CN207621433U - A kind of extracted steam from turbine check quick-closing valve helps pass structure - Google Patents
A kind of extracted steam from turbine check quick-closing valve helps pass structure Download PDFInfo
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- CN207621433U CN207621433U CN201721389578.6U CN201721389578U CN207621433U CN 207621433 U CN207621433 U CN 207621433U CN 201721389578 U CN201721389578 U CN 201721389578U CN 207621433 U CN207621433 U CN 207621433U
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- push rod
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- driving device
- valve body
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Abstract
A kind of extracted steam from turbine check quick-closing valve helps pass structure, including valve body, valve plate, push rod and driving device, valve plate is located at valve inner, push rod is fixedly connected on valve plate, push rod extends valve body and is fixedly connected with driving device, angle between valve plate and valve body bottom surface is 26 °, and the angle between push rod and valve body bottom surface is 60 °, and the axis of driving device and the axis of push rod are in a straight line.The utility model has the beneficial effects that：1, by the way of tilting installation, valve plate forms reaction force to push rod, and the action direction of reaction force is along push rod direction, it is ensured that the stability of push rod improves the service life of push rod；2, by the way of tilting installation, in helping pass stroke, the spring of driving device helps Guan Li to be approximately perpendicular to valve plate by push rod to what valve plate applied, fully uses spring force, realizes the small requirement of torque；3, when medium is flow backwards, valve plate relies on the gravity and close-assisted device of itself, realizes quick closedown, prevents medium from flowing backwards.
Description
Technical field
The utility model is related to a kind of quick-closing valves, and pass structure is helped more particularly to a kind of quick-closing valve.
Background technology
Extracted steam from turbine check quick-closing valve designs to play maximum protection to extracted steam from turbine.They pass through fast
The fast and strict water or steaming for closing guarantee heater or high-energy in heat distribution pipeline when generator tripping, main inlet throttle-stop valve are closed
Vapour can be promptly isolated with steam turbine, to play the role of protecting steam turbine.Compared with traditional valve, extracted steam from turbine
For check quick-closing valve as a protective device, important design principle is that must have very high reliability.
Invention content
In order to overcome existing steam extraction check quick-closing valve disadvantages mentioned above, a kind of operational torque of the utility model offer is small, uses
Long lifespan, shut-in time short check quick-closing valve help pass structure.
Technical solution adopted by the utility model to solve its technical problems is a kind of extracted steam from turbine check quick-closing valves
Pass structure, including valve body, valve plate, push rod and driving device, valve plate is helped to be located at valve inner, push rod is fixedly connected on valve plate,
Push rod extends valve body and is fixedly connected with driving device, and valve plate and the angle between valve body bottom surface are α, 0 °<α<30 °, push rod
Angle between valve body bottom surface is β, 45 °<β<90 °, the axis of driving device and the axis of push rod are in a straight line.
Preferred embodiment is that α is 26 °, and β is 60 °.
The utility model has the beneficial effects that：
1, by the way of tilting and installing, valve plate forms reaction force to push rod, the action direction of reaction force be along
Push rod direction, it is ensured that the stability of push rod improves the service life of push rod；
2, by the way of tilting and installing, in helping and closing stroke, what the spring of driving device applied valve plate by push rod
It helps Guan Li to be approximately perpendicular to valve plate, fully uses spring force, realize the small requirement of torque；
3, when medium is flow backwards, valve plate is by the gravity of itself and the spring force by push rod power transmission and reversed steam flow
Under pressure effect, realizes quick closedown, prevent medium from flowing backwards.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the present embodiment structure chart.
In Fig. 1：1. valve body；2. valve plate；3. push rod；4. driving device；5. valve body bottom surface.
Specific implementation mode
As shown in Figure 1, a kind of extracted steam from turbine check quick-closing valve help pass structure, including valve body 1, valve plate 2, push rod 3 with
And driving device 4, valve plate 2 are located inside valve body 1, and push rod 3 is fixedly connected on valve plate 2, push rod 3 extends valve body 1 and is filled with driving
It sets 4 to be fixedly connected, valve plate 2 and the angle between valve body bottom surface 5 are α, 0 °<α<30 °, the folder between push rod 3 and valve body bottom surface 5
Angle is β, 45 °<β<90 °, the axis of driving device 4 and the axis of push rod 3 are in a straight line.Preferred embodiment is that α is 26 °, and β is
60°。
Claims (2)
1. a kind of extracted steam from turbine check quick-closing valve helps pass structure, including valve body, valve plate, push rod and driving device, valve plate
Push rod is fixedly connected on valve inner, valve plate, the push rod extends valve body and is fixedly connected with the driving device, special
Sign is：The valve plate and the angle between valve body bottom surface are α, 0 °<α<30 °, the folder between the push rod and valve body bottom surface
Angle is β, 45 °<β<90 °, the axis of the axis of the driving device and the push rod is in a straight line.
2. extracted steam from turbine check quick-closing valve as described in claim 1 helps pass structure, it is characterised in that：α is 26 °, and β is
60°。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721389578.6U CN207621433U (en) | 2017-10-26 | 2017-10-26 | A kind of extracted steam from turbine check quick-closing valve helps pass structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721389578.6U CN207621433U (en) | 2017-10-26 | 2017-10-26 | A kind of extracted steam from turbine check quick-closing valve helps pass structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207621433U true CN207621433U (en) | 2018-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721389578.6U Active CN207621433U (en) | 2017-10-26 | 2017-10-26 | A kind of extracted steam from turbine check quick-closing valve helps pass structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN207621433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925442A (en) * | 2019-12-11 | 2020-03-27 | 江苏迪森阀门科技有限公司 | Self-sealing valve |
-
2017
- 2017-10-26 CN CN201721389578.6U patent/CN207621433U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925442A (en) * | 2019-12-11 | 2020-03-27 | 江苏迪森阀门科技有限公司 | Self-sealing valve |
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