CN103912325A - Device for implementing high-back-pressure adjustable running of circulating water heat-supplying condenser of cogeneration units - Google Patents
Device for implementing high-back-pressure adjustable running of circulating water heat-supplying condenser of cogeneration units Download PDFInfo
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- CN103912325A CN103912325A CN201410149673.3A CN201410149673A CN103912325A CN 103912325 A CN103912325 A CN 103912325A CN 201410149673 A CN201410149673 A CN 201410149673A CN 103912325 A CN103912325 A CN 103912325A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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Abstract
The invention relates to a device for implementing high-back-pressure adjustable running of a circulating water heat-supplying condenser of cogeneration units. The device comprises a steam turbine. The steam turbine is connected with the condenser through an exhaust hood. The device is characterized in that the condenser is divided into a first condenser area and a second condenser area which are independent from each other; a first condenser area water inlet and a first condenser area water outlet are respectively formed in the first condenser area; and a second condenser area water inlet and a second condenser area water outlet are respectively formed in the second condenser area. The device has the advantages that the flexibility and the safety of the load carrying capacity of the units are improved; pressure bearing can meet requirements of a heat supply network; power can be supplied to the great extent while heat supply of the units is guaranteed to the great extent; circulating water of the second condenser area can totally replace the load of the heat supply network under extreme operating conditions, and halt accidents cannot be caused; the circulating water of the second condenser area keeps zero when the units have full load in an extreme cold area; and the device is simple, practicable, economical and reliable.
Description
(1) technical field
The invention belongs to cogeneration units heating energy-saving technical field, particularly a kind of cogeneration units circulating water heating vapour condenser is realized the adjustable running gear of high back pressure.
(2) background technique
Thermal power plant cogeneration units when heat supply, starts to adopt high back pressure circulating water heating technology in the winter time.Adopt this technology, by turbine low pressure cylinder exhaust steam pressure bring up to 33kPa and more than, exhaust temperature is generally more than 65 ℃.Turbine discharge can directly heat heat supply network circulating water by vapour condenser, to user's heat supply.This technology will be recycled the exhaust steam of sky discharge originally, and realizing cold source energy is zero, and more than unit thermal efficiency of cycle reaches 95 ﹪, area of heat-supply service can double, and effects of energy saving and emission reduction is very remarkable.
But, adopt high back pressure circulating water heating technology, originally the condenser pressure of design is on the low side, can not meet the requirement of hot net water pressure.Simultaneously, adopt high back pressure circulating water heating, the operation of unit electricity determining by heat, electric load and heat supply network corresponding cannot the adjusting one by one of loading, heat load directly affects the height of electric load, and unit itself, without mean of calculating, has a strong impact on the economical operation of unit, the electric load that directly affects unit in the time that heat supply network goes wrong, the safety and reliability of unit is limited by the Security of heat supply network.
(3) summary of the invention
The present invention, in order to make up the deficiency of above-mentioned technology, provides a kind of cogeneration units circulating water heating vapour condenser to realize the adjustable running gear of high back pressure.
The present invention is achieved through the following technical solutions:
A kind of cogeneration units circulating water heating vapour condenser is realized the adjustable running gear of high back pressure, comprise steam turbine, steam turbine connects vapour condenser by exhaust casing, it is characterized in that: described vapour condenser is divided into independently vapour condenser one district and vapour condenser 2nd district, in vapour condenser one district, be respectively equipped with vapour condenser one district's water intake and vapour condenser one district's water outlet, in vapour condenser 2nd district, be respectively equipped with vapour condenser two district's water intakes and vapour condenser two district's water outlets.
Described vapour condenser one district's water intake connects hot net water water return pipeline, and vapour condenser one district's water outlet connects hot net water water supply line, and vapour condenser two district's water intakes connect circulating water water supply line, and vapour condenser two district's water outlets connect circulating water water return pipeline.
On described hot net water water return pipeline, hot net water water supply line, circulating water water supply line and circulating water water return pipeline, be connected with respectively circulating water pump.
The invention has the beneficial effects as follows: can realize that heat supply, pure condensate are used simultaneously and use respectively the flexibility and the Security that have improved unit on-load ability; Pressure-bearing can reach heat supply network requirement; When can guaranteeing to greatest extent unit heat supply, many power supplies to greatest extent, have increased income; Under extreme operating condition, vapour condenser two district's circulating waters can all be taken over heat supply network load, and unit can be stablized 50% load, can not cause stopping accident; At utmost point cool region, when unit can be with at full capacity, keeping vapour condenser two district's circulating waters is zero; Simple, economical reliable.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Accompanying drawing 1 is structural representation of the present invention;
In figure, 1 steam turbine, 2 vapour condenser, 3 vapour condenser one district, 4 vapour condenser 2nd district, 5 vapour condenser one district's water intakes, 6 vapour condenser one district's water outlets, 7 vapour condenser two district's water intakes, 8 vapour condenser two district's water outlets, 9 hot net water water return pipelines, 10 hot net water water supply lines, 11 circulating water water supply lines, 12 circulating water water return pipelines, 13 circulating water pump.
(5) embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.This embodiment comprises steam turbine 1, steam turbine 1 connects vapour condenser 2 by exhaust casing, vapour condenser 2 is divided into independently vapour condenser one district 3 and vapour condenser two districts 4, in vapour condenser one district 3, be respectively equipped with vapour condenser one district's water intake 5 and vapour condenser one district's water outlet 6, in vapour condenser two districts 4, be respectively equipped with vapour condenser two district's water intakes 7 and vapour condenser two district's water outlets 8.Vapour condenser one district's water intake 5 connects hot net water water return pipeline 9, and vapour condenser one district's water outlet 6 connects hot net water water supply line 10, and vapour condenser two district's water intakes 7 connect circulating water water supply line 11, and vapour condenser two district's water outlets 8 connect circulating water water return pipeline 12.On hot net water water return pipeline 9, hot net water water supply line 10, circulating water water supply line 11 and circulating water water return pipeline 12, be connected with respectively circulating water pump 13.
Adopt cogeneration units circulating water heating vapour condenser of the present invention to realize the adjustable running gear of high back pressure, heating period, steam turbine 1 improves back pressure, and vapour condenser one district 3 passes into hot net water and absorbs steam turbine 1 exhaust steam heat, externally heat supply; The unnecessary heat of steam discharge is taken away by vapour condenser two district's 4 circulating waters, can regulate circulating water pump 13 to load by back pressure controller, to regulate circulating water flow to regulate unit back pressure, adjusts load.Non-for the hot season, when pure condensate operation, vapour condenser one district 3 switches to circulating water line by valve, and steam discharge enters two vapour condenser, one district 3 and vapour condenser two districts 4, is all taken away cooling by circulating water.Vapour condenser one district 3 and vapour condenser two districts 4 can independent operatings, and due to heating period, the half of circulating water flow when hot net water underfed pure condensate operating mode, can meet heat exchange requirement therefore only need vapour condenser one district 3 to pass into hot net water; Vapour condenser two districts 4 pass into a small amount of former circulating water in order to regulate steam turbine 1 back pressure.
Claims (3)
1. a cogeneration units circulating water heating vapour condenser is realized the adjustable running gear of high back pressure, comprise steam turbine (1), steam turbine (1) connects vapour condenser (2) by exhaust casing, it is characterized in that: described vapour condenser (2) is divided into independently vapour condenser one district (3) and vapour condenser 2nd district (4), in vapour condenser one district (3), be respectively equipped with vapour condenser one district's water intake (5) and vapour condenser one district's water outlet (6), in vapour condenser 2nd district (4), be respectively equipped with vapour condenser two district's water intakes (7) and vapour condenser two district's water outlets (8).
2. cogeneration units circulating water heating vapour condenser according to claim 1 is realized the adjustable running gear of high back pressure, it is characterized in that: described vapour condenser one district's water intake (5) connects hot net water water return pipeline (9), vapour condenser one district's water outlet (6) connects hot net water water supply line (10), vapour condenser two district's water intakes (7) connect circulating water water supply line (11), and vapour condenser two district's water outlets (8) connect circulating water water return pipeline (12).
3. cogeneration units circulating water heating vapour condenser according to claim 2 is realized the adjustable running gear of high back pressure, it is characterized in that: on described hot net water water return pipeline (9), hot net water water supply line (10), circulating water water supply line (11) and circulating water water return pipeline (12), be connected with respectively circulating water pump (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410149673.3A CN103912325B (en) | 2014-04-15 | 2014-04-15 | Cogeneration units circulating water heating condenser is realized the adjustable running gear of high back pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410149673.3A CN103912325B (en) | 2014-04-15 | 2014-04-15 | Cogeneration units circulating water heating condenser is realized the adjustable running gear of high back pressure |
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| Publication Number | Publication Date |
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| CN103912325A true CN103912325A (en) | 2014-07-09 |
| CN103912325B CN103912325B (en) | 2016-05-11 |
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| CN201410149673.3A Expired - Fee Related CN103912325B (en) | 2014-04-15 | 2014-04-15 | Cogeneration units circulating water heating condenser is realized the adjustable running gear of high back pressure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910454A (en) * | 2016-05-17 | 2016-08-31 | 山东泓奥电力科技有限公司 | Direct high back pressure heat supply system of indirect air cooling unit |
| CN113587185A (en) * | 2021-07-01 | 2021-11-02 | 国核电力规划设计研究院有限公司 | Heat supply system of nuclear power unit and control method of heat supply system |
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| US4170879A (en) * | 1977-01-14 | 1979-10-16 | Ingeborg Laing | Method and system for utilizing waste heat generated in thermal electric power stations |
| SU1249180A1 (en) * | 1983-08-03 | 1986-08-07 | Научно-Производственное Объединение По Исследованию И Проектированию Энергетического Оборудования Им.И.И.Ползунова | Steam-turbine extraction plant |
| CN102607088A (en) * | 2012-03-29 | 2012-07-25 | 兖州煤业股份有限公司 | High-efficiency and energy-saving heating method and heating system |
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| CN203891948U (en) * | 2014-04-15 | 2014-10-22 | 山东翰飞电力科技有限公司 | Adjustable operation device achieving high back pressure by circulating water heat supplying condensers of cogeneration units |
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2014
- 2014-04-15 CN CN201410149673.3A patent/CN103912325B/en not_active Expired - Fee Related
Patent Citations (5)
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| US4170879A (en) * | 1977-01-14 | 1979-10-16 | Ingeborg Laing | Method and system for utilizing waste heat generated in thermal electric power stations |
| SU1249180A1 (en) * | 1983-08-03 | 1986-08-07 | Научно-Производственное Объединение По Исследованию И Проектированию Энергетического Оборудования Им.И.И.Ползунова | Steam-turbine extraction plant |
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| CN203114363U (en) * | 2013-01-08 | 2013-08-07 | 山东泓奥电力科技有限公司 | Large thermal generator set high back pressure circulating water heat supplying energy-saving system |
| CN203891948U (en) * | 2014-04-15 | 2014-10-22 | 山东翰飞电力科技有限公司 | Adjustable operation device achieving high back pressure by circulating water heat supplying condensers of cogeneration units |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910454A (en) * | 2016-05-17 | 2016-08-31 | 山东泓奥电力科技有限公司 | Direct high back pressure heat supply system of indirect air cooling unit |
| CN113587185A (en) * | 2021-07-01 | 2021-11-02 | 国核电力规划设计研究院有限公司 | Heat supply system of nuclear power unit and control method of heat supply system |
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| Publication number | Publication date |
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| CN103912325B (en) | 2016-05-11 |
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Granted publication date: 20160511 Termination date: 20190415 |