CN103542445A - System for utilizing absorption heat pump to recycle waste heat of circulating water of thermal power plant - Google Patents

System for utilizing absorption heat pump to recycle waste heat of circulating water of thermal power plant Download PDF

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Publication number
CN103542445A
CN103542445A CN201210248849.1A CN201210248849A CN103542445A CN 103542445 A CN103542445 A CN 103542445A CN 201210248849 A CN201210248849 A CN 201210248849A CN 103542445 A CN103542445 A CN 103542445A
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China
Prior art keywords
water
heat
heat pump
heat exchanger
power plant
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Pending
Application number
CN201210248849.1A
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Chinese (zh)
Inventor
姜衍更
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Qingdao Daneng Environmental Protection Equipment Inc Co
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Qingdao Daneng Environmental Protection Equipment Inc Co
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Application filed by Qingdao Daneng Environmental Protection Equipment Inc Co filed Critical Qingdao Daneng Environmental Protection Equipment Inc Co
Priority to CN201210248849.1A priority Critical patent/CN103542445A/en
Publication of CN103542445A publication Critical patent/CN103542445A/en
Pending legal-status Critical Current

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Abstract

A system for utilizing an absorption heat pump to recycle waste heat of circulating water of a thermal power plant comprises a water-water heat exchanger, a steam-water heat exchanger, the absorption heat pump and a condenser. The heat supply end of the water-water heat exchanger is connected to a heating-receiving user through a pipeline, and the heating end of the water-water heat exchanger is connected with the steam-water heat exchanger and the absorption heat pump through pipelines. The steam-water heat exchanger is connected with the absorption heat pump and a steam turbine through pipelines, and the absorption heat pump is connected with the steam turbine and the condenser through pipelines. According to the system for utilizing the absorption heat pump to recycle waste heat of circulating water of the thermal power plant, waste heat is utilized, and the purposes of saving energy and water and achieving environment friendliness are achieved. The system can be widely applied to industries of combined heat and power generation, petroleum and petrochemical, rubber, steel, polycrystalline silicon and glassmaking.

Description

Adopt sorption type heat pump to reclaim heat-engine plant circulating water waste heat system
Technical field the present invention relates to a kind of employing sorption type heat pump and reclaims heat-engine plant circulating water waste heat system, can be widely used in the industries such as cogeneration of heat and power, petroleum and petrochemical industry, rubber, iron and steel, polysilicon, glass manufacture.
Background technology is current, and the waste heat losses of modern large thermal power plant recirculated water generally surpasses 50%, and power station unit capacity is larger, and recirculated water waste heat losses is larger.Nuclear power generating sets quantity of circulating water is 1.2~1.5 times of fired power generating unit, and waste heat can be more.This part used heat, if be discharged in atmosphere by cooling tower, can cause air local temperature rise; If cooling by river, can change the indexs such as water temperature, dissolved oxygen in local waters, there is eutrophication phenomenon, affect the growth of algae, fish biology, formation thermal pollution.From the second law of thermodynamics, this huge thermal loss is that heat engine production process is inevitable.Therefore, only have by other approach and be used, to part or all of recovery, could improve heat engine integrated heat efficiency, reduce power plant's coal consumption, reduce the thermal pollution to environment simultaneously.
The low-temperature circulating water of plant condenser has the advantages that gross energy is many, grade is low and the high efficiente callback of concentrated, applicable utilization heat pump techniques utilizes, the shared power plant soot heat ratio of circulating cooling water afterheat amount is very high, reclaims this part heat energy significant undoubtedly for saving the energy.Can say, circulating cooling water of power plant UTILIZATION OF VESIDUAL HEAT IN problem is an important content of building in " Circular Society Construction " strategic objective, and it is related to the problems such as energy-conservation, comprehensive utilization of resources and ecological environmental protection.But, at present, the domestic power plant that carries out UTILIZATION OF VESIDUAL HEAT IN seldom ,Jin Zhan thermal power plant sum 16%.Wherein, it is aquaculture that 87% power plant mainly utilizes mode, and its utilization is few, and efficiency is very low, and the waste of heat-engine plant circulating water used heat is serious.
Summary of the invention the object of the present invention is to provide the employing sorption type heat pump of a kind of UTILIZATION OF VESIDUAL HEAT IN, energy-conserving and environment-protective, water saving to reclaim heat-engine plant circulating water waste heat system.
In order to achieve the above object, the present invention adopts sorption type heat pump to reclaim heat-engine plant circulating water waste heat system, comprises water water-to-water heat exchanger, vapor-water heat exchanger, absorption heat pump, condenser; Said water water-to-water heat exchanger, its heat supply end is connected with heating user by pipeline, and it is adopted hot junction and is connected with vapor-water heat exchanger, absorption heat pump respectively by pipeline; Said vapor-water heat exchanger, is connected with absorption heat pump, steam turbine respectively by pipeline; Described absorption heat pump is connected with steam turbine, condenser respectively by pipeline.
The present invention adopts sorption type heat pump to reclaim heat-engine plant circulating water waste heat system, and absorption heat pump reclaims circulating water afterheat, can realize the grade coupling of heating energy, reaches object energy-conservation, water saving.
The present invention adopts sorption type heat pump to reclaim heat-engine plant circulating water waste heat system, by the cascade utilization of heating steam energy, realizes the Proper Match of supplying with energy grade and customer requirements, reduces available energy loss.
The present invention adopts sorption type heat pump to reclaim heat-engine plant circulating water waste heat system, adopts sorption type heat pump to reclaim heat-engine plant circulating water used heat technology, have energy-saving and environmental protection double effects, and unit load is larger, and corresponding energy-saving effect is more remarkable.300MW~1000MW unit being carried out to energy saving technical reconstruction, can improve the thermic load utilization rate ,Jiang power plant thermoelectrical efficiency of power plant and bring up to more than 80% after transformation, is the effective way that power plant for energy conservation reduces discharging, increases the benefit.Single unit coal consumption decline 41~70g/kWh, single unit is saved ten thousand tons/year of standard coal 7.5~45.5, by producing 100 cover products per year, calculate, year amount of energy saving is 750~4,550 ten thousand tons of standard coals, energy-saving potential is huge, the economy that can promote power plant's operation obtains good income simultaneously, and economic and social benefit is remarkable.
The present invention adopts sorption type heat pump to reclaim heat-engine plant circulating water waste heat system, adopt absorption heat pump, can save in a large number coacervation process steam and circulating cooling water consumption, reduce the environmental pollution that coacervation process discharge used heat, waste gas cause, effects of energy conservation and environmental protection is obvious.
The present invention adopts sorption type heat pump to reclaim heat-engine plant circulating water waste heat system; reduce waste heat discharge; improve the ecological environment; waste heat recovery simultaneously makes again power plant for energy conservation put forward effect; realize the circular economy concept of waste thermal energy " minimizing, recycling, resource " and fuel " resource reutilization "; meet the energy policy that China " adheres to developing with saving and lays equal stress on, saving is put in the first place ", also meet blue print of fundamental state policy and " energy-saving and emission-reduction " strategy of " adhering to economizing on resources and protection of the environment ".With reasonable, efficient reuse approach, realize the economy of resources of circulating cooling water of power plant, advance environmental protection clean electric power to produce, effects of energy saving and emission reduction is obvious.After the project implementation, can form rapidly energy-conservation, water saving ability significantly, improve the level of resources utilization and reduce the effect of pollutant emission.
In sum, the present invention adopts sorption type heat pump to reclaim heat-engine plant circulating water waste heat system, UTILIZATION OF VESIDUAL HEAT IN, energy-conserving and environment-protective, water saving.
Accompanying drawing explanation is further described the present invention below in conjunction with accompanying drawing and embodiment.
Fig. 1 is structural representation of the present invention.
The specific embodiment is in Fig. 1, and the present invention adopts sorption type heat pump to reclaim heat-engine plant circulating water waste heat system, comprises water water-to-water heat exchanger 1, vapor-water heat exchanger 2, absorption heat pump 3, condenser 4; Said water water-to-water heat exchanger, its heat supply end is connected with heating user by pipeline, and it is adopted hot junction and is connected with vapor-water heat exchanger, absorption heat pump respectively by pipeline; Said vapor-water heat exchanger, is connected with absorption heat pump, steam turbine 5 respectively by pipeline; Described absorption heat pump is connected with steam turbine, condenser respectively by pipeline.

Claims (1)

1. adopt sorption type heat pump to reclaim a heat-engine plant circulating water waste heat system, it is characterized in that, comprise water water-to-water heat exchanger, vapor-water heat exchanger, absorption heat pump, condenser; Said water water-to-water heat exchanger, its heat supply end is connected with heating user by pipeline, and it is adopted hot junction and is connected with vapor-water heat exchanger, absorption heat pump respectively by pipeline; Said vapor-water heat exchanger, is connected with absorption heat pump, steam turbine respectively by pipeline; Described absorption heat pump is connected with steam turbine, condenser respectively by pipeline.
CN201210248849.1A 2012-07-11 2012-07-11 System for utilizing absorption heat pump to recycle waste heat of circulating water of thermal power plant Pending CN103542445A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210248849.1A CN103542445A (en) 2012-07-11 2012-07-11 System for utilizing absorption heat pump to recycle waste heat of circulating water of thermal power plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210248849.1A CN103542445A (en) 2012-07-11 2012-07-11 System for utilizing absorption heat pump to recycle waste heat of circulating water of thermal power plant

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CN103542445A true CN103542445A (en) 2014-01-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110906348A (en) * 2019-10-30 2020-03-24 鞍钢股份有限公司 System and method for comprehensively utilizing low-temperature flue gas waste heat of color coating incinerator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2455579A (en) * 2007-12-13 2009-06-17 Martin Perrin Heat pump comprising an inverter drive compressor
CN202007693U (en) * 2011-02-17 2011-10-12 华电电力科学研究院 Recovery device for low-temperature waste heat in power plant
CN202195529U (en) * 2011-05-13 2012-04-18 陈喜报 Power plant waste heat utilization heating system combined technological device
CN202747462U (en) * 2012-07-11 2013-02-20 青岛达能环保设备股份有限公司 Device for recovering waste circulating water heat of thermal power plant by using absorption heat pump
CN102997311A (en) * 2012-12-25 2013-03-27 浙江工商大学 Power plant condensing heat recovery heat supply system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2455579A (en) * 2007-12-13 2009-06-17 Martin Perrin Heat pump comprising an inverter drive compressor
CN202007693U (en) * 2011-02-17 2011-10-12 华电电力科学研究院 Recovery device for low-temperature waste heat in power plant
CN202195529U (en) * 2011-05-13 2012-04-18 陈喜报 Power plant waste heat utilization heating system combined technological device
CN202747462U (en) * 2012-07-11 2013-02-20 青岛达能环保设备股份有限公司 Device for recovering waste circulating water heat of thermal power plant by using absorption heat pump
CN102997311A (en) * 2012-12-25 2013-03-27 浙江工商大学 Power plant condensing heat recovery heat supply system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110906348A (en) * 2019-10-30 2020-03-24 鞍钢股份有限公司 System and method for comprehensively utilizing low-temperature flue gas waste heat of color coating incinerator

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Application publication date: 20140129

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