 101 is arc slope and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' and defeated " there are two radial recirculation holes 103 for section 1 out；Input section 1 ' and the engaging portion of sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " are all provided with Set bellows seal 300；The outer diameter of input section 1 ' is greater than deferent segment 1 " outer diameter, therefore, two of inner cavity 200 are corresponding axial End face forms pressure difference；Compressed spring 4 is set between deferent segment 1 " end and sleeve II 2 " end.

It is opened by pressure state shown in attached drawing 19, at this point, pipe network pressure medium is normal, two axial end faces of inner cavity 200 The thrust that the difference of suffered pressure is formed is greater than the elastic force of compressed spring 4, pushes valve body 2 to deferent segment 1, and " direction is mobile, sleeve The recirculation hole 103 of pipe II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " is and inner cavity 200 perforations, flow of media.

Shown in attached drawing 20, for adjusting, decompression, equilibrium state, at this point, pipe network is higher than normal pressure, two axis of inner cavity 200 The thrust formed to the difference of pressure suffered by end face is higher than the elastic force of compressed spring 4, and it is " square to continue to press on valve body 2 to deferent segment 1 To movement, the recirculation hole 103 that I 2 ' annular inner wall of sleeve has covered input section 1 ' is most of, rate-of flow adjusted, balanced, Pressure is reduced.

It shown in attached drawing 21, is in off state, at this point, pipe network subnormal pressure or upstream lose pressure source, inner cavity 200 The thrust that the difference of pressure suffered by axial ends face is formed is less than the elastic force of compressed spring 4, then the axial return of valve body 2, sleeve II 2 " ring-shaped valve seats 201 of throat is also closely affixed with annular spool 101 therewith, meanwhile, cutting downstream media is flow backwards.

Embodiment ten

Referring to attached drawing 22, core pipe valve described in the present embodiment is atomized for second level；Two axis of 100 kernel of interlayer It is plane to end face；101 sealing surface of annular spool is arc slope and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes sealing It is secondary；There are four small radial recirculation hole 103, deferent segments 1 for input section 1 ', and " there are four smaller radial recirculation holes 103；Input section 1 ' Bellows seal 300 is respectively provided with the engaging portion of sleeve I 2 ' and deferent segment 1 " with sleeve II 2 "；The outer diameter of input section 1 ' is greater than Deferent segment 1 " outer diameter, therefore, the corresponding axial end face of two of inner cavity 200 forms pressure difference；Deferent segment 1 " end and sleeve II Compressed spring 42 " is set between end.

It is open state shown in attached drawing 22, pipe network pressure medium is normal, the medium radial recirculation hole small by input section 1 ' 103 reach level-one atomization into inner cavities 200, meanwhile, the medium being atomized is there is also one power and grants two axis of inner cavity 200 To end face, the thrust that the difference of pressure suffered by two axial end faces of inner cavity 200 is formed is greater than the elastic force of compressed spring 4, pushes away " direction is mobile, and " ring-shaped valve seats 201 of throat leaves annular spool 101 to sleeve II 2, Jie being atomized to deferent segment 1 for moving valve 2 Matter is atomized and circulates further through deferent segment 1 " smaller recirculation hole 103 enters deferent segment 1 " inner cavity realization second level.

Embodiment 11

Referring to attached drawing 23,24, core pipe valve described in the present embodiment is used for safety, pressure release；The valve core tube 1 is fixing piece Perpendicular to ground it is coaxial from bottom to up through the sleeve I 2 of valve body 2 ', the sleeve II of 2 inner cavity 200 of valve body and valve body 2 2″；Two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；Annular spool 101 around interlayer 100 is annular Corrugated body, the sealing surface of front end are unidirectional slope surface and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' " there are two radial recirculation holes 103 with deferent segment 1；Input section 1 ' and sleeve I 2 ' engaging portion bellows seal 300 is set, Sealing ring 302 is arranged in the engaging portion of deferent segment 1 " with sleeve II 2 "；The outer diameter of input section 1 ' be greater than deferent segment 1 " outer diameter, because This, the corresponding axial end face of two of inner cavity 200 forms pressure difference；The setting of 1 ' end of input section is attracted the permanent of I 2 ' end face of sleeve Magnet 509；Input section 1 ' and sleeve I 2 ' 300 inner cavity of bellows seal of engaging portion pass through the diameter on 1 ' ring wall of input section To intercommunicating pore 105 " and the preceding pressure of valve penetrates through.

It shown in attached drawing 23, is in off state, under normal circumstances, pipe network pressure medium is normal, two axial ends of inner cavity 200 The thrust that the pressure medium difference that face is subject to is formed is less than the magnetic force for adding permanent magnet 509 from gravity of valve body 2, II 2 " throat of sleeve Ring-shaped valve seats 201 be closely affixed with annular spool 101, I 2 ' end face of sleeve and permanent magnet 509 are attracting.

It is open state, at this point, pipe network pressure medium superelevation is in normal pressure, two axis of inner cavity 200 shown in attached drawing 24 The thrust superelevation formed to the difference of pressure suffered by end face pushes valve in the magnetic force for adding permanent magnet 509 from gravity of valve body 2 Body 2 is axial to be moved up, the circulation of sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " Hole 103 and inner cavity 200 penetrate through, the release of superpressure medium；What the difference of the pressure suffered by two axial end faces of inner cavity 200 was formed Thrust is less than valve body 2 from gravity, and valve body 2 is axial to be moved down, and " ring-shaped valve seats 201 of throat is gradually close to annular spool for sleeve II 2 101, " the ring-shaped valve seats 201 and annular of throat at this point, the magnetic force of permanent magnet 509 attracts I 2 ' end face of sleeve, until sleeve II 2 Spool 101 is closely affixed.

The annular spool 101 and permanent magnet 509 that annular corrugated body is arranged prevent from being frequent interrupted row when critical pressure The phenomenon that putting.

Embodiment 12

Referring to attached drawing 25,26, core pipe valve described in the present embodiment can be used for pressure opening and closing, isolation, peace from structure Entirely, non-return；Two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；101 sealing surface of annular spool is double To slope surface and sleeve II 2, " ring-shaped valve seats 201 of throat constitutes sealing pair；" there are two radial flows for input section 1 ' and deferent segment 1 Through-hole 103；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows seal 300；It is defeated The outer diameter for entering section 1 ' is greater than deferent segment 1 " outer diameter, therefore, two axial end faces of inner cavity 200 form pressure difference；Sleeve II 2 " " setting makes the compressed spring 4 of the axial return of valve body 2 between end with deferent segment 1.

It is opened and closed for pressure:

It shown in attached drawing 25, is in off state, pipeline pressure medium is lower than requirements, two axial end face institutes of inner cavity 200 The thrust that the difference for the pressure being subject to is formed is less than the elastic force of the compressed spring 4, " ring-shaped valve seats 201 and annular plate valve of throat of sleeve II 2 Core 101 is closely affixed.

It is open state shown in attached drawing 26, at this point, pipeline pressure medium is greater than requirements, two axial ends of inner cavity 200 The thrust that the difference of pressure suffered by face is formed is greater than the elastic force of compressed spring 4, pushes valve body 2 to deferent segment 1 " direction is mobile, The recirculation hole 103 of sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " with it is interior Chamber 200 penetrates through, flow of media.

For being isolated:

It shown in attached drawing 25, is in off state, the rupture of pipe network upstream line, the unexpected subnormal pressure of pressure medium, inner cavity The thrust that the difference of pressure suffered by 200 two axial end faces is formed is less than the elastic force of compressed spring 4, and sleeve II 2 be " throat Ring-shaped valve seats 201 is closely affixed with annular spool 101；At this point, pipe network upstream equipment stops working.

It is open state, at this point, pipe network pressure medium is normal, suffered by two axial end faces of inner cavity 200 shown in attached drawing 26 The thrust that the difference of the pressure arrived is formed is greater than the elastic force of compressed spring 4, and pushing valve body 2 to deferent segment 1, " direction is mobile, sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 passed through with inner cavity 200 It is logical, flow of media.

For safety:

It shown in attached drawing 25, is in off state, pipe network pressure medium is normal, suffered by two axial end faces of inner cavity 200 Elastic force of the thrust that the difference of pressure is formed less than compressed spring 4, the sleeve II 2 " ring-shaped valve seats 201 and annular spool 101 of throat Closely it is affixed.

It is open state, at this point, pipe network pressure medium superelevation is in normal pressure, two axis of inner cavity 200 shown in attached drawing 26 The thrust superelevation formed to the difference of pressure suffered by end face pushes valve body 2 to 1 " direction of deferent segment in the elastic force of compressed spring 4 It is mobile, the recirculation hole 103 of sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " and Inner cavity 200 penetrates through, the release of superpressure medium.

For non-return:

It shown in attached drawing 25, is in off state, pipe network upstream loses pressure source, suffered by two axial end faces of inner cavity 200 Pressure difference formed thrust be less than compressed spring 4 elastic force, " the ring-shaped valve seats 201 and annular spool of throat of sleeve II 2 101 are closely affixed, meanwhile, prevent downstream media from flowing backwards.

Embodiment 13

Referring to attached drawing 27,28, core pipe valve described in the present embodiment is opened and closed for centrifugal force；The valve core tube 1 is fixing piece It is coaxial from bottom to up through the sleeve I 2 of valve body 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；In interlayer 100 Two axial end faces of core are ligulate triangle slope surfaces 100 '；" there are two the radial flows of well-balanced arrangement for input section 1 ' and deferent segment 1 Through-hole 103；The sealing surface of annular spool 101 is two-way slope surface and sleeve I 2 ' and " the equal structure of ring-shaped valve seats 201 of throat of sleeve II 2 At sealing pair；Input section 1 ' and sleeve I 2 ' engaging portion bellows seal 300, the knot of deferent segment 1 " with sleeve II 2 " are set Elastomer Bellows Seal 3 is arranged in conjunction portion；Sleeve II 2 " has the liner of tubular.

It is open state shown in attached drawing 27, the centrifugal force effect in rotary course, Elastomer Bellows Seal 3 is pressed Contracting, " direction is mobile, and " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' to sleeve II 2 to deferent segment 1 for valve body 2 With deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, flow of media.

Shown in attached drawing 28, be in off state, after rotation stops, due to the elastic force of Elastomer Bellows Seal 3, valve body 2 to 1 ' direction of input section is mobile, and " ring-shaped valve seats 201 of throat is closely affixed sleeve II 2 with annular spool 101.

Embodiment 14

Referring to attached drawing 29,30, core pipe valve described in embodiment is used for emergency cut-off；Two axis of 100 kernel of interlayer It is spherical surface to end face；" there are four radial recirculation holes 103 for input section 1 ' and deferent segment 1；The sealing surface of annular spool 101 is single To slope surface and sleeve II 2, " ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' and sleeve I 2 ' and deferent segment 1 " and sleeve II 2 " engaging portion is respectively provided with bellows seal 300；1 ' outer diameter of input section is less than deferent segment 1 " outer diameter, therefore, inner cavity 200 Two axial end faces form pressure difference；Compressed spring 4 and a limit are set between 1 ' end of input section and I 2 ' end of sleeve Rope 5.

It is open state, the pressure medium of pipe network is normal, between two axial end faces of inner cavity 200 shown in attached drawing 29 The elastic force of thrust and compressed spring 4 that pressure medium difference is formed keeps equilibrium state, input section 1 ' and deferent segment 1 " recirculation hole 103 penetrate through with inner cavity 200, flow of media；Rope 5 is elastic force tensioned by compressed spring 4.

It is Abnormal Shutdown state, at this point, the pressure medium exception superelevation of pipe network, two axis of inner cavity 200 shown in attached drawing 30 The thrust formed to the pressure medium difference between end face oppresses compressed spring 4, and valve body 2 is mobile to 1 ' direction of input section, sleeve II 2 " ring-shaped valve seats 201 with annular spool 101 of throat are closely affixed, and the medium of hyperpressure is cut off；Meanwhile the relaxation of rope 5； After pressure medium restores normal, it can be reopened under the elastic force effect of compressed spring 4.

Embodiment 15

Referring to attached drawing 31,32, core pipe valve described in the present embodiment is used for emergency cut-off；The valve core tube 1 hangs down for fixing piece Directly in the ground sleeve I 2 through valve body 2 coaxial from bottom to up ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "； Two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；101 sealing surface of annular spool is unidirectional slope surface and sleeve II 2 " ring-shaped valve seats 201 of throat constitutes sealing pair；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；Input Section 1 ' and the engaging portion of sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " are respectively provided with sealing ring 302；In sleeve I 2 ' corresponding defeated Enter 1 ' end of section prevents ring-shaped valve seats 201 and 101 hardness of annular spool from colliding compressed spring 4 when axially setting valve body 2 falls； 1 ' outer diameter of input section is less than deferent segment 1, and " outer diameter, therefore, two axial end faces of inner cavity 200 form pressure difference；" the end of deferent segment 1 " safety belt 705 is arranged in portion and sleeve II 2 between end；Sleeve II 2 " has the liner of tubular.

It is open state, pipe network pressure medium is normal, Jie between two axial end faces of inner cavity 200 shown in attached drawing 31 The thrust that matter pressure difference is formed adds the resultant force from gravity of valve body 2 to push valve body 2 is axial to move down, still, by safety belt 705 Limitation, keep valve in the open state, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 perforation, flow of media； At this point, compressed spring 4 is with I 2 ' end face of sleeve, there are also spacing.

It is Abnormal Shutdown state, at this point, the pressure medium exception superelevation of pipe network, two axis of inner cavity 200 shown in attached drawing 32 The superelevation thrust formed to the pressure medium difference between end face makes safety belt 705 break, and is allowed to axial from gravity due to valve body 2 It falls, at this point, compressed spring 4 is contacted with I 2 ' end face of sleeve, " ring-shaped valve seats 201 and annular spool 101 of throat are tight for sleeve II 2 Close to be affixed, superelevation medium is by emergency cut-off.

Embodiment 16

Referring to attached drawing 33,34, core pipe valve described in the present embodiment is used for safety, pressure release；The valve core tube 1 is fixing piece Perpendicular to ground it is coaxial from bottom to up through the sleeve I 2 of valve body 2 ', the sleeve II of 2 inner cavity 200 of valve body and valve body 2 2″；Two axial end faces of 100 kernel of interlayer are spherical surfaces；It surround and is single with 101 sealing surface of annular spool of 100 one of interlayer To slope surface and sleeve II 2, " ring-shaped valve seats 201 of throat constitutes sealing pair；" there are four radial flows for input section 1 ' and deferent segment 1 Through-hole 103；The outer diameter of input section 1 ' is greater than deferent segment 1 " outer diameter, therefore, two axial end faces of inner cavity 200 form pressure Difference；Input section 1 ' and sleeve I 2 ' engaging portion setting sealing ring 302 and lip ring 303, I 2 ' end face of sleeve have annular three Angle lip, lip ring 303 are embedded in the land 102 of 1 ' end of input section；2 shoulder of valve body is set with counterweight 708；Deferent segment 1 " The extended segment top of upper end has its neck of end cap there are four radial tap 105, and total circulation area of tap 105 is all larger than defeated Enter total circulation area and deferent segment 1 " total circulation area of four recirculation holes 103 of four recirculation holes 103 of section 1 '.

It shown in attached drawing 33, is in off state, under normal circumstances, pipe network pressure medium is normal, two axial ends of inner cavity 200 The thrust that the pressure medium difference that face is subject to is formed adds 708 gravity of the counterweight, " annular of throat of sleeve II 2 from gravity less than valve body 2 Valve seat 201 is closely affixed with annular spool 101, meanwhile, the annular triangle lip of I 2 ' end face of sleeve is embedded in lip ring 303.

It is open state, at this point, pipe network pressure medium superelevation is in normal pressure, two axis of inner cavity 200 shown in attached drawing 34 The thrust superelevation that the pressure medium difference being subject to end face is formed adds 708 gravity of counterweight from gravity in valve body 2, pushes valve body 2 axial Move up, sleeve II 2 that " ring-shaped valve seats 201 of throat leaves annular spool 101 therewith, and lip ring is left in I 2 ' end face of sleeve 303, then, input section 1 ' and deferent segment 1 " recirculation hole 103 penetrated through with inner cavity 200, superpressure medium is through tap 105 to sky Middle release.

Need to adjust adjustable counterweight 708 when pressure value.

Embodiment 17

Referring to attached drawing 35,36, core pipe valve described in the present embodiment, for opening and closing；Two axial directions of 100 kernel of interlayer End face is ligulate triangle slope surface 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；Annular spool 101 Sealing surface is two-way slope surface and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' and sleeve I 2 ' and output The engaging portion of section 1 " with sleeve II 2 " is respectively provided with bellows seal 300；1 ' outer diameter of input section is slightly larger than 1 " outer diameter of deferent segment；Sleeve A fastening screw 503 ' is arranged in I 2 ' end of pipe.

It is open state, pushing valve body 2 to deferent segment 1, " direction is mobile, " the annular of throat of sleeve II 2 shown in attached drawing 35 Valve seat 201 leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, flow of media, so Afterwards, fixed fastening screw 503 '.

It shown in attached drawing 36, is in off state, unclamps fastening screw 503 ', push valve body 2 mobile to 1 ' direction of input section, sleeve The ring-shaped valve seats 201 of I 2 ' throat of pipe is closely affixed with annular spool 101, then, fixed fastening screw 503 '.

Embodiment 18

Referring to attached drawing 37,38, core pipe valve described in the present embodiment, for opening and closing, adjusting；The two of 100 kernel of interlayer A axial end face is ligulate triangle slope surface 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；Around interlayer 100 annular spool 101 is two-way telescopic ripple annular solid, the sealing surface of ripple annular solid axial ends ring packing head For unidirectional slope surface and sleeve I 2 ' and sleeve II 2, " ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' and sleeve I 2 ' Bellows seal 300 and sealing ring 302, a communicating pipe II 602 are respectively provided with the engaging portion of deferent segment 1 " with sleeve II 2 " Penetrating through sleeve I 2 ' and sleeve II 2, " communicating pipe II 602 can also be arranged and input by 300 inner cavity of bellows seal at both ends 1 ' end of section and deferent segment 1 are " between end；" there are bolt, input section 1 ' and sleeve I in end for 1 ' end of input section and deferent segment 1 Bolt is lockked using rope 5 between deferent segment 1 " and sleeve II 2 " between 2 ', determines opening and closing and opens wide.

It is open state shown in attached drawing 37, is positioned with the rope 5 on both sides, sleeve I 2 ' and " annular plate valve of throat of sleeve II 2 Seat 201 has at a distance from equal with annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and the perforation of inner cavity 200, Flow of media；At this point, valve body 2 is in dead-center position, no matter advances or fall back, so that valve body 2 is axially moved adjusting or It closes.

Shown in attached drawing 38, be in off state, unclamp input section 1 ' and sleeve I 2 ' between rope 5, tighten deferent segment 1 " and Sleeve II 2 " between rope 5, ring-shaped valve seats 201 and the annular spool 101 of I 2 ' throat of sleeve be closely affixed.

Embodiment 19

Referring to attached drawing 39,40, core pipe valve described in the present embodiment is open type, for speed opening and closing, impact opening and closing；It is described Two axial end faces of 100 kernel of interlayer are spherical surfaces；" there are four radial recirculation holes 103 for input section 1 ' and deferent segment 1；It is compound Sealing: one, around the annular spool 101 of interlayer 100 and sleeve II 2 " ring-shaped valve seats 201 of throat constitutes sealing pair, and two, surround The sealing ring II 302 of interlayer 100 ' " annular inner wall, which matches, constitutes secondary sealing pair with sleeve II 2；1 ' outer diameter of input section is greater than defeated " outer diameter, therefore, the difference of two axial end face areas of inner cavity 200 form pressure difference to section 1 out；Input section 1 ' and sleeve I 2 ' and defeated The engaging portion of section 1 " with sleeve II 2 " is respectively provided with bellows seal 300 out；" end face is resistance discs 203 ' to sleeve II 2.

It shown in attached drawing 39, is in off state, at this time in high speed traveling, resistance discs 203 ' are by surrounding medium impact force Compacting, impact force are greater than the thrust that the pressure difference of two axial end faces of inner cavity 200 is formed, push valve body 2 to input section 1 ' Direction is mobile, sleeve II 2 " ring-shaped valve seats 201 of throat is closely affixed with annular spool 101, meanwhile, II 2 " annular inner wall of sleeve With sealing ring II 302 ' be closely affixed.

It is open state, at this time in deceleration or stopped process, resistance discs 203 ' lose surrounding medium shown in attached drawing 40 Impact force, the thrust that the pressure differences of two axial end faces of inner cavity 200 is formed pushes the axial return of valve body 2, II 2 " larynx of sleeve The ring-shaped valve seats 201 in portion leaves annular spool 101, meanwhile, sleeve II 2 " annular inner wall also leave sealing ring II 302 ', input section 1 ' and deferent segment 1 " recirculation hole 103 with inner cavity 200 penetrate through, flow of media.

Embodiment 20

Referring to attached drawing 41,42, core pipe valve described in the present embodiment is closed type, for speed opening and closing, impact opening and closing；It is described Two axial end faces of 100 kernel of interlayer are spherical surfaces；" there are six radial recirculation holes 103 for input section 1 ' and deferent segment 1；Annular The sealing surface of spool 101 is the composition sealing pair of ring-shaped valve seats 201 of two-way slope surface and I 2 ' throat of sleeve；Input section 1 ' and sleeve I Bellows seal 300 is arranged in 2 ' engaging portion, and Elastomer Bellows Seal 3 is arranged in deferent segment 1 " with sleeve II 2 " engaging portion； I 2 ' end face of sleeve is resistance discs 203 '.

It shown in attached drawing 41, is in off state, at this point, resistance discs 203 ' are not by the impact force of surrounding medium, elastic wave The resilient force valve body 2 of line seals 3 is mobile to 1 ' direction of input section, " the ring-shaped valve seats 201 and ring of throat of sleeve II 2 Shape spool 101 is closely affixed.

It is open state shown in attached drawing 42, at this point, compacting of the resistance discs 203 ' by surrounding medium impact force, impact Power is greater than the elastic force of Elastomer Bellows Seal 3, and pushing valve body 2 to deferent segment 1, " direction is mobile, " the annular of throat of sleeve II 2 Valve seat 201 leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 with inner cavity 200 penetrate through, flow of media.

Embodiment 21

Referring to attached drawing 43,44, core pipe valve described in the present embodiment, for opening and closing, adjusting；The two of 100 kernel of interlayer A axial end face is ligulate triangle slope surface 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；It surround and embedding The sealing surface for entering the annular spool 101 of interlayer 100 is arc slope and sleeve I 2 ' and " ring-shaped valve seats 201 of throat of sleeve II 2 Constitute sealing pair；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows seal 300；Sleeve I 2 ' and sleeve II 2 " have the liner of tubular；Sleeve I 2 ' and sleeve II 2 " annular inner wall and valve core tube 1 ring Have ball 707 between shape outer wall, be attached respectively to sleeve I 2 ' and sleeve II 2 " annular inner wall, make valve body 2 axial movement more Flexibly；In 1 ' end of input section, one valve rod base 504 ' with fastening screw 503 ' is set, valve rod 504 passes through valve rod base 504 ', Its tail portion and sleeve I 2 ' connect, there is handle 501 ' on 504 head of valve rod.

It is open state shown in attached drawing 43, unclamps fastening screw 503 ', driving handle 501 ', valve rod 504 pushes valve therewith Body 2 leaves annular spool 101, input section 1 ' and output to deferent segment 1 " direction is mobile, the sleeve II 2 " ring-shaped valve seats 201 of throat Section 1 " recirculation hole 103 and inner cavity 200 penetrate through, flow of media；Then, fastening screw 503 ' is tightened.

It shown in attached drawing 44, is in off state, unclamps fastening screw 503 ', pull handle 501 ', valve rod 504 drives valve therewith Body 2 is mobile to 1 ' direction of input section, sleeve II 2, and " ring-shaped valve seats 201 of throat is closely affixed with annular spool 101, cuts off medium Stream；Then, fastening screw 503 ' is tightened；Can continue to driving handle 501 ', valve rod 504 therewith band moving valve 2 to deferent segment 1 " direction is mobile until closing valve, realizes two-way opening and closing；Valve body 2 can also be pushed backwards to ideal aperture axially forward.

Embodiment 22

Referring to attached drawing 45,46, core pipe valve described in the present embodiment, for opening and closing；The valve core tube 1 is that fixing piece is coaxial From bottom to up through the sleeve I 2 of valve body 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；The two of 100 kernel of interlayer A axial end face is ligulate triangle slope surface 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；It surround and embedding The sealing surface for entering the annular spool 101 of interlayer 100 is two-way slope surface and sleeve I 2 ' and " ring-shaped valve seats 201 of throat of sleeve II 2 Constitute sealing pair；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows seal 300；Input section 1 ' and sleeve I 2 ' 300 inner cavity of bellows seal of engaging portion connected by the radial direction on 1 ' ring wall of input section Through-hole 105 " and the preceding pressure of valve penetrates through, 300 inner cavity of bellows seal of the engaging portion of deferent segment 1 " with sleeve II 2 " passes through defeated Section 1 " the radial communication hole 105 on ring wall " and the rear pressure of valve penetrate through out；Sleeve II 2 " has the liner of tubular；2 external connection of valve body Driving element be the rope 5 being affiliated to upwards.

Shown in attached drawing 45, be in off state, payout 5, due to valve body 2 self weight and axial return, II 2 " larynx of sleeve The ring-shaped valve seats 201 in portion is closely affixed with annular spool 101.

It is open state shown in attached drawing 46, lifts rope 5 and be affiliated to later, valve body 2 is axial is moved up, and sleeve II 2 be " throat Ring-shaped valve seats 201 leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, medium flow field It is logical；It continues up and lifts rope 5, also may be implemented to adjust and close, when closing, the ring-shaped valve seats 201 and ring of I 2 ' throat of sleeve Shape spool 101 is closely affixed.

Embodiment 23

Referring to attached drawing 47, core pipe valve described in the present embodiment is depressured for second level grating type；100 kernel of interlayer Two axial end faces are spherical surfaces；" there are four the flat grating type radial direction recirculation holes of well-balanced arrangement for input section 1 ' and deferent segment 1 103, the recirculation hole 103 of the input section 1 ' gross area that circulates is greater than deferent segment 1 " recirculation hole 103 circulate the gross area；Annular spool 101 sealing surface is that " ring-shaped valve seats 201 of throat constitutes sealing pair for arc slope and sleeve I 2 ' and sleeve II 2；Input section 1 ' is respectively provided with bellows seal 300 with the engaging portion of sleeve I 2 ' and deferent segment 1 " and sleeve II 2 "；It is set in 1 ' end of input section A valve rod base 504 ' is set, valve rod 504 passes through valve rod base 504 ', and tail portion is connect with I 2 ' spiral of sleeve.

Shown in attached drawing 47, it is open state, adjusts valve rod 504, make valve body 2 to deferent segment 1 " direction is mobile, sleeve II 2 " The ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, Flow of media, meanwhile, play the role of decrease temperature and pressure；When needing to continue decrease temperature and pressure, valve rod 504 is adjusted again, continues valve body 2 To deferent segment 1, " direction is mobile, two recirculation holes 103 of sleeve I 2 ' covering input section 1 '.

Embodiment 24

Referring to attached drawing 48, core pipe valve described in the present embodiment, for being sustained；Two axial ends of 100 kernel of interlayer Face is that it is positioned at input section 1 ' is plane, be located at deferent segment 1 " be spherical surface；101 sealing surface of annular spool be unidirectional slope surface with " ring-shaped valve seats 201 of throat constitutes sealing pair to sleeve II 2；The knot of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " Conjunction portion is respectively provided with bellows seal 300；There are two the radial flows of symmetrical two wing flute profiles of the middle part with pin hole for input section 1 ' " there are two big radial recirculation holes 103 for through-hole 103, deferent segment 1；1 ' outer diameter of input section is greater than 1 " outer diameter of deferent segment；In deferent segment 1 " valve rod base 504 ' with fastening screw 503 ' is arranged in end, and valve rod 504 passes through valve rod base 504 ', tail portion and sleeve II 2 " spiral connects, and valve rod 504 has an annular groove, and 503 ' bottom of fastening screw is embedded in the annular groove of valve rod 504.

Shown in attached drawing 48, it is open state, unscrews fastening screw 503 ', adjust valve rod 504, valve body 2 is " square to deferent segment 1 To movement, the recirculation hole 103 of sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " It is penetrated through with inner cavity 200, antihypertensive effect is played in medium sustained release circulation；Then, tightening 503 ' locking valve rod 504 of fastening screw cannot Arbitrarily rotation.

Embodiment 25

Referring to attached drawing 49, core pipe valve described in the present embodiment, for opening and closing；The valve core tube 1 be fixing piece it is coaxial from Under through the sleeve I 2 of valve body 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；Two of 100 kernel of interlayer Axial end face is ligulate triangle slope surface 100 '；" there are two the radial recirculation holes 103 of well-balanced arrangement for input section 1 ' and deferent segment 1； The sealing surface of annular spool 101 is unidirectional slope surface and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' with Sleeve I 2 ' engaging portion bellows seal 300 is set, sealing ring 302 is arranged in the engaging portion of deferent segment 1 " with sleeve II 2 "；Valve There is the foot pedal 502 of circumferentially extending outside body 2；Compressed spring 4 is set between deferent segment 1 " and sleeve II 2 " end.

It is open state shown in attached drawing 49, exerts a force downwards to foot pedal 502, valve body 2 is axial is moved down, II 2 " throat of sleeve Ring-shaped valve seats 201 leave annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, medium Circulation.

Embodiment 26

Referring to attached drawing 50, core pipe valve described in the present embodiment, for opening and closing；Two axial ends of 100 kernel of interlayer Face is arc lower guide surface；The longitudinal profile of inner cavity 200, top are horizontal lines, and lower part is circular arc, are similar to fish maw；Input section 1 ' and " a radial recirculation hole 103 is arranged deferent segment 1 at lower part；The sealing surface of annular spool 101 is two-way slope surface and sleeve I 2 ' and sleeve " ring-shaped valve seats 201 of throat constitutes sealing pair to pipe II 2；The knot of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " Conjunction portion is respectively provided with bellows seal 300；Foot pedal 502 is set on the outer top of valve body 2, two rollings are set in the outer lower part of valve body 2 The extension spring 4 ' for making valve body 2 do axial return is arranged between sleeve II 2 " external and deferent segment 1 " end in wheel 800.

It is open state shown in attached drawing 50, is because imposing the pulling force opposite direction with extension spring 4 ' to foot pedal 502 Power, valve body 2 is mobile to 1 ' direction of input section, and the ring-shaped valve seats 201 of I 2 ' throat of sleeve leaves annular spool 101, input section 1 ' and Deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, flow of media；At this point, valve body 2 is in the length-controllable of valve core tube 1 Dead-center position moves axially foot pedal 502, moves on or fall back, so that valve body 2 is axially moved to adjust or close valve Door.

Embodiment 27

Referring to attached drawing 51,52, core pipe valve described in the present embodiment, for opening and closing；The valve core tube 1 is that fixing piece is coaxial From top to bottom through the sleeve I 2 of valve body 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；The two of 100 kernel of interlayer A axial end face is plane；Input section 1 ' and deferent segment 1 " have eight radial recirculation holes 103；The sealing surface of annular spool 101 Two-way slope surface and sleeve I 2 ' and sleeve II 2 " ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' and sleeve I 2 ' Sealing ring 302 is respectively provided with the engaging portion of deferent segment 1 " with sleeve II 2 "；There is the handle of a circumferentially extending outside valve body 2 501′。

It is open state shown in attached drawing 51, forcing in handle 501 ' upwards moves up valve body 2 axially, I 2 ' throat of sleeve Ring-shaped valve seats 201 leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, medium flow field It is logical.

Shown in attached drawing 52, be in off state, one, downwards force in handle 501 ' make valve body 2 axially move down, I 2 ' larynx of sleeve The ring-shaped valve seats 201 in portion is closely affixed with annular spool 101；Two, forcing in handle 501 ' upwards moves up valve body 2 axially, tucks inside the sleeve " ring-shaped valve seats 201 of throat is closely affixed pipe II 2 with annular spool 101.

Embodiment 28

Referring to attached drawing 53,54, core pipe valve described in the present embodiment is depressured for second level pin hole；100 kernel of interlayer Two axial end faces are spherical surfaces；The sealing surface of annular spool 101 is arc slope and sleeve II 2 " 201 structure of ring-shaped valve seats of throat At sealing pair；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with sealing ring 302；Input section 1 ' " has the pin radial direction recirculation hole 103 an of mutual dislocation, 103 flow area of recirculation hole of input section 1 ' with deferent segment 1 Greater than deferent segment 1 " 103 flow area of recirculation hole；One valve rod base 504 ' is set in 1 ' end of input section, valve rod 504 passes through Valve rod base 504 ', tail portion are connect with I 2 ' spiral of sleeve.

It shown in attached drawing 53, is in off state, adjusts valve rod 504, the axial return of the valve body 2, " annular plate valve of throat of sleeve II 2 Seat 201 is closely affixed with annular spool 101.

It is open state shown in attached drawing 54, adjusts valve rod 504, " direction is mobile, II 2 " larynx of sleeve to deferent segment 1 for valve body 2 The ring-shaped valve seats 201 in portion leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, be situated between The circulation of matter second level degression type, plays antihypertensive effect.

Embodiment 29

Referring to attached drawing 55,56, core pipe valve described in the present embodiment, for opening and closing；The valve core tube 1 is that fixing piece is coaxial From bottom to up through the sleeve I 2 of valve body 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；The two of 100 kernel of interlayer A axial end face is ligulate triangle slope surface 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；Annular spool 101 sealing surface is that " ring-shaped valve seats 201 of throat constitutes sealing pair for two-way slope surface and sleeve I 2 ' and sleeve II 2；Input section 1 ' is respectively provided with bellows seal 300 with the engaging portion of sleeve I 2 ' and deferent segment 1 " and sleeve II 2 "；2 external connection of valve body Driving element is rope 5 and handwheel 501；Compressed spring 4 is set between I 2 ' end of input section 1 ' and sleeve.

It is open state shown in attached drawing 55, rotation handwheel 501 pulls downwards rope 5, and valve body 2 is axial to be moved down, sleeve I 2 ' The ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, Flow of media.

It shown in attached drawing 56, is in off state, unclamps rope 5, under the elastic force effect of compressed spring 4, in 2 axial direction of valve body It moves, ring-shaped valve seats 201 and the annular spool 101 of I 2 ' throat of sleeve are closely affixed.

Embodiment 30

Referring to attached drawing 57,58, core pipe valve described in the present embodiment for pressure opening and closing, is adjusted, non-return；The interlayer 100 Two axial end faces of kernel are ligulate triangle slope surfaces 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1； The sealing surface of annular spool 101 is that " ring-shaped valve seats 201 of throat constitutes sealing for two-way slope surface and sleeve I 2 ' and sleeve II 2 It is secondary；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows seal 300；It is inputting Hydraulic cylinder 506 is arranged in 1 ' end of section, and by the perforation of the preceding pressure of communicating pipe 600 and valve, hydraulic stem directes reach adjacent 506 inner cavity of hydraulic cylinder I 2 ' top of sleeve；Input section 1 ' and sleeve I 2 ' between the setting elastic element opposite with 506 thrust of hydraulic cylinder be stretching Spring 4 '.

It is open state shown in attached drawing 57, at this point, pipe network pressure medium is normal, 506 inner cavity of hydraulic cylinder is full of Jie with pressure Matter pushes valve body 2 to deferent segment 1, and " " ring-shaped valve seats 201 of throat leaves annular spool 101, input for direction movement, sleeve II 2 Section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 perforation, flow of media；When pipe network pressure medium is greater than normal pressure, It is full of high-pressure medium in hydraulic cylinder 506, valve body 2 is pushed to continue to deferent segment 1 " direction is mobile, at that time, I 2 ' annular inner wall of sleeve 103 a part of recirculation hole that input section 1 ' will be covered, has the function that adjusting.

It shown in attached drawing 58, is in off state, at this point, pipe network pressure medium subnormal pressure or upstream lose pressure Source, under 4 ' pulling force effect of extension spring, valve body 2 is mobile to 1 ' direction of input section, sleeve II 2 " ring-shaped valve seats 201 of throat with Annular spool 101 is closely affixed, and realizes non-return, and medium is flow backwards in cutting downstream.

Embodiment 31

Referring to attached drawing 59,60, core pipe valve described in the present embodiment, for opening and closing；Two axial directions of 100 kernel of interlayer End face is ligulate triangle slope surface 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；Annular spool 101 Sealing surface is that " ring-shaped valve seats 201 of throat constitutes sealing pair for two-way slope surface and sleeve I 2 ' and sleeve II 2；Input section 1 ' and sleeve The engaging portion of pipe I 2 ' and deferent segment 1 " with sleeve II 2 " sets gradually sealing ring 302 and lip ring 303 except inner, tucks inside the sleeve " outer ring surface of end is threadedly coupled with a spiral fastener 206 respectively, and lip ring 303 is in spiral shell for pipe I 2 ' and sleeve II 2 It is promoted to 100 direction of interlayer during 206 precession of rotation fastener, increasingly holds the work that valve core tube 1 reaches tight seal tightly With preventing valve body 2 from moving axially easily and radial rotary；" the end in 1 ' end of input section and I 2 ' end of sleeve and deferent segment 1 " end is respectively provided with a snak link 401, and 1 both ends of valve core tube are respectively provided with one can be with the spring of adjacent sleeve with sleeve II 2 in portion The extension spring 4 ' that button 401 is affiliated to.

It shown in attached drawing 59, is in off state, pushes valve body 2 mobile to 1 ' direction of input section, the stretching of 1 ' end of input section Spring 4 ' and the snak link 401 of I 2 ' end of sleeve are affiliated to, sleeve II 2, and " ring-shaped valve seats 201 and annular spool 101 of throat are close It is affixed；The spiral fastener 206 at 2 both ends of valve body is screwed again.

It is open state shown in attached drawing 60, release extension spring 4 ' is affiliated to snak link 401, pushes valve body 2 to output " direction is moved to fully open position, sleeve I 2 ' and sleeve II 2, and " ring-shaped valve seats 201 of throat is in phase with annular spool 101 to section 1 Deng distance, at this point, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, flow of media；Then, by valve body The spiral fastener 206 at 2 both ends screws；When needed, valve body 2 can be axially pushed into any position.

Embodiment 32

Referring to attached drawing 61, core pipe valve described in the present embodiment, for opening and closing, discharging；Two axis of 100 kernel of interlayer It is ligulate triangle slope surface 100 ' to end face；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；Annular spool 101 Sealing surface be that the ring-shaped valve seats 201 of two-way slope surface and I 2 ' throat of sleeve constitutes sealing pair；Input section 1 ' and sleeve I 2 ' and defeated The engaging portion of section 1 " with sleeve II 2 " is respectively provided with sealing ring 302 out；Pressure is set between 1 ' end of input section and I 2 ' end of sleeve " end is set with a butt tube 6 to contracting spring 4, when needing Open valve, in deferent segment 1, and butt tube 6 can be the spiral of F.F. Or the connection with bayonet lock.

It is open state shown in attached drawing 61, butt tube 6 oppresses compressed spring 4 in progradation and moves valve body 2 axially Dynamic, the ring-shaped valve seats 201 of I 2 ' throat of sleeve leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 with it is interior Chamber 200 penetrates through, flow of media.

Embodiment 33

Referring to attached drawing 62, core pipe valve described in the present embodiment, material of main part uses armored concrete, can also use stone Material, can also be using refractory material etc., for opening and closing；Two axial end faces of 100 kernel of interlayer are ligulate triangle slopes Face 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；The sealing surface of annular spool 101 is two-way slope surface " ring-shaped valve seats 201 of throat constitutes sealing pair with sleeve I 2 ' and sleeve II 2；Input section 1 ' and sleeve I 2 ' and deferent segment 1 " With sleeve II 2 " engaging portion be respectively provided with sealing ring 302；Valve body 2 is made of armored concrete, and sleeve I 2 ' and sleeve II 2 " have The liner of tubular, the material of liner can be metal material, nylon material, resin material etc.；Idler wheel 800 is set below valve body 2, 800 quantity of idler wheel can be one, two or four；It can also be sliding groove below valve body 2；Input section 1 ' and deferent segment 1 " end is connect using pipe connection buckle 802 with pipe network, is sheet lip ring 303 therebetween.

Shown in attached drawing 62, be open state, push valve body 2 move axially to middle part, sleeve I 2 ' and sleeve II 2 " throat Ring-shaped valve seats 201 is away from annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, medium Circulation.

Embodiment 34

Referring to attached drawing 63,64, core pipe valve described in the present embodiment is open type, for opening and closing；100 kernel of interlayer Two axial end faces are ligulate triangle slope surfaces 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；Around simultaneously 101 sealing surface of annular spool for being embedded in interlayer 100 is two-way slope surface and sleeve I 2 ' and " ring-shaped valve seats 201 of throat of sleeve II 2 Constitute sealing pair；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows seal 300；Electromagnet 508 is arranged in 1 ' end of input section；Extension spring 4 ' is set between deferent segment 1 " end and sleeve II 2 " end；? After valve uses a period of time, installation position is can be interchanged in electromagnet 508 and extension spring 4 '.

It is open state, under the action of extension spring 4 ', to deferent segment 1, " direction is moved to valve body 2 shown in attached drawing 63 It opens, sleeve I 2 ' " ring-shaped valve seats 201 of throat is away from annular spool 101, input section 1 ' and 1 " of deferent segment with sleeve II 2 Recirculation hole 103 and inner cavity 200 penetrate through, flow of media.

It shown in attached drawing 64, is in off state, electromagnet 508 adsorbs I 2 ' end face of sleeve, the axial return of valve body 2, sleeve II 2 " The ring-shaped valve seats 201 of throat is closely affixed with annular spool 101.

Embodiment 35

Referring to attached drawing 65,66, core pipe valve described in the present embodiment, for opening and closing；The input section 1 ' and deferent segment 1 are " There are eight radial recirculation holes 103；Two axial end faces of 100 kernel of interlayer are planes；Composite seal pair: one, it surround and is embedded in The sealing surface of the flexible annular spool 101 of interlayer 100 is arc slope and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes sealing Pair, two, around interlayer 100 sealing ring II 302 ' with sleeve II 2 " annular inner wall match and constitute secondary sealing pair；Input section 1 ' is respectively provided with bellows seal 300 with the engaging portion of sleeve I 2 ' and deferent segment 1 " and sleeve II 2 "；Input section 1 ' and deferent segment 1 " end is respectively provided with electromagnet 508；It " is spiral docking, wherein interlayer 100 that valve core tube 1, which is two-section, input section 1 ' and deferent segment 1, Positioned at deferent segment 1 " docking end.

It is open state shown in attached drawing 65, deferent segment 1 " electromagnet 508 of end adsorbs sleeve II 2 " end face makes valve body 2 Moving axially to open state, sleeve II 2, " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrates through, flow of media, at this point, electromagnet 508 can instant cut-off.

It shown in attached drawing 66, is in off state, the electromagnet 508 of 1 ' end of input section adsorbs I 2 ' end face of sleeve, 2 axis of valve body To being moved to closed state, sleeve II 2 " ring-shaped valve seats 201 of throat is closely affixed with annular spool 101, meanwhile, sleeve II 2 " Annular inner wall and sealing ring II 302 ' be closely affixed；At this point, electromagnet 508 can instant cut-off.

The core pipe valve acquisition cost of bidirectional electromagnet is slightly higher, can save a large amount of electric energy and maintenance cost.

Embodiment 36

Referring to attached drawing 67,68, core pipe valve described in the present embodiment is closed type, for opening and closing；100 kernel of interlayer Two axial end faces are spherical surfaces；" there are four radial recirculation holes 103 for input section 1 ' and deferent segment 1；Composite seal pair: one, it surround 101 sealing surface of annular spool of interlayer 100 is that the ring-shaped valve seats 201 of arc slope and I 2 ' throat of sleeve constitutes sealing pair, two, Around interlayer 100 sealing ring II 302 ' with sleeve I 2 ' annular inner wall match and constitute secondary sealing pair；Input section 1 ' and sleeve Bellows seal 300 is arranged in I 2 ' engaging portion, and sealing ring 302 is arranged in deferent segment 1 " with sleeve II 2 " engaging portion；Input section 1 ' is held Electromagnet 508 is arranged in portion；Extension spring 4 ' is set between deferent segment 1 " end and sleeve II 2 ".

It shown in attached drawing 67, is in off state, the pulling force of extension spring 4 ' makes valve body 2 to deferent segment 1, and " direction is moved to pass Close, ring-shaped valve seats 201 and the annular spool 101 of I 2 ' throat of sleeve are closely affixed, meanwhile, sleeve I 2 ' annular inner wall and sealing Enclose II 302 ' closely it is affixed.

It is open state shown in attached drawing 68, electromagnet 508 adsorbs I 2 ' end face of sleeve, and valve body 2 is moved to 1 ' direction of input section Dynamic, the ring-shaped valve seats 201 of I 2 ' throat of sleeve leaves annular spool 101, sleeve I 2 ' annular inner wall also leave sealing ring II 302 ', input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, flow of media.

Embodiment 37

Referring to attached drawing 69,70, core pipe valve described in the present embodiment is open type, for opening and closing；The valve core tube 1 is to fix Part perpendicular to ground from top to bottom the coaxial sleeve I 2 through valve body 2 ', the sleeve II of 2 inner cavity 200 of valve body and valve body 2 2″；Two axial end faces of 100 kernel of interlayer are spherical surfaces；" there are four radial recirculation holes 103 for input section 1 ' and deferent segment 1；Ring Around and with the one of interlayer 100 101 sealing surface of the annular spool " composition of ring-shaped valve seats 201 of throat that is unidirectional slope surface and sleeve II 2 Sealing pair；Bellows seal 300 is arranged in input section 1 ' and I 2 ' engaging portion of sleeve, and deferent segment 1 " with sleeve II 2 " engaging portion is set Sealing ring 302 is set, " land 102 upper surface in end the is also provided with sealing ring 302 and sleeve II 2 " end face of deferent segment 1 is closed in valve When be closely affixed；Electromagnet 508 is arranged in 1 ' end of input section.

" 102 upper surface of end land that is open state shown in attached drawing 69, valve body 2 is allowed to sagging from gravity, deferent segment 1 Sealing ring 302 and sleeve II 2 " end face is affixed, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, medium Circulation.

It shown in attached drawing 70, is in off state, electromagnet 508 adsorbs I 2 ' end face of sleeve, moves up valve body 2 axially, sleeve II 2 " ring-shaped valve seats 201 with annular spool 101 of throat are closely affixed.

Embodiment 38

Referring to attached drawing 71,72, core pipe valve described in the present embodiment is open type, is sustained for second level；In the interlayer 100 Two axial end faces of core are planes；The four small radial recirculation holes 103 of well-balanced arrangement of input section 1 ', 1 " symmetry arrangement of deferent segment Two radial recirculation holes 103 with wing slot；It surround and is arc slope with 101 sealing surface of annular spool of 100 one of interlayer Sealing pair is constituted with the ring-shaped valve seats 201 of I 2 ' throat of sleeve；1 ' outer diameter of input section be less than deferent segment 1 " outer diameter, input section 1 ' with The engaging portion of sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows seal 300；" electromagnetism is arranged in end to deferent segment 1 Iron 508；Extension spring 4 ' and limiter 702 are set between 1 ' end of input section and I 2 ' end of sleeve.

It is open state, the pressure medium of 200 two axial end faces of pulling force and inner cavity of extension spring 4 ' shown in attached drawing 71 The thrust that difference is formed keeps valve body 2 mobile to 1 ' direction of input section, and the ring-shaped valve seats 201 of I 2 ' throat of sleeve leaves annular spool 101；Medium is depressurized by the recirculation hole 103 of input section 1 ', into inner cavity 200, then, " the stream with wing slot that passes through deferent segment 1 Through-hole 103 realizes sustained release circulation.

Shown in attached drawing 72, it is in off state, electromagnet 508 adsorbs sleeve II 2 that " end face makes the axial return of valve body 2, sleeve I The ring-shaped valve seats 201 of 2 ' throats is closely affixed with annular spool 101.

Embodiment 39

Referring to attached drawing 73,74, core pipe valve described in the present embodiment is closed type, is sustained for second level；In the interlayer 100 Two axial end faces of core are planes；The four small radial recirculation holes 103 of well-balanced arrangement of input section 1 ', 1 " symmetry arrangement of deferent segment Two radial recirculation holes 103 with wing slot；It surround and is arc slope and sleeve I with the annular spool 101 of 100 one of interlayer The ring-shaped valve seats 201 of 2 ' throats constitutes sealing pair；1 ' outer diameter of input section is less than deferent segment 1 " outer diameter, input section 1 ' and sleeve I 2 ' Bellows seal 300 is respectively provided with the engaging portion of deferent segment 1 " with sleeve II 2 "；Electromagnet 508 is arranged in 1 ' end of input section； Extension spring 4 ' is set between deferent segment 1 " end and sleeve II 2 " end.

Shown in attached drawing 73, " direction movement, sleeve I are in off state, the pulling force of extension spring 4 ' makes valve body 2 to deferent segment 1 The ring-shaped valve seats 201 of 2 ' throats is closely affixed with annular spool 101.

It is open state shown in attached drawing 74, electromagnet 508 adsorbs I 2 ' end face of sleeve, makes valve body 2 to 1 ' direction of input section Mobile, the ring-shaped valve seats 201 of I 2 ' throat of sleeve leaves annular spool 101, and medium is depressurized by the recirculation hole 103 of input section 1 ', Into inner cavity 200, then, passing through deferent segment 1, " recirculation hole 103 with wing slot realizes sustained release circulation.

Example IV ten

Referring to attached drawing 75,76, core pipe valve described in the present embodiment is open type, is used for second depressurized；In the interlayer 100 Two axial end faces of core are planes；The six small radial recirculation holes 103 of well-balanced arrangement of input section 1 ', " the well-balanced arrangement of deferent segment 1 Six smaller radial recirculation holes 103, radial recirculation hole 103 and the deferent segment 1 of input section 1 ' " radial recirculation hole 103 be staggered Well-balanced arrangement；It surround and annular spool 101 sealing surface integrated with interlayer 100 is the annular of two-way slope surface Yu I 2 ' throat of sleeve Valve seat 201 constitutes sealing pair；It is close that the engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows Sealing 300；The electromagnet 508 containing plug 508 ' is arranged in 1 ' end of input section, and 508 ' one end of plug connects I 2 ' end of sleeve； Compressed spring 4 is set between deferent segment 1 " end and sleeve II 2 ".

It is open state shown in attached drawing 75, since the elastic force of compressed spring 4 keeps valve body 2 mobile to 1 ' direction of input section, sleeve The ring-shaped valve seats 201 of I 2 ' throat of pipe leaves annular spool 101；Medium is depressurized by the small recirculation hole 103 of input section 1 ', is entered Then inner cavity 200 passes through deferent segment 1 " smaller recirculation hole 103 depressurizes again.

It shown in attached drawing 76, is in off state, the magnetic field force absorption plug 508 ' of electromagnet 508 pushes valve body 2 to deferent segment 1 " direction is mobile, and ring-shaped valve seats 201 and the annular spool 101 of I 2 ' throat of sleeve are closely affixed.

Example IV 11

Referring to attached drawing 77,78, core pipe valve described in the present embodiment is closed type, for depressurizing；100 kernel of interlayer Two axial end faces are planes；" the well-balanced arrangement two of the four small radial recirculation holes 103 of well-balanced arrangement of input section 1 ', deferent segment 1 Small radial recirculation hole 103；It surround and is unidirectional slope surface and I 2 ' larynx of sleeve with 101 sealing surface of annular spool of 100 one of interlayer The ring-shaped valve seats 201 in portion constitutes sealing pair；Input section 1 ' and the engaging portion of sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " are respectively provided with Bellows seal 300；The electromagnet 508 containing plug 508 ' is arranged in 1 ' end of input section, and 508 ' one end of plug connects sleeve I 2 ' ends；Extension spring 4 ' is set between deferent segment 1 " end and sleeve II 2 " end.

Shown in attached drawing 77, it is in off state, since the pulling force of extension spring 4 ' makes valve body 2 to deferent segment 1 " direction is mobile, The ring-shaped valve seats 201 of I 2 ' throat of sleeve is closely affixed with annular spool 101.

It is open state shown in attached drawing 78, the magnetic field force absorption plug 508 ' of electromagnet 508 pulls valve body 2 to input section 1 ' direction is mobile, and the ring-shaped valve seats 201 of I 2 ' throat of sleeve leaves annular spool 101, and medium passes through the four small streams of input section 1 ' Through-hole 103 depressurizes, and into inner cavity 200, then, passing through deferent segment 1, " two small recirculation holes 103 depressurize again.

Example IV 12

Referring to attached drawing 79,80, core pipe valve described in the present embodiment is closed type, for opening and closing；100 kernel of interlayer Two axial end faces are spherical surfaces；Input section 1 ' and deferent segment 1 " the radial recirculation hole 103 of well-balanced arrangement six respectively；It surround and is embedded in 101 sealing surface of annular spool of interlayer 100 is two-way slope surface and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes sealing pair；It is defeated The engaging portion for entering section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with sealing ring 302；" the end setting electricity of deferent segment 1 Magnet 508, sleeve II 2 " there are one and the matched iron block 509 of electromagnet 508 in end face "；1 ' end of input section and I 2 ' end of sleeve Between be arranged extension spring 4 '；" top has an arch extension section to cover electromagnet 508 to sleeve II 2.

Shown in attached drawing 79, it is in off state, since the pulling force of extension spring 4 ' keeps valve body 2 mobile to 1 ' direction of input section, " ring-shaped valve seats 201 of throat is closely affixed sleeve II 2 with annular spool 101.

It is open state shown in attached drawing 80, the magnetic field force of electromagnet 508 adsorbs sleeve II 2 " iron block 509 of end face ", makes Valve body 2 is to deferent segment 1 " direction is mobile, sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and defeated Section 1 out " recirculation hole 103 and inner cavity 200 penetrate through, flow of media.

Example IV 13

Referring to attached drawing 81,82, core pipe valve described in the present embodiment is open type, for depressurizing and opening and closing；The interlayer 100 Two axial end faces of kernel are spherical surfaces；Input section 1 ' has a small radial recirculation hole 103, deferent segment 1 " have one it is smaller Radial recirculation hole 103, they are staggered setting；Surround and with 101 sealing surface of annular spool of the one of interlayer 100 be unidirectional slope surface with " ring-shaped valve seats 201 of throat constitutes sealing pair to sleeve II 2；1 ' outer diameter of input section is greater than deferent segment 1 " outer diameter, therefore, inner cavity 200 Two axial end faces formed pressure difference；Input section 1 ' and sleeve I 2 ' engaging portion bellows seal 300, deferent segment are set Sealing ring 302, deferent segment 1 " end also sets up lip ring 303, sleeve II 2 " end is arranged in the engaging portion of 1 " with sleeve II 2 " There is a ring triangle lip in face, and when valve opening, lip is inserted into lip ring 303；Electromagnet is arranged in 1 ' end of input section 508。

It is open state shown in attached drawing 81, the thrust that the pressure medium difference of two axial end faces of inner cavity 200 is formed pushes Valve body 2 is to deferent segment 1 " direction is mobile, sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and defeated Section 1 out " recirculation hole 103 and inner cavity 200 penetrate through, medium decompression circulation；At this point, lip ring 303 and II 2 " end face of sleeve Lip be closely affixed.

It shown in attached drawing 82, is in off state, the magnetic field force of electromagnet 508 adsorbs I 2 ' end face of sleeve, makes valve body 2 to input 1 ' direction of section is mobile, and " ring-shaped valve seats 201 of throat is closely affixed sleeve II 2 with annular spool 101；" the lip of end face of sleeve II 2 Mouth is disengaged with lip ring 303.

Example IV 14

Referring to attached drawing 83,84,85,86, core pipe valve described in the present embodiment is closed type, for opening and closing, adjusting, depressurize, Non-return；Two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；Input section 1 ' and deferent segment 1 " have two A radial direction recirculation hole 103；101 sealing surface of annular spool is two-way slope surface and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes close Envelope is secondary；1 ' outer diameter of input section is greater than deferent segment 1 " outer diameter, therefore, it is poor that two axial end faces of inner cavity 200 form pressure medium； The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows seal 300；Input section 1 ' is held Electromagnet 508 is arranged in portion；Compressed spring 4 is set between deferent segment 1 " end and sleeve II 2 " end.

It is open state shown in attached drawing 83, the thrust that the pressure medium difference of two axial end faces of inner cavity 200 is formed pushes Valve body 2 is to deferent segment 1 " direction is mobile, meanwhile, it keeps balancing with the elastic force of compressed spring 4, " the ring-shaped valve seats of throat of sleeve II 2 201 leave annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, flow of media.

It is micro- open state shown in attached drawing 84, at that time, pipe network pressure medium superelevation, two axial end faces of inner cavity 200 The thrust that pressure medium difference is formed is higher than the elastic force of compressed spring 4, continues to press on valve body 2 to deferent segment 1, and " direction is mobile, sleeve I 2 ' annular inner wall has covered the major part of 1 ' recirculation hole 103 of input section, and medium Finite Circulation achievees the purpose that adjust decompression.

Shown in attached drawing 85, be micro- open state, at that time, pipe network pressure medium is lower, sleeve II 2 " annular inner wall cover Deferent segment 1 " major part of recirculation hole 103, medium Finite Circulation.

It shown in attached drawing 86, is in off state, one, work of electromagnet absorption I 2 ' end face of sleeve, " the annular of throat of sleeve II 2 Valve seat 201 is closely affixed with annular spool 101；Two, pipe network loses pressure source, and the elastic force of compressed spring 4 pushes valve body 2 to input 1 ' direction of section is mobile, sleeve II 2, and " ring-shaped valve seats 201 of throat is closely affixed with annular spool 101, and medium is flow backwards in cutting, is realized Non-return.

Example IV 15

Referring to attached drawing 87,88,89, core pipe valve described in embodiment, for opening and closing and non-return；The valve core tube 1 is to fix Part perpendicular to ground it is coaxial from bottom to up through the sleeve I 2 of valve body 2 ', the sleeve II of 2 inner cavity 200 of valve body and valve body 2 2″；Two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；" there are two well-balanced for input section 1 ' and deferent segment 1 The radial recirculation hole 103 of arrangement；101 sealing surface of annular spool is unidirectional slope surface and sleeve II 2 " 201 structure of ring-shaped valve seats of throat At sealing pair；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows seal 300； Valve body 2, which is that its inner cavity 200 of bell-jar structure is axial, only has upper surface, and lower end surface area is zero, therefore, inner cavity 200 axial two The pressure medium that the difference of corresponding inner face area is formed is poor；Deferent segment 1 " electromagnet 508 is arranged in the connecting tube outside portion of docking, 508 ' the lower end of plug of electromagnet 508 is fixedly connected on II 2 " outside portion of sleeve.

It is open state shown in attached drawing 87, i.e., pressure medium is greater than valve body 2 certainly to the force in 200 upper axial end face of inner cavity Gravity, that is to say, that valve body 2 just can be pushed axially to move up from the operating pressure of gravity greater than valve body 2 as long as pipe network is generated, sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 therewith " recirculation hole 103 with it is interior Chamber 200 penetrates through, and medium circulates upwards.

It shown in attached drawing 88, is in off state, pressure medium is less than oneself of valve body 2 to the force in 200 upper axial end face of inner cavity Then valve body 2 axially moves down gravity, and also return is closely affixed the ring-shaped valve seats 201 of I 2 ' throat of sleeve with annular spool 101 therewith, Medium is flow backwards in cutting.

It is open state shown in attached drawing 89, its adsorption capacity of the work of electromagnet 508 moves upwards plug 508 ', drives valve Body 2 is axial to be moved up, and at that time, " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and output to sleeve II 2 therewith Section 1 " recirculation hole 103 penetrated through with inner cavity 200, medium circulates downwards；Conversely, electromagnet 508 stops working, then valve body 2 is axial Move down, sleeve II 2 that " also return is closely affixed the ring-shaped valve seats 201 of throat with annular spool 101 therewith.

Example IV 16

Referring to attached drawing 90,91, core pipe valve described in the present embodiment is used for non-return, safety；The two of 100 kernel of interlayer A axial end face is ligulate triangle slope surface 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；It surround and embedding 101 sealing surface of annular spool for entering interlayer 100 is that " ring-shaped valve seats 201 of throat is equal for two-way slope surface and sleeve I 2 ' and sleeve II 2 Constitute sealing pair；Input section 1 ' and sleeve I 2 ' engaging portion bellows pressure chamber 306 is set, 306 inner cavity of bellows pressure chamber is logical Cross the preceding pressure perforation of communicating pipe 600 and valve；Bellows seal 300 is arranged in deferent segment 1 " with sleeve II 2 " engaging portion；Deferent segment Compressed spring 4 is set between 1 " end and sleeve II 2 " end.

For non-return:

It is open state shown in attached drawing 90, pipe network pressure medium is normal, and bellows pressure chamber 306 is full of pressure medium shape At thrust oppress compressed spring 4, making valve body 2 to deferent segment 1, " direction is mobile, and " ring-shaped valve seats 201 of throat leaves sleeve II 2 Annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, flow of media.

Shown in attached drawing 91, it is in off state, at this point, pipe network pressure medium subnormal pressure or pressure source is lost, wave The insufficient pressure in line pipe pressure cabin 306 is to resist the elastic force of compressed spring 4, the axial return of the valve body 2, " annular of throat of sleeve II 2 Valve seat 201 is closely affixed with annular spool 101, is flow backwards medium and is gradually truncated.

For safety:

It is abnormal start-up state, at this point, pipe network pressure medium superelevation is in normal pressure, ripple pipe pressure shown in attached drawing 90 Compressed spring 4 is oppressed full of the thrust that high-pressure medium is formed in cabin 306, and making valve body 2 to deferent segment 1, " direction is mobile, II 2 " larynx of sleeve The ring-shaped valve seats 201 in portion leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, surpass Press medium release.

It shown in attached drawing 91, is in off state, pipe network pressure medium is normal, and the insufficient pressure of bellows pressure chamber 306 is to support " ring-shaped valve seats 201 of throat is closely affixed with annular spool 101 for the elastic force of incompressible spring 4, sleeve II 2.

Example IV 17

Referring to attached drawing 92,93,94, core pipe valve described in the present embodiment, for buffering non-return；100 kernel of interlayer Two axial end faces are ligulate triangle slope surfaces 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；Annular plate valve 101 sealing surface of core is that " ring-shaped valve seats 201 of throat constitutes sealing pair for arc slope and sleeve I 2 ' and sleeve II 2；Input section 1 ' with sleeve I 2 ' engaging portion bellows pressure chamber 306 is set, 306 inner cavity of bellows pressure chamber passes through communicating pipe 600 and valve Preceding pressure perforation, has the straight pin 205 ' of an axial direction in I 2 ' end face of sleeve of 306 inner cavity of bellows pressure chamber and is mounted on input 600 nozzle of communicating pipe of 1 ' end land 102 of section matches and is in same axial line, when valve is soon closed and closing process In, straight pin 205 ' by it is close, gradually insertion, until being completely embedded into 600 nozzle of communicating pipe, make bellows pressure chamber 306 Medium slowly flows out when closing on terminal, achievees the purpose that slowly closing；Ripple is arranged in the engaging portion of deferent segment 1 " with sleeve II 2 " Seals 300；Compressed spring 4 is set between deferent segment 1 " end and sleeve II 2 " end face.

It is open state shown in attached drawing 92, pipe network pressure medium is normal, and bellows pressure chamber 306 is full of pressure medium pressure Compeling compressed spring 4, make valve body 2 to deferent segment 1, " direction is mobile, and " ring-shaped valve seats 201 of throat leaves annular spool to sleeve II 2 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, flow of media.

Shown in attached drawing 93, to approach closed state, at this point, the preceding pressure subnormal pressure of valve, bellows pressure chamber 306 Insufficient pressure is to resist the elastic force of compressed spring 4, the axial return of the valve body 2, " ring-shaped valve seats 201 and annular plate valve of throat of sleeve II 2 Core 101 is close, the overwhelming majority of sleeve II 2 " annular inner wall has covered deferent segment 1 " recirculation hole 103；At this point, straight pin 205 ' connects Closely, it is embedded in 600 nozzle of communicating pipe, meanwhile, the medium of the rear pressure of valve flows backwards big portion and is truncated, and is done step-by-step in end stage slow It is slow to close.

It is completely closed state shown in attached drawing 94, the preceding pressure of valve loses pressure source, and valve body 2 continues slowly axial return, " ring-shaped valve seats 201 of throat is closely affixed sleeve II 2 with annular spool 101；At this point, straight pin 205 ' is completely embedded into communicating pipe 600 nozzles；Meanwhile flowing backwards medium and being truncated, prevent refluence medium from hammering occur.

Example IV 18

Referring to attached drawing 95,96, core pipe valve described in the present embodiment, for adjusting, depressurizing；The two of 100 kernel of interlayer A axial end face is ligulate triangle slope surface 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；It surround and embedding 101 sealing surface of annular spool for entering interlayer 100 is that " ring-shaped valve seats 201 of throat is equal for two-way slope surface and sleeve I 2 ' and sleeve II 2 Constitute sealing pair；Input section 1 ' and sleeve I 2 ' engaging portion setting its inner cavity of bellows pressure chamber 306 by communicating pipe 600 and The preceding pressure of valve penetrates through；Bellows seal 300 is arranged in the engaging portion of deferent segment 1 " with sleeve II 2 "；Deferent segment 1 " end and sleeve Compressed spring 4 II 2 " is set between end.

It is open state shown in attached drawing 95, pipe network pressure medium is normal, and bellows pressure chamber 306 is full of pressure medium shape At thrust oppress compressed spring 4, making valve body 2 to deferent segment 1, " direction is mobile, and " ring-shaped valve seats 201 of throat leaves sleeve II 2 Annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, flow of media.

It is semi-open state shown in attached drawing 96, at this point, the pressure medium of pipe network is greater than normal pressure, bellows pressure chamber 306 oppress compressed springs 4 full of the thrusts that high-pressure medium is formed, and make valve body 2 to deferent segment 1 " direction is mobile, sleeve I 2 ' ring Shape inner wall has covered the major part of 1 ' recirculation hole 103 of input section, reduces superpressure medium and passes through, reaches the work of adjusting and decompression With.

Example IV 19

Referring to attached drawing 97,98, core pipe valve described in the present embodiment is used for emergency cut-off；Two of 100 kernel of interlayer Axial end face is ligulate triangle slope surface 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；It surround and is embedded in 101 sealing surface of annular spool of interlayer 100 is two-way slope surface and sleeve I 2 ' and " the equal structure of ring-shaped valve seats 201 of throat of sleeve II 2 At sealing pair；Input section 1 ' and sleeve I 2 ' engaging portion setting its inner cavity of bellows pressure chamber 306 pass through communicating pipe 600 and valve Preceding pressure perforation；Bellows seal 300 is arranged in the engaging portion of deferent segment 1 " with sleeve II 2 "；Deferent segment 1 " end and sleeve II Compressed spring 42 " is set between end.

It is open state shown in attached drawing 97, pipe network pressure medium is normal, and bellows pressure chamber 306 is full of pressure medium shape At thrust oppress compressed spring 4, making valve body 2 to deferent segment 1, " direction is mobile, and " ring-shaped valve seats 201 of throat leaves sleeve II 2 Annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, flow of media.

It is Abnormal Shutdown state, at this point, the pressure medium superelevation of pipe network is in normal pressure, bellows pressure shown in attached drawing 98 Compressed spring 4 is oppressed full of the thrust that super-pressure medium is formed in power cabin 306, continues valve body 2 to deferent segment 1, and " direction is mobile, sleeve The ring-shaped valve seats 201 of I 2 ' throat of pipe is closely affixed with annular spool 101, is cut off super-pressure medium flow field, is protected the safety of pipeline； After pressure medium restores normal, the elastic force of compressed spring 4 pushes valve body 2 mobile to 1 ' direction of input section, flow of media.

Embodiment 50

Referring to attached drawing 99,100, core pipe valve described in the present embodiment is used for non-return, safety；The valve core tube 1 is fixing piece Perpendicular to the ground sleeve I 2 through valve body 2 coaxial from bottom to up ', the sleeve II of 2 inner cavity 200 of valve body and valve body 2 2″；Two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；" there are two radial for input section 1 ' and deferent segment 1 Recirculation hole 103；101 sealing surface of annular spool is two-way slope surface and sleeve I 2 ' and " the equal structure of ring-shaped valve seats 201 of throat of sleeve II 2 At sealing pair；Input section 1 ' and sleeve I 2 ' engaging portion setting its inner cavity of bellows pressure chamber 306 pass through on 1 ' ring wall of input section Radial communication hole 105 " and valve preceding pressure penetrate through；Bellows seal 300 is arranged in the engaging portion of deferent segment 1 " with sleeve II 2 ", 300 inner cavity of bellows seal is penetrated through by the rear pressure of deferent segment 1 " the radial communication hole 105 on ring wall " and valve；In deferent segment 1 " there is the limiter 702 for making valve body 2 can be only in open state of two suspensions axially downwardly in end.

For non-return:

It is open state shown in attached drawing 99, pipe network pressure medium is normal, and bellows pressure chamber 306 is full of pressure medium shape At thrust push valve body 2 is axial to move up, until sleeve II 2, " end is close to the limiter 702, " annular plate valve of throat of sleeve II 2 Seat 201 leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and the perforation of inner cavity 200, flow of media.

It shown in attached drawing 100, is in off state, at this point, pipe network loses pressure source, the pressure medium of bellows pressure chamber 306 The thrust of formation be less than valve body 2 from gravity, axial sagging, the sleeve II 2 " ring-shaped valve seats 201 and annular spool of throat of valve body 2 101 are closely affixed, and flow backwards medium and are truncated.

For safety:

It is abnormal start-up state, at this point, the pressure medium superelevation of pipe network is in normal pressure, bellows pressure shown in attached drawing 99 Thrust of the power cabin 306 full of high-pressure medium formation, from gravity, pushes valve body 2 is axial to move up, II 2 " throat of sleeve greater than valve body 2 Ring-shaped valve seats 201 leave annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, superpressure Medium release.

It shown in attached drawing 100, is in off state, pipe network pressure medium is normal, and the pressure medium of bellows pressure chamber 306 is formed Thrust be less than valve body 2 from gravity, sleeve II 2, " ring-shaped valve seats 201 of throat is closely affixed with annular spool 101.

Embodiment 51

Referring to attached drawing 101,102, core pipe valve described in the present embodiment is used for emergency cut-off；The valve core tube 1 is fixing piece Perpendicular to the ground sleeve I 2 through valve body 2 coaxial from bottom to up ', the sleeve II of 2 inner cavity 200 of valve body and valve body 2 2″；Two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；" there are two radial for input section 1 ' and deferent segment 1 Recirculation hole 103；101 sealing surface of annular spool is arc slope and sleeve I 2 ' and " the equal structure of ring-shaped valve seats 201 of throat of sleeve II 2 At sealing pair；Input section 1 ' and sleeve I 2 ' engaging portion setting its inner cavity of bellows pressure chamber 306 pass through on 1 ' ring wall of input section Radial communication hole 105 " and valve preceding pressure penetrate through；Bellows seal 300 is arranged in the engaging portion of deferent segment 1 " with sleeve II 2 ", 300 inner cavity of bellows seal is penetrated through by the rear pressure of deferent segment 1 " the radial communication hole 105 on ring wall " and valve；Input section 1 ' Safety belt 705 is set between I 2 ' end of end and sleeve.

It is open state shown in attached drawing 101, pipe network pressure medium is normal, and bellows pressure chamber 306 is full of pressure medium shape At thrust be greater than valve body 2 from gravity, push valve body 2 is axial to move up, safety belt 705, which limits valve body 2, can be only in unlatching The recirculation hole 103 of position, sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " with Inner cavity 200 penetrates through, flow of media.

It is Abnormal Shutdown state, at this point, the pressure medium superelevation of pipe network is in normal pressure, bellows pressure shown in attached drawing 102 Power cabin 306 is greater than the summation of the power for adding the safety belt 705 that breaks from gravity of valve body 2 full of the thrust that super-pressure medium is formed, and protects Dangerous band 705 is broken, and 2 moment of valve body moves up, and ring-shaped valve seats 201 and the annular spool 101 of I 2 ' throat of sleeve are closely affixed, and is cut Broken height presses medium flow field, protects the safety of pipeline.

Embodiment 52

Referring to attached drawing 103,104,105,106, core pipe valve described in the present embodiment, be related to opening and closing, non-return, automatic adjustment and Decompression；Two axial end faces of 100 kernel of interlayer are spherical surfaces；" there are four radial recirculation holes for input section 1 ' and deferent segment 1 103；101 sealing surface of annular spool for surrounding and being embedded in interlayer 100 is two-way slope surface and sleeve I 2 ' and " ring of throat of sleeve II 2 Shape valve seat 201 constitutes sealing pair；Input section 1 ' and sleeve I 2 ' engaging portion setting its inner cavity of bellows pressure chamber 306 pass through The perforation of the preceding pressure of communicating pipe 600 and valve, is arranged triple valve 603 in the middle part of communicating pipe 600；The engaging portion of deferent segment 1 " with sleeve II 2 " Bellows seal 300 is set；Compressed spring 4 is axially set between deferent segment 1 " end and sleeve II 2 " end.

It is open state shown in attached drawing 103, pipe network pressure medium is normal, opens triple valve 603, bellows pressure chamber 306 The elastic force of compressed spring 4 is resisted full of the thrust that pressure medium is formed, pushing valve body 2 to deferent segment 1, " direction is mobile, sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 passed through with inner cavity 200 It is logical, flow of media.

It is smaller part open state shown in attached drawing 104, at this point, pipe network pressure medium is higher than normal pressure, bellows pressure chamber 306 are greater than the elastic force of compressed spring 4 full of the thrust that high-pressure medium is formed, and continuing valve body 2 to deferent segment 1, " direction is mobile, sleeve I 2 ' annular inner wall of pipe has covered the major part of 1 ' recirculation hole 103 of input section, reduces superpressure medium and passes through, and reaches adjusting and subtracts The effect of pressure.

When the medium of pipe network reaches super-pressure, it may appear that the situation of emergency cut-off.

Shown in attached drawing 105, for i.e. by closed state, at this point, the preceding pressure pressure medium subnormal pressure of valve or gradually Pressure source is lost, under the elastic force effect of compressed spring 4, the axial return of valve body 2, " annular inner wall covers the overwhelming majority to sleeve II 2 Deferent segment 1 " recirculation hole 103, " ring-shaped valve seats 201 of throat will be affixed sleeve II 2 with annular spool 101.

It shown in attached drawing 106, is in off state, one, closing triple valve 603, cutting pressure medium enter bellows pressure chamber 306, regulating three-way valve 603 bleeds off the pressure medium of bellows pressure chamber 306, under the elastic force effect of compressed spring 4, valve body 2 " ring-shaped valve seats 201 of throat is closely affixed with annular spool 101, the preceding pressure medium flow field of stop valve for axial return, sleeve II 2； Two, pipe network loses pressure source, and bellows pressure chamber 306 loses pressure medium, under the elastic force effect of compressed spring 4,2 axis of valve body To return, " ring-shaped valve seats 201 of throat is closely affixed sleeve II 2 with annular spool 101, and medium is flow backwards in cutting.

Embodiment 53

Referring to attached drawing 107,108,109,110, core pipe valve described in the present embodiment is used for pressure limiting；100 kernel of interlayer Two axial end faces be plane；Input section 1 ' and deferent segment 1 " have the flat radial circulation of three circles totally 24 well-balanced arrangements Hole 103, wherein the total circulation area of radial recirculation hole 103 of input section 1 ' be greater than deferent segment 1 " radial recirculation hole 103 always circulate Area；It surround and is unidirectional slope surface and the sleeve II 2 " ring-shaped valve seats of throat with 101 sealing surface of annular spool of 100 one of interlayer 201 constitute sealing pair；1 ' outer diameter of input section is slightly larger than 1 " outer diameter of deferent segment；Input section 1 ' and sleeve I 2 ' engaging portion wave is set 306 its inner cavity of line pipe pressure cabin " is penetrated through by the radial communication hole 105 on 1 ' ring wall of input section with the preceding pressure of valve；Deferent segment 1 " With sleeve II 2 " engaging portion be arranged bellows seal 300；Pressure is set between deferent segment 1 " end and sleeve II 2 " end face Contracting spring 4.

It is open state shown in attached drawing 107, pipe network pressure medium is normal, and bellows pressure chamber 306 is full of pressure medium pressure Compeling compressed spring 4, make valve body 2 to deferent segment 1, " direction is mobile, and " ring-shaped valve seats 201 of throat leaves annular spool to sleeve II 2 101, recirculation hole 103, inner cavity 200, deferent segment 1 of the medium through input section 1 ' " 103 pressure limiting of recirculation hole circulation.

It is the closed state of one third shown in attached drawing 108, at this point, the pressure medium of pipe network is greater than normal pressure, ripple The elastic force of compressed spring 4 is resisted in pipe pressure cabin 306 full of high-pressure medium, continues valve body 2 to deferent segment 1, and " direction is mobile, sleeve I 2 ' annular inner wall covered circle totally 8 recirculation holes 103 of input section 1 ', further pressure limiting circulation.

It is 2/3rds closed state, at this point, the pressure medium superelevation of pipe network is in normal pressure, wave shown in attached drawing 109 Compressed spring 4 is oppressed full of super-pressure medium in line pipe pressure cabin 306, makes valve body 2 still to deferent segment 1, and " direction is mobile, sleeve I 2 ' annular inner wall has covered two circle totally 16 recirculation holes 103 of input section 1 ', and further pressure limiting is circulated.

Shown in attached drawing 110, it is in off state, at this point, the pressure medium subnormal pressure of pipe network or pressure source is lost, Bellows pressure chamber 306 loses pressure, and under the elastic force effect of compressed spring 4, the axial return of valve body 2, sleeve II 2 be " throat Ring-shaped valve seats 201 is closely affixed with annular spool 101；Medium is flow backwards in cutting.

Embodiment 54

Referring to attached drawing 111,112, core pipe valve described in the present embodiment, for high voltage pulse injection of relying on oneself；The valve core tube 1 For fixing piece from top to bottom the coaxial sleeve I 2 through valve body 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "； Two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；" there are two radial flows for input section 1 ' and deferent segment 2 Through-hole 103；Surround and be two-way slope surface and sleeve II 2 with 101 sealing surface of annular spool of the one of interlayer 100 " throat ring Shape valve seat 201 constitutes sealing pair；Input section 1 ' and sleeve I 2 ' engaging portion setting its inner cavity of bellows pressure chamber 306 pass through it is defeated Enter two radial communication holes 105 on 1 ' ring wall of section " and the preceding pressure of valve penetrates through；It is set between I 2 ' end of input section 1 ' and sleeve Set extension spring 4 '；In 1 ' end of input section, permanent magnet 509 is set；In the medium moment open process of circulation, extension spring 4 ' pulling force is greater than the motive force of valve body 2 formed from pressure medium under the pulse condition that gravity adds bellows pressure chamber 306, The pressure energy that medium is put aside under moment closed state, the motive force for forming the pressure medium of bellows pressure chamber 306 are greater than The pulling force of extension spring 4 ' adds the magnetic force of permanent magnet 509；The liner of sleeve I 2 ' have tubular.

It is of short duration closed state, at this point, the preceding pressure of valve is in initial Restoration stage, ripple pipe pressure shown in attached drawing 111 The pulling force that the motive force that the pressure medium in cabin 306 is formed is less than extension spring 4 ' adds the magnetic force of permanent magnet 509, and valve body 2 is axial Move up, sleeve II 2 that " ring-shaped valve seats 201 of throat is affixed with 101 moment of annular spool.

It is of short duration open state, at this point, the preceding hematocrit of valve has gathered elevated pressures, bellows pressure chamber shown in attached drawing 112 The pulling force that the motive force that 306 ' pressure medium is formed is greater than extension spring 4 ' adds the magnetic force of permanent magnet 509, keeps valve body 2 axial Move down, sleeve II 2 recirculation hole 103 of " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " with Inner cavity 200 penetrates through, medium injection；In this way, moving in circles to form pulsed pressure change state.

Embodiment 55

Referring to attached drawing 113,114, core pipe valve described in embodiment is used for safety, pressure release；The two of 100 kernel of interlayer A axial end face is spherical surface；" there are four radial recirculation holes 103 for input section 1 ' and deferent segment 1；Composite seal pair: one, around every The sealing surface of the annular spool 101 of layer 100 is unidirectional slope surface and sleeve II 2 " the composition sealing pair of ring-shaped valve seats 201 of throat, two, Around interlayer 100 sealing ring II 302 ' with sleeve II 2 " annular inner wall constitute secondary sealing pair；Input section 1 ' and sleeve I 2 ' Bellows seal 300 is arranged in engaging portion, and sealing ring 302 is arranged in the engaging portion of deferent segment 1 " with sleeve II 2 "；Input section 1 ' is held Ripple blind pipe 202 is set between I 2 ' end of portion and sleeve, and ripple blind pipe 202 passes through the duct 200 of 2 hollow out of valve body " and inner cavity 200 perforations；Extension spring 4 ' is set between 1 ' end of I 2 ' end of sleeve and input section.

It shown in attached drawing 113, is in off state, pipe network pressure medium is normal, the pressure initiation of 202 inner cavity medium of ripple blind pipe Thrust be less than extension spring 4 ' pulling force, sleeve II 2 " ring-shaped valve seats 201 of throat is closely affixed with annular spool 101, tuck inside the sleeve Pipe II 2 " annular inner wall and sealing ring II 302 ' be closely affixed.

It is open state, for the pressure medium superelevation of pipe network in normal pressure, 202 inner cavity of ripple blind pipe is super shown in attached drawing 114 The thrust of the pressure initiation of high medium is greater than the pulling force of extension spring 4 ', and pushing valve body 2 to deferent segment 1, " direction is mobile, sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, sleeve II 2 " annular inner wall leave sealing ring II 302 ', it is then, defeated Enter section 1 ' and deferent segment 1 " radial recirculation hole 103 with inner cavity 200 penetrate through, superpressure medium release.

It is not in frequent bounce leakage when the setting of composite seal pair ensure that the medium superelevation critical pressure of pipe network Situation.

Embodiment 56

Referring to attached drawing 115,116,117,118, core pipe valve described in embodiment, for automatically adjusting, depressurizing, non-return；Institute Two axial end faces for stating 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；" there are two radial for input section 1 ' and deferent segment 1 Recirculation hole 103；The sealing surface for surrounding and being embedded in the annular spool 101 of interlayer 100 is two-way slope surface and sleeve I 2 ' and sleeve II 2 " The ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' and the engaging portion of sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " are equal Bellows seal 300 is set；Ripple blind pipe 202, ripple blind pipe 202 are set between 1 ' end of input section and I 2 ' end of sleeve Pass through the duct 200 of 2 hollow out of valve body and " is penetrated through with inner cavity 200；Setting compression bullet between deferent segment 1 " end and sleeve II 2 " end Spring 4.

It is open state shown in attached drawing 115, at this point, the pressure medium of pipe network is normal, 202 inner cavity medium pressure of ripple blind pipe The thrust that power is formed is greater than the elastic force of compressed spring 4, and pushing valve body 2 to deferent segment 1, " direction is mobile, " the ring of throat of sleeve II 2 Shape valve seat 201 leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 with inner cavity 200 penetrate through, medium flow field It is logical.

Shown in attached drawing 116, equilibrium state is depressurized to adjust, at this point, the pressure medium of pipe network is higher, in ripple blind pipe 202 The thrust that chamber pressure medium is formed is higher than the elastic force of compressed spring 4, and pushing valve body 2 to continue to deferent segment 1, " direction is mobile, sleeve I The recirculation hole 103 that 2 ' annular inner wall has covered input section 1 ' is most of, medium Finite Circulation, plays adjusting decompression balance and makees With.

It is micro- open state shown in attached drawing 117, at this point, the pressure medium of pipe network is lower, 202 inner cavity medium of ripple blind pipe The thrust of pressure initiation is less than the elastic force of compressed spring 4, the axial return of valve body 2, sleeve II 2 " annular inner wall covered output Section 1 " recirculation hole 103 it is most of, low-pressure medium circulation.

It shown in attached drawing 118, is in off state, at this point, the upstream of pipe network loses the pressure source, " annular plate valve of throat of sleeve II 2 Seat 201 is closely affixed with annular spool 101, and the medium for cutting off downstream is flow backwards.

Embodiment 57

Referring to attached drawing 119,120, core pipe valve described in embodiment is used for emergency cut-off；The interlayer 100 is by kernel axial direction The intermediate pipeline section for being pressed into valve core tube is constituted, and two axial end faces of 100 kernel of interlayer are spherical surfaces；Input section 1 ' and deferent segment 1 are " There are four radial recirculation holes 103；The sealing surface of annular spool 101 is two-way slope surface and sleeve I 2 ' and " ring of throat of sleeve II 2 Shape valve seat 201 constitutes sealing pair；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with ripple Seals 300；Ripple blind pipe 202 is set between sleeve II 2 " end and deferent segment 1 " end, and ripple blind pipe 202 passes through valve body The duct 200 of 2 hollow outs " is penetrated through with inner cavity 200；Safety belt 705 is set between sleeve II 2 " and deferent segment 1 " end.

It is open state shown in attached drawing 119, at this point, the medium of pipe network is normal pressure, 202 inner cavity medium of ripple blind pipe The thrust of pressure initiation is less than the power for the safety belt 705 that breaks, under the constraint of the safety belt 705, " annular plate valve of throat of sleeve II 2 Seat 201 leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 with the perforation of inner cavity 200, flow of media.

It is Abnormal Shutdown state, at this point, the pressure medium superelevation of pipe network upstream is in normal pressure, ripple shown in attached drawing 120 The thrust that 202 inner cavity superelevation pressure medium of blind pipe is formed is greater than the power for the safety belt 705 that breaks, and after safety belt 705 breaks, pushes Valve body 2 is mobile to 1 ' direction of input section, sleeve II 2, and " ring-shaped valve seats 201 of throat is closely affixed with annular spool 101, and cutting is high Medium flow field is pressed, pipeline and equipment are protected.

Embodiment 58

Referring to attached drawing 121,122, core pipe valve described in embodiment is used for non-return, safety；The valve core tube 1 is fixing piece The sleeve I 2 through valve body 2 coaxial from bottom to up ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；In interlayer 100 Two axial end faces of core are ligulate triangle slope surfaces 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；Ring Around and to be embedded in the sealing surface of the annular spool 101 of interlayer 100 be two-way slope surface and sleeve I 2 ' and " annular plate valve of throat of sleeve II 2 Seat 201 constitutes sealing pair；It is close that the engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows Sealing 300；Ripple blind pipe 202 is set between 1 ' end of input section and I 2 ' end of sleeve, and ripple blind pipe 202 passes through 2 hollow out of valve body Duct 200 " with inner cavity 200 penetrate through；Limiter 702 is set between sleeve II 2 " and deferent segment 1 " end.

For non-return:

It is open state shown in attached drawing 121, at this point, the pressure medium of pipe network is normal, 202 inner cavity medium pressure of ripple blind pipe The thrust that power is formed is greater than valve body 2 from gravity, and valve body 2 is axial to be moved up, and at that time, limiter 702, which limits valve body 2, to be continued The recirculation hole 103 of uplink, sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " is equal It is penetrated through with inner cavity 200, flow of media.

It shown in attached drawing 122, is in off state, at this point, the pressure medium subnormal pressure of pipe network or upstream lose Pressure source, 202 inner cavity pressure medium of ripple blind pipe cannot withstand valve body 2 from gravity, and valve body 2 is axial to be moved down, II 2 " throat of sleeve Ring-shaped valve seats 201 be closely affixed with annular spool 101, cutting downstream media flow backwards.

For safety:

It is open state, at this point, the pressure medium superelevation of pipe network, 202 inner cavity medium pressure of ripple blind pipe shown in attached drawing 121 The thrust superelevation that power is formed is in valve body 2 from gravity, and at that time, limiter 702 limits the valve body 2, " annular of throat of sleeve II 2 Valve seat 201 leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 with inner cavity 200 penetrate through, superpressure medium Release.

Shown in attached drawing 122, it is in off state, at this point, the pressure medium of pipe network is normal, 202 inner cavity medium pressure of ripple blind pipe Power is lower than valve body 2 from gravity, and valve body 2 is axial to be moved down, sleeve II 2 " ring-shaped valve seats 201 of throat and the close phase of annular spool 101 Patch.

Embodiment 59

Referring to attached drawing 123,124, core pipe valve described in embodiment is used for emergency cut-off；The valve core tube 1 be fixing piece from Under the supreme coaxial sleeve I 2 through valve body 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；100 kernel of interlayer Two axial end faces be ligulate triangle slope surface 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；It surround And the sealing surface for being embedded in the annular spool 101 of interlayer 100 is two-way slope surface and sleeve I 2 ' and " ring-shaped valve seats of throat of sleeve II 2 201 constitute sealing pair；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with sylphon seal Part 300；Ripple blind pipe 202 is set between sleeve II 2 " end and deferent segment 1 " end, and ripple blind pipe 202 passes through 2 hollow out of valve body Duct 200 " with inner cavity 200 penetrate through；Safety belt 705 is set between deferent segment 1 " end and sleeve II 2 " end；Input section 1 ' Compressed spring 4 is set between I 2 ' end of end and sleeve.

It is open state shown in attached drawing 123, at this point, the pressure medium of pipe network is in normal pressure, in ripple blind pipe 202 The thrust that chamber pressure medium is formed adds valve body 2 to keep balancing from gravity and the elastic force of compressed spring 4, and at that time, safety belt 705 is In tensioned state, the stream of sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " Through-hole 103 is penetrated through with inner cavity 200, flow of media.

It is Abnormal Shutdown state, at this point, the pressure medium superelevation of pipe network upstream is in normal pressure, ripple shown in attached drawing 124 The power that the thrust that 202 inner cavity superelevation pressure medium of blind pipe is formed adds valve body 2 to be greater than the safety belt 705 that breaks from gravity adds compressed spring 4 elastic force after safety belt 705 breaks, pushes 2 moment of valve body to move down, " the ring-shaped valve seats 201 and ring of throat of sleeve II 2 Shape spool 101 is closely affixed, and cutoff high medium flow field protects pipeline and equipment not to be damaged；After pressure medium is normal by It can be restored to Normal on state in the elastic force effect of compressed spring 4, then, reinstall safety belt 705.

Embodiment 60

Referring to attached drawing 125,126, core pipe valve described in embodiment is used for emergency cut-off；Two of 100 kernel of interlayer Axial end face is ligulate triangle slope surface 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；It surround and is embedded in 101 sealing surface of annular spool of interlayer 100 is two-way slope surface and sleeve I 2 ' and " the equal structure of ring-shaped valve seats 201 of throat of sleeve II 2 At sealing pair；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " and sleeve II 2 " be respectively provided with bellows seal 300 and Sealing ring 302 is connected to 300 inner cavity of both ends bellows seal a communicating pipe II 602 for reducing opening and closing resistance；Input section 1 ' Ripple blind pipe 202 is set between I 2 ' end of end and sleeve, and ripple blind pipe 202 penetrates through the preceding pressure of valve by communicating pipe 600；It is defeated Enter setting safety belt 705 between I 2 ' end of section 1 ' and sleeve.

It is open state shown in attached drawing 125, at this point, the pressure medium of pipe network is normal, 202 inner cavity medium pressure of ripple blind pipe The thrust that power is formed is less than the power for the safety belt 705 that breaks, and pushes valve body 2 to deferent segment 1 " direction is mobile, at that time, safety belt 705 It is only at tensioned state, sleeve I 2 ' " ring-shaped valve seats 201 of throat is away from annular spool 101, input section 1 ' with sleeve II 2 With deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, flow of media.

It is Abnormal Shutdown state, at this point, the pressure medium superelevation of pipe network upstream is in normal pressure, ripple shown in attached drawing 126 The thrust that 202 inner cavity superelevation pressure medium of blind pipe is formed is greater than the power for the safety belt 705 that breaks, after safety belt 705 breaks, wink Between, pushing valve body 2 to deferent segment 1 " direction is mobile, and ring-shaped valve seats 201 and the annular spool 101 of I 2 ' throat of sleeve are closely affixed, Cutoff high medium flow field protects pipeline and equipment not to be damaged.

Embodiment 61

Referring to attached drawing 127,128,129,130,131, core pipe valve described in embodiment, for opening and closing, automatically adjusting, subtract Pressure, balance, non-return, emergency cut-off；Two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；Input section 1 ' and deferent segment 1 " there are two radial recirculation holes 103；101 sealing surface of annular spool is two-way slope surface and sleeve I 2 ' and sleeve II 2 " ring-shaped valve seats 201 of throat constitutes sealing pair；The combination of input section 1 ' and sleeve I 2 ' and deferent segment 1 " and sleeve II 2 " Portion is respectively provided with bellows seal 300；Ripple blind pipe 202, ripple blind pipe are set between 1 ' end of I 2 ' end of sleeve and input section 202 pass through the preceding pressure of 600 communicating valve of communicating pipe, there is triple valve 603 in the middle part of communicating pipe 600；Deferent segment 1 " end and sleeve II 2 " Compressed spring 4 is set between end.

It shown in attached drawing 127, is in off state, one, at this point, closing triple valve 603 and bleeding off Jie of 202 inner cavity of ripple blind pipe Matter pressure, the elastic force of compressed spring 4 push valve body 2 mobile to 1 ' direction of input section, sleeve II 2 " ring-shaped valve seats 201 of throat with Annular spool 101 is closely affixed；Two, upstream medium loses pressure source, and 202 inner cavity of ripple blind pipe loses pressure medium, compresses bullet The elastic force of spring 4 pushes valve body 2 mobile to 1 ' direction of input section, sleeve II 2, and " ring-shaped valve seats 201 and annular spool 101 of throat are tight Close to be affixed, cutting medium is flow backwards, and realizes non-return.

It is micro- open state, at this point, triple valve 603 is open state, the pressure medium of pipe network is slightly lower shown in attached drawing 128 In normal pressure, the thrust that 202 inner cavity pressure medium of ripple blind pipe is formed is slightly larger than the elastic force of compressed spring 4, push valve body 2 to 1 ' direction of input section is mobile, and the recirculation hole 103 of sleeve II 2 " annular inner wall covered deferent segment 1 " is most of, medium current limiting It is logical.

It is open state shown in attached drawing 129, at this point, the pressure medium of pipe network is normal, 202 inner cavity medium pressure of ripple blind pipe The thrust that power is formed is greater than the elastic force of compressed spring 4 and keeps balancing, and pushing valve body 2 to deferent segment 1, " direction is mobile, sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 passed through with inner cavity 200 It is logical, flow of media.

Shown in attached drawing 130, equilibrium state is depressurized to adjust, at this point, the pressure medium of pipe network is higher than normal pressure, ripple is blind The thrust that the higher pressure medium in 202 inner cavity of pipe is formed is higher than the elastic force of compressed spring 4, continues to press on valve body 2 to deferent segment 1 " Direction is mobile, sleeve I 2 ' annular inner wall covered the major part of 1 ' recirculation hole 103 of input section, reduce high-pressure medium stream, play It adjusts, the effect of decompression and balance.

It is Abnormal Shutdown state, at this point, the pressure medium superelevation of pipe network upstream is in normal pressure, ripple shown in attached drawing 131 The thrust superelevation that 202 inner cavity superelevation pressure medium of blind pipe is formed still pushes valve body 2 to deferent segment in the elastic force of compressed spring 4 1 " direction is mobile, and ring-shaped valve seats 201 and the annular spool 101 of I 2 ' throat of sleeve are closely affixed, cutoff high medium flow field, protection Pipeline and equipment are not damaged；Elastic force effect after pressure medium is normal due to compressed spring 4 can be restored to just normally opened Open state.

101 sealing surface of embodiment annular spool summarizes:

Referring to attached drawing 132,133,134,135,136,137,138,139,101 sealing surface of annular spool described in embodiment Summarize:

It is described to surround and be unidirectional slope surface with 101 sealing surface of annular spool of 100 one of interlayer shown in attached drawing 132；

Shown in attached drawing 133,101 sealing surface of annular spool of the circular interlayer 100 is unidirectional slope surface；

It is described to surround and be two-way slope surface with 101 sealing surface of annular spool of 100 one of interlayer shown in attached drawing 134；

It is described to surround and to be embedded in 101 sealing surface of annular spool of interlayer 100 be two-way slope surface shown in attached drawing 135；

Shown in attached drawing 136,101 sealing surface of annular spool of the circular interlayer 100 is two-way slope surface；

It is described to surround and be arc slope with 101 sealing surface of annular spool of 100 one of interlayer shown in attached drawing 137；

It is described to surround and to be embedded in 101 sealing surface of annular spool of interlayer 100 be arc slope shown in attached drawing 138；

Shown in attached drawing 139,101 sealing surface of annular spool of the circular interlayer 100 is arc slope.

Claims

1. core pipe valve, which is characterized in that valve core tube (1) is coaxial sleeve I (2 '), the valve body through valve body (2) of fixing piece (2) sleeve II (2 ") of inner cavity (200) and valve body (2)；Have axial interlayer (100) in the middle part of valve core tube (1), interlayer (100) by The intermediate pipeline section of the valve core tube (1) of kernel and kernel radial radiation is constituted；The axially adjacent both sides of interlayer (100) are input respectively The radial recirculation hole (103) of at least one of section (1 ') and deferent segment (1 ")；Annular spool (101) and sleeve around interlayer (100) The ring-shaped valve seats (201) of at least one sleeve throat of pipe I (2 ') and sleeve II (2 ") constitutes sealing pair；Input section (1 ') and defeated Difference >=0 of the outer diameter of section (1 ") out, input section (1 ') and sleeve I (2 ') and deferent segment (1 ") and sleeve II (2 ") are shaft hole mode Cooperate the setting sealing of its at least one engaging portion；Using setting connection valve body (2) from power drive or outside the valve body (2) and The driving element for moving axially valve body (2)；Under the action of both direction potential energy, valve body (2) makees axis relative to valve core tube (1) Opening and closing, power and energy are realized to moving back and forth.

2. core pipe valve described in accordance with the claim 1, which is characterized in that the input section (1 ') and sleeve I (2 ') and deferent segment Sealing ring (302) are arranged at least one engaging portion of (1 ") and sleeve II (2 ").

3. core pipe valve described in accordance with the claim 1, which is characterized in that the input section (1 ') and sleeve I (2 ') and deferent segment Bellows seal (300) are arranged at least one engaging portion of (1 ") and sleeve II (2 ").

4. core pipe valve described in accordance with the claim 3, which is characterized in that setting one communicating pipe II (602) penetrates through two ripples The inner cavity of seals (300).

5. core pipe valve described in accordance with the claim 3, which is characterized in that the engaging portion of the input section (1 ') and sleeve I (2 ') Bellows seal (300) inner cavity communicated by the preceding pressure in radial communication hole (105 ") and valve on input section (1 ') ring wall.

6. core pipe valve described in accordance with the claim 3, which is characterized in that the engaging portion of the deferent segment (1 ") and sleeve II (2 ") Bellows seal (300) inner cavity communicated by the rear pressure in radial communication hole (105 ") and valve on deferent segment (1 ") ring wall.

7. core pipe valve described in accordance with the claim 1, which is characterized in that the input section (1 ') and sleeve I (2 ') and deferent segment Lip ring (303) are arranged at least one engaging portion of (1 ") and sleeve II (2 ").

8. core pipe valve described in accordance with the claim 1, which is characterized in that the form of the inner cavity (200) is spherical in opening state Interlayer (100) and recirculation hole (103) are wrapped up under state.

9. core pipe valve described in accordance with the claim 1, which is characterized in that longitudinal form of the inner cavity (200) is that round pie exists Interlayer (100) and recirculation hole (103), the diameter of thickness >=annular spool (101) are wrapped up under open state.

10. core pipe valve described in accordance with the claim 1, which is characterized in that longitudinal form of the inner cavity (200) is middle part It is divided into the diameter of tubular its diameter >=annular spool (101) and the half round pie on two radial symmetrics arrangement tubular both sides, The width of thickness >=recirculation hole (103).

11. core pipe valve described in accordance with the claim 1, which is characterized in that two axial end faces of interlayer (100) kernel are Arc lower guide surface, inner cavity (200) longitudinal direction form is fish maw shape, is located at respective the one of input section (1 ') and deferent segment (1 ") lower part A recirculation hole (103) through-lumen (200).

12. core pipe valve described in accordance with the claim 1, which is characterized in that two axial end faces of interlayer (100) kernel are Ligulate triangle slope surface (100 ').

13. core pipe valve described in accordance with the claim 1, which is characterized in that the sealing ring II (302 ') around the interlayer (100) Secondary sealing pair is constituted with the annular inner wall of sleeve I (2 ') and at least one sleeve of sleeve II (2 ").

14. core pipe valve described in accordance with the claim 1, which is characterized in that the annular spool (101) is axial telescopic wave Line annular solid；The sealing surface of ripple annular solid axial ends ring packing head is closely affixed with ring-shaped valve seats (201).

15. core pipe valve described in accordance with the claim 1, which is characterized in that the sealing surface of the annular spool (101) is unidirectional slope Face.

16. core pipe valve described in accordance with the claim 1, which is characterized in that the sealing surface of the annular spool (101) is double pitch Face.

17. core pipe valve described in accordance with the claim 1, which is characterized in that the sealing surface of the annular spool (101) is circular arc slope Face.

18. core pipe valve described in accordance with the claim 1, which is characterized in that at least the one of the sleeve I (2 ') and sleeve II (2 ") A sleeve has the liner of tubular.

19. core pipe valve described in accordance with the claim 1, which is characterized in that in the annular of the sleeve I (2 ') and sleeve II (2 ") There are ball (707) between wall and the annular outer wall of valve core tube (1), is attached respectively to the annular of sleeve I (2 ') and sleeve II (2 ") Inner wall.

20. core pipe valve described in accordance with the claim 1, which is characterized in that the input section (1 ') and sleeve I (2 ') and deferent segment Compressed spring (4) are set between (1 ") and at least one region of sleeve II (2 ").

21. core pipe valve described in accordance with the claim 1, which is characterized in that the input section (1 ') and sleeve I (2 ') and deferent segment Extension spring (4 ') are set between (1 ") and at least one region of sleeve II (2 ").

22. core pipe valve described in accordance with the claim 1, which is characterized in that input section (1 ') end and sleeve I (2 ') end Safety belt (705) are set at least one region of deferent segment (1 ") end and sleeve II (2 ") end.

23. core pipe valve described in accordance with the claim 1, which is characterized in that in its of the input section (1 ') and deferent segment (1 ") In the setting of end be attracted the permanent magnet (509) of adjacent valve body (2) end face.

24. core pipe valve described in accordance with the claim 1, which is characterized in that the valve body (2) is its inner cavity of bell-jar structure (200) only one axial end face, another face area is zero.

25. core pipe valve according to claim 7, which is characterized in that the lip ring (303) is unidirectional slope surface difference It is embedded in the lip of sleeve I (2 ') and sleeve II (2 ") end, the outer ring surface difference of sleeve I (2 ') end and sleeve II (2 ") end It is threadedly coupled with a spiral fastener (206), lip ring (303) is equal during spiral fastener (206) precession It is promoted to interlayer (100) direction, increasingly holding valve core tube (1).

26. core pipe valve described in accordance with the claim 1, which is characterized in that the valve core tube (1) is perpendicular to ground, valve body (2) shoulder Portion is set with counterweight (708).

27. according to any core pipe valve of claim 1 to 24, which is characterized in that the driving element is foot pedal (502)。

28. according to any core pipe valve of claim 1 to 24, which is characterized in that the driving element is rope (5).

29. according to any core pipe valve of claim 1 to 24, which is characterized in that the driving element is: sleeve I (2 ') One of end face with sleeve II (2 ") is resistance discs (203 ').

30. according to any core pipe valve of claim 1 to 24, which is characterized in that the driving element is: in input section Valve rod base (504 ') are arranged in one of end of (1 ') and deferent segment (1 "), and valve rod (504) passes through valve rod base (504 '), tail Portion is connect with adjacent valve body (2) end.

31. according to any core pipe valve of claim 1 to 24, which is characterized in that the driving element is: in input section Hydraulic cylinder (506) are arranged in one of end of (1 ') and deferent segment (1 "), and hydraulic cylinder (506) inner cavity passes through communicating pipe (600) It is penetrated through with the preceding pressure of valve, hydraulic stem one end connects valve body (2).

32. according to any core pipe valve of claim 1 to 24, which is characterized in that the driving element is: input section (1 ') End and sleeve I (2 ') end and deferent segment (1 ") end and sleeve II (2 ") end are respectively provided with a snak link (401), input Section (1 ') end and deferent segment (1 ") end are respectively provided with the extension spring that can be affiliated to the snak link (401) of adjacent sleeve (4′)。

33. according to any core pipe valve of claim 1 to 24, which is characterized in that the driving element is: input section (1 ') Electromagnet (508) are set at least one end of axial two ends of deferent segment (1 ").

34. according to the core pipe valve described in claim 33, which is characterized in that the corresponding sleeve end face of the electromagnet (508) There are one and electromagnet (508) matched iron block (509 ").

35. according to the core pipe valve described in claim 33, which is characterized in that the electromagnet (508) contains plug (508 '), Plug (508 ') one end connects the axially adjacent end of valve body (2).

36. according to any core pipe valve of claim 1 to 24, which is characterized in that the driving element is: input section (1 ') Bellows pressure chamber (306) are set at least one engaging portion of sleeve I (2 ') and deferent segment (1 ") and sleeve II (2 "), ripple Pipe pressure cabin (306) inner cavity passes through the perforation of the preceding pressure of communicating pipe (600) and valve.

37. according to the core pipe valve described in claim 36, which is characterized in that the sleeve in bellows pressure chamber (306) inner cavity Pipe I (2 ') end face have the straight pin (205 ') an of axial direction be mounted on input section (1 ') end and corresponding communicating pipe (600) nozzle matches and is in same axial line, and when valve is soon closed in closing process, straight pin (205 ') is by connecing Closely, it is gradually embedded in, until being completely embedded into communicating pipe (600) nozzle.

38. according to any core pipe valve of claim 1 to 24, which is characterized in that the driving element is: input section (1 ') Bellows pressure chamber (306) are set with the engaging portion of sleeve I (2 '), bellows pressure chamber (306) inner cavity passes through input section (1 ') The preceding pressure in radial communication hole (105 ") and valve on ring wall penetrates through.

39. according to any core pipe valve of claim 1 to 24, which is characterized in that the driving element is: input section (1 ') Ripple is arranged at least one region between end and sleeve I (2 ') end and deferent segment (1 ") end and sleeve II (2 ") end Blind pipe (202), ripple blind pipe (202) pass through the perforation of the preceding pressure of communicating pipe (600) and valve.

40. according to any core pipe valve of claim 1 to 24, which is characterized in that the driving element is: deferent segment (1 ") Ripple blind pipe (202) are set between end and sleeve II (2 ") end, ripple blind pipe (202) passes through the duct of valve body (2) hollow out (200 ") and inner cavity (200) penetrate through.