CN102997501A - Waste heat recovery type distributed energy and urban trunk canal sewage source heat pump coupling system - Google Patents

Waste heat recovery type distributed energy and urban trunk canal sewage source heat pump coupling system Download PDF

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Publication number
CN102997501A
CN102997501A CN2012104776169A CN201210477616A CN102997501A CN 102997501 A CN102997501 A CN 102997501A CN 2012104776169 A CN2012104776169 A CN 2012104776169A CN 201210477616 A CN201210477616 A CN 201210477616A CN 102997501 A CN102997501 A CN 102997501A
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China
Prior art keywords
heat
water
heat exchanger
heat pump
sewage
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Pending
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CN2012104776169A
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Chinese (zh)
Inventor
姚伟君
毕海洋
李猛
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Dalian Baoguang Energy Saving Air Conditioning Equipment Factory
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Dalian Baoguang Energy Saving Air Conditioning Equipment Factory
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Priority to CN2012104776169A priority Critical patent/CN102997501A/en
Publication of CN102997501A publication Critical patent/CN102997501A/en
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    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

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  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The invention discloses a waste heat recovery type distributed energy and urban trunk canal sewage source heat pump coupling system. Natural gas is burned by a gas engine to drive a generator; the generator generates power to drive a heat pump to produce a part of heat; meanwhile, smoke generated by the gas engine enters a waste heat boiler; the smoke and steam discharged by the waste heat boiler are absorbed by a condensing heat exchanger and an absorbing heat pump respectively; heat discharged by the condensing heat exchanger is input into the absorbing heat pump so as to provide another part of heat; in a waste heat recovery process, the waste heat of the smoke discharged by the condensing heat exchanger accounts for 10 percent of the heat produced by full natural gas burning; the part of heat is displaced to medium water in the urban trunk canal sewage source heat pump system through a steam-water heat exchanger; and thus, at least 9 percent of waste heat can be recovered, the defect of over-low temperature of the medium water at the evaporator end of the sewage source heat pump system can be overcome, the temperature of the medium water is improved by 2 DEG C, and meanwhile, the heat pump efficiency can be improved by about 6 percent because of the temperature of the medium water.

Description

Afterheat recovery type distributed energy and sewage of city main canal source pump coupled heat system
Technical field
The present invention relates to distributed energy and water resource heat pump coupled system, especially a kind of afterheat recovery type distributed energy and sewage of city main canal source pump coupled heat system.
Background technology
Be accompanied by the increase of electricity needs and the aggravation of world energy sources crisis, readjust the energy structure, improve energy utilization rate, improve energy security, the solution environmental pollution is own through becoming the emphasis of China's energy strategy.Distributed energy resource system is a kind of multiple-supplying supply system that is based upon on the cascaded utilization of energy ideal basis, by at Demand-side according to the different demands of user to the energy, realize the energy supply pattern of " temperature counterpart, cascade utilization ", the loss of conveying process is down to minimum, thereby realize the maximization of efficiency of energy utilization and environmental benefit.The Distribution of Natural formula energy is to utilize natural gas to be fuel, and after the combustion machine generated electricity by gas-firing, the high-temperature flue gas of generation was sent into waste heat utilization equipment, can be used for heating winter, can be used for cooling summer, but productive life hot water also, and driving the shortage of heat part can be supplied by the combustion gas of afterburning.Thereby realize the cascade utilization to the energy, can improve efficiency of energy utilization to 80%-90%.That but this conventional distributed energy resource system exists is single, energy utilization rate promotes the problems such as limited, economic not good enough.So produced gradually new distributed energy coupled system, it is based on conventional distributed energy technology be coupled environment, regenerative resource, conventional energy resource system, novel regional complex ENERGY PLANNING, intelligent grid and intelligence communication control technology etc., consisted of a kind of new distribution type energy resource system, but still the situation that exists a part directly to discharge with the flue gas waste gas of low-grade energy.Pollute environment, wasted energy.Along with the development in city, the municipal sewage amount is increasing, and becomes gradually very important a kind of available resources, also contains a lot of foreign material but sewage is not only dirty but also smelly, is a difficult problem to its utilization always.
Summary of the invention
The present invention is with afterheat recovery type distributed energy and the coupling of sewage of city main canal source heat pump system, solved the energy waste problem that still causes with the direct discharging of the flue gas waste gas of heat after the waste heat recovery, take full advantage of simultaneously sewage of city main canal, turn waste into wealth, from sewage, extract heat, improved the efficient of using energy source.
The present invention overcomes the technical scheme that its technical problem adopts to be, a kind of afterheat recovery type distributed energy and sewage of city main canal source pump coupled heat system, comprise afterheat recovery type distributed energy subsystem, sewage of city main canal source heat pump subsystem, wherein afterheat recovery type distributed energy subsystem comprises: gas engine, generator, waste heat boiler, condensing heat exchanger, absorption heat pump; Sewage of city main canal source heat pump subsystem comprises: sewage source heat pump, vapor-water heat exchanger, water water-to-water heat exchanger; The gas engine gas-firing drives generator, and the generator generating drives sewage source heat pump and carries out heat supply; The flue gas of simultaneously gas engine generation enters into waste heat boiler, and condensing heat exchanger and absorption heat pump absorb respectively flue gas and the high-temperature steam that waste heat boiler gives off, and condensing heat exchanger is emitted in the heat input absorption heat pump; The water water-to-water heat exchanger connects sewage conduct and the heat in the sewage is replaced in the intermediary's water that is connected with vapor-water heat exchanger, the flue tail gas of discharging after the condensing heat exchanger heat exchange enters into vapor-water heat exchanger, and vapor-water heat exchanger is replaced the heat in the flue gas in the intermediary's water that enters the sewage source heat pump evaporator end.
In said system, condensing heat exchanger gives off all natural gas firing that fume afterheat accounts for and produces 10% of heat, this part heat is replaced in intermediary's water of sewage of city main canal source heat pump system by vapor-water heat exchanger, can reclaim at least 9% waste heat, can make the temperature of intermediary's water improve 2 ℃, replenish the excessively low deficiency of intermediary's hydro-thermal amount displacement rear intermediary coolant-temperature gage in sewage and the water water-to-water heat exchanger, the simultaneously raising of intermediary's water water temperature can improve heat pump efficiency about 6% again.
Coupling by afterheat recovery type distributed energy and sewage of city main canal source heat pump, realize that the system capacity step takes full advantage of, according to the performance of heat pump (Energy Efficiency Ratio be 4.0 consider), 40% electric power that gas engine sends can produce heat or the cold more than 160%, more than 40%, the final primary energy comprehensive utilization ratio of the coupled system of afterheat recovery type distributed energy and sewage of city main canal source heat pump can reach more than 200% in conjunction with the primary energy comprehensive utilization ratio of residual neat recovering system.Native system can also make the electric energy of online difficulty be fully used, and the benefit of the Distribution of Natural formula energy is further promoted, and promotes the benign development of industry by again utilizing the energy in the seawater, makes the energy that originally runs off obtain utilizing, and has saved resource.
The invention has the beneficial effects as follows: native system realized the taking full advantage of of NG Distributed Energy System fume afterheat, and improved evaporator end intermediary water water inlet water temperature in the sewage source heat pump system, thereby improved entire system efficient.
Description of drawings
Fig. 1 is schematic diagram of the present invention.
1. gas engines among the figure, 2. generator, 3. waste heat boiler, 4. condensing heat exchanger, 5. absorption heat pump, 6. sewage source heat pump, 7. water water-to-water heat exchanger, 8. vapor-water heat exchanger, 9. flue tail gas pipeline, 10. heat supply pipeline, 11. sewage of city main canal inlet channels, 12. flue gas exhausting pipe lines.
The specific embodiment
In the drawings, gas engine 1 gas-firing drives generator 2, and generator 2 generatings drive sewage source heat pump 6 and carry out heat supply; The flue gas of simultaneously gas engine 1 generation enters into waste heat boiler 3, and condensing heat exchanger 4 and absorption heat pump 5 absorb respectively flue gas and the high-temperature steam that waste heat boiler 3 gives off, and condensing heat exchanger 4 is emitted in the heat input absorption heat pump 5; Water water-to-water heat exchanger 7 connects sewage of city main canal inlet channel 11 and the heat in the sewage is replaced in the intermediary's water that is connected with vapor-water heat exchanger 8, the flue gas of discharging after condensing heat exchanger 4 heat exchange enters into vapor-water heat exchanger 8 by flue tail gas pipeline 9, and vapor-water heat exchanger 8 is replaced the heat in the flue gas in the intermediary's water that enters sewage source heat pump 6 evaporator end.
The present invention does not limit to and present embodiment, and protection scope of the present invention is all classified in any equivalent concepts or change in the technical scope that the present invention discloses as.

Claims (1)

1. an afterheat recovery type distributed energy and sewage of city main canal source pump coupled heat system, comprise afterheat recovery type distributed energy subsystem, sewage of city main canal source heat pump subsystem, wherein afterheat recovery type distributed energy subsystem comprises: gas engine (1), generator (2), waste heat boiler (3), condensing heat exchanger (4), absorption heat pump (5); Sewage of city main canal source heat pump subsystem comprises: sewage source heat pump (6), vapor-water heat exchanger (8), water water-to-water heat exchanger (7); It is characterized in that: gas engine (1) gas-firing drives generator (2), and generator (2) generating drives sewage source heat pump (6) and carries out heat supply; The flue gas of simultaneously gas engine (1) generation enters into waste heat boiler (3), condensing heat exchanger (4) and absorption heat pump (5) absorb respectively flue gas and the high-temperature steam that waste heat boiler (3) gives off, and condensing heat exchanger (4) is emitted in the heat input absorption heat pump (5); Water water-to-water heat exchanger (7) connects sewage of city main canal inlet channel (11) and the heat in the sewage is replaced in the intermediary's water that is connected with vapor-water heat exchanger (8); The flue gas of discharging after condensing heat exchanger (4) heat exchange enters into vapor-water heat exchanger (8) by flue tail gas pipeline (9), and vapor-water heat exchanger (8) is replaced the heat in the flue gas in the intermediary's water that enters sewage source heat pump (6) evaporator end.
CN2012104776169A 2012-11-22 2012-11-22 Waste heat recovery type distributed energy and urban trunk canal sewage source heat pump coupling system Pending CN102997501A (en)

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CN2012104776169A CN102997501A (en) 2012-11-22 2012-11-22 Waste heat recovery type distributed energy and urban trunk canal sewage source heat pump coupling system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109405032A (en) * 2017-08-18 2019-03-01 国家电投集团科学技术研究院有限公司 Nuclear power station waste heat for supplying system
CN114111108A (en) * 2021-10-28 2022-03-01 港华能源投资有限公司 Method for evaluating energy supply capacity of reclaimed water source heat pump and related device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1536293A (en) * 2003-04-11 2004-10-13 清华大学 Dual-section heat pump type heat-electricity combined supply system by using gas turbine as power
CN101285627A (en) * 2007-04-11 2008-10-15 中国科学院工程热物理研究所 Composite energy supply system and its hidden heat utilization method
CN101799226A (en) * 2010-03-02 2010-08-11 清华大学 Heat-gaining combined heat and power system
CN102359739A (en) * 2011-09-14 2012-02-22 张军 Gas-steam circulation heating-electricity-cooling combined supply system and method for thermal power plant with zero energy loss rate
CN202928202U (en) * 2012-11-22 2013-05-08 大连葆光节能空调设备厂 Waste heat recovery type distributed energy and urban trunk sewage source heat pump coupling system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1536293A (en) * 2003-04-11 2004-10-13 清华大学 Dual-section heat pump type heat-electricity combined supply system by using gas turbine as power
CN101285627A (en) * 2007-04-11 2008-10-15 中国科学院工程热物理研究所 Composite energy supply system and its hidden heat utilization method
CN101799226A (en) * 2010-03-02 2010-08-11 清华大学 Heat-gaining combined heat and power system
CN102359739A (en) * 2011-09-14 2012-02-22 张军 Gas-steam circulation heating-electricity-cooling combined supply system and method for thermal power plant with zero energy loss rate
CN202928202U (en) * 2012-11-22 2013-05-08 大连葆光节能空调设备厂 Waste heat recovery type distributed energy and urban trunk sewage source heat pump coupling system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109405032A (en) * 2017-08-18 2019-03-01 国家电投集团科学技术研究院有限公司 Nuclear power station waste heat for supplying system
CN109405032B (en) * 2017-08-18 2024-03-19 国家电投集团科学技术研究院有限公司 Nuclear power station waste heat supply system
CN114111108A (en) * 2021-10-28 2022-03-01 港华能源投资有限公司 Method for evaluating energy supply capacity of reclaimed water source heat pump and related device

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Application publication date: 20130327