CN105526732A - Solar energy assisted second-class absorption heat pump unit system - Google Patents

Solar energy assisted second-class absorption heat pump unit system Download PDF

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Publication number
CN105526732A
CN105526732A CN201410521290.4A CN201410521290A CN105526732A CN 105526732 A CN105526732 A CN 105526732A CN 201410521290 A CN201410521290 A CN 201410521290A CN 105526732 A CN105526732 A CN 105526732A
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China
Prior art keywords
valve
heat
absorption
heat pump
temperature
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Pending
Application number
CN201410521290.4A
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Chinese (zh)
Inventor
何萍
张庆焘
撒卫华
陈旭
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QINGDAO HENGLYU ENERGY SAVING TECHNOLOGY Co Ltd
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QINGDAO HENGLYU ENERGY SAVING TECHNOLOGY Co Ltd
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Priority to CN201410521290.4A priority Critical patent/CN105526732A/en
Publication of CN105526732A publication Critical patent/CN105526732A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62Absorption based systems

Abstract

The invention discloses a solar energy assisted second-class absorption heat pump unit system and belongs to the technical field of heat supply. The system is mainly formed by a solar heat collector, a heat accumulator, a circulating pump, a valve, a heat exchanger, a heating boiler, a second-class absorption heat pump and a pipeline. Heat sources of industrial waste water and technological waste heat can be utilized, and solar energy can also be sufficiently utilized. If the temperature of hot water coming out from an absorber cannot reach the requirement of users, a heating boiler is used for assisted heating. The intermediate-temperature heat source of the heat pump unit system can be the industrial waste water and the technological waste heat. Heat source water can sequentially pass through an evaporator and a generator in series and can also be respectively led to the evaporator and the generator in parallel. According to the invention, hot water of a higher grade can be produced by sufficiently utilizing the heat sources at different grades, and by combination of source solar energy and industrial waste heat source, the relation among the solar energy, the second-class absorption heat pump and the heating boiler can be coordinated, and energy conservation and emission reduction can be achieved practically on the basis of meeting heat consumers.

Description

A kind of solar energy auxiliary type second-kind absorption-type heat pump machine set system
Technical field
The present invention relates to a kind of solar energy auxiliary type second-kind absorption-type heat pump machine set system, particularly relate to a kind of solar energy that uses as the second-kind absorption-type heat pump unit of auxiliary thermal source, belong to heat supply process field.
Background technology
Environment and energy problem are the significant problems that social development faces always.Along with the appearance of energy crisis in the development of science and technology and worldwide; when producing and the consumption energy in life is increasing; single fossil energy structure can not meet environment and energy demand, and the demand of development unconventional energy resource is very urgent.Wherein the range of application of solar energy is comparatively wide, and achieves practical function after promoting.The characteristic of second-kind absorption-type heat pump therefrom draws the heat energy of some in temperature-heat-source; be transported on high temperature heat source or heated object after conversion; compensate for the deficiency of ordinary solar heat collector on heat-collecting temperature; the Application and Development of absorption heat pump is to economize energy resource; improve the effective rate of utilization of the energy, protection of the environment has very positive meaning.
Domestic many scholars have done large quantifier elimination to lithium bromide second-kind absorption-type heat pump machine set system, the structure, circulation etc. of lithium bromide second-kind absorption-type heat pump unit are proposed to the idea of a lot of original property.Patent about solar energy process auxiliary drive second-kind absorption-type heat pump does not retrieve, also rarely have the research of solar energy lithium bromide second-kind absorption-type heat pump and publish, the people such as Ling Chen, Chen Zhenqian of Southeast China University propose a kind of system of Driven by Solar Energy second class absorption heat pump, and numerical analysis has been carried out to system, demonstrate the feasibility of Driven by Solar Energy second-kind absorption-type heat pump.But the technology that above-mentioned bibliography relates to has certain limitation: solar energy system combines with second-kind heat pump system by (1), only considered solar energy and drive as main heat source, and solar energy is not proved as complementary thermal source.(2) unstable characteristic of solar energy as main heat source has been taken into full account, although increase auxiliary thermal source before driving heat pump, because the thermal performance of second class absorption heat pump increases the waste that auxiliary thermal source causes the part energy before driving.Auxiliary thermal source energy-saving effect is increased more remarkable after driving heat source.
Summary of the invention
For solving the problem, the invention provides a kind of solar energy auxiliary type second-kind absorption-type heat pump machine set system, not only can utilize the thermal source such as industrial wastewater, technique used heat, can also solar energy be made full use of.
A kind of solar energy auxiliary type second-kind absorption-type heat pump machine set system is made up of solar thermal collector, storage heater, circulating pump I, circulating pump II, valve V7, valve V1, valve V2, valve V3, valve V4, valve V5, valve V6, heat exchanger, heating boiler, second-kind absorption-type heat pump and connecting pipe.Solar thermal collector, storage heater, circulating pump I are connected successively by pipeline, form a closed circulation.Accumulator outlet is connected with circulating pump II entrance, and circulating pump II outlet is connected with valve V7, and valve V7 is connected with valve V1 and V2 respectively; Valve V1 connects heat exchanger entrance by pipeline, and heat exchanger exit is connected with the evaporator inlet of second-kind absorption-type heat pump; Valve V2 is connected with the evaporator inlet of second-kind absorption-type heat pump after being connected with valve V3 by pipeline; Hot water inlet is connected with the absorber entrance of second-kind absorption-type heat pump after connecting heat exchanger by pipeline, absorber outlet is connected with hot-water outlet conduits after heating boiler, generator exports is connected with valve V5, V6 respectively, valve V6 is connected with accumulator inlet, and valve V5 leads to the outlet of middle temperature-heat-source; Middle temperature-heat-source entrance leads to valve V2, valve V3 after connecting valve V4 respectively.
A kind of solar energy auxiliary type of the present invention second-kind absorption-type heat pump machine set system, takes full advantage of different grade, the multi-form energy.When central temperature-heat-source coolant-temperature gage is higher than hot water inlet's temperature, open valve V4, valve V2, valve V5, valve V1, valve-off V3, valve V6, valve V7.Middle temperature-heat-source current enter heat exchanger after valve V4, valve V2, valve V1, with the evaporimeter, the generator that enter second-kind absorption-type heat pump after the hot water heat exchange flowing through heat exchanger successively, driving absorption heat pump operates, and eventually passes and flows through valve V5, discharges machine set system.When central temperature-heat-source coolant-temperature gage is lower than hot water inlet's temperature, open valve V4, valve V3, valve V5, valve-off V1, valve V2, valve V6, valve V7, middle temperature-heat-source current enter evaporimeter, the generator of second-kind absorption-type heat pump successively after valve V4, valve V3, driving absorption heat pump operates, eventually pass and flow through valve V5, discharge machine set system.
When medium temperature in storage heater is higher than hot water inlet's temperature and higher than middle temperature-heat-source inlet temperature, open valve V1, valve V7, valve V6, valve-off V2, valve V3, valve V4, valve V5, high-temperature heat accumulation medium in storage heater is under the effect of circulating pump II, first hot water heating hot water inlet entered through heat exchanger heats up, then the evaporimeter of second-kind absorption-type heat pump unit, generator is entered, in evaporimeter, generator, after heat release, temperature reduces, finally get back to storage heater, complete heat-source Cycles loop.When solar energy heating temperature is lower than hot water inlet's temperature but higher than middle temperature-heat-source inlet temperature, valve-off V1, open valve V2, V3, heat storage medium in storage heater enters evaporimeter, the generator of second-kind absorption-type heat pump under circulating pump II effect through valve V2, V3, in evaporimeter, generator, after heat release, temperature reduces, finally get back to storage heater, complete heat-source Cycles loop.
If from absorber hot water temperature out do not reach heat user require time, carry out auxiliary heating by heating boiler.The middle temperature-heat-source of this heat pump set system can be industrial wastewater, process recycled water.Middle temperature-heat-source and heat storage medium can be connected successively by evaporimeter, generator, also parallel connection can pass into evaporimeter, generator respectively.
The invention has the beneficial effects as follows, different low-grade thermal source can be made full use of and produce more high-grade hot water, clean energy resource solar energy is combined with Industry Waste thermal source, control the relation coordinating solar energy, second-kind absorption-type heat pump, heating boiler, energy-saving and emission-reduction are accomplished conscientiously in the basis meeting heat user.
Accompanying drawing explanation
Accompanying drawing is a kind of principle schematic of solar energy auxiliary type second-kind absorption-type heat pump machine set system.
In figure: 1. solar thermal collector, 2. storage heater, 3. circulating pump I, 4. circulating pump II, 5. valve V7,6. valve V1,7. valve V2,8. valve V3,9. valve V4,10. valve V5,11. valve V6,12. heat exchangers, 13. heating boilers, 14. second-kind absorption-type heat pumps.
Detailed description of the invention
Below in conjunction with accompanying drawing the present invention is further described concrete implementation method:
With reference to shown in accompanying drawing, a kind of solar energy auxiliary type second-kind absorption-type heat pump machine set system is made up of solar thermal collector (1), storage heater (2), circulating pump I (3), circulating pump II (4), valve V7 (5), valve V1 (6), valve V2 (7), valve V3 (8), valve V4 (9), valve V5 (10), valve V6 (11), heat exchanger (12), heating boiler (13), second-kind absorption-type heat pump (14) and connecting pipe.Solar thermal collector (1), storage heater (2), circulating pump I (3) are connected successively by pipeline, form a closed circulation.Storage heater (2) outlet is connected with circulating pump II (4) entrance, circulating pump II (4) outlet is connected with valve V7 (5), and valve V7 (5) is connected with valve V1 (6) and V2 (7) respectively; Valve V1 (6) connects heat exchanger (12) entrance by pipeline, and heat exchanger (12) outlet is connected with the evaporator inlet of second-kind absorption-type heat pump (14); Valve V2 (7) is connected with the evaporator inlet of second-kind absorption-type heat pump (14) after being connected with valve V3 (8) by pipeline; Hot water inlet connects heat exchanger (12) by pipeline and is connected with the absorber entrance of second-kind absorption-type heat pump (14) afterwards, and absorber outlet is connected with hot-water outlet conduits after heating boiler (13); Generator exports is connected with valve V5 (10), V6 (11) respectively, and valve V6 (11) is connected with storage heater (2) entrance, and valve V5 (10) leads to the outlet of middle temperature-heat-source; Middle temperature-heat-source entrance leads to valve V2 (7), valve V3 (8) after connecting valve V4 (9) respectively.
Operation principle of the present invention and the course of work are:
When central temperature-heat-source coolant-temperature gage is higher than hot water inlet's temperature, open valve V4 (9), valve V2 (7), valve V5 (10), valve V1 (6), valve-off V3 (8), valve V6 (11), valve V7 (5).Middle temperature-heat-source current enter heat exchanger (12) after valve V4 (9), valve V2 (7), valve V1 (6), with the evaporimeter, the generator that enter second-kind absorption-type heat pump (14) after the hot water heat exchange flowing through heat exchanger (12) successively, drive second-kind absorption-type heat pump (14) running, eventually pass and flow through valve V5 (10), discharge machine set system.When central temperature-heat-source coolant-temperature gage is lower than hot water inlet's temperature, open valve V4 (9), valve V3 (8), valve V5 (10), valve-off V1 (6), valve V2 (7), valve V6 (11), valve V7 (5), middle temperature-heat-source current enter evaporimeter, the generator of second-kind absorption-type heat pump (14) successively after valve V4 (9), valve V3 (8), driving heat pump operates, eventually pass and flow through valve V5 (10), discharge system.
When medium temperature in storage heater (2) is higher than hot water inlet's temperature and higher than middle temperature-heat-source inlet temperature, open valve V1 (6), valve V7 (5), valve V6 (11), valve-off V2 (7), valve V3 (8), valve V4 (9), valve V5 (10), high-temperature heat accumulation medium in storage heater (2) is under the effect of circulating pump II (4), first hot water heating hot water inlet entered through heat exchanger (12) heats up, then the evaporimeter of second-kind absorption-type heat pump (14) is entered, generator, at evaporimeter, in generator, after heat release, temperature reduces, finally get back to storage heater (2), complete heat-source Cycles loop.When storage heater (2) temperature is lower than hot water inlet's temperature but higher than middle temperature-heat-source inlet temperature, valve-off V1 (6), open valve V2 (7), valve V3 (8), heat storage medium in storage heater (2) enters evaporimeter, the generator of second-kind absorption-type heat pump (14) under circulating pump II (4) effect through valve V2 (7), valve V3 (8), in evaporimeter, generator, after heat release, temperature reduces, finally get back to storage heater (2), complete heat-source Cycles loop.

Claims (4)

1. a solar energy auxiliary type second-kind absorption-type heat pump machine set system is by solar thermal collector (1), storage heater (2), circulating pump I (3), circulating pump II (4), valve V7 (5), valve V1 (6), valve V2 (7), valve V3 (8), valve V4 (9), valve V5 (10), valve V6 (11), heat exchanger (12), heating boiler (13), second-kind absorption-type heat pump (14) and connecting pipe composition, it is characterized in that: solar thermal collector (1), storage heater (2), circulating pump I (3) is connected successively by pipeline, form a closed circulation, storage heater (2) outlet is connected with circulating pump II (4) entrance, circulating pump II (4) outlet is connected with valve V7 (5), and valve V7 (5) is connected with valve V1 (6) and V2 (7) respectively, valve V1 (6) connects heat exchanger (12) entrance by pipeline, and heat exchanger (12) outlet is connected with the evaporator inlet of second-kind absorption-type heat pump (14), valve V2 (7) is connected with the evaporator inlet of second-kind absorption-type heat pump (14) after being connected with valve V3 (8) by pipeline, hot water inlet connects heat exchanger (12) by pipeline and is connected with the absorber entrance of second-kind absorption-type heat pump (14) afterwards, absorber outlet is connected with hot-water outlet conduits after heating boiler (13), generator exports is connected with valve V5 (10), V6 (11) respectively, valve V6 (11) is connected with storage heater (2) entrance, and valve V5 (10) leads to the outlet of middle temperature-heat-source, middle temperature-heat-source entrance leads to valve V2 (7), valve V3 (8) after connecting valve V4 (9) respectively.
2. a kind of solar energy auxiliary type second-kind absorption-type heat pump machine set system according to claim 1, is characterized in that: if from absorber hot water temperature out do not reach heat user require time, carry out auxiliary heating by heating boiler.
3. a kind of solar energy auxiliary type second-kind absorption-type heat pump machine set system according to claim 1, is characterized in that: the middle temperature-heat-source of this heat pump set system can be industrial wastewater, process recycled water.
4. a kind of solar energy auxiliary type second-kind absorption-type heat pump machine set system according to claim 1, is characterized in that: middle temperature-heat-source and heat storage medium can be connected successively by evaporimeter, generator, also parallel connection can pass into evaporimeter, generator respectively.
CN201410521290.4A 2014-10-04 2014-10-04 Solar energy assisted second-class absorption heat pump unit system Pending CN105526732A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN108344187A (en) * 2017-12-22 2018-07-31 湖北工业大学 Optically focused based on absorption heat pump-light splitting type photovoltaic/photothermal integration system
CN108930995A (en) * 2018-08-01 2018-12-04 东北大学 A kind of central heating system of solar energy and low-grade industrial exhaust heat united heat

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN108344187A (en) * 2017-12-22 2018-07-31 湖北工业大学 Optically focused based on absorption heat pump-light splitting type photovoltaic/photothermal integration system
CN108930995A (en) * 2018-08-01 2018-12-04 东北大学 A kind of central heating system of solar energy and low-grade industrial exhaust heat united heat
CN108930995B (en) * 2018-08-01 2020-04-14 东北大学 Central heating system for combined heating of solar energy and low-grade industrial waste heat

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Application publication date: 20160427

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