CN2564803Y - Differential pressure valve - Google Patents
Differential pressure valve Download PDFInfo
- Publication number
- CN2564803Y CN2564803Y CN 02265601 CN02265601U CN2564803Y CN 2564803 Y CN2564803 Y CN 2564803Y CN 02265601 CN02265601 CN 02265601 CN 02265601 U CN02265601 U CN 02265601U CN 2564803 Y CN2564803 Y CN 2564803Y
- Authority
- CN
- China
- Prior art keywords
- piston
- differential
- air inlet
- cavity
- pressurized gas
- 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 - Fee Related
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Abstract
The utility model discloses a differential pressure valve which comprises a valve body (1), a piston (3) and a reset spring (4). Both ends of the valve body 91) are respectively provided with an air control cavity (9) and a high-pressure air inlet cavity (8). The end section area of a part of the piston (3), which contacts the air control cavity (9) is bigger than the end section area of a part of the piston (3), which contacts the high-pressure air inlet cavity (8). The diameter of the end face of the part of the piston (3), which contacts the air control cavity (9) is between 20 mm and 100 mm. The diameter of the end face of the part of the piston (3), which contacts the high-pressure air inlet cavity (9) is between 6 mm and 50 mm. The differential pressure valve of the utility model can open an air outlet passage thereof under the actuation of lower-pressure air and has the advantages of simple structure and flexible and reliable action.
Description
Technical field
The utility model belongs to a kind of valve, especially a kind of differential bottle valve that is used for high-pressure gas cylinder.
Technical background
The existing bottle valve that is used for high-pressure gas cylinder, valve body, Sealing, piston, startup cylinder and machinery top lock piston mechanism have been generally comprised, using mechanical mechanism to withstand piston is under normal conditions sealed, because the pressure effect of pressurized gas is stronger, the needed mechanical mechanism of piston closes air outlet channel will have enough intensity; When needs are discharged pressurized gas, have to be provided with in addition the startup cylinder in the bottle valve outside and back down mechanical mechanism, open air outlet channel, pressurized gas are outwards exported; So not only can make the control wiring complexity, manufacturability is poor, and the cost height.
Summary of the invention
The utility model technical issues that need to address are a kind of differential bottle valves, and it can open its air outlet channel under the lower gas-powered of pressure, and are simple in structure and be active in one's movements reliable.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of differential bottle valve, it includes valve body, piston and Returnning spring, two ends of valve body is respectively equipped with control gaseous cavity and pressurized gas air inlet cavity, the face area of described piston and control gaseous cavity contact segment greater than with the face area of pressurized gas air inlet cavity contact segment.
The end face diameter of described piston and control gaseous cavity contact segment is 20mm～100mm; The end face diameter of piston and pressurized gas air inlet cavity contact segment is 6mm～50mm; One side of described differential bottle valve is provided with urgent manual operating device; One side of described differential bottle valve also is provided with pressure meter; Between described pressurized gas air inlet cavity inner carrier and valve body, be provided with Sealing.
Owing to taked above-mentioned scheme, the advantage that the utility model is compared with prior art had is:
1, because piston and control gaseous cavity contact segment area, and pressurized gas air inlet cavity contact segment area exist area difference, thereby it is poor that piston is produced active force, make the utility model under less gas pressure effect, to open air outlet channel, outwards export pressurized gas;
2, simple in structure and be active in one's movements.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the structural representation of the differential bottle valve of the utility model;
Fig. 2 is the left view of Fig. 1.
Embodiment
As shown in Figure 1, the differential bottle valve of the utility model, it includes valve body 1, piston 3 and Returnning spring 4, the two ends of valve body 1 are respectively equipped with control gaseous cavity 9 and pressurized gas air inlet cavity 8, described piston 3 is 44mm with the end face diameter of control gaseous cavity 9 contact segments, the end face diameter of itself and pressurized gas air inlet cavity 8 contact segments is 20mm, therefore piston is with control gaseous cavity contact segment area, exist area difference with pressurized gas air inlet cavity contact segment area, thereby generation is poor to the active force of piston.
This differential bottle valve is located at the place, air outlet of high-pressure gas cylinder.
One side of this differential bottle valve is provided with pressure meter 5, is used to observe the pressure in the high-pressure gas cylinder, and reports to the police can surpass setting value to the gas pressure in the high-pressure gas cylinder time.
The opposite side of this differential bottle valve is provided with urgent manual operating device 6, be used under urgent situation, when breaking down, can directly pull this urgent manual operating device 6 with manpower as control system, when the air outlet of urgent manual operating device 6 was communicated with control gaseous cavity 9, this differential bottle valve was opened.
One side of this differential bottle valve also is provided with safety installations, is used to prevent because of the excessive accident that causes of gas pressure in the high-pressure gas cylinder.
Between described pressurized gas air inlet cavity 8 inner carriers 3 and valve body 1, be provided with Sealing 2, be used to prevent high pressure gas leakage.
The working principle of the differential bottle valve of the utility model with using process is: pressurized gas air inlet cavity 8 that will this differential bottle valve is connected high-pressure gas cylinder, and control gaseous cavity 9 connects the control gaseous pipelines, and air outlet channel 10 connects gas exhaust pipings; Usually during closed state, under high-pressure gas pressure and Returnning spring 4 effects, this valve cuts out in the valve body one end pressurized gas air inlet cavity 8, and gas can not be discharged; When control gaseous enters valve inner control gas cavity, because active area is more much bigger to the active area of piston than pressurized gas, so can produce very big active force, overcome pressurized gas and Returnning spring to piston action power, the promotion piston moves, make valve opening, from the gas of air outlet channel 10 in gas exhaust piping is discharged high-pressure gas cylinder; When not needing to discharge gas, stop to import control gaseous, under the effect to piston, piston reset makes valve be in closed condition again at pressurized gas and Returnning spring.
As a kind of conversion of the differential bottle valve of the utility model, described piston 3 is 20mm～100mm with the end face diameter of control gaseous cavity 9 contact segments; Piston 3 is 6mm～50mm with end face diameter with pressurized gas air inlet cavity 8 contact segments.
Claims (5)
1, a kind of differential bottle valve, it includes valve body (1), piston (3) and Returnning spring (4), the two ends of valve body (1) are respectively equipped with control gaseous cavity (9) and pressurized gas air inlet cavity (8), it is characterized in that: the face area of described piston (3) and control gaseous cavity (9) contact segment greater than with the face area of pressurized gas air inlet cavity (8) contact segment.
2, differential bottle valve according to claim 1 is characterized in that: described piston (3) is 20mm～100mm with the end face diameter of control gaseous cavity (9) contact segment; Piston (3) is 6mm～50mm with the end face diameter of pressurized gas air inlet cavity (8) contact segment.
3, differential bottle valve according to claim 2 is characterized in that: a side of described differential bottle valve is provided with urgent manual operating device (6).
4, differential bottle valve according to claim 3 is characterized in that: a side of described differential bottle valve also is provided with pressure meter (5).
5, differential bottle valve according to claim 5 is characterized in that: be provided with Sealing (2) between described pressurized gas air inlet cavity (8) inner carrier (3) and valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02265601 CN2564803Y (en) | 2002-07-18 | 2002-07-18 | Differential pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02265601 CN2564803Y (en) | 2002-07-18 | 2002-07-18 | Differential pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2564803Y true CN2564803Y (en) | 2003-08-06 |
Family
ID=33731594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02265601 Expired - Fee Related CN2564803Y (en) | 2002-07-18 | 2002-07-18 | Differential pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2564803Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109049A (en) * | 2011-03-14 | 2011-06-29 | 宁波三安制阀有限公司 | Bottle valve |
| CN105973066A (en) * | 2016-06-16 | 2016-09-28 | 凌佳泓 | Method and device for releasing gas of gas gun through two times of valve opening |
| CN106693220A (en) * | 2016-12-19 | 2017-05-24 | 国网山东省电力公司荣成市供电公司 | Electric power detecting construction safety belt hanger |
-
2002
- 2002-07-18 CN CN 02265601 patent/CN2564803Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109049A (en) * | 2011-03-14 | 2011-06-29 | 宁波三安制阀有限公司 | Bottle valve |
| CN105973066A (en) * | 2016-06-16 | 2016-09-28 | 凌佳泓 | Method and device for releasing gas of gas gun through two times of valve opening |
| CN106693220A (en) * | 2016-12-19 | 2017-05-24 | 国网山东省电力公司荣成市供电公司 | Electric power detecting construction safety belt hanger |
| CN106693220B (en) * | 2016-12-19 | 2019-09-17 | 国网山东省电力公司荣成市供电公司 | Electric power detects construction safety band hanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |