CN204114188U - Combination throttling fit formula modulating valve - Google Patents
Combination throttling fit formula modulating valve Download PDFInfo
- Publication number
- CN204114188U CN204114188U CN201420077135.3U CN201420077135U CN204114188U CN 204114188 U CN204114188 U CN 204114188U CN 201420077135 U CN201420077135 U CN 201420077135U CN 204114188 U CN204114188 U CN 204114188U
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- China
- Prior art keywords
- valve
- orifice sleeve
- pressure
- fit formula
- operating mode
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- 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 - Lifetime
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- 230000005619 thermoelectricity Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000000007 visual effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000006837 decompression Effects 0.000 description 1
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Abstract
The utility model is a kind of combination throttling fit formula modulating valve, belongs to thermoelectricity, nuclear power valve field.Combination throttling fit formula modulating valve is arranged on thermoelectricity, nuclear power generating sets water-steam system pipeline, is the visual plant regulating rate-of flow, pressure, temperature.Combination throttling fit formula modulating valve is made up of valve body, valve seat, lower orifice sleeve, flap, upper orifice sleeve, valve rod, valve gap etc., valve gap compresses upper orifice sleeve, upper orifice sleeve compresses lower orifice sleeve again, and by seat compression on valve body, valve rod drives flap to move in upper and lower orifice sleeve, regulates the flow area of orifice sleeve.The beneficial effects of the utility model are: be effectively applicable to pressure reduction and change large operating mode, be both applicable to low-flow high-pressure-difference operating mode, and be applicable to again large discharge small pressure difference operating mode.
Description
Technical field
The utility model relates to a kind of combination throttling fit formula modulating valve, belongs to thermoelectricity, nuclear power valve field.
Background technique
Combination throttling fit formula modulating valve is arranged on thermoelectricity, nuclear power generating sets water-steam system pipeline, is the visual plant regulating rate-of flow, pressure.
At present, low-flow high-pressure-difference operating mode adopts the regulative mode of multistage throttle decompression, the regulative mode of large discharge small pressure difference operating mode many employings single-stage expenditure and pressure.Can only bypass be increased for the pipeline that not only there is low-flow high-pressure-difference operating mode but also there is large discharge small pressure difference operating mode, regulate along separate routes, increase cost.
Summary of the invention
For above-mentioned technical problem, the purpose of this utility model is to provide a kind of combination throttling fit formula modulating valve, is applicable to the operating mode that pressure reduction changes greatly.
For achieving the above object, the utility model provides a kind of combination throttling fit formula modulating valve, and it comprises valve body (1), valve seat (2), lower orifice sleeve (3), flap (4), upper orifice sleeve (5), valve rod (6), valve gap (7).Valve body (1) is flexibly connected with valve seat (2), and upper orifice sleeve (5) compresses lower orifice sleeve (3), then compresses valve seat (2).
Described combination throttling fit formula modulating valve adopts combined type throttling fit, comprise orifice sleeve (5) and lower orifice sleeve (3), valve rod (6) drives flap (4) mobile in upper orifice sleeve (5) and lower orifice sleeve (3), regulates the flow area of orifice sleeve.
The throttling fit that lower orifice sleeve (3) is reduced pressure for multistage throttle, is applicable to low-flow high-pressure-difference operating mode; The throttling fit that upper orifice sleeve (5) is single-stage expenditure and pressure, be process multiple throttling pore at cylindrical single-stage orifice sleeve circumferencial direction, structure as shown in Figure 2.Upper orifice sleeve (5) passes through larger rate-of flow when adopting single-stage expenditure and pressure can ensure small pressure difference.
The beneficial effects of the utility model are: adopt combined type throttling fit, throttling fit is made up of upper orifice sleeve (5) and lower orifice sleeve (3), the throttling fit that lower orifice sleeve (3) is reduced pressure for multistage throttle, is applicable to low-flow high-pressure-difference operating mode; Upper orifice sleeve (5) adopts single-stage throttle sleeve regulation structure, is applicable to large discharge small pressure difference operating mode, effectively achieves multi-purpose valve.
Accompanying drawing explanation
Fig. 1 is the structural representation of combination throttling fit formula modulating valve;
In figure, 1. valve body, 2. valve seat, 3. play orifice sleeve, 4. flap, 5. goes up orifice sleeve, 6. valve rod, 7. valve gap
Fig. 2 is upper orifice sleeve structural representation;
In figure, 8. throttling pore
Embodiment
In the embodiment shown in fig. 1, the throttling fit combining throttling fit formula modulating valve is made up of upper orifice sleeve (5) and lower orifice sleeve (3).Valve body (1) is with bolts with valve gap (7), orifice sleeve (5) in valve gap (7) compression, upper orifice sleeve (5) compresses lower orifice sleeve (3), then is pressed on valve body (1) by valve seat (2).Valve rod (6) is threaded with flap (4), valve rod (6) drives flap (4) to move up and down in upper orifice sleeve (5) and lower orifice sleeve (3), the flow area of orifice sleeve (5) and lower orifice sleeve (3) in control, regulates flow and the pressure of medium.
Claims (2)
1. combine throttling fit formula modulating valve, it is characterized in that: it comprises valve body (1), valve seat (2), lower orifice sleeve (3), flap (4), upper orifice sleeve (5), valve rod (6), valve gap (7), valve body (1) is flexibly connected with valve seat (2), upper orifice sleeve (5) compresses lower orifice sleeve (3), then compresses valve seat (2).
2. combination throttling fit formula modulating valve according to claim 1, is characterized in that: the throttling fit that lower orifice sleeve (3) reduces pressure for multistage throttle, the throttling fit that upper orifice sleeve (5) is single-stage expenditure and pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077135.3U CN204114188U (en) | 2014-02-19 | 2014-02-19 | Combination throttling fit formula modulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077135.3U CN204114188U (en) | 2014-02-19 | 2014-02-19 | Combination throttling fit formula modulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204114188U true CN204114188U (en) | 2015-01-21 |
Family
ID=52331500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420077135.3U Expired - Lifetime CN204114188U (en) | 2014-02-19 | 2014-02-19 | Combination throttling fit formula modulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204114188U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807455A (en) * | 2014-02-19 | 2014-05-21 | 哈电集团哈尔滨电站阀门有限公司 | Combined throttling pair-type regulating valve |
| CN110030412A (en) * | 2019-03-08 | 2019-07-19 | 哈电集团哈尔滨电站阀门有限公司 | A kind of heavy caliber multistage pilot operated safety valve |
-
2014
- 2014-02-19 CN CN201420077135.3U patent/CN204114188U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807455A (en) * | 2014-02-19 | 2014-05-21 | 哈电集团哈尔滨电站阀门有限公司 | Combined throttling pair-type regulating valve |
| CN110030412A (en) * | 2019-03-08 | 2019-07-19 | 哈电集团哈尔滨电站阀门有限公司 | A kind of heavy caliber multistage pilot operated safety valve |
| CN110030412B (en) * | 2019-03-08 | 2024-06-04 | 哈电集团哈尔滨电站阀门有限公司 | Large-caliber multi-stage pilot operated safety valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150121 |