CN102840719B - Solar energy air source absorption heat pump device - Google Patents
Solar energy air source absorption heat pump device Download PDFInfo
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- CN102840719B CN102840719B CN201210361473.5A CN201210361473A CN102840719B CN 102840719 B CN102840719 B CN 102840719B CN 201210361473 A CN201210361473 A CN 201210361473A CN 102840719 B CN102840719 B CN 102840719B
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Abstract
The invention discloses a solar energy air source absorption heat pump device. The solar energy air source absorption heat pump device is characterized in that natural energy source solar energy is taken as the driving energy of the unit, and the solar energy is input by a heating exchanger in a generator to the solar heat pump device to provide power for unit operation; energy in the air is absorbed through an air source heat exchanger coil; and the two parts of energy are released through condensation of refrigerant vapor and fusion heat of the refrigerant vapor and dilute solution, and transferred to hot water, thus the energy utilization rate is improved.
Description
Technical field
The present invention relates to a kind of solar air source absorption heat pump unit.
Background technology
At common civil buildings thing, the energy consumption of air-conditioning has accounted for more than 58% at present, brings very large pressure to supply of electric power.China is using the important component part of solar energy utilization regenerative resource in alternative energy strategy, and the development of having put into effect a series of policy guidance file encouragement and support solar energy Study on Transformation and application cause.
Traditional heat pump apparatus of air source, adopts the driver part of compressor as unit, and the degree of wear is large, and noise is large, and service life is short.For example: Chinese patent: a kind of energy-saving solar air source heat pump Multi Role Aircraft in CN 102012129A, uses compressor as driver part.
Traditional absorption heat pump unit great majority adopt natural gas, the industrial exhaust heat driving force as unit, and demand motive energy purchase cost, increases operating cost.For example: in the disclosed technology contents of Chinese patent CN 201561564U, a combustion gas is as unit operation power.Tradition sorption type heat pump adopts natural gas as driving force, has taken away a large amount of heats in the flue gas of generation, and the utilization rate of the energy is low, and the character of conventional heat pump unit cold-producing medium working medium used has determined its stable operation at low temperatures.
Summary of the invention
For solving above technical deficiency, the invention provides a kind of energy-saving and emission-reduction, the solar air source absorption heat pump unit that heat utilization efficiency is high.
The present invention is achieved by the following measures:
A kind of solar air source absorption heat pump unit of the present invention, comprising:
Generator, is inside provided with the heat exchanger of solar heater, and generator top is provided with the even cloth structure of liquid film evaporation section, stripping section and solution I;
Rectifier, its medium inlet is communicated with the media outlet at generator top, the media outlet of rectifier is connected to heat exchange coil III, in rectifier, be provided with heat exchange coil I, the entrance of described heat exchange coil I is connected with solution pump, the outlet of heat exchange coil I is divided into two-way, and a road connects the even cloth structure of the solution I of generator, and another road is connected to heat exchange coil II;
Recoler, is inside provided with heat exchange coil IV;
Partition water-cooled condenser, is provided with cooling water inlet and hot water outlet, and described heat exchange coil III is arranged in partition water-cooled condenser, and the outlet of heat exchange coil III connects heat exchange coil IV;
Air-source heat exchanger coil, is furnished with blower fan, the entrance of air-source heat exchanger coil connect heat exchange coil IV outlet and between be provided with throttling arrangement, the medium inlet of the outlet connecting secondary cooler of air-source heat exchanger coil;
Membrance-type absorber, top is provided with the even cloth structure of solution II, the medium inlet of membrance-type absorber is connected with the media outlet of recoler, described heat exchange coil II is arranged in membrance-type absorber, the outlet of heat exchange coil II connects the stripping section of generator, the even cloth structure of described solution II connect generator liquid film evaporation section and between be provided with weak solution magnetic valve; And
Falling film type heat exchanger, is provided with cooling water inlet and hot water outlet, and its medium inlet connects the media outlet of membrance-type absorber, and the media outlet of falling film type heat exchanger connects solution pump.
The media outlet of above-mentioned rectifier connect air-source heat exchanger coil entrance and between be provided with defrosting valve.
Cold-producing medium in above-mentioned generator is ammonia spirit, and the refrigerant vapour concentration that described cold-producing medium heats up in a steamer through heating, carrying in generator, rectifying produces is 99.2% ~ 99.9%, and in generator, after evaporation, remaining refrigerant concentration is 3% ~ 8%.
Above-mentioned weak solution magnetic valve is connected with control module, described control module is connected with temperature sensor, liquid level sensor, control module is according to the temperature signal receiving and the aperture of liquid level signal control weak solution magnetic valve, pass through the liquid inventory of weak solution magnetic valve to control, thereby control the internal circulating load of the whole circulatory system.
The even cloth structure of above-mentioned solution I is U-shaped isocon or disk overflow pipe, and described U-shaped isocon is carbon steel pipe or stainless steel tube, is provided with 10-15 through hole and 10-15 rivet on described disk overflow pipe, and the even cloth structure of described solution II is annular isocon.
The irregular packing ring that is placed with in heat exchange coil I in above-mentioned rectifier.
In above-mentioned membrance-type absorber, be provided with GAX high-performance heat exchanger, described GAX high-performance heat exchanger is constant worm pich pipe, and the even bilayer of constant worm pich pipe is closely arranged in membrance-type absorber.
In above-mentioned generator, be provided with spiral stream guidance pipe and helical baffles.
The refrigerant vapour concentration that above-mentioned cold-producing medium heats up in a steamer through heating, carrying in generator, rectifying produces is 99.8%, and after evaporation, remaining refrigerant concentration is 4%.
The invention has the beneficial effects as follows:
1. this device, using solar source directly as drive energy, does not need to consume electric energy and converts solar energy into high-grade energy, has saved a large amount of costs of investment, has simultaneously greatly improved solar energy and turn the efficiency of hot heat energy.2. the driver part of this device using diaphragm type solution pump as unit, is absorption type refrigeration, there is no the wearing and tearing of moving component, and long service life, noise are little.3. this device is not using natural gas or industrial exhaust heat as drive energy, and the mode heat supply that adopts solar energy directly to drive, has solved the low problem of traditional absorption heat pump energy utilization rate, and a utilization rate of the energy is brought up to more than 85%.4. this device has improved the utilization rate of the unit energy, so improve heat heating rate, make its COP up to 1.8 ~ 2.0.5. when the defrosting of this device, utilize the heat of solution of emitting after dissolving with weak solution after the refrigerant vapour defrosting that enters air-source heat exchanger coil, guaranteed still can stably provide heat in the time defrosting.
Accompanying drawing explanation
Fig. 1 is structure connection diagram of the present invention.
Wherein: 1 generator, 1-1 liquid film evaporation section, 1-2 stripping section, the even cloth structure of 1-3 solution I, 1-4 spiral stream guidance pipe and helical baffles, 2 rectifiers, 2-1 heat exchange coil I, 3 partition water-cooled condensers, 3-1 heat exchange coil III, 4 recolers, 4-1 heat exchange coil IV, 5 air-source heat exchanger coils, 6 blower fans, 7 membrance-type absorbers, the even cloth structure of 7-1 solution II, 7-2 heat exchange coil II, 7-3GAX high-performance heat exchanger, 8 falling film type heat exchangers, 9 solution pumps, 10 weak solution magnetic valves, 11 defrosting valves, the heat exchanger of 12 solar heaters, 13 throttling arrangements.
The specific embodiment
Solar air source absorption heat pump unit of the present invention, the drive energy using natural energy source solar energy as unit, is input to solar energy in solar heat pump installation by heating heat exchanger in generator 1, and the power of unit operation is provided.Absorb airborne energy by air-source heat exchanger coil 5, this two-part energy discharges by the condensation of refrigerant vapour and the heat of fusion of refrigerant vapour and weak solution, passes to hot water, improves energy utilization rate.When defrosting, utilize the heat of solution of emitting after dissolving with weak solution after the refrigerant vapour defrosting that enters air-source heat exchanger coil 5, guaranteed still can stably provide the scheme of heat in the time defrosting.
Concrete structure comprises generator 1, rectifier 2, recoler 4, partition water-cooled condenser 3, air-source heat exchanger coil, membrance-type absorber 7 and falling film type heat exchanger 8.Wherein in generator 1, be provided with the heat exchanger 12 of solar heater, generator 1 top is provided with liquid film evaporation section 1-1, stripping section 1-2 and the even cloth structure of solution I 1-3.The medium inlet of rectifier 2 is communicated with the media outlet at generator 1 top, the media outlet of rectifier 2 is connected to heat exchange coil III 3-1, in rectifier 2, be provided with heat exchange coil I 2-1, the entrance of heat exchange coil I 2-1 is connected with solution pump 9, the outlet of heat exchange coil I 2-1 is divided into two-way, one tunnel meets the even cloth structure of the solution I 1-3 of generator 1, and another road is connected to heat exchange coil II 7-2.In recoler 4, be provided with heat exchange coil IV 4-1.Partition water-cooled condenser 3 is provided with cooling water inlet and hot water outlet, and heat exchange coil III 3-1 is arranged in partition water-cooled condenser 3, and the outlet of heat exchange coil III 3-1 connects heat exchange coil IV 4-1.Air-source heat exchanger coil 5 is furnished with blower fan 6, the entrance of air-source heat exchanger coil 5 connect heat exchange coil IV 4-1 outlet and between be provided with throttling arrangement 13, the medium inlet of the outlet connecting secondary cooler 4 of air-source heat exchanger coil 5.Membrance-type absorber 7 tops are provided with the even cloth structure of solution II 7-1, the medium inlet of membrance-type absorber 7 is connected with the media outlet of recoler 4, heat exchange coil II 7-2 is arranged in membrance-type absorber 7, the outlet of heat exchange coil II 7-2 connects the stripping section 1-2 of generator 1, the even cloth structure of solution II 7-1 connect generator 1 liquid film evaporation section 1-1 and between be provided with weak solution magnetic valve 10.Falling film type heat exchanger 8 is provided with cooling water inlet and hot water outlet, and its medium inlet connects the media outlet of membrance-type absorber 7, and the media outlet of falling film type heat exchanger 8 connects solution pump 9.The media outlet of rectifier 2 connect air-source heat exchanger coil entrance and between be provided with defrosting valve 11.
Inside of the present invention comprises two circulations, refrigerant circulation and absorbent circulation.Wherein send in rectifier 2 and carry out heat exchange with the ammonia of HTHP after 9 pressurizations of solution pump from falling film type heat exchanger 8 concentrated solution out, concentrated solution is heated, the ammonia of HTHP is cooled, the concentrated solution that obtains heat is divided into two parts, a part directly enters generator 1 top stripping section 1-2, and a part enters GAX high-performance heat exchanger 7-3 and the mixed high temperature weak solution of falling film absorbre 7 and carries out heat exchange.Enter the concentrated solution of stripping section 1-2 after stripping section 1-2, enter generator 1 with together with the concentrated solution of the GAX high-performance heat exchanger 7-3 from absorber, in generator 1, concentrated solution continues to draw the heat from heating heat exchanger input in generator 1, ammonia is constantly evaporation from solution, solution concentration reduces gradually, becomes weak solution.
Weak solution, after weak solution magnetic valve 10 enters membrance-type absorber 7, absorbs overheated ammonia and release heat of fusion from recoler 4 on the one hand; After mixing on the one hand, carry out exchange heat with the concentrated solution that enters GAX high-performance heat exchanger 7-3, temperature constantly reduces, concentration constantly raises, and enters afterwards falling film type heat exchanger 8, carries out with air-conditioning backwater the circulation that enters next absorbent after heat exchange (producing heat).
The ammonia of HTHP enters partition water-cooled condenser 3 from rectifier 2 out, carry out heat exchange (producing heat) with the air-conditioning backwater in partition water-cooled condenser 3, the ammonia condensation of HTHP is that liquefied ammonia enters recoler 4 afterwards, carry out exchange heat with the ammonia from air-source heat exchanger and became cold ammonia spirit, cross cold ammonia spirit and then after throttling arrangement 13 throttlings, enter air-source heat exchanger, absorb and enter recoler 4 after airborne heat (refrigeration) and become overheated ammonia, then entering membrance-type absorber 7 is absorbed by weak solution, become concentrated solution, enter again the circulation of next cold-producing medium.When defrosting, the heat of solution of emitting after utilizing the refrigerant vapour defrosting that enters air-source heat exchanger coil 5 and after weak solution dissolving, has guaranteed still can stably provide heat in the time of defrosting.
Specifically, send into after solution pump 9 pressurization from falling film type heat exchanger 8 concentrated solution out in rectifier 2 in rectifier 2 heat exchanger coils with the ammonia of HTHP out from generator 1 and carry out heat exchange at rectifier 2, in rectifier 2 cavitys, be full of packing ring and arrange and special construction by irregular, strengthened the exchange of heat transfer, mass transfer.Cold-producing medium through heating, carry heat up in a steamer, between purity 99.2% ~ 99.9% after rectifying.After the interior evaporation of generator 1, remaining refrigerant concentration is 3% ~ 8%.Preferably, cold-producing medium generator 1 interior through heating, carry heat up in a steamer, refrigerant vapour concentration is 99.8% after rectifying, after the interior evaporation of generator 1, remaining refrigerant concentration is 4%.
The even cloth structure of solution I 1-3 adopts U-shaped isocon or disk overflow pipe, and U-shaped isocon is carbon steel pipe or stainless steel tube, is provided with 10-15 through hole and 10-15 rivet on disk overflow pipe, and the even cloth structure of solution II 7-1 is annular isocon.The concentrated solution of the interior acquisition heat of rectifier 2 is divided into two parts, a part directly enters generator 1 stripping section 1-2, U-shaped isocon or disk overflow pipe by generator 1 top distribute concentrated solution uniformly, the GAX high-performance heat exchanger 7-3 that a part enters membrance-type absorber 7 carries out heat exchange with the weak solution and the mixed heat of solution of refrigerant vapour that enter absorber from generator 1, and the exchange heat that makes full use of internal system improves the utilization rate of the energy.
Enter the concentrated solution of stripping section 1-2 through the further heat exchange at stripping section 1-2, with the middle part that enters generator 1 together with the concentrated solution of the GAX high-performance heat exchanger 7-3 from membrance-type absorber 7, in generator 1, concentrated solution flows downward by spiral stream guidance pipe and helical baffles 1-4, in the process flowing downward, continue to draw the heat by the solar energy of heating heat exchanger input system inside, constantly evaporate fully at liquid film evaporation position, solution concentration reduces gradually, become weak solution, concentration is 3% ~ 8%, weak solution is by spiral stream guidance pipe, weak solution magnetic valve 10 enters membrance-type absorber 7 tops.Weak solution enters the control logic that the amount of absorption is made up of heat source temperature or leaving water temperature etc. and controls, and guarantees that the amount of weak solution and the amount of refrigerant vapour realize optimum Match.
Weak solution enters after membrance-type absorber 7, on the one hand at GAX high-performance heat exchanger 7-3 Surface absorption from the overheated ammonia of recoler 4 and discharge heat of fusion; After mixing on the one hand, carry out exchange heat with the concentrated solution that enters GAX high-performance heat exchanger 7-3, temperature constantly reduces, and concentration constantly raises, and enters afterwards falling film type heat exchanger 8, carries out entering circulation next time after heat exchange with air-conditioning backwater.
The ammonia of HTHP enters partition water-cooled condenser 3 from rectifier 2 out, carry out heat exchange with the air-conditioning backwater in partition water-cooled condenser 3, the ammonia condensation of HTHP is that liquefied ammonia enters recoler 4 afterwards, carry out exchange heat with the ammonia from air-source heat exchanger, became cold ammonia spirit, then after throttling arrangement 13 throttlings, enter air-source heat exchanger, absorb and enter recoler 4 after airborne energy and become overheated ammonia, then entering membrance-type absorber 7 is absorbed by weak solution, become concentrated solution, enter again circulation next time.When defrosting, when defrosting, defrost valve is opened, pass by the temperature on air-source heat exchanger coil 5, control hot gas flow, guarantee with minimum heat, the frost layer of air heat exchange coil pipe to be removed, the refrigerant vapour that defrosting is simultaneously used enters membrance-type absorber 7 by recoler 4 after the defrosting of air heat exchange coil pipe, with membrance-type absorber 7 top annular isocons, absorbent is sprayed on above the GAX high-performance heat exchanger 7-3 in membrance-type absorber 7 equably, realizes absorbent and cold-producing medium farthest absorbs.After absorbent and refrigerant mixed, become the concentrated solution of high temperature, the concentrated solution of this part high temperature enters cooling water in falling film type heat exchanger 8 and falling film type heat exchanger 8 and carries out heat transmission, thereby the function of still producing hot water can realize defrosting time, the problem not heated while having solved the defrosting of conventional heat pump unit, greatly improve the service efficiency of the energy, high-efficiency environment friendly, is conducive to the adjustment of energy resource structure.
GAX high-performance heat exchanger 7-3 in membrance-type absorber 7 is constant worm pich pipe, and the even bilayer of constant worm pich pipe is closely arranged in membrance-type absorber 7.In the absorption unit of GAX high-performance heat exchanger 7-3, generator 1 carries out inner backheat with absorber, by the absorption recuperation of heat of emitting in absorption process, and delivers to the use of generator 1 for generation, thereby improves the thermal efficiency of unit, improves cycle performance.Weak solution magnetic valve 10 is connected with control module, control module is connected with temperature sensor, liquid level sensor, control module is according to the temperature signal receiving and the aperture of liquid level signal control weak solution magnetic valve 10, pass through the liquid inventory of weak solution magnetic valve 10 to control, thereby control the internal circulating load of the whole circulatory system.In generator 1, be provided with spiral stream guidance pipe or helical baffles, improved heat exchange efficiency.
Cold-producing medium required for the present invention does not adopt freon to use ammonia spirit instead.Say from environment protection significance, it is applicable to current environmental requirement.Reduce the discharge capacity of CFC, reduce the gas that produces greenhouse effects, protected ozone layer, play a part positive to reducing greenhouse effects.Adopt solar energy to drive air-conditioning system as thermal source, will in environmental protection, play a great role.Adopt pure ammonia as cold-producing medium, because the freezing point of ammonia is-77.7 ℃, can under the low temperature of-20 ℃, provide sustainedly and stably hot water.
Claims (9)
1. a solar air source absorption heat pump unit, is characterized in that, comprising:
Generator, is inside provided with the heat exchanger of solar heater, and generator top is provided with the even cloth structure of liquid film evaporation section, stripping section and solution I;
Rectifier, its medium inlet is communicated with the media outlet at generator top, the media outlet of rectifier is connected to heat exchange coil III, in rectifier, be provided with heat exchange coil I, the entrance of described heat exchange coil I is connected with solution pump, the outlet of heat exchange coil I is divided into two-way, and a road connects the even cloth structure of the solution I of generator, and another road is connected to heat exchange coil II;
Recoler, is inside provided with heat exchange coil IV;
Partition water-cooled condenser, is provided with cooling water inlet and hot water outlet, and described heat exchange coil III is arranged in partition water-cooled condenser, and the outlet of heat exchange coil III connects heat exchange coil IV;
Air-source heat exchanger coil, is furnished with blower fan, the entrance of air-source heat exchanger coil connect heat exchange coil IV outlet and between be provided with throttling arrangement, the medium inlet of the outlet connecting secondary cooler of air-source heat exchanger coil;
Membrance-type absorber, top is provided with the even cloth structure of solution II, the medium inlet of membrance-type absorber is connected with the media outlet of recoler, described heat exchange coil II is arranged in membrance-type absorber, the outlet of heat exchange coil II connects the stripping section of generator, the even cloth structure of described solution II connect generator liquid film evaporation section and between be provided with weak solution magnetic valve; And
Falling film type heat exchanger, is provided with cooling water inlet and hot water outlet, and its medium inlet connects the media outlet of membrance-type absorber, and the media outlet of falling film type heat exchanger connects solution pump.
2. solar air source absorption heat pump unit according to claim 1, is characterized in that: the media outlet of described rectifier connect air-source heat exchanger coil entrance and between be provided with defrosting valve.
3. solar air source absorption heat pump unit according to claim 1, it is characterized in that: the cold-producing medium in described generator is ammonia spirit, the refrigerant vapour concentration that described cold-producing medium heats up in a steamer through heating, carrying in generator, rectifying produces is 99.2% ~ 99.9%, and in generator, after evaporation, remaining refrigerant concentration is 3% ~ 8%.
4. solar air source absorption heat pump unit according to claim 1, it is characterized in that: described weak solution magnetic valve is connected with control module, described control module is connected with temperature sensor, liquid level sensor, control module is according to the temperature signal receiving and the aperture of liquid level signal control weak solution magnetic valve, to control by the liquid inventory of weak solution magnetic valve.
5. solar air source absorption heat pump unit according to claim 1, it is characterized in that: the even cloth structure of described solution I is U-shaped isocon or disk overflow pipe, described U-shaped isocon is carbon steel pipe or stainless steel tube, on described disk overflow pipe, be provided with 10-15 through hole and 10-15 rivet, the even cloth structure of described solution II is annular isocon.
6. solar air source absorption heat pump unit according to claim 1, is characterized in that: the irregular packing ring that is placed with in the heat exchange coil I in described rectifier.
7. solar air source absorption heat pump unit according to claim 1, it is characterized in that: in membrance-type absorber, be provided with GAX high-performance heat exchanger, described GAX high-performance heat exchanger is constant worm pich pipe, and the even bilayer of constant worm pich pipe is closely arranged in membrance-type absorber.
8. solar air source absorption heat pump unit according to claim 1, is characterized in that: in described generator, be provided with spiral stream guidance pipe and helical baffles.
9. solar air source absorption heat pump unit according to claim 3, is characterized in that: described cold-producing medium in generator through heating, carry heat up in a steamer, refrigerant vapour concentration that rectifying produces is 99.8%, after evaporation, remaining refrigerant concentration is 4%.
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| CN201210361473.5A CN102840719B (en) | 2012-09-26 | 2012-09-26 | Solar energy air source absorption heat pump device |
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| CN201210361473.5A CN102840719B (en) | 2012-09-26 | 2012-09-26 | Solar energy air source absorption heat pump device |
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| CN105953458A (en) * | 2016-05-18 | 2016-09-21 | 山东阿尔普尔节能装备有限公司 | Air source absorption type heat pump device combining fuel gas |
| EP3285025B1 (en) * | 2016-08-18 | 2019-07-03 | Andreas Bangheri | Absorption heat pump and method for operating an absorption pump |
| CN107314571B (en) * | 2017-07-11 | 2020-10-27 | 新奥（中国）燃气投资有限公司 | Heat pump system and heat recovery method thereof |
| CN108120190A (en) * | 2017-11-10 | 2018-06-05 | 山东奇威特太阳能科技有限公司 | A kind of method that absorption installation heat exchanger surface delays frosting |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3894528A (en) * | 1974-06-25 | 1975-07-15 | Broyles & Broyles Inc | Solar energy collection method and apparatus |
| DE3031033A1 (en) * | 1980-08-16 | 1982-05-06 | Buderus Ag, 6330 Wetzlar | METHOD AND DEVICE FOR OPERATING A MONOVALENT ALTERNATIVE ADSORPTION HEATING SYSTEM |
| JPH09133424A (en) * | 1995-11-08 | 1997-05-20 | Matsushita Electric Ind Co Ltd | Absorption type heat pump apparatus |
| US6718792B1 (en) * | 2000-01-05 | 2004-04-13 | Rocky Research | Integrated aqua-ammonia chiller/heater |
| JP4909245B2 (en) * | 2007-11-21 | 2012-04-04 | 大阪瓦斯株式会社 | Absorption system operation method and absorption system |
| JP5116170B2 (en) * | 2009-04-08 | 2013-01-09 | 東京瓦斯株式会社 | Absorption refrigerator |
| CN201497255U (en) * | 2009-09-25 | 2010-06-02 | 中国家用电器研究院 | Solar backheating type sodium thiocyanate-ammonia absorption refrigerator air conditioner and heat pump device |
| CN201561564U (en) * | 2009-11-06 | 2010-08-25 | 清华大学 | A direct-fired air source absorption heat pump water heater |
| CN202792694U (en) * | 2012-09-26 | 2013-03-13 | 山东威特人工环境有限公司 | Solar air source absorption heat pump device |
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