CN203464249U - Condensed water heat regenerative system with absorption heat pump - Google Patents

Condensed water heat regenerative system with absorption heat pump Download PDF

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Publication number
CN203464249U
CN203464249U CN201320573491.XU CN201320573491U CN203464249U CN 203464249 U CN203464249 U CN 203464249U CN 201320573491 U CN201320573491 U CN 201320573491U CN 203464249 U CN203464249 U CN 203464249U
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China
Prior art keywords
heat pump
regenerative
steam turbine
heat
pressure heater
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CN201320573491.XU
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Inventor
张晨
薛英喜
郝志鹏
郑殿锋
姜晓霞
杨晓锋
王铮
陈丽君
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Auxiliary Equipment Engineering Co Ltd Harbin Steam Turbine Factory
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Auxiliary Equipment Engineering Co Ltd Harbin Steam Turbine Factory
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y02A30/274Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine

Abstract

The utility model discloses a condensation water heat regenerative system with an absorption heat pump, relates to a condensation water heat regenerative system, and aims to solve the problems that the unit waste heat utilization rate of a conventional condensation water heat regenerative system is low, and the manner that circulating cooling water recycled by a heat pump is used for heat supply in winter is unreasonable. The condensation water heat regenerative system comprises a boiler (1), a steam turbine (2), a power generator (3), a deaerator (4), a condenser (7), a lower-pressure heater (8) and a high-pressure heater (9), wherein the boiler (1) and the steam turbine (2) are arranged in sequence from the left to right; the power generator (3) and the condenser (7) are respectively connected with the steam turbine (2). The condensation water heat regenerative system further comprises the absorption heat pump (5), wherein the absorption heat pump (5) are respectively connected with the steam turbine (2) and the condenser (7); the absorption heat pump (5), the lower-pressure heater (8), the deaerator (4), the high-pressure heater (9) and the boiler (1) are sequentially connected in series. The condensation water heat regenerative system is used in a thermal power plant.

Description

A kind of condensate water heat regenerative system with absorption heat pump
Technical field
The utility model relates to a kind of condensate water heat regenerative system, is specifically related to a kind of condensate water heat regenerative system with absorption heat pump.
Background technology
The recirculated water of steam power plant belongs to low-grade heat source, directly utilization rate is low, but water quality is good, the water yield and temperature are also more stable, meet the requirement as absorption heat pump low-temperature heat source, Circulating Cooling Water of Power Plant waste heat is recycled by absorption heat pump, can realize the efficient utilization of the energy and recycle, greatly save the energy and reduce disposal of pollutants, meeting the fundamental policy that national energy-saving reduces discharging.The entrained heat of recirculated cooling water that utilizes heat pump to reclaim, be mainly used in winter heating heat supply, restriction due to heat pump techniques, heat pump leaving water temperature is not too high, can not meet the requirement of the required heating medium parameter of extensive central heating system, can only be near power station user's " low temperature, large flow " heating in winter.The non-heat carrying for warm season recirculated water also can be discharged into the atmosphere by cooling tower, serious waste unit waste heat.Therefore from economy, consider, for this mode of heat supply in winter unreasonable.
In sum, existing condensate water heat regenerative system exists unit utilization rate of waste heat low, the irrational problem of recirculated cooling water winter heating heat supply that heat pump reclaims.
Utility model content
The purpose of this utility model is to exist unit utilization rate of waste heat low in order to solve existing condensate water heat regenerative system, the irrational problem of recirculated cooling water winter heating heat supply that heat pump reclaims.And then provide a kind of condensate water heat regenerative system with absorption heat pump.
The technical solution of the utility model is: a kind of condensate water heat regenerative system with absorption heat pump comprises boiler, steam turbine, generator, oxygen-eliminating device, condenser, low-pressure heater and high-pressure heater, boiler and steam turbine set gradually from left to right, generator is connected with steam turbine respectively with condenser, between oxygen-eliminating device and steam turbine, by pipeline, be connected, described condensate water heat regenerative system also comprises absorption heat pump, absorption heat pump is connected with condenser with steam turbine respectively, absorption heat pump, low-pressure heater, oxygen-eliminating device, series connection successively between high-pressure heater and boiler.
The utility model compared with prior art has following effect:
1. the utility model has effectively utilized the parameter in existing condensate water heat regenerative system, the recirculated cooling water effective temperature of unit is risen to 90 ℃, by adopting absorption heat pump to replace No. 7, No. 8 low-pressure heaters in existing condensate water heat regenerative system, utilize circulating cooling water afterheat condenser condensing water temperature out to be risen to the parameter entering before No. 6 low heaters, reached and utilized the waste heat of recirculated cooling water to improve whole unit efficiency, effectively solved existing condensate water heat regenerative system and had the problem that unit utilization rate of waste heat is low.
The utility model long operational time, be not subject to the restriction in season, system is less, initial stage less investment, saves the energy.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
The specific embodiment
The specific embodiment one: present embodiment is described in conjunction with Fig. 1, a kind of condensate water heat regenerative system with absorption heat pump of present embodiment comprises boiler 1, steam turbine 2, generator 3, oxygen-eliminating device 4, condenser 7, low-pressure heater 8 and high-pressure heater 9, boiler 1 and steam turbine 2 set gradually from left to right, generator 3 is connected with steam turbine 2 respectively with condenser 7, between oxygen-eliminating device 4 and steam turbine 2, by pipeline, be connected, described condensate water heat regenerative system also comprises absorption heat pump 5, absorption heat pump 5 is connected with condenser 7 with steam turbine 2 respectively, absorption heat pump 5, low-pressure heater 8, oxygen-eliminating device 4, series connection successively between high-pressure heater 9 and boiler 1.
Present embodiment is that steam turbine 2 steam discharge is out cooled to condensate water in 7 li, condenser, by condensate pump, condensate water is beaten to absorption heat pump 5, heat, from absorption heat pump 5, pass through successively low-pressure heater 8, oxygen-eliminating device 4 out, various water heats in oxygen-eliminating device 4, become feedwater after deoxygenation, through removing high-pressure heater 9 after feed pump, after high-pressure heater 9, get back to boiler 1.
The specific embodiment two: in conjunction with Fig. 1, present embodiment is described, the condensate water heat regenerative system of present embodiment also comprises cooling tower 6, cooling tower 6 is connected with absorption heat pump 5 with condenser 7 respectively.So arranging, is the part circulating cooling water cooling that can not participate in heat pump cycle of being convenient in condensate water heat regenerative system, converges afterwards with the recirculated cooling water through absorption heat pump 5, together enters condenser 7, the steam discharge of cooling steam turbine 2.Other composition and annexation are identical with the specific embodiment one.
The course of work of the present utility model is:
Utilize steam turbine intermediate extraction as driving heat source, recirculated cooling water enters absorption heat pump 5 heat releases as low-temperature heat source, condensate water enters absorption heat pump 5 heat absorptions, and the temperature that reaches No. 7 low-pressure heater outlets is discharged absorption heat pump 5, and at this moment condensate water is heated to 85 ℃.Condensate water after heating is successively by getting back in boiler after low-pressure heater 8, oxygen-eliminating device 4 and high-pressure heater 9.The steam discharge that continues to get back to cooling steam turbine 2 in condenser after recirculated cooling water heat release, becomes condensate water after driving heat source is cooling, mixes with the condensed water of condenser 7 outlets, enters in absorption heat pump 5 and be heated after condensate pump boosts.
The utility model makes the waste heat of the recirculated cooling water of unit all recycle as far as possible, and not recoverable part recirculated water still enters cooling tower 6 and carries out cooling.

Claims (2)

1. the condensate water heat regenerative system with absorption heat pump, it comprises boiler (1), steam turbine (2), generator (3), oxygen-eliminating device (4), condenser (7), low-pressure heater (8) and high-pressure heater (9), boiler (1) and steam turbine (2) set gradually from left to right, generator (3) is connected with steam turbine (2) respectively with condenser (7), between oxygen-eliminating device (4) and steam turbine (2), by pipeline, be connected, it is characterized in that: described condensate water heat regenerative system also comprises absorption heat pump (5), absorption heat pump (5) is connected with condenser (7) with steam turbine (2) respectively, absorption heat pump (5), low-pressure heater (8), oxygen-eliminating device (4), series connection successively between high-pressure heater (9) and boiler (1).
2. a kind of condensate water heat regenerative system with absorption heat pump according to claim 1, is characterized in that: described condensate water heat regenerative system also comprises cooling tower (6), and cooling tower (6) is connected with absorption heat pump (5) with condenser (7) respectively.
CN201320573491.XU 2013-09-16 2013-09-16 Condensed water heat regenerative system with absorption heat pump Active CN203464249U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320573491.XU CN203464249U (en) 2013-09-16 2013-09-16 Condensed water heat regenerative system with absorption heat pump

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Application Number Priority Date Filing Date Title
CN201320573491.XU CN203464249U (en) 2013-09-16 2013-09-16 Condensed water heat regenerative system with absorption heat pump

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104265390A (en) * 2014-10-22 2015-01-07 烟台荏原空调设备有限公司 Double-working-medium circulation power generation system with waste heat recycling function
CN104500160A (en) * 2014-12-26 2015-04-08 北京中科华誉能源技术发展有限责任公司 Dead steam afterheat recycling system based on absorptive heat pump technology
CN104533552A (en) * 2014-12-31 2015-04-22 常熟市第二热电有限公司 Thermal power plant circulating water waste heat recycling method
CN106439777A (en) * 2016-08-31 2017-02-22 浙江浙能节能科技有限公司 Water replenishing and preheating system for back-pressure steam turbine
CN109441577A (en) * 2018-09-30 2019-03-08 国网天津市电力公司电力科学研究院 Absorption heat pump cogeneration units recirculated cooling water tower operation method above freezing

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104265390A (en) * 2014-10-22 2015-01-07 烟台荏原空调设备有限公司 Double-working-medium circulation power generation system with waste heat recycling function
CN104265390B (en) * 2014-10-22 2016-02-24 烟台荏原空调设备有限公司 A kind of double-work medium cycle generating system possessing waste heat recovery function
CN104500160A (en) * 2014-12-26 2015-04-08 北京中科华誉能源技术发展有限责任公司 Dead steam afterheat recycling system based on absorptive heat pump technology
CN104533552A (en) * 2014-12-31 2015-04-22 常熟市第二热电有限公司 Thermal power plant circulating water waste heat recycling method
CN106439777A (en) * 2016-08-31 2017-02-22 浙江浙能节能科技有限公司 Water replenishing and preheating system for back-pressure steam turbine
CN106439777B (en) * 2016-08-31 2018-08-14 浙江浙能节能科技有限公司 A kind of back pressure turbine moisturizing preheating system
CN109441577A (en) * 2018-09-30 2019-03-08 国网天津市电力公司电力科学研究院 Absorption heat pump cogeneration units recirculated cooling water tower operation method above freezing

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