CN109282397B - Novel energy storage air conditioning device and method based on air compression refrigeration cycle - Google Patents
Novel energy storage air conditioning device and method based on air compression refrigeration cycle Download PDFInfo
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- CN109282397B CN109282397B CN201810920638.5A CN201810920638A CN109282397B CN 109282397 B CN109282397 B CN 109282397B CN 201810920638 A CN201810920638 A CN 201810920638A CN 109282397 B CN109282397 B CN 109282397B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
- F24F5/0021—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice using phase change material [PCM] for storage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
The invention provides a novel energy storage air conditioning device based on air compression refrigeration cycle, which comprises a dilute solution storage tank, a concentrated solution storage tank, a condensed water storage tank, an ice making device, an ice storage tank, a compressor, an expander, a condenser, a first generator, a second generator, an evaporator, an absorber, a heat exchanger, an absorption type refrigeration device, a concentrated solution generation device, a condensed water tray and a solution liquid distribution tank, wherein the dilute solution storage tank is connected with the condensed water storage tank; the invention also provides a use method of the novel energy storage air conditioner based on the air compression refrigeration cycle, the compression heat, the expansion work and the cold energy generated by the expansion refrigeration are utilized in the cold accumulation process, and the energy efficiency is higher; in the process of melting ice and releasing cold, ice particles are directly contacted with water, so that the heat transfer efficiency is high, the cold releasing is fast, the lower cold water temperature can be obtained, and the system cost can be reduced by adopting the technologies of low-temperature air supply and the like.
Description
Technical Field
The invention relates to a novel energy storage air conditioning device and method based on air compression refrigeration cycle, which utilize sensible heat of compressed high-temperature air to heat a concentrated solution to realize energy storage and release cold energy through absorption refrigeration; meanwhile, compressed air is expanded and cooled and then is in direct contact with water or solution to make ice, so that the ice-making machine is a novel environment-friendly and efficient energy-storage air-conditioning technology.
Background
The energy consumption for heating, ventilating and air conditioning in the building energy consumption accounts for an important proportion, usually about 50%, so that the energy conservation of the heating, ventilating and air conditioning system is an important link of building energy conservation. Therefore, researchers have conducted extensive research on efficient energy-saving air-conditioning systems and technologies, and also conducted research on renewable energy sources such as solar energy and shallow geothermal energy, and in addition, due to the fact that day and night peak-valley differences exist in heating and ventilating air-conditioning loads of a plurality of buildings and day and night peak-valley differences also exist in power grid power loads, the technology for ice making and cold storage by using night low-valley electricity is also researched and applied, and the technology mainly comprises dynamic ice making technologies such as a coil freezing type, an ice ball type and supercooled water ice making.
The ice cold storage technology used in the current engineering is based on a vapor compression refrigeration technology of a refrigerant, and the main problem is the environmental protection effect of the refrigerant, and a plurality of refrigerants belong to greenhouse effect gases and are used on a large scale to aggravate climate warming; other refrigerants are flammable or combustible, even toxic, such as ammonia and the like, and are not suitable for civil buildings; in addition, the existing ice storage technology such as coil freezing type also has the problems of low energy storage density, large occupied space of an ice storage tank, low ice making energy efficiency, complex ice melting and cold releasing and the like, and the problems of difficult realization of large supercooling degree in the ice making process, large cold water circulation amount, complex system and the like of supercooled water need to be overcome.
Accordingly, there is a need for improvements in the art.
Disclosure of Invention
The invention aims to provide a novel efficient energy storage air conditioning device and method based on air compression refrigeration cycle.
In order to solve the technical problems, the invention provides a novel energy storage air conditioning device based on air compression refrigeration cycle, which comprises the following components: the system comprises a dilute solution storage tank, a concentrated solution storage tank, a condensed water storage tank, an ice making device, an ice storage tank, a compressor, an expander, a condenser, a first generator, a second generator, an evaporator, an absorber, a heat exchanger, an absorption type refrigerating device, a concentrated solution generating device, a condensed water tray and a solution distributing tank;
an ice making spraying pipe II and an ice making spraying pipe I are arranged in the ice making device, and an ice-water mixture outlet and a gas outlet are formed in the ice making device; the ice storage tank is provided with an ice water inlet, a reflux inlet and an ice water outlet;
the outlet of the compressor is connected with the inlet of the second generator; the outlet of the second generator is connected with the inlet of an expander, and the expander is connected with a compressor; the outlet of the expansion machine is connected with the first ice making spraying pipe;
the gas outlet of the ice making device is connected with the inlet of the compressor, and the outlet of the compressor is connected with the inlet of the compressor;
an ice-water mixture outlet of the ice making device is connected with an ice-water inlet of the ice storage tank after passing through the pump;
the ice water outlet of the ice storage tank is respectively connected with the pump inlet and the pump inlet, and the pump outlet is connected with the ice making spray pipe II; the outlet of the pump is connected with the ice water inlet of the heat exchanger, and the ice water outlet of the heat exchanger is connected with the reflux inlet of the ice storage tank;
the inner cavity of the solution generating device is divided into a first chamber and a second chamber which are sequentially arranged from bottom to top;
the first chamber is internally provided with a second generator and a liquid distribution groove, and the liquid distribution groove is positioned at the top of the first chamber and is communicated with the bottom of the second chamber;
a first generator, a solution spray pipe, a condensed water disc and a condenser are sequentially arranged in the second chamber from bottom to top;
an evaporator, an absorber, a second spray pipe and a first spray pipe are arranged in the inner cavity of the absorption type refrigerating device, the second spray pipe is positioned right above the absorber, and the first spray pipe is positioned right above the evaporator;
the outlet of the first chamber is communicated with the inlet of the concentrated solution storage tank after passing through the pump, and the outlet of the concentrated solution storage tank is connected with the second spraying pipe after passing through the valve and the pump;
the inlet of the first generator is communicated with the top of the first chamber, and the outlet of the first generator is connected with the steam inlet of the condensed water storage tank;
the condensed water tray is connected with an inlet of a condensed water storage tank, and an outlet of the condensed water storage tank is connected with the first spraying pipe after passing through a valve and a pump;
the water inlet and outlet of the absorber are respectively connected with an external cooling water inlet and outlet; an external refrigerant inlet is connected with an evaporator inlet, an evaporator outlet is connected with a heat exchanger evaporation pipeline inlet, and a heat exchanger evaporation pipeline outlet is connected with an external refrigerant outlet;
the outlet of the refrigerating device is connected with the inlet of the dilute solution storage tank after passing through the pump, and the outlet of the dilute solution storage tank is connected with the solution spraying pipe after passing through the valve and the pump.
As an improvement of the novel energy storage air conditioning device based on the air compression refrigeration cycle of the invention:
and the second ice making spray pipe is arranged above the first ice making spray pipe.
The invention also provides a novel energy storage air conditioner using method based on the air compression refrigeration cycle, which comprises the following steps:
1) the air compressed by the compressor enters a second generator, the concentrated solution flowing down from the liquid distribution tank is dripped on the outer surface of the second generator, the solution is heated and concentrated by the compressed air in the second generator to obtain concentrated solution and primary water vapor, and the compressed air is cooled and cooled by the solution to become normal-temperature air;
2) the normal temperature air enters the expansion machine to do work through expansion, so that the compressor is driven, the expanded low temperature air enters the first ice making spray pipe and contacts with ice water sent out by the second ice making spray pipe, and the ice water is cooled and frozen into a mixture of ice particles and water; the temperature of the expanded low-temperature air is increased;
3) the mixture of the ice particles and the water is sent into an ice storage tank by a pump, the solid ice particles with lighter density are layered with the ice water, and the ice water at the bottom is sent into an ice making spray pipe II again by the pump;
4) the expanded low-temperature air with the increased temperature after contacting with the ice water in the ice making device is pre-compressed by a compressor and then further compressed by the compressor, and the compressed air with the increased temperature and pressure enters a second generator;
5) the concentrated solution in the first chamber is pumped into a concentrated solution storage tank;
6) the primary water vapor in the first chamber enters a first generator, the dilute solution in the dilute solution storage tank is sent out by a pump and sprayed on the surface of the first generator through a solution spraying pipe, the dilute solution is heated and concentrated by the primary water vapor in the first generator, the dilute solution becomes secondary water vapor and a concentrated solution, the primary water vapor becomes condensed water and flows into the condensed water storage tank, and the concentrated solution is sprayed on the surface of a second generator after entering a liquid distribution tank;
7) the secondary water vapor is cooled by cooling water in the condenser, condensed into liquid on the outer surface of the condenser, enters the condensed water tray and flows into the condensed water storage tank;
8) condensed water in the condensed water storage tank is sent into an absorption type refrigerating device by a pump, is sprayed on the outer surface of an evaporator through a first spraying pipe to be evaporated and absorb heat, the condensed water becomes water vapor, and return water of an air conditioning system is cooled in the evaporator; the backwater of the air conditioning system after being cooled enters a heat exchanger to exchange heat with ice water in the heat exchanger, and is further cooled by the ice water and then is sent back to the air conditioning system;
9) the concentrated solution in the concentrated solution storage tank is pumped into the second spraying pipe by a pump and then sprayed on the outer surface of the absorber, water vapor generated by the absorption evaporator becomes dilute solution, and external cooling water flows in an internal channel of the absorber to take away heat generated in the absorption process;
10) ice water in the ice storage tank is sent into the heat exchanger through the pump to exchange heat with the cooled air conditioning system backwater in the heat exchanger, and then flows back to the ice storage tank;
11) and the dilute solution in the refrigerating device enters a dilute solution storage tank through a pump.
The novel energy storage air conditioning device and method based on the air compression refrigeration cycle have the technical advantages that:
the media used by the invention are nontoxic, tasteless and nonflammable, and belong to safe and environment-friendly working media; the cold energy generated by compression heat, expansion work and expansion refrigeration is utilized in the cold accumulation process, so that the energy efficiency is higher; in the process of melting ice and releasing cold, ice particles are directly contacted with water, so that the heat transfer efficiency is high, the cold releasing is fast, the lower cold water temperature can be obtained, and the system cost can be reduced by adopting the technologies of low-temperature air supply and the like.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a novel energy storage air conditioning device based on an air compression refrigeration cycle.
Detailed Description
The invention will be further described with reference to specific examples, but the scope of the invention is not limited thereto.
Embodiment 1, a novel energy storage air conditioner based on an air compression refrigeration cycle, as shown in fig. 1, includes a weak solution storage tank 11, a strong solution storage tank 12, a condensed water storage tank 13, an ice making device 14, an ice storage tank 15, a pump 21.22.23.24.25.26.27.28, a compressor 31, a compressor 32, an expander 33, a condenser 41, a first generator 42, a second generator 43, an evaporator 44, an absorber 45, a heat exchanger 46, an absorption type refrigeration device 61, a strong solution generation device 62, a condensed water tray 71 and a solution distribution tank 72.
An ice making spray pipe II 142 and an ice making spray pipe I141 are arranged in the ice making device 14, and an ice-water mixture outlet and a gas outlet are arranged on the ice making device 14. The second ice making shower 142 is above the first ice making shower 141.
The ice storage tank 15 is provided with an ice water inlet, a reflux inlet and an ice water outlet.
The outlet of the compressor 32 is connected with the inlet of the second generator 43; the outlet of the second generator 43 is connected with the inlet of the expander 33, the expander 33 is connected with the compressor 31 and can drive the compressor 31; the outlet of the expander 33 is connected with the ice making shower pipe I141 of the ice making device 14.
The gas outlet of the ice-making device 14 is connected to the inlet of the compressor 31, and the outlet of the compressor 31 is connected to the inlet of the compressor 32.
The ice-water mixture outlet of the ice-making device 14 is connected with the ice-water inlet of the ice storage tank 15 through a pump 27.
An ice water outlet of the ice storage tank 15 is respectively connected with an inlet of the pump 28 and an inlet of the pump 26, and an outlet of the pump 28 is connected with a second ice making spraying pipe 142 of the ice making device 14; the outlet of the pump 26 is connected with the ice water inlet of the heat exchanger 46, and the ice water outlet of the heat exchanger 46 is connected with the reflux inlet of the ice storage tank 15.
The inner cavity of the solution generating device 62 is divided into a first chamber 621 and a second chamber 622 which are arranged from bottom to top in sequence.
The second generator 43 and the liquid distribution groove 72 are arranged in the first chamber 621 of the solution generating device 62, and the liquid distribution groove 72 is positioned at the top of the first chamber 621 and is communicated with the bottom of the second chamber 622; the cloth tank 72 is located directly above the second generator 43.
The inner cavity of the absorption refrigeration device 61 is provided with an evaporator 44, an absorber 45, a second spray pipe 612 and a first spray pipe 611, wherein the second spray pipe 612 is positioned right above the absorber 45, and the first spray pipe 611 is positioned right above the evaporator 44.
The first chamber 621 of the solution generating device 62 is communicated with the inlet of the concentrated solution storage tank 12 after passing through the pump 21, and the outlet of the concentrated solution storage tank 12 is connected with the inner cavity of the absorption refrigeration device 61 (the second spraying pipe 612 positioned right above the absorber 45) after passing through the valve 51 and the pump 24.
The second chamber 622 of the solution generating device 62 is provided with a first generator 42, a solution spraying pipe 623, a condensed water disc 71 and a condenser 41 in sequence from bottom to top;
the inlet of the first generator 42 is communicated with the top of the first chamber 621 of the solution generating device 62, the outlet of the first generator 42 is connected with the condensed water storage tank 13, the outlet of the first generator 42 is communicated with the first chamber 621, and the outlet of the first generator 42 is positioned right above the second generator 43.
The inlet of the first generator 42 is communicated with the top of the first chamber 621, and the outlet of the first generator 42 is connected with the steam inlet of the condensed water storage tank 13.
The condensed water tray 71 is connected to an inlet of the condensed water storage tank 13, and an outlet of the condensed water storage tank 13 is connected to an inner cavity (a first spray pipe 611 located right above the evaporator 44) of the absorption refrigeration apparatus 61 after passing through the valve 53 and the pump 23.
The absorption refrigeration device 61 is provided with an evaporator 44, an absorber 45, a second spray pipe 612 and a first spray pipe 611; the first shower pipe 611 is located directly above the evaporator 44, and the second shower pipe 612 is located directly above the absorber 45.
The water inlet and outlet of the absorber 45 are respectively connected with an external cooling water inlet and outlet; the external refrigerant inlet is connected with the inlet of the evaporator 44, the outlet of the evaporator 44 is connected with the inlet of the evaporation pipeline of the heat exchanger 46, and the outlet of the evaporation pipeline of the heat exchanger 46 is connected with the external refrigerant outlet.
The outlet of the refrigerating device 61 is connected with the inlet of the dilute solution storage tank 11 after passing through the pump 25, and the outlet of the dilute solution storage tank 11 is connected with the solution spraying pipe 623 after passing through the valve 52 and the pump 22.
The water inlet and outlet of the condenser 41 communicate with external cooling water.
The invention relates to a novel energy storage air conditioner using method based on air compression refrigeration cycle, which comprises the following steps:
valves 51, 53 are closed and valve 52 is open.
The air compressed by the compressor 32 firstly enters the second generator 43 in the concentrated solution generating device 62, the concentrated solution flowing down from the solution distribution tank 72 is dripped on the outer surface of the second generator 43, the solution is heated and concentrated by the compressed air in the second generator 43 to obtain concentrated solution and primary water vapor, and the compressed air is cooled and cooled by the solution to become normal-temperature air;
the normal temperature air enters the expansion machine 33 to do work through expansion, the compressor 31 is driven, the expanded low temperature air enters the ice making device 14 (the first ice making spray pipe 141) and directly contacts ice water (ice water sprayed by the second ice making spray pipe 142) sent by the pump 28, and the ice water is cooled and frozen into a mixture of ice particles and water;
the mixture of ice particles and water is sent into the ice storage tank 15 by the pump 27, the solid ice particles with lighter density are layered with the ice water, the ice water at the bottom is sent into the ice making device 14 again by the pump 28 to be directly contacted with the expanded low-temperature air for making ice,
the air with increased temperature in the ice making device 14 after contacting with the ice water is pre-compressed by the compressor 31 (the water freezes to release latent heat, the air temperature is increased to some extent), and then further compressed by the compressor 32, and the air with increased temperature and pressure becomes compressed air, and enters the second generator 43 in the solution generator 62.
The concentrated solution in the first chamber 621 is sent to the concentrated solution storage tank 12 through the pump 21;
the primary water vapor in the first chamber 621 of the solution generating device 62 enters the first generator 42, the dilute solution in the dilute solution storage tank 11 is sent out by the pump 22 and sprayed on the surface of the first generator 42 through the solution spraying pipe 623, and is heated and concentrated by the primary water vapor inside the first generator 42 to obtain the secondary water vapor and the concentrated solution, the primary water vapor becomes condensed water and flows into the condensed water storage tank 13, the concentrated solution enters the liquid distributing tank 72 and then is sprayed on the surface of the second generator 43,
the secondary water vapor is cooled by the cooling water in the condenser 41, condensed as liquid on the outer surface of the condenser 41, and then enters the condensate tray 71 to flow into the condensate storage tank 13.
During air conditioning, the valves 51 and 53 are opened, and the valve 52 is closed.
The condensed water in the condensed water storage tank 13 is sent into the absorption type refrigerating device 61 by the pump 23, and is sprayed on the outer surface of the evaporator 44 through the first spraying pipe 611 to evaporate and absorb heat, the condensed water becomes water vapor, and the return water of the air conditioning system is cooled in the evaporator 44; the cooled air conditioning system backwater enters the heat exchanger 46 to exchange heat with ice water therein, and is further cooled by the ice water and then is returned to the air conditioning system;
the concentrated solution in the concentrated solution storage tank 12 is sent to the absorption refrigeration device 61 by the pump 24, and is sprayed on the outer surface of the absorber 45 through the second spraying pipe 612, the water vapor generated by the absorption evaporator 44 becomes a dilute solution, and the cooling water flows in the internal channel of the absorber 45 to take away the heat generated in the absorption process.
The ice water in the ice storage tank 15 is sent to the heat exchanger 46 through the pump 26 to exchange heat with the cooled air conditioning system return water in the heat exchanger, and then flows back to the ice storage tank 15.
The weak solution in the refrigerating device 61 is introduced into the weak solution storage tank 11 through the pump 25.
The latent heat of vaporization of water is 2500kJ/kg, the concentration of the solution is increased by 30 percent after concentration, and the energy storage of 750kJ/kg can be realized, and the melting heat of ice is only 330kJ/kg, so the invention utilizes the solution to store energy, and the energy density is higher. Meanwhile, the ice making device utilizes low-temperature air and water to make ice by direct contact, has simple process, does not have occupied space such as a coil pipe and the like in the ice storage tank, has high volumetric efficiency and has higher energy storage density compared with other ice storage devices.
Finally, it is also noted that the above-mentioned lists merely illustrate a few specific embodiments of the invention. It is obvious that the invention is not limited to the above embodiments, but that many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (3)
1. Novel energy storage air conditioning equipment based on air compression refrigeration cycle, its characterized in that: the device comprises a dilute solution storage tank (11), a concentrated solution storage tank (12), a condensed water storage tank (13), an ice making device (14), an ice storage tank (15), a first compressor (31), a second compressor (32), an expander (33), a condenser (41), a first generator (42), a second generator (43), an evaporator (44), an absorber (45), a heat exchanger (46), an absorption type refrigerating device (61), a concentrated solution generating device (62), a condensed water tray (71) and a solution distributing tank (72);
an ice making spraying pipe II (142) and an ice making spraying pipe I (141) are arranged in the ice making device (14), and an ice-water mixture outlet and a gas outlet are formed in the ice making device (14); the ice storage tank (15) is provided with an ice water inlet, a reflux inlet and an ice water outlet;
the outlet of the second compressor (32) is connected with the inlet of a second generator (43); the outlet of the second generator (43) is connected with the inlet of an expander (33), and the expander (33) is connected with the first compressor (31); the outlet of the expander (33) is connected with the first ice making spraying pipe (141);
the gas outlet of the ice making device (14) is connected with the inlet of a first compressor (31), and the outlet of the first compressor (31) is connected with the inlet of a second compressor (32);
an ice-water mixture outlet of the ice making device (14) is connected with an ice-water inlet of the ice storage tank (15) after passing through a seventh pump (27);
an ice water outlet of the ice storage tank (15) is respectively connected with an inlet of an eighth pump (28) and an inlet of a sixth pump (26), and an outlet of the eighth pump (28) is connected with a second ice making spray pipe (142); an outlet of the sixth pump (26) is connected with an ice water inlet of the heat exchanger (46), and an ice water outlet of the heat exchanger (46) is connected with a reflux inlet of the ice storage tank (15);
the inner cavity of the solution generating device (62) is divided into a first chamber (621) and a second chamber (622) which are arranged from bottom to top in sequence;
a second generator (43) and a liquid distribution groove (72) are arranged in the first chamber (621), and the liquid distribution groove (72) is positioned at the top of the first chamber (621) and communicated with the bottom of the second chamber (622);
a first generator (42), a solution spraying pipe (623), a condensed water tray (71) and a condenser (41) are sequentially arranged in the second chamber (622) from bottom to top;
an evaporator (44), an absorber (45), a second spray pipe (612) and a first spray pipe (611) are arranged in an inner cavity of the absorption type refrigerating device (61), the second spray pipe (612) is positioned right above the absorber (45), and the first spray pipe (611) is positioned right above the evaporator (44);
an outlet of the first chamber (621) is communicated with an inlet of a concentrated solution storage tank (12) after passing through a first pump (21), and an outlet of the concentrated solution storage tank (12) is connected with a second spraying pipe (612) after passing through a first valve (51) and a fourth pump (24);
the inlet of the first generator (42) is communicated with the top of the first chamber (621), and the outlet of the first generator (42) is connected with the steam inlet of the condensed water storage tank (13);
the condensed water tray (71) is connected with an inlet of a condensed water storage tank (13), and an outlet of the condensed water storage tank (13) is connected with the first spray pipe (611) after passing through a third valve (53) and a third pump (23);
the water inlet and outlet of the absorber (45) are respectively connected with an external cooling water inlet and outlet; an external refrigerant inlet is connected with an inlet of an evaporator (44), an outlet of the evaporator (44) is connected with an inlet of an evaporation pipeline of a heat exchanger (46), and an outlet of the evaporation pipeline of the heat exchanger (46) is connected with an external refrigerant outlet;
an outlet of the refrigerating device (61) is connected with an inlet of the dilute solution storage tank (11) after passing through the fifth pump (25), and an outlet of the dilute solution storage tank (11) is connected with the solution spraying pipe (623) after passing through the second valve (52) and the second pump (22).
2. The novel energy storage air conditioning device based on the air compression refrigeration cycle as claimed in claim 1, characterized in that:
and the second ice making spray pipe (142) is arranged above the first ice making spray pipe (141).
3. The use method of the novel energy storage air conditioner based on the air compression refrigeration cycle, which utilizes the novel energy storage air conditioner based on the air compression refrigeration cycle as claimed in any one of claims 1 or 2, comprises the following steps:
1) the air compressed by the second compressor (32) enters the second generator (43), the concentrated solution flowing down from the liquid distribution groove (72) is dripped on the outer surface of the second generator (43), the solution is heated and concentrated by the compressed air in the second generator (43) to obtain concentrated solution and primary water vapor, and the compressed air is cooled and cooled by the solution to become normal-temperature air;
2) the normal temperature air enters an expander (33) to do work through expansion, so that a first compressor (31) is driven, the expanded low temperature air enters an ice making spraying pipe I (141) and contacts with ice water sent out by an ice making spraying pipe II (142), and the ice water is cooled and frozen into a mixture of ice particles and water; the temperature of the expanded low-temperature air is increased;
3) the mixture of the ice particles and the water is sent into an ice storage tank (15) by a seventh pump (27), the solid ice particles with lighter density are layered with the ice water, and the ice water at the bottom is sent into an ice making spray pipe II (142) again by an eighth pump (28);
4) the expanded low-temperature air with the increased temperature after contacting with the ice water in the ice making device (14) is pre-compressed by a first compressor (31) and then further compressed by a second compressor (32), and the compressed air with the increased temperature and pressure enters a second generator (43);
5) the concentrated solution in the first chamber (621) is sent into a concentrated solution storage tank (12) through a first pump (21);
6) the primary water vapor in the first chamber (621) enters the first generator (42), the dilute solution in the dilute solution storage tank (11) is sent out by the second pump (22) and sprayed on the surface of the first generator (42) through the solution spraying pipe (623), the dilute solution is heated and concentrated by the primary water vapor in the first generator (42), the dilute solution becomes secondary water vapor and concentrated solution, the primary water vapor becomes condensed water and flows into the condensed water storage tank (13), and the concentrated solution is sprayed on the surface of the second generator (43) after entering the liquid distribution tank (72);
7) the secondary water vapor is cooled by cooling water in the condenser (41), is condensed into liquid on the outer surface of the condenser (41), enters the condensed water tray (71), and flows into the condensed water storage tank (13);
8) condensed water in the condensed water storage tank (13) is sent into an absorption type refrigerating device (61) by a third pump (23) and sprayed on the outer surface of the evaporator (44) through a first spraying pipe (611) to evaporate and absorb heat, the condensed water becomes water vapor, and return water of an air conditioning system is cooled in the evaporator (44); the backwater of the air conditioning system after being cooled enters a heat exchanger (46) to exchange heat with ice water in the heat exchanger, and is further cooled by the ice water and then is sent back to the air conditioning system;
9) the concentrated solution in the concentrated solution storage tank (12) is sent into a second spraying pipe (612) by a fourth pump (24) and then sprayed on the outer surface of the absorber (45), the water vapor generated by the absorption evaporator (44) becomes a dilute solution, and external cooling water flows in an internal channel of the absorber (45) to take away heat generated in the absorption process;
10) ice water in the ice storage tank (15) is sent into the heat exchanger (46) through the sixth pump (26) to exchange heat with return water of the cooled air conditioning system in the heat exchanger, and then flows back to the ice storage tank (15);
11) and the dilute solution in the refrigerating device (61) enters a dilute solution storage tank (11) through a fifth pump (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810920638.5A CN109282397B (en) | 2018-08-14 | 2018-08-14 | Novel energy storage air conditioning device and method based on air compression refrigeration cycle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810920638.5A CN109282397B (en) | 2018-08-14 | 2018-08-14 | Novel energy storage air conditioning device and method based on air compression refrigeration cycle |
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| CN109282397A CN109282397A (en) | 2019-01-29 |
| CN109282397B true CN109282397B (en) | 2020-06-19 |
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| CN201810920638.5A Active CN109282397B (en) | 2018-08-14 | 2018-08-14 | Novel energy storage air conditioning device and method based on air compression refrigeration cycle |
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| CN113915793B (en) * | 2021-09-27 | 2023-04-11 | 河南科技大学 | Cold accumulation type compression refrigerating system |
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