CN104089057A - Overpressure stop valve - Google Patents
Overpressure stop valve Download PDFInfo
- Publication number
- CN104089057A CN104089057A CN201410356687.2A CN201410356687A CN104089057A CN 104089057 A CN104089057 A CN 104089057A CN 201410356687 A CN201410356687 A CN 201410356687A CN 104089057 A CN104089057 A CN 104089057A
- Authority
- CN
- China
- Prior art keywords
- cylinder sleeve
- piston
- valve body
- return spring
- joint
- 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.)
- Pending
Links
Classifications
-
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/025—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining open after return of the normal pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention relates to an overpressure stop valve which is composed of a valve body, two sets of cylinder sleeves, pistons, return springs, stop pins, fluid directors and connectors. The valve body is of a tubular structure, one cylinder sleeve is arranged at one end of an inner hole of the valve body, one piston is arranged in the cylinder sleeve, one return spring is arranged between a piston shaft and the cylinder sleeve, one stop pin is arranged on the piston shaft, the outer end of the cylinder sleeve is connected with one connector, and one fluid director is arranged between the cylinder sleeve and the connector. The other end of the inner hole of the valve body is arranged symmetrical with the structure and is sequentially provided with one cylinder sleeve, one piston, one return spring, one stop pin, one connector and other parts. In an initial state, it needs to be guaranteed that the interiors of the two connectors are kept in an intercommunicated state through the structures and the positions of the parts. The overpressure stop valve has the advantages that the overpressure stop valve is installed on a gas pipeline, when flow or pressure of a user side on the pipeline differs to a certain degree, a gas source can be emergently cut off, and therefore normal operation of a pipe network and use safety of a user are guaranteed.
Description
Technical field
The present invention relates to the limiting pressure closing valve that a kind of burning line is used.
Background technique
Conventionally the user side of domestic gas pipe network may occur, because hose aging, mouse bite or artificial damage etc., causing sebific duct to rupture, and causes gas leakage and the security incident such as blast.
In addition, along with resident living level improves constantly, there is quite a few resident to install and use gas water-heater.Install when water heater, have some not possess installation personnels that qualification is installed in the time connecing cool and hot water pipe, mistake intake pipe is connected on fuel tube interface.Because gaseous-pressure is less than hydraulic pressure, cause gas meter waterlogged damage.As found not in time, possible gas riser and underground courtyard heating pipe network are all intake, and cause community to be stopped the supple of gas or steam.
For guaranteeing that pipe network facilities normally moves, need to take the measure that the pipeline of user side is protected.
Summary of the invention
Object of the present invention is exactly above abnormal in order to prevent that user side from occurring, and guarantees the normal operation of pipe network facilities safety, and a kind of limiting pressure closing valve is provided.
To achieve these goals, the present invention has adopted following technological scheme:
A kind of limiting pressure closing valve, comprises a valve body and symmetrically arranged two groups of cylinder sleeves, piston, return spring, position limit pin, fluid director, joint; Described valve body is tubular structure, and one end of its endoporus is provided with cylinder sleeve, is provided with piston in cylinder sleeve, between piston shaft and cylinder sleeve, is provided with return spring, and piston shaft is provided with position limit pin, and cylinder sleeve outer end is connected with joint, between cylinder sleeve and joint, is provided with fluid director; The other end and the said structure of valve body inner bore are symmetrical arranged, and are provided with successively the parts such as cylinder sleeve, piston, return spring, position limit pin, joint; Under original state, the structure of each parts and position should ensure the inner maintenance of two joints intercommunication.
This limiting pressure closing valve in use, connects after gas meter and before kitchen range between valve sebific duct; When occurring that hose aging, mouse bite and artificial damage etc., cause sebific duct to rupture, now gas flow explodes, and the pressure of combustion gas self can promote the piston movement of connection rubber tube one side, and this side fluid director of shutoff cuts off source of the gas automatically.Can effectively stop the security incident such as blast occurring because revealing, also can protect domestic gas table normally to use, prevent from exceeding because gas flow is excessive table range, bring the impact failure that gas meter cannot make up.
In addition, when mistake intake pipe is connected to fuel tube interface, while causing tap water to enter fuel tube, because gaseous-pressure is less than hydraulic pressure, hydraulic pressure will promote to connect the piston movement of gas meter one side, this side fluid director of shutoff, cuts off current automatically.Can prevent that tap water from entering gas meter, cause gas meter waterlogged damage, also can prevent gas riser and the water inlet of underground courtyard heating pipe network, cause community to be stopped the supple of gas or steam.
In sum, adopt device of the present invention, be arranged on fuel gas pipeline, in the time that certain difference occurs for the flow of user side on pipeline or pressure, can realize emergency cut-off source of the gas, thereby ensure the normal operation of pipe network and user's use safety.
Brief description of the drawings
Fig. 1 is original state mounted inside structural representation of the present invention.
Fig. 2 is the decomposition texture schematic diagram of Fig. 1.
Embodiment
By reference to the accompanying drawings the present invention is described in further detail below by specific embodiment:
Referring to Fig. 1, Fig. 2, a kind of limiting pressure closing valve, is made up of a valve body 3 and symmetrically arranged two groups of cylinder sleeves 2, piston 5, return spring 7, position limit pin 6, fluid director 4, joint 1.
As shown in Figure 1 and Figure 2, described valve body 3 is round tube shape structure, and the upper end of its endoporus is threaded with cylinder sleeve 2; In cylinder sleeve 2, be provided with piston 5, the intermediate clapboard in cylinder sleeve 2 is web pattern, under the axial direction of piston 5, passes intermediate clapboard, is provided with return spring 7 on the axle of piston 5 and between the dividing plate of cylinder sleeve 2, is provided with position limit pin 6 is used for fixing return spring 7 in the lower end of the axle of piston 5; Cylinder sleeve 2 outer ends are threaded with joint 1, between cylinder sleeve 2 and joint 1, are provided with fluid director 4, and fluid director 4 inside are web pattern;
The lower end of valve body 3 endoporus and the symmetrical setting of said structure, be provided with the parts such as another group cylinder sleeve 2, piston 5, return spring 7, position limit pin 6, fluid director 4, joint 1 successively.
As shown in Figure 1, under original state, the structure of each parts and position should ensure the inner intercommunication state that keeps of limiting pressure closing valve, and in this example, the intermediate clapboard of fluid director 4 and cylinder sleeve 2 is disc shape, by the gap of return spring 7 control pistons 5 and fluid director 4, can keep the circulation of combustion gas.
Above-described is only one embodiment of the present invention.It should be pointed out that for the person of ordinary skill of the art, under the premise without departing from the principles of the invention, can also make apparent some conversion or substitute and remodeling, these also should be considered as belonging to protection scope of the present invention.
Claims (1)
1. a limiting pressure closing valve, is characterized in that: comprise a valve body and symmetrically arranged two groups of cylinder sleeves, piston, return spring, position limit pin, fluid director, joint; Described valve body is tubular structure, and one end of its endoporus is provided with cylinder sleeve, is provided with piston in cylinder sleeve, between piston shaft and cylinder sleeve, is provided with return spring, and piston shaft is provided with position limit pin, and cylinder sleeve outer end is connected with joint, between cylinder sleeve and joint, is provided with fluid director; The other end and the said structure of valve body inner bore are symmetrical arranged, and are provided with successively the parts such as cylinder sleeve, piston, return spring, position limit pin, joint; Under original state, the structure of each parts and position should ensure the inner maintenance of two joints intercommunication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356687.2A CN104089057A (en) | 2014-07-24 | 2014-07-24 | Overpressure stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356687.2A CN104089057A (en) | 2014-07-24 | 2014-07-24 | Overpressure stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104089057A true CN104089057A (en) | 2014-10-08 |
Family
ID=51636799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410356687.2A Pending CN104089057A (en) | 2014-07-24 | 2014-07-24 | Overpressure stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104089057A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424119A (en) * | 2015-11-11 | 2016-03-23 | 四川鹏翔电子科技有限责任公司 | Intelligent gas meter with water inlet detection function |
| CN109595376A (en) * | 2017-12-11 | 2019-04-09 | 中国船舶重工集团公司第七0五研究所 | A kind of novel self feed back excess pressure cutout device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3683957A (en) * | 1970-09-29 | 1972-08-15 | Asa D Sands | Safety valve |
| US3910306A (en) * | 1972-11-29 | 1975-10-07 | Karl Gustav Verner Ohrn | Safety cut-off valve |
| CN2665482Y (en) * | 2003-11-13 | 2004-12-22 | 吴章康 | Combustion gas safety automatic protector |
| CN2703934Y (en) * | 2004-06-16 | 2005-06-08 | 陈庆山 | Automatic-controlled safety device for pipeline gas |
| KR20050087770A (en) * | 2005-07-01 | 2005-08-31 | 박실상 | A safety valve for supply of gas |
| CN2869509Y (en) * | 2006-02-10 | 2007-02-14 | 福清市兴融新电子科技有限公司 | Domestic gas leak cut-off safety valve |
| CN200946709Y (en) * | 2006-07-28 | 2007-09-12 | 玉环江林水暖管业有限公司 | Leakage-proof valve for coal gas |
| CN204239833U (en) * | 2014-07-24 | 2015-04-01 | 蚌埠新奥燃气发展有限公司 | Limiting pressure closing valve |
-
2014
- 2014-07-24 CN CN201410356687.2A patent/CN104089057A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3683957A (en) * | 1970-09-29 | 1972-08-15 | Asa D Sands | Safety valve |
| US3910306A (en) * | 1972-11-29 | 1975-10-07 | Karl Gustav Verner Ohrn | Safety cut-off valve |
| CN2665482Y (en) * | 2003-11-13 | 2004-12-22 | 吴章康 | Combustion gas safety automatic protector |
| CN2703934Y (en) * | 2004-06-16 | 2005-06-08 | 陈庆山 | Automatic-controlled safety device for pipeline gas |
| KR20050087770A (en) * | 2005-07-01 | 2005-08-31 | 박실상 | A safety valve for supply of gas |
| CN2869509Y (en) * | 2006-02-10 | 2007-02-14 | 福清市兴融新电子科技有限公司 | Domestic gas leak cut-off safety valve |
| CN200946709Y (en) * | 2006-07-28 | 2007-09-12 | 玉环江林水暖管业有限公司 | Leakage-proof valve for coal gas |
| CN204239833U (en) * | 2014-07-24 | 2015-04-01 | 蚌埠新奥燃气发展有限公司 | Limiting pressure closing valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424119A (en) * | 2015-11-11 | 2016-03-23 | 四川鹏翔电子科技有限责任公司 | Intelligent gas meter with water inlet detection function |
| CN109595376A (en) * | 2017-12-11 | 2019-04-09 | 中国船舶重工集团公司第七0五研究所 | A kind of novel self feed back excess pressure cutout device |
| CN109595376B (en) * | 2017-12-11 | 2019-10-18 | 中国船舶重工集团公司第七0五研究所 | A kind of novel self feed back excess pressure cutout device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141008 |