CN102997490A - Waste heat recovery type distributed energy and sewage source heat pump coupling system - Google Patents
Waste heat recovery type distributed energy and sewage source heat pump coupling system Download PDFInfo
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- CN102997490A CN102997490A CN2012104777091A CN201210477709A CN102997490A CN 102997490 A CN102997490 A CN 102997490A CN 2012104777091 A CN2012104777091 A CN 2012104777091A CN 201210477709 A CN201210477709 A CN 201210477709A CN 102997490 A CN102997490 A CN 102997490A
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- heat
- heat pump
- sewage source
- heat exchanger
- sewage
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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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
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a waste heat recovery type distributed energy and 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 sewage source 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 the sewage source heat pump system through a steam-water heat exchanger; and thus, at least 9 percent of waste heat can be recovered, the temperature of sewage in the sewage source heat pump 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 sewage.
Description
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 source heat pump coupled 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.
Summary of the invention
The present invention is with afterheat recovery type distributed energy and sewage source heat pump system coupling, solved the energy waste problem that still causes with the direct discharging of the flue gas of heat after the waste heat recovery, effectively again utilized simultaneously sewage resource, solve the excessively low problem of sewage temperature in the sewage source heat pump in winter, improved the efficient of using energy source.
The present invention overcomes the technical scheme that its technical problem adopts to be, whole coupled system comprises afterheat recovery type distributed energy subsystem, sewage source heat pump subsystem, and wherein afterheat recovery type distributed energy subsystem comprises: gas engine, generator, waste heat boiler, condensing heat exchanger, absorption heat pump; The sewage source heat pump subsystem comprises: sewage source heat pump, vapor-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 heat input absorption heat pump; The flue gas of discharging after the condensing heat exchanger heat exchange enters into vapor-water heat exchanger by the flue tail gas pipeline, and vapor-water heat exchanger is replaced the heat in the flue gas in the sewage that enters sewage source heat pump.
In said system, condensing heat exchanger gives off all natural gas firing that fume afterheat accounts for and produces 10% of heat, by vapor-water heat exchanger this part heat is replaced in the sewage source heat pump system, can reclaim at least 9% waste heat, can make the temperature of sewage improve 2 ℃, the deficiency that additional sewage temperature is excessively low, the simultaneously raising of sewage water temperature can improve heat pump efficiency about 6% again.
Coupling by afterheat recovery type distributed energy and sewage 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 afterheat recovery type distributed energy and sewage source heat pump coupled system 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 sewage, 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 the 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. sewage conduct, 8. vapor-water heat exchanger, 9. flue tail gas pipeline, 10. heat supply pipeline, 11. water return pipelines, 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 heat input absorption heat pump 5; 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 sewage that enters sewage source heat pump 6.
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 source heat pump coupled system, comprise afterheat recovery type distributed energy subsystem, sewage 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); The sewage source heat pump subsystem comprises: sewage source heat pump (6), vapor-water heat exchanger (8); 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 heat input absorption heat pump (5); 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 sewage that enters sewage source heat pump (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104777091A CN102997490A (en) | 2012-11-22 | 2012-11-22 | Waste heat recovery type distributed energy and sewage source heat pump coupling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104777091A CN102997490A (en) | 2012-11-22 | 2012-11-22 | Waste heat recovery type distributed energy and sewage source heat pump coupling system |
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| CN102997490A true CN102997490A (en) | 2013-03-27 |
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| CN2012104777091A Pending CN102997490A (en) | 2012-11-22 | 2012-11-22 | Waste heat recovery type distributed energy and sewage source heat pump coupling system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163367A (en) * | 2018-09-06 | 2019-01-08 | 大连民族大学 | A kind of air-source with second vapor injection-water source combined heat-pump heat supply method |
| WO2022121486A1 (en) * | 2020-12-08 | 2022-06-16 | 深圳市燃气集团股份有限公司 | Heating system employing natural gas |
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| 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 |
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| CN201615651U (en) * | 2009-10-27 | 2010-10-27 | 中国石油化工股份有限公司 | Refrigeration heat pump device taking high-temperature flue gas as power |
| 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 |
| CN202928196U (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 sewage source heat pump coupling system |
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2012
- 2012-11-22 CN CN2012104777091A patent/CN102997490A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN201615651U (en) * | 2009-10-27 | 2010-10-27 | 中国石油化工股份有限公司 | Refrigeration heat pump device taking high-temperature flue gas as power |
| CN101726110A (en) * | 2009-11-20 | 2010-06-09 | 清华大学 | Heatpump type gas-fired boiler waste heat recovery unit |
| 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 |
| CN202928196U (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 sewage source heat pump coupling system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163367A (en) * | 2018-09-06 | 2019-01-08 | 大连民族大学 | A kind of air-source with second vapor injection-water source combined heat-pump heat supply method |
| WO2022121486A1 (en) * | 2020-12-08 | 2022-06-16 | 深圳市燃气集团股份有限公司 | Heating system employing natural gas |
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Application publication date: 20130327 |