CN108953638A - Self-operated type dual control point quick action emergency valve - Google Patents
Self-operated type dual control point quick action emergency valve Download PDFInfo
- Publication number
- CN108953638A CN108953638A CN201810666330.2A CN201810666330A CN108953638A CN 108953638 A CN108953638 A CN 108953638A CN 201810666330 A CN201810666330 A CN 201810666330A CN 108953638 A CN108953638 A CN 108953638A
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- rod
- block
- valve
- driving lever
- mechanism shell
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/48—Attaching valve members to screw-spindles
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a kind of self-operated type dual control point quick action emergency valves, including valve body, if valve deck and runner, operating mechanism shell is equipped with low pressure bellows, high pressure bellows with bellows is isolated, isolation cavity of resorption is connected to runner, isolation epicoele is connected to low pressure epicoele and high pressure epicoele respectively, operating mechanism shell is equipped with balance block, the feeler lever for extending into balance block is equipped on left adjustment block and right adjustment block, when left adjustment block or right adjustment block disequilibrium, feeler lever can trigger balance block and rotate, operating mechanism shell is equipped with operating shaft, tripping mechanism is equipped between operating shaft and driving lever, when tripping mechanism limits driving lever, it is separated between spool and valve seat, operating shaft is equipped with the control-rod being embedded into balance block, when balance block rotates, control-rod is detached from balance block and realizes driving lever and operation Disengaging between axis.The present invention has the following advantages and effects: the present invention is able to achieve the control of two point pressure.
Description
Technical field
The present invention relates to a kind of valve, in particular to a kind of self-operated type dual control point quick action emergency valve.
Background technique
Stop valve is one kind of executing agency in automated system, by multiple springs pneumatic diaphragn actuating mechanism or floating type work
It fills in executing agency and regulating valve forms, receive the signal of regulation meter, control the cutting of fluid in process pipe, connect or cut
It changes.It is simple with structure, it is quick on the draw, the features such as reliable in action.It is raw that the industry such as petroleum, chemical industry, metallurgy can be widely used in
Production department.
Notification number is that the Chinese patent of CN107631043A discloses a kind of angle switched for controlling high-temperature, high pressure fluid
A seating stop valve, including the valve rod in angled seat formula valve body, insertion valve body, the lower end of valve rod is equipped with spool, is provided in valve body
With the valve core case of spool cooperation, spool contacts the closing to form stop valve with valve core case, and spool separates to form cutting with valve core case
The unlatching of valve；And driving stem drives valve core movement, by matching relationship between change spool and valve core case to realize cutting
Valve is opening or closing the drive part switched between state, in drive part removably connection and angled seat formula valve body.
It is threaded with support guide pipe on angled seat formula valve body in above-mentioned patent, lid is fixedly installed on support guide pipe
Body, be fixed on lid it is internal be cavity shell；Piston equipped with driving stem movement in cavity, cavity is interior to be located at piston
Top be equipped with elastic component, inlet port is provided with below piston.Elastic both pressure set points of elastic component, work as inlet port
Pressure when being greater than the set value, valve is in the open state；Conversely, being then in close state.Due to this kind of valve only one
Setting value causes this kind of valve that can also control within the pressure limit of safety so that the regulative mode of the valve is Set-value adjustment
The opening and closing of valve processed, to influence the practicability of valve.
Summary of the invention
The object of the present invention is to provide a kind of self-operated type dual control point quick action emergency valve, the self-operated type dual control point quick action emergency valves
In the pressure limit of safety will not the opening and closing of control valve just understand control valve only when pressure exceeds safe range
Opening and closing, to promote the practicality.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of self-operated type dual control point is urgent
Stop valve including valve body, is set to the valve deck of valve body and is fixedly arranged on the runner of valve inner, is installed with valve on the runner
, valve rod is installed on the valve deck, spool is installed on the valve rod, driving seal spool valve seat is arranged on the valve rod
Compressed spring, be installed with operating mechanism shell above the valve deck, sliding is equipped with band on the operating mechanism shell
The mobile driving lever of ovable valve stem, is installed with the sleeve for driving lever sliding on the operating mechanism shell, the sleeve and actively
It is equipped with the driving driving lever one-way drive mechanism mobile back to valve rod direction between bar, is located at driving lever on operating mechanism shell
Two sides are installed with low pressure bellows and high pressure bellows respectively, are installed in the low pressure bellows low pressure bellows inner cavity being separated into low pressure
It is fixed in the low pressure diaphragm of epicoele and low pressure cavity of resorption, high pressure bellows and high pressure bellows inner cavity is separated into high pressure epicoele and high pressure
The high pressure diaphragm of cavity of resorption is equipped with isolation bellows positioned at the side of the operating mechanism shell, be installed in the isolation bellows by
Isolation bellows inner cavity is separated into isolation epicoele and the isolation diaphragm of cavity of resorption is isolated, and the isolation cavity of resorption and runner pass through inlet manifold
Connection, isolation epicoele are connected to low pressure epicoele and high pressure epicoele respectively by air intake branch；
Wearing sliding immediately below low-pressure membrane box on the operating mechanism shell has left push rod, and the upper end of the left push rod is worn
If sliding sealing into low pressure cavity of resorption and between low pressure bellows, the operating mechanism shell is between driving lever and left push rod
Position be equipped with left push rod left adjusting screw rod disposed in parallel, rotation, which is equipped with, on the operating mechanism shell is located at left adjusting screw rod
The left adjustment block of lower section, the left adjustment block contradict, close to the upper surface of one end and the lower end of left push rod close to another
The upper surface of one end and the lower end of left adjusting screw rod contradict, and it is left that driving is equipped between the operating mechanism shell and left adjusting screw rod
Adjust the bolt low pressure spring mobile towards left adjustment Block direction；
Wearing sliding immediately below high-pressure membrane box on the operating mechanism shell has right push rod, and the upper end of the right push rod is worn
If sliding sealing into high pressure chamber and between high pressure bellows, the operating mechanism shell is between driving lever and right push rod
Position be equipped with right push rod right adjusting screw rod disposed in parallel, rotation, which is equipped with, on the operating mechanism shell is located at right adjusting screw rod
The right adjustment block of lower section, the right adjustment block contradict, close to the upper surface of one end and the lower end of right push rod close to another
The upper surface of one end and the lower end of right adjusting screw rod contradict, and it is right that driving is equipped between the operating mechanism shell and right adjusting screw rod
Adjust the bolt high pressure spring mobile towards right adjustment Block direction；
Position rotation of the operating mechanism shell between left adjustment block and right adjustment block is equipped with balance block,
The feeler lever for extending into balance block is equipped on the left adjustment block and right adjustment block, when the left adjustment block
Or when right adjustment block disequilibrium, the feeler lever can trigger balance block and rotate, on the operating mechanism shell
Rotation is equipped with operating shaft, the tripping mechanism for limiting driving lever is equipped between the operating shaft and driving lever, when the tripping
It when mechanism limits driving lever, is separated between the spool and valve seat, is installed with and is embedded into balance block and use in the operating shaft
In the control-rod of control tripping mechanism, when the balance block rotates, the control-rod disengaging balance block is simultaneously real
Disengaging between existing driving lever and operating shaft.
By using above-mentioned technical proposal, the medium in runner enters isolation cavity of resorption by inlet manifold, when under isolation
Intracavitary pressure can drive isolation diaphragm mobile towards the upper cavity direction of isolation and squeeze to the upper intracavitary gas of isolation when increasing
Pressure, to drive gas to enter low pressure epicoele and high pressure epicoele by air intake branch, and simultaneously to high pressure diaphragm and low-pressure membrane
Piece is acted；And the movement of high pressure diaphragm and low pressure diaphragm then can drive left push rod to contact at left adjustment block, the right side simultaneously
Push rod contacts at right adjustment block.
It drives driving lever mobile back to valve rod direction by one-way drive mechanism and compressed spring is compressed, driving lever
It drives valve core movement for realizing spool and the separation of valve seat between the two, keeps valve in the open state；When spool and valve seat
It limits driving lever for realizing the limit to driving lever by tripping mechanism after separating between the two and is subjected to displacement.Pass through control
Bar is embedded into balance block for realizing the control to tripping mechanism, and balance block at this time is in equilibrium state.
Low pressure spring drives left adjusting screw rod to contact at left adjustment block, is pushed away by the elastic force of a low pressure spring left side of contending with
The active force of bar, for keeping the balance of left balance adjustment block；High pressure spring drives right adjusting screw rod to contact at right adjustment
Block is contended with the active force of right push rod by the elastic force of high pressure spring, for keeping the balance of right adjustment block.
The elastic force of high pressure spring both the first setting value, the elastic force of low pressure spring both the second setting value, when medium generates
Section of the pressure value between the first setting value and the second setting value when, left adjustment block is located with right adjustment block
In equilibrium state, at this point, feeler lever will not act balance block.When pressure medium is greater than the first setting value, right adjusting
The height that balance weight is located at right push rod side reduces, thus make right adjustment block disequilibrium, and unbalanced right adjusting
Balance weight triggers balance Block rotation by feeler lever；Balance Block rotation make control-rod be detached from balance block and realize driving lever with
Disengaging between operating shaft, both tripping mechanism was in disengaged position, at this point, spool is sealed in valve under the elastic force of compressed spring
Seat, realizes the closing of valve.When pressure medium is less than the second setting value, left adjustment block is located at the side of left adjusting screw rod
Height reduces, to make left adjustment block disequilibrium, triggers valve by above-mentioned identical operation and closes.It is set by this kind
Mode is set only when pressure medium is beyond setting range, the switching motion of valve can be just triggered, to make the valve in reality
There is better practicability during use.
Be further arranged to: the balance block includes main block and the upper frizzen for being fixedly arranged on main block and lower triggering
Bar, the main block are connect by shaft with operating mechanism housing into rotation, and the upper frizzen and lower frizzen are respectively set
In shaft along its axial two sides, when the balance block is in equilibrium state, between the upper frizzen and lower frizzen
The spacing interted for feeler lever is formed, when the left adjustment block or right adjustment block are in equilibrium state, the touching
Bar wears between upper frizzen and lower frizzen and by the two and contradicts.
By using above-mentioned technical proposal, the setting of upper frizzen and lower frizzen is so that left adjustment block or right adjusting
No matter deflection on which direction, which occurs, for balance weight can drive balance block to rotate, to ensure that balance block, a left side
Linkage between adjustment block and right adjustment block three.
Be further arranged to: the tripping mechanism includes being set to the first card slot of operating shaft periphery wall and being set to
Second card slot of driving lever periphery wall, the axial direction of the operating shaft and driving lever it is axially vertical, when the periphery of the operating shaft
When wall card is set into the second card slot, the control-rod is embedded into balance block, described when the control-rod is detached from balance block
Driving lever driving operating shaft rotate and makes the periphery wall slip of driving lever into the first card slot for guaranteeing the normal cunning of driving lever
It moves.
By using above-mentioned technical proposal, when the periphery wall card of operating shaft is set into the second card slot, the bottom of the first card slot
Towards the upper side wall of the second card slot, and the axial direction of control-rod and driving lever are arranged in an axially parallel mode at this time, have both been embedded into balance weight
Body；When rotating bar moves down, the side wall of the second card slot contacts at the bottom of the first card slot and drives operating shaft along counterclockwise
Direction is rotated, and the first card slot is made to turn to the periphery wall towards driving lever, for guaranteeing the normal slip of driving lever,
This kind of mode structure is simple easy to process and at low cost.
It is further arranged to: including being set to balance block and the limiting slot that is embedded for control-rod, on the balance block
Equipped with for the angular guide surfaces in control-rod energy smooth rotation to limiting slot.
By using above-mentioned technical proposal, control-rod first contacts at angular guide surfaces during rotating into limiting slot,
The force direction for changing power by the setting of angular guide surfaces makes the active force energy band dynamic balancing block of control-rod occur to turn
It is dynamic, so that control-rod be made more smoothly to rotate into limiting slot.
Be further arranged to: the one-way drive mechanism includes being fixed on driving lever periphery wall and the tooth along its axial alignment
The handle of item, the gear for being rotatably dispose in sleeve and being engaged with rack and the rotation of sliding tooth wheel.
By using above-mentioned technical proposal, staff holds handle and rotates for sliding tooth wheel, passes through wheel and rack
Between engagement system drive driving lever to move along axial realization.
It is further arranged to: being formed with the cavity for gear axial movement in the sleeve, be equipped with driving in the cavity
The driving spring of gear disengaging rack gear.
By using above-mentioned technical proposal, driving spring drives gear far from rack gear in a free state, as master to be driven
When lever is moved, staff exerts a force to handle, so that gear rotates after being engaged in rack gear to gear；It should
Kind mode realizes the separation of wheel and rack between the two, so that driving lever on the basis of realizing that driving driving lever is mobile
It more smooth can bounce back under the action of compressed spring, to ensure that the smooth closing of valve.
Be further arranged to: the operating mechanism shell is located at the underface of left adjustment block and leans on the position of two close end
It is equipped with left adjusting bolt, the operating mechanism shell is located at the underface of right adjustment block and is all provided with by the position of two close end
There is right adjusting bolt.
By using above-mentioned technical proposal, it is left adjust bolt and the right setting for adjusting bolt be respectively used to control it is left adjust it is flat
The deflection of weighing apparatus block and right adjustment block prevents pressure medium unstable and occurs significantly to deflect.
Be further arranged to: the air intake branch is equipped with delivery pipe, and one end of the delivery pipe is equipped with pressure gauge, another
End is connected to air intake branch, and the delivery pipe is equipped with needle valve.
By using above-mentioned technical proposal, the setting of pressure gauge enables staff to be apparent from air intake branch
Pressure understands the working condition of valve；And by the setting of needle valve for controlling the opening and closing of delivery pipe, when not needing to know
It can be carried out closing under the premise of working condition, extend the service life of needle valve.
Be further arranged to: the runner include influent stream channel and be connected to influent stream channel go out circulation road, it is described
Valve seat is arranged in influent stream channel and the out position between circulation road, the influent stream channel and is communicated with emergency pipe between circulation road out
Road, the emergency pipeline are equipped with by-passing valve.
By using above-mentioned technical proposal, when the operating mechanism of valve breaks down, pass through the setting energy for pipeline of meeting an urgent need
Guarantee influent stream channel and the connection of circulation road between the two out, and by the setting of by-passing valve for realizing the control to emergency pipeline
System.
Be further arranged to: one end of the operating shaft is installed with mounting blocks, and force rod, institute are installed on the mounting blocks
State operating mechanism shell makes control-rod be able to rotate the force application rod being embedded into limiting slot equipped with driving force rod.
By using above-mentioned technical proposal, staff applies active force to force application rod, and active force is conducted by force application rod
Operating shaft is preferably rotated and is embedded into limiting slot for driving operating shaft is rotated to force rod.
In conclusion the invention has the following advantages: the present invention is able to achieve the control of two point pressure.
Detailed description of the invention
Fig. 1 is the main view of embodiment；
Fig. 2 is the structural schematic diagram of embodiment；
Fig. 3 is the sectional view of embodiment；
Fig. 4 is the partial structural diagram of embodiment；
Fig. 5 is the portion A enlarged drawing in Fig. 4；
Fig. 6 is the mated condition figure of driving lever and operating shaft in embodiment；
Fig. 7 is another mated condition figure of driving lever and operating shaft in embodiment；
Fig. 8 is the main view of operating mechanism enclosure interior in embodiment.
In figure: 1, valve body；2, valve deck；3, runner；31, influent stream channel；32, go out circulation road；4, valve seat；5, valve rod；6, valve
Core；7, compressed spring；8, operating mechanism shell；9, driving lever；10, sleeve；11, one-way drive mechanism；111, rack gear；112, tooth
Wheel；113, handle；12, low pressure bellows；13, high pressure bellows；14, low pressure epicoele；15, low pressure cavity of resorption；16, low pressure diaphragm；17, high
Press epicoele；18, high pressure chamber；19, high pressure diaphragm；20, bellows is isolated；21, cavity of resorption is isolated；22, epicoele is isolated；23, isolation film
Piece；24, inlet manifold；25, air intake branch；26, left push rod；27, left adjusting screw rod；28, left adjustment block；29, low pressure bullet
Spring；30, right push rod；31, right adjusting screw rod；32, right adjustment block；33, high pressure spring；34, block is balanced；341, main piece
Body；342, upper frizzen；343, lower frizzen；35, feeler lever；351, left feeler lever；352, right feeler lever；36, operating shaft；37, it threads off
Mechanism；371, the first card slot；372, the second card slot；38, control-rod；39, limiting slot；40, angular guide surfaces；41, cavity；42,
Driving spring；43, left adjusting bolt；44, right adjusting bolt；45, delivery pipe；46, pressure gauge；47, needle valve；48, emergency pipe
Road；49, by-passing valve；50, mounting blocks；51, force rod；52, force application rod；53, pressure-conducting valve；54, balancing spring；55, shaft.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
With reference to Fig. 1 and Fig. 2, a kind of self-operated type dual control point quick action emergency valve, including valve body 1 and it is fixedly installed on valve body 1
Valve deck 2, the top of valve deck 2 is fixedly installed operating mechanism shell 8, and the top positioned at operating mechanism shell 8 is fixedly installed
The sleeve 10 being vertically arranged, be located at the top of operating mechanism shell 8 sleeve 10 two sides be fixedly installed respectively low pressure bellows 12 with
High pressure bellows 13.Runner 3 is offered in valve body 1, runner 3 includes influent stream channel 31 and the circulation out being connected to influent stream channel 31
Road 32 is fixedly connected with emergency pipeline 48 between influent stream channel 31 and out circulation road 32, be fixedly installed with side on pipeline 48 of meeting an urgent need
Port valve 49.It is equipped with isolation bellows 20 positioned at the side of operating mechanism shell 8, the bottom of bellows 20 is isolated and out between circulation road 32
It is fixedly connected with inlet manifold 24, the top of isolation bellows 20, which is fixed with, is separately connected 12 top of low pressure bellows and high pressure bellows
The air intake branch 25 at 13 tops.Pressure-conducting valve 53 is fixedly installed on inlet manifold 24, air intake branch 25 is equipped with delivery pipe 45, defeated
Send one end of pipe 45 and air intake branch 25 it is fixed be connected to, the other end is fixedly installed with pressure gauge 46, be fixedly mounted in delivery pipe 45
There is needle valve 47.
Influent stream channel 31 is fixedly installed with valve seat 4 with the intersection of circulation road 32 between the two out, is equipped with and wears on valve deck 2
If the valve rod 5 inside inlet valve body 1, valve rod 5 and valve seat 4 are coaxially disposed and are located at right above valve seat 4；Valve rod 5 towards valve seat 4 one
End is fixedly installed spool 6, and the compressed spring 7 for being arranged valve rod 5, the fixed setting of 5 upper end of valve rod are equipped between spool 6 and valve deck 2
There is the driving lever 9 being coaxially disposed with valve rod 5.
Referring to figs. 2 and 3, the upper end of driving lever 9 passes through operating mechanism shell 8 and extends into inside sleeve 10, realizes
Sliding inside sleeve 10 is formed between cavity 41 and driving lever 9 and sleeve 10 between driving lever 9 and sleeve 10 and is equipped with unidirectionally
Driving mechanism 11, one-way drive mechanism 11 include rack gear 111, gear 112 and handle 113；Rack gear 111 is integrally formed at actively
The periphery wall of bar 9 and it is arranged along the axial alignment of driving lever 9, gear 112 is set to cavity 41 and mutually nibbles between rack gear 111
It closes.Handle 113 is set to 10 lateral wall of sleeve and one end wears into cavity 41 and is fixedly connected with gear 112, sets in cavity 41
There is driving gear 112 to be axially moveable and be detached from the driving spring 42 of rack gear 111.
With reference to Fig. 4, it is isolated in bellows 20 and is fixedly installed isolation diaphragm 23, the inner cavity of bellows 20 will be isolated in isolation diaphragm 23
It is separated into isolation epicoele 22 and is set with cavity of resorption 21, one end that inlet manifold 24 connects isolation bellows 20 is isolated with the connection of cavity of resorption 21 is isolated
It sets, one end of the connection isolation bellows 20 of air intake branch 25 is arranged with the connection of epicoele 22 is isolated.It is fixedly installed in high pressure bellows 13
The inner cavity of high pressure bellows 13 is separated into high pressure epicoele 17 and high pressure chamber 18, air intake branch by high pressure diaphragm 19, high pressure diaphragm 19
One end of 25 connection high pressure bellows 13 is connected to setting with high pressure epicoele 17；Low pressure diaphragm 16 is fixedly installed in low pressure bellows 12,
The inner cavity of low pressure bellows 12 is separated into low pressure epicoele 14 and low pressure cavity of resorption 15 by low pressure diaphragm 16, and air intake branch 25 connects low-pressure membrane
One end of box 12 is connected to setting with low pressure epicoele 14.Operating mechanism shell 8 is located at being arranged right below for low pressure bellows 12 and sets vertically
The left push rod 26 set, left push rod 26 wear that sliding is set to operating mechanism shell 8 and upper end is worn under low pressure along the vertical direction
Chamber 15 and the sliding sealing between low pressure bellows 12；Operating mechanism shell 8 is located at being arranged right below for high pressure bellows 13 and sets vertically
The right push rod 30 set, right push rod 30 wear that sliding is set to operating mechanism shell 8 and upper end is worn under high pressure along the vertical direction
Chamber 18 and the sliding sealing between high pressure bellows 13.On left push rod 26 between low-pressure membrane box 12 and operating mechanism shell 8
Position on position, right push rod 30 between high-pressure membrane box 13 and operating mechanism shell 8 is arranged with balancing spring 54.
Position of the operating mechanism shell 8 between left push rod 26 and driving lever 9 is equipped with left adjusting screw rod 27, left adjusting spiral shell
The axial direction of bar 27 being arranged in an axially parallel mode and can be arranged in its axially realization sliding, left adjusting screw rod 27 low with left push rod 26
Pressing spring 29；Position of the operating mechanism shell 8 between right push rod 30 and driving lever 9 is equipped with right adjusting screw rod 31, right adjusting
The axial direction of screw rod 31 being arranged in an axially parallel mode and can be arranged in its axially realization sliding, right adjusting screw rod 31 with right push rod 30
High pressure spring 33.Operating mechanism shell 8, which is located at immediately below left push rod 26 and left adjusting screw rod 27 between the two position, passes through pin
Axis is rotatably connected to left adjustment block 28, and left adjustment block 28 is supported close to the upper surface of one end and the lower end of left push rod 26
Touching is contradicted close to the upper surface of the other end and the lower end of left adjusting screw rod 27.Operating mechanism shell 8 is located at left adjustment block 28
Underface and be equipped with left adjustings bolt 43 by the position of two close end, left adjustings bolt 43 passes through nut realization fixation.Operation
The underface that mechanism shell 8 is located at right push rod 30 and right adjusting screw rod 31 position between the two is rotatably connected to right tune by pin shaft
Balance weight 32 is saved, right adjustment block 32 contradicts, close to the upper surface of one end and the lower end of right push rod 30 close to the upper of the other end
Surface and the lower end of right adjusting screw rod 31 contradict.Operating mechanism shell 8 is located at the underface of right adjustment block 32 and close to two
The position at end is equipped with right adjusting bolt 44, and right adjusting bolt 44 is realized by nut and fixed.
With reference to Fig. 3 and Fig. 5, on operating mechanism shell 8 between left adjustment block 28 and right adjustment block 32
Position is provided with balance block 34, and balance block 34 includes main block 341, upper frizzen 342 and lower frizzen 343；Main piece
Body 341 is set to operating mechanism shell 8 by shaft 55, upper frizzen 342 with lower frizzen 343 is fixed respectively sets in main block
341 are located at the position of 55 two sides of shaft, and the axial direction of 55 three of upper frizzen 342, lower frizzen 343 and shaft is set in parallel
It sets.Certain difference in height, left adjustment block 28 and right adjustment are formed between upper frizzen 342 and lower frizzen 343
One end of block 32 towards main block 341 is equipped with the horizontally extending position between upper frizzen 342 and lower frizzen 343
The feeler lever 35 set, the top of feeler lever 35 is limited by upper frizzen 342, lower section is limited by lower frizzen 343.In order to clear
The feeler lever 35 being located on left adjustment block 28 is named as left feeler lever 351, the feeler lever on right adjustment block 32 by statement
35 are named as right feeler lever 352.
With reference to Fig. 3, Fig. 5, Fig. 6 and Fig. 7, positioned at the surface of main block 341, rotation is provided with behaviour on operating mechanism shell 8
Make axis 36, operating shaft 36 is worn into operating mechanism shell 8 to realize the axial direction of rotation and operating shaft 36 and the axial direction of driving lever 9
It is vertically arranged, tripping mechanism 37 is equipped between operating shaft 36 and driving lever 9, tripping mechanism 37 includes the first card slot 371 and second
Card slot 372.First card slot 371 is arranged in operating shaft 36 towards the periphery wall of 9 side of driving lever and passes through along the radial direction of operating shaft 36
It wears and sets, the second card slot 372 is arranged in driving lever 9 towards the periphery wall of 36 one side wall of operating shaft and passes through along the radial direction of driving lever 9
It wears and sets.When the position height of the second card slot 372 and operating shaft 36 maintain an equal level, the one third card of 36 end face of operating shaft is set into the
The opening up setting of two draw-in groove 372 and the first card slot 371；When driving lever 9 moves down, the side wall of the second card slot 372 is supported
It touches the bottom in the first card slot 371 and drives the position of periphery wall of the rotation of operating shaft 36 to the first card slot 371 towards driving lever 9
Set, and state at this time be driving lever 9 periphery wall some be located inside the first card slot 371.
With reference to Fig. 5, Fig. 6, Fig. 7 and Fig. 8, control-rod 38 is fixedly installed in operating shaft 36, the upper surface of main block 341 is opened
Equipped with limiting slot 39, when the card of operating shaft 36 is set into the second card slot 372, the rotation of control-rod 38 is plugged into limiting slot 39；Main block
Angular guide surfaces 40 are offered on 341, control-rod 38, which first contradicts angular guide surfaces 40, to be made to balance after block 34 rotates slotting
If into limiting slot 39.It is installed with mounting blocks 50 on the end face of operating shaft 36, force rod 51 is fixedly installed on mounting blocks 50, executes
Surface on mechanism shell positioned at force rod 51 is interspersed with force application rod 52, and force application rod 52 contradicts force rod 51 for driving operation
Axis 36 rotates.
The course of work:
Medium in runner 3 enters isolation cavity of resorption 21, the meeting when the pressure being isolated in cavity of resorption 21 increases by inlet manifold 24
Driving isolation diaphragm 23 is mobile towards isolation 22 direction of epicoele and squeezes the gas in isolation epicoele 22, to drive gas
Body enters low pressure epicoele 14 and high pressure epicoele 17 by air intake branch 25, and simultaneously to high pressure diaphragm 19 and low pressure diaphragm 16 into
Action is made；And the movement of high pressure diaphragm 19 and low pressure diaphragm 16 then can drive left push rod 26 to contact at left adjustment block simultaneously
28, right push rod 30 contacts at right adjustment block 32.
It drives driving lever 9 mobile back to 5 direction of valve rod by one-way drive mechanism 11 and compressed spring 7 is compressed,
Driving lever 9 is moved with movable valve plug 6 for realizing spool 6 and the separation of valve seat 4 between the two, keeps valve in the open state；When
Spool 6 passes through tripping mechanism 37 for realizing the limit to driving lever 9 after separating between the two with valve seat 4, limit driving lever 9 and send out
Raw displacement.It is embedded into balance block 34 by control-rod 38 for realizing the control to tripping mechanism 37, and balance weight at this time
Body 34 is in equilibrium state.
Low pressure spring 29 drives left adjusting screw rod 27 to contact at left adjustment block 28, passes through the elastic force of low pressure spring 29
Contend with the active force of left push rod 26, for keeping the balance of left balance adjustment block；High pressure spring 33 drives right adjusting screw rod 31 to support
It touches in right adjustment block 32, is contended with the active force of right push rod 30 by the elastic force of high pressure spring 33, for keeping right adjusting
The balance of balance weight 32.
The elastic force of high pressure spring 33 both the first setting value, the elastic force of low pressure spring 29 both the second setting value, works as medium
When section of the pressure value of generation between the first setting value and the second setting value, left adjustment block 28 and right adjustment
Block 32 is in equilibrium state, at this point, feeler lever 35 will not act balance block 34.When pressure medium is greater than the first setting
When value, the height that right adjustment block 32 is located at right 30 side of push rod is reduced, thus make right 32 disequilibrium of adjustment block, and
Unbalanced right adjustment block 32 is rotated by the triggering balance block 34 of feeler lever 35；The balance rotation of block 34 makes control-rod 38
It is detached from balance block 34 and realizes the disengaging between driving lever 9 and operating shaft 36, both tripping mechanism 37 was in disengaged position, this
When, spool 6 is sealed in valve seat 4 under the elastic force of compressed spring 7, realizes the closing of valve.When pressure medium is set less than second
When definite value, the side height that left adjustment block 28 is located at left adjusting screw rod 27 is reduced, so that left adjustment block 28 be made to lose
Balance triggers valve by above-mentioned identical operation and closes.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (10)
1. a kind of self-operated type dual control point quick action emergency valve including valve body (1), is set to the valve deck (2) of valve body (1) and is fixedly arranged on
Valve body (1) internal runner (3) is installed with valve seat (4) on the runner (3), is equipped with valve rod (5), institute on the valve deck (2)
It states and is installed on valve rod (5) spool (6), the compressed spring of driving spool (6) seal valve seat (4) is arranged on the valve rod (5)
(7), it is characterised in that: it is located above the valve deck (2) and is installed with operating mechanism shell (8), the operating mechanism shell (8)
Upper sliding is equipped with the driving lever (9) mobile with ovable valve stem (5), is installed on the operating mechanism shell (8) sliding for driving lever (9)
It is mobile back to valve rod (5) direction to be equipped with driving driving lever (9) for the sleeve (10) of shifting between the sleeve (10) and driving lever (9)
One-way drive mechanism (11), the two sides that driving lever (9) are located on operating mechanism shell (8) are installed with low pressure bellows (12) respectively
With high pressure bellows (13), be installed in the low pressure bellows (12) by low pressure bellows (12) inner cavity be separated into low pressure epicoele (14) with
High pressure bellows (13) inner cavity is separated into high pressure by interior be fixed with of low pressure diaphragm (16), high pressure bellows (13) of low pressure cavity of resorption (15)
The high pressure diaphragm (19) of epicoele (17) and high pressure chamber (18), the side for being located at the operating mechanism shell (8) are equipped with isolation film
Isolation bellows (20) inner cavity is separated into isolation epicoele (22) and isolation cavity of resorption by box (20), interior be installed with of the isolation bellows (20)
(21) isolation diaphragm (23), the isolation cavity of resorption (21) are connected to by inlet manifold (24) with runner (3), epicoele (22) are isolated
It is connected to respectively with low pressure epicoele (14) and high pressure epicoele (17) by air intake branch (25)；
Wearing sliding immediately below low-pressure membrane box (12) on the operating mechanism shell (8) has left push rod (26), the left side
The upper end of push rod (26) wears into low pressure cavity of resorption (15) and slides sealing, the operating mechanism shell between low pressure bellows (12)
(8) position between driving lever (9) and left push rod (26) is equipped with and left push rod (26) left adjusting screw rod disposed in parallel
(27), rotation is equipped with the left adjustment block (28) being located at below left adjusting screw rod (27), institute on the operating mechanism shell (8)
State left adjustment block (28) close to one end upper surface and left push rod (26) lower end contradict, close to the other end upper surface with
The lower end of left adjusting screw rod (27) contradicts, and is equipped between the operating mechanism shell (8) and left adjusting screw rod (27) and drives left tune
Save bolt (43) low pressure spring (29) mobile towards left adjustment block (28) direction；
Wearing sliding immediately below high-pressure membrane box (13) on the operating mechanism shell (8) has right push rod (30), the right side
The upper end of push rod (30) wears into high pressure chamber (18) and slides sealing, the operating mechanism shell between high pressure bellows (13)
(8) position between driving lever (9) and right push rod (30) is equipped with and right push rod (30) right adjusting screw rod disposed in parallel
(31), rotation is equipped with the right adjustment block (32) being located at below right adjusting screw rod (31), institute on the operating mechanism shell (8)
State right adjustment block (32) close to one end upper surface and right push rod (30) lower end contradict, close to the other end upper surface with
The lower end of right adjusting screw rod (31) contradicts, and is equipped between the operating mechanism shell (8) and right adjusting screw rod (31) and drives right tune
Save bolt (44) high pressure spring (33) mobile towards right adjustment block (32) direction；
Position rotation of the operating mechanism shell (8) between left adjustment block (28) and right adjustment block (32) is set
Have balance block (34), is equipped on the left adjustment block (28) and right adjustment block (32) and extends into balance block
(34) feeler lever (35), when the left adjustment block (28) or right adjustment block (32) disequilibrium, the feeler lever
(35) balance block (34) can be triggered to rotate, rotation is equipped with operating shaft (36) on the operating mechanism shell (8), the behaviour
Make to be equipped with the tripping mechanism (37) for limiting driving lever (9) between axis (36) and driving lever (9), when the tripping mechanism (37)
When limiting driving lever (9), is separated between the spool (6) and valve seat (4), be installed with and be embedded into balance on the operating shaft (36)
Block (34) and the control-rod (38) for being used to control tripping mechanism (37), it is described when the balance block (34) rotates
Control-rod (38) be detached from balance and block (34) and realize the disengaging between driving lever (9) and operating shaft (36).
2. self-operated type dual control point quick action emergency valve according to claim 1, it is characterised in that: balance block (34) packet
It includes main block (341) and is fixedly arranged on the upper frizzen (342) and lower frizzen (343) of main block (341), the main block
(341) it is rotatablely connected by shaft (55) and operating mechanism shell (8), the upper frizzen (342) and lower frizzen (343)
Shaft (55) is separately positioned on along its axial two sides, when the balance block (34) is in equilibrium state, the upper triggering
The spacing interted for feeler lever (35) is formed between bar (342) and lower frizzen (343), when the left adjustment block (28) or the right side
When adjustment block (32) is in equilibrium state, the feeler lever (35) is worn into upper frizzen (342) and lower frizzen (343)
Between and contradicted by the two.
3. self-operated type dual control point quick action emergency valve according to claim 1, it is characterised in that: the tripping mechanism (37)
Including being set to first card slot (371) of operating shaft (36) periphery wall and being set to the second card slot of driving lever (9) periphery wall
(372), the axial direction of the operating shaft (36) and driving lever (9) is axially vertical, when the periphery wall card of the operating shaft (36) is set
When into the second card slot (372), the control-rod (38) is embedded into balance block (34), is balanced when the control-rod (38) are detached from
When block (34), the driving lever (9) driving operating shaft (36) rotates and makes the periphery wall slip of driving lever (9) into the first card
Slot (371) is used to guarantee the normal slip of driving lever (9).
4. self-operated type dual control point quick action emergency valve according to claim 3, it is characterised in that: including being set to balance block
(34) and for the limiting slot (39) that control-rod (38) is embedded, the balance block (34) is equipped with can smoothly turn for control-rod (38)
Move the angular guide surfaces (40) in limiting slot (39).
5. self-operated type dual control point quick action emergency valve according to claim 1, it is characterised in that: the one-way drive mechanism
(11) include be fixed on driving lever (9) periphery wall and along the rack gear of its axial alignment (111), be rotatably dispose in sleeve (10) and with
Rack gear (111) meshed gears (112) and the handle (113) of driving gear (112) rotation.
6. self-operated type dual control point quick action emergency valve according to claim 5, it is characterised in that: formed in the sleeve (10)
There is the cavity (41) for gear (112) axial movement, is equipped with driving gear (112) in the cavity (41) and is detached from rack gear (111)
Driving spring (42).
7. self-operated type dual control point quick action emergency valve according to claim 1, it is characterised in that: the operating mechanism shell
(8) left adjusting bolt (43), the operation are equipped with positioned at the underface of left adjustment block (28) and by the position of two close end
Mechanism shell (8) is located at the underface of right adjustment block (32) and is equipped with right adjusting bolt (44) by the position of two close end.
8. self-operated type dual control point quick action emergency valve according to claim 1, it is characterised in that: on the air intake branch (25)
Equipped with delivery pipe (45), one end of the delivery pipe (45) is equipped with pressure gauge (46), the other end is connected to air intake branch (25), institute
Delivery pipe (45) are stated equipped with needle valve (47).
9. self-operated type dual control point quick action emergency valve according to claim 1, it is characterised in that: the runner (3) include into
Circulation road (31) and be connected to influent stream channel (31) go out circulation road (32), the valve seat (4) be arranged in influent stream channel
(31) and out the position between circulation road (32), is communicated with emergency pipeline between the influent stream channel (31) and out circulation road (32)
(48), the emergency pipeline (48) is equipped with by-passing valve (49).
10. self-operated type dual control point quick action emergency valve according to claim 4, it is characterised in that: the operating shaft (36)
One end is installed with mounting blocks (50), is installed with force rod (51) on the mounting blocks (50), is set on the operating mechanism shell (8)
There is driving force rod (51) that control-rod (38) is made to be able to rotate the force application rod (52) being embedded into limiting slot (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810666330.2A CN108953638B (en) | 2018-06-26 | 2018-06-26 | Self-operated emergency cut-off valve with double control points |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810666330.2A CN108953638B (en) | 2018-06-26 | 2018-06-26 | Self-operated emergency cut-off valve with double control points |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108953638A true CN108953638A (en) | 2018-12-07 |
| CN108953638B CN108953638B (en) | 2023-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810666330.2A Active CN108953638B (en) | 2018-06-26 | 2018-06-26 | Self-operated emergency cut-off valve with double control points |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8503788D0 (en) * | 1985-02-14 | 1985-03-20 | Bryan Donkin Co Ltd | Slam-shut valves |
| CN102563096A (en) * | 2012-02-17 | 2012-07-11 | 无锡市亚迪流体控制技术有限公司 | Ultrahigh pressure differential tight cut-off regulating valve |
| CN103821981A (en) * | 2014-03-20 | 2014-05-28 | 浙江科海仪表有限公司 | Self-operated internal pressure collecting type adjusting valve |
| CN105299305A (en) * | 2015-10-30 | 2016-02-03 | 重庆市界石燃气设备有限公司 | Emergency cut-off valve for fuel gas equipment |
| CN205859274U (en) * | 2016-07-19 | 2017-01-04 | 宁波埃美柯铜阀门有限公司 | Adjustable dynamic balance valve |
| CN107631043A (en) * | 2017-09-30 | 2018-01-26 | 江苏沃尔坎技研科技有限公司 | A kind of angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch |
-
2018
- 2018-06-26 CN CN201810666330.2A patent/CN108953638B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8503788D0 (en) * | 1985-02-14 | 1985-03-20 | Bryan Donkin Co Ltd | Slam-shut valves |
| CN102563096A (en) * | 2012-02-17 | 2012-07-11 | 无锡市亚迪流体控制技术有限公司 | Ultrahigh pressure differential tight cut-off regulating valve |
| CN103821981A (en) * | 2014-03-20 | 2014-05-28 | 浙江科海仪表有限公司 | Self-operated internal pressure collecting type adjusting valve |
| CN105299305A (en) * | 2015-10-30 | 2016-02-03 | 重庆市界石燃气设备有限公司 | Emergency cut-off valve for fuel gas equipment |
| CN205859274U (en) * | 2016-07-19 | 2017-01-04 | 宁波埃美柯铜阀门有限公司 | Adjustable dynamic balance valve |
| CN107631043A (en) * | 2017-09-30 | 2018-01-26 | 江苏沃尔坎技研科技有限公司 | A kind of angled seat formula stop valve for being used to control high-temperature, high pressure fluid to switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108953638B (en) | 2023-06-27 |
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Inventor after: Wang Hanke Inventor after: Yu Hongbin Inventor after: Li Jiahui Inventor after: Chen Ayun Inventor before: Yu Hongbin Inventor before: Wang Hanke Inventor before: Li Jiahui Inventor before: Chen Ayun |
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