CN2913781Y - Pressure regulating dump valve - Google Patents
Pressure regulating dump valve Download PDFInfo
- Publication number
- CN2913781Y CN2913781Y CN 200620118680 CN200620118680U CN2913781Y CN 2913781 Y CN2913781 Y CN 2913781Y CN 200620118680 CN200620118680 CN 200620118680 CN 200620118680 U CN200620118680 U CN 200620118680U CN 2913781 Y CN2913781 Y CN 2913781Y
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- Prior art keywords
- valve
- seat
- base
- valve body
- spring
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- Expired - Fee Related
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Abstract
The utility model discloses a pressure-regulating shut-off valve which comprises a gas inlet and a gas outlet arranged at two ends of the valve body, a valve opening arranged in the valve body, a base seat and an upper seat arranged above the valve body, a chamber formed between the base seat and the upper seat, a guiding sleeve arranged at the center of the base seat, a valve rod passing through the guiding sleeve, a valve stopper connected with the lower end of the valve rod, a handle connected with the upper end of the valve rod, a spring arranged between the valve stopper and the base seat, steel balls arranged in concave part at the middle part of the valve rod, a ball-protecting sleeve arranged at outside of the steel balls and provided with a protrusion, an active sleeve arranged outside the ball-protecting sleeve, a film fixed between the active sleeve and the ball-protecting sleeve and used for separating the chamber into an upper sub-chamber (sealed) and a lower sub-chamber (communicated with the gas outlet), a spring seat arranged above the active sleeve, and a regulating spring arranged between the spring seat and a regulating nut on the upper end of the upper seat. The utility model has the advantages of simple structure, low cost, no need for external energy source (achieving shut off only by pressure of fuel gas), high safety, and high sensitivity.
Description
Technical field
The utility model relates to the device that plays pressure regulation and cutting action in a kind of fuel gas pipeline, specifically a kind of pressure regulation cut-off valve.
Background technique
The life of urban and rural residents all be unable to do without combustion gas.In the combustion gas network transmission process, for reducing loss and improving quantity delivered, reduce the auxilliary cost of establishing conveyance conduit, combustion gas is high pressure conditions carries, and enters before the every family, and convert low-pressure state to could use.Because the inflammable and explosive property of combustion gas itself, all place safety above the other things in development combustion gas cause in countries in the world.User's burner voltage adjusting device, the important tie that connects gas transmission and distribution network and user exactly, it is the terminal of gas transmission and distribution network, be again the equipment foremost of user's gas pipeline, the technical order of user's gas voltage adjusting device and security feature are extremely important rings in the gas transmission ﹠ distribution link.Current domestic existing pressure governor, mainly be divided into two kinds of direct acting type and indirect acting types, but product that pressure regulation and safety cut-off is not integrated all, the pressure governor of the external report of finding, also divide directly and indirect two big classes, the product of existing in recent years band shut-off means comes out, but because of structure too complexity, inconvenient maintenance, in use be subjected to bigger restriction, also be not suitable for the national conditions of China.For tightening security, need between gas pressure regulator, governor and user's gas equipment, Emergeny Cutoff Valves be installed, owing to need the external control signal energy (electronic or pneumatic) in the prior art, in addition report to the police when also being applied to the indoor generation gas leakage of user mostly and the state of emergency cut-off gas supply, the accident that is caused for contingent superpressure air feed is almost without any the measure of taking precautions against, in order to ensure the safety of gas supply.
Summary of the invention
The technical problems to be solved in the utility model provides that a kind of volume is little, cost is low, sensitive combustion gas pressure regulation cut-off valve.
The technological scheme that its technical problem that solves the utility model adopts is: it comprises valve body, the valve body two ends are respectively equipped with suction port and air outlet, be provided with valve port in the valve body, described valve body top is provided with base, the base top is connected with the seat of honour, form cavity between the base and the seat of honour, described base center is provided with guide sleeve, and the guide sleeve center is installed with valve rod, the valve rod lower end is connected with valve plug, be provided with spring between valve plug and the base, described valve rod upper end is connected with handle, and the valve rod middle part caves inward, recess is provided with steel ball, the steel ball outside is provided with protects the pearl cover, protects the position that pearl puts corresponding steel ball and is provided with projection, protects the pearl cover outside and is provided with movable sheath, movable sheath and protect between the pearl cover and be fixed with diaphragm, diaphragm is divided into epicoele and cavity of resorption with the chamber between the described base and the seat of honour, the epicoele sealing, and cavity of resorption is communicated with the air outlet of valve body; Described movable sheath top is provided with spring seat, is provided with Regulation spring between spring seat and the adjusting mother who is located on the seat of honour.
Pressure regulation cut-off valve of the present utility model is inserted in the fuel gas pipeline, open valve, this moment, steel ball was positioned at the lower end at valve rod medial recess place, protects the projection that pearl puts steel ball is withstood, and made valve rod stiff, played the pressure regulation effect this moment.When the output gaseous-pressure of valve raise, this propagation of pressure was in cavity of resorption, and the pressure of cavity of resorption is greater than the pressure of epicoele, when pressure surpasses the safety value of setting, the pressure that following cavity pressure overcomes Regulation spring is the diaphragm jack-up that makes progress, and drives simultaneously to protect the pearl cover and move upward, and protects the projection that pearl puts and no longer withstands steel ball, steel ball expands outwardly, deviate from the depression of valve rod, under the effect of spring, valve plug and valve rod together move downward, with the valve port sealing, reach the purpose of cutting off pipeline.
For the structure that makes this valve is more stable, described guide sleeve is fixed on the base by set screw nut.
Tighter for the sealing that makes valve, between described base and the pilot valve, between base and the valve body and valve plug bottom is respectively equipped with sealing gasket.
In order to prevent that handle from suffering damage, at the outer protecting jacket that then is provided with of handle.
In order to make reaction sensitiveer, the angle of described depression is 120 degree.
The beneficial effect that the utility model produces is, and is simple in structure, cost is low, only needs can realize cutting off by the pressure of combustion gas, does not need outside resources, and is safe and reliable, and highly sensitive.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of pressure regulation cut-off valve of the present utility model under in working order;
Fig. 2 is the structural representation of pressure regulation cut-off valve of the present utility model under dissengaged positions;
Among the figure: 1. handle, 2. regulate female, 3. Regulation spring, 4. spring seat; 5. the seat of honour, 6. movable sheath 7. protects the pearl cover, 8. diaphragm; 9. valve rod, 10. base, 11. springs, 12. valve plugs; 13. the air outlet, 14. valve bodies, 15. protecting jackets, 16. steel balls; 17. projection, 18. guide sleeves, 19. set screw nuts, 20. suction ports; 21. valve port, 22. epicoeles, 23. cavity of resorptions.
Embodiment
Pressure regulation cut-off valve under the working state as shown in Figure 1, it comprises valve body 14, valve body 14 two ends are respectively equipped with suction port 20 and air outlet 13, be provided with valve port 21 in the valve body 14, valve body 14 tops are provided with base 10, base 10 tops are connected with the seat of honour 5, form cavity between the base 10 and the seat of honour 5, base 10 centers are provided with guide sleeve 18, guide sleeve 18 centers are installed with valve rod 9, and valve rod 9 lower ends are connected with valve plug 12, are provided with spring 11 between valve plug 12 and the base 10, valve rod 9 upper ends are connected with handle 1, and handle 1 arranged outside has protecting jacket 15; Valve rod 9 middle parts cave inward, and the angle of depression is 120 degree, and recess is provided with steel ball 16, steel ball 16 outsides are provided with protects pearl cover 7, the position of protecting corresponding steel ball 16 on the pearl cover 7 is provided with projection 17, and projection 17 is withstood steel ball 16 does not just allow it deviate from from recess, thereby valve rod 9 is fixed.Protect pearl and overlap 7 outsides and be provided with movable sheath 6, movable sheath 6 and protect between the pearl cover 7 and be fixed with diaphragm 8, diaphragm 8 is divided into epicoele 22 and cavity of resorption 23 with the chamber between base 10 and the seat of honour 5, and epicoele 22 seals, and cavity of resorption 23 is communicated with the air outlet 13 of valve body 14; Described movable sheath 6 tops are provided with spring seat 4, spring seat 4 and be located between the adjusting mother 2 of 5 upper ends, the seat of honour and be provided with Regulation spring 3.In order to make sealability better, between base 10 and the guide sleeve 18, between base 10 and the valve body 14 and valve plug 12 bottoms are respectively equipped with sealing gasket.
Pressure regulation cut-off valve of the present utility model is inserted fuel gas pipeline, and high-pressure gas enters from suction port 20, becomes low-pressure fuel gas 13 outputs from the air outlet through the throttling action of valve port 21.If the gaseous-pressure of pressure regulation cut-off valve output raises, because connection effect, pressure between the base 10 and the seat of honour 5 in the cavity of resorption 23 is also along with rising, pressure difference appears between cavity of resorption 23 and the epicoele 22, when delivery pressure surpasses safety value, pressure difference overcomes the elastic force of Regulation spring 3 just, diaphragm 8 is upwards promoted, protect pearl cover 7 and movable sheath 6 and move upward thereupon, the projection 17 of protecting on the pearl cover 7 no longer can be withstood steel ball 16, under the pressure of spring 11, valve plug 12 drives valve rod 9 a downward power, because the angle of valve rod 9 recess is 120 degree, steel ball 16 is extruded from recess under the effect of this power, no longer can limit the motion of valve rod 9, so valve rod 9 and valve plug 12 move downward together,, thereby fuel gas pipeline is cut off valve port 21 sealings, reached purpose of safety, the state of this moment as shown in Figure 2.
Claims (5)
1, a kind of pressure regulation cut-off valve, comprise valve body, the valve body two ends are respectively equipped with suction port and air outlet, be provided with valve port in the valve body, it is characterized in that, described valve body top is provided with base, the base top is connected with the seat of honour, form cavity between the base and the seat of honour, described base center is provided with guide sleeve, and the guide sleeve center is installed with valve rod, the valve rod lower end is connected with valve plug, be provided with spring between valve plug and the base, described valve rod upper end is connected with handle, and the valve rod middle part caves inward, recess is provided with steel ball, the steel ball outside is provided with protects the pearl cover, protects the position that pearl puts corresponding steel ball and is provided with projection, protects the pearl cover outside and is provided with movable sheath, movable sheath and protect between the pearl cover and be fixed with diaphragm, diaphragm is divided into epicoele and cavity of resorption with the chamber between the described base and the seat of honour, the epicoele sealing, and cavity of resorption is communicated with the air outlet of valve body; Described movable sheath top is provided with spring seat, is provided with Regulation spring between spring seat and the adjusting mother who is located on the seat of honour.
2, pressure regulation cut-off valve according to claim 1 is characterized in that, described guide sleeve is fixed on the base by set screw nut.
3, pressure regulation cut-off valve according to claim 1 is characterized in that, between described base and the pilot valve, between base and the valve body and valve plug bottom is respectively equipped with sealing gasket.
4, according to claim 1,2 or 3 described pressure regulation cut-off valves, it is characterized in that the outer protecting jacket that then is provided with of described handle.
5, pressure regulation cut-off valve according to claim 1 is characterized in that, the angle of described depression is 120 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620118680 CN2913781Y (en) | 2006-06-14 | 2006-06-14 | Pressure regulating dump valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620118680 CN2913781Y (en) | 2006-06-14 | 2006-06-14 | Pressure regulating dump valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2913781Y true CN2913781Y (en) | 2007-06-20 |
Family
ID=38168380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620118680 Expired - Fee Related CN2913781Y (en) | 2006-06-14 | 2006-06-14 | Pressure regulating dump valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2913781Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672066A (en) * | 2013-12-05 | 2014-03-26 | 吴忠仪表有限责任公司 | Novel stop valve |
| CN114060544A (en) * | 2021-12-01 | 2022-02-18 | 北京市公用事业科学研究所 | Structure of gas pressure regulating device with pressure regulating and cutting integrated functions |
| CN114370519A (en) * | 2022-01-20 | 2022-04-19 | 北京市公用事业科学研究所 | Pressure regulating structure with overhead cutting-off function |
-
2006
- 2006-06-14 CN CN 200620118680 patent/CN2913781Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672066A (en) * | 2013-12-05 | 2014-03-26 | 吴忠仪表有限责任公司 | Novel stop valve |
| CN103672066B (en) * | 2013-12-05 | 2016-03-23 | 吴忠仪表有限责任公司 | Cut-off valve |
| CN114060544A (en) * | 2021-12-01 | 2022-02-18 | 北京市公用事业科学研究所 | Structure of gas pressure regulating device with pressure regulating and cutting integrated functions |
| CN114060544B (en) * | 2021-12-01 | 2023-09-12 | 北京市公用事业科学研究所 | Structure of fuel gas pressure regulating device integrating pressure regulating and cutting-off |
| CN114370519A (en) * | 2022-01-20 | 2022-04-19 | 北京市公用事业科学研究所 | Pressure regulating structure with overhead cutting-off function |
| CN114370519B (en) * | 2022-01-20 | 2023-09-12 | 北京市公用事业科学研究所 | Pressure regulating structure with overhead cutting-off function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070620 Termination date: 20120614 |