CN204062109U - Twin-tub Subzero valve pneumatic actuator - Google Patents
Twin-tub Subzero valve pneumatic actuator Download PDFInfo
- Publication number
- CN204062109U CN204062109U CN201420421459.4U CN201420421459U CN204062109U CN 204062109 U CN204062109 U CN 204062109U CN 201420421459 U CN201420421459 U CN 201420421459U CN 204062109 U CN204062109 U CN 204062109U
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- cylinder body
- low temperature
- piston
- lower cylinder
- valve
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Abstract
The utility model is twin-tub Subzero valve pneumatic actuator, solves the force limited of the built-in spring of pneumatic actuator, produces the problem of leaking when easily causing low temperature pneumatic stopping valve and low temperature Emergeny Cutoff Valves to close.By lower cylinder body (1), upper cylinder body (4), cylinder cap (5) forms, upper cylinder body (4) and lower cylinder body (1) form closure, piston (3) is had in closure, the epicoele of piston is provided with spring (8), and be connected with manual shaft (6), the lower end of piston (3) is connected with the upper end of transmission shaft (9), the lower end of transmission shaft (9) is connected with the valve rod of low temperature pneumatic stopping valve or low temperature Emergeny Cutoff Valves, upper cylinder body air input joint (7) is arranged at the top of upper cylinder body (4), lower cylinder body is provided with lower cylinder body air input joint (10), fusible plug connection mouth (2) is provided with at lower cylinder body import (10) joint symmetry plane.
Description
technical field:
The utility model is relevant with low temperature pneumatic stopping valve, low temperature Emergeny Cutoff Valves and pneumatic actuator.
background technique:
Existing low temperature pneumatic stopping valve and low temperature Emergeny Cutoff Valves now, adopt be gas force open type single cylinder structure pneumatic actuator to low temperature pneumatic stopping valve and low temperature Emergeny Cutoff Valves carry out operation control, the closedown of low temperature pneumatic stopping valve and low temperature Emergeny Cutoff Valves only relies on the built-in acting force of the spring of pneumatic actuator to realize, be subject to low temperature pneumatic stopping valve and the restriction of low temperature Emergeny Cutoff Valves 0.3 ~ 0.6MPa control instrument atmospheric pressure, ensure that instrument supply gas normally can open low temperature pneumatic stopping valve and low temperature Emergeny Cutoff Valves, because the active force of the built-in spring of pneumatic actuator is very limited, so just be easy to produce when causing low temperature pneumatic stopping valve and low temperature Emergeny Cutoff Valves to close leak.
model utility content:
It is simple that the purpose of this utility model is to provide a kind of structure, produce assembling easily, can guaranteeing that low temperature pneumatic stopping valve and low temperature Emergeny Cutoff Valves can effectively be closed when closing, when stopping low temperature pneumatic stopping valve and the closedown of low temperature Emergeny Cutoff Valves, producing the twin-tub Subzero valve pneumatic actuator of the leakage of cryogenic media
The utility model realizes by the following method like this:
Twin-tub Subzero valve pneumatic actuator, lower cylinder body 1, upper cylinder body 4, cylinder cap 5 form, upper cylinder body 4 and lower cylinder body 1 form closure, piston 3 is had in closure, the epicoele of piston is provided with spring 8, and be connected with manual shaft 6, the lower end of piston 3 is connected with the upper end of transmission shaft 9, the lower end of transmission shaft 9 is connected with the valve rod of low temperature pneumatic stopping valve or low temperature Emergeny Cutoff Valves, upper cylinder body air input joint 7 is arranged at the top of upper cylinder body 4, lower cylinder body is provided with lower cylinder body air input joint 10, is provided with fusible plug connection mouth at lower cylinder body import 10 joint symmetry plane.
Fused plug connection mouth 2 is connected with fusible plug.
The utility model has the following advantages:
(1) effective closedown of the meeting of low temperature pneumatic stopping valve or low temperature Emergeny Cutoff Valves is realized, the generation of leakage situation when having stopped to close.
(2) structure is simple, produces assembling easily.
accompanying drawing illustrates:
Fig. 1 is structural drawing of the present utility model.
embodiment:
Twin-tub Subzero valve pneumatic actuator, lower cylinder body 1, upper cylinder body 4, cylinder cap 5 form, upper cylinder body 4 and lower cylinder body 1 form closure, piston 3 is had in closure, the epicoele of piston is provided with spring 8, and be connected with manual shaft 6, the lower end of piston 3 is connected with the upper end of transmission shaft 9, the lower end of transmission shaft 9 is connected with the valve rod of low temperature pneumatic stopping valve or low temperature Emergeny Cutoff Valves, upper cylinder body air input joint 7 is arranged at the top of upper cylinder body 4, lower cylinder body is provided with lower cylinder body air input joint 10, is provided with fusible plug connection mouth at lower cylinder body import 10 joint symmetry plane.
Fused plug connection mouth 2 is connected with fusible plug.
When the meeting of low temperature pneumatic stopping valve or low temperature Emergeny Cutoff Valves need to open, inflate in pneumatic actuator lower cylinder body 1 from lower cylinder body air input joint 10 and apply air pressure, now, the gas of upper cylinder body 4 inner chamber body is emptying by upper cylinder body air input joint 7, piston 3 is under the effect of lower cylinder body 1 inner chamber air pressure, move upward after overcoming acting force of the spring, piston 3 drives transmission shaft 9 also to move upward, transmission shaft 9 is directly connected with the valve rod of the meeting of low temperature pneumatic stopping valve or low temperature Emergeny Cutoff Valves, like this, piston 3 upwards drives the meeting of low temperature pneumatic stopping valve or low temperature Emergeny Cutoff Valves valve rod to move upward, realize the breakdown action of the meeting of low temperature pneumatic stopping valve or low temperature Emergeny Cutoff Valves,
When the meeting of low temperature pneumatic stopping valve or low temperature Emergeny Cutoff Valves need to close, inflate in pneumatic actuator upper cylinder body 4 from upper cylinder body air input joint 7 and apply air pressure, now, the gas of lower cylinder body 1 inner chamber body is emptying by lower cylinder body air input joint 10, piston 3 moves downward under the acting in conjunction of upper cylinder body 4 inner chamber air pressure and spring 8, piston 3 drives transmission shaft 9 also to move downward, transmission shaft 9 is directly connected with the valve rod of the meeting of low temperature pneumatic stopping valve or low temperature Emergeny Cutoff Valves, like this, piston 3 drives low temperature pneumatic stopping valve meeting or low temperature Emergeny Cutoff Valves valve rod to move downward downwards, realize the closing motion of the meeting of low temperature pneumatic stopping valve or low temperature Emergeny Cutoff Valves.Because the meeting of low temperature pneumatic stopping valve or low temperature Emergeny Cutoff Valves closing force are except the active force of spring 8, also add the bleed pressure effect in upper cylinder body 3, and the active force of bleed pressure generation is the active force several times of spring, thus achieve the effective closedown when meeting of low temperature pneumatic stopping valve or the closedown of low temperature Emergeny Cutoff Valves, stop the generation of leakage situation when the meeting of low temperature pneumatic stopping valve or the closedown of low temperature Emergeny Cutoff Valves.
Claims (2)
1. twin-tub Subzero valve pneumatic actuator, it is characterized in that by lower cylinder body (1), upper cylinder body (4), cylinder cap (5) forms, upper cylinder body (4) and lower cylinder body (1) form closure, piston (3) is had in closure, the epicoele of piston is provided with spring (8), piston is connected with manual shaft (6), the lower end of piston (3) is connected with the upper end of transmission shaft (9), the lower end of transmission shaft (9) is connected with the valve rod of low temperature pneumatic stopping valve or low temperature Emergeny Cutoff Valves, upper cylinder body air input joint (7) is arranged at the top of upper cylinder body (4), lower cylinder body is provided with lower cylinder body air input joint (10), fusible plug connection mouth (2) is provided with at lower cylinder body import (10) joint symmetry plane.
2. twin-tub Subzero valve pneumatic actuator according to claim 1, is characterized in that lower cylinder body is provided with fusible plug connection mouth (2) and is connected with fusible plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420421459.4U CN204062109U (en) | 2014-07-29 | 2014-07-29 | Twin-tub Subzero valve pneumatic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420421459.4U CN204062109U (en) | 2014-07-29 | 2014-07-29 | Twin-tub Subzero valve pneumatic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204062109U true CN204062109U (en) | 2014-12-31 |
Family
ID=52203623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420421459.4U Active CN204062109U (en) | 2014-07-29 | 2014-07-29 | Twin-tub Subzero valve pneumatic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204062109U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195412A (en) * | 2015-05-04 | 2016-12-07 | 陕西汽车集团有限责任公司 | A kind of valve member |
| CN107327616A (en) * | 2017-07-12 | 2017-11-07 | 德科隆（无锡）流体控制有限公司 | A kind of superposing type high thrust pneumatic actuator |
| CN108426085A (en) * | 2018-04-28 | 2018-08-21 | 张家港富瑞阀门有限公司 | Stop valve cylinder and the pneumatic operated valve with this cylinder and LNG ultralow temperature pipelines |
| CN109357064A (en) * | 2018-12-12 | 2019-02-19 | 江苏工流体控制设备有限公司 | It is a kind of not by the pneumatic actuator of load effect |
-
2014
- 2014-07-29 CN CN201420421459.4U patent/CN204062109U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195412A (en) * | 2015-05-04 | 2016-12-07 | 陕西汽车集团有限责任公司 | A kind of valve member |
| CN106195412B (en) * | 2015-05-04 | 2018-06-19 | 陕西汽车集团有限责任公司 | A kind of valve member |
| CN107327616A (en) * | 2017-07-12 | 2017-11-07 | 德科隆（无锡）流体控制有限公司 | A kind of superposing type high thrust pneumatic actuator |
| CN108426085A (en) * | 2018-04-28 | 2018-08-21 | 张家港富瑞阀门有限公司 | Stop valve cylinder and the pneumatic operated valve with this cylinder and LNG ultralow temperature pipelines |
| CN109357064A (en) * | 2018-12-12 | 2019-02-19 | 江苏工流体控制设备有限公司 | It is a kind of not by the pneumatic actuator of load effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |