CN204404310U - Air cooling unit exhaust steam waste heat plural serial stage heating system - Google Patents

Air cooling unit exhaust steam waste heat plural serial stage heating system Download PDF

Info

Publication number
CN204404310U
CN204404310U CN201520011643.6U CN201520011643U CN204404310U CN 204404310 U CN204404310 U CN 204404310U CN 201520011643 U CN201520011643 U CN 201520011643U CN 204404310 U CN204404310 U CN 204404310U
Authority
CN
China
Prior art keywords
unit
level
back pressure
thermal power
power plant
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.)
Active
Application number
CN201520011643.6U
Other languages
Chinese (zh)
Inventor
郝相俊
杜洪岩
王新平
王远清
刘冲
严鑫
赵瑞平
王强
郭东奇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Co Ltd Of Chinese Energy Construction Group Shanxi Electric Power Exploration & Design Institute
Original Assignee
Co Ltd Of Chinese Energy Construction Group Shanxi Electric Power Exploration & Design Institute
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Co Ltd Of Chinese Energy Construction Group Shanxi Electric Power Exploration & Design Institute filed Critical Co Ltd Of Chinese Energy Construction Group Shanxi Electric Power Exploration & Design Institute
Priority to CN201520011643.6U priority Critical patent/CN204404310U/en
Application granted granted Critical
Publication of CN204404310U publication Critical patent/CN204404310U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of air cooling unit exhaust steam waste heat plural serial stage heating system, solve the problem that the utilization rate of waste heat of existing waste heat for supplying technology existence is low.Comprise first order back pressure thermal power plant unit (1), second level back pressure thermal power plant unit (2), third level back pressure thermal power plant unit (3), fourth stage back pressure thermal power plant unit (4) and peak load calorifier (5), be linked in sequence between thermal power plant unit at different levels and peak load calorifier, heat supply network recirculated water realizes step heating by unit at different levels successively.The beneficial effects of the utility model the heating system of heat supply hot net water are optimized to level Four heating, reduces the thermograde of hot net water in heating process poor, thus decrease the exergy destruction in diabatic process.System is simple, can realize heating parameter flexible modulation by adjustment turbine back pressure parameter.Native system is applicable to Direct Air-Cooling in Thermal Power Plants unit, is particularly suitable for the occasion of multiple stage unit paired running.

Description

Air cooling unit exhaust steam waste heat plural serial stage heating system
Technical field
The utility model relates to a kind of plural serial stage heating system utilizing the gradient stepped heating heat supply network recirculated water of Direct Air-cooled Unit back pressure, is a kind of heating system directly reclaiming unit exhaust steam residual heat.
Background technology
Along with the continuous propelling of urbanization, the capacity of existing city heat supply thermal source can not meet the needs that city increases load newly.In recent years, the engineering utilizing the exhaust steam residual heat of unit to carry out heat supply gets more and more.The technology of waste heat for supplying is utilized to mainly contain three kinds at present: the first is heat pump heat supply technology, utilize absorption or compression heat pump to get off to extract exhaust steam in steam turbine waste heat and high-quality can heat heat supply network recirculated water in the lump in the driving of certain high-quality energy, the ratio that the exhaust steam residual heat heating load of a Heating Season accounts for gross heat input is about 30%-40%.The second is preposition condenser heat pump heat supply process, the exhaust steam residual heat utilizing preposition condenser directly to absorb unit carries out one-level heating to heat supply network recirculated water, utilize heat pump certain high-quality can driving under extract a part of exhaust steam residual heat and can carry out secondary heating to heat supply network recirculated water with high-quality in the lump, the ratio that the exhaust steam residual heat heating load of a Heating Season accounts for gross heat input is about 45%-55%.The third is high back pressure heat supply process, the back pressure of an Air-cooled Unit is improved, directly absorb the exhaust steam residual heat heating heat supply network recirculated water of unit by arranging jumbo condenser, the ratio that the exhaust steam residual heat heating load of a Heating Season accounts for gross heat input is about 55%-65%.All there is the low problem of utilization rate of waste heat in the technology of above waste heat for supplying.
Summary of the invention
The utility model provides a kind of air cooling unit exhaust steam waste heat plural serial stage heating system, solves the technical problem that the utilization rate of waste heat of existing waste heat for supplying technology existence is low.
The utility model solves above technical problem by the following technical programs:
A kind of air cooling unit exhaust steam waste heat plural serial stage heating system, comprise first order back pressure thermal power plant unit, second level back pressure thermal power plant unit, third level back pressure thermal power plant unit, fourth stage back pressure thermal power plant unit and peak load calorifier, the exhaust port of first order unit condenser is connected together by the Direct Air-Cooled exhaust line of first order heat supply exhaust steam pipeline and first order back pressure thermal power plant unit, the exhaust steam condensation mouth of a river of first order unit condenser is connected together by the steam exhaust device hot well of first order heat supply exhaust steam condensing water conduit and first order back pressure thermal power plant unit, municipal heating systems water return pipeline is connected together by the inlet channel of first order unit condenser and first order unit condenser, first power generator turbine of first order back pressure thermal power plant unit is connected together by first order unit extraction line and peak load calorifier, the condensate water outlet of drawing gas of first order unit on peak load calorifier is connected together by the draw gas steam exhaust device hot well of condensing water conduit and first order back pressure thermal power plant unit of first order unit, the exhaust port of second level unit condenser is connected together by the Direct Air-Cooled exhaust line of second level heat supply exhaust steam pipeline and second level back pressure thermal power plant unit, the exhaust steam condensation mouth of a river of second level unit condenser is connected together by the steam exhaust device hot well of second level heat supply exhaust steam condensing water conduit and second level back pressure thermal power plant unit, the delivery port of first order unit condenser is connected together by the inlet channel of second level unit condenser and second level unit condenser, second power generator turbine of second level back pressure thermal power plant unit is connected together by second level unit extraction line and peak load calorifier, the condensate water outlet of drawing gas of second level unit on peak load calorifier is connected together by the draw gas steam exhaust device hot well of condensing water conduit and second level back pressure thermal power plant unit of second level unit, the exhaust port of third level unit condenser is connected together by the Direct Air-Cooled exhaust line of third level heat supply exhaust steam pipeline and third level back pressure thermal power plant unit, the exhaust steam condensation mouth of a river of third level unit condenser is connected together by the steam exhaust device hot well of third level heat supply exhaust steam condensing water conduit and third level back pressure thermal power plant unit, the delivery port of second level unit condenser is connected together by the inlet channel of third level unit condenser and third level unit condenser, 3rd power generator turbine of third level back pressure thermal power plant unit is connected together by third level unit extraction line and peak load calorifier, the condensate water outlet of drawing gas of third level unit on peak load calorifier is connected together by the draw gas steam exhaust device hot well of condensing water conduit and third level back pressure thermal power plant unit of third level unit, the exhaust port of fourth stage unit condenser is connected together by the Direct Air-Cooled exhaust line of fourth stage heat supply exhaust steam pipeline and fourth stage back pressure thermal power plant unit, the exhaust steam condensation mouth of a river of fourth stage unit condenser is connected together by the steam exhaust device hot well of fourth stage heat supply exhaust steam condensing water conduit and fourth stage back pressure thermal power plant unit, the delivery port of third level unit condenser is connected together by the inlet channel of fourth stage unit condenser and fourth stage unit condenser, the delivery port of fourth stage unit condenser is communicated with peak load calorifier by the outlet pipeline of fourth stage unit condenser, the delivery port of peak load calorifier is connected with municipal heating systems recirculated water supply channel.
The utility model significantly improves the utilization rate of waste heat of unit heat supply, and the ratio that the exhaust steam residual heat heating load of a Heating Season accounts for gross heat input is about 72-90%.And simplify heating system, system is improved for aspects such as the adaptability of unit, the flexibilities of heat supply temperature adjustment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail:
A kind of air cooling unit exhaust steam waste heat plural serial stage heating system, comprise first order back pressure thermal power plant unit 1, second level back pressure thermal power plant unit 2, third level back pressure thermal power plant unit 3, fourth stage back pressure thermal power plant unit 4 and peak load calorifier 5, the exhaust port of first order unit condenser 6 is connected together by the Direct Air-Cooled exhaust line 8 of first order heat supply exhaust steam pipeline 7 with first order back pressure thermal power plant unit 1, the exhaust steam condensation mouth of a river of first order unit condenser 6 is connected together by the steam exhaust device hot well 10 of first order heat supply exhaust steam condensing water conduit 9 with first order back pressure thermal power plant unit 1, municipal heating systems water return pipeline 11 is connected together with first order unit condenser 6 by the inlet channel 12 of first order unit condenser 6, first power generator turbine 13 of first order back pressure thermal power plant unit 1 is connected together by first order unit extraction line 14 and peak load calorifier 5, the condensate water outlet of drawing gas of first order unit on peak load calorifier 5 is connected together with the steam exhaust device hot well 10 of first order back pressure thermal power plant unit 1 by draw gas condensing water conduit 24 of first order unit, the exhaust port of second level unit condenser 15 is connected together by the Direct Air-Cooled exhaust line 17 of second level heat supply exhaust steam pipeline 16 with second level back pressure thermal power plant unit 2, the exhaust steam condensation mouth of a river of second level unit condenser 15 is connected together by the steam exhaust device hot well 10 of second level heat supply exhaust steam condensing water conduit 18 with second level back pressure thermal power plant unit 2, the delivery port 20 of first order unit condenser 6 is connected together with second level unit condenser 15 by the inlet channel 21 of second level unit condenser 15, second power generator turbine 22 of second level back pressure thermal power plant unit 2 is connected together by second level unit extraction line 23 and peak load calorifier 5, the condensate water outlet of drawing gas of second level unit on peak load calorifier 5 is connected together with the steam exhaust device hot well 19 of second level back pressure thermal power plant unit 2 by draw gas condensing water conduit 25 of second level unit, the exhaust port of third level unit condenser 26 is connected together by the Direct Air-Cooled exhaust line 28 of third level heat supply exhaust steam pipeline 27 with third level back pressure thermal power plant unit 3, the exhaust steam condensation mouth of a river of third level unit condenser 26 is connected together by the steam exhaust device hot well 30 of third level heat supply exhaust steam condensing water conduit 29 with third level back pressure thermal power plant unit 3, the delivery port 31 of second level unit condenser 15 is connected together with third level unit condenser 26 by the inlet channel 32 of third level unit condenser 26, 3rd power generator turbine 33 of third level back pressure thermal power plant unit 3 is connected together by third level unit extraction line 34 and peak load calorifier 5, the condensate water outlet of drawing gas of third level unit on peak load calorifier 5 is connected together with the steam exhaust device hot well 30 of third level back pressure thermal power plant unit 3 by draw gas condensing water conduit 35 of third level unit, the exhaust port of fourth stage unit condenser 36 is connected together by the Direct Air-Cooled exhaust line 38 of fourth stage heat supply exhaust steam pipeline 37 with fourth stage back pressure thermal power plant unit 4, the exhaust steam condensation mouth of a river of fourth stage unit condenser 36 is connected together by the steam exhaust device hot well 39 of fourth stage heat supply exhaust steam condensing water conduit 39 with fourth stage back pressure thermal power plant unit 4, the delivery port 40 of third level unit condenser 26 is connected together with fourth stage unit condenser 36 by the inlet channel 41 of fourth stage unit condenser 36, the delivery port 42 of fourth stage unit condenser 36 is communicated with peak load calorifier 5 by the outlet pipeline 43 of fourth stage unit condenser 36, the delivery port of peak load calorifier 5 is connected with municipal heating systems recirculated water supply channel 45.
The beneficial effects of the utility model the heating system of heat supply hot net water are optimized to level Four heating, reduces the thermograde of hot net water in heating process poor, thus decrease the exergy destruction in diabatic process.Native system is simple, can realize heating parameter flexible modulation by adjustment turbine back pressure parameter.Native system is applicable to Direct Air-Cooling in Thermal Power Plants unit, is particularly suitable for the occasion of multiple stage unit paired running.

Claims (1)

1. an air cooling unit exhaust steam waste heat plural serial stage heating system, comprise first order back pressure thermal power plant unit (1), second level back pressure thermal power plant unit (2), third level back pressure thermal power plant unit (3), fourth stage back pressure thermal power plant unit (4) and peak load calorifier (5), it is characterized in that, the exhaust port of first order unit condenser (6) is connected together by the Direct Air-Cooled exhaust line (8) of first order heat supply exhaust steam pipeline (7) with first order back pressure thermal power plant unit (1), the exhaust steam condensation mouth of a river of first order unit condenser (6) is connected together by the steam exhaust device hot well (10) of first order heat supply exhaust steam condensing water conduit (9) with first order back pressure thermal power plant unit (1), municipal heating systems water return pipeline (11) is connected together with first order unit condenser (6) by the inlet channel (12) of first order unit condenser (6), first power generator turbine (13) of first order back pressure thermal power plant unit (1) is connected together by first order unit extraction line (14) and peak load calorifier (5), the condensate water outlet of drawing gas of first order unit on peak load calorifier (5) is connected together by the draw gas steam exhaust device hot well (10) of condensing water conduit (24) and first order back pressure thermal power plant unit (1) of first order unit, the exhaust port of second level unit condenser (15) is connected together by the Direct Air-Cooled exhaust line (17) of second level heat supply exhaust steam pipeline (16) with second level back pressure thermal power plant unit (2), the exhaust steam condensation mouth of a river of second level unit condenser (15) is connected together by the steam exhaust device hot well (10) of second level heat supply exhaust steam condensing water conduit (18) with second level back pressure thermal power plant unit (2), the delivery port (20) of first order unit condenser (6) is connected together with second level unit condenser (15) by the inlet channel (21) of second level unit condenser (15), second power generator turbine (22) of second level back pressure thermal power plant unit (2) is connected together by second level unit extraction line (23) and peak load calorifier (5), the condensate water outlet of drawing gas of second level unit on peak load calorifier (5) is connected together by the draw gas steam exhaust device hot well (19) of condensing water conduit (25) and second level back pressure thermal power plant unit (2) of second level unit, the exhaust port of third level unit condenser (26) is connected together by the Direct Air-Cooled exhaust line (28) of third level heat supply exhaust steam pipeline (27) with third level back pressure thermal power plant unit (3), the exhaust steam condensation mouth of a river of third level unit condenser (26) is connected together by the steam exhaust device hot well (30) of third level heat supply exhaust steam condensing water conduit (29) with third level back pressure thermal power plant unit (3), the delivery port (31) of second level unit condenser (15) is connected together with third level unit condenser (26) by the inlet channel (32) of third level unit condenser (26), 3rd power generator turbine (33) of third level back pressure thermal power plant unit (3) is connected together by third level unit extraction line (34) and peak load calorifier (5), the condensate water outlet of drawing gas of third level unit on peak load calorifier (5) is connected together by the draw gas steam exhaust device hot well (30) of condensing water conduit (35) and third level back pressure thermal power plant unit (3) of third level unit, the exhaust port of fourth stage unit condenser (36) is connected together by the Direct Air-Cooled exhaust line (38) of fourth stage heat supply exhaust steam pipeline (37) with fourth stage back pressure thermal power plant unit (4), the exhaust steam condensation mouth of a river of fourth stage unit condenser (36) is connected together by the steam exhaust device hot well (39) of fourth stage heat supply exhaust steam condensing water conduit (39) with fourth stage back pressure thermal power plant unit (4), the delivery port (40) of third level unit condenser (26) is connected together with fourth stage unit condenser (36) by the inlet channel (41) of fourth stage unit condenser (36), the delivery port (42) of fourth stage unit condenser (36) is communicated with peak load calorifier (5) by the outlet pipeline (43) of fourth stage unit condenser (36), the delivery port of peak load calorifier (5) is connected with municipal heating systems recirculated water supply channel (45).
CN201520011643.6U 2015-01-08 2015-01-08 Air cooling unit exhaust steam waste heat plural serial stage heating system Active CN204404310U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520011643.6U CN204404310U (en) 2015-01-08 2015-01-08 Air cooling unit exhaust steam waste heat plural serial stage heating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520011643.6U CN204404310U (en) 2015-01-08 2015-01-08 Air cooling unit exhaust steam waste heat plural serial stage heating system

Publications (1)

Publication Number Publication Date
CN204404310U true CN204404310U (en) 2015-06-17

Family

ID=53428162

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520011643.6U Active CN204404310U (en) 2015-01-08 2015-01-08 Air cooling unit exhaust steam waste heat plural serial stage heating system

Country Status (1)

Country Link
CN (1) CN204404310U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107202356A (en) * 2017-06-19 2017-09-26 北京北方三合能源技术有限公司 A kind of exhaust heat stepped utilization heating system of fired power generating unit
CN107218093A (en) * 2017-06-14 2017-09-29 联合瑞升(北京)科技有限公司 Heating system and operation method are reclaimed in a kind of thermal power plant's exhaust steam
WO2019201281A1 (en) * 2018-04-19 2019-10-24 联合瑞升(北京)科技有限公司 Exhaust steam waste heat recovery heat supply system for air cooling unit of large-scale thermal power plant
CN113006895A (en) * 2021-04-01 2021-06-22 济南达能动力技术有限责任公司 Method and system for reducing station power consumption rate of power plant

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107218093A (en) * 2017-06-14 2017-09-29 联合瑞升(北京)科技有限公司 Heating system and operation method are reclaimed in a kind of thermal power plant's exhaust steam
CN107218093B (en) * 2017-06-14 2018-08-07 联合瑞升(北京)科技有限公司 A kind of thermal power plant's steam exhaust recycling heating system and operation method
CN107202356A (en) * 2017-06-19 2017-09-26 北京北方三合能源技术有限公司 A kind of exhaust heat stepped utilization heating system of fired power generating unit
WO2019201281A1 (en) * 2018-04-19 2019-10-24 联合瑞升(北京)科技有限公司 Exhaust steam waste heat recovery heat supply system for air cooling unit of large-scale thermal power plant
US11085334B2 (en) 2018-04-19 2021-08-10 Uni-Rising(Beijing) Technology Co., Ltd. Exhaust steam waste heat recovering and supplying system of air-cooling units in large thermal power plants
CN113006895A (en) * 2021-04-01 2021-06-22 济南达能动力技术有限责任公司 Method and system for reducing station power consumption rate of power plant
CN113006895B (en) * 2021-04-01 2022-02-15 济南达能动力技术有限责任公司 Method and system for reducing station power consumption rate of power plant

Similar Documents

Publication Publication Date Title
CN204404310U (en) Air cooling unit exhaust steam waste heat plural serial stage heating system
CN102220888B (en) Method and system for recovering circulating water residual heat of thermal power plants
CN204730303U (en) The heating system of the 12MW small cogeneration unit under a kind of underrun operating mode
CN104197397A (en) Energy-saving heat supply system for decreasing temperature of heating return water and recovering waste heat of thermal power plant
CN104121047A (en) Thermal power plant heat supply and steam extraction overbottom pressure utilization system with back pressure turbine
CN104832290A (en) Distributed type energy resource flue gas waste heat deep utilization system
CN204404312U (en) The heat network system of efficiency utilization steam power plant heating steam
CN104481611A (en) Dead steam waste heat recovery system based on large temperature difference heat exchange technology
CN203099962U (en) Circulating-water direct heating system of thermal power plant
CN104501275A (en) Stepped heating and supplying system sufficiently utilizing waste heat of power plant
CN204704011U (en) A kind of distributed energy fume afterheat deep exploitation system
CN204404317U (en) Wet type cooling unit high back pressure series connection compression type heat heat pump heating system
CN204373030U (en) Make full use of the step heating heating system of residual heat of electric power plant
CN204115055U (en) Reduce the energy-saving heating system of heat supply return water temperature and recovery steam power plant waste heat
CN203476412U (en) Novel efficient heating supply system based on NCB unit
CN108317504A (en) A kind of cogeneration of heat and power heat recovery technology
CN204827562U (en) Little steam turbine energy cascade utilization system of thermal power plant
CN201671670U (en) Condenser circulating water heating device for power plant
CN104406148B (en) Rectifying column air cooler waste heat recovery generating system
CN202883026U (en) Power station backheating type steam-driven condensate pump system
CN203488273U (en) Small-scale gas electrical generation waste heat utilization device
CN207674551U (en) A kind of cooling tower antifreezing system for the solidifying pumping back of the body heat supply of steam turbine
CN205156097U (en) Novel recirculated cooling water water supply system
CN204492908U (en) A kind of exhaust steam residual heat reclaiming system based on large temperature difference technology
CN202647719U (en) Heating network drain treatment system for subcritical wet cooling heat supply unit

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant