CN104481611A - Dead steam waste heat recovery system based on large temperature difference heat exchange technology - Google Patents

Dead steam waste heat recovery system based on large temperature difference heat exchange technology Download PDF

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Publication number
CN104481611A
CN104481611A CN201410831966.XA CN201410831966A CN104481611A CN 104481611 A CN104481611 A CN 104481611A CN 201410831966 A CN201410831966 A CN 201410831966A CN 104481611 A CN104481611 A CN 104481611A
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China
Prior art keywords
water
pump
heat
steam
temperature difference
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Pending
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CN201410831966.XA
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Chinese (zh)
Inventor
刘军
尤丽
朱蒙
胡永逵
郭占强
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Beijing Zhongke Huayu Energy Technology Development Co Ltd
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Beijing Zhongke Huayu Energy Technology Development Co Ltd
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Priority to CN201410831966.XA priority Critical patent/CN104481611A/en
Publication of CN104481611A publication Critical patent/CN104481611A/en
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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
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/14Combined heat and power generation [CHP]
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

Abstract

The invention relates to a dead steam waste heat recovery system based on a large temperature difference heat exchange technology, and belongs to the field of waste heat recovery in a power plant. The system consists of a steam turbine, a condenser, a condensate pump, a steam-water heat exchanger, a lithium bromide absorption heat pump, a primary net circulating water pump, a waste heat water circulating pump, a large temperature difference heat exchanger unit, a secondary net circulating water pump and connecting pipelines. According to the system, the temperature of return water in a primary net is reduced by utilizing the large temperature difference heat exchange technology, return water in a heat supply network is heated by directly utilizing dead steam under the precondition of not changing the exhaust steam pressure of the steam turbine, meanwhile steam extraction of the steam turbine is utilized for driving the lithium bromide absorption heat pump to recycle the remaining dead steam exhaust heat for carrying out secondary heating on the return water in the primary net, and thus a great deal of waste caused by the fact that heat passes through a cooling tower system is avoided.

Description

A kind of exhaust steam residual heat reclaiming system based on large temperature difference technology
Technical field
The invention belongs to residual heat of electric power plant and reclaim field, be related specifically to a kind of exhaust steam residual heat reclaiming system based on large temperature difference technology.
Background technique
In the main heating system in northern cities and towns, cogeneration of heat and power, because unit heating coal consumption is far below region boiler and all kinds of dispersion heating system, is the heat resource form that energy conversion efficiency generally acknowledged is at present the highest.At present, power plant heating system have two kinds of modes, the first utilizes the mode of the direct heating circulating water that draws gas of steam turbine, this kind of mode has the advantages that heating temperature is higher, supply backwater temperature difference large and heating service Area comparison is large, be applicable to large, medium and small sucking condensing turbine, adopt some the exhaust steam heat of condensation of this kind of mode to be lost in air eventually through cooling water; It two is adopt the mode of low vacuum heating, and this kind of mode is applicable to that a secondary net return water temperature is lower and the occasion that supply water temperature is not too high, heating service area is less, adopts this kind of mode to have the high advantage of the thermal efficiency.But above two kinds of modes have the shortcoming of oneself, mode one has a large amount of exhaust steam heats of condensation when operation and discharges into the atmosphere, and the supply water temperature of mode two can not be too high, and generally needs the exhaust steam pressure improving steam turbine, affects generated energy.
Summary of the invention
The object of the invention is the deficiency overcoming above two kinds of heat-supplying modes, a kind of exhaust steam residual heat reclaiming system based on large temperature difference technology is proposed, the feature that native system utilizes return water temperature low, the waste heat of the half of vapour condenser vapour condenser is directly reclaimed under the prerequisite not improving steam turbine exhaust pressure, second half of simultaneously vapour condenser, as the waste heat source of lithium bromide absorption type heat pump, carries out double heating to heat supply network backwater.Vapor-water heat exchanger heats as the third level, is delivered to large net after a secondary net backwater is heated to design temperature.Have under the prerequisite of equal heating load, the generated energy of steam turbine is more, and supply water temperature is higher.
The present invention proposes a kind of exhaust steam residual heat reclaiming system based on large temperature difference technology, it is characterized in that, this system is primarily of steam turbine, vapour condenser, condensate pump, vapor-water heat exchanger, lithium bromide absorption type heat pump, a secondary net circulating water pump, remaining hot water recycle pump, large temperature difference heat-exchange unit, secondary network circulating water pump and connecting tube composition; Its annexation is: the high pressure main steam inlet of steam turbine is connected with high temperature and high pressure steam pipeline, the exhaust steam outlet of steam turbine is connected with the exhaust steam entrance of vapour condenser, the water of condensation outlet of vapour condenser is connected with the entrance of condensate pump, and water of condensation delivery side of pump is connected with water of condensation main pipeline; The extraction opening of steam turbine is connected with the entrance of the steam inlet of vapor-water heat exchanger with the driving steam of lithium bromide absorption type heat pump respectively, and the water of condensation outlet of lithium bromide absorption heat pump exports with the water of condensation of vapor-water heat exchanger respectively and is connected with condensing water conduit; The hot water outlet of vapor-water heat exchanger is connected with the water supply line of the first side of other heat-exchange unit with the first side entrance of large temperature difference heat-exchange unit respectively; The first side water outlet of large temperature difference heat-exchange unit is connected with the first side outlet conduit of other large temperature difference heat-exchange unit with the entrance of a secondary net circulating water pump respectively, the outlet of one secondary net circulating water pump is connected with the cold side entrance of vapour condenser, the cold side outlet port of vapour condenser is connected with the heated side hot water inlet of lithium bromide absorption type heat pump, and the heated side hot water outlet of lithium bromide absorption type heat pump is connected with the hot water inlet of vapor-water heat exchanger; The remaining hot water entrance of lithium bromide absorption type heat pump is connected with remaining hot water circulation delivery side of pump, and the remaining hot water outlet of lithium bromide absorption type heat pump is connected with the cold side entrance of vapour condenser, and the cold side outlet of vapour condenser is connected with the entrance of waste heat circulation pump; Secondary network circulating water pump inlet side is connected with secondary network water return pipeline, and secondary network circulating water delivery side of pump is connected with the secondary network entrance of large temperature difference heat-exchange unit, and the secondary network outlet of large temperature difference heat-exchange unit is connected with water supply line.
Feature of the present invention and useful achievement:
The present invention is based on the exhaust steam residual heat reclaiming system of large temperature difference technology, large temperature difference technology is utilized to reduce the return water temperature of a secondary net, under the prerequisite not changing steam turbine exhaust pressure, directly utilize exhaust steam to heat heat supply network backwater, utilize drawing gas of steam turbine to drive lithium bromide absorption type heat pump to reclaim residue exhaust steam residual heat for carrying out secondary heating to a secondary net backwater simultaneously, thus avoid heat and caused a large amount of wastes by cooling tower systems.The present invention can reclaim the heat of condensation of the whole exhaust steam of steam turbine, avoids recirculating cooling water system to be wasted a large amount of heats and water resources by cooling tower, thus saves the energy, emissions reduction, improves the utilization ratio of primary energy, reduces the user cost of user.
Accompanying drawing explanation
A kind of exhaust steam residual heat reclaiming system structure based on large temperature difference technology of Fig. 1 and workflow schematic diagram.
Embodiment
The present invention propose a kind of exhaust steam residual heat reclaiming system Structure Figure based on large temperature difference technology and be described in detail as follows:
As shown in Figure 1, this system is primarily of steam turbine 1, vapour condenser 2, condensate pump 3, vapor-water heat exchanger 4, lithium bromide absorption type heat pump 5, secondary net circulating water pump 6, remaining hot water recycle pump 7, large temperature difference heat-exchange unit 8, secondary network circulating water pump 9 and connecting tube composition for structure of the present invention.Its annexation is:
The high pressure main steam inlet 11 of steam turbine 1 is connected with high temperature and high pressure steam pipeline a, the exhaust steam outlet 13 of steam turbine 1 is connected with the exhaust steam entrance 21 of vapour condenser 2, the water of condensation outlet 22 of vapour condenser 2 is connected with the entrance of condensate pump 3, and the outlet of condensate pump 3 is connected with water of condensation main pipeline b; The extraction opening 12 of steam turbine 1 is connected with the entrance 51 of the steam inlet 41 of vapor-water heat exchanger 4 with the driving steam of lithium bromide absorption type heat pump 5 respectively, and the water of condensation outlet 52 of lithium bromide absorption heat pump 5 exports 42 with the water of condensation of vapor-water heat exchanger 4 respectively and is connected with condensing water conduit e; The hot water outlet 44 of vapor-water heat exchanger 4 is connected with the water supply line d of the first side of other heat-exchange unit with the first side entrance 81 of large temperature difference heat-exchange unit 8 respectively; The first side water outlet 82 of large temperature difference heat-exchange unit 8 is connected with the first side outlet conduit c of other large temperature difference heat-exchange unit with the entrance of a secondary net circulating water pump 6 respectively, the outlet of one secondary net circulating water pump 6 is connected with the cold side entrance 23 of vapour condenser 2, the cold side outlet port 24 of vapour condenser 2 is connected with the heated side hot water inlet 53 of lithium bromide absorption type heat pump 5, and the heated side hot water outlet 54 of lithium bromide absorption type heat pump 5 is connected with the hot water inlet 43 of vapor-water heat exchanger 4; The remaining hot water entrance 55 of lithium bromide absorption type heat pump 5 is connected with the outlet of remaining hot water recycle pump 7, the remaining hot water outlet 56 of lithium bromide absorption type heat pump 5 is connected with the cold side entrance 25 of vapour condenser 2, and the cold side outlet 26 of vapour condenser 2 is connected with the entrance of waste heat circulation pump 7; Secondary network circulating water pump 9 inlet side is connected with secondary network water return pipeline f, and the outlet of secondary network circulating water pump 9 is connected with the secondary network entrance 83 of large temperature difference heat-exchange unit 8, and the secondary network outlet 84 of large temperature difference heat-exchange unit is connected with water supply line g.
The working principle of native system and effect: this technology mainly sets up large temperature difference heat-exchange unit, reduce return water temperature, thus directly reclaim the heat of condensation of exhaust steam on the basis of not improving gas turbine exhaust gas pressure.Also set up lithium bromide absorption type heat pump simultaneously, utilize heat pump techniques directly to reclaim second half exhaust steam residual heat of vapour condenser, finally utilize vapor-water heat exchanger to heat further hot net water, accomplished the cascade utilization of energy.This technology path is compared with rough vacuum heating technology, and one is to reduce exhaust pressure; Two is to improve supply water temperature.Meanwhile, the UTILIZATION OF VESIDUAL HEAT IN amount of exhaust steam and the generated energy of equipment are much larger than traditional extracted steam from turbine heating system.
The present invention utilizes large temperature difference technology to reduce a secondary net return water temperature, thus under the prerequisite not changing steam turbine exhaust pressure, directly utilize exhaust steam to heat a secondary net heat supply network backwater, utilize drawing gas of steam turbine to drive lithium bromide absorption type heat pump to reclaim residue exhaust steam residual heat for carrying out secondary heating to a secondary net backwater simultaneously, thus avoid heat and caused a large amount of wastes by cooling tower systems.
The embodiment of the equipment in the present invention all adopts matured product.
1, steam turbine: being the sucking condensing turbine group of maturation, is power plant's existing equipment, as C6-4.9/0.49;
2, vapour condenser: being the double-flow dividing wall type vapour condenser of maturation, is power plant's existing equipment, as heat exchange area 2000 ㎡ of vapour condenser;
3, condensate pump is the condensate pump of maturation, is power plant's existing equipment;
4, vapor-water heat exchanger is traditional spike steam-water heat exchanging equipment.According to heat exchange amount and heat exchange difference determination heat exchange area;
5, lithium bromide absorption type heat pump: be matured product, according to adding heat, the temperature of the out temperature of waste heat side and the import and export of heated side determines, as RHP20;
6, a circulation pump of heat-supply network, according to the flow of heat load and supply and return water temperature determination heat supply network, according to index circuit determination water lift of pump, according to the model of lift and flow determination water pump;
7, remaining hot water circulating water pump, according to the temperature difference determination remaining hot water quantity of circulating water of the import and export of waste heat load and vapour condenser, according to the water resistance determination water lift of pump of the remaining hot water circulatory system, according to the model of lift and flow determination water pump;
8, large temperature difference heat-exchange unit, supplies water according to heat exchange amount and heat supply network and the supply and return water temperature of return water temperature and secondary network determines the model of large temperature difference heat-exchange unit;
9, load side circulating water pump, according to the flow of the supply and return water temperature determination water pump of heat load and secondary network, according to index circuit determination lift, according to the model of lift and flow determination water pump.

Claims (1)

1. the exhaust steam residual heat reclaiming system based on large temperature difference technology, it is characterized in that, this system is primarily of steam turbine, vapour condenser, condensate pump, vapor-water heat exchanger, lithium bromide absorption type heat pump, a secondary net circulating water pump, remaining hot water recycle pump, large temperature difference heat-exchange unit, secondary network circulating water pump and connecting tube composition; Its annexation is: the high pressure main steam inlet of steam turbine is connected with high temperature and high pressure steam pipeline, the exhaust steam outlet of steam turbine is connected with the exhaust steam entrance of vapour condenser, the water of condensation outlet of vapour condenser is connected with the entrance of condensate pump, and water of condensation delivery side of pump is connected with water of condensation main pipeline; The extraction opening of steam turbine is connected with the entrance of the steam inlet of vapor-water heat exchanger with the driving steam of lithium bromide absorption type heat pump respectively, and the water of condensation outlet of lithium bromide absorption heat pump exports with the water of condensation of vapor-water heat exchanger respectively and is connected with condensing water conduit; The hot water outlet of vapor-water heat exchanger is connected with the water supply line of the first side of other heat-exchange unit with the first side entrance of large temperature difference heat-exchange unit respectively; The first side water outlet of large temperature difference heat-exchange unit is connected with the first side outlet conduit of other large temperature difference heat-exchange unit with the entrance of a secondary net circulating water pump respectively, the outlet of one secondary net circulating water pump is connected with the cold side entrance of vapour condenser, the cold side outlet port of vapour condenser is connected with the heated side hot water inlet of lithium bromide absorption type heat pump, and the heated side hot water outlet of lithium bromide absorption type heat pump is connected with the hot water inlet of vapor-water heat exchanger; The remaining hot water entrance of lithium bromide absorption type heat pump is connected with remaining hot water circulation delivery side of pump, and the remaining hot water outlet of lithium bromide absorption type heat pump is connected with the cold side entrance of vapour condenser, and the cold side outlet of vapour condenser is connected with the entrance of waste heat circulation pump; Secondary network circulating water pump inlet side is connected with secondary network water return pipeline, and secondary network circulating water delivery side of pump is connected with the secondary network entrance of large temperature difference heat-exchange unit, and the secondary network outlet of large temperature difference heat-exchange unit is connected with water supply line.
CN201410831966.XA 2014-12-26 2014-12-26 Dead steam waste heat recovery system based on large temperature difference heat exchange technology Pending CN104481611A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106402981A (en) * 2016-08-30 2017-02-15 洛阳双瑞特种装备有限公司 Large-temperature-difference waste heat recovery heat supply unit for electric drive heat pumps
CN107166480A (en) * 2017-06-08 2017-09-15 中广核工程有限公司 Nuclear power plant's heating plant heat-exchange system
CN107621000A (en) * 2017-09-06 2018-01-23 同方节能装备有限公司 A kind of big temperature difference heat-exchange unit
CN108870507A (en) * 2018-04-03 2018-11-23 大连葆光节能空调设备厂 A kind of big temperature-difference central heating system using double condensers

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101231004A (en) * 2008-02-28 2008-07-30 清华大学 Large temperature-difference central heating system
CN101619662A (en) * 2009-08-14 2010-01-06 清华大学 Method for recovering waste heat of thermal power plant and heating and supplying heat to hot water in a stepping way
JP4676284B2 (en) * 2005-08-30 2011-04-27 株式会社日立エンジニアリング・アンド・サービス Waste heat recovery equipment for steam turbine plant
CN102147123A (en) * 2010-02-10 2011-08-10 同方川崎空调设备有限公司 Waste heat recovery type heating system of initial station
CN103629857A (en) * 2013-12-04 2014-03-12 大连大学 Heat and power cogeneration centralized heat supply system based on heat pump
CN103673034A (en) * 2013-12-04 2014-03-26 大连葆光节能空调设备厂 Heat and power cogeneration central heating system based on heat pump
CN204492908U (en) * 2014-12-26 2015-07-22 北京中科华誉能源技术发展有限责任公司 A kind of exhaust steam residual heat reclaiming system based on large temperature difference technology

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4676284B2 (en) * 2005-08-30 2011-04-27 株式会社日立エンジニアリング・アンド・サービス Waste heat recovery equipment for steam turbine plant
CN101231004A (en) * 2008-02-28 2008-07-30 清华大学 Large temperature-difference central heating system
CN101619662A (en) * 2009-08-14 2010-01-06 清华大学 Method for recovering waste heat of thermal power plant and heating and supplying heat to hot water in a stepping way
CN102147123A (en) * 2010-02-10 2011-08-10 同方川崎空调设备有限公司 Waste heat recovery type heating system of initial station
CN103629857A (en) * 2013-12-04 2014-03-12 大连大学 Heat and power cogeneration centralized heat supply system based on heat pump
CN103673034A (en) * 2013-12-04 2014-03-26 大连葆光节能空调设备厂 Heat and power cogeneration central heating system based on heat pump
CN204492908U (en) * 2014-12-26 2015-07-22 北京中科华誉能源技术发展有限责任公司 A kind of exhaust steam residual heat reclaiming system based on large temperature difference technology

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106402981A (en) * 2016-08-30 2017-02-15 洛阳双瑞特种装备有限公司 Large-temperature-difference waste heat recovery heat supply unit for electric drive heat pumps
CN107166480A (en) * 2017-06-08 2017-09-15 中广核工程有限公司 Nuclear power plant's heating plant heat-exchange system
CN107621000A (en) * 2017-09-06 2018-01-23 同方节能装备有限公司 A kind of big temperature difference heat-exchange unit
CN108870507A (en) * 2018-04-03 2018-11-23 大连葆光节能空调设备厂 A kind of big temperature-difference central heating system using double condensers

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Application publication date: 20150401