CN202182507U - Thermal power plant recovery absorption heat pump waste heat steam-water type heat supply system - Google Patents

Thermal power plant recovery absorption heat pump waste heat steam-water type heat supply system Download PDF

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Publication number
CN202182507U
CN202182507U CN 201120268710 CN201120268710U CN202182507U CN 202182507 U CN202182507 U CN 202182507U CN 201120268710 CN201120268710 CN 201120268710 CN 201120268710 U CN201120268710 U CN 201120268710U CN 202182507 U CN202182507 U CN 202182507U
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China
Prior art keywords
heat pump
absorption heat
water
power plant
cooled condenser
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Withdrawn - After Issue
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CN 201120268710
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Chinese (zh)
Inventor
江荣方
毛洪财
蔡小荣
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Shuangliang Eco Energy Systems Co Ltd
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Shuangliang Eco Energy Systems Co Ltd
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Priority to CN 201120268710 priority Critical patent/CN202182507U/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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/12Hot water central heating systems using heat pumps

Abstract

The utility model relates to a thermal power plant recovery absorption heat pump waste heat steam-water type heat supply system, which comprises an exhausting-condensation steam turbine (1), a steam turbine extraction tube (3), a first water-cooled condenser (5), a second water-cooled condenser (6), subcoolers (7), a steam-water heat exchanger (9) and absorption heat pumps (XR1...n). The thermal power plant recovery absorption heat pump waste heat steam-water type heat supply system comprises n absorption heat pumps. Heat-net return water enters a thermal power plant and then flows in parallel into the subcoolers (7) of the absorption heat pumps (XR1...n). Then the water enters the absorber of the first absorption heat pumps (XR1) through the second water-cooled condenser (6) so as to connect all the absorption heat pumps (XR1...n) in series. After the water flows out of the absorber of the n absorption heat pump (XRn), the water flows into the condenser of the n absorption heat pump (XRn). Then the water flows into the condensers of all the absorption heat pumps (XRn...1) in series and is sent out directly or after being heated. Due to the adoption of the heat supply system, the condensation waste heat of more thermal power plants can be recovered and the operating efficiency of heat pumps is increased. Meanwhile, the operation of the heat net system is more reliable.

Description

Steam power plant reclaims absorption heat pump waste heat carbonated drink formula heating system
Technical field
The utility model relates to a kind of cogeneration heating system, is applicable to that the exhaust steam of cogeneration power plant steam turbine is more energy-conservation, utilizes safely and reliably, and heat network system more utilizes condensation waste heat.
Background technology
Along with the shortage of the energy and the requirement of energy-saving and emission-reduction improve day by day, the comprehensive utilization technique of the energy is in continuous lifting.Urban planning cogeneration in the north carries out central heating, to substitute original independent boiler central heating, realizes the requirement of energy-saving and emission-reduction.Make full use of steam power plant's used heat, to improve the heat capacity of steam power plant, realize energy-saving and emission-reduction better, guarantee the safe and reliable operation of steam power plant and heat supply network simultaneously again, various new flow processs require study.Realize the more turbine discharge used heat that reclaims in the power plant, the most important condition is that adopting on this basis with the electricity is the source pump of power, or is the absorption type heat pump assembly of power with the heat supply network high-temperature water with the secondary net return water temperature reduction of hot user side.Heat supply network backwater through power plant is confessed carries out refrigeration cool-down, supplies the secondary net to use again as the waste heat source of heat pump, makes the heat supply network return water temperature reduce back telegram in reply factory.Power plant heat supply network backwater is introduced into former plant condenser after getting into power plant, with electric power plant circulating water be blended in heat up in the condenser after, get into absorption heat pump again, see off after in heat pump, heating up.In this system, the temperature that recirculated water goes out heat pump is the keys of heat supply network in many recovery of whole heating season condensation heat, in same outlet temperature, can reclaim more condensation waste heat, and become the another difficult problem of steam power plant's central heating technology with high-grade drawing gas less.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned deficiency, and a kind of condensation waste heat of realizing reclaiming more steam power plants is provided, and the operational efficiency of raising heat pump and the heat network system more steam power plant of reliability service reclaim absorption heat pump waste heat carbonated drink formula heating system.
The purpose of the utility model is achieved in that a kind of steam power plant reclaims absorption heat pump waste heat carbonated drink formula heating system; Comprise sucking condensing turbine, extracted steam from turbine pipe, first water-cooled condenser, vapor-water heat exchanger and absorption heat pump; Said absorption heat pump has the n platform, and n is >=2 natural number.High steam is extracted the thermal source of part steam as absorption heat pump and vapor-water heat exchanger out in sucking condensing turbine work done generating back.Exhaust steam in steam turbine condenses into water by condenser, and condensation waste heat is recycled.Be characterized in: described absorption heat pump has additional subcooler, in steam power plant, increases by one second water-cooled condenser and the former first water-cooled condenser parallel running.The heat supply network backwater gets into the parallelly connected subcooler that gets into each absorption heat pump after the steam power plant; Outflow gathers the back and gets into second water-cooled condenser; Be introduced into the absorber of first absorption heat pump after heating up once more, get into the absorber of second absorption heat pump again ... Be connected in series successively, until the absorber that gets into n platform absorption heat pump; Go out the condenser that gets into this n platform absorption heat pump behind the absorber of n platform absorption heat pump again; Then from n-1, n-2 ... Be connected in series successively, from the condenser of first absorption heat pump, flow out at last, directly or again behind vapor-water heat exchanger, see off.The cooling circulating water parallel connection or the series connection of said first water-cooled condenser get into the evaporimeter of absorption heat pump and the cooling system of steam power plant.The cooling system of steam power plant can be that air and this first water-cooled condenser go out water direct heat-exchange, also can be that the air and the first water-cooled condenser water outlet indirect exchange enter atmosphere with heat.
The utility model steam power plant reclaims absorption heat pump waste heat carbonated drink formula heating system; The cooling circulating water of said first water-cooled condenser go out be divided into behind said first water-cooled condenser two the tunnel: the one tunnel be introduced into n platform absorption heat pump evaporimeter; Return successively then ... Get into the evaporimeter of second, first absorption heat pump, from the evaporimeter of first absorption heat pump, go out at last, return first water-cooled condenser; Another road gets into the cooling system of steam power plant.
The utility model steam power plant reclaims absorption heat pump waste heat carbonated drink formula heating system; The cooling circulating water of said first water-cooled condenser goes out the evaporimeter that is introduced into n platform absorption heat pump behind said first water-cooled condenser; Return successively then ... Get into the evaporimeter of second, first absorption heat pump, from the evaporimeter of first absorption heat pump, go out at last, and then get into the cooling system of steam power plant.
The utility model steam power plant reclaims absorption heat pump waste heat carbonated drink formula heating system; The subcooler of said each absorption heat pump is merged into a subcooler; The water as refrigerant pipeline parallel connection of each absorption heat pump inserts the subcooler after this merging, and the heat supply network backwater gets into second water-cooled condenser after going out the subcooler after this merging.
The utility model steam power plant reclaims absorption heat pump waste heat carbonated drink formula heating system, and the cooling system of said steam power plant is cooling tower, air cooling device or a device for cooling.
The utility model steam power plant reclaims absorption heat pump waste heat carbonated drink formula heating system, and described absorption heat pump is a separate unit multisection type absorption heat pump.
This steam power plant reclaims absorption heat pump waste heat carbonated drink formula heating system and also is applicable to an air cooling power plant and a cold power plant.
The beneficial effect of the utility model is:
Absorption heat pump in steam power plant has increased when subcooler and water-cooled condenser supply heat supply in winter to do heat supply season and has moved.Heat supply network recirculated water and power plant's cool cycles water separation isolated operation.Guaranteed the water quality of hot net water, guaranteed that all kinds of heat transmission equipments can safe and reliable energy-efficient operation.And because cooling circulating water and condensing direct heat transfer, compare with employing cellular-type heat-exchange system and can reclaim used heat more.Adopt heat supply network recirculated water directly to reclaim the COP value that the heat pump waste heat has more effectively improved heat pump.The working steam of heat pump will be practiced thrift more than 8% than original system.Because heat pump has been used high-grade energy less in reclaiming steam power plant's condensation waste heat process; So compare with former heat pump; Under the situation that reclaims same condensation waste heat; The temperature that goes out heat pump is lower than originally, can guarantee that so more heat supply network reclaims condenser heat and realizes maximization when heating demand descends, and is utilizing more exhaust steam in steam turbine to be used for heating in whole heating season.On the other hand, owing to reclaim same condensation heat, the circulating water temperature that goes out heat pump is low, under same outlet temperature situation, and the recyclable more condensation waste heat of heat pump.Through heat supply network recirculated water and cooling circulating water corresponding series flow in absorber, condenser and the evaporimeter of each heat pump, make the performance of heat pump obtain better optimize.The volume of heat pump, weight indicator can descend greatly, and manufacturing cost can descend simultaneously.On the other hand, because the performance optimization of heat pump, each item economic technology economic indicator of steam power plant is further enhanced.
Description of drawings
The heat supply network backwater that Fig. 1 (a) relates to for the utility model directly advances heat pump subcooler and cooling circulating water parallel connection sketch map.
The heat supply network backwater that Fig. 1 (b) relates to for the utility model directly advances heat pump subcooler and cooling circulating water series connection sketch map.
Reference numeral among the figure:
Sucking condensing turbine 1, generator 2, extracted steam from turbine pipe 3, coagulate water pipe 4, first water-cooled condenser 5 (former), second water-cooled condenser 6 (increasing newly), subcooler 7, cool cycles water discharge pipe 8, vapor-water heat exchanger 9, heat supply network return branch 10, cooling tower 11, air cooling device 12, a device for cooling 13, absorption heat pump XR1 ... N.
Heat supply network backwater A1, heat supply network water supply A2, high steam B, exhaust steam in steam turbine C, coagulate water and go out D.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further:
Embodiment 1:
Shown in Fig. 1 (a), the heat supply network backwater that Fig. 1 (a) relates to for the utility model directly advances absorption heat pump subcooler and cooling circulating water parallel connection sketch map.Can find out by Fig. 1 (a), the utility model steam power plant reclaim absorption heat pump waste heat carbonated drink formula heating system by sucking condensing turbine 1, generator 2, extracted steam from turbine pipe 3, coagulate water pipe 4, first water-cooled condenser 5, second water-cooled condenser 6, subcooler 7, cool cycles water discharge pipe 8, vapor-water heat exchanger 9, heat supply network return branch 10, cooling tower 11, air cooling device 12, a device for cooling 13, absorption heat pump XR1 ... Compositions such as n and water pump, valve and connecting line.Said absorption heat pump XR1 ... N has the n platform, and n is >=2 natural number.Parallel connection got into each absorption heat pump XR1 after heat supply network return branch 10 got into power plant ... The subcooler 7 of n; Outflow gathers the back and gets into second water-cooled condenser 6, and the back of heating up once more gets into the absorber of first absorption heat pump XR1, goes out the absorber that gets into second absorption heat pump XR2 behind the absorber of first absorption heat pump XR1; All the other and the like;, go out the absorber that gets into n platform absorption heat pump XRn behind the absorber of n-1 platform absorption heat pump XR2 again, get into the condenser of n platform absorption heat pump XRn again; Get into the condenser of n-1 platform absorption heat pump XR2 then; All the other and the like ..., after the condenser of first absorption heat pump XR1 go out.Just get into the condenser of absorption heat pump XR2 after the minimum absorber from absorption heat pump XR2 of this one road hot net water goes out, go out the condenser that returns absorption heat pump XR1 behind the condenser of absorption heat pump XR2, the condenser from absorption heat pump XR1 goes out at last.This road heat supply network backwater is heated through subcooler 7, second water-cooled condenser 6; Again through first absorption heat pump XR1, second absorption heat pump XR2 ... The absorber of n platform absorption heat pump XRn add gentle n platform absorption heat pump XRn ... The condenser of second absorption heat pump XR2, first absorption heat pump XR1 is heated; The heat supply network return water temperature is raise, directly or again after vapor-water heat exchanger 9 heats up, see off.The heat exchange in subcooler 7 of this one road heat supply network backwater heats up, and has taken away the heat of absorption heat pump condensation water as refrigerant, and the heat of the water as refrigerant that the heat pump generator produces has obtained effective utilization.Because water as refrigerant cooling back gets into evaporimeter; Basically eliminated the liquid state loss that water as refrigerant gets into behind the evaporimeter self flash distillation cooling; Make water as refrigerant can all be used for refrigeration, the COP value of heat pump is improved, reached the effect that one action two gets cooling circulating water.Cool cycles water discharge pipes 8 in first water-cooled condenser 5 of steam power plant be divided into two the tunnel: the one tunnel be introduced into n platform absorption heat pump XRn evaporimeter; Return successively then; Get into the evaporimeter of second absorption heat pump XR2, first absorption heat pump XR1, heat again from returning first water-cooled condenser 5 after the evaporimeter of first absorption heat pump XR1 flows out at last.Another road enters atmosphere to unnecessary heat through cooling tower 11, air cooling device 12 or a device for cooling 13.Direct Air-Cooled power plant second water-cooled condenser 6 links to each other with the admission pipeline of air cooling device, a part of second water-cooled condenser 6 that gets into of exhaust steam in steam turbine, a part of air cooling device that gets into.In this system heat supply network recirculated water and cooling circulating water two at the most the series flow in the platform heat pump make the performance of heat pump obtain optimization, each item technical-economic index of power plant's cogeneration operation is further improved.
Embodiment 2:
Shown in Fig. 1 (b), the heat supply network backwater that Fig. 1 (b) relates to for the utility model directly advances heat pump subcooler and cooling circulating water series connection sketch map.Fig. 1 (b) is the cooling circulating water series circulation with Fig. 1 (a) difference.
Described heat supply network backwater also can carry out heat exchange with a shared subcooler (not drawing among the figure) of many heat pumps.The water as refrigerant pipeline of each heat pump (not drawing among the figure) is connected in parallel with subcooler, through backheat pump after the subcooler heat release.After heating up in subcooler, the heat supply network backwater merges with another road.

Claims (6)

1. a steam power plant reclaims absorption heat pump waste heat carbonated drink formula heating system; Comprise sucking condensing turbine (1), extracted steam from turbine pipe (3), first water-cooled condenser (5), vapor-water heat exchanger (9) and absorption heat pump (XR1 ... N); Said absorption heat pump (XR1 ... N) the n platform is arranged; N is >=2 natural number, it is characterized in that: said absorption heat pump (XR1 ... N) have additional subcooler (7), system's increase has one second water-cooled condenser (6); The parallel connection after getting into steam power plant of heat supply network backwater gets into each absorption heat pump (XR1 ... N) subcooler (7); Outflow gathers the absorber that the back series connection gets into second water-cooled condenser (6) and first absorption heat pump (XR1), gets into the absorber of second absorption heat pump (XR2) again ... Be connected in series successively, until the absorber that gets into n platform absorption heat pump (XRn); Go out the condenser that gets into this n platform absorption heat pump (XRn) behind the absorber of n platform absorption heat pump (XRn) again; Then from n-1, n-2 ... Be connected in series successively, from the condenser of first absorption heat pump (XR1), go out at last, directly or again behind vapor-water heat exchanger (9), see off; The cooling circulating water of first water-cooled condenser (5) goes out the parallel connection of said first water-cooled condenser (5) back or series connection gets into the evaporimeter of absorption heat pump (XRn) and the cooling system of steam power plant.
2. a kind of steam power plant according to claim 1 reclaims absorption heat pump waste heat carbonated drink formula heating system; It is characterized in that: the cooling circulating water of said first water-cooled condenser (5) go out be divided into behind said first water-cooled condenser (5) the two tunnel: the one tunnel be introduced into n platform absorption heat pump (XRn) evaporimeter; Return successively then ... Get into the evaporimeter of second, first absorption heat pump; From the evaporimeter of first absorption heat pump (XR1), go out at last, return first water-cooled condenser (5); Another road gets into the cooling system of steam power plant.
3. a kind of steam power plant according to claim 1 reclaims absorption heat pump waste heat carbonated drink formula heating system; It is characterized in that: the cooling circulating water of said first water-cooled condenser (5) goes out the evaporimeter that is introduced into n platform absorption heat pump (XRn) behind said first water-cooled condenser (5); Return successively then ... Get into the evaporimeter of second, first absorption heat pump, from the evaporimeter of first absorption heat pump (XR1), go out at last, and then get into the cooling system of steam power plant.
4. reclaim absorption heat pump waste heat carbonated drink formula heating system according to claim 1 or 2 or 3 described a kind of steam power plants; It is characterized in that: said each absorption heat pump (XR1 ... N) subcooler (7) is merged into a subcooler; Each absorption heat pump (XR1 ... N) water as refrigerant pipeline parallel connection inserts the subcooler after this merging, and the heat supply network backwater gets into second water-cooled condenser (6) after going out the subcooler after this merging.
5. reclaim absorption heat pump waste heat carbonated drink formula heating system according to claim 1 or 2 or 3 described a kind of steam power plants, it is characterized in that: the cooling system of said steam power plant is cooling tower (11), air cooling device (12) or a device for cooling (13).
6. reclaim absorption heat pump waste heat carbonated drink formula heating system according to claim 1 or 2 or 3 described a kind of steam power plants, it is characterized in that: described absorption heat pump is a separate unit multisection type absorption heat pump.
CN 201120268710 2011-07-27 2011-07-27 Thermal power plant recovery absorption heat pump waste heat steam-water type heat supply system Withdrawn - After Issue CN202182507U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120268710 CN202182507U (en) 2011-07-27 2011-07-27 Thermal power plant recovery absorption heat pump waste heat steam-water type heat supply system

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Application Number Priority Date Filing Date Title
CN 201120268710 CN202182507U (en) 2011-07-27 2011-07-27 Thermal power plant recovery absorption heat pump waste heat steam-water type heat supply system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102331028A (en) * 2011-07-27 2012-01-25 双良节能系统股份有限公司 Afterheat steam-water type heat supply system for recycling and absorption type heat pump of thermal power plant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102331028A (en) * 2011-07-27 2012-01-25 双良节能系统股份有限公司 Afterheat steam-water type heat supply system for recycling and absorption type heat pump of thermal power plant

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RGAV Abandon patent right to avoid regrant
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Granted publication date: 20120404

Effective date of abandoning: 20130501