CN1419643A - A pipe burst protect device - Google Patents
A pipe burst protect device Download PDFInfo
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- CN1419643A CN1419643A CN 01807229 CN01807229A CN1419643A CN 1419643 A CN1419643 A CN 1419643A CN 01807229 CN01807229 CN 01807229 CN 01807229 A CN01807229 A CN 01807229A CN 1419643 A CN1419643 A CN 1419643A
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- 230000033001 locomotion Effects 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims description 199
- 238000004880 explosion Methods 0.000 claims description 37
- 238000013016 damping Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000002457 bidirectional effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 230000001953 sensory effect Effects 0.000 abstract 2
- 238000004140 cleaning Methods 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 9
- 230000002441 reversible effect Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/16—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member
- F16K31/163—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member the fluid acting on a piston
- F16K31/1635—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member the fluid acting on a piston for rotating valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/1022—Fluid cut-off devices automatically actuated
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/005—Valves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/10—Preventing damage by freezing or excess pressure or insufficient pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Actuator (AREA)
- Fluid-Driven Valves (AREA)
Abstract
A pipe burst protect device which can close a valve by self-force and a cleaning pipe device can pass through it. Said device includes a main valve and a first control device which controls the main valve to open and close; a sensory element which can sense flow rate; and a control device to control the movement of the sensory element.
Description
Self-operated pipe explosion protection device art
Put the present invention relates to the Kong Installed of fluid line, the pipe explosion protection device of the pipeline of the long-distance trandfer fluid for the wiper that can particularly pass through.Background technology
Existing pipe explosion protection system has gas-liquid linked urgent truncated system; pressure drop signal caused by explosion is transmitted through many Grade using multiple valves and energy storage canister, change, amplified; sufficiently large thrust is formed, promotes hydraulic drive to drive ball valve to block runner.The knot Ju of this pipe explosion protection system is complicated, and pressure drop signal transmission circuit is long, it is necessary to which the closing that could realize pipeline by means of applied forces such as energy storage canisters is protected.
The pipeline of trandfer fluid, especially has dielectric deposition and has the pipeline of wall erosion overburden, it is necessary to which the wiper that passed through in pipeline is cleared up pipeline to recover the conveying capacity of pipeline.Because wiper must be good fit with pore aperture, therefore under normal circumstances, wiper can pass through in fluid line when valve is placed in height-rise state and pipeline is cleaned.Technical solution
In consideration of it, can be closed valve self-operated type using the fluid in pipeline when pipeline is leaked because of explosion it is an object of the invention to provide a kind of, and the through ball type pipeline explosion Bao Hu Installed that rely on oneself for the wiper that can pass through are put.
To achieve the above object, the invention provides a kind of Self-operated pipe explosion protection device, including：
Main valve and the first controller opened and closed for control bound, the main valve have the valve body connected with fluid hose, configure the main valve plug in valve body and the main valve stem being connected with the main valve plug；First controller includes：
First piston formula hydraulic control cylinder, the control-rod being connected with the control piston being arranged in the hydraulic cylinder body is connected with the main valve Defend transmission, for the linear reciprocation movement of the piston to be converted into institute
State the keying campaign of main valve plug；The cylinder chamber of the first hydraulic cylinder is separated into the first chamber and the second chamber by the piston, being equiped with first chamber makes the back-moving spring of the control piston reset, second chamber is formed with the first cylinder mouthful for discharging fluid therein, and control valve sets the discharge for being used for controlling the fluid in the second chamber via first cylinder mouthful；
Flow sensor, flow velocity to sense fluid in the fluid hose, and according to the flow control of fluid in the fluid hose fluid hose and the chamber of hydraulic cylinder second connection or disconnection, when the flow velocity of fluid is more than a flow speed value set in advance, the flow sensor connects the fluid hose with the second chamber of the hydraulic cylinder；The flow sensor can be moved between the first position in fluid hose and the second place removed from fluid hose；And
The Self-operated pipe explosion protection device also includes the control device to control the flow sensor movement.
Preferably, the flow sensor includes induced current pipe and the flow control pipe connected through valve seat with induced current pipe, the valve element coordinated with valve seat in opening and closing is provided with induced current pipe and makes the back-moving spring of valve core reset, the configuration of induced current pipe is communicated in fluid hose and with the runner of fluid hose, flow control pipe is connected with second chamber of the hydraulic cylinder, fluid flow velocity more than a flow speed value inch set in advance, the valve element is in opening with valve seat
Preferably, the flow sensor is arranged in main valve plug, and the flow control pipe of the flow sensor extends through tubular main valve stem along axis and can moved relative to the main valve stem.
Preferably, also include storage cylinder pressure, the chamber of second hydraulic cylinder second is formed with the second cylinder mouthful, storage cylinder pressure is connected with flow control pipe and connected via second cylinder mouthful with second chamber of first hydraulic cylinder, air bag is equiped with storage cylinder pressure, reversely damping regulating valve is provided with connecting path of the chamber of first hydraulic cylinder second with storage cylinder pressure.
Preferably, one the 3rd cylinder mouthful is formed with the chamber of first hydraulic cylinder first, 3rd cylinder mouthful is connected with fluid hose, reversely damping regulating valve or magnetic valve are arranged in the 3rd cylinder mouthful or connected the 3rd cylinder mouthful and on the pipeline of fluid hose, the induced current pipe is located at the substantial middle position of fluid hose.
Preferably, first cylinder mouthful is connected via pipeline with fluid hose.
Preferably, the control valve is a magnetic valve or hand-operated valve.
Preferably, the streamline of induced current pipe fluid along along fluid hose sets and is connected with flow control pipe in T fonts.
Preferably, rack is formed with the control-rod of the first hydraulic cylinder, the rack is meshed with the gear on the main valve stem of the main valve.
Preferably, the control device to control the flow sensor movement includes：Second hydraulic cylinder, it includes the piston rod for configuring the piston in second hydraulic cylinder cylinder body and being connected with piston, and the piston rod is with going back flow sensor drive connection, to drive flow sensor to move flow sensor；Straight way valve, the straight way valve configuration is on connection fluid hose and the pipeline of second hydraulic cylinder；And second controller, for controlling current valve events so as to moving back and forth using the pressure fluid control second hydraulic cylinder piston in fluid hose.
Preferably, the straight way valve is used to control the connection between two chambers separated by piston of second hydraulic cylinder and fluid hose and air, current valve core can enter its second operating position by starting second controller, when current valve core is located on second operating position, fluid hose is connected with the chamber of hydraulic cylinder first, and the second chamber and atmosphere；Its first operating position can be returned to by disabling second controller with the current valve core of inch, when current valve core is located on first operating position, fluid hose is connected with the chamber of second hydraulic cylinder second, and the first chamber and atmosphere.
Preferably, the second controller includes the current valve rod being connected with the valve element of straight way valve, when current valve core is located on its second operating position, one end away from current valve core of current valve rod is stretched into fluid hose, and the wiper being arranged so that in advancing can extrapolate current valve rod and current valve core is moved into its first operating position；The controller also includes operating the fluid power being connected to keep cylinder with straight way valve and resetting valve, resets the downstream Side that valve is arranged on straight way valve；The valve element for resetting valve is connected with a reset valve rod, reset valve element and be biased in together with valve rod is resetted by a spring on its first operating position, on first operating position, one end away from reset valve core of reset valve rod is stretched into fluid hose, and the wiper being arranged so that in advancing can overcome the bias of spring and extrapolate reset valve rod reset valve core is switched into its second operating position；When current valve core is extrapolated to its second operating position by wiper, second controller is activated, and fluid power keeps cylinder to be connected via reset valve and straight way valve with fluid hose, current valve core is maintained on its second operating position；And inch on its second operating position is extrapolated to by wiper resetting valve, controller is deactivated, and fluid power keeps cylinder to return to its first operating position via valve and current wealthy and atmosphere, the wealthy core of straight way valve is resetted.
Preferably, the straight way valve is one or two position four-way valve, and the reset valve is a two-position three-way valve.Preferably, the pipeline between the second hydraulic cylinder and straight way valve is provided with Bidirectional adjusting valve.
Preferably, the piston rod of the second hydraulic cylinder couples and tubular integral with flow control with the flow control pipe coaxial line of flow sensor.
Preferably, the first chamber of the first hydraulic cylinder is formed with one the 3rd cylinder mouthful ' the 3rd cylinder mouthful and connected via pipeline with the second chamber of second hydraulic cylinder, the 3rd cylinder mouthful damping regulation equipped with magnetic valve or reversely
Valve.
The main valve can be can the pass through valve of wiper, such as ball valve, ffl plate valves；It can also be the valve for the current wiper of energy that the present inventor has applied for a patent.
The Shang Shu Jie Ju of the present invention, make it have following advantage and effect.
First, flow sensor and master cylinder Jie Ju of the invention; utilize pipe explosion failure; fluid leakage cause the flow velocity of fluid in fluid hose drastically change and flow sensor induced current pipe two ends produce kinetic energy it is poor; reach the induced current pipe in flow sensor; promote valve element; make to change into opening with valve seat in the valve element of normally off; fluid enters master cylinder from induced current pipe through valve seat, flow control pipe; promote control piston; it is driven through control-rod, main valve stem and closes main valve; pipeline is turned off, so as to protect pipeline, prevent a large amount of fluid leakage losses；When induced current pipe two ends kinetic energy balancing, valve element resets under the action of the spring, and it is in closed mode that valve element resets with valve seat, and master cylinder resets after failture evacuation, and transmission main valve resets, so as to realize the control to main valve.The present invention have the advantages that using fluid dynamic energy rely on oneself control bound protect fluid line；Especially because flow sensor can receive the fluid dynamic energy change of main valve front and back and have the advantages that without manual operation.
2nd, the hydraulic cylinder Jie Ju being connected with flow sensor transmission of the invention, with the straight way valve Jie Ju for connecting hydraulic cylinder and fluid hose, pressure fluid in fluid hose can be sent into and discharge hydraulic cylinder by its hydraulic cylinder and straight way valve, utilize the kinetic energy driving hydraulic cylinder motion of fluid itself, manipulate flow sensor to make to enter working position and exit the elevating movement of working position, make pipeline unimpeded in main valve standard-sized sheet inch；Straight way valve have fluid power keep cylinder and reset valve controller Jie Ju, flow sensor is maintained at and exit working position state, thus have the advantages that ensure wiper it is smooth by.
3rd, the integral structure being arranged on flow sensor in the runner of the main valve plug of main valve of the invention, the Zu He Jie Ju being connected with the piston with hydraulic cylinder, not only have the advantages that to enable wiper smooth by, it is and small with overall volume, be easy to the advantage installed on pipeline.Qi Nang Jie Ju in loaded cylinder, enter stored energy when fluid dynamic energy is larger for the previous period of master cylinder through loaded cylinder in fluid, and the endpiece time is closed in main valve, and the smaller inch of fluid dynamic energy releases energy, and reliable advantage is closed with main valve.
, the present invention master cylinder cylinder mouthful reverse damping Tiao section Fa Jie Ju, with inch effect is prolonged, to keep the current state of main valve.The liter of main valve can be kept to open state or closed mode.The master cylinder cylinder mouthful and its magnetic valve Jie Ju of the present invention, the controller of magnetic valve can be made distantly located, therefore the hand control valve Jie Ju of remote control master cylinder cylinder mouthful can be realized on the basis of self-operated type, can be after main valve be closed by flow sensor and master cylinder self-operated type, the hand control valve of cylinder mouthful is opened using artificial formula, main valve and master cylinder is resetted.The Bidirectional adjusting valve Jie Ju on pipeline between the hydraulic cylinder and straight way valve of the present invention, energy
Regulation is sent into, the flow of the fluid of discharge hydraulic cylinder, so as to have the advantages that adjustment flow sensor enters and exited the fast jogging speed of working position.
5th, the control-rod of master cylinder of the invention couples with main valve stem in rack pinion, with advantage simple in construction, reliable.The brief description of accompanying drawing
The present invention is described in further detail with reference to the accompanying drawings and examples, wherein
Fig. 1 is the first embodiment Jie Ju schematic diagrames of Self-operated pipe explosion protection device of the present invention, it is shown that flow sensor opens the state that initial and master cylinder not yet acts inch；
Fig. 2 is analogous to Fig. 1 view, it is shown that state when being cleaned with wiper fluid delivery pipeline；
Fig. 3 is the second embodiment Jie Ju schematic diagrames of Self-operated pipe explosion protection device of the present invention, and wherein flow sensor is installed in main valve.The detailed description of preferred embodiment
Embodiment 1
As illustrated in fig. 1 and 2, the power through ball type pipe explosion protection device of first embodiment of the invention by main valve and Kong Zhuan Zhi Ju into.Control device by master cylinder 4, storage cylinder pressure 16, flow sensor 18, hydraulic cylinder 25, straight way valve 29 and Kong Qi Ju into, controller to control straight way valve and by fluid power keep cylinder 43, reset the Deng Ju of valve 48 into.Main valve is installed in fluid line, and flow sensor 18, straight way valve 29 and reset valve 48 are packed in the adapter of a suitable length, and adapter is connected with main valve and matched with fluid line and the part as fluid hose.Hydraulic cylinder 25 is stacked in the top of storage cylinder pressure 16, and master cylinder 4 is configured in the Side of hydraulic cylinder one, and fluid power keeps cylinder 43 to be stacked in above straight way valve.
Main valve 1 is turned in fluid hose 2 with common Jie Ju, and there is the main valve plug in the valve body in usual cavity shape, valve body to be connected with main valve stem 3.There can be bonnet in the upper end of valve body, valve body can use common integral type Jie Ju with bonnet, it would however also be possible to employ common flange form Lian Jie Jie Ju.Jie Ju can be connected firmly using common between main valve stem 3 and main valve plug, this Zhong Jie Ju valve can be ball valve etc.；Common rotary Jie Jie Ju can also be used, corresponding main valve plug is reciprocating motion type Jie Ju, and this Zhong Jie Ju valve can be the valve of the current wiper of the energy of gate valve, slide valve etc. or the present inventor.
Master cylinder 4 is a traditional round cylindrical hydraulic cylinder.There is Tong Chang Jie Ju cylinder in the cylinder body of master cylinder
The control piston 5 of shape, is provided with for making the helical spring 6 of control piston reset in the cylinder chamber of control piston left end.Rack 8 is made in the projecting end for the control-rod 7 being connected with control piston.The right-hand member of master cylinder has cylinder mouthful 9 and cylinder mouthful 10, and left end has cylinder mouthful 11.Cylinder mouthful 9 is equipped with common reverse damping regulating valve, and 60 is connected by the road with storage cylinder pressure 16.Cylinder mouthful 10 is equipped with common magnetic valve, and 12 is connected by the road with fluid hose 2.Cylinder mouthful 11 is equipped with common magnetic valve or reversely damps regulating valve.The valve of above-mentioned each cylinder mouthful can also change the outfit into hand-operated valve such as hand sluice valve.Master cylinder 4 is in be placed in horizontally above main valve, and is solidly fixed with Tong Chang Jie Ju with hydraulic cylinder.The control-rod 7 and main valve stem 3 being connected with control piston are perpendicular, and the gear 13 being meshed with rack 8 is fixedly mounted with main valve stem.So as to which main valve stem 3 can rotate with the reciprocating motion of control-rod 7.
Pedestal 14 is fixed with the appropriate position of fluid hose 2, the pedestal that can be made into suitable shape is connected in outside fluid hose, its bottom is formed with cavity 15, the shape of the opening of the shapes of four chambers 15 with being formed on fluid hose matches.The middle part of pedestal 14 is formed with the pore for being communicated with chamber and being used to be equipped with flow control pipe 20.
Storage cylinder pressure 16 can be made circle tube tank body, and be stacked on pedestal and with pedestal Cheng mono- Ti Jie Ju, the cylinder chamber of storage cylinder pressure communicates with the pore of pedestal.The air bag 17 of common interior inflatable body is housed in the cylinder chamber of storage cylinder pressure.Store up the cylinder mouth of cylinder pressure by the road 60 with the cylinder mouthfuls 9 of master cylinder connect ' so as to which Chu Ya Red 16 are interconnected with master cylinder 4.
Flow sensor 18 is a T-shaped Guan Zhuan Jie Ju, the induced current pipe 19 with a tubular extended along fluid direction tube, and vertical with induced current pipe communicates the tubular flow control pipes 20 of Round.Induced current pipe 19 is arranged on fluid tube hub and axially communicated with fluid hose, the top of flow control pipe 20 is solid cylinder, mutually passed through in two cylindrical holes with the joint portion of flow control pipe in induced current pipe and connect the valve seat 21 to be formed, be provided with induced current pipe slideably with valve seat in the cylindrical valve element 22 for opening and closing cooperation.Respectively there is a spiral shape back-moving spring 23 in two Side of valve element 22 in induced current pipe, so that flow sensor has the two-way induced current function of aligning counter fluid.Back-moving spring 23 only can also be installed in the side of valve element, this Zhong Jie Ju flow sensor has unidirectional induced current function.The induced current pipe of flow sensor] 9 it is installed in fluid hose 2, it is preferably disposed on streamline center, flow control pipe 20 extend up through fluid hose, the cavity 15 of pedestal and pore and stretch into storage cylinder pressure 16 cylinder chamber, the solid cylinder portion of flow control pipe 20 extends upward through storage cylinder pressure again.Install common seal to prevent fluid leakage between the cylinder shell of flow control pipe and pedestal pore and storage cylinder pressure.The elongated through hole 24 extended along flow control pipe axis communicated with the tube chamber of flow control pipe is formed with the tube wall of flow control pipe 20, in flow control pipe with the up and down motion inch of flow sensor 18, the storage via through holes 24 of cylinder pressure 16 should be kept to be communicated with flow control pipe, so that flow control pipe 20 is connected through storing up cylinder pressure 16 with master cylinder 4.
Hydraulic cylinder 25 is traditional round cylindrical hydraulic cylinder, and the hydraulic cylinder is placed on storage cylinder pressure and is made with storing up cylinder pressure 16 into a body knot Ju.Piston 26 in hydraulic cylinder is connected with the solid cylinder portion of the flow control pipe 20 of flow sensor 18, and flow control pipe is not attached to lead to hydraulic cylinder.It below the pistons of epicoele 27 is cavity of resorption 28 that the top of piston 26, which is, in hydraulic cylinder.Cylinder mouthful is formed with the epicoele and cavity of resorption of hydraulic cylinder.The Side portions of hydraulic cylinder are solidly fixed with master cylinder 4.
Straight way valve 29 is one or two multiway cock valves, with a barrel-type casing and cylindrical spool 34 reciprocating in the housing, on the fluid hose 2 for being placed in the upstream Side of main valve 1.An epicoele interface 30, a cavity of resorption interface 31, a fluid interface tube 32 and an air interface 33 are formed with current valve chest.Current valve element 34 and the current valve rod 35 of circular bar shape in housing are connected firmly, and appropriate depth in fluid hose is stretched into the lower end of current valve rod 35, and installing into enables the wiper 58 of traveling to promote current valve rod so as to current valve element 34.Close envelope knot Ju should be set between current valve rod 35 and fluid hose 2.It is formed with current valve element 34 when it is placed in current valve insertion top, can turn on the walkway 36 of cavity of resorption interface 31 and fluid interface tube 32, and epicoele interface 30 and the pressure releasing passages 37 of air interface 33 are connected with inch energy;It is also formed with, when it is placed in current valve insertion bottom, can turn on the reset road 38 of epicoele interface 30 and fluid interface tube 32, and can turn on the pressure releasing passages 39 of cavity of resorption interface 31 and air interface 33 simultaneously on current valve element 34.Epicoele interface 30 is connected with pipeline 40 with the epicoele 27 of hydraulic cylinder 25 and the cylinder mouthful 11 of master cylinder 4.Cavity of resorption interface 31 is connected with the cavity of resorption 28 of pipeline 41 and hydraulic cylinder.Fluid interface tube 32 is connected with fluid hose 2 by the road, and air interface 33 can be connected with air by the road or reservoir 42 is set below pipeline, so that can be by hydraulic cylinder 25 and fluid hose or atmosphere with straight way valve.Bidirectional adjusting valve can be installed respectively on the epicoele of hydraulic cylinder and the cylinder mouthful of cavity of resorption or corresponding pipeline.Bidirectional adjusting valve can select the adjustable differential flow shuttle valve of existing the present inventor, for adjusting the flow of the forward and reverse fluid in pipeline.Straight way valve Jie Ju can also be two multiple-way valves that valve element rotates, during using such a Jie Ju, should be accordingly using common valve element transmission Jie Ju.
Fluid power keeps the piston hydraulic cylinder structure that cylinder 43 is traditional round tubular, is stacked in the top of straight way valve 29 and integrally ties Ju, and the two shares a housing and separated with dividing plate 44.Fluid power keeps cylinder 43 and straight way valve 29 to be separate type Jie Ju.Holding piston 45 use of fluid power holding cylinder extends downwardly through the connecting rod 46 of dividing plate 44 and is connected with the current valve element 34 of straight way valve.There should be Mi Feng Jie Ju between connecting rod 46 and dividing plate 44.There is the helical spring 47 of reset in the cylinder chamber for keeping the top of piston 45.
Reset valve 48 is a two-position three way piston valve, with a barrel-type casing and cylindrical spool 49 reciprocating in the housing, on the fluid hose 2 for being placed in the upstream Side of main valve 1.Reset the reset valve of valve
Appropriate depth in fluid hose is stretched into the front end that the circular bar shape that core 49 is coupled resets valve rod 50, and installing into enables the wiper 58 of traveling to promote reset valve rod 50 to reset valve element 49.Mi Feng Jie Ju should be set between valve rod 50 and fluid hose resetting.It is formed with the bottom for resetting valve chest with resetting the atmospheric air port 51 that the valve pocket below valve element is communicated, top is formed with resetting the cylinder mouth 52 that the valve pocket above valve element is communicated, and middle part is formed with when being placed in bottom in reset valve element and closing atmospheric air port 51 through resetting the valve pocket above valve element with the connection of cylinder mouthful 52 when reset valve element is placed in middle part and closes cylinder mouthful 52 through resetting the valve pocket below valve element and the cylinder mouthful 53 of the connection of atmospheric air port 51.Cylinder mouthful 52 is connected with the cavity of resorption 28 of pipeline 54 and hydraulic cylinder 25, and the cavity of resorption interface 31 that cylinder mouthful 52 can also be with pipeline 54 directly with straight way valve 29 is connected.Cylinder mouthful 53 keeps the cylinder chamber for keeping the lower section of piston 45 of cylinder 43 to connect with pipeline 55 and fluid power.There is the helical spring 56 of reset in the valve pocket of the top of reset valve element 49 of valve 48 is resetted.The lower section of atmospheric air port 51 can have reservoir 57.
The protection device Te Do of present invention pipe explosion leakage inch self-operated types suitable for the pipeline in long-distance trandfer fluid close fluid hose；The wiper 58 that passed through when fluid pipe line is cleaned is particularly suitable for use in inch.
Working condition inch of the protection device of the present invention in trandfer fluid; main valve 1 is in full-gear; the valve element 22 of flow sensor 18 is that flow sensor is closed in closure cooperation with valve seat 21; the right part that control piston 5 in master cylinder 4 is placed in cylinder body; the magnetic valve of the Red mouths 10 of master cylinder 4 is in mouthful 10 closings of closed mode, i.e. cylinder.
The protection device of the present invention is in the working condition in trandfer fluid, and the fluid power that the current valve element 34 of straight way valve 29 is connected with through connecting rod 46 keeps the holding piston 45 in cylinder 43 to be placed in the bottom of respective housing cavity.Current valve rod 35 stretches into appropriate depth in fluid hose 2, reset road 38 on current valve element connects fluid interface tube 32 with epicoele interface 30, so as to which fluid hose 2 be connected through straight way valve, pipeline 40 with the epicoele 27 of hydraulic cylinder 25, make the pressure of hydraulic cylinder epicoele roughly the same with fluid pipe pressure；Pressure releasing passages 39 connect cavity of resorption interface 31 with air interface 33, so as to 41 connect the cavity of resorption 28 of hydraulic cylinder with ambient atmosphere by the road, the pressure in cavity of resorption is more than the pressure of cavity of resorption 28 for atmospheric pressure, the i.e. pressure of epicoele 27.The wealthy core 49 of reset for resetting valve 48 is placed in the bottom of its housing cavity, resets valve rod 50 and stretches into appropriate depth in fluid hose 2.Reset the valve pocket above valve element keeps the cylinder chamber of the lower section of holding piston 45 of cylinder 43 to connect through cylinder mouthful 52 and cylinder mouthful 53 with the cavity of resorption 28 and fluid power of hydraulic cylinder respectively.The valve element 22 of flow sensor 18 coordinates with valve seat 21 in closure, i.e., flow sensor is closed.The right-hand member cylinder mouthful 9 of master cylinder 4 is because flow sensor is closed and closes, and cylinder mouthful 10 is closed；The cylinder of left end mouthful 11 by the road 40, straight way valve reset the fluid connected with fluid hose 2 in fluid hose in road 38 through straight way valve
29 fluid interface tube 32, reset road 38, epicoele interface 30 and enter pipeline 40, the fluid into pipeline 40 is then divided into two-way：Cylinder mouthful all the way through hydraulic cylinder 25 enters epicoele 27, piston 26 is placed in the bottom of hydraulic cylinder, so as to ensure that the induced current pipe 19 of flow sensor 18 is located at the streamline center of fluid hose；Another path cylinder mouthful 11 enters the left end cylinder chamber of master cylinder 4, the right part for making control piston 5 be placed in cylinder body, it is ensured that main valve 1 is in full-gear.
When fluid hose is leaked because of explosion, the flow velocity of fluid increased dramatically in fluid hose, the valve element 22 in high velocity fluid strikes flow sensor.The fluid hose explosion leakage of the forward flow of fluid either from left to right in fluid hose 2, still reverse flow from right to left, the either right-hand member of main valve 1, or the fluid hose explosion of main valve left end are leaked, and Bao Hu Installed, which are put, can realize the protection of pipeline.When fluid forward flow, high-velocity fluid enters flow sensor 18 from left end, promotes valve element 22 to move to right, the right Side of Bing Ya Shrink valve elements back-moving spring 23;When reverse fluid flow, high-velocity fluid enters flow sensor 18 from right-hand member, promotes valve element 20 to move to left, the left Side of Bing Ya Shrink valve elements back-moving spring 23.The high-velocity fluid of above-mentioned both forward and reverse directions can make valve element and valve seat in opening i.e. so that flow sensor 18 is opened.Fluid enters storage cylinder pressure 16 through induced current pipe 19, valve seat 21, flow control pipe 20 and compresses the air bag 17 in storage cylinder pressure, into storage cylinder pressure fluid again by the road 60, the cylinder mouthful 9 of master cylinder enter the right-hand member cylinder chamber of master cylinder 4；Simultaneously because the kinetic energy of the fluid of streamline central part is more than the kinetic energy of border fluid in fluid hose, so as to control left lateral and to press Shrink springs 6 under fluid pressure difference effect of the piston 5 in right cylinder cylinder chamber and left cylinder cylinder chamber, therefore reset road 38 of the fluid in the left end cylinder chamber of master cylinder 4 through cylinder mouthful 11, pipeline 40, straight way valve 29 is discharged into fluid hose 2.As a result, control-rod 7 is with the control left lateral of piston 5, and main valve 1 is closed so as to which main valve stem 3 is rotated through the drive gear 13 of rack 8 on control-rod.In the closing process of main valve, flow velocity and pressure are gradually reduced in fluid hose, and the valve element 22 of flow sensor 18 is progressively closed off in the presence of back-moving spring 23.When the pressure in storage cylinder pressure 16 and the right-hand member cylinder chamber of master cylinder 4 reduces inch; air bag 17 discharges pressure and expanded; the further Solid rocket engine piston 5 to the right by the fluid press-in master cylinder stored up in cylinder pressure; to ensure that main valve is reliably completely closed; the fluid in fluid hose is cut off, pipeline protection is realized.Now, the valve element 22 in flow sensor 18 is resetted in the presence of back-moving spring 23, and valve element 22 is closed with valve seat 21, and flow sensor 18 is closed.After pipeline is repaired, the right-hand member cylinder mouthful 10 of master cylinder is opened under the control of magnetic valve, and cylinder mouthful 9 is closed because flow sensor is closed.Control piston 5 is moved to right in the presence of back-moving spring 6, so that the fluid in the right-hand member cylinder chamber of master cylinder 4 is discharged into fluid hose 2 through cylinder mouthful 10, pipeline 12;Meanwhile, the pressure fluid in fluid hose 2 resets the left end cylinder chamber that road 38, pipeline 40, the cylinder mouthful 11 of master cylinder left end enter master cylinder 4 through straight way valve.So as to the right lateral return of control-rod 7, the reverse drive gear 13 of rack 8 on control-rod is so that main valve stem 3 is inverted, and main valve 1, which resets, to be opened until standard-sized sheet, the system is extensive
The working condition of multiple trandfer fluid, and the cylinder of master cylinder 4 mouthful 10 is closed under the control of magnetic valve.Fig. 2 shows the state cleaned with the fluid delivery pipeline of wiper 58.Current valve rod 35 is above pushed away when wiper 58 marches to the upstream Side of main valve 1 straight way valve 29 from left to right, current valve element 34 is set to rise to housing cavity top, and through connecting rod 46 makes fluid power keep the holding piston 45 of cylinder 43 to rise to the top of housing cavity.Reset road 38, pressure releasing passages 39 on current valve element 34 are cut off simultaneously, and fluid interface tube 32 and cavity of resorption interface 31 are connected in walkway 36, connect epicoele interface 30 with air interface 33 with inch pressure releasing passages 37.Fluid interface tube 32 of the pressure fluid through straight way valve, walkway 36, cavity of resorption interface 31, pipeline 41 in fluid hose 2 enter the cavity of resorption 28 of hydraulic cylinder 25, make the Fluid pressure of lower intracavitary roughly the same with the Fluid pressure in fluid hose 2；Simultaneously, the cylinder mouthful 11 of master cylinder 4 is closed under magnetic valve or reversely damping governor valve control, fluid 40, the epicoele interface 30 of straight way valve, pressure releasing passages 37, air interface 33 and ambient atmosphere connection by the road in hydraulic cylinder epicoele 27, the pressure in hydraulic cylinder epicoele 27 is set to be more than upper cavity pressure for the lower cavity pressure of atmospheric pressure, i.e. hydraulic cylinder.The reset valve rod 50 for now resetting valve 48 is still stretched into fluid hose 2, and it resets valve element 49 and is still placed in housing cavity bottom.Into hydraulic cylinder cavity of resorption 28 a small amount of pressure fluid by the road 54, valve pocket, Red mouths 53 and pipeline 55 that reset the cylinder mouthful 52 of valve, reset above valve element enter the cylinder chamber kept below piston 45 that fluid power keeps cylinder 43, make holding piston and through connecting rod 46 with keeping the current valve element 34 of straight way valve that piston be connected to be maintained at the upper position of respective housing cavity, to keep fluid hose 2 to the runner of hydraulic cylinder cavity of resorption 28 in channel status.Pressure fluid in fluid hose 2 constantly enters the cavity of resorption 28 of hydraulic cylinder, piston 26 is above pushed away and is placed in the top of hydraulic cylinder by fluid, and the flow control pipe 20 through flow sensor 18 lifts flow sensor and made in the cavity 15 that induced current pipe 19 fully enters pedestal 14, to allow the wiper of traveling is smooth to pass through, now the system is in the current state of wiper.
When wiper 58 marches to the upstream Side of main valve 1 reset valve 48, above push away reset valve rod 50, make reset valve element 49 up and compression spring 56 and make reset valve element 49 be placed in reset valve in the middle part of.Cylinder mouthfuls 52 is reset valve element blocking, and cylinder mouthful 53 is connected through resetting the valve pocket below valve element with atmospheric air port 51.Fluid power keep fluid in the cylinder chamber of the lower section of holdings piston 45 in cylinder 43 by the road 55, the cylinder mouthful 53 that resets valve, the valve pocket that resets below valve element discharge or be discharged into reservoir 57, fluid power holding cylinder pressure release from atmospheric air port 51.In the presence of spring 47, keep piston 45 is descending to reset, through connecting rod 46 drives the current valve element 34 of straight way valve 29 is descending to reset.After straight way valve 29 resets, the descending reset of piston 26 in hydraulic cylinder 25, then drive flow sensor is descending to reset by the flow control pipe 20 of flow sensor 18, and reset the also descending reset in the presence of spring 56 of valve element 49.The system recovers the working condition of trandfer fluid, and the cylinder of master cylinder mouthful 11 is opened under magnetic valve or reversely damping governor valve control.
According to the present embodiment, because the cylinder mouthful 10 of master cylinder 4 12 is connected with fluid hose 2 by the road, its particular advantage is：In the process of running, the fluid in the right-hand member cylinder chamber of master cylinder 4 is discharged into fluid hose 2 without outwardly discharging fluid, so as to avoid the outer row loss of the few fluids of fluid contamination environment , Bing Minus.Optionally, the pipeline 12 connected with the cylinder mouthful of master cylinder 4 10 can be communicated with air, or reservoir is installed additional in tube outlet, the fluid that master cylinder is discharged is discharged into reservoir.This structure is after pipeline reparation during master cylinder reset, and the pressure of master cylinder right-hand member cylinder chamber is atmospheric pressure, and makes reset relatively reliable, but has a small amount of fluid loss discharged from pipeline 12.
Embodiment 2
The second embodiment of Self-operated pipe explosion protection device of the present invention is shown in Figure 3, and its structure is substantially the same manner as Example 1, and its operation is also essentially identical.
The present embodiment Self-operated pipe explosion protection device Jie Ju features are：Flow sensor 18 is arranged in main valve 1, and storage cylinder pressure 16 and hydraulic cylinder 25 are stacked on main valve 1 and are formed integrally Jie Ju, is fixedly connected with master cylinder 4 with main valve left upper end and storage cylinder pressure using usual structure.Main valve 1 can select ball valve or butterfly valve or gate valve.During with from ball valve, at the top of the inner chamber runner of main valve plug 59 spherical in shape, the cavity 15 for the induced current pipe 19 that can accommodate flow sensor 18 is made.The main valve stem 3 of main valve is made for tubular, and the runner insertion of the tube chamber and main valve plug 59 of pipe.The flow control pipe sleeve of flow sensor sets sealing structure in the tube chamber of main valve stem and in slidably coordinating between flow control pipe and tube chamber.
Above in conjunction with drawings and examples, the invention has been described.But, professional should be appreciated that above-described embodiment is only intended to illustrate the present invention without limiting the present invention, on the premise of without departing from the spirit and scope of the present invention, can be so that various modifications and improvements can be made to the invention.Optionally, the cylinder mouthful 11 of master cylinder 4 can directly be connected by pipeline with fluid hose；In addition, master cylinder 4 can not also set cylinder mouthful 11.Alternatively, it is also possible to be not provided with storing up cylinder pressure 16, and flow control pipe 20 is set directly to be connected via the cylinder mouthful 9 of master cylinder 4 with master cylinder.
Claims (1)
- Wooden fork profit is required1. a kind of Self-operated pipe explosion protection device, including：Main valve（1) the first controller with closing, the main valve and for control bound liter are opened（1) there is the valve body connected with fluid hose (2), configure in the main valve plug of valve body ten and the main valve stem (3) being connected with the main valve plug;Characterized in that, first controller includes：First piston formula hydraulic control cylinder (4), the control-rod (7) being connected with the control piston (5) being arranged in the hydraulic cylinder body is connected with the main valve stem (3) transmission, the keying campaign for the linear reciprocation movement of the piston to be converted to the main valve plug；The cylinder chamber of the first hydraulic cylinder is separated into the back-moving spring (6) for being equiped with the first chamber and the second chamber, first chamber and resetting the control piston (5) by the piston>Second chamber is formed with the first cylinder mouthful for discharging fluid therein（10), control valve sets the discharge for being used for controlling the stream equal in the second chamber via first cylinder mouthful；Flow sensor（18), flow velocity to fluid in fluid hose described in Gan Measuring, and according to the flow control of fluid in the fluid hose fluid hose and the chamber of hydraulic cylinder second connection or disconnection, when the flow velocity of fluid is more than a flow speed value set in advance, the flow sensor connects the fluid hose with the second chamber of the hydraulic cylinder；The flow sensor（15) it can be moved between the first position in fluid hose and the second place removed from fluid hose；The Self-operated pipe explosion protection device also includes the control device to control the flow sensor movement.2. the Self-operated pipe explosion protection device according to wooden fork profit requires 1, it is characterised in that the flow sensor includes induced current pipe（19) the flow control pipe (20) and through valve seat (21) connected with induced current pipe, back-moving spring (23) induced currents pipe that the valve element (22) coordinated with valve seat in opening and closing is provided with induced current pipe and threshold core (22) is resetted is configured in fluid hose (2) and communicated with the runner of fluid hose, flow control pipe is connected with second chamber of the hydraulic cylinder, when the flow velocity of fluid is more than a flow speed value set in advance, the valve element is in opening with valve seat3. the Self-operated pipe explosion protection device according to wooden fork profit requires 2, it is characterised in that the flow sensor（18) it is arranged in main valve plug (59), the flow control pipe (20) of the flow sensor extends through tubular main valve stem (3) along axis and can moved relative to the main valve stem.4. the through ball type pipeline explosion Bao Hu Installed that rely on oneself according to wooden fork profit requires 2 are put, it is characterised in that also including storage cylinder pressure (16), the chamber of second hydraulic cylinder second is formed with the second cylinder mouthful（9), storage cylinder pressure with Flow control pipe（20) connect and via second cylinder mouthful（9) connected with second chamber of first hydraulic cylinder (4), air bag is equiped with storage cylinder pressure（17) reversely damping regulating valve, is provided with connecting path of the chamber of first hydraulic cylinder (4) second with storage cylinder pressure (16).5. the through ball type pipeline explosion Bao Hu Installed that rely on oneself according to wooden fork profit requires 2 are put, it is characterised in that one the 3rd cylinder mouthful is formed with the chamber of first hydraulic cylinder first（11), the 3rd cylinder mouthful connect with fluid hose (2), reversely damping regulating valve or magnetic valve be arranged in the 3rd cylinder mouthful or connection the 3rd cylinder mouth with the pipeline of fluid hose, the induced current pipe（19；) it is located at the substantial middle position of fluid hose (2).6. the Self-operated pipe explosion protection device according to any one of wooden fork profit requires 1-5, it is characterised in that first cylinder mouthful（10) connected via pipeline (12) with fluid hose.7. the Self-operated pipe explosion protection device according to any one of wooden fork profit requires 1-5, it is characterised in that the control valve is a magnetic valve or hand-operated valve.8. the Self-operated pipe explosion protection device according to any one of wooden fork profit requires 1-5; characterized in that, the induced current pipe ＜ 19) streamline of fluid sets and is connected in T shape with flow control pipe (20) along along fluid hose (2).9. the Self-operated pipe explosion protection device according to any one of wooden fork profit requires 1-5; it is characterized in that; rack (8) is formed with the control-rod (7) of the first hydraulic cylinder (4), the rack is with being arranged on the main valve（1) the gear (13) on main valve stem (3) is meshed.10. the Self-operated pipe explosion protection device according to wooden fork profit requires 1, it is characterised in that to control the control device of the flow sensor movement to include：Second hydraulic cylinder (25), it includes configuring piston (26) and the piston rod being connected with piston in second hydraulic cylinder cylinder body, the piston rod and the flow sensor（18) it is connected, to drive flow sensor（18) move flow sensor；Straight way valve (29), the straight way valve configuration is on connection fluid hose and the pipeline of second hydraulic cylinder；AndSecond controller, for controlling current valve events so as to moving back and forth using pressure fluid control second hydraulic cylinder piston (26) in fluid hose (2).11. the Self-operated pipe explosion protection device according to wooden fork profit requires 10; it is characterized in that; the straight way valve (29) is used for two chambers (27 separated by piston for controlling second hydraulic cylinder; 28) connection between fluid hose and air; current valve core (34) can enter its second operating position by starting second controller; it is located at inch on second operating position in current valve core; fluid hose is connected with the chamber of hydraulic cylinder first (28), and the second chamber (27) and atmosphere；Passing through valve core with inch can be by disabling the Two controllers and return to its first operating position, current valve core be located at first operating position on inch, fluid hose is connected with the chamber of second hydraulic cylinder second (27), and the first chamber (28) and atmosphere.12. Self-operated pipe explosion protection device according to claim 11; it is characterized in that; the second controller includes the current valve rod (35) being connected with the valve element of straight way valve; when current valve core is located on its second operating position; one end away from current valve core of current valve rod is stretched into fluid hose (2), and the wiper being arranged so that in advancing（58) it can extrapolate and pass through valve rod and current valve core is moved into its first operating position；The controller also includes operating the fluid power being connected to keep cylinder (43) with straight way valve (29) and resetting valve (48), resets the downstream Side that valve is arranged on straight way valve；The valve element (49) for resetting wealthy (48) is connected with a reset valve rod (50), reset valve element (49) and be biased in together with valve rod is resetted by a spring (56) on its first operating position, on first operating position, one end away from reset valve core of reset valve rod is stretched into fluid hose (2), and the wiper (58) being arranged so that in advancing can overcome the bias of spring and extrapolate reset valve rod reset valve core is switched into its second operating position；In current valve core（34) its second operating position inch is extrapolated to by wiper, second controller is activated, fluid power keeps cylinder (43) to be connected via reset valve and straight way valve with fluid hose (2), current valve core is maintained on its second operating position；And when reset valve (48) is extrapolated to by wiper on its second operating position, controller is deactivated, fluid power keeps cylinder (43) to return to its first operating position via valve and straight way valve and atmosphere, current valve core is resetted.13. the Self-operated pipe explosion protection device according to wooden fork profit requires 12, it is characterised in that the straight way valve（29) it is one or two position four-way valve, and the reset valve is a two-position three-way valve.14. the Self-operated pipe explosion protection device according to wooden fork profit requires 11, it is characterised in that the pipeline (40,41) between the second hydraulic cylinder (25) and straight way valve (29) is provided with Bidirectional adjusting valve.15. the Self-operated pipe explosion protection device according to wooden fork profit requires 10, it is characterised in that the piston rod and flow sensor of the second hydraulic cylinder (25)（18) flow control pipe (20) coaxial line couples and tubular integral with flow control.16. the Self-operated pipe explosion protection device according to wooden fork profit requires 11, it is characterised in that the first chamber of the first hydraulic cylinder (4) is formed with one the 3rd cylinder mouthful（11) cylinder of ' the 3rd mouthful is connected via pipeline with the second chamber (27) of second hydraulic cylinder, the 3rd cylinder mouthful（11) it is wealthy or reversely damp regulating valve equipped with electromagnetism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB018072291A CN1148524C (en) | 2000-03-27 | 2001-02-22 | A pipe burst protect device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00112796.9 | 2000-03-27 | ||
| CN00112796 | 2000-03-27 | ||
| CNB018072291A CN1148524C (en) | 2000-03-27 | 2001-02-22 | A pipe burst protect device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1419643A true CN1419643A (en) | 2003-05-21 |
| CN1148524C CN1148524C (en) | 2004-05-05 |
Family
ID=4582632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018072291A Expired - Fee Related CN1148524C (en) | 2000-03-27 | 2001-02-22 | A pipe burst protect device |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1148524C (en) |
| AU (1) | AU3909501A (en) |
| WO (1) | WO2001075356A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101636614B (en) * | 2006-12-21 | 2013-02-06 | 珀莱克垂克国际私人有限公司 | A multiple valve assembly for reducing water loss from a leak |
| CN106979372A (en) * | 2015-10-02 | 2017-07-25 | 费希尔控制产品国际有限公司 | Flow control valve with movement transforming device |
| CN112066130A (en) * | 2020-09-11 | 2020-12-11 | 马艺卓 | Internal impact relieving mechanism of pipeline steering joint |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691734B (en) * | 2012-02-10 | 2014-09-24 | 陈学福 | Transmission shaft structure |
| CN112503287B (en) * | 2020-11-27 | 2023-06-27 | 江苏盐阜电站阀门辅机制造有限公司 | Muffler for temperature and pressure reducing valve |
| CN113953074B (en) * | 2021-10-22 | 2022-09-30 | 福州大学 | Explosion pressure release compensating device |
| CN115355339B (en) * | 2022-10-19 | 2023-01-13 | 潍坊市凯隆机械有限公司 | Automatic pressure relief device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2541734C2 (en) * | 1975-09-19 | 1985-04-18 | P.D. Rasspe Söhne, 5650 Solingen | Pipe rupture safety device |
| CN1024040C (en) * | 1989-05-02 | 1994-03-16 | 褚志富 | Protective system for power station pressure pipes blasting |
| EP0559993A1 (en) * | 1992-03-09 | 1993-09-15 | Ente Nazionale Per L'energia Elettrica - (Enel) | A system for the detection of a sudden rupture in a pipe through which a liquid is flowing under pressure. |
| CN2175403Y (en) * | 1993-12-11 | 1994-08-24 | 曾祥炜 | Shuttle like device for protection of blasting in pipe line |
-
2001
- 2001-02-22 WO PCT/CN2001/000138 patent/WO2001075356A1/en active Application Filing
- 2001-02-22 AU AU39095/01A patent/AU3909501A/en not_active Abandoned
- 2001-02-22 CN CNB018072291A patent/CN1148524C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101636614B (en) * | 2006-12-21 | 2013-02-06 | 珀莱克垂克国际私人有限公司 | A multiple valve assembly for reducing water loss from a leak |
| CN106979372A (en) * | 2015-10-02 | 2017-07-25 | 费希尔控制产品国际有限公司 | Flow control valve with movement transforming device |
| CN106979372B (en) * | 2015-10-02 | 2020-08-07 | 费希尔控制产品国际有限公司 | Flow control valve with motion conversion device |
| CN112066130A (en) * | 2020-09-11 | 2020-12-11 | 马艺卓 | Internal impact relieving mechanism of pipeline steering joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1148524C (en) | 2004-05-05 |
| WO2001075356A1 (en) | 2001-10-11 |
| AU3909501A (en) | 2001-10-15 |
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