CN105222404A - One utilizes solar energy-air energy heat pump - Google Patents

One utilizes solar energy-air energy heat pump Download PDF

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Publication number
CN105222404A
CN105222404A CN201510636133.2A CN201510636133A CN105222404A CN 105222404 A CN105222404 A CN 105222404A CN 201510636133 A CN201510636133 A CN 201510636133A CN 105222404 A CN105222404 A CN 105222404A
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heat exchanger
control valve
heat pump
heat
solar energy
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CN105222404B (en
Inventor
王林
白朝勤
袁俊飞
周西文
段丽平
袁友胜
马爱华
郝新月
谈莹莹
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Henan University of Science and Technology
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Henan University of Science and Technology
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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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers

Abstract

The invention discloses one and utilize solar energy-air energy heat pump, utilize the heat pump of solar energy-air energy to comprise solar energy heating unit, solar absorption heat pump unit, compression heat pump unit.Utilize Driven by Solar Energy Absorption Cooling System and compression heat pump to circulate to form autocascade cycle and reduce compression type heat pump assembly condensation temperature and save compressor power consumption, solve solar energy by net for air-source heat pump units not enough or to lack under solar energy condition system continuity refrigeration or heat problem.This system realizes the low-grade energy efficiency utilization such as solar energy, has round-the-clock uninterrupted, stable and reliable operation, energy utilization rate advantages of higher, has a extensive future.

Description

One utilizes solar energy-air energy heat pump
Technical field
The present invention relates to a kind of technical field of heat pumps, particularly relate to the Absorption Cooling System of low-grade heat driving and the steam compression heat pump technology of electrical energy drive.
Background technology
According to the development of Energy situation in recent years, energy consumption and environmental problem have become global focus, tap a new source of energy, improve energy utilization rate, realize the inexorable trend that the sustainable development of the energy has been current energy circle.The low-grade energy such as solar energy, geothermal energy is one of important alternative energy source paid close attention to by everybody as widely distributed clean energy resource, and has also become one of the most popular research direction to the recycling of waste heat used heat.
The method realizing freezing and heating has a lot, and electrical energy drive compression heat pump has features such as meeting the cold and hot requirement of user, continuous and steady operation, but consumes a large amount of high-grade energies because of it, does not have energy-saving and emission-reduction significant advantage; Spray type refrigerating can be driven by low-grade heat source and it has the advantages such as structure is simple, cost is low, reliable, but due to injection refrigerating system equipment is huge, efficiency is low and be subject to injector inherent characteristic restriction, jet refrigeration circulation is difficult to obtain lower cryogenic temperature, and these factors limit it and promote in field of Refrigeration and Air-conditioning; Driven by Solar Energy absorption refrigeration exist occurrence temperature require higher, often need that auxiliary heating, unit efficiency are low, intensity of sunshine change presents the shortcomings such as discontinuous operation, limits its propagation and employment.
For response energy-saving and emission-reduction are called, improve energy utilization rate, realize the cascade utilization of the energy, solar ejector refrigeration circulation circulates with compression refrigeration, the autocascade cycle that solar energy absorption type refrigeration circulation and compression-type refrigeration circulation etc. form arises at the historic moment, which raises the utilization rate of low-grade energy, decrease system high-grade energy consumption, but these circulations still do not have can solve unit all weather operations and obtain the problems such as higher refrigerating efficiency, especially when interval appears in solar energy, system worked well cannot be ensured, and, these systems are also difficult to take into account summer cooling and Winter heat supply problem.
Summary of the invention
The object of this invention is to provide a kind of round-the-clock continuous operation and the heat pump type air conditioning system utilizing solar energy and air energy of high energy efficiency ratio.
For achieving the above object, the present invention adopts following technical scheme:
One utilizes solar energy-air energy heat pump to comprise solar energy heating unit, absorption refrigeration unit, compression heat pump unit totally three unit, solar energy heating unit comprises solar thermal collector, heat-exchanger pump, the 3rd control valve, the 4th control valve, solar thermal collector outlet is divided into two branch roads, one branch road is connected with the hot water side feeder connection of the second heat exchanger through the 3rd control valve, another branch road is connected with calorifier inlets through the 4th control valve, the hot water side channel outlet of heater outlet and the second heat exchanger is converged, and is connected with solar thermal collector entrance through heat-exchanger pump, absorption heat pump unit comprises generator, condenser, first throttle parts, condenser/evaporator, absorber, second section stream unit, solution heat exchanger, solution pump, heat exchange coil is provided with in described condenser/evaporator, heater is provided with in described generator, described generator has solution inlet port, taphole and refrigerant vapour outlet, the refrigerant vapour outlet of generator is connected in series condenser successively by pipeline, first throttle parts, condenser/evaporator, absorber, the taphole of absorber is connected with the cryogenic fluid feeder connection of solution heat exchanger, the low temperature side solution channel outlet of solution heat exchanger is connected with the solution inlet of generator through solution pump, the taphole of generator is connected in series the high temperature side passage of solution heat exchanger successively by pipeline, second section stream unit, the spray solution entrance of absorber, compression heat pump unit comprises outdoor air heat exchanger, 3rd throttle part, 4th throttle part, First Heat Exchanger, first four-way change-over valve, second four-way change-over valve, first compressor, second compressor, second heat exchanger, first control valve, second control valve, described second four-way change-over valve arranges four interfaces, the second four-way change-over valve four interface successively with the second compressor air suction mouth, second exhaust outlet of compressor, First Heat Exchanger coolant channel interface, outdoor air heat exchanger coolant channel interface serial connection, another interface of outdoor air heat exchanger coolant channel is connected with another interface of outdoor air heat exchanger coolant channel through the 4th throttle part, first four-way change-over valve arranges four interfaces, the first four-way change-over valve three interface successively with the first compressor air suction mouth, first exhaust outlet of compressor, First Heat Exchanger coolant channel interface serial connection, heat exchange coil in another interface of first four-way change-over valve and condenser/evaporator and the port of the second heat exchanger refrigerant pass also connect, heat exchange coil in condenser/evaporator is connected with the 3rd throttle part through the first control valve, another interface of second heat exchanger refrigerant pass is connected with the 3rd throttle part through the second control valve, and the 3rd throttle part is connected with First Heat Exchanger coolant channel.
Compression heat pump unit, absorption refrigeration unit both can associated working, also can work independently, when absorption refrigeration unit and the work of compression heat pump unit associations, Driven by Solar Energy absorption refrigeration cell operation or solar energy heating second heat exchanger, first exhaust outlet of compressor refrigerant vapor condenses becomes liquid or the second heat exchanger to heat the liquid refrigerant from compression heat pump unit and be vaporizated into refrigerant vapour by heat exchange coil in condenser/evaporator by absorption refrigeration unit, when solar energy is sufficient, by the second compressor, outdoor air heat exchanger, 4th throttle part, First Heat Exchanger, when the air-source compression heat pump that second four-way change-over valve forms does not bear indoor load, by the first compressor, first four-way change-over valve, 3rd throttle part, First Heat Exchanger, second heat exchanger, heat exchange coil, first control valve, second compression heat pump that control valve forms and absorption refrigeration unit form cascade refrigeration and circulate and bear indoor refrigeration duty/humidity load or by the first compressor, first four-way change-over valve, 3rd throttle part, First Heat Exchanger, second heat exchanger, heat exchange coil, first control valve, second compression heat pump that control valve forms absorbs solar energy, bears indoor heat load, when solar energy is inadequate, by the first compressor, first four-way change-over valve, 3rd throttle part, First Heat Exchanger, second heat exchanger, heat exchange coil, first control valve, second control valve forms compression heat pump unit and bears part indoor load, not enough part indoor load is by the second compressor, outdoor air heat exchanger, 4th throttle part, First Heat Exchanger, the air-source compression heat pump that second four-way change-over valve forms is born, when there is no solar energy, by the second compressor, outdoor air heat exchanger, 4th throttle part, First Heat Exchanger, the air-source compression heat pump that second four-way change-over valve forms bears whole indoor load.
Described solar energy-air energy heat pump in a chiller mode or heating mode work, when solar energy heating unit is worked in a chiller mode by the heater-driven absorption refrigeration unit controlled by the 4th control valve, first control valve, the 4th control valve are opened, second control valve, the 3rd control valve are closed, heater provides generator institute calorific requirement, drive Absorption Cooling System unit, to obtain the evaporation of condenser/evaporator high-temperature high-pressure refrigerant steam-condensation and low-temperature low-pressure refrigerant liquid, when solar energy heating unit provide add heat drive absorption refrigeration unit obtain refrigerating capacity deficiency offset form by the first compressor, the first four-way change-over valve, the 3rd throttle part, First Heat Exchanger, the second heat exchanger, heat exchange coil, the first control valve, the second control valve institute the condensation heat that compression heat pump circulates time, the air-source compression heat pump unlatching be made up of the second compressor, outdoor air heat exchanger, the 4th throttle part, First Heat Exchanger, the second four-way change-over valve meets the demand of user side cold, when solar energy heating unit cannot provide heat drive absorption refrigeration cell operation, the air-source compression heat pump be made up of the second compressor, outdoor air heat exchanger, the 4th throttle part, First Heat Exchanger, the second four-way change-over valve provides cold required for user, when solar energy heating unit by the second heat exchanger controlled by the 3rd control valve heat low-temp low-pressure liquid refrigerant vaporize and absorb solar energy work with heating mode time, absorption refrigeration unit quits work, second control valve, the 3rd control valve are opened, first control valve, the 4th control valve are closed, and provide User Part or whole heating load by the first compressor, the first four-way change-over valve, the 3rd throttle part, First Heat Exchanger, the second heat exchanger, heat exchange coil, the first control valve, the second compression heat pump that control valve forms circulation, when solar energy is sufficient, provide user whole heating load by the first compressor, the first four-way change-over valve, the 3rd throttle part, First Heat Exchanger, the second heat exchanger, heat exchange coil, the first control valve, the second compression heat pump that control valve forms circulation, when solar energy is inadequate, by the first compressor, first four-way change-over valve, 3rd throttle part, First Heat Exchanger, second heat exchanger, heat exchange coil, first control valve, second compression heat pump that control valve forms circulation provides User Part heating load, another part heating load is by the second compressor, outdoor air heat exchanger, 4th throttle part, First Heat Exchanger, the air-source compression heat pump that second four-way change-over valve forms provides, when solar energy lacks, by the second compressor, outdoor air heat exchanger, 4th throttle part, First Heat Exchanger, the air-source compression heat pump that second four-way change-over valve forms provides user required all heating loads.
Described absorption heat pump working solution that unit adopts is lithium bromide water solution or ammonia spirit, and described compression heat pump unit refrigeration working medium is HFC class or HC class cold-producing medium.
Described First Heat Exchanger, the second heat exchanger are plate type heat exchanger, double pipe heat exchanger or shell and tube exchanger.
Described first throttle parts, second section stream unit, the 3rd throttle part, the 4th throttle part are U-shaped choke valve, heating power expansion valve, heating power expansion valve or electric expansion valve.
Outstanding feature of the present invention utilizes Driven by Solar Energy Absorption Cooling System and compression heat pump to circulate to form autocascade cycle reduce compression type heat pump assembly condensation temperature and save compressor power consumption, solves solar energy not enough or to lack under solar energy condition system continuity refrigeration or heat problem by net for air-source heat pump units.This system realizes the low-grade energy efficiency utilization such as solar energy, has round-the-clock uninterrupted, stable and reliable operation, energy utilization rate advantages of higher, has a extensive future.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present invention.
Detailed description of the invention
As shown in Figure 1, the embodiment of the heat pump of a kind of all-weather solar electric energy of the present invention associated working, comprises solar energy heating unit, solar absorption heat pump unit, compression heat pump unit totally three unit.In figure, arrow display direction is the forward of fluid flowing.In this embodiment, described solar absorption heat pump unit adopts working medium solution to be lithium bromide water solution or ammonia spirit, and described compression heat pump unit refrigeration working medium is HFC class cold-producing medium or HC class cold-producing medium.
Solar energy heating unit comprises solar thermal collector 1, first circulating pump 18, the 3rd control valve 19c, the 4th control valve 19d, and hot water outlet is divided into two branch roads to be controlled by the 3rd control valve 19c and the 4th control valve 19d respectively.Solar absorption heat pump unit comprises generator 2, water-cooled condenser 3, first throttle parts 5, condenser/evaporator 6, absorber 7, First Heat Exchanger 9, working medium pump 8, second section stream unit 10, the absorber in solar absorption heat pump unit, generator, condenser, evaporimeter, the structure of throttle part and the similar of existing absorption heat pump, described generator 2 is provided with solution inlet port, taphole and steam (vapor) outlet, be provided with for the spiral heater 20 to working medium solution heating wherein in generator 2, coiled pipe cooler 21 is equipped with in described water-cooled condenser 3 and absorber 7, coiled pipe cooler 21 draws from the cooling tower 11 in the cool cycles driven by the second circulating pump 4, and condenser/evaporator 6 has import, outlet and in the heat exchange coil 23 be serially connected with in described compression heat pump unit established, the steam (vapor) outlet of described generator 2 is serially connected with water-cooled condenser 3 successively by pipeline, first throttle parts 5, condenser/evaporator 6, absorber 7, First Heat Exchanger 9, working medium pump 8, the taphole of generator 2 is connected in series First Heat Exchanger 9 successively by pipeline, the spray inlet of access absorber 7 after second section stream unit 10.Compression heat pump unit comprises evaporimeter 14, second compressor 16b, second four-way change-over valve 15b, first compressor 16a, first four-way change-over valve 15a, air-cooled condenser 12, condenser/evaporator 6, 3rd throttle part 13a, 4th throttle part 13b, described condenser/evaporator 6 to circulate the bridge be coupled as absorption heat pump cycle and compression heat pump, the working medium that heat exchange coil 23 flows out from condenser/evaporator 6 is divided into two-way, by the first control valve 19a, second control valve 19b regulable control, one tunnel first control valve exports by the second heat exchanger 17 and the first compressor 16a the porch that working medium meets at condenser/evaporator 6, another Lu Jing tri-choke valve 13a and the 4th choke valve 13b exports working medium and converges and enter evaporimeter 14.
Second heat exchanger 17 has low temperature side passage and the high temperature side passage that mutually can carry out heat exchange, and the outlet of the 3rd control valve 19a is connected with the condensation side of the second heat exchanger 17, starts, do not start during refrigeration mode when system is heating mode; The outlet of described 4th control valve 19d is connected with the entrance of generator 2, starts, do not start during heating mode when system is refrigeration mode.The outlet of the second heat exchanger 17 and the outlet of generator 2 converge the entrance being connected to circulating pump 18.
Evaporimeter 14 outlet is divided into two-way, one tunnel is connected in series the second four-way change-over valve 15b, the second compressor 16b, air-cooled condenser 12, the 4th throttle part 13b, evaporimeter 14 successively through pipeline, and another is connected in series the first compressor 16a, the first four-way change-over valve 15a, condenser/evaporator 6, the 3rd choke valve 13a, evaporimeter 14 successively through pipeline.
Compression heat pump unit comprises evaporimeter 14, second compressor 16b, the second four-way change-over valve 15b, the first compressor 16a, the first four-way change-over valve 15a, air-cooled condenser 12, condenser/evaporator 6, the 3rd choke valve 13a, the 4th choke valve 13b, wherein the second compressor 16b and the first compressor 16a parallel running, condenser/evaporator 6 to circulate the bridge be coupled as absorption heat pump cycle and compression heat pump, ensure that efficient, stable, the round-the-clock continuous operation of system works.
Compression heat pump unit in the above embodiment of the present invention, solar absorption heat pump unit both can associated working, also can work independently, when solar absorption heat pump unit and the work of compression heat pump unit associations, solar absorption heat pump unit is utilized to produce lower or higher temperature working media in condenser/evaporator 6 or the second heat exchanger 17 place, condenser/evaporator 6 bears a part of cold by absorption heat pump unit or a part of heat born by the second heat exchanger 17, enter compression heat pump unit again and realize being recycled of working media cold/heat, thus reach the cascade utilization of cold/heat, improve the effect of Energy Efficiency Ratio, additionally by the second compressor 16b compression type heat pump assembly with by the compression heat pump parallel machine operation of the first compressor 16a supplementing as cold or heat, when load is not born in sufficient, the air-cooled compression heat pump circulation of solar energy, utilize solar absorption heat pump unit to produce lower or higher temperature working media in condenser/evaporator 6 or the second heat exchanger 17 place, bear user required all cold or heat, when compression heat pump unit works alone, compression heat pump unit provides whole cold or heat needed for user by air-cooled compression heat pump circulation.
By the wind-cooling type heat pump of the first driven compressor circulate in solar energy sufficient time do not start, when cold or the shortage of heat directly provided that the Absorption Cooling System of Driven by Solar Energy provides or be zero time start.
The embodiment of the refrigerating and heating method of all-weather solar electric energy associated working heat pump of the present invention, adopts the embodiment of above-mentioned all-weather solar electric energy associated working heat pump work in cooling or heating mode and realize.
When all-weather solar electric energy associated working heat pump works in a chiller mode, solar energy heating unit drives absorption heat pump unit to work in a chiller mode by the spiral heater 20 controlled by the 4th control valve 19d, second control valve 19b, 4th control valve 19d opens, first control valve 19a, 3rd control valve 19c closes, spiral heater 20 is utilized to provide generator 2 calorific requirements, thus drive Absorption Cooling System to run, with the evaporation of the condensation and evaporation side that obtain condenser/evaporator 6 condensation side, user institute chilling requirement is provided with being coupled of compression heat pump unit, when solar energy heating unit drives absorption heat pump unit to obtain refrigerating capacity deficiency by spiral heater 20, air-cooled compression type heat pump assembly is opened, and the second compressor 16b opens with water-cooled compression heat pump parallel machine operation to meet the demand of user side cold, when solar energy heating unit can not provide heat, compression heat pump unit complete independently refrigeration work, compression heat pump unit provides whole cold needed for user by air-cooled condenser 12.When all-weather solar electric energy associated working heat pump works with heating mode, Driven by Solar Energy absorption heat pump quits work, the second heat exchanger 17 heated working fluid that solar energy heating unit passes through to be controlled by the 3rd control valve 19c is with heating mode work, first control valve 19a, the second control valve 19b, the 3rd control valve 19c open, 4th control valve 19d closes, utilize the second heat exchanger 17 warm operation fluid, for the Effec-tive Function of compression heat pump circulation provides condition; When solar source is inadequate, air-cooled compression heat pump is opened and parallel running, meets consumers' demand with additional heat; When solar energy heating unit can not provide heat, compression heat pump unit complete independently heats work, and compression heat pump unit provides net quantity of heat needed for user by air-cooled condenser 12.

Claims (6)

1. utilize a solar energy-air energy heat pump, it is characterized in that: comprise solar energy heating unit, absorption refrigeration unit, compression heat pump unit totally three unit, solar energy heating unit comprises solar thermal collector, heat-exchanger pump, the 3rd control valve, the 4th control valve, solar thermal collector outlet is divided into two branch roads, one branch road is connected with the hot water side feeder connection of the second heat exchanger through the 3rd control valve, another branch road is connected with calorifier inlets through the 4th control valve, the hot water side channel outlet of heater outlet and the second heat exchanger is converged, and is connected with solar thermal collector entrance through heat-exchanger pump, absorption heat pump unit comprises generator, condenser, first throttle parts, condenser/evaporator, absorber, second section stream unit, solution heat exchanger, solution pump, heat exchange coil is provided with in described condenser/evaporator, heater is provided with in described generator, described generator has solution inlet port, taphole and refrigerant vapour outlet, the refrigerant vapour outlet of generator is connected in series condenser successively by pipeline, first throttle parts, condenser/evaporator, absorber, the taphole of absorber is connected with the cryogenic fluid feeder connection of solution heat exchanger, the low temperature side solution channel outlet of solution heat exchanger is connected with the solution inlet of generator through solution pump, the taphole of generator is connected in series the high temperature side passage of solution heat exchanger successively by pipeline, second section stream unit, the spray solution entrance of absorber, compression heat pump unit comprises outdoor air heat exchanger, 3rd throttle part, 4th throttle part, First Heat Exchanger, first four-way change-over valve, second four-way change-over valve, first compressor, second compressor, second heat exchanger, first control valve, second control valve, described second four-way change-over valve arranges four interfaces, the second four-way change-over valve four interface successively with the second compressor air suction mouth, second exhaust outlet of compressor, First Heat Exchanger coolant channel interface, outdoor air heat exchanger coolant channel interface serial connection, another interface of outdoor air heat exchanger coolant channel is connected with another interface of outdoor air heat exchanger coolant channel through the 4th throttle part, first four-way change-over valve arranges four interfaces, the first four-way change-over valve three interface successively with the first compressor air suction mouth, first exhaust outlet of compressor, First Heat Exchanger coolant channel interface serial connection, heat exchange coil in another interface of first four-way change-over valve and condenser/evaporator and the port of the second heat exchanger refrigerant pass also connect, heat exchange coil in condenser/evaporator is connected with the 3rd throttle part through the first control valve, another interface of second heat exchanger refrigerant pass is connected with the 3rd throttle part through the second control valve, and the 3rd throttle part is connected with First Heat Exchanger coolant channel.
2. according to claim 1ly utilize solar energy-air energy heat pump, it is characterized in that: compression heat pump unit, absorption refrigeration unit both can associated working, also can work independently, when absorption refrigeration unit and the work of compression heat pump unit associations, Driven by Solar Energy absorption refrigeration cell operation or solar energy heating second heat exchanger, first exhaust outlet of compressor refrigerant vapor condenses becomes liquid or the second heat exchanger to heat the liquid refrigerant from compression heat pump unit and be vaporizated into refrigerant vapour by heat exchange coil in condenser/evaporator by absorption refrigeration unit, when solar energy is sufficient, by the second compressor, outdoor air heat exchanger, 4th throttle part, First Heat Exchanger, when the air-source compression heat pump that second four-way change-over valve forms does not bear indoor load, by the first compressor, first four-way change-over valve, 3rd throttle part, First Heat Exchanger, second heat exchanger, heat exchange coil, first control valve, second compression heat pump that control valve forms and absorption refrigeration unit form cascade refrigeration and circulate and bear indoor refrigeration duty/humidity load or by the first compressor, first four-way change-over valve, 3rd throttle part, First Heat Exchanger, second heat exchanger, heat exchange coil, first control valve, second compression heat pump that control valve forms absorbs solar energy, bears indoor heat load, when solar energy is inadequate, by the first compressor, first four-way change-over valve, 3rd throttle part, First Heat Exchanger, second heat exchanger, heat exchange coil, first control valve, second control valve forms compression heat pump unit and bears part indoor load, not enough part indoor load is by the second compressor, outdoor air heat exchanger, 4th throttle part, First Heat Exchanger, the air-source compression heat pump that second four-way change-over valve forms is born, when there is no solar energy, by the second compressor, outdoor air heat exchanger, 4th throttle part, First Heat Exchanger, the air-source compression heat pump that second four-way change-over valve forms bears whole indoor load.
3. according to claim 1 and 2ly utilize solar energy-air energy heat pump, it is characterized in that: described solar energy-air energy heat pump in a chiller mode or heating mode work, when solar energy heating unit is worked in a chiller mode by the heater-driven absorption refrigeration unit controlled by the 4th control valve, first control valve, the 4th control valve are opened, second control valve, the 3rd control valve are closed, heater provides generator institute calorific requirement, drive Absorption Cooling System unit, to obtain the evaporation of condenser/evaporator high-temperature high-pressure refrigerant steam-condensation and low-temperature low-pressure refrigerant liquid, when solar energy heating unit provide add heat drive absorption refrigeration unit obtain refrigerating capacity deficiency offset form by the first compressor, the first four-way change-over valve, the 3rd throttle part, First Heat Exchanger, the second heat exchanger, heat exchange coil, the first control valve, the second control valve institute the condensation heat that compression heat pump circulates time, the air-source compression heat pump unlatching be made up of the second compressor, outdoor air heat exchanger, the 4th throttle part, First Heat Exchanger, the second four-way change-over valve meets the demand of user side cold, when solar energy heating unit cannot provide heat drive absorption refrigeration cell operation, the air-source compression heat pump be made up of the second compressor, outdoor air heat exchanger, the 4th throttle part, First Heat Exchanger, the second four-way change-over valve provides cold required for user, when solar energy heating unit by the second heat exchanger controlled by the 3rd control valve heat low-temp low-pressure liquid refrigerant vaporize and absorb solar energy work with heating mode time, absorption refrigeration unit quits work, second control valve, the 3rd control valve are opened, first control valve, the 4th control valve are closed, and provide User Part or whole heating load by the first compressor, the first four-way change-over valve, the 3rd throttle part, First Heat Exchanger, the second heat exchanger, heat exchange coil, the first control valve, the second compression heat pump that control valve forms circulation, when solar energy is sufficient, provide user whole heating load by the first compressor, the first four-way change-over valve, the 3rd throttle part, First Heat Exchanger, the second heat exchanger, heat exchange coil, the first control valve, the second compression heat pump that control valve forms circulation, when solar energy is inadequate, by the first compressor, first four-way change-over valve, 3rd throttle part, First Heat Exchanger, second heat exchanger, heat exchange coil, first control valve, second compression heat pump that control valve forms circulation provides User Part heating load, another part heating load is by the second compressor, outdoor air heat exchanger, 4th throttle part, First Heat Exchanger, the air-source compression heat pump that second four-way change-over valve forms provides, when solar energy lacks, by the second compressor, outdoor air heat exchanger, 4th throttle part, First Heat Exchanger, the air-source compression heat pump that second four-way change-over valve forms provides user required all heating loads.
4. according to claim 1ly utilize solar energy-air energy heat pump, it is characterized in that: described absorption heat pump working solution that unit adopts is lithium bromide water solution or ammonia spirit, described compression heat pump unit refrigeration working medium is HFC class or HC class cold-producing medium.
5. according to claim 1ly utilize solar energy-air energy heat pump, it is characterized in that: described First Heat Exchanger, the second heat exchanger are plate type heat exchanger, double pipe heat exchanger or shell and tube exchanger.
6. according to claim 1ly utilize solar energy-air energy heat pump, it is characterized in that: described first throttle parts, second section stream unit, the 3rd throttle part, the 4th throttle part are U-shaped choke valve, heating power expansion valve, heating power expansion valve or electric expansion valve.
CN201510636133.2A 2015-09-30 2015-09-30 It is a kind of to utilize solar energy-air energy heat pump system Active CN105222404B (en)

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CN108224606A (en) * 2017-12-22 2018-06-29 江苏科技大学 A kind of heat pump humidifier and method of work
CN108332446A (en) * 2018-02-08 2018-07-27 华南理工大学 A kind of low-grade solar cold thermoelectricity combined supply system and its operation method
CN109737615A (en) * 2018-12-28 2019-05-10 上海理工大学 The cold polygenerations systeme of small-sized household solar generator
CN110486954A (en) * 2019-09-20 2019-11-22 河南科技大学 A kind of Weatherproof multifunctional solar air source heat pumps system
CN110553422A (en) * 2019-08-07 2019-12-10 珠海格力电器股份有限公司 Composite system of PVT coupled air source and control method
CN113124584A (en) * 2019-12-30 2021-07-16 阿里巴巴集团控股有限公司 Refrigeration system, control method and data center

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