CN102980231A - Distributed energy resource and soil source heat pump coupling system - Google Patents
Distributed energy resource and soil source heat pump coupling system Download PDFInfo
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- CN102980231A CN102980231A CN 201210476089 CN201210476089A CN102980231A CN 102980231 A CN102980231 A CN 102980231A CN 201210476089 CN201210476089 CN 201210476089 CN 201210476089 A CN201210476089 A CN 201210476089A CN 102980231 A CN102980231 A CN 102980231A
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Abstract
The invention discloses a distributed energy resource and soil source heat pump coupling system. A gas engine combusts natural gas to drive a power generator, the power generator generates power to drive a heat pump to generate one part of heat, and smoke gas generated by the gas engine enters an absorption heat pump, the absorption heat pump absorbs the heat in the smoke gas exhausted by the gas engine and supplies heat to a building directly through a heat supply pipe, exhausted smoke tail gas after the absorption heat pump supplies heat enters a condensation heat exchanger, and therefore, the other part of heat is recovered; and in a waste heat recovery process, the waste heat of the smoke gas exhausted by the condensation heat exchanger accounts for 10 percent of the heat generated by combusting all natural gas. According to the invention, the heat is replaced to medium water of a soil source heat pump system through a steam-water heat exchanger, at least 9 percent of waste heat can be recovered, and the temperature of the medium water can be increased by 2 DEG C; and meanwhile, by increasing the water temperature of the medium water, the efficiency of a heat pump can be increased by about 6 percent.
Description
Technical field
The present invention relates to distributed energy and pump coupled heat system, especially a kind of distributed energy and soil 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 the coupling of distributed energy and soil source heat pump system, solved after the waste heat recovery still the energy waste problem that the direct discharging with the flue gas waste gas of heat causes, and improved the efficient of using energy source.
The present invention overcomes the technical scheme that its technical problem adopts to be, a kind of distributed energy and soil source heat pump coupled system, comprise distributed energy subsystem, soil source heat pump subsystem, wherein the distributed energy subsystem comprises: gas engine, generator, condensing heat exchanger, absorption heat pump; The soil source heat pump subsystem comprises: soil source heat pump, vapor-water heat exchanger, soil source intermediary waterpipe, water return pipeline, heat supply pipeline, exhaust emission pipe; The gas engine gas-firing drives generator, and the generator generating is as the power supply that drives soil source heat pump; The flue gas of simultaneously gas engine generation enters into absorption heat pump, and the heat that absorption heat pump is prepared directly is space heating by heat supply pipeline; The flue tail gas that absorption heat pump gives off enters into condensing heat exchanger; The flue 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 soil heat exchange intermediary's water later, and the waste gas that vapor-water heat exchanger is discharged is discharged by exhaust emission pipe.
Usually the sewage source heat pump system of northern China, winter, the soil moisture excessively lowly caused intermediary's water temperature excessively low, caused the soil source heat pump can not normal boot-strap.And in said system, condensing heat exchanger gives off all natural gas firing that fume afterheat accounts for and produces 10% of heat, the present invention replaces this part heat in intermediary's water of soil 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 ℃, the simultaneously raising of intermediary's water water temperature can improve heat pump efficiency about 6% again.
Coupling by distributed energy and soil 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 soil 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 by the soil source heat pump heating, the benefit of the Distribution of Natural formula energy is further promoted, and promotes the benign development of industry.
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 evaporator end water inlet water temperature of soil source heat pump subsystem, 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. condensing heat exchanger, 4. absorption heat pump, 5. soil source heat pump, 6. vapor-water heat exchanger, 7. soil source intermediary waterpipe, 8. water return pipeline, 9. heat supply pipeline 10. exhaust emission pipes.
The specific embodiment
In the drawings, gas engine 1 gas-firing drives generator 2, and generator 2 generatings are as the power supply that drives soil source heat pump 5; The flue gas of simultaneously gas engine 1 generation enters into absorption heat pump 4, and the heat that absorption heat pump 4 is prepared directly is space heating by heat supply pipeline 9; The flue tail gas that absorption heat pump 4 gives off enters into condensing heat exchanger 3; The flue gas of discharging after condensing heat exchanger 3 heat exchange enters into vapor-water heat exchanger 6, and vapor-water heat exchanger 6 is replaced the heat in the flue gas in soil heat exchange intermediary's water later, and the waste gas that vapor-water heat exchanger 6 is discharged is discharged by exhaust emission pipe 10.
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. a distributed energy and soil source heat pump coupled system, comprise distributed energy subsystem, soil source heat pump subsystem, wherein the distributed energy subsystem comprises: gas engine (1), generator (2), condensing heat exchanger (3), absorption heat pump (4); The soil source heat pump subsystem comprises: soil source heat pump (5), vapor-water heat exchanger (6) soil source intermediary waterpipe (7), water return pipeline (8), heat supply pipeline (9), exhaust emission pipe (10); It is characterized in that: gas engine (1) gas-firing drives generator (2), and generator (2) generating is as the power supply that drives sewage source heat pump (5); The flue gas of simultaneously gas engine (1) generation enters into absorption heat pump (4), and the heat that absorption heat pump (4) is prepared directly is space heating by heat supply pipeline (9); The flue tail gas that absorption heat pump (4) gives off enters into condensing heat exchanger (3); The flue gas of discharging after condensing heat exchanger (3) heat exchange enters into vapor-water heat exchanger (6), vapor-water heat exchanger (6) is replaced the heat in the flue gas in soil heat exchange intermediary's water later, and the waste gas that vapor-water heat exchanger (6) is discharged is discharged by exhaust emission pipe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210476089 CN102980231A (en) | 2012-11-22 | 2012-11-22 | Distributed energy resource and soil source heat pump coupling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210476089 CN102980231A (en) | 2012-11-22 | 2012-11-22 | Distributed energy resource and soil source heat pump coupling system |
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| CN102980231A true CN102980231A (en) | 2013-03-20 |
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| CN 201210476089 Pending CN102980231A (en) | 2012-11-22 | 2012-11-22 | Distributed energy resource and soil source heat pump coupling system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996571A (en) * | 2017-05-17 | 2017-08-01 | 北京华源泰盟节能设备有限公司 | A kind of coal-fired hot-water boiler fume afterheat depth recovery system and its method |
| CN108870804A (en) * | 2018-08-31 | 2018-11-23 | 华电郑州机械设计研究院有限公司 | A kind of building formula distributed energy resource system of no cooling tower |
| CN108906869A (en) * | 2018-08-14 | 2018-11-30 | 中节能城市节能研究院有限公司 | A kind of contaminated soil in-situ heat repair system and method using distributed energy |
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2012
- 2012-11-22 CN CN 201210476089 patent/CN102980231A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996571A (en) * | 2017-05-17 | 2017-08-01 | 北京华源泰盟节能设备有限公司 | A kind of coal-fired hot-water boiler fume afterheat depth recovery system and its method |
| CN108906869A (en) * | 2018-08-14 | 2018-11-30 | 中节能城市节能研究院有限公司 | A kind of contaminated soil in-situ heat repair system and method using distributed energy |
| CN108870804A (en) * | 2018-08-31 | 2018-11-23 | 华电郑州机械设计研究院有限公司 | A kind of building formula distributed energy resource system of no cooling tower |
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Application publication date: 20130320 |