CN201202497Y - Adjustable circulating water system for power station steam turbine - Google Patents
Adjustable circulating water system for power station steam turbine Download PDFInfo
- Publication number
- CN201202497Y CN201202497Y CNU2007201745375U CN200720174537U CN201202497Y CN 201202497 Y CN201202497 Y CN 201202497Y CN U2007201745375 U CNU2007201745375 U CN U2007201745375U CN 200720174537 U CN200720174537 U CN 200720174537U CN 201202497 Y CN201202497 Y CN 201202497Y
- Authority
- CN
- China
- Prior art keywords
- circulating water
- pressure condenser
- low pressure
- pipeline
- utility
- 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
Links
Images
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model discloses an adjustable circulating water system for a power plant steam turbine. The system is composed of a high-pressure condenser, a low pressure condenser, valves and pipe fittings through installation and connection, mainly to solve the problem of efficiency reduction of the unit caused by the low pressure condenser which runs over the ultimate vacuum when a double-backpressure unit works in a low temperature environment. Therefore, the circulating water flowing through the low pressure condenser needs to be appropriately reduced. To achieve the goal, the utility model additionally arranges bypass pipelines for the circulating water on the lower pressure condenser and also arranges a regulating valve on each bypass pipeline. Through adjusting the opening of the regulating valves, the utility model can directly adjust the circulating water flow in the bypass pipelines so as to achieve the purpose of indirectly regulating the circulating water flow of the low pressure condenser to enable the low pressure condenser to maintain the best vacuum and also avoid larger condensate super-cooling degree; at the same time, the utility model helps to improve the vacuum of the high pressure condenser, thereby enhancing the running efficiency of the unit.
Description
The application divides an application, the applying date of original application: on July 30th, 2007, and application number: 200720127161.2, invention and created name: a kind of circulation that is used for power station steam turbine.
Affiliated technical field
The utility model is a kind of can regulate circulation that is used for power station steam turbine.This system can improve the Economy that two back pressure units move under low temperature environment.
Background technique
The steam turbine that has two low pressure (LP) cylinders (two vapour condenser) at present has single back pressure type and two kinds of two back pressure types, corresponding different respectively circulations.Two back pressure units are when ambient temperature is low, because that low pressure vapour condenser inlet circulating water temperature is spent is low, cause the low pressure vapour condenser to meet or exceed limiting vacuum, produce bigger condensate undercooling simultaneously.In addition,, and its internal efficiency ratio is descended, also can cause unit operation efficient to reduce because steam turbine last stage off-design operating mode is more.Can not make full use of the Economy that the low advantage of ambient temperature improves unit operation.
Summary of the invention
In order to overcome the deficiency of existing two back pressure turbine circulations, the utility model provides a kind of flow adjustable circulation.In fact be exactly situation about descending according to ambient temperature (circulating water temperature), appropriateness reduces to flow through the circulating water flow of low pressure vapour condenser, and the circulating water flow that flows through the high pressure vapour condenser does not subtract.Regulate by circulating water flow, the vacuum of low pressure vapour condenser can be adjusted to optimum vacuum, thereby improve the Economy of unit operation the low pressure vapour condenser.
The circulating water flow of low pressure vapour condenser is flow through in adjusting, finishes by adjusting modulating valve.By the aperture of adjusting modulating valve the circulating water flow by the low pressure vapour condenser is changed, realize the two economical operation of back pressure unit under low temperature environment.This system is by high pressure vapour condenser (HP
2), low pressure vapour condenser (LP
2), valve (D
21, D
22, D
23, D
24), pipeline (G
21, G
22, G
23, G
24), circulating water supply channel (A
2) and circulating water water return pipeline (B
2) install and to be formed by connecting, it is characterized in that: it has pipeline (G
25), (G
26) and modulating valve (T
1), (T
2), pipeline (G
25) receive pipeline (G respectively into and out of water end (W.E.)
23) and (G
22) on, pipeline (G
26) receive pipeline (G respectively into and out of water end (W.E.)
24) and (G
21) on, modulating valve (T
1), (T
2) be installed in pipeline (G respectively
25), (G
26) on.
The utility model both can apply in the design of new unit circulation, also can carry out the system reform to the unit that now put into operation easily.
Description of drawings
Fig. 1 is two adjustable circulation figure of back pressure unit low pressure vapour condenser circulating water flow.In the drawings, HP
2Be high pressure vapour condenser, LP
2Be low pressure vapour condenser, A
2Be circulating water supply channel, B
2Be circulating water water return pipeline, G
21, G
22Be respectively outer shroud and interior ring circulating water connecting pipeline between the high and low pressure vapour condenser, G
23, G
24, G
25, G
26Be the pipeline in the circulation, D
21, D
22, D
23, D
24Be the valve on the circulation pipeline, T
1, T
2Be low pressure vapour condenser circulating water bypass valve, T
1, T
2Be installed in G respectively
25, G
26On.
Embodiment (referring to Fig. 1)
Normal two back pressure operation mode: in the drawings, valve D
21, D
22, D
23, D
24In opening state, T
1, T
2In off position, under this mode, the circulating water series aiding connection in the inner and outer rings circulating water line flows through the high and low pressure vapour condenser, and the circulating water temperature of two vapour condenser is different, the vacuum of two vapour condenser is also different, and circulation is normal two back pressure operation mode.The mobile route of circulating water is:
Circulating water outer shroud: A
2→ D
24→ G
24→ LP
2→ G
21→ HP
2→ D
21→ B
2
Ring: A in the circulating water
2→ D
23→ G
23→ LP
2→ G
22→ HP
2→ D
22→ B
2
Two backpressure regulation methods of operation: in the drawings, valve D
21, D
22, D
23, D
24In opening state, as modulating valve T
1, T
2When part was opened, part circulating water was through T
1, T
2Be flowed directly to high pressure vapour condenser inlet, its effect is under low temperature environment, reduces the circulating water flow of low pressure vapour condenser, by regulating T
1, T
2Aperture, the vacuum of low pressure vapour condenser can be adjusted to optimum vacuum.Because the circulating water flow dynamic resistance reduces, circulating water flow by the high pressure vapour condenser is slightly increased on original basis, and high pressure vapour condenser inlet circulating water temperature also slightly reduces, and the vacuum of high pressure vapour condenser is increased, can make full use of low temperature environment, improve the Economy of unit.
The circulating water outer shroud:
Ring in the circulating water:
Claims (1)
1, a kind of can regulate circulation that is used for power station steam turbine is by high pressure vapour condenser (HP
2), low pressure vapour condenser (LP
2), valve (D
21, D
22, D
23, D
24), pipeline (G
21, G
22, G
23, G
24), circulating water supply channel (A
2) and circulating water water return pipeline (B
2) install and to be formed by connecting, it is characterized in that: it has pipeline (G
25), (G
26) and modulating valve (T
1), (T
2), pipeline (G
25) receive pipeline (G respectively into and out of water end (W.E.)
23) and (G
22) on, pipeline (G
26) receive pipeline (G respectively into and out of water end (W.E.)
24) and (G
21) on, modulating valve (T
1), (T
2) be installed in pipeline (G respectively
25), (G
26) on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201745375U CN201202497Y (en) | 2007-07-30 | 2007-07-30 | Adjustable circulating water system for power station steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201745375U CN201202497Y (en) | 2007-07-30 | 2007-07-30 | Adjustable circulating water system for power station steam turbine |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201271612U Division CN201209466Y (en) | 2007-07-30 | 2007-07-30 | Circulating water system for power station steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201202497Y true CN201202497Y (en) | 2009-03-04 |
Family
ID=40424811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201745375U Expired - Fee Related CN201202497Y (en) | 2007-07-30 | 2007-07-30 | Adjustable circulating water system for power station steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201202497Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564188A (en) * | 2014-12-29 | 2015-04-29 | 南京凯盛开能环保能源有限公司 | Full-automatic control method and full-automatic control system for cement waste heat power generation station |
| CN105865220A (en) * | 2016-05-26 | 2016-08-17 | 中国大唐集团科学技术研究院有限公司华东分公司 | Double backpressure condenser optimized operation device and operation method thereof |
-
2007
- 2007-07-30 CN CNU2007201745375U patent/CN201202497Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564188A (en) * | 2014-12-29 | 2015-04-29 | 南京凯盛开能环保能源有限公司 | Full-automatic control method and full-automatic control system for cement waste heat power generation station |
| CN104564188B (en) * | 2014-12-29 | 2016-01-20 | 南京凯盛开能环保能源有限公司 | A kind of cement afterheat generation station control method for fully automatic and system |
| CN105865220A (en) * | 2016-05-26 | 2016-08-17 | 中国大唐集团科学技术研究院有限公司华东分公司 | Double backpressure condenser optimized operation device and operation method thereof |
| CN105865220B (en) * | 2016-05-26 | 2017-08-04 | 中国大唐集团科学技术研究院有限公司华东分公司 | A kind of operation method of double pressure condenser optimized operating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108005741B (en) | Cogeneration system for improving heat supply safety of back condensation and back extraction and adjustment method | |
| JPS6193208A (en) | Turbine bypass system | |
| CN109869784B (en) | Combined cycle device for steam extraction integration and heat accumulation peak shaving coupling and operation method thereof | |
| RU2011107519A (en) | STEAM TURBINE INSTALLATION, TURBO INSTALLATION AND METHOD OF OPERATION OF TURBO INSTALLATION | |
| CN103452600A (en) | Steam turbine generating system with indirect regulation on regenerative side and primary frequency regulating method | |
| CN103836608B (en) | Low pressure drain cooler heat regenerative system | |
| CN204113354U (en) | A kind of gland seal system and thermodynamic system of steam tur | |
| CN201202497Y (en) | Adjustable circulating water system for power station steam turbine | |
| RU2008130528A (en) | TURBINE SYSTEMS AND METHODS FOR USING THE INTERNAL LEAK FLOW FOR COOLING | |
| JP2010242673A (en) | Steam turbine system and method for operating the same | |
| CN201209466Y (en) | Circulating water system for power station steam turbine | |
| CN110159360B (en) | Shaft seal steam supply system and method for gas-steam combined cycle power plant | |
| CN106996322B (en) | The open cycle cooling water system of turbine LP rotors | |
| CN210178429U (en) | Heating system for steam extraction integration of gas-steam combined cycle unit | |
| CN108561190B (en) | Shaft seal system of steam turbine | |
| CN207674551U (en) | A kind of cooling tower antifreezing system for the solidifying pumping back of the body heat supply of steam turbine | |
| CN203499733U (en) | Steam turbine power generation system adopting regeneration-side indirect regulation | |
| CN114370307B (en) | Steam turbine high-pressure steam guide pipe drainage system and drainage method | |
| RU2012152097A (en) | METHOD FOR QUICK CONNECTION OF STEAM GENERATOR | |
| CN214714454U (en) | Surplus heat utilization device in rectification production | |
| CN210087400U (en) | Gas-steam combined cycle power plant shaft seal steam supply system | |
| CN204609957U (en) | A kind of Air-cooler Unit Feed Pump drive unit | |
| RU151790U1 (en) | SOURCE OF ELECTRIC SUPPLY BASED ON HYDRAULIC ELECTRIC STATION | |
| CN208578589U (en) | A kind of steam turbine gland system of overflow heat recovery cascade utilization | |
| CN105333415A (en) | Water supply system of low-capacity external type steam cooler |
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: 20090304 |