CN204358146U - With the direct-exhausting type solenoid blowout valve of flow guide device - Google Patents
With the direct-exhausting type solenoid blowout valve of flow guide device Download PDFInfo
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- CN204358146U CN204358146U CN201420837305.3U CN201420837305U CN204358146U CN 204358146 U CN204358146 U CN 204358146U CN 201420837305 U CN201420837305 U CN 201420837305U CN 204358146 U CN204358146 U CN 204358146U
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- valve
- guide device
- flow guide
- solenoid blowout
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Abstract
The utility model relates to a kind of direct-exhausting type solenoid blowout valve with flow guide device, belongs to the field such as thermoelectricity, nuclear power valve.Adopt valve gap and valve seat to leave the structure of flow guide device, between valve body and valve seat, be placed with C RunddichtringO.The downward action of solenoid blowout valve flap assembly, after valve opening discharges excess steam, when pressure medium is less than Set pressure, the upwards action of flap assembly, contact with valve seat and seal, valve closing, the inwall of condensed water along valve gap is become to dirty after solenoid blowout valve valve gap outlet end steam-condensation, the overwhelming majority can flow to valve outside by guiding gutter with the condensed water of impurity, C RunddichtringO is placed with between valve body and valve seat, the steam flowing into valve internal under not only ensure that solenoid blowout valve closed condition is not revealed, stop the condensed water of flow guide device partial reflux on valve gap to flow back to valve inner simultaneously.Solving impurity is mingled with in sealing surface, causes sealing face damage and poorly sealed close problem.
Description
Technical field
The utility model relates to a kind of direct-exhausting type solenoid blowout valve with flow guide device, belongs to the field such as thermoelectricity, nuclear power valve.
Background technique
At present, solenoid blowout valve is arranged on thermoelectricity, nuclear power generating sets boiler pipe, prevents vapor pressure in boiler from exceeding specified value, opens before safety valve action, gets rid of excess steam, runs to protect boiler under authorized pressure; Reduce safety valve action number of times simultaneously, the working life of safety valve can be extended.Traditional solenoid blowout valve, exhaust outlet, only adopt single valve gap and valve body directly by the structure be threaded, exhaust steam after solenoid blowout valve action, become the inwall of condensed water along valve gap after steam-condensation to dirty, finally can be deposited in the edge of the sealing surface of valve seat and flap assembly with the condensed water of impurity.Due to the vibrations that boiler tubing and valve event produce, when next valve opening, these impurity are easy to will be mingled with in the middle of sealing surface, cause the damage of sealing surface, and often this runs, and can affect the working life of valve.
Generally common solenoid blowout valve be all adopt between valve seat and valve body grooved metal gasket, be wound around packing ring, flat gasket etc. seal, these sealing means can not well for the sealing between high pressure valve, its main cause is that the pre-sealed power of these pads and steering force are all too large, is difficult to find suitable compression mode in valve body.If Flange joint in adopting, between middle flange valve body and valve gap, use spirotallic gasket or flat gasket to seal, such Placement is under low pressure feasible, but time under high pressure, compress required bolt force herein too large, be difficult to reach good sealing effect.
Summary of the invention
In view of the defect that prior art exists, the purpose of this utility model is to provide a kind of direct-exhausting type solenoid blowout valve with flow guide device, adopts trapezoidal thread to be connected and use C RunddichtringO to replace common winding packing ring to seal valve body and valve seat between valve body with valve seat.
For achieving the above object, the utility model solves the technological scheme that its technical problem adopts: a kind of direct-exhausting type solenoid blowout valve with flow guide device, comprise the parts compositions such as auxiliary valve, valve body, flap assembly, C RunddichtringO, valve seat, valve gap and auxiliary valve, it is characterized in that adopting valve gap and valve seat to leave flow guide device, adopt trapezoidal thread to be connected between valve body with valve seat and use C RunddichtringO to seal valve body and valve seat.When medium steam pressure meets or exceeds Set pressure, the downward action of solenoid blowout valve flap assembly, valve opening, discharges excess steam; When pressure medium is less than Set pressure, the upwards action of flap assembly, contacts with valve seat and seals, valve closing, become the inwall of condensed water along valve gap after solenoid blowout valve valve gap outlet end steam-condensation to dirty, the overwhelming majority can flow to valve outside by flow guide device with the condensed water of impurity; Between valve body and valve seat, be placed with C RunddichtringO seal, the steam flowing into valve internal under not only ensure that solenoid blowout valve closed condition is not revealed, and stops the condensed water of flow guide device partial reflux on valve gap to flow back to valve inner simultaneously.
The beneficial effects of the utility model are: this design prevents valve from remaining medium residence on sealing surface when switch effectively, weighs sealing surface wounded, ensure sealing effect, extend life of valve, and solve the interior leakage problem of valve.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of the direct-exhausting type solenoid blowout valve of band flow guide device
In figure, 1. auxiliary valve, 2. valve body, 3. flap assembly, 4.C RunddichtringO, 5. valve seat, 6. valve gap
Embodiment
In the embodiment shown in fig. 1, when medium steam pressure meets or exceeds Set pressure, with the downward action of direct-exhausting type solenoid blowout valve flap assembly 3 of flow guide device, valve opening, discharge excess steam, when pressure medium is less than Set pressure, flap assembly 3 upwards action, contact with valve seat and seal, valve closing, the inwall of condensed water along valve gap 6 is become to dirty after the steam-condensation of valve gap 6 outlet end of solenoid blowout valve, and flow to valve outside by flow guide device, C RunddichtringO 4 is placed with between valve body 2 and valve seat 5, the steam flowing into valve internal under not only ensure that solenoid blowout valve closed condition is not revealed, stop the condensed water of flow guide device partial reflux on valve gap 6 to flow back to valve body 2 inner simultaneously.
Claims (3)
1. the direct-exhausting type solenoid blowout valve with guiding gutter, include auxiliary valve (1), the parts compositions such as valve body (2), flap assembly (3), C RunddichtringO (4), valve seat (5), valve gap (6).
2. be provided with flow guide device between direct-exhausting type solenoid blowout valve valve gap according to claim 1 and valve seat.
3. direct-exhausting type solenoid blowout valve valve body according to claim 1 is connected with adopting trapezoidal thread between valve seat, and adopts C type circle to seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420837305.3U CN204358146U (en) | 2014-12-21 | 2014-12-21 | With the direct-exhausting type solenoid blowout valve of flow guide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420837305.3U CN204358146U (en) | 2014-12-21 | 2014-12-21 | With the direct-exhausting type solenoid blowout valve of flow guide device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204358146U true CN204358146U (en) | 2015-05-27 |
Family
ID=53259616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420837305.3U Active CN204358146U (en) | 2014-12-21 | 2014-12-21 | With the direct-exhausting type solenoid blowout valve of flow guide device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204358146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344066A (en) * | 2020-10-26 | 2021-02-09 | 哈电集团哈尔滨电站阀门有限公司 | Direct-discharge type pneumatic relief valve |
-
2014
- 2014-12-21 CN CN201420837305.3U patent/CN204358146U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344066A (en) * | 2020-10-26 | 2021-02-09 | 哈电集团哈尔滨电站阀门有限公司 | Direct-discharge type pneumatic relief valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |