CN204900878U - Multistage shoulder hole sleeve governing valve - Google Patents
Multistage shoulder hole sleeve governing valve Download PDFInfo
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- CN204900878U CN204900878U CN201520112344.1U CN201520112344U CN204900878U CN 204900878 U CN204900878 U CN 204900878U CN 201520112344 U CN201520112344 U CN 201520112344U CN 204900878 U CN204900878 U CN 204900878U
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Abstract
The utility model relates to a multistage shoulder hole sleeve governing valve belongs to thermoelectricity, nuclear power valve field. Multistage shoulder hole sleeve governing valve installs at thermoelectricity, nuclear power generating sets steam -water system pipeline, is the important equipment of adjusting medium flow, pressure, temperature. Multistage shoulder hole sleeve governing valve comprises valve body, disk seat, sleeve subassembly, valve rod, valve clack, valve gap etc. The valve gap compresses tightly the sleeve subassembly to compress tightly the disk seat on the valve body, the valve rod drives the valve clack and removes in the sleeve subassembly, adjusting valve's flow area. The utility model discloses a sleeve subassembly comprises multistage sleeve, and the inlayer sleeve is provided with the shoulder hole of circular little through -hole and circular big blind hole, and the medium runner has the many places right angle to turn round, turns round the deceleration through through -hole throttle, big blind hole dilatation and right angle and realizes reducing pressure step by step, avoids producing flash distillation and cavitation, improves governing valve life, noise reduction.
Description
Technical field
The utility model relates to a kind of multistage shoulder hole sleeve adjusting valve, belongs to thermoelectricity, nuclear power valve field.
Background technique
Multistage shoulder hole sleeve adjusting valve is arranged on thermoelectricity, nuclear power generating sets boiler circuit pipeline, is the visual plant regulating rate-of flow, pressure, temperature.
At present, for the multi-stage sleeve modulating valve of High Pressure Difference operating mode owing to not arranging effective expansion space, or runner arranges unreasonable, fails to reach the throttling of expection, decompression, noise reduction, reduces valve working life.
The utility model adopts multistage shoulder hole sleeve throttling fit to efficiently solve the problems referred to above.
Model utility content
For above-mentioned technical problem, the purpose of this utility model is to provide a kind of multistage shoulder hole sleeve adjusting valve, is applicable to the operating mode that pressure reduction is larger, effectively avoids flash distillation and cavitation phenomenon, extend its working life.
For achieving the above object, the utility model provides a kind of multistage shoulder hole sleeve adjusting valve, and it comprises valve body (1), valve seat (2), flap (3), sleeve assembly (4), valve rod (5), valve gap (6) etc.
The sleeve assembly that described multistage shoulder hole sleeve adjusting valve adopts coordinates nested composition by inner sleeve with outer sleeve, outer sleeve is provided with uniform manhole, the barrel of inner sleeve is provided with uniform circular small through hole, outer wall is processed circular big-diameter blind hole, small through hole is inscribed within circular big-diameter blind hole, circular big-diameter blind hole diameter is greater than the twice of small through hole, and the circular big-diameter blind hole degree of depth equals small through hole diameter.
The beneficial effects of the utility model are: sleeve assembly adopts the medium runner structure of many places right-angle turning, medium can be made with stable flow velocity, step pressure reducing, consume the energy of fluid, avoid producing flash distillation and cavitation phenomenon, effective raising modulating valve working life, reduce vibration and noise.
Accompanying drawing explanation
Fig. 1 is the structural representation of multistage shoulder hole sleeve adjusting valve;
Fig. 2 sleeve assembly sectional view;
Fig. 3 outer sleeve sectional view;
Fig. 4 inner sleeve a sectional view;
Fig. 5 inner sleeve b sectional view.
In figure, 1. valve body, 2. valve seat, 3. flap, 4. sleeve assembly, 5. valve rod, 6. valve gap, 7. outer sleeve, 8. inner sleeve a, 9. inner sleeve b, 10. pin
Embodiment
In the embodiment shown in fig. 1, valve gap 6 clamp sleeve assembly 4, then valve seat 2 is pressed on valve body 1, valve rod 5 drives flap 3 mobile in sleeve assembly 4, and the flow area of regulating valve, realizes the regulatory function of valve.
As shown in Figures 2 to 5, sleeve assembly 4 coordinates nested composition by inner sleeve 8, inner sleeve 9 with outer sleeve 10, adopts pin 10 to locate between sleeve.Outer sleeve 7 is provided with uniform manhole, the barrel of inner sleeve 8,9 is provided with uniform circular small through hole, outer wall is processed circular big-diameter blind hole, small through hole is inscribed within circular big-diameter blind hole, point of contact is at the lower disc of circular big-diameter blind hole, circular big-diameter blind hole diameter is greater than the twice of small through hole, and the circular big-diameter blind hole degree of depth equals small through hole diameter.Through hole carries out medium throttling, and big-diameter blind hole carries out medium dilatation.
Inner sleeve 8,9 is single or multiple lift nested structure, and the center line of adjacent sleeve hole is staggeredly arranged, and the small through hole of outer layer sleeve is inscribed within the circular big-diameter blind hole of inner layer sleeve, and point of contact is at the upper disc of circular big-diameter blind hole.Sleeve assembly 4 forms shoulder hole medium runner, has many places right-angle turning.
Medium is reduced pressure step by step by through hole throttling, big-diameter blind hole dilatation and right-angle turning, avoids producing flash distillation and cavitation phenomenon, consumes medium energy, effectively improves the working life of modulating valve, reduces vibration, reduces noise.
Claims (2)
1. multistage shoulder hole sleeve adjusting valve, it is characterized in that: it comprises valve body (1), valve seat (2), flap (3), sleeve assembly (4), valve rod (5), valve gap (6), wherein sleeve assembly (4) comprises outer sleeve (7), inner sleeve a (8), inner sleeve b (9), valve body is flexibly connected with valve seat, valve gap clamp sleeve assembly, compress valve seat again, sleeve assembly coordinates nested composition by inner sleeve with outer sleeve, outer sleeve is provided with uniform manhole, the barrel of inner sleeve is provided with uniform circular small through hole, outer wall is processed circular big-diameter blind hole, small through hole is inscribed within circular big-diameter blind hole, point of contact is disc under circular big-diameter blind hole, circular big-diameter blind hole diameter is greater than the twice of small through hole diameter, the circular big-diameter blind hole degree of depth equals small through hole diameter.
2. multistage shoulder hole sleeve adjusting valve according to claim 1, it is characterized in that: inner sleeve is single or multiple lift nested structure, the center line of adjacent sleeve hole is staggeredly arranged, and the small through hole of outer layer sleeve is inscribed within the circular big-diameter blind hole of inner layer sleeve, and point of contact is at the upper disc of circular big-diameter blind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520112344.1U CN204900878U (en) | 2015-02-14 | 2015-02-14 | Multistage shoulder hole sleeve governing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520112344.1U CN204900878U (en) | 2015-02-14 | 2015-02-14 | Multistage shoulder hole sleeve governing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204900878U true CN204900878U (en) | 2015-12-23 |
Family
ID=54923055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520112344.1U Active CN204900878U (en) | 2015-02-14 | 2015-02-14 | Multistage shoulder hole sleeve governing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204900878U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960490A (en) * | 2020-08-13 | 2020-11-20 | 蒋颖真 | Multi-effect evaporation device and method for seawater desalination or solution concentration treatment |
| CN114135714A (en) * | 2020-09-03 | 2022-03-04 | 浙江盾安人工环境股份有限公司 | Throttle valve |
-
2015
- 2015-02-14 CN CN201520112344.1U patent/CN204900878U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960490A (en) * | 2020-08-13 | 2020-11-20 | 蒋颖真 | Multi-effect evaporation device and method for seawater desalination or solution concentration treatment |
| CN114135714A (en) * | 2020-09-03 | 2022-03-04 | 浙江盾安人工环境股份有限公司 | Throttle valve |
| CN114135714B (en) * | 2020-09-03 | 2024-04-02 | 浙江盾安人工环境股份有限公司 | Throttle valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |