CN203963203U - High effect of reducing pressure Pneumatic gate valve - Google Patents
High effect of reducing pressure Pneumatic gate valve Download PDFInfo
- Publication number
- CN203963203U CN203963203U CN201420409693.5U CN201420409693U CN203963203U CN 203963203 U CN203963203 U CN 203963203U CN 201420409693 U CN201420409693 U CN 201420409693U CN 203963203 U CN203963203 U CN 203963203U
- Authority
- CN
- China
- Prior art keywords
- valve
- actuator chamber
- cylinder
- piston
- air inlet
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Fluid-Driven Valves (AREA)
Abstract
The utility model relates to a kind of gate valve, particularly a kind of high effect of reducing pressure Pneumatic gate valve.Concrete technological scheme is: a kind of high effect of reducing pressure Pneumatic gate valve, include valve body, valve gap, valve seat, valve rod, flashboard and Pneumatic actuator with valve rod interlock, valve body is provided with medium inlet passage, medium flow pass and connecting passage, Pneumatic actuator includes source of the gas, the solenoid valve of cylinder and connection cylinder and source of the gas, in cylinder, be provided with piston, one end that piston and valve rod extend to outside valve gap is connected, in cylinder, be provided with and open actuator chamber and close actuator chamber, the unlatching actuator chamber place of cylinder is provided with unlatching air inlet/outlet, closing actuator chamber place is provided with and closes air inlet/outlet, in unlatching actuator chamber, be provided with one end and piston conflict, the elasticity press part that the other end and valve gap are conflicted, the unlatching actuator chamber of solenoid valve and cylinder and close and be provided with Pneumatic valve between actuator chamber.Adopt technique scheme, a kind of anti-wear, leakage, distortion, stable high effect of reducing pressure Pneumatic gate valve are provided.
Description
Technical field
The utility model relates to a kind of gate valve, particularly a kind of high effect of reducing pressure Pneumatic gate valve.
Background technique
Gate valve is a kind ofly by flashboard, to be realized and closed or open, thus the valve of cut-off pipeline medium.The gate valve that adopts pneumatic mode to control need be installed cylinder conventionally on the valve body of gate valve, in cylinder, be provided with the piston that can move along cylinder inner cavity axial reciprocating, the valve rod of piston and valve body is connected, Pneumatic actuator be generally for export the source of the gas of source of the gas and be located at source of the gas and cylinder between solenoid valve, the flashboard of gate valve is implemented lifting by piston actuated valve rod in valve body, with this, forms the unlatching of gate valve or closes, yet, gate valve opening force is different from the power of closing, especially for Wedge gate valve, what the power of closing will arrange conventionally is smaller, as long as can guarantee the sealing of flashboard sealing surface, if the power of closing of gate valve is too large, flashboard sealing surface and sealing surface of seat frictional force are excessive on the one hand easily causes that sealing surface scratch damages, second aspect easily causes that valve seat and flashboard sealing surface damage because of excessive deformation, the 3rd aspect shaft length is longer, excessive axial pressure easily produces bending deflection, the 4th aspect even can cause the excessive stretching of flange bolt in gate valve and damage and the seal leakage of middle flange.In order to ensure gate valve, under any circumstance can both open, gate valve need to arrange larger opening force conventionally, and particularly at high temperature, due to the thermal expansion of material, it is tightr that flashboard and valve seat can be fitted, and therefore needs larger opening force.
For common Pneumatic gate valve, it is essentially identical closing power and opening force, and due to the existence of valve rod, the power of closing that the gas medium of Pneumatic gate valve acts on piston is also larger than opening force, therefore, common Pneumatic gate valve, because opening force is less, in using process, gate valve after closing often can not be guaranteed to open, in order to make gate valve, open, normally heighten the bleed pressure of Pneumatic actuator, but, too high bleed pressure, tend to cause that the power of closing of gate valve is excessive, thereby produce a series of problem, therefore, there is the problem of closing power and opening force contradiction in conventional Pneumatic gate valve, cause Pneumatic gate valve often to occur variety of issue.
Summary of the invention
The deficiency existing for prior art, the utility model provides a kind of anti-wear, leakage, distortion, stable high effect of reducing pressure Pneumatic gate valve.
For achieving the above object, the utility model provides following technological scheme: a kind of high effect of reducing pressure Pneumatic gate valve, include valve body, valve gap and Pneumatic actuator, described valve body is provided with medium inlet passage, the connecting passage of medium flow pass and connecting media inlet passage and medium flow pass, the joining place of medium inlet passage and medium flow pass and connecting passage is provided with valve seat, in connecting passage, be provided with can with the flashboard of valve base sealing, valve gap place is provided with one end and extends in connecting passage and be connected with flashboard, the other end extends to outer valve rod, Pneumatic actuator includes source of the gas, the solenoid valve of the changeable air flue of cylinder and connection cylinder and source of the gas, in cylinder, be provided with piston, one end that piston and valve rod extend to outside valve gap is connected, in cylinder, be provided with actuator chamber, wherein, be positioned at the actuator chamber of piston bottom for opening actuator chamber, be positioned at the actuator chamber on piston top for closing actuator chamber, the unlatching actuator chamber place of cylinder is provided with the unlatching air inlet/outlet being connected with solenoid valve by pipeline, close actuator chamber place and be provided with the air inlet/outlet of closing being connected with solenoid valve by pipeline, it is characterized in that: in described unlatching actuator chamber, be provided with one end and piston and conflict, the elasticity press part that the other end and valve gap are conflicted, the unlatching actuator chamber of described solenoid valve and cylinder and close and be provided with the Pneumatic valve by electromagnetic valve between actuator chamber.
Adopt technique scheme, by one end being set in the unlatching actuator chamber in cylinder and piston is conflicted, the elasticity press part that the other end and valve gap are conflicted, when the source of the gas of source of the gas enters in unlatching actuator chamber by pipeline by opening air inlet/outlet, the air pressure of closing in actuator chamber of cylinder is discharged from, air pressure in opening actuator chamber is implemented to conflict to piston, simultaneously elasticity press part has lost the air pressure of closing in the actuator chamber constraint to it, can assist gas pressure fast by piston jack-up, make piston (being the actuator chamber of closing of cylinder) movement fast towards cylinder top, when moving, is with in piston ovable valve stem and flashboard to rise in valve body, make medium inlet passage and the conducting of medium flow pass of valve body, valve is in opening state, in this process, due to the effect that compresses of elasticity press part, the elastic force of elasticity press part, in conjunction with the atmospheric pressure of source of the gas, makes the unlatching dynamics of valve become large, when the source of the gas of source of the gas is entered into while closing in actuator chamber by closing air inlet/outlet by pipeline, air pressure in the unlatching actuator chamber of cylinder is discharged from, air pressure is implemented to conflict to piston, also need to overcome the elastic force of elasticity press part simultaneously, the closing pressure of valve is reduced, flashboard enters in connecting passage completely, impels the medium inlet passage of valve body and medium to flow out channel enclosed, and valve is in closed condition, in this process, traditional valve opening suffered driving pressure when closing is consistent, in the time that valve closing can being caused, between flashboard and valve seat, there is friction or collision and valve rod bending deflection, in order to prevent that this type of situation from occurring, valve is in closing process, entering into the air pressure of closing actuator chamber not only needs piston to compress, also need to overcome the elastic force of elasticity press part simultaneously, the kinetic energy of air pressure is consumed, the pressure of piston in closing process diminishes, thereby to the flashboard in valve, valve seat and valve rod have played protective action, can effectively prevent that valve body from wearing and tearing, leak and distortion.
The utility model is further set to: elasticity press part includes to be located at and opens in actuator chamber and Compress Spring that axially one end and piston conflict, the other end and valve gap are conflicted, and piston is provided with the end face of this Compress Spring conflict the spring seat that supplies Compress Spring to locate.
Adopt technique scheme, elasticity press part is set as to Compress Spring, arrange so simple in structure, easy for installationly, the setting of piston upper spring seat can be effectively implemented location to the axial position of Compress Spring, prevents that Compress Spring is subjected to displacement and has influence on unlatching or the closing pressure of valve.
The utility model is further set to: Pneumatic valve include with the air inlet port of source of the gas conducting, by solenoid-driven can with the conducting of air inlet port or with valve opening air inlet and outlet end mouth and the valve closing air inlet and outlet end mouth of outside conducting, valve opening air inlet and outlet end mouth and valve closing air inlet and outlet end mouth be the unlatching air inlet/outlet by connecting pipeline and cylinder and close air inlet/outlet conducting respectively.
Adopt technique scheme, because the aperture of solenoid valve is mostly less, air inflow is little, and driving pressure cannot be guaranteed, if adopt the larger solenoid valve of bore, can make cost of production improve, the utility model has separately been established Pneumatic valve, and Pneumatic valve is cheap, and solenoid valve implements as the port of controlling in Pneumatic valve the switch switching, not only easy to operate, and the working state when making the unlatching of valve or closing is more stable.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment's structural representation;
Fig. 2 is the structural representation of Pneumatic actuator in the utility model embodiment.
Embodiment
As Fig. 1, a kind of high effect of reducing pressure Pneumatic gate valve shown in Fig. 2, include valve body 1, valve gap 2 and Pneumatic actuator 3, valve body 1 is provided with medium inlet passage 11, the connecting passage 13 of medium flow pass 12 and connecting media inlet passage 11 and medium flow pass 12, medium inlet passage 11 and medium flow pass 12 are provided with valve seat 4 with the joining place of connecting passage 13, in connecting passage 13, be provided with the flashboard 5 that can seal with valve seat 4, valve gap 2 places are provided with one end and extend in connecting passage 13 and be connected with flashboard 5, the other end extends to outer valve rod 6, Pneumatic actuator 3 includes source of the gas 31, the solenoid valve 33 of the changeable air flue of cylinder 32 and connection cylinder 32 and source of the gas 31, source of the gas 31 is comprised of air pump and gas tank, in cylinder 32, be provided with piston 34, piston 34 is connected with one end that valve rod 6 extends to outside valve gap 2, in cylinder 32, be provided with actuator chamber, wherein, be positioned at the actuator chamber of piston 34 bottoms for opening actuator chamber 321, be positioned at the actuator chamber on piston 34 tops for closing actuator chamber 322, unlatching actuator chamber 321 places of cylinder 32 are provided with the unlatching air inlet/outlet 323 being connected with solenoid valve 33 by pipeline 7, close actuator chamber 322 places be provided with by pipeline 7, be connected with solenoid valve 33 close air inlet/outlet 324, in unlatching actuator chamber 321, be provided with one end and piston 34 conflicts, the elasticity press part 8 that the other end and valve gap 2 are conflicted, the unlatching actuator chamber 321 of solenoid valve 33 and cylinder 32 and close and be provided with the Pneumatic valve 9 of controlling by solenoid valve 33 between actuator chamber 322.In such scheme, by interior one end and the piston 34 that arrange of the unlatching actuator chamber 321 in cylinder 32, conflict, the elasticity press part 8 that the other end and valve gap 2 are conflicted, when the source of the gas of source of the gas 31 is entered into and opens actuator chamber 321 when interior by opening air inlet/outlet 323 by pipeline 7, the air pressure of closing in actuator chamber 322 of cylinder 32 is discharged from, air pressure in opening actuator chamber 321 is implemented to conflict to piston 34, simultaneously elasticity press part 8 has lost the air pressure of closing in actuator chamber 322 constraint to it, can assist gas pressure by piston 34 jack-up, make piston 34 fast towards cylinder 32 tops (be cylinder 32 close actuator chamber 322) mobile, when moving, is with in piston 34 ovable valve stem 6 and flashboard 5 in the interior rise of valve body 1, make the medium inlet passage 11 and 12 conductings of medium flow pass of valve body 1, valve is in opening state, in this process, due to the effect that compresses of elasticity press part 8, the air pressure of source of the gas 31 outputs combines the elastic pressure of elasticity press part 8, makes the cracking pressure of valve become large, when the source of the gas of source of the gas 31 is entered into and closes actuator chamber 322 when interior by closing air inlet/outlet 324 by pipeline 7, air pressure in the unlatching actuator chamber 321 of cylinder 32 is discharged from, air pressure is implemented to conflict to piston 34, also need to overcome the elastic force of elasticity press part 8 simultaneously, the closing pressure of valve is reduced, flashboard 5 enters in connecting passage 13 completely, impels the medium inlet passage 11 and 12 sealings of medium flow pass of valve body 1, and valve is in closed condition, in this process, because valve opening suffered driving air pressure when closing is consistent, in the time that valve closing can being caused, between flashboard 5 and valve seat 4, there are friction or collision and valve rod 6 bending deflections, in order to prevent that this type of situation from occurring, valve is in closing process, entering into the air pressure of closing actuator chamber 322 not only needs piston 34 to compress, also need to overcome the elastic force of elasticity press part 8 simultaneously, the kinetic energy of air pressure is consumed, thereby reduced the closing pressure of valve, to the flashboard 5 in valve, valve seat 4 and valve rod 6 have played protective action, can effectively prevent that valve body 1 from wearing and tearing, leak and distortion.It should be noted that, in order to make the unlatching actuator chamber 321 of cylinder 32 and to close between actuator chamber 322, form sealing, stablize cracking pressure and the closing pressure of valve body 1, between the outer circumferential face of piston 34 and the inwall of cylinder 32, be provided with seal ring 341.
In the utility model embodiment, for the ease of installing, elasticity press part 8 includes to be located at and opens in actuator chamber 321 and Compress Spring that axially one end and piston 34 conflicts, the other end and valve gap 2 are conflicted, and piston 34 is provided with the end face that this Compress Spring is conflicted the spring seat 342 that supplies Compress Spring to locate.The setting of spring seat 342 can be effectively implemented location to the axial position of Compress Spring, prevents that Compress Spring is subjected to displacement and has influence on unlatching or the closing pressure of valve.This spring seat 342 is one-body molded with piston 34, arranges like this and is convenient to processing and installs, and also can avoid spring seat 342 and piston 34 to come off simultaneously and cause Compress Spring cannot implement the situation of location.
In the utility model embodiment, because the aperture of solenoid valve 33 is mostly less, the air pressure in source of the gas 31 is directly entered in cylinder 32 and sometimes cannot be driven piston 34 by solenoid valve 33; Pneumatic valve 9 in the utility model embodiment include with the air inlet port 91 of source of the gas 31 conductings, by solenoid valve 33 drive can with 91 conductings of air inlet port or with valve opening air inlet and outlet end mouth 92 and the valve closing air inlet and outlet end mouth 93 of outside conducting, valve opening air inlet and outlet end mouth 92 and valve closing air inlet and outlet end mouth 93 be the unlatching air inlet/outlet 323 by connecting pipeline and cylinder 32 and close air inlet/outlet 324 conductings respectively.Solenoid valve 33 implements as the port of controlling in Pneumatic valves 9 switch switching, not only easy to operate, and the working state when making the unlatching of valve or closing is more stable.
Claims (3)
1. a high effect of reducing pressure Pneumatic gate valve, include valve body, valve gap and Pneumatic actuator, described valve body is provided with medium inlet passage, the connecting passage of medium flow pass and connecting media inlet passage and medium flow pass, the joining place of medium inlet passage and medium flow pass and connecting passage is provided with valve seat, in connecting passage, be provided with can with the flashboard of valve base sealing, valve gap place is provided with one end and extends in connecting passage and be connected with flashboard, the other end extends to outer valve rod, Pneumatic actuator includes source of the gas, the solenoid valve of the changeable air flue of cylinder and connection cylinder and source of the gas, in cylinder, be provided with piston, one end that piston and valve rod extend to outside valve gap is connected, in cylinder, be provided with actuator chamber, wherein, be positioned at the actuator chamber of piston bottom for opening actuator chamber, be positioned at the actuator chamber on piston top for closing actuator chamber, the unlatching actuator chamber place of cylinder is provided with the unlatching air inlet/outlet being connected with solenoid valve by pipeline, close actuator chamber place and be provided with the air inlet/outlet of closing being connected with solenoid valve by pipeline, it is characterized in that: in described unlatching actuator chamber, be provided with one end and piston and conflict, the elasticity press part that the other end and valve gap are conflicted, the unlatching actuator chamber of described solenoid valve and cylinder and close and be provided with the Pneumatic valve by electromagnetic valve between actuator chamber.
2. high effect of reducing pressure Pneumatic gate valve according to claim 1, it is characterized in that: described elasticity press part includes to be located at and opens in actuator chamber and Compress Spring that axially one end and piston conflict, the other end and valve gap are conflicted, and piston is provided with the end face of this Compress Spring conflict the spring seat that supplies Compress Spring to locate.
3. high effect of reducing pressure Pneumatic gate valve according to claim 1 and 2, it is characterized in that: described Pneumatic valve include with the air inlet port of source of the gas conducting, by solenoid-driven can with the conducting of air inlet port or with valve opening air inlet and outlet end mouth and the valve closing air inlet and outlet end mouth of outside conducting, valve opening air inlet and outlet end mouth and valve closing air inlet and outlet end mouth be the unlatching air inlet/outlet by connecting pipeline and cylinder and close air inlet/outlet conducting respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409693.5U CN203963203U (en) | 2014-07-23 | 2014-07-23 | High effect of reducing pressure Pneumatic gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409693.5U CN203963203U (en) | 2014-07-23 | 2014-07-23 | High effect of reducing pressure Pneumatic gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203963203U true CN203963203U (en) | 2014-11-26 |
Family
ID=51923785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420409693.5U Withdrawn - After Issue CN203963203U (en) | 2014-07-23 | 2014-07-23 | High effect of reducing pressure Pneumatic gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203963203U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100762A (en) * | 2014-07-23 | 2014-10-15 | 超达阀门集团股份有限公司 | Efficient pneumatic relief gate valve |
| CN105202252A (en) * | 2015-10-12 | 2015-12-30 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Drive device of pneumatic proportional valve |
| CN110566713A (en) * | 2019-10-12 | 2019-12-13 | 中船动力研究院有限公司 | Exhaust valve driving mechanism and exhaust valve |
-
2014
- 2014-07-23 CN CN201420409693.5U patent/CN203963203U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100762A (en) * | 2014-07-23 | 2014-10-15 | 超达阀门集团股份有限公司 | Efficient pneumatic relief gate valve |
| CN105202252A (en) * | 2015-10-12 | 2015-12-30 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Drive device of pneumatic proportional valve |
| CN105202252B (en) * | 2015-10-12 | 2018-06-19 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | A kind of driving device of pneumatic proportional valve |
| CN110566713A (en) * | 2019-10-12 | 2019-12-13 | 中船动力研究院有限公司 | Exhaust valve driving mechanism and exhaust valve |
| CN110566713B (en) * | 2019-10-12 | 2024-05-17 | 中船动力研究院有限公司 | Exhaust valve driving mechanism and exhaust valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104100762B (en) | High effect of reducing pressure Pneumatic gate valve | |
| CN203963203U (en) | High effect of reducing pressure Pneumatic gate valve | |
| EP2187105A4 (en) | Suck-back valve | |
| CN204226809U (en) | A kind of stop valve structure | |
| CN202732103U (en) | Connecting structure of supercharger exhaust gas bypass valve | |
| CN203240030U (en) | Pilot-operated type safety relief valve | |
| CN203963206U (en) | Can reduce the Pneumatic gate valve of valve closing pressure | |
| CN104527630B (en) | A kind of piston type pneumatic control stop valve | |
| CN203686216U (en) | Zero-friction opening and closing ball valve | |
| CN102954275A (en) | Centre-type steam solenoid valve | |
| CN203963205U (en) | Pneumatic gate valve | |
| CN202901480U (en) | Centre type steam electromagnetic valve | |
| CN201982674U (en) | Pneumatic piston type on/off valve | |
| CN104696575A (en) | Electromagnetic valve for low temperature pipeline | |
| CN204573137U (en) | A kind of pneumatic expansion formula butterfly valve | |
| CN204961859U (en) | Electronic aseptic stop valve of manual pneumatics | |
| CN204493840U (en) | Cryogenic pipe solenoid valve | |
| CN203628011U (en) | Out-leakage-preventing self-sealing valve | |
| CN209743602U (en) | Low-flow-resistance multifunctional liquid methane bacterium type valve | |
| CN203656337U (en) | Combined valve execution device | |
| CN203442172U (en) | Self-operated program-controlled valve | |
| CN211398640U (en) | Large-diameter high-pressure stop valve | |
| CN105736775A (en) | Pipeline fuel gas safe self-closing valve | |
| CN203477376U (en) | Gate valve | |
| CN204176096U (en) | A kind of valve positioner Shang Fa island |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Qingtian Chaoda Casting Co., Ltd. Assignor: Chaoda Valve Group Co., Ltd. Contract record no.: 2015330000190 Denomination of utility model: Efficient pneumatic relief gate valve Granted publication date: 20141126 License type: Exclusive License Record date: 20150703 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141126 Effective date of abandoning: 20160511 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |