CN204610895U - For the gland of emergency shutdown valve - Google Patents
For the gland of emergency shutdown valve Download PDFInfo
- Publication number
- CN204610895U CN204610895U CN201520098803.5U CN201520098803U CN204610895U CN 204610895 U CN204610895 U CN 204610895U CN 201520098803 U CN201520098803 U CN 201520098803U CN 204610895 U CN204610895 U CN 204610895U
- Authority
- CN
- China
- Prior art keywords
- gland
- valve
- axle
- emergency shutdown
- bracket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000004907 gland Anatomy 0.000 title claims abstract description 58
- 238000007789 sealing Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 description 12
- 238000012856 packing Methods 0.000 description 10
- 238000012423 maintenance Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 5
- 230000003321 amplification Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Abstract
The utility model provides a kind of gland for emergency shutdown valve.Described gland comprises: the body of generic cylindrical; Through the aperture that described body is formed, the size in described aperture is set to hold rotatable axle; And the groove be formed in the first end of described body, described groove is configured to the one end holding torque spring.
Description
The divisional application that the application is that the application number proposed on April 14th, 2014 is 201420189276.4, name is called the patent application of " emergency shutdown valve and for the gland of this emergency shutdown valve and axle ".
Technical field
The utility model relates generally to emergency shutdown valve, and more specifically, relates to the gland seal and the shut-off valve being easy to installation and maintenance with improvement.
Background technique
Gas distributing system, particularly natural gas distributing system, usually from the producer along a series of pipeline and via a series of valve to user's transport gas.Each gas distributing system may comprise one or more modulating valve, and this valve is for controlling the gas pressure intensity in distribution system.Under normal circumstances, gas is transmitted with High Voltage in systems in which.But before finally distributing to user, the pressure of gas must be lowered.Be done in the usual let-down stations in the home network of this step-down.
Usually, these let-down stations comprise some safety installation in order to turn off gas flow.Modal, be use emergency shutdown valve to realize this object.Emergency shutdown valve is generally placed on the upstream of pressure modulating valve, thus makes emergency shutdown valve can prevent gas from entering pressure modulating valve in case problem occurs.Emergency shutdown valve can manually operate or monitor the gas downstream pressure of pressure modulating valve, with throttle down and the gas flow being cut to pressure modulating valve to prevent the Leakage Gas out of control such as caused due to pressure modulating valve fault or other problems.
Usually, emergency shutdown valve has the valve plug of bracket (poppet) or other types, be installed in make bracket move between open and closed positions on rotatable axle, open position makes fluid flow through valve, and closed position stops fluid to flow through valve.But in conventional emergency shutdown valve, once install, in maintenance, just cannot prevent bracket from skidding off axle.Therefore, if axle is moved in maintenance process, there is bracket and fall to possibility in valve, or fall to even further in gas distributing system, this just needs to remove this Emergeny Cutoff Valves and can cause other problems.
In addition, in the I& M process of Emergeny Cutoff Valves, must align with gland (gland) and be coupled with this end of fixing torque spring in one end of torque spring, this torque spring is used to bracket to be biased to closed position.In the typical design, when gland is inserted in the shell of valve, one end of the torque spring that realize aliging and to guarantee to couple be very difficult.
Finally, the most typical emergency shutdown valve leakage that uses packing ring to prevent between gland and shell at the internal surface of the outer surface of gland and valve casing.But be easy to run into leakage and problem in these packing ring processes of installation, if particularly packing ring needs to install on screw thread, it may damage packing ring.
Model utility content
For the emergency shutdown valve existed in solution prior art is once install, in maintenance, just cannot prevent bracket from skidding off the problem of axle, and/or when in shell gland being inserted into valve, the problem that the one end and guaranteeing being difficult to realize alignment torque spring couples, and/or the problem running into leakage is easy in installation packing ring process, according to an exemplary aspect of the present utility model, emergency shutdown valve comprises and limits entrance, outlet, valve port between the inlet, the valve body in hole, valve assembly and actuator.Valve assembly to be partly arranged in described valve body and to extend through described hole.Actuator is operationally coupled to described valve assembly to move described valve assembly at open position and closed position, and valve assembly comprises bracket and rotatable axle.It is interior and removable between open and closed positions that described bracket is disposed in described valve body, described open position allows to be flowed by the fluid of described valve body, described closed position prevention is flowed by the fluid of described valve body, described bracket comprises arm, and described arm has the groove formed through this arm.Described axle is coupled to described bracket, described axle comprises the first intermediate portion being configured to engage with described bracket, be formed in the hole on described first intermediate portion, and the retaining member be arranged in the described hole that is formed on described first intermediate portion of described axle and in the described groove of described bracket, removed by from described axle for stoping described bracket.
According to another exemplary aspect of the present utility model, the body that the gland for emergency shutdown valve comprises generic cylindrical, the aperture that formed through described body and the size in described aperture are set to the groove holding rotatable axle and be formed in the first end of described body.Described groove is configured to the one end holding torque spring.
According to another exemplary aspect of the present utility model, the axle for emergency shutdown valve comprises first end, polygonal first intermediate portion with the hole be formed in wherein and the retaining member be arranged in described hole.Described first intermediate portion is configured to engage with the bracket of described emergency shutdown valve.Described retaining member stops described bracket to be removed by from described axle.
According to above-mentioned exemplary aspect of the present utility model any one or appoint multiple, emergency shutdown valve, the gland for emergency shutdown valve and/or the axle for emergency shutdown valve may further include any one in following preferred form or appoint multiple combination in any mode.
In a preferred form, described axle comprises polygonal intermediate portion, the described retaining member be arranged in the described intermediate portion of described axle, and described bracket comprises polygonal hole, and it is configured to the described intermediate portion holding and engage described axle.
In another preferred form, described retaining member is spring pin, screw, pin or clip.
In another preferred form, described emergency shutdown valve also comprises gland, the body that described gland comprises generic cylindrical, the aperture that formed through described body and the size in described aperture are set to the groove holding described axle and be formed in the first end of described body, and described groove is configured to the one end holding torque spring.
In another preferred form, described emergency shutdown valve also comprises O shape ring, and it is arranged in the groove in described hole of the outer surface being centered around described valve body, and from the flange that the outer surface of described gland extends.Described flange and described O shape engagement of loops are to be provided in the sealing between described gland and described valve body.
In another preferred form, described torque spring comprises columniform part and the size of described columniform part is set to hold described axle, engages the first end of described bracket and engages the second end of described gland, for described bracket is biased to described closed position.
In another preferred form, the outer surface of the second end of described gland limits at least one arcuate surface and at least one plat surface, and at least one arcuate surface described and at least one plat surface described are configured to align with the groove be formed in the retaining member being fixed to described valve body and coordinate.
In another preferred form, described axle also comprises the second end being configured to engage with the actuator of described emergency shutdown valve.
In another preferred form, described axle also comprises columniform second intermediate portion, and described second intermediate portion is configured to engage with the torque spring of described emergency shutdown valve and gland.
The emergency shutdown valve of each exemplary aspect of the present utility model and/or emergency shutdown valve that exists in prior art can be solved once install for the gland of emergency shutdown valve and axle, in maintenance, just cannot prevent bracket from skidding off the problem of axle, and when in shell gland being inserted into valve, the problem that the one end and guaranteeing being difficult to realize alignment torque spring couples, and the problem running into leakage is easy in installation packing ring process.
Accompanying drawing explanation
Fig. 1 shows the side cross-sectional view of exemplary emergency shut-off valve;
Fig. 2 shows the base section sectional view of the exemplary emergency shut-off valve in Fig. 1;
Fig. 3 shows the part upper view of the amplification of the exemplary emergency shut-off valve in Fig. 2, and this valve portion valve body is removed;
Fig. 4 A shows the zoomed-in view of the 4A part in Fig. 2;
Fig. 4 B shows the zoomed-in view of the 4B part in Fig. 4 A;
Fig. 5 shows the perspective view of the exemplary gland for emergency shutdown valve;
Fig. 6 shows the enlarged perspective of one end of this exemplary gland in Fig. 5;
Fig. 7 shows the perspective view of the exemplary retaining member for emergency shutdown valve;
Fig. 8 shows Fig. 2 axis, the amplification of gland and torque spring, part, side view;
Fig. 9 shows Fig. 2 axis, the enlarged perspective of bracket and spring pin;
Figure 10 shows the enlarged perspective of Fig. 9 axis;
Figure 11 shows 11 enlarged partial perspective view in Fig. 9.
Embodiment
Exemplary emergency shut-off valve herein has longer life cycle, easier installation and maintenance, and the gland seal improving typical emergency shutdown valve.The gland seal improved can use o ring to realize by the groove that couples one end of the flange of gland in valve body, instead of installs packing ring to realize between the outer surface and the internal surface of valve body mesoporous of gland.In addition, by providing notch in gland one end instead of providing a hole, receive one end of torque spring to simplify the installation of valve, make I& M become easier.And spring pin can be placed in prevent bracket from falling into the downstream falling into valve body in valve body or in maintenance process on axle, and needs valve is removed and/or causes other problems by this from pipe-line system.
See Fig. 1 and Fig. 2.Exemplary emergency shut-off valve 10 generally comprises valve body 100, valve assembly 200, and actuator 400.Valve body 100 is comprised first portion 105 and is fixed on the second portion 120 of first portion 105 by threaded part 135.O shape ring 165 is placed between first portion 105 and second portion 120 to prevent the leakage of valve body 100.First portion 105 has the tapped hole 110 defining entrance 115, and second portion 120 has the tapped hole 125 defining outlet 130, and valve port 140 is between entrance 115 and outlet 130.In the example shown, inserting member 150 is arranged in the first portion 105 of valve body 100, and comprises the aperture 155 defining valve port 140.One end that Sealing 160 is fixed in inserting member 150 with the face of providing support (seating surface) 145 to couple the sealing surface 215 of the bracket 205 of valve assembly 200, below by more detailed description.Hole 170 also can be formed by the side of first portion 105, with admission valve assembly 200 and groove 175 (Fig. 4 A and 4B), or other passage and groove, groove can be formed in the one end in hole 170 receives O shape ring 330 to provide the sealing between the first portion 105 of valve body 100 and the gland 280 of valve assembly 200.
With reference to Fig. 2 to 4B, valve assembly 200 generally includes bracket 205, axle 230, gland 280, torque spring 340 and retainer 360.Bracket 205 comprises valve plug 210, and it limits sealing surfaces 215, and when valve 10 is in the closed position, sealing surfaces 215 engages the supporting surface of valve port 140.Arm 220 is connected to valve plug 210 and has polygonal hole 222, and to hold a part for axle 230, and arm 220 has the groove 224 intersected with hole 222, holds the first end 350 of torque spring 340 with the part made it possible to close to axle 230.In the example illustrated, hole 222 is foursquare and holds the square portion of axle 230, so that bracket 205 rotates along with axle 230.
As in Fig. 3 and Fig. 8 to 11 best explicitly, axle 230 has columniform first end 235, polygonal first intermediate portion 240 (it is configured to the arm 220 of the bracket 205 holding and engage passing hole 222), substantially columniform second intermediate portion 245 (it is configured to hold torque spring 340 and gland 280) and polygonal second end 250 substantially, and it is configured to a part for engages actuator assembly 400.In the example illustrated, the first intermediate portion 240 of axle 230 is foursquare and is accommodated in the hole 222 of bracket 205, and operationally bracket 205 is coupled to axle 230, when rotating with convenient axle 230, bracket 205 rotates around axle 230.Hole 255 is formed in the first intermediate portion 240 of axle 230, and be configured to hold retaining member 260, such as spring pin, screw, pin, clip or other keep equipment, its extend into the groove 224 in arm 220 and prevent bracket 205 the assembling of emergency shutdown valve, operation or during safeguarding from axle 230 landing.Second intermediate portion 245 of axle 230 to be inserted in torque spring 340 and gland 280 and can to rotate along with torque spring 340 and gland 280, and as can best explicitly in Fig. 4 A, follower (follower) 265 and packing 270 can be arranged between axle 230 and gland 280, to allow rotate and prevent the leakage between axle 230 and gland 280.Spring 275 also can be set up in gland 280 and around axle 230 to compress packing 270.
See Fig. 3 to 6, gland 280 has columniform body 285 substantially, and its size is suitable for mating in the hole 170 in valve body 100, and gland 280 has the aperture 290 through body 285, and its size is suitable for the second intermediate portion 245 holding axle 230.One or more chamber 295 (Fig. 4 A) is if also can be formed in native country 285 to need to hold follower 265, packing 270 and/or spring 275.The first end 300 in native country 285 can have the diameter that reduces a little and limit one or more groove 305, and it is configured to hold and the second end 355 of fixing torque spring 340.The assembling providing groove 305 to simplify valve 10 in the first end 300 of gland 280 and maintenance, because gland 280 can easily be alignd with the second end 355 of torque spring 340.Flange 310 axially extends from the outer surface of the body 285 of the second end 315 close to body 285, and is configured to engage O type ring 330 and the sealing be provided between the first portion of valve body 100 and gland 280.Second end 315 of gland 280 has the outer surface 320 of two arches and two flat outer surfaces 325, and it is configured to mate with the surface 385,390 of the groove 380 in retainer 360.
As shown in Fig. 3,4A and 8, torque spring 340 has columniform part 345 substantially, and it is arranged on axle 230.Second end 355 of torque spring 340 extends from one end of columniform part 345, and is arranged in the groove 305 in gland 280, keeps the second end 355 static when axle 230 rotation and bracket 205 move time slot 305.The first end 350 of torque spring 340 extends from the opposite end of columniform part 345, and be arranged in the groove 224 in the arm 220 of bracket 205 so that bracket 205 is biased to closed position, in this closed position, the sealing surfaces 215 of bracket 205 engages the supporting surface 145 of valve port 140.Alternatively, the first end 350 of torque spring 205 can the arm 220 of otherwise joint holder 205, is such as shelved in groove, to insert hole medium, as long as bracket 205 is biased to closed position by torque spring 340.When axle 230 rotates and bracket 205 moves to open position from closed position, second end 355 of torque spring 340 is still in static in the groove 305 of gland 280, and the first end 350 of torque spring 340 will move along with bracket 205, load torque spring 340 thus.
With reference to figure 3-4B and 7, retainer 360 has substantially flat body 365, it has aperture 370 (its size is suitable for holding axle 230) and multiple hole 275, and its size is suitable for and is set to hold threaded component 395 with the first portion 105 of fixed retainer 360 to valve body 100.On a surface of retainer 360, there is groove 380, it has the surface 385 of two arches and two flat surfaces 390, its corresponding to the surface 320,325 of surface peace of arch of the second end 315 of gland 280.Alternatively, the groove 380 of retainer 360 and the second end 315 of gland 280 can be substantially columniform and have single flat surface, can be polygonal, can be maybe expect to provide any geometrical shape of better placing gland 280 and retainer 260.
Be coupled to the second end 250 of axle 230 actuator operable, move between the open and closed positions with running shaft 230 with by bracket 205.Those skilled in the art are known can be used in the actuator triggering and reset emergency shutdown valve.Such as, actuator can be manual actuator, such as takes uncommon
manual actuator on emergency shutdown valve, can be that air closes actuator (air-close actuator), such as take uncommon
p327D can be maybe that actuator (air open-close actuator) is opened-closed to air, such as takes uncommon
p539A.Shown in figure 2 in example, actuator 400 is manual actuators, and generally includes operating component 410 and latch assembly 440.
Operating component 410 comprises operating lever 415 (it is arranged on the second end 250 of axle 230) and axle 420, and it is arranged on the distal end of the second end 250 of axle 230.Operating lever 415 and axle 420 are by threaded component, and such as bolt 425 is fixed to axle 230.Torque spring 430 is settled round axle 420 and is had the second end of one end and the engages latch assembly 440 being fixed to operating lever 415.Operating lever 415 is biased to closed position by torque spring 430, also in the closed position at this closed position bracket 205.
Latch assembly 440 comprises lock bolt block 445, and it is fixed to valve body 100.Piston 450 is placed in lock bolt block 445 movably, so that piston 450 is longitudinally moveable in lock bolt block 445, and a part for piston 450 is from the end-boss of lock bolt block 145 to such as upper/lower positions, i.e. the position of the end bonding operation handle 415 of piston 450 when operating grip 415 is at open position.Resilient member, such as spring 455, to be arranged in lock bolt block 445 and adjacent piston 450, to be biased away from lock bolt block 445 by piston 450.Cable 460 is fixed to piston 450 and extends through the opening in lock bolt block 445, so that cable 460 is for user Ke Da.
In running, operating grip 415 and bracket 205 are biased to closed position by torque spring 430,340, thus bracket 205 support sealing surfaces 215 against valve port 140 supporting surface 145 and stop fluid to flow through emergency shutdown valve 10.In order to reset emergency shutdown valve, operating grip 415 by rotation to open position, thus load torque spring 430 until operating grip 415 latching portion engaging piston 450 and operating grip is remained on open position.Rotating operating handle 415 to open position is also by running shaft 230, and bracket 205 is moved to open position and loads torque spring 340 by it.Valve plug 450 keeps operating grip 415 at open position until trigger emergency shut-off valve 10.In order to trigger emergency shut-off valve 10, will pull cable 460, it will pull in piston 450 to lock bolt block 445 to resist the power of spring 455.When piston is drawn in lock bolt block 445, it to depart from and operating grip 415 is rotated back to closed position by torque spring 430 from operating grip 415.Rotating operating handle 415 to closed position is also by running shaft 230, and bracket moves to closed position and cuts out emergency shutdown valve 10 by it.
Although described above is various embodiment, the disclosure is not limited to this.Various modification can be carried out, among the scope being still in claims to disclosed embodiment.
Claims (4)
1. for a gland for emergency shutdown valve, it is characterized in that, described gland comprises:
The body of generic cylindrical;
Through the aperture that described body is formed, the size in described aperture is set to hold rotatable axle; And
Be formed in the groove in the first end of described body, described groove is configured to the one end holding torque spring.
2. gland according to claim 1, it is characterized in that, also comprise the flange extended from the outer surface of described body, described flange is configured to and the O shape engagement of loops in the groove be arranged on the valve body of described emergency shutdown valve, for providing sealing between described gland and described valve body.
3. gland according to claim 1, it is characterized in that, described torque spring comprises columniform part and the size of described columniform part is set to the second end of holding rotatable axle, the first end engaged with the bracket of described emergency shutdown valve and engaging with described gland, for described bracket is biased to closed position.
4. gland according to claim 1, it is characterized in that, the outer surface of the second end of described gland limits at least one arcuate surface and at least one plat surface, and at least one arcuate surface described and at least one plat surface described are configured to align with the groove be formed in the retaining member being fixed to described valve body and coordinate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420189276.4U CN204372245U (en) | 2014-04-14 | 2014-04-14 | Emergency shutdown valve and the axle for this emergency shutdown valve |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420189276.4U Division CN204372245U (en) | 2014-04-14 | 2014-04-14 | Emergency shutdown valve and the axle for this emergency shutdown valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204610895U true CN204610895U (en) | 2015-09-02 |
Family
ID=53328467
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520098803.5U Expired - Lifetime CN204610895U (en) | 2014-04-14 | 2014-04-14 | For the gland of emergency shutdown valve |
| CN201420189276.4U Expired - Lifetime CN204372245U (en) | 2014-04-14 | 2014-04-14 | Emergency shutdown valve and the axle for this emergency shutdown valve |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420189276.4U Expired - Lifetime CN204372245U (en) | 2014-04-14 | 2014-04-14 | Emergency shutdown valve and the axle for this emergency shutdown valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN204610895U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976393A (en) * | 2014-04-14 | 2015-10-14 | 艾默生过程管理调节技术公司 | Emergency shutoff valve |
| EP3627020A1 (en) * | 2018-09-21 | 2020-03-25 | Goodrich Corporation | Valve actuation mechanism |
-
2014
- 2014-04-14 CN CN201520098803.5U patent/CN204610895U/en not_active Expired - Lifetime
- 2014-04-14 CN CN201420189276.4U patent/CN204372245U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976393A (en) * | 2014-04-14 | 2015-10-14 | 艾默生过程管理调节技术公司 | Emergency shutoff valve |
| CN104976393B (en) * | 2014-04-14 | 2020-03-10 | 艾默生过程管理调节技术公司 | Emergency shut-off valve |
| EP3627020A1 (en) * | 2018-09-21 | 2020-03-25 | Goodrich Corporation | Valve actuation mechanism |
| US11339886B2 (en) | 2018-09-21 | 2022-05-24 | Goodrich Corporation | Valve actuation mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN204372245U (en) | 2015-06-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150902 |