CN203891948U - Adjustable operation device achieving high back pressure by circulating water heat supplying condensers of cogeneration units - Google Patents
Adjustable operation device achieving high back pressure by circulating water heat supplying condensers of cogeneration units Download PDFInfo
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- CN203891948U CN203891948U CN201420180881.5U CN201420180881U CN203891948U CN 203891948 U CN203891948 U CN 203891948U CN 201420180881 U CN201420180881 U CN 201420180881U CN 203891948 U CN203891948 U CN 203891948U
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Abstract
The utility model relates to an adjustable operation device achieving high back pressure by circulating water heat supplying condensers of cogeneration units. The adjustable operation device comprises a turbine which is connected with a condenser via an exhaust hood. The adjustable operation device is characterized in that the condenser is divided into a condenser 1 area and a condenser 2 area which are independent. A condenser 1 area water inlet and a condenser 1 area water outlet are separately arranged in the condenser 1 area. A condenser 2 area water inlet and a condenser 2 area water outlet are separately arranged in the condenser 2 area. The beneficial effects of the adjustable operation device are that flexibility and safety of load carrying capacity of the units are improved; pressure bearing can achieve requirements of a heat supply network; while heat supplying of the units is ensured to the maximum degree, much power can be provided to the maximum degree; the condenser 2 area circulating water is capable of fully replacing the load of the heat supply network in an extreme operating condition, so a halt accident will not be caused; in an extreme cold area, the units are capable of carrying full load, the condenser 2 area circulating water is kept as zero; and the adjustable operation device is easy to operate, economic and reliable.
Description
(1) technical field
The utility model belongs to cogeneration units heating energy-saving technical field, and 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 during 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 is zero by originally the exhaust steam of sky discharge being recycled, and realizing cold source energy, 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, when heat supply network goes wrong, directly affect the electric load of unit, the safety and reliability of unit is limited by the Security of heat supply network.
(3) summary of the invention
The utility model, 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 utility model is achieved by the following technical solution:
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 beneficial effects of the utility model are: 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 guarantee 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 utility model is further described.
Accompanying drawing 1 is structural representation of the present utility model;
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 utility model.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 utility model 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 loads by back pressure controller, to regulate circulating water flow to regulate unit back pressure, adjusts load.Non-for the hot season, during 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, all by circulating water, is taken away cooling.Vapour condenser one district 3 and vapour condenser two districts 4 can independent operatings, and due to heating period, half of circulating water flow during 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 |
|---|---|---|---|
| CN201420180881.5U CN203891948U (en) | 2014-04-15 | 2014-04-15 | Adjustable operation device achieving high back pressure by circulating water heat supplying condensers of cogeneration units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420180881.5U CN203891948U (en) | 2014-04-15 | 2014-04-15 | Adjustable operation device achieving high back pressure by circulating water heat supplying condensers of cogeneration units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203891948U true CN203891948U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420180881.5U Expired - Fee Related CN203891948U (en) | 2014-04-15 | 2014-04-15 | Adjustable operation device achieving high back pressure by circulating water heat supplying condensers of cogeneration units |
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| CN (1) | CN203891948U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912325A (en) * | 2014-04-15 | 2014-07-09 | 山东翰飞电力科技有限公司 | Device for implementing high-back-pressure adjustable running of circulating water heat-supplying condenser of cogeneration units |
| CN104482582A (en) * | 2014-12-12 | 2015-04-01 | 华电电力科学研究院 | Fully-adaptive single-rotor low-vacuum circulating water heating system |
-
2014
- 2014-04-15 CN CN201420180881.5U patent/CN203891948U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912325A (en) * | 2014-04-15 | 2014-07-09 | 山东翰飞电力科技有限公司 | Device for implementing high-back-pressure adjustable running of circulating water heat-supplying condenser of cogeneration units |
| CN103912325B (en) * | 2014-04-15 | 2016-05-11 | 山东翰飞电力科技有限公司 | Cogeneration units circulating water heating condenser is realized the adjustable running gear of high back pressure |
| CN104482582A (en) * | 2014-12-12 | 2015-04-01 | 华电电力科学研究院 | Fully-adaptive single-rotor low-vacuum circulating water heating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20190415 |