CN201943760U - Improved air exhaust valve set of turboset - Google Patents
Improved air exhaust valve set of turboset Download PDFInfo
- Publication number
- CN201943760U CN201943760U CN2011200581001U CN201120058100U CN201943760U CN 201943760 U CN201943760 U CN 201943760U CN 2011200581001 U CN2011200581001 U CN 2011200581001U CN 201120058100 U CN201120058100 U CN 201120058100U CN 201943760 U CN201943760 U CN 201943760U
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- China
- Prior art keywords
- valve
- steam
- turboset
- air exhaust
- exhaust valve
- Prior art date
- 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 - Fee Related
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Abstract
The utility model belongs to the improvement of an air exhaust valve set of a turboset, in particular to an improved air exhaust valve set of a turboset, comprising an electric butterfly valve connected with an air exhaust pipe of an extraction condensing machine set of the turboset and an electric gate valve for supplying air to a steam outer net, wherein a pneumatic fast cutting valve is arranged on a connection pipe between the electric butterfly valve and the electric gate valve. The improved air exhaust valve set of the turboset has advantages of stable performance and rapid movement, and can cut off steam of the outer net rapidly; after closing the valve, the steam is not leaked, so that the performance requirement of the air exhaust valve set of the turboset can be achieved, and the safety of the machine is ensured during the extraction condensing operation.
Description
Technical field
The utility model belongs to the improvement of steam turbine set evacuating valve group, particularly improved steam turbine set evacuating valve group.
Background technique
Taking out of steam turbine set coagulated unit when production needs, can adjust pump-line to steam outer net steam supply by one section of unit, can reliable fast shut-off steam for guarantee that unit occurs when unexpected in taking out with fixed attention running, guarantee that outer net steam does not return steam supply wheel unit, cause unit substantial equipment accident, the machine assembly air-exhausting pipeline valve group of original design is: shuttle-type mechanical check valve of electric gate valve series connection electric butterfly valve of connecting again.When unit meets accident taking out when moving with fixed attention, unit is jumped machine and is joined the electric butterfly valve that closes on the unit pump-line on the one hand, and outer besides net vapor pressure makes shuttle-type mechanical check valve spool return guarantee to cut off outer net steam, guarantees that outer net steam does not return steam supply wheel unit.
Existing unit builds up finds in the debugging that it is 28 seconds that electric butterfly valve needs the time from the standard-sized sheet position to the complete shut-down position, and the time is longer; Electric gate valve needs 78 seconds time from the standard-sized sheet position to the complete shut-down position, time is longer, and electric gate valve needs after closing operator manually to add Guan Caineng to close tight and do not leak vapour, under electric gate valve is not related to situation, only electric butterfly valve and the shuttle-type mechanical check valve steam of closing outer net still has the phenomenon of returning for unit, and operator manually add still can not cut off outer net steam after closing electric butterfly valve fully.Coagulate operation when meeting accident so the machine assembly air-exhausting pipeline valve group of original design is taken out at unit, can not accomplish (less than 5 seconds) and the reliable outer net steam that cuts off fast, do not return with the steam that guarantees outer net and supply unit.
Summary of the invention
The purpose of this utility model is to provide a kind of improved steam turbine set evacuating valve group; its reliable performance; quick action; steam that can the fast shut-off outer net; and no steam leakage after closing; meet steam turbine set pump-line valve sets performance requirement, guarantee that unit is in the safety of taking out when moving with fixed attention.
The purpose of this utility model is achieved in that a kind of improved steam turbine set evacuating valve group, comprise that electric butterfly valve that taking out of steam turbine set connects on the machine assembly air-exhausting pipeline with fixed attention and electric gate valve to steam outer net air feed, are installed with the pneumatic valve of cutting soon on the connecting tube between electric butterfly valve and the electric gate valve.
The utility model is transformed steam turbine set evacuating valve combination, after the transformation, pneumatic fast cutting valve is debugged and interlock test, and it opens and closes, and moment is big, quick action, valve opening and closing are rapid, and flow resistance loss is little.The pneumatic valve closing time of cutting soon was less than 3 seconds, and the pneumatic valve of cutting soon cuts out the no steam leakage of back inspection, guaranteed that outer net steam does not return steam supply wheel unit.The utility model reliable performance, steam that can the fast shut-off outer net, and close the no steam leakage in back meets steam turbine set pump-line valve sets performance requirement, guaranteed that unit is in the safety of taking out when moving with fixed attention.
Description of drawings
The utility model will be further described below in conjunction with accompanying drawing, and accompanying drawing 1 is a structural representation of the present utility model.
Embodiment
A kind of improved steam turbine set evacuating valve group, as shown in drawings, comprise that electric butterfly valve 1 that taking out of steam turbine set connects on the machine assembly air-exhausting pipeline with fixed attention and electric gate valve 3 to steam outer net air feed, are installed with the pneumatic valve 2 of cutting soon on the connecting tube between electric butterfly valve 1 and the electric gate valve 3.Pneumatic operating temperature of cutting valve 2 soon is 350 ℃, and working pressure is 1.6Mpa, and working medium is a superheated vapor, and valve version is pneumatic single-acting.
Claims (2)
1. improved steam turbine set evacuating valve group, comprise that electric butterfly valve (1) that taking out of steam turbine set connects on the machine assembly air-exhausting pipeline with fixed attention and electric gate valve (3) to steam outer net air feed, is characterized in that: the pneumatic valve (2) of cutting soon is installed on the connecting tube between electric butterfly valve (1) and the electric gate valve (3).
2. improved steam turbine set evacuating valve group according to claim 1 is characterized in that: pneumatic operating temperature of cutting valve (2) soon is 350 ℃, and working pressure is 1.6Mpa, and working medium is a superheated vapor, and valve version is pneumatic single-acting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200581001U CN201943760U (en) | 2011-03-08 | 2011-03-08 | Improved air exhaust valve set of turboset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200581001U CN201943760U (en) | 2011-03-08 | 2011-03-08 | Improved air exhaust valve set of turboset |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201943760U true CN201943760U (en) | 2011-08-24 |
Family
ID=44471109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200581001U Expired - Fee Related CN201943760U (en) | 2011-03-08 | 2011-03-08 | Improved air exhaust valve set of turboset |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201943760U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134313A (en) * | 2015-08-14 | 2015-12-09 | 江苏永钢集团有限公司 | Control device of steam extracting valve on steam turbine |
-
2011
- 2011-03-08 CN CN2011200581001U patent/CN201943760U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134313A (en) * | 2015-08-14 | 2015-12-09 | 江苏永钢集团有限公司 | Control device of steam extracting valve on steam turbine |
| CN105134313B (en) * | 2015-08-14 | 2016-09-14 | 江苏永钢集团有限公司 | The control device of extraction valve on steam turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20130308 |