CN204648741U - Solar energy jetting sprays with photovoltaic steam and compresses associating heat pump - Google Patents
Solar energy jetting sprays with photovoltaic steam and compresses associating heat pump Download PDFInfo
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- CN204648741U CN204648741U CN201520288855.9U CN201520288855U CN204648741U CN 204648741 U CN204648741 U CN 204648741U CN 201520288855 U CN201520288855 U CN 201520288855U CN 204648741 U CN204648741 U CN 204648741U
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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]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The utility model discloses a kind of solar energy jetting and combine heat pump with photovoltaic steam-jet compression, this system is made up of solar energy jetting system and photovoltaic steam-jet compression system, solar energy jetting system is made up of collecting system and spraying system, and photovoltaic steam-jet compression system is made up of steam-jet compression system, the steam compressed accessory system of air energy twin-stage and solar photovoltaic generation system.Cooling condition, when not collecting solar energy, system uses the steam compressed accessory system circularly cooling of air energy twin-stage; When the solar energy collected is not enough, system use cascade cycle and the steam compressed accessory system of air energy twin-stage circulate and freeze simultaneously; When the solar energy collected meets refrigeration demand, system uses cascade cycle refrigeration.Heating condition, system uses the steam compressed accessory system of air energy twin-stage to utilize solar energy or air to circulate and heats.Under all situations, electricity provides by solar photovoltaic generation system.
Description
Technical field
The utility model relates to a kind of heat pump, in particular, relates to a kind of solar energy jetting and combines heat pump with photovoltaic steam-jet compression.
Background technology
Solar energy be a kind of inexhaustible, nexhaustible and do not have pollute ultra-clean regenerative resource., global warming higher in current oil price aggravates, this regenerative resource of development and utilization meaning is very great.The world's solar energy conference to hold for 1999 just has expert to think, the development in science and technology of contemporary world solar energy has two large basic trends, and one is that photoelectricity is combined with photo-thermal, and two is Cooling and Heat Source being combined as building of solar energy and building.
At present Application of Solar Energy is mainly contained two kinds of modes in air-conditioner, one utilizes photovoltaic module to convert solar energy into electrical energy, for steam compression type air-conditioner provides electric energy, in this case the operational efficiency of air-conditioner does not significantly improve, and the area of the more battery pack of electric energy of utilization is larger; Another kind utilizes heat collector to convert solar energy into heat energy, and drive the refrigeration plant of the thermal drivers such as absorption and sorption formula to freeze, the refrigerating operaton efficiency of air-conditioner is low in this case, and the heat collector area needed is large.Therefore need to improve the Solar use pattern of above-mentioned two kinds of air-conditionings, improve the whole effect of system.
Utility model content
To be solved in the utility model is the existing separately technical problem of above-mentioned existing vapor compression refrigeration system and solar ejector refrigeration system, provides a kind of and can run continuously, makes full use of solar energy and energy-efficient solar energy jetting combines heat pump with photovoltaic steam-jet compression.This system utilizes solar ejector refrigeration to provide low-temperature receiver for solar energy power generating steam-jet compression circulates, improve solar ejector refrigeration evaporating temperature, both the problem that ejector refrigeration heat utilization efficiency is low had been solved, reduce the condensation temperature of solar energy power generating steam-jet compression circulation simultaneously, solve again when use merely photovoltaic, power consumption greatly, the inefficient problem of compression refrigeration.In addition, compression refrigeration adopts the form of injector, improves compression efficiency further, particularly to natural refrigerant CO
2, can CO be reduced
2operation high pressure, change subcritical cycle into from original trans critical cycle, greatly reduce power consumption.
This system can provide different operating schemes according to different solar energy loads: when not collecting enough solar heats, and system can only make the steam compressed accessory system refrigeration of air energy twin-stage; When the solar energy collected only meets part refrigeration demand, system can use solar energy jetting system and photovoltaic steam-jet compression system to freeze simultaneously; When the solar energy collected meets refrigeration demand, system only uses cascade cycle to freeze; Electricity under all situations provides by solar photovoltaic generation system.
Realize system continuously, under the prerequisite of stable and Effec-tive Function, according to temperature in fluid reservoir and accumulator electric-quantity, by switching solar energy jetting system, photovoltaic steam-jet compression system cascade cycle refrigeration and the steam compressed accessory system of air energy twin-stage wherein, reach the effect of energy-saving run.
In order to solve the problems of the technologies described above, the utility model is achieved by following technical scheme:
A kind of solar energy jetting combines heat pump with photovoltaic steam-jet compression, and this system is made up of solar energy jetting system and photovoltaic steam-jet compression system:
Described solar energy jetting system is made up of collecting system and spraying system, described collecting system is made up of solar thermal collector, fluid reservoir and generator, the outlet of described solar thermal collector is connected with the entrance of fluid reservoir, the outlet of described fluid reservoir is connected with the collecting system side entrance of generator, and the collecting system side outlet of described generator is connected with the entrance of solar thermal collector, described spraying system is by the first injector, condenser, first magnetic valve, first expansion valve, First Heat Exchanger and working medium pump composition, the spraying system side outlet of described generator is connected with the high pressure entry of the first injector, the outlet of described first injector is connected with condenser inlet, described condensator outlet is connected with the first electromagnetic valve entrance, described first electromagnetic valve outlet is connected with the first expansion valve inlet and working medium pump entrance respectively, described first expansion valve outlet is connected with the spraying system side entrance of First Heat Exchanger, the spraying system side outlet of described First Heat Exchanger is connected with the low-pressure inlet of the first injector, described working medium delivery side of pump is connected with the spraying system side entrance of generator,
Described photovoltaic steam-jet compression system is by steam-jet compression system, the steam compressed accessory system of air energy twin-stage and solar photovoltaic generation system composition, described steam-jet compression system and described solar energy jetting System's composition cascade cycle system, described steam-jet compression system is by First Heat Exchanger, second injector, gas-liquid separator, second expansion valve, second heat exchanger, first compressor, first four-way change-over valve, second magnetic valve, second four-way change-over valve, 4th magnetic valve, first triple valve and the second triple valve composition, wherein the first four-way change-over valve left port is communicated with lower port or upper port, right output port is communicated with upper port or lower port, wherein the second four-way change-over valve left port is communicated with upper port or lower port, right output port is communicated with lower port or upper port, wherein the upper port of the first triple valve is communicated with lower port or right output port, wherein the left port of the second triple valve is communicated with right output port or lower port, the outlet of the steam-jet compression system side of described First Heat Exchanger is connected with the upper port of the second four-way change-over valve, the right output port of described second four-way change-over valve is connected with the high pressure entry of the second injector, the described outlet of the second injector is connected with the entrance of gas-liquid separator, the liquid outlet of described gas-liquid separator is connected with the entrance of the second expansion valve, the outlet of described second expansion valve is connected with the left port of the second triple valve, the right output port of described second triple valve is connected with the upper port of the 6th magnetic valve and the right output port of the first four-way change-over valve, the lower port of the first four-way change-over valve is connected with the upper port of the first triple valve, the lower port of described first triple valve is connected with the left port of the 3rd triple valve and the entrance of the second heat exchanger, the outlet of described second heat exchanger is connected with the lower port of the 4th magnetic valve, the upper port of described 4th magnetic valve is connected with the lower port of the second four-way change-over valve, the left port of described second four-way change-over valve is connected with the low-pressure inlet of the second injector, the gas vent of gas-liquid separator is connected with the entrance of compressor, the outlet of described first compressor is connected with the left port of the first four-way change-over valve, the upper port of described first four-way change-over valve is connected with the right output port of the second magnetic valve, the described left port of the second magnetic valve is connected with the left port of First Heat Exchanger,
The steam compressed accessory system of described air energy twin-stage is by the second heat exchanger, first compressor, first four-way change-over valve, 3rd magnetic valve, second compressor, 3rd heat exchanger, 3rd expansion valve, 5th magnetic valve, 6th magnetic valve and the 3rd triple valve composition, wherein the upper port of the 3rd triple valve is communicated with lower port or left port, the logical valve upper port of described first four-way commutation is connected with the 3rd magnetic valve upper port, described 3rd magnetic valve lower port is connected with the entrance of the second compressor, the outlet of described second compressor is connected with the upper port of the 3rd triple valve, the lower port of the 3rd triple valve is connected with the right output port of the 3rd heat exchanger and the 6th magnetic valve lower port, 6th magnetic valve upper port is connected with the right output port of the second triple valve with the right output port of the first four-way change-over valve respectively, the left port of described 3rd heat exchanger is connected with the right output port of the 3rd expansion valve and the lower port of the second triple valve, the left port of described 3rd expansion valve is connected with the right output port of the second heat exchanger, the left port of described second heat exchanger is connected with the lower port of the 5th magnetic valve, and the upper port of described 5th magnetic valve is connected with the entrance of the first compressor,
Described solar photovoltaic generation system is made up of solar panel, wind generator system, controller, battery, inverter, the outlet of described solar panel is all connected with the entrance of controller with the outlet of wind generator system, the outlet of described controller is connected with battery and inverter respectively, and described inverter is connected respectively with load working medium pump, the first compressor and the second compressor.
Wherein, described condenser, described second heat exchanger, described 3rd heat exchanger are air-cooled heat exchanger or water-cooled heat exchanger.
Wherein, described generator, described condenser, described second heat exchanger, described 3rd heat exchanger are micro-channel heat exchanger.
Wherein, described First Heat Exchanger is double pipe heat exchanger, plate type heat exchanger or micro-channel heat exchanger.
Wherein, the working medium that described solar energy jetting systemic circulation adopts is 1. chloro-3,3,3. trifluoro propene, 1,1,1,3,3 pentafluoropropanes, 1,3,3,3-tetrafluoeopropene or 2,3,3,3 tetrafluoeopropenes.
Wherein, the working medium that described photovoltaic steam-jet compression systemic circulation adopts is carbon dioxide, 1,1,1, and 2 HFC-134as, difluoromethane, difluoromethane and pentafluoroethane mixture, a fluoroethane, propane or propylene.
The beneficial effects of the utility model are:
Utilize Driven by Solar Energy heat pump to saving conventional energy resource, conservation of nature environment tool is of great significance.Solar heat pump, compared with conventional heat pump air-conditioning, has the advantages such as seasonal adaptation is good, environmental protection.Solar energy heat pump system is using solar energy as drive energy, and this partial heat energy can be considered as again free, its social benefit and environment protection significance obvious; Solar energy heat pump system and can provide hot water to combine by cooling in summer, winter heating other season, considerably improves the advantage such as utilization rate and economy of solar energy system.
(1) solar energy jetting of the present utility model and photovoltaic steam-jet compression combine heat pump realizes under different heat accumulation systematic evaluation by the keying controlling each valve, complete solar energy jetting combines heat pump heating condition and cooling condition conversion freely with photovoltaic steam-jet compression, thus make space refrigeration and heat supplying process continuous.
(2) solar energy jetting of the present utility model is combined heat pump and when heat accumulation is not enough, battery can be utilized to promote photovoltaic steam-jet compression cooling system, realize making full use of solar energy with photovoltaic steam-jet compression.
(3) in solar energy jetting of the present utility model and photovoltaic steam-jet compression system, solar energy jetting circulation adopts novel low GWP working medium, is realizing while system high efficiency runs, making system environmental protection more.
(4) solar energy makes full use of as clean energy resource by solar energy jetting of the present utility model and photovoltaic steam-jet compression system, achieves the organic assembling with existing heat pump.
(5) the utility model adopts solar panel to drive compressor, makes whole system energy source all utilize solar energy, can depart from electrical network completely, be applicable to the areas such as more remote island.
(6) the utility model adds injector at photovoltaic steam-jet compression cyclic part, and the efficiency making photovoltaic steam-jet compression combine heat pump improves further.
(7) the utility model adopts air energy twin-stage to assist steam compressed operational mode, when the heat that solar energy provides is inadequate, air can be utilized to assist vapor-compression cycle, and efficiently solves the different problem of operation pressure ratio.By effective control of each valve, achieve and air energy twin-stage all can be adopted to assist the situation of steam compressed operation in cooling in summer operating mode and Winter heat supply operating mode.
Accompanying drawing explanation
Fig. 1 is that solar energy jetting provided by the utility model combines the schematic diagram of heat pump with photovoltaic steam-jet compression;
Fig. 2 is the solution principle figure that the utility model only adopts the steam compressed accessory system of air energy twin-stage under cooling condition;
Fig. 3 is the solution principle figure that the utility model adopts photovoltaic steam-jet compression system under cooling condition simultaneously;
Fig. 4 is the solution principle figure that the utility model only adopts steam-jet compression system under cooling condition;
Fig. 5 is that the utility model is at the solution principle figure supplying to adopt under thermal condition cascade cycle system;
Fig. 6 is that the utility model is adopting the steam compressed accessory system of air energy twin-stage to heat solution principle figure under thermal condition;
Wherein: solid line represents unlatching pipeline, dotted line represents blinds off a line;
In figure: 1, solar thermal collector; 2, fluid reservoir; 3, generator; 4, first injector; 5, condenser; 6, first magnetic valve; 7, first expansion valve; 8, First Heat Exchanger; 9, working medium pump; 10, second injector; 11, gas-liquid separator; 12, second expansion valve; 13, second heat exchanger; 14, first compressor; 15, first four-way change-over valve; 16, second magnetic valve; 17, three magnetic valve; 18, second compressor; 19, three heat exchanger; 20, three expansion valve; 21, second four-way change-over valve; 22, four magnetic valve; 23, five magnetic valve; 24, first triple valve; 25, second triple valve; 26, six magnetic valve; 27, three triple valve; 28, solar panel; 29, wind generator system; 30, controller; 31, battery; 32, inverter.
Detailed description of the invention
For content of the present utility model, feature and effect can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
As shown in Figure 1, this embodiment discloses herein a kind of solar energy jetting and combine heat pump with photovoltaic steam-jet compression, this system is made up of solar energy jetting system and photovoltaic steam-jet compression system.
Solar energy jetting system is made up of collecting system and spraying system.
Collecting system is made up of solar thermal collector 1, fluid reservoir 2 and generator 3.Wherein, generator 3 version can be ordinary heat exchanger or micro-channel heat exchanger.The outlet of solar thermal collector 1 is connected with the entrance of fluid reservoir 2, and the outlet of fluid reservoir 2 is connected with the collecting system side entrance of generator 3, and the collecting system side outlet of generator 3 is connected with the entrance of solar thermal collector 1; Thus form circulation.
Spraying system is made up of the first injector 4, condenser 5, first magnetic valve 6, first expansion valve 7, First Heat Exchanger 8 and working medium pump 9.Wherein, condenser 5 can be air-cooled heat exchanger or water-cooled heat exchanger, and its version can be ordinary heat exchanger or micro-channel heat exchanger.Wherein, the version of First Heat Exchanger 8 can be double pipe heat exchanger, plate type heat exchanger or micro-channel heat exchanger.
The spraying system side outlet of generator 3 is connected with the high pressure entry of the first injector 4, the outlet of the first injector 4 is connected with condenser 5 entrance, condenser 5 outlet is connected with the first magnetic valve 6 entrance, first magnetic valve 6 exports and is connected with the first expansion valve 7 entrance and working medium pump 9 entrance respectively, first expansion valve 7 outlet is connected with the spraying system side entrance of First Heat Exchanger 8, the spraying system side outlet of First Heat Exchanger 8 is connected with the low-pressure inlet of the first injector 4, the outlet of working medium pump 9 is connected with the spraying system side entrance of generator 3, thus forms circulation.
Solar energy jetting systemic circulation adopts the low GWP working medium of novel environment friendly, and such as 1. chloro-3,3,3 trifluoro propenes (R1233zd), 1,1,1,3,3 pentafluoropropanes (R254fa), 1,3,3,3-tetrafluoeopropene (HFO1234Ze) and 2,3,3,3 tetrafluoeopropenes (HFO1234yf).
Photovoltaic steam-jet compression system is made up of steam-jet compression system, the steam compressed accessory system of air energy twin-stage and solar photovoltaic generation system, described steam-jet compression system and described solar energy jetting System's composition cascade cycle system.
Steam-jet compression system is made up of First Heat Exchanger 8, second injector 10, gas-liquid separator 11, second expansion valve 12, second heat exchanger 13, first compressor 14, first four-way change-over valve 15, second magnetic valve 16, second four-way change-over valve 21, the 4th magnetic valve 22, first triple valve 24 and the second triple valve 25; Wherein the first four-way change-over valve 15 left port is communicated with lower port or upper port, right output port is communicated with upper port or lower port, wherein the second four-way change-over valve 21 left port is communicated with upper port or lower port, right output port is communicated with lower port or upper port, wherein the upper port of the first triple valve 24 is communicated with lower port or right output port, and wherein the left port of the second triple valve 25 is communicated with right output port or lower port.Wherein the second heat exchanger 13 can be air-cooled heat exchanger or water-cooled heat exchanger, and its version can be ordinary heat exchanger or micro-channel heat exchanger.
The outlet of the steam-jet compression system side of First Heat Exchanger 8 is connected with the upper port of the second four-way change-over valve 21, the right output port of the second four-way change-over valve 21 is connected with the high pressure entry of the second injector 10, the outlet of the second injector 10 is connected with the entrance of gas-liquid separator 11, the liquid outlet of gas-liquid separator 11 is connected with the entrance of the second expansion valve 12, the outlet of the second expansion valve 12 is connected with the left port of the second triple valve 25, the right output port of the second triple valve 25 is connected with the right output port of the upper port of the 6th magnetic valve 26 and the first four-way change-over valve 15, the lower port of the first four-way change-over valve 15 is connected with the upper port of the first triple valve 24, the lower port of the first triple valve 24 is connected with the entrance of the left port of the 3rd triple valve 27 and the second heat exchanger 13, the outlet of the second heat exchanger 13 is connected with the lower port of the 4th magnetic valve 22, the upper port of the 4th magnetic valve 22 is connected with the lower port of the second four-way change-over valve 21, the left port of the second four-way change-over valve 21 is connected with the low-pressure inlet of the second injector 10, the gas vent of gas-liquid separator 11 is connected with the entrance of the first compressor 14, the outlet of the first compressor 14 is connected with the left port of the first four-way change-over valve 15, the upper port of the first four-way change-over valve 15 is connected with the right output port of the second magnetic valve 16, the left port of described second magnetic valve (16) is connected with the left port of First Heat Exchanger (8).
The working medium that described steam-jet compression system adopts is carbon dioxide (CO
2), 1,1,1,2 HFC-134as (R134a), difluoromethane (R32), difluoromethane and pentafluoroethane mixture (R410A), a fluoroethane (R161), propane (R290) or propylene (R1270).
The steam compressed accessory system of air energy twin-stage is made up of the second heat exchanger 13, first compressor 14, first four-way change-over valve 15, the 3rd magnetic valve 17, second compressor 18, the 3rd heat exchanger 19, the 3rd expansion valve 20, the 5th magnetic valve 23, the 6th magnetic valve 26 and the 3rd triple valve 27.Wherein the upper port of the 3rd triple valve 27 is communicated with lower port or left port, and wherein the 3rd heat exchanger 19 can be air-cooled heat exchanger or water-cooled heat exchanger, and its version can be ordinary heat exchanger or micro-channel heat exchanger.
The working medium that the steam compressed accessory system of air energy twin-stage adopts is carbon dioxide (CO
2), 1,1,1,2 HFC-134as (R134a), difluoromethane (R32), difluoromethane and pentafluoroethane mixture (R410A), a fluoroethane (R161), propane (R290) or propylene (R1270).
First compressor 14 export with the first four-way commutate lead to valve 15 left port be connected, logical valve 15 upper port of first four-way commutation is connected with the 3rd magnetic valve 17 upper port, 3rd magnetic valve 17 lower port is connected with the entrance of the second compressor 18, the outlet of the second compressor 18 is connected with the upper port of the 3rd triple valve 27, the lower port port of the 3rd triple valve 27 is connected with the right output port of the 3rd heat exchanger 19 and the 6th magnetic valve 26 lower port, and the 6th magnetic valve 26 upper port is connected with the right output port of the second triple valve 25 with the right output port of the first four-way change-over valve 15 respectively; The left port of the 3rd heat exchanger 19 is connected with the lower port of the right output port of the 3rd expansion valve 20 and the second triple valve 25, the left port of the 3rd expansion valve 20 is connected with the right output port of the second heat exchanger 13, the left port of the second heat exchanger 13 is connected with the lower port of the 5th magnetic valve 23, and the upper port of the 5th magnetic valve 23 is connected with the entrance of the first compressor 14.
Solar photovoltaic generation system is made up of solar panel 28, wind generator system 29, controller 30, battery 31, inverter 32, the outlet of solar panel 28 is all connected with the entrance of controller 30 with the outlet of wind generator system 29, the outlet of controller 30 is connected with battery 31 and inverter 32 respectively, and inverter 32 is connected with load working medium pump 9, first compressor 14 and the second compressor 18 respectively.
The operation principle that solar energy jetting provided by the utility model combines heat pump with photovoltaic steam-jet compression is as follows:
Under cooling condition, when not collecting solar energy, system can use the steam compressed accessory system refrigeration of air energy twin-stage; When the solar energy collected can not meet refrigeration demand, system can use cascade cycle and the steam compressed accessory system of air energy twin-stage to freeze simultaneously; When the solar energy collected meets refrigeration demand, system only uses cascade cycle to freeze.Heating condition, system uses air energy twin-stage vapor-compression cycle to heat.
(1) cooling condition
A. when not collecting solar energy, as shown in Figure 2, the steam compressed accessory system solutions for refrigeration of air energy twin-stage is adopted.
Collecting system does not collect solar energy, cannot provide heat for fluid reservoir 2 and generator 3; Solar energy jetting system is out of service.Solar photovoltaic generation system is generated electricity by solar panel 28, and passes through controller 30 by electrical power storage to battery 32; Meanwhile, wind generator system 29 electric energy that generates electricity also is stored into battery 32 by controller 30, both generate electricity and all can provide electricity by inverter 31 first compressor 14 that is the steam compressed accessory system of air energy twin-stage and the second compressor 18.
Wherein the first magnetic valve 6, working medium pump 9, second expansion valve 12, second magnetic valve 16, the 4th magnetic valve 22, the 6th magnetic valve 26 are closed, 3rd magnetic valve 17, the 3rd expansion valve 20, the 5th magnetic valve 23 are opened, first four-way change-over valve 15 left port is communicated with upper port, right output port is communicated with lower port, and the 3rd triple valve 27 upper port is communicated with lower port.
High-pressure fluid after the first compressor 14 compresses enters the 3rd magnetic valve 17 through the first four-way change-over valve 15, enters the second compressor 18 and compresses further, enter the 3rd heat exchanger 19 condensation heat release subsequently from the fluid of the 3rd magnetic valve 17 outflow.After the cold-producing medium of the 3rd heat exchanger 19 outflow enters the 3rd expansion valve 20 throttling, enter the second heat exchanger 13 evaporation endothermic, the gas produced entered the first compressor 14 after entering the 5th magnetic valve 23, completed the steam compressed auxiliary circulation of twin-stage, implementation space cooling.
B. when the solar energy collected can not meet refrigeration demand, as shown in Figure 3, photovoltaic steam-jet compression system is adopted to comprise the solutions for refrigeration of the steam compressed accessory system of air energy twin-stage.
Collecting system collects solar energy makes fluid reservoir 2 temperature rise, and fluid enters generator 3 heat exchange; Solar photovoltaic generation system collects solar electrical energy generation, provides electric energy to pump 9, and provides electricity for the first compressor 14 of the steam compressed accessory system of air energy twin-stage and the second compressor 18.
Wherein the first magnetic valve 6, first expansion valve 7, second expansion valve 12, second magnetic valve 16, the 3rd magnetic valve 17, the 3rd expansion valve 20, the 4th magnetic valve 22, the 5th magnetic valve 23 are opened, 6th magnetic valve 26 cuts out, first four-way change-over valve 15 left port is communicated with upper port, right output port is communicated with lower port, second four-way change-over valve 21 left port is communicated with lower port, right output port is communicated with upper port, first triple valve 24 upper port is connected with lower port, second triple valve 25 left port is communicated with right output port, and the 3rd triple valve 27 upper port is communicated with lower port.
High temperature fluid after solar thermal collector 1 heats, enters generator 3 and carries out exchange heat, become cryogen after flowing through fluid reservoir 2, and then enters solar thermal collector 1 and absorb solar energy and become high temperature fluid, completes collecting system circulation.The high temperature fluid that refrigerant liquid in spraying system circulation produces with solar thermal collector 1 in generator 3 carries out heat exchange and gasifies becoming steam.Steam flows through the contraction and enlargement nozzle in the first injector 4, and pressure reduces, flow velocity increases, and becomes supersonic flow, forms the steam in low-pressure suction First Heat Exchanger 8 thus.After two bursts of steam mixing, through the diffuser of the first injector 4, leave the first injector 4; The steam of discharging the first injector 4 is condensed into liquid in condenser 5.The liquid that condenser 5 exports is divided into two-way, and a road enters First Heat Exchanger 8 through the first expansion valve 7, carries out evaporation and heat-exchange; Another road enters generator 3 via after working medium pump 9 supercharging, carries out exchange heat.So far, the solar energy jetting systemic circulation under cooling condition completes.
In steam-jet compression system, working medium in steam-jet compression system after First Heat Exchanger 8 becomes the liquid cold-producing medium of HTHP, contraction and enlargement nozzle in the second injector 10, pressure reduces, flow velocity increases, and forms the steam in low-pressure suction second heat exchanger 13.After two fluids mixing, through the diffuser of the second injector 10, leave the second injector 10 and enter gas-liquid separator 11.In gas-liquid separator 11, liquid stream enters the second heat exchanger 13 after the second expansion valve 12, carries out evaporation endothermic; In gas-liquid separator 11, gas enters First Heat Exchanger 8 after compressing supercharging by the first compressor 14, carries out exchange heat, completes the cascade cycle under cooling condition, implementation space cooling.
Meanwhile, the high-pressure fluid after the first compressor 14 compresses enters the 3rd magnetic valve 17 through the first four-way change-over valve 15, enters the second compressor 18 and compresses further, enter the 3rd heat exchanger 19 condensation heat release subsequently from the fluid of the 3rd magnetic valve 17 outflow.The second heat exchanger 13 evaporation endothermic is entered after the cold-producing medium of the 3rd heat exchanger 19 outflow enters the 3rd expansion valve 20 throttling, the gas produced entered the first compressor 14 after entering the 5th magnetic valve 23, complete the steam compressed auxiliary circulation of air energy twin-stage, implementation space cooling.
C. when the solar energy collected meets refrigeration demand, as shown in Figure 4, photovoltaic steam-jet compression system is adopted not comprise the refrigerating operaton scheme of the steam compressed accessory system of air energy twin-stage.
Collecting system is collected solar energy and is provided heat for fluid reservoir 2 and generator 3; Solar photovoltaic generation system collects solar electrical energy generation, provides electricity to working medium pump 9 and the first compressor 14.
Wherein the first magnetic valve 6, first expansion valve 7, second expansion valve 12, second magnetic valve 16, the 4th magnetic valve 22 are opened, 3rd magnetic valve 17, the 3rd expansion valve 20, the 5th magnetic valve 23, the 6th magnetic valve 26 are closed, first four-way change-over valve 15 left port is communicated with upper port, right output port is communicated with lower port, second four-way change-over valve 21 left port is communicated with lower port, right output port is communicated with upper port, first triple valve 24 upper port is connected with lower port, and the second triple valve 25 left port is communicated with right output port.
High temperature fluid after solar thermal collector 1 heats, enters generator 3 and carries out exchange heat, become cryogen after flowing through fluid reservoir 2, and then enters solar thermal collector 1 and absorb solar energy and become high temperature fluid, completes collecting system circulation.The high temperature fluid that refrigerant liquid in spraying system circulation produces with solar thermal collector 1 in generator 3 carries out heat exchange and gasifies becoming steam.Steam flows through the contraction and enlargement nozzle in the first injector 4, and pressure reduces, flow velocity increases, and becomes supersonic flow, forms the steam in low-pressure suction First Heat Exchanger 8 thus.After two bursts of steam mixing, through the diffuser of the first injector 4, leave the first injector 4; The steam of discharging the first injector 4 is condensed into liquid in condenser 5.The liquid that condenser 5 exports is divided into two-way, and a road enters First Heat Exchanger 8 through the first expansion valve 7, carries out evaporation and heat-exchange; Another road enters generator 3 via after working medium pump 9 supercharging, carries out exchange heat.So far, the solar energy jetting systemic circulation under cooling condition completes.
In steam-jet compression system, working medium in steam-jet compression system after First Heat Exchanger 8 becomes the liquid cold-producing medium of HTHP, contraction and enlargement nozzle in the second injector 10, pressure reduces, flow velocity increases, and forms the steam in low-pressure suction second heat exchanger 13.After two fluids mixing, through the diffuser of the second injector 10, leave the second injector 10 and enter gas-liquid separator 11.In gas-liquid separator 11, liquid stream enters the second heat exchanger 13 after the second expansion valve 12, carries out evaporation endothermic; In gas-liquid separator 11, gas enters First Heat Exchanger 8 after compressing supercharging by the first compressor 14, carries out exchange heat, completes the cascade cycle under cooling condition, implementation space cooling.
(2) for thermal condition
A. collecting in enough solar energy situations, as shown in Figure 5, adopting solar energy jetting and photovoltaic steam-jet compression system not to comprise the heat supply scheme of the steam compressed auxiliary system of air energy twin-stage.
Collecting system is collected solar energy and is provided heat for fluid reservoir 2 and generator 3;
Solar photovoltaic generation system collects solar electrical energy generation, provides electricity to working medium pump 9, first compressor 14 and the second compressor 18.Wherein the first expansion valve 7, second expansion valve 12, second magnetic valve 16, the 4th magnetic valve 22 are opened, first magnetic valve 6, the 3rd magnetic valve 17, the 3rd expansion valve 20, the 5th magnetic valve 23,6th magnetic valve 26 cuts out, first four-way change-over valve 15 left port is communicated with lower port, right output port is communicated with upper port, second four-way change-over valve 21 left port is communicated with upper port, right output port is communicated with lower port, first triple valve 24 upper port is communicated with right output port, second triple valve 25 left port is connected with right output port, and the 3rd triple valve 27 upper port is communicated with left port.
High temperature fluid after solar thermal collector 1 heats, enters generator 3 and carries out exchange heat, become cryogen after fluid reservoir 2, and then enters solar thermal collector 1 and absorb solar energy and become high temperature fluid, completes collecting system circulation.The high temperature fluid that refrigerant liquid in spraying system circulation produces with solar thermal collector 1 in generator 3 carries out heat exchange and heats up.High temperature refrigerant stream enters First Heat Exchanger 8 by the high-pressure mouth end of the first injector 4 through low pressure port end, and now the first injector 4 does not exist jet-action.High temperature refrigerant carries out heat exchange and becomes low-temperature refrigerant in First Heat Exchanger 8, flows through the first expansion valve 7 opened completely, and then fluid enters generator 3 continuation heat absorption through working medium pump 9, completes for the spraying system circulation under thermal condition.
In steam-jet compression system, working medium in steam-jet compression system after the second heat exchanger 13 becomes the liquid cold-producing medium of HTHP, contraction and enlargement nozzle in the second injector 10, pressure reduces, flow velocity increases, and forms the steam in low-pressure suction First Heat Exchanger 8.After two fluids mixing, through the diffuser of the second injector 10, leave the second injector 10 and enter gas-liquid separator 11.In gas-liquid separator 11, liquid stream enters First Heat Exchanger 8 after the second expansion valve 12, carries out evaporation endothermic; Enter the second compressor 18 by the first four-way change-over valve 15 and the first triple valve 24 after gas compresses supercharging by the first compressor 14 in gas-liquid separator 11 to increase, high-pressure fluid enters the second heat exchanger 13 by the 3rd triple valve 27 and carries out exchange heat, completes the steam compressed accessory system heat supply of air energy twin-stage.
B. do not collecting in enough solar energy situations, as shown in Figure 6, only adopting the steam compressed accessory system of air energy twin-stage.
Solar energy collector system collects solar energy makes fluid reservoir 2 temperature rise;
Collecting system does not collect solar energy for fluid reservoir 2 and generator 3 provides heat;
Solar energy jetting system is out of service; Solar photovoltaic generation system collects solar electrical energy generation, provides electricity to the first compressor 14 of the steam compressed accessory system of air energy twin-stage and the second compressor 18.Wherein the second expansion valve 12, second magnetic valve 16, the 4th magnetic valve 22, the 6th magnetic valve 26 are opened, first magnetic valve 6, first expansion valve 7, the 3rd magnetic valve 17, the 3rd expansion valve 20, the 5th magnetic valve 23 are closed, first four-way change-over valve 15 left port is communicated with lower port, right output port is communicated with upper port, second four-way change-over valve 21 left port is communicated with upper port, right output port is communicated with lower port, first triple valve 24 upper port is communicated with right output port, second triple valve 25 left port is connected with lower port, and the 3rd triple valve 27 upper port is communicated with left port.
In the steam compressed accessory system of air energy twin-stage, working medium in steam-jet compression system after the second heat exchanger 13 becomes the liquid cold-producing medium of HTHP, contraction and enlargement nozzle in the second injector 10, pressure reduces, flow velocity increases, and forms the steam in low-pressure suction the 3rd heat exchanger 19.After two fluids mixing, through the diffuser of the second injector 10, leave the second injector 10 and enter gas-liquid separator 11.In gas-liquid separator 11, liquid stream enters the 3rd heat exchanger 19 after the second expansion valve 12, carries out evaporation endothermic, enters idle First Heat Exchanger 8 subsequently, enters the second injector 10; The second compressor 18 supercharging is entered by the first four-way change-over valve 15 and the first triple valve 24 after gas compresses supercharging by the first compressor 14 in gas-liquid separator 11, high-pressure fluid enters the second heat exchanger 13 and carries out exchange heat, completes the steam compressed accessory system heat supply of air energy twin-stage.
Although be described preferred embodiment of the present utility model with preferred embodiment by reference to the accompanying drawings above; but the utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing under the ambit that present inventive concept and claim protect; can also make the concrete conversion of a lot of form, these all belong within protection domain of the present utility model.
Claims (6)
1. solar energy jetting combines a heat pump with photovoltaic steam-jet compression, it is characterized in that, this system is made up of solar energy jetting system and photovoltaic steam-jet compression system:
Described solar energy jetting system is made up of collecting system and spraying system, described collecting system is made up of solar thermal collector (1), fluid reservoir (2) and generator (3), the outlet of described solar thermal collector (1) is connected with the entrance of fluid reservoir (2), the outlet of described fluid reservoir (2) is connected with the collecting system side entrance of generator (3), and the collecting system side outlet of described generator (3) is connected with the entrance of solar thermal collector (1), described spraying system is by the first injector (4), condenser (5), first magnetic valve (6), first expansion valve (7), First Heat Exchanger (8) and working medium pump (9) composition, the spraying system side outlet of described generator (3) is connected with the high pressure entry of the first injector (4), the outlet of described first injector (4) is connected with condenser (5) entrance, described condenser (5) outlet is connected with the first magnetic valve (6) entrance, described first magnetic valve (6) outlet is connected with the first expansion valve (7) entrance and working medium pump (9) entrance respectively, described first expansion valve (7) outlet is connected with the spraying system side entrance of First Heat Exchanger (8), the spraying system side outlet of described First Heat Exchanger (8) is connected with the low-pressure inlet of the first injector (4), the outlet of described working medium pump (9) is connected with the spraying system side entrance of generator (3),
Described photovoltaic steam-jet compression system is by steam-jet compression system, the steam compressed accessory system of air energy twin-stage and solar photovoltaic generation system composition, described steam-jet compression system and described solar energy jetting System's composition cascade cycle system, described steam-jet compression system is by First Heat Exchanger (8), second injector (10), gas-liquid separator (11), second expansion valve (12), second heat exchanger (13), first compressor (14), first four-way change-over valve (15), second magnetic valve (16), second four-way change-over valve (21), 4th magnetic valve (22), first triple valve (24) and the second triple valve (25) composition, wherein the first four-way change-over valve (15) left port is communicated with lower port or upper port, right output port is communicated with upper port or lower port, wherein the second four-way change-over valve (21) left port is communicated with upper port or lower port, right output port is communicated with lower port or upper port, wherein the upper port of the first triple valve (24) is communicated with lower port or right output port, wherein the left port of the second triple valve (25) is communicated with right output port or lower port, the outlet of the steam-jet compression system side of described First Heat Exchanger (8) is connected with the upper port of the second four-way change-over valve (21), the right output port of described second four-way change-over valve (21) is connected with the high pressure entry of the second injector (10), the outlet of described second injector (10) is connected with the entrance of gas-liquid separator (11), the liquid outlet of described gas-liquid separator (11) is connected with the entrance of the second expansion valve (12), the outlet of described second expansion valve (12) is connected with the left port of the second triple valve (25), the right output port of described second triple valve (25) is connected with the upper port of the 6th magnetic valve (26) and the right output port of the first four-way change-over valve (15), the lower port of the first four-way change-over valve (15) is connected with the upper port of the first triple valve (24), the lower port of described first triple valve (24) is connected with the left port of the 3rd triple valve (27) and the entrance of the second heat exchanger (13), the outlet of described second heat exchanger (13) is connected with the lower port of the 4th magnetic valve (22), the upper port of described 4th magnetic valve (22) is connected with the lower port of the second four-way change-over valve (21), the left port of described second four-way change-over valve (21) is connected with the low-pressure inlet of the second injector (10), the gas vent of gas-liquid separator (11) is connected with the entrance of compressor (14), the outlet of described first compressor (14) is connected with the left port of the first four-way change-over valve (15), the upper port of described first four-way change-over valve (15) is connected with the right output port of the second magnetic valve (16), the left port of described second magnetic valve (16) is connected with the left port of First Heat Exchanger (8),
The steam compressed accessory system of described air energy twin-stage is by the second heat exchanger (13), first compressor (14), first four-way change-over valve (15), 3rd magnetic valve (17), second compressor (18), 3rd heat exchanger (19), 3rd expansion valve (20), 5th magnetic valve (23), 6th magnetic valve (26) and the 3rd triple valve (27) composition, wherein the upper port of the 3rd triple valve (27) is communicated with lower port or left port, logical valve (15) upper port of described first four-way commutation is connected with the 3rd magnetic valve (17) upper port, described 3rd magnetic valve (17) lower port is connected with the entrance of the second compressor (18), the outlet of described second compressor (18) is connected with the upper port of the 3rd triple valve (27), the lower port of the 3rd triple valve (27) is connected with the right output port of the 3rd heat exchanger (19) and the 6th magnetic valve (26) lower port, 6th magnetic valve (26) upper port is connected with the right output port of the second triple valve (25) with the right output port of the first four-way change-over valve (15) respectively, the left port of described 3rd heat exchanger (19) is connected with the right output port of the 3rd expansion valve (20) and the lower port of the second triple valve (25), the left port of described 3rd expansion valve (20) is connected with the right output port of the second heat exchanger (13), the left port of described second heat exchanger (13) is connected with the lower port of the 5th magnetic valve (23), and the upper port of described 5th magnetic valve (23) is connected with the entrance of the first compressor (14),
Described solar photovoltaic generation system is by solar panel (28), wind generator system (29), controller (30), battery (31), inverter (32) forms, the outlet of described solar panel (28) is all connected with the entrance of controller (30) with the outlet of wind generator system (29), the outlet of described controller (30) is connected with battery (31) and inverter (32) respectively, described inverter (32) and load working medium pump (9), first compressor (14) is connected respectively with the second compressor (18).
2. a kind of solar energy jetting according to claim 1 combines heat pump with photovoltaic steam-jet compression, it is characterized in that, described condenser (5), described second heat exchanger (13), described 3rd heat exchanger (19) are air-cooled heat exchanger or water-cooled heat exchanger.
3. a kind of solar energy jetting according to claim 1 combines heat pump with photovoltaic steam-jet compression, it is characterized in that, described generator (3), described condenser (5), described second heat exchanger (13), described 3rd heat exchanger (19) are micro-channel heat exchanger.
4. a kind of solar energy jetting according to claim 1 combines heat pump with photovoltaic steam-jet compression, it is characterized in that, described First Heat Exchanger (8) is double pipe heat exchanger, plate type heat exchanger or micro-channel heat exchanger.
5. a kind of solar energy jetting according to claim 1 combines heat pump with photovoltaic steam-jet compression, it is characterized in that, the working medium that described solar energy jetting systemic circulation adopts is 1. chloro-3,3,3. trifluoro propene, 1,1,1,3,3 pentafluoropropanes, 1,3,3,3-tetrafluoeopropene or 2,3,3,3 tetrafluoeopropenes.
6. a kind of solar energy jetting according to claim 1 combines heat pump with photovoltaic steam-jet compression, it is characterized in that, the working medium that described photovoltaic steam-jet compression systemic circulation adopts is carbon dioxide, 1,1,1,2 HFC-134as, difluoromethane, difluoromethane and pentafluoroethane mixture, a fluoroethane, propane or propylene.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848584A (en) * | 2015-05-06 | 2015-08-19 | 天津大学 | Combined heat pump system with solar injection and solar photovoltaic steam injection and compression |
| CN105225599A (en) * | 2015-10-26 | 2016-01-06 | 天津商业大学 | A kind of carbon dioxide cascade refrigeration comprehensive experiment table of solar energy jetting |
| CN112393455A (en) * | 2019-07-30 | 2021-02-23 | 珠海格力电器股份有限公司 | Solar photovoltaic jet refrigeration and heating system with four-way valve |
-
2015
- 2015-05-06 CN CN201520288855.9U patent/CN204648741U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848584A (en) * | 2015-05-06 | 2015-08-19 | 天津大学 | Combined heat pump system with solar injection and solar photovoltaic steam injection and compression |
| CN105225599A (en) * | 2015-10-26 | 2016-01-06 | 天津商业大学 | A kind of carbon dioxide cascade refrigeration comprehensive experiment table of solar energy jetting |
| CN105225599B (en) * | 2015-10-26 | 2018-06-22 | 天津商业大学 | A kind of comprehensive experiment table of solar energy jetting and carbon dioxide cascade refrigeration |
| CN112393455A (en) * | 2019-07-30 | 2021-02-23 | 珠海格力电器股份有限公司 | Solar photovoltaic jet refrigeration and heating system with four-way valve |
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