CN202048247U - Piston type high-temperature pressure reducing and maintaining valve - Google Patents
Piston type high-temperature pressure reducing and maintaining valve Download PDFInfo
- Publication number
- CN202048247U CN202048247U CN2011201003634U CN201120100363U CN202048247U CN 202048247 U CN202048247 U CN 202048247U CN 2011201003634 U CN2011201003634 U CN 2011201003634U CN 201120100363 U CN201120100363 U CN 201120100363U CN 202048247 U CN202048247 U CN 202048247U
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- Prior art keywords
- valve
- control room
- conduit
- piston
- main valve
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 230000006837 decompression Effects 0.000 claims description 20
- 238000013022 venting Methods 0.000 claims description 20
- 230000000903 blocking effect Effects 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 claims description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000000386 athletic effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model discloses a piston type high-temperature pressure reducing and maintaining valve, which comprises a valve body which consists of a water inlet cavity, a main valve control room and a water outlet cavity which is positioned between the water inlet cavity and the main valve control room, a valve plug, a piston and a valve rod, wherein the water inlet cavity is connected with the main valve control room through a first guide pipe, the water outlet cavity is connected with the main valve control room through a second guide pipe, a corrugated pipe which is isolated from the valve body is sleeved at one section of the valve rod, which is positioned in the main valve control room, the upper end of the corrugated pipe is propped against a connection plate of the corrugated pipe, and the periphery of the connection plate of the corrugated pipe is fixedly connected with the valve body. In the utility model, the corrugated pipe which is sleeved outside the valve rod is installed in the main valve control room of the traditional piston type pressure reducing valve, and the utility model has the beneficial effects that: the corrugated pipe is arranged to reduce mechanical abrasion, so the experimental service life of the pressure reducing valve is prolonged; and the corrugated pipe can absorb the axial, lateral and angle thermal deformation of the valve rod, so the driving force of the valve rod to the piston and the like is more balanced.
Description
Technical field
The utility model relates to a kind of valve, a kind of specifically piston high-temperature decompression venting valve.
Background technique
Valve is the control gear of fluid circuit, and its fundamental function is the circulation that switches on or off the pipeline medium, changes the circulation or the flow direction of medium, or regulates the pressure and the flow of medium, reaches the normal operation of protective tube pipeline equipment.Valve can be used for controlling flowing of all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.
Valve can be divided into block valve, modulating valve, safety check, diverter valve, safety valve, use valve six classes more by function of use: (1) block valve, and be mainly used in and block fluid passage, comprise stop valve, gate valve, stopcock, ball valve, butterfly valve membrane valve, pinch valve etc.; (2) modulating valve is mainly used in pressure, flow of regulated fluid etc., comprises modulating valve, throttle valve, reduction valve and float adjusting valve etc.; (3) safety check is used to stop the reverse flow of fluid; (4) diverter valve is used for the path whereabouts of distributing fluids, or with the two-phase fluid separation, comprises guiding valve, multiple-way valve, drain valve and emptying valve etc.; (5) safety valve is mainly used in safety protection, prevents that boiler, pressurized container or pipeline from destroying because of superpressure; (6) many is the valve with more than one functions with valve, can play the cutout effect as screw down nonreturn valve and can play the non-return effect again.
A kind of as above-mentioned modulating valve, the working principle of reduction valve is that above downstream pressure difference △ P is a power, automatically regulate by media such as water that transmits in the pipeline or gases by pilot valve, thereby control main valve valve disc complete opening, close fully or be in the can regulate state.Figure 1 shows that a kind of traditional diaphragm type reduction valve, when the pressure in entering control room, barrier film 201 top is discharged to the downstream low pressure area, the force value that acts on valve disc bottom and barrier film below is shifted the main valve valve disc onto by the interlock of piston rod 202 position of complete opening just greater than the force value of top; When the pressure in entering control room, barrier film 201 top can not be discharged to the downstream low pressure area, the force value that acts on the barrier film top will be pressed onto the position of closing fully to the main valve valve disc just greater than the force value of below; When the force value in the control room, barrier film 201 top was between the above-mentioned two states, the main valve valve disc just was in adjustment state.The Piston reducing valve working principle is similar in this.
The defective of this structure is: made by metallic material mostly because the valve inner member comprises valve rod, parts clashed into mutually around valve rod athletic meeting under the effect of water pressure caused valve rod and valve rod, lacked buffering, had shortened the life-span of reduction valve.
Summary of the invention
The purpose of this utility model provides a kind of piston high-temperature decompression venting valve, be located at bellows outside the valve rod by installation sleeve in the main valve control room of traditional Piston reducing valve, for the motion of valve rod provides a cushion effect, reduce the mutual wearing and tearing of reduction valve internal mechanical part.
For achieving the above object, the utility model proposes a kind of piston high-temperature decompression venting valve, comprise by water-inlet cavity, the valve body that main valve control room and the water chamber between described water-inlet cavity and described main valve control room are formed, be used for blocking the spool of medium circulation between described water-inlet cavity and the described water chamber, be used for blocking the piston of medium circulation between described main valve control room and the described water chamber, be arranged in described valve body and run through described water-inlet cavity, the valve rod in described water chamber and described main valve control room, described water-inlet cavity is connected with described main valve control room by first conduit, and described water chamber is connected with described main valve control room by second conduit; It is characterized in that: described valve rod is arranged in a section of described main valve control room and is arranged with the bellows of isolating with valve body, described bellows upper end butt one bellows connecting plate, and the periphery of described bellows connecting plate is fixedly connected on described valve body.
Above-mentioned piston high-temperature decompression venting valve, described bellows connecting plate and described valve body joint are provided with spiral wound gasket.
Above-mentioned piston high-temperature decompression venting valve is provided with a guide sleeve between described piston and the described valve body, is used for blocking described piston is arranged in described water chamber and joint from described main valve control room to the described guide sleeve of described water chamber motion.
Above-mentioned piston high-temperature decompression venting valve, described valve rod is arranged with a base spring at an end that is positioned at described water-inlet cavity.
Above-mentioned piston high-temperature decompression venting valve is equipped with a pilot valve pressing plate between top, described main valve control room and the described bellows connecting plate, and described pilot valve pressing plate is sheathed on the described valve rod, and the top in described pilot valve pressing plate and described main valve control room is connected with a spring.
Above-mentioned piston high-temperature decompression venting valve, described first conduit is provided with one and is used for regulating the modulating valve that described first conduit opens or closes, also be provided with first ball valve on described first conduit, a pressure gauge is communicated with described first conduit by described first ball valve.
Above-mentioned piston high-temperature decompression venting valve, described second conduit is provided with a pilot valve, described pilot valve is used for regulating described second conduit and opens or closes, and also is provided with second ball valve on described second conduit, and a pressure gauge is communicated with described second conduit by described second ball valve.
The utility model installation sleeve in the main valve control room of traditional Piston reducing valve is located at the bellows outside the valve rod, and its technique effect is:
1, being provided with of bellows reduced mechanical wear, prolonged the reduction valve experiment life-span;
2, bellows can absorb stem shaft to, laterally, the angle thermal distortion, make valve rod balanced more to the driving force of piston etc.
Description of drawings
Fig. 1 is a diaphragm type structure of relief pressure valve schematic representation;
Fig. 2 is the sectional view of the utility model piston high-temperature decompression venting valve.
Among the figure:
A-main valve control room, the B-water chamber, the C-water-inlet cavity,
101-first ball valve, the 102-modulating valve, the 103-spring, 104-pilot valve pressing plate,
The 105-pilot valve, 106-second ball valve, 107-bellows connecting plate, the 108-bellows,
109-the 3rd ball valve, the 110-guide sleeve, the 111-valve seat, 112-base spring,
The 113-defelctor apron, the 114-spiral wound gasket, the 115-spool, the 116-valve rod,
The 117-valve body, 118-first conduit, 119-second conduit, the 120-piston,
The 201-barrier film, the 202-piston rod.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 2 shows the internal structure of piston high-temperature decompression venting valve, as can be seen from the figure, the piston high-temperature decompression venting valve comprises the valve body 117 by water-inlet cavity C, main valve control room A and the one-tenth of the water chamber group B between water-inlet cavity C and main valve control room A, be used for blocking the spool 115 of medium circulation between water-inlet cavity C and the water chamber B, be used for blocking the piston 120 of medium circulation between main valve control room A and the water chamber B, be arranged in valve body 117 and run through water-inlet cavity C, water chamber B and the valve rod 116 of main valve control room A.When spool 115 embeds the valve seat 111 that is connected with valve body 117, cut off between water-inlet cavity C and the water chamber B, should possess good sealing property between spool 115 and the valve seat 111.Be provided with a guide sleeve 110 between piston 120 and the valve body 117, be used for blocking piston 120 to be arranged in the joint in water chamber and main valve control room to the guide sleeve 110 of water chamber motion.When piston 120 embeds the guide sleeve 110 that is connected with valve body 117, cut off between water chamber B and the main valve control room A.
Water-inlet cavity C is connected with main valve control room A by first conduit 118, water chamber B is connected with main valve control room A by second conduit 119, valve rod 116 is arranged in a section of main valve control room A and is arranged with bellows 108, bellows 108 is away from an end butt one bellows connecting plate 107 of water chamber B, and the periphery of bellows connecting plate 107 is fixedly connected on valve body 117.Bellows connecting plate 107 is provided with spiral wound gasket 114 with valve body 117 joints.When valve rod 116 motions, bellows 108 is movement therewith also.
One pilot valve pressing plate 104 is installed between A top, main valve control room and the bellows connecting plate 107, and pilot valve pressing plate 104 is sheathed on the valve rod 116, and pilot valve pressing plate 104 is connected with a spring 103 with the top of main valve control room A.
The end that valve rod 116 is positioned at water-inlet cavity C is arranged with a base spring 112.Valve body 117 is positioned at the end of water-inlet cavity C by a defelctor apron 113 sealings.Defelctor apron 113 is equipped with spiral wound gasket 114 with the joint of valve body 117.The spiral wound gasket that rebound elasticity is good can be adjusted automatically to the pressure thermal cycle and the vibration of pipe-line system, and inhomogeneous, the engaging force of being specially adapted to load is easily lax, temperature and pressure cycle variation, the occasion of impacting or shaking is arranged.
Those skilled in the art will recognize that; above-mentioned embodiment is exemplary; be in order better to make those skilled in the art can understand this patent; can not be interpreted as it is restriction to this patent protection domain; so long as according to spirit that this patent discloses done anyly be equal to change or modify, all fall into the scope of this patent protection.
Claims (7)
1. piston high-temperature decompression venting valve, comprise by water-inlet cavity, the valve body that main valve control room and the water chamber between described water-inlet cavity and described main valve control room are formed, be used for blocking the spool of medium circulation between described water-inlet cavity and the described water chamber, be used for blocking the piston of medium circulation between described main valve control room and the described water chamber, be arranged in described valve body and run through described water-inlet cavity, the valve rod in described water chamber and described main valve control room, described water-inlet cavity is connected with described main valve control room by first conduit, described water chamber is connected with described main valve control room by second conduit, it is characterized in that:
Described valve rod is arranged in a section of described main valve control room and is arranged with the bellows of isolating with valve body, described bellows upper end butt one bellows connecting plate, and the periphery of described bellows connecting plate is fixedly connected on described valve body.
2. piston high-temperature decompression venting valve according to claim 1 is characterized in that: described bellows connecting plate and described valve body joint are provided with spiral wound gasket.
3. piston high-temperature decompression venting valve according to claim 1, it is characterized in that: be provided with a guide sleeve between described piston and the described valve body, be used for blocking described piston is arranged in described water chamber and joint from described main valve control room to the described guide sleeve of described water chamber motion.
4. piston high-temperature decompression venting valve according to claim 1 is characterized in that: described valve rod is arranged with a base spring at an end that is positioned at described water-inlet cavity.
5. piston high-temperature decompression venting valve according to claim 2, it is characterized in that: between top, described main valve control room and the described bellows connecting plate pilot valve pressing plate is installed, described pilot valve pressing plate is sheathed on the described valve rod, and the top in described pilot valve pressing plate and described main valve control room is connected with a spring.
6. piston high-temperature decompression venting valve according to claim 1, it is characterized in that: described first conduit is provided with one and is used for regulating the modulating valve that described first conduit opens or closes, also be provided with first ball valve on described first conduit, a pressure gauge is communicated with described first conduit by described first ball valve.
7. piston high-temperature decompression venting valve according to claim 1, it is characterized in that: described second conduit is provided with a pilot valve, described pilot valve is used for regulating described second conduit and opens or closes, also be provided with second ball valve on described second conduit, a pressure gauge is communicated with described second conduit by described second ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201003634U CN202048247U (en) | 2011-04-08 | 2011-04-08 | Piston type high-temperature pressure reducing and maintaining valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201003634U CN202048247U (en) | 2011-04-08 | 2011-04-08 | Piston type high-temperature pressure reducing and maintaining valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202048247U true CN202048247U (en) | 2011-11-23 |
Family
ID=44988556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201003634U Expired - Fee Related CN202048247U (en) | 2011-04-08 | 2011-04-08 | Piston type high-temperature pressure reducing and maintaining valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202048247U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853155A (en) * | 2012-08-30 | 2013-01-02 | 杭州春江阀门有限公司 | Adjustable pressure reducing valve with high pressure reducing ratio |
| CN105090532A (en) * | 2015-09-08 | 2015-11-25 | 荆门市广恒机电设备有限公司 | Novel fire fighting control valve |
| CN105934373A (en) * | 2013-12-23 | 2016-09-07 | Trw汽车股份有限公司 | Method for fastening a gas generator and assembly having a gas generator |
| CN112128413A (en) * | 2020-09-25 | 2020-12-25 | 天津航宇卓然科技有限公司 | A deep-low temperature high-reliability pneumatic globe valve |
-
2011
- 2011-04-08 CN CN2011201003634U patent/CN202048247U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853155A (en) * | 2012-08-30 | 2013-01-02 | 杭州春江阀门有限公司 | Adjustable pressure reducing valve with high pressure reducing ratio |
| CN102853155B (en) * | 2012-08-30 | 2013-11-27 | 杭州春江阀门有限公司 | Adjustable pressure reducing valve with high pressure reducing ratio |
| CN105934373A (en) * | 2013-12-23 | 2016-09-07 | Trw汽车股份有限公司 | Method for fastening a gas generator and assembly having a gas generator |
| CN105934373B (en) * | 2013-12-23 | 2019-04-05 | Trw汽车股份有限公司 | Method for fastening a gas generator and assembly having a gas generator |
| CN105090532A (en) * | 2015-09-08 | 2015-11-25 | 荆门市广恒机电设备有限公司 | Novel fire fighting control valve |
| CN112128413A (en) * | 2020-09-25 | 2020-12-25 | 天津航宇卓然科技有限公司 | A deep-low temperature high-reliability pneumatic globe valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20180408 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |