CN103954068A - Absorption refrigerating machine with integrated solar assisted heat pump system - Google Patents
Absorption refrigerating machine with integrated solar assisted heat pump system Download PDFInfo
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- CN103954068A CN103954068A CN201410153201.5A CN201410153201A CN103954068A CN 103954068 A CN103954068 A CN 103954068A CN 201410153201 A CN201410153201 A CN 201410153201A CN 103954068 A CN103954068 A CN 103954068A
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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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]
- Y02B30/62—Absorption based systems
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- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention discloses an absorption refrigerating machine with an integrated solar assisted heat pump system. The absorption refrigerating machine mainly consists of an absorption refrigerating system and the integrated solar assisted heat pump system, wherein the integrated solar assisted heat pump system consists of a heat storage water tank, a condenser, a pump, a compressor, a throttling valve, U-shaped evaporating pipes and a solar thermal collector, the compressor, the U-shaped evaporating pipes the throttling valve and the condenser form a refrigerant circulating passage, and the U-shaped evaporating pipes are arranged in every solar vacuum heat collecting pipes of the solar thermal collector. Low-temperature heat (low-grade heat sources) which cannot be directly utilized are converted into high temperature heat sources to be utilized by the heat pump system, and the energy utilization efficiency can be obviously improved by the adoption of the compression heat pump; the solar vacuum heat collecting pipes are filled with phase change energy storage materials, so that not only is the problem that the heat storage capacity is insufficient caused by the fact that sensible heat is utilized for storing heat solved, but also the defect of instable operation efficiency of the heat pump is overcome, and therefore the COP (coefficient of performance) and the operation stability of the system are improved.
Description
Technical field
The present invention relates to a kind of refrigeration plant, specifically relate to a kind of solar absorption refrigerating machine.
Background technology
Countries in the world are all in the research that steps up to carry out solar airconditioning technology at present.According to investigations, there are Italy, Spain, Germany, the U.S., Japan, Korea S, Singapore, Hong Kong etc. in the countries and regions of or setting up solar air-conditioner system.This is that air conditioning energy consumption due to developed country occupies sizable proportion in civilian energy consumption in the whole year, utilize Driven by Solar Energy air-conditioning system to save conventional energy resource, conservation of nature environment all tool be of great significance.In order further to widen the range of application of solar energy, make its larger effect of performance in energy-conservation and environmental protection, China has carried out solar airconditioning technical research in the enforcement period of the ninth five-year plan, be intended to demonstrate by research of technique and system, solve the technical barrier in solar airconditioning, thereby lay technical foundation for realizing as early as possible the commercialization of solar airconditioning.
So-called solar energy absorption type refrigeration, utilizes solar heat collector to provide its generator needed heat medium water for Absorption Refrigerator exactly.The temperature of heat medium water is higher, and the coefficient of performance of refrigeration machine (also claiming COP) is higher, and the refrigerating efficiency of air-conditioning system is also higher like this.
The problem that traditional solar absorption refrigerating machine exists: first, because the one-level lithium-bromide absorption-type refrigerating machine of solar refrigeration system requires heat source temperature, be 88-95 ℃, the manufacturing process that manufacture the high-temp solar heat collector that reaches this temperature range is complicated, cost is high; Second, because solar radiation has very large fluctuation, as overcast and rainy and solar radiation at night is often not enough to the heat that provides enough, the hot water temperature who provides does not reach requirement, and this system can not stable operation in the situation that of overcast and rainy, night or solar radiation deficiency like this; The 3rd, the coefficient of performance of this system is very low is the key that limits this system practice.
Summary of the invention
The object of this invention is to provide and a kind ofly can improve the coefficient of performance of refrigeration machine and the Absorption Refrigerator with integral solar energy heat pump system of operation stability.
For achieving the above object, the technical solution adopted in the present invention is:
Absorption Refrigerator with integral solar energy heat pump system, it mainly consists of absorption system and integral solar energy heat pump system, described integral solar energy heat pump system is to consist of hot water storage tank, condenser, pump, compressor, choke valve, U-shaped evaporation tube and solar thermal collector, described hot water storage tank, pump and condenser form water circulation channel, described compressor, U-shaped evaporation tube, choke valve and condenser form refrigerant circulation passage, and described U-shaped evaporation tube is located in each solar vacuum heat-collecting pipe in solar thermal collector; Described hot water storage tank provides thermal source for absorption system.
In described solar vacuum heat-collecting pipe, be filled with energy storage materials of phase change.
Described energy storage materials of phase change is paraffin.
Described absorption system mainly consists of circulating pump, generator, condenser, cold-producing medium choke valve, evaporimeter, absorber, solution pump, solution heat exchanger and solution choke valve, described hot water storage tank, circulating pump and generator form coal heating and water circulation canal, absorbent-refrigerant solution is subject to after heat medium water heating in generator, cold-producing medium after vaporization enters condenser, and the absorbent-refrigerant solution of the high concentration in generator enters absorber through solution heat exchanger and solution choke valve; Cold-producing medium after vaporization enters inflow absorber after evaporimeter heat absorption by cold-producing medium choke valve after condenser is cooling, and the absorbent-refrigerant solution being absorbed in device absorbs, then through solution heat exchanger, sends generator by solution pump back to.
Described absorbent is LiBr, and described cold-producing medium is H
2o.
Beneficial effect of the present invention: the first, by heat pump, the low-temperature heat quantity (low-grade heat source) that can not directly utilize is converted into high temperature heat source and is used, and adopt compression heat pump can improve significantly efficiency of energy utilization; Second, the solar energy of high peak intensity is stored and supplies with solar radiation and use when low, with solid-liquid phase change latent heat, solar energy is stored, not only solved the problem of amount of stored heat deficiency while utilizing sensible heat accumulation of heat, also overcome the unsettled defect of operation of heat pump efficiency, thereby improved the COP of system and the stability of operation.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Fig. 1 is structured flowchart of the present invention.
In figure: 1, hot water storage tank; 2, condenser; 3, pump; 4, compressor; 5, choke valve; 6, U-shaped evaporation tube; 7, solar thermal collector; 8, solar vacuum heat-collecting pipe; 9, circulating pump; 10, generator; 11, condenser; 12, cold-producing medium choke valve; 13, evaporimeter; 14, absorber; 15, solution pump; 16, solution heat exchanger; 17, solution choke valve.
The specific embodiment
As shown in Figure 1, Absorption Refrigerator with integral solar energy heat pump system, it mainly consists of absorption system and integral solar energy heat pump system, described integral solar energy heat pump system is by hot water storage tank 1, condenser 2, pump 3, compressor 4, choke valve 5, U-shaped evaporation tube 6 and solar thermal collector 7 form, described hot water storage tank 1, pump 3 and condenser 2 form water circulation channel, described compressor 4, condenser 2, choke valve 5 and U-shaped evaporation tube 6 form refrigerant circulation passage, described U-shaped evaporation tube 6 is located in each solar vacuum heat-collecting pipe 8 in solar thermal collector 7, described hot water storage tank 1 provides thermal source for absorption system.
In described solar vacuum heat-collecting pipe 8, be filled with energy storage materials of phase change, what the energy storage materials of phase change in the present embodiment adopted is paraffin.(Phase Change Materials is called for short PCM to described phase-change material.So-called phase-change accumulation energy refers to that material absorbs or releases energy in phase change process. this characteristic has formed the theoretical foundation that phase-changing energy storage material has extensive use just.
Phase-change material during from liquid state to Solid State Transformation, experience the variation of physical state.In these two kinds of phase transition process, material will absorb heat from environment, otherwise, to environment heat release.The energy that can store or discharge when physical state changes is called the heat of transformation, and the temperature range undergoing phase transition is very narrow.When physical state changes, the temperature of material self almost remains unchanged before phase transformation completes.When a large amount of heat of transformations are transferred in environment, produced a wide temperature platform.The appearance of phase-change material, has embodied the prolongation of constant temperature time, and can be with sensible heat and insulating materials when the thermal cycle, stores or discharges sensible heat.Its principle is: phase-change material by energy storage, can extend the Energy Transfer time in the transmitting procedure of heat just as thermal resistance, and thermograde is reduced.
Described absorption system mainly consists of circulating pump 9, generator 10, condenser 11, cold-producing medium choke valve 12, evaporimeter 13, absorber 14, solution pump 15, solution heat exchanger 16 and solution choke valve 17, described hot water storage tank 1, circulating pump 9 and generator 10 form coal heating and water circulation canal, (absorbent is LiBr to absorbent-refrigerant solution, and described cold-producing medium is H
2o) in generator 10, be subject to after heat medium water heating, the water after vaporization enters condenser 11, and the LiBr solution of the high concentration in generator 10 enters absorber 14 through solution heat exchanger 16 and solution choke valve 17; Water after vaporization enters inflow absorber 14 after evaporimeter 13 heat absorption by cold-producing medium choke valve 12 after condenser 11 is cooling, and the LiBr solution that is absorbed the high concentration in device 14 absorbs, then through solution heat exchanger 16, sends generator 10 by solution pump 15 back to.
The above is the preferred embodiment of the present invention; certainly can not limit with this interest field of the present invention; should be understood that; for those skilled in the art; technical scheme of the present invention is modified or is equal to replacement, do not depart from the protection domain of technical solution of the present invention.
Claims (5)
1. the Absorption Refrigerator with integral solar energy heat pump system, it is characterized in that: it mainly consists of absorption system and integral solar energy heat pump system, described integral solar energy heat pump system is by hot water storage tank, condenser, pump, compressor, choke valve, U-shaped evaporation tube and solar thermal collector form, described hot water storage tank, pump and condenser form water circulation channel, described compressor, U-shaped evaporation tube, choke valve and condenser form refrigerant circulation passage, described U-shaped evaporation tube is located in each solar vacuum heat-collecting pipe in solar thermal collector, described hot water storage tank provides thermal source for absorption system.
2. the Absorption Refrigerator with integral solar energy heat pump system according to claim 1, is characterized in that: in described solar vacuum heat-collecting pipe, be filled with energy storage materials of phase change.
3. the Absorption Refrigerator with integral solar energy heat pump system according to claim 2, is characterized in that: described energy storage materials of phase change is paraffin.
4. according to the Absorption Refrigerator with integral solar energy heat pump system described in claims 1 to 3 any one, it is characterized in that: described absorption system is mainly by circulating pump, generator, condenser, cold-producing medium choke valve, evaporimeter, absorber, solution pump, solution heat exchanger and solution choke valve form, described hot water storage tank, circulating pump and generator form coal heating and water circulation canal, absorbent-refrigerant solution is subject to after heat medium water heating in generator, cold-producing medium after vaporization enters condenser, absorbent-the refrigerant solution of the high concentration in generator enters absorber through solution heat exchanger and solution choke valve, cold-producing medium after vaporization enters inflow absorber after evaporimeter heat absorption by cold-producing medium choke valve after condenser is cooling, and the absorbent-refrigerant solution being absorbed in device absorbs, then through solution heat exchanger, sends generator by solution pump back to.
5. the Absorption Refrigerator with integral solar energy heat pump system according to claim 4, is characterized in that: described absorbent is LiBr, and described cold-producing medium is H
2o.
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| CN201410153201.5A CN103954068A (en) | 2014-04-17 | 2014-04-17 | Absorption refrigerating machine with integrated solar assisted heat pump system |
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| CN201410153201.5A CN103954068A (en) | 2014-04-17 | 2014-04-17 | Absorption refrigerating machine with integrated solar assisted heat pump system |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091398A (en) * | 2015-08-29 | 2015-11-25 | 华南理工大学 | Novel lithium bromide absorption refrigeration unit and refrigerating capacity regulating method thereof |
| CN105222444A (en) * | 2015-11-03 | 2016-01-06 | 天津商业大学 | One heats EGR |
| CN105716329A (en) * | 2015-12-31 | 2016-06-29 | 郑州轻工业学院 | Direct-expansion type solar heat pump system |
| CN106594840A (en) * | 2016-12-26 | 2017-04-26 | 大连葆光节能空调设备厂 | Direct-expansion solar heat pump and sewage source heat pump coupling heat supply system |
| CN107036402A (en) * | 2017-05-17 | 2017-08-11 | 东南大学 | A kind of solar energy double effect absorption type heat pump drying system with accumulation of heat |
| CN107062698A (en) * | 2016-12-27 | 2017-08-18 | 大连葆光节能空调设备厂 | A kind of efficient direct expanding solar heating pump couples heating system with water resource heat pump |
| CN107702374A (en) * | 2017-09-11 | 2018-02-16 | 新奥泛能网络科技股份有限公司 | Solar energy accumulated heat system and solar refrigeration system |
| CN107816821A (en) * | 2016-09-14 | 2018-03-20 | 北方工业大学 | Solar adsorption and absorption cascade refrigeration and heating system |
| CN107843026A (en) * | 2017-11-04 | 2018-03-27 | 肇庆高新区国专科技有限公司 | A kind of refrigeration system using solar energy |
| CN108645073A (en) * | 2018-05-03 | 2018-10-12 | 昆明理工大学 | A kind of absorption system of solar energy energy supply |
| CN108917195A (en) * | 2018-07-20 | 2018-11-30 | 广东工业大学 | A kind of phase-change energy storage type solar water heating system |
| CN110243009A (en) * | 2019-06-17 | 2019-09-17 | 西安交通大学 | Absorption heat pump heat accumulation and thermal desorption system and its working method for thermal power plant unit |
| CN111306787A (en) * | 2020-03-17 | 2020-06-19 | 江苏科技大学 | Semi-open type high-temperature heat pump system and working method thereof |
| CN113405276A (en) * | 2021-07-14 | 2021-09-17 | 重庆金康赛力斯新能源汽车设计院有限公司 | Integrated cold source circulation generator and absorption type refrigerating device |
| WO2022094156A1 (en) * | 2020-10-29 | 2022-05-05 | Fafco Incorporated | Thermal solar assisted water heating system |
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| CN101581513A (en) * | 2008-05-16 | 2009-11-18 | 哈尔滨捷通科技开发有限公司 | Special solar refrigeration device for communication base station and refrigeration method thereof |
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| JPS5332939A (en) * | 1976-09-09 | 1978-03-28 | Agency Of Ind Science & Technol | Cooling system in use of solar heat |
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Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091398B (en) * | 2015-08-29 | 2017-10-20 | 华南理工大学 | A kind of refrigerating output control methods of New Type of LiBr Absorption Chiller group |
| CN105091398A (en) * | 2015-08-29 | 2015-11-25 | 华南理工大学 | Novel lithium bromide absorption refrigeration unit and refrigerating capacity regulating method thereof |
| CN105222444A (en) * | 2015-11-03 | 2016-01-06 | 天津商业大学 | One heats EGR |
| CN105716329A (en) * | 2015-12-31 | 2016-06-29 | 郑州轻工业学院 | Direct-expansion type solar heat pump system |
| CN105716329B (en) * | 2015-12-31 | 2018-05-08 | 郑州轻工业学院 | Direct expanding solar heating pump system |
| CN107816821A (en) * | 2016-09-14 | 2018-03-20 | 北方工业大学 | Solar adsorption and absorption cascade refrigeration and heating system |
| CN106594840A (en) * | 2016-12-26 | 2017-04-26 | 大连葆光节能空调设备厂 | Direct-expansion solar heat pump and sewage source heat pump coupling heat supply system |
| CN106594840B (en) * | 2016-12-26 | 2019-08-13 | 大连葆光节能空调设备厂 | A kind of direct expanding solar heating pump couples heating system with sewage source heat pump |
| CN107062698A (en) * | 2016-12-27 | 2017-08-18 | 大连葆光节能空调设备厂 | A kind of efficient direct expanding solar heating pump couples heating system with water resource heat pump |
| CN107062698B (en) * | 2016-12-27 | 2019-07-12 | 大连葆光节能空调设备厂 | A kind of efficient direct expanding solar heating pump couples heating system with water resource heat pump |
| CN107036402A (en) * | 2017-05-17 | 2017-08-11 | 东南大学 | A kind of solar energy double effect absorption type heat pump drying system with accumulation of heat |
| CN107036402B (en) * | 2017-05-17 | 2019-02-01 | 东南大学 | A kind of solar energy double effect absorption type heat pump drying system with accumulation of heat |
| CN107702374A (en) * | 2017-09-11 | 2018-02-16 | 新奥泛能网络科技股份有限公司 | Solar energy accumulated heat system and solar refrigeration system |
| CN107843026A (en) * | 2017-11-04 | 2018-03-27 | 肇庆高新区国专科技有限公司 | A kind of refrigeration system using solar energy |
| CN108645073B (en) * | 2018-05-03 | 2023-12-26 | 昆明理工大学 | Solar energy-powered absorption refrigeration system |
| CN108645073A (en) * | 2018-05-03 | 2018-10-12 | 昆明理工大学 | A kind of absorption system of solar energy energy supply |
| CN108917195A (en) * | 2018-07-20 | 2018-11-30 | 广东工业大学 | A kind of phase-change energy storage type solar water heating system |
| CN108917195B (en) * | 2018-07-20 | 2024-01-05 | 广东工业大学 | Phase-change energy-storage type solar water heating system |
| CN110243009B (en) * | 2019-06-17 | 2020-10-27 | 西安交通大学 | Absorption heat pump heat storage and release system for heat supply unit and working method thereof |
| CN110243009A (en) * | 2019-06-17 | 2019-09-17 | 西安交通大学 | Absorption heat pump heat accumulation and thermal desorption system and its working method for thermal power plant unit |
| CN111306787A (en) * | 2020-03-17 | 2020-06-19 | 江苏科技大学 | Semi-open type high-temperature heat pump system and working method thereof |
| WO2021184869A1 (en) * | 2020-03-17 | 2021-09-23 | 江苏科技大学 | Semi-open high-temperature heat pump system and working method therefor |
| US11353242B2 (en) | 2020-03-17 | 2022-06-07 | Jiangsu University Of Science And Technology | Semi-open high-temperature heat pump system and working method thereof |
| WO2022094156A1 (en) * | 2020-10-29 | 2022-05-05 | Fafco Incorporated | Thermal solar assisted water heating system |
| US11885509B2 (en) | 2020-10-29 | 2024-01-30 | Fafco Incorporated | Thermal solar assisted water heating system |
| CN113405276A (en) * | 2021-07-14 | 2021-09-17 | 重庆金康赛力斯新能源汽车设计院有限公司 | Integrated cold source circulation generator and absorption type refrigerating device |
| CN113405276B (en) * | 2021-07-14 | 2022-07-05 | 重庆金康赛力斯新能源汽车设计院有限公司 | Integrated cold source circulation generator and absorption type refrigerating device |
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