Cold storage type fluorine pump air conditioning system

Abstract

The utility model discloses a cold accumulation type fluorine pump air conditioning system, which relates to the technical field of air conditioners and comprises an indoor unit part, an outdoor unit part, a fluorine pump, an ice slurry preparation part and an ice slurry cold supply part, the indoor unit part is communicated with the outdoor unit part to form a compression type refrigeration cycle or a compression type heating cycle; the outdoor unit part is communicated with the ice slurry preparation part to form ice slurry preparation circulation; the fluorine pump, the ice slurry cooling part and the indoor unit part are communicated to form ice slurry cooling fluorine pump circulation; the ice slurry cooling part and the indoor unit part are communicated to form ice slurry cooling natural circulation; due to the arrangement of the ice slurry making part and the ice slurry cooling part, the ice slurry making part can be used for making ice slurry in the electricity consumption valley period, the ice slurry cooling part can be used for outputting the cooling capacity of the made ice slurry in the electricity consumption peak period, the energy consumption of the air conditioning system in the electricity consumption peak period is reduced, and power peak regulation is assisted.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technical field especially is related to a kind of cold accumulation type fluorine pump air conditioning system. BACKGROUND

[0002] For perennial cooling supply building such as: data machine room, fluorine pump air conditioner is generally used to maintain indoor temperature and humidity, traditional fluorine pump air conditioner generally uses the composite air conditioning system of fluorine pump and compressor, uses compressor to start air conditioning operation when outdoor air temperature is higher in summer etc., uses fluorine pump to drive air conditioning operation when outdoor temperature is lower in winter etc., fluorine pump drives air conditioning operation, compressor is in shutdown state, utilize the lower temperature of outdoor to maintain indoor temperature and humidity;But traditional fluorine pump air conditioner does not have cold accumulation capacity, even if it is in summer when environmental temperature is higher, it needs to use compressor to maintain indoor temperature and humidity in electricity peak period.

[0003] Therefore people urgently need a kind of cold accumulation type fluorine pump air conditioning system with cold accumulation capacity, which can reduce energy consumption in electricity peak period. SUMMARY

[0004] The utility model discloses a kind of cold accumulation type fluorine pump air conditioning systems, to solve the problems existing in the prior art above, carry out cold accumulation in electricity low period, utilize cold accumulation to output cold quantity in electricity peak period, reduce the energy consumption of air conditioning system in electricity peak period, help power peak shaving.

[0005] To achieve the above-mentioned purpose, the present invention provides the following scheme: the present invention provides a cold storage type fluorine pump air conditioning system, comprising an indoor unit part, an outdoor unit part, a fluorine pump, an ice slurry making part and an ice slurry cooling part; the indoor unit part is connected to the outdoor unit part to form a compression refrigeration cycle or a compression heating cycle; the outdoor unit part is connected to the ice slurry making part to form an ice slurry making cycle, the ice slurry making part comprises an ice slurry generator, an ice slurry storage tank and an ice slurry pump, the ice slurry generator is connected to the two refrigerant ports of the outdoor unit part through a refrigerant inlet and a refrigerant outlet respectively, the cold water inlet of the ice slurry generator is connected to the ice slurry storage tank through the ice slurry pump, and the ice slurry outlet of the ice slurry generator is connected to the ice slurry storage tank; the fluorine pump, the The ice slurry cooling part and the indoor unit part are connected to form an ice slurry cooling fluorine pump circulation, the ice slurry cooling part includes an ice slurry heat exchanger, the ice slurry inlet of the ice slurry heat exchanger is connected to the ice slurry storage tank through the ice slurry pump, the cold water outlet of the ice slurry heat exchanger is connected to the ice slurry storage tank, the refrigerant inlet of the ice slurry heat exchanger is connected to a refrigerant port of the indoor unit part, and the refrigerant outlet of the ice slurry heat exchanger is connected to another refrigerant port of the indoor unit part through the fluorine pump; the ice slurry cooling part and the indoor unit part are connected to form an ice slurry cooling natural circulation, the refrigerant inlet of the ice slurry heat exchanger is connected to a refrigerant port of the indoor unit part, and the refrigerant outlet of the ice slurry heat exchanger is connected to another refrigerant port of the indoor unit part.

[0006] Preferably, the outdoor unit part includes a four-way reversing valve for switching the flow direction of the refrigerant, a compressor and an air-cooled condenser, and the refrigerant inlet of the compressor, the refrigerant outlet of the compressor, the refrigerant port of the indoor unit part and the refrigerant port of the air-cooled condenser are all connected to the four-way reversing valve.

[0007] Preferably, the air-cooled condenser includes a heat exchange coil and a fan, refrigerant flows through the heat exchange coil, and the airflow direction of the fan is arranged toward the heat exchange coil.

[0008] Preferably, the indoor unit part includes at least one indoor unit and a number of first expansion valves matching the indoor units. The two refrigerant ports of the indoor unit are respectively connected to the four-way reversing valve and the refrigerant port of the air-cooled condenser away from the four-way reversing valve. The first expansion valve is arranged on the connecting pipe between the indoor unit and the air-cooled condenser.

[0009] Preferably, the cold storage type fluorine pump air-conditioning system also includes a first refrigerant bypass pipeline and a second refrigerant bypass pipeline, one end of the refrigerant bypass pipeline is connected to a refrigerant port of the outdoor unit part, and the other end is respectively connected to another refrigerant port of the outdoor unit part and a refrigerant port of the indoor unit part, the fluorine pump is arranged in parallel on the branch pipeline connecting the first refrigerant bypass pipeline and the indoor unit part, the ice slurry generator and the ice slurry heat exchanger are respectively arranged in parallel on the first refrigerant bypass pipeline; the second refrigerant bypass pipeline is arranged in parallel with the outdoor unit part; the cold storage type fluorine pump air-conditioning system includes a valve group for switching the cold storage type fluorine pump air-conditioning system to a compression refrigeration cycle mode or a compression heating cycle mode, an ice slurry production cycle mode, an ice slurry cooling fluorine pump cycle mode, a compression refrigeration cycle and an ice slurry production cycle jointly opened mode, and an ice slurry cooling natural cycle mode.

[0010] Preferably, the water outlet of the ice slurry storage tank is connected to the ice slurry circulation pipeline through the ice slurry pump, the water outlet of the ice slurry circulation pipeline is connected to the water inlet of the ice slurry storage tank, the ice slurry generator and the ice slurry heat exchanger are respectively arranged in parallel on the ice slurry circulation pipeline, and the ice slurry circulation pipeline, the parallel pipeline between the ice slurry generator and the ice slurry circulation pipeline, and the parallel pipeline between the ice slurry heat exchanger and the ice slurry circulation pipeline are all provided with valves for switching the ice slurry circulation pipeline to be connected to the ice slurry generator, or the ice slurry circulation pipeline to be connected to the ice slurry heat exchanger.

[0011] Preferably, the water outlet of the ice slurry storage tank is arranged on one side of the bottom, and the water inlet of the ice slurry storage tank is located in the middle position of the bottom of the ice slurry storage tank. A water inlet pipe is provided at the water inlet of the ice slurry storage tank, and the water inlet pipe extends into the ice slurry storage tank. The extended end of the water inlet pipe is located in the middle position of the top of the inner cavity of the ice slurry storage tank.

[0012] Preferably, a laser sensor for detecting whether the ice slurry is full is provided at the bottom of the inner peripheral wall of the ice slurry storage tank.

[0013] Preferably, the ice slurry generator includes a cold water channel and a refrigerant channel, the refrigerant channel is sleeved on the outer peripheral side of the cold water channel, the inner cavity of the cold water channel is cylindrical, a rotating shaft is coaxially arranged in the cold water channel, the rotating shaft is connected to the driving device, and a scraper is arranged on the peripheral side of the rotating shaft for scraping off the ice crystals condensed on the inner wall of the cold water channel.

[0014] Preferably, a second expansion valve is provided at the refrigerant inlet of the ice slurry generator.

[0015] Compared with the prior art, the present invention has achieved the following technical effects:

[0016] Due to the setting of the ice slurry production part and the ice slurry cooling part, the ice slurry production part can be used to produce ice slurry during the low electricity consumption period, and the ice slurry cooling part can be used to output the cooling capacity of the produced ice slurry during the peak electricity consumption period, saving the energy consumption of the air-conditioning system during the peak electricity consumption period and helping to peak-shaving the electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a system diagram of the cold storage type fluorine pump air conditioning system in the embodiment of the utility model;

[0019] Figure 2 This is a refrigerant flow diagram in the compression refrigeration cycle mode in an embodiment of the present utility model;

[0020] Figure 3 This is a refrigerant flow diagram in the compression heating cycle mode in an embodiment of the present utility model;

[0021] Figure 4 This is a refrigerant flow diagram in the ice slurry production cycle mode in an embodiment of the present invention;

[0022] Figure 5 This is a refrigerant flow diagram in a mode where the compression refrigeration cycle and the ice slurry production cycle are both turned on in an embodiment of the present utility model;

[0023] Figure 6 This is a refrigerant flow diagram in the ice slurry cooling fluorine pump circulation mode in the embodiment of the present utility model;

[0024] Figure 7 This is a refrigerant flow diagram in the natural circulation mode of ice slurry cooling in an embodiment of the present utility model;

[0025] Figure 8 This is a structural diagram of an ice slurry generator in an embodiment of the present utility model;

[0026] Figure 9 This is a structural diagram of an ice slurry storage tank in an embodiment of the present utility model;

[0027] Among them, 101, fluorine pump; 200, indoor unit part; 201, first expansion valve; 202, indoor unit; 300, outdoor unit part; 301, four-way reversing valve; 302, compressor; 303, air-cooled condenser; 400, ice slurry cold storage part; 401, second expansion valve; 402, ice slurry generator; 4021, cold water channel; 4022, refrigerant channel; 4023, scraper; 4024, rotating shaft; 403, ice slurry heat exchanger; 404, ice slurry storage tank; 4041, water inlet pipe; 4042, laser sensor; 405, ice Slurry pump; 501, valve one; 502, valve two; 503, valve three; 504, valve four; 505, valve five; 506, valve six; 507, valve seven; 508, valve eight; 509, valve nine; 510, valve ten; 511, valve eleven; 512, valve twelve; 513, valve thirteen; 514, valve fourteen; 515, valve fifteen; 516, valve sixteen; 601, first valve; 602, second valve; 603, third valve; 604, fourth valve; 605, fifth valve; 606, sixth valve. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] The purpose of this utility model is to provide a cold storage type fluorine pump air conditioning system to solve the problems existing in the prior art. It can store cold during the off-peak period of electricity consumption and use the stored cold to output cold energy during the peak period of electricity consumption, thereby reducing the energy consumption of the air conditioning system during the peak period of electricity consumption and helping to regulate the peak power consumption.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0031] Please refer to Figures 1 to 9As shown, a cold storage type fluorine pump air conditioning system is provided, comprising an indoor unit part 200, an outdoor unit part 300, a fluorine pump 101, an ice slurry production part and an ice slurry cooling part, the ice slurry production part and the ice slurry cooling part can be collectively referred to as an ice slurry cooling part 400; the indoor unit part 200, the outdoor unit part 300, the fluorine pump 101, the ice slurry production part and the ice slurry cooling part can be combined to obtain the following different cycles: the indoor unit part 200 is connected to the outdoor unit part 300 to form a compression refrigeration cycle or a compression heating cycle, which The cycle is a conventional air conditioning cooling and heating cycle; the outdoor unit part 300 is connected to the ice slurry making part to form an ice slurry making cycle, and the ice slurry making part includes an ice slurry generator 402, an ice slurry storage tank 404 and an ice slurry pump 405. The ice slurry generator 402 is connected to the two refrigerant ports of the outdoor unit part 300 through the refrigerant inlet and the refrigerant outlet respectively, the cold water inlet of the ice slurry generator 402 is connected to the ice slurry storage tank 404 through the ice slurry pump 405, and the ice slurry outlet of the ice slurry generator 402 is connected to the ice slurry storage tank 404. This cycle During the off-peak period of electricity consumption, ice slurry can be produced by using the ice slurry production part; the fluorine pump 101, the ice slurry cooling part and the indoor unit part 200 are connected to form an ice slurry cooling fluorine pump cycle, the ice slurry cooling part includes an ice slurry heat exchanger 403, the ice slurry inlet of the ice slurry heat exchanger 403 is connected to the ice slurry storage tank 404 through the ice slurry pump 405, the cold water outlet of the ice slurry heat exchanger 403 is connected to the ice slurry storage tank 404, the refrigerant inlet of the ice slurry heat exchanger 403 is connected to a refrigerant port of the indoor unit part 200, and the refrigerant outlet of the ice slurry heat exchanger 403 is connected to the refrigerant port of the indoor unit part 200. The fluorine pump 101 is connected to another refrigerant port of the indoor unit part 200. This cycle can use the ice slurry cooling part to output the cooling capacity of the produced ice slurry during peak electricity consumption, thereby reducing the energy consumption of the air-conditioning system during peak electricity consumption and assisting in power peak regulation; the ice slurry cooling part and the indoor unit part 200 are connected to form a natural cycle of ice slurry cooling, the refrigerant inlet of the ice slurry heat exchanger 403 is connected to a refrigerant port of the indoor unit part 200, and the refrigerant outlet of the ice slurry heat exchanger 403 is connected to another refrigerant port of the indoor unit part 200.

[0032] The outdoor unit part 300 includes a four-way reversing valve 301, a compressor 302 and an air-cooled condenser 303. The refrigerant inlet of the compressor 302, the refrigerant outlet of the compressor 302, the refrigerant port of the indoor unit part 200 and the refrigerant port of the air-cooled condenser 303 are all connected to the four-way reversing valve 301. The four-way reversing valve 301 is used to switch whether the refrigerant flowing out of the compressor 302 flows directly to the air-cooled condenser 303 or directly to the indoor unit part 200.

[0033] The air-cooled condenser 303 includes a heat exchange coil and a fan. The heat exchange coil is connected to the four-way reversing valve 301 for circulating the refrigerant. The airflow direction of the fan is set toward the heat exchange coil, so that forced convection is formed on the surface of the heat exchange coil, thereby improving the heat exchange effect of the heat exchange coil. In this embodiment, the heat exchange coil is located on the suction side of the fan, that is, the air flow first flows through the heat exchange coil and then through the fan.

[0034] The indoor unit part 200 includes at least one indoor unit 202 and a number of first expansion valves 201 matching the indoor units 202. The two refrigerant ports of the indoor unit part 200 are respectively connected to the four-way reversing valve 301 and the refrigerant port of the air-cooled condenser 303 away from the four-way reversing valve 301. The first expansion valve 201 is arranged on the connecting pipe between the indoor unit 202 and the air-cooled condenser 303; when multiple indoor units 202 are set, the multiple indoor units 202 are arranged in parallel.

[0035] The compression refrigeration cycle, the ice slurry production cycle and the ice slurry cooling fluorine pump cycle can be set independently or in a coupled arrangement. When coupled, the cold storage fluorine pump air-conditioning system also includes a first refrigerant bypass pipeline and a second refrigerant bypass pipeline. One end of the refrigerant bypass pipeline is connected to a refrigerant port of the outdoor unit part 300, and the other end is respectively connected to another refrigerant port of the outdoor unit part 300 and a refrigerant port of the indoor unit part 200. A fluorine pump 101 is arranged in parallel on the branch pipeline connecting the first refrigerant bypass pipeline and the indoor unit part 200, and an ice slurry generator 402 and an ice slurry heat exchanger 403 are respectively arranged in parallel on the first refrigerant bypass pipeline; the second refrigerant bypass pipeline is arranged in parallel with the outdoor unit part 300; the cold storage fluorine pump air-conditioning system also includes a first refrigerant bypass pipeline and a second refrigerant bypass pipeline. The pump air conditioning system includes a valve group, which includes several valves, namely valve one 501, valve two 502, valve three 503, valve four 504, valve five 505, valve six 506, valve seven 507, valve eight 508, valve nine 509, valve ten 510, valve eleven 511, valve twelve 512, valve thirteen 513, valve fourteen 514, valve fifteen 515, and valve sixteen 516. The valves can be solenoid valves. Several valves are controlled by opening and closing to switch the cold storage fluorine pump air conditioning system to a compression refrigeration cycle mode or a compression heating cycle mode, an ice slurry production cycle mode, an ice slurry cooling fluorine pump cycle mode, a compression refrigeration cycle and an ice slurry production cycle jointly opened mode, and an ice slurry cooling natural cycle mode.

[0036] The water outlet of the ice slurry storage tank 404 is communicated with an ice slurry circulation pipeline through an ice slurry pump 405, the water outlet of the ice slurry circulation pipeline is communicated with the water inlet of the ice slurry storage tank 404, the ice slurry generator 402 and the ice slurry heat exchanger 403 are respectively and parallelly arranged on the ice slurry circulation pipeline, a valve group is arranged on the ice slurry circulation pipeline, the parallel pipeline of the ice slurry generator 402 and the ice slurry circulation pipeline and the parallel pipeline of the ice slurry heat exchanger 403 and the ice slurry circulation pipeline, and the valve group comprises a first valve 601, a second valve 602, a third valve 603, a fourth valve 604, a fifth valve 605 and a sixth valve 606, and the valves can be solenoid valves, which are used to switch the communication between the ice slurry circulation pipeline and the ice slurry generator 402 or the communication between the ice slurry circulation pipeline and the ice slurry heat exchanger 403.

[0037] Due to the mixed state of the ice slurry and the cold water, the cold water is located below the ice slurry, so the water outlet of the ice slurry storage tank 404 is arranged at one side of the bottom, the water inlet of the ice slurry storage tank 404 is located at the middle position of the bottom of the ice slurry storage tank 404, and a water inlet pipe 4041 is arranged at the water inlet of the ice slurry storage tank 404, the water inlet pipe 4041 extends into the ice slurry storage tank 404, and the extension end of the water inlet pipe 4041 is located at the middle position of the top of the inner cavity of the ice slurry storage tank 404.

[0038] In order to prevent the ice slurry from being continuously produced after being full, a laser sensor 4042 for detecting whether the ice slurry is full is arranged at the bottom of the inner circumferential wall of the ice slurry storage tank 404, when the bottom of the ice slurry pile is located between the transmitter and the receiver of the laser sensor 4042, the ice slurry will affect the normal path of the laser, the receiver cannot accurately receive the laser emitted by the transmitter, at this time, it is determined that the ice slurry is full, and the ice slurry generator 402 can be stopped to continuously produce ice slurry.

[0039] The ice slurry generator 402 specifically comprises a cold water channel 4021 and a refrigerant channel 4022, the refrigerant channel 4022 is sleeved on the outer circumferential side of the cold water channel 4021, the inner cavity of the cold water channel 4021 is cylindrical, a rotating shaft 4024 is coaxially arranged in the cold water channel 4021, the rotating shaft 4024 is connected with a driving device, a scraper 4023 for scraping off the ice crystals condensed on the inner wall surface of the cold water channel 4021 is arranged on the circumferential side of the rotating shaft 4024, one end of the scraper 4023 away from the rotating shaft 4024 is in sliding contact with the inner wall surface of the cold water channel 4021, and the ice crystals condensed on the inner wall surface of the cold water channel 4021 after the cold water exchanges heat with the refrigerant can be scraped off when the rotating shaft 4024 drives the scraper 4023 to rotate.

[0040] In the embodiment, a second expansion valve 401 is arranged at the refrigerant inlet of the ice slurry generator 402.

[0041] In the embodiment, the operation principles of each mode of the cold storage type fluorine pump air conditioning system are as follows:

[0042] The compression cycle mode includes a compression refrigeration cycle mode and a compression heating cycle mode. When the compression refrigeration cycle mode is started, the compressor 302 is used to drive the air conditioning system to refrigerate and circulate, and cool the space where the indoor unit 202 is located. In this working mode, valve three 503, valve five 505, valve seven 507, valve nine 509, and valve ten 510 are in the on state, and the remaining valves are closed. There is no requirement for the first valve 601 to the sixth valve 606 to be on or off. The slider of the four-way reversing valve 301 is placed at the left end, the compressor 302 is turned on, and at least one indoor unit 202 is turned on. In this working mode, the gaseous refrigerant flowing out of the indoor unit 202 After passing through the right chamber of the four-way reversing valve 301, it enters the compressor 302. After being pressurized and heated in the compressor 302 and driving the refrigerant to flow, it passes through the left chamber of the four-way reversing valve 301 and enters the air-cooled condenser 303. In the air-cooled condenser 303, the high-temperature and high-pressure gaseous refrigerant releases heat to the outdoor air through indirect heat exchange. At this time, the gaseous refrigerant that releases heat is liquefied into liquid refrigerant. The liquid refrigerant is in the indoor unit part 200. When it flows through the first expansion valve 201, the pressure decreases and it changes into a low-temperature liquid refrigerant. It then indirectly exchanges heat with the air in the indoor unit 202, absorbs heat from the air, vaporizes into gaseous refrigerant, and enters the next cycle.

[0043] When the compression heating cycle mode is started, the compressor 302 is used to drive the air conditioning system to run the heating cycle and supply heat to the space where the indoor unit 202 is located. In this working mode, valve three 503, valve five 505, valve seven 507, valve nine 509, and valve ten 510 are in the conducting state, and the remaining valves are closed. The conducting or closing of the first valve 601 to the sixth valve 606 is not required. The slider of the four-way reversing valve 301 is placed at the right end, the compressor 302 is turned on, and at least one indoor unit 202 is turned on. In this working mode, the low-temperature low-temperature liquid flowing out of the first expansion valve 201 The liquid refrigerant with high pressure exchanges heat indirectly with the outdoor air in the air-cooled condenser 303. At this time, the liquid refrigerant absorbs the heat in the air and changes into gaseous refrigerant. The gaseous refrigerant passes through the left chamber of the four-way reversing valve 301 and enters the compressor 302. After being pressurized and heated in the compressor 302 and driving the refrigerant to flow, it flows through the right chamber of the four-way reversing valve 301. Then, the high-temperature and high-pressure gaseous refrigerant indirectly exchanges heat with the air in the indoor unit 202. The gaseous refrigerant transfers heat to the air and changes into liquid refrigerant. It flows through the air-conditioning expansion valve to reduce the pressure and enters the next cycle.

[0044] When the ice slurry production cycle mode is started, the compressor 302 is used to drive the air conditioning system to run a refrigeration cycle, and ice slurry is produced during the low electricity consumption period to achieve cold storage. In this working mode, valve six 506, valve seven 507, valve nine 509, valve ten 510, valve eleven 511, valve thirteen 513, valve fifteen 515, the first valve 601, the third valve 603, and the fifth valve 605 are in the on state, and the remaining valves are closed. The slider of the four-way reversing valve 301 is placed at the left end, the compressor 302, the ice slurry pump 405, and the ice slurry generator 402 are turned on, and all indoor units 202 are turned off; in this working mode, the gaseous refrigerant flowing out of the ice slurry generator 402 flows through the right chamber of the four-way reversing valve 301 and then enters the compressor 302. After being pressurized and heated in the compressor 302 and driving the refrigerant to flow, it passes through the left chamber of the four-way reversing valve 301. After entering the room, it enters the air-cooled condenser 303. In the air-cooled condenser 303, the high-temperature and high-pressure gaseous refrigerant releases heat to the outdoor air through indirect heat exchange. At this time, the gaseous refrigerant that releases heat is liquefied into liquid refrigerant. The pressure of the liquid refrigerant decreases when it flows through the second expansion valve 401. After it changes into a low-temperature liquid refrigerant, it indirectly exchanges heat with cold water in the ice slurry generator 402, absorbs heat in the cold water, and vaporizes into gaseous refrigerant before entering the next cycle; in this working mode, the ice slurry pump 405 draws cold water from the bottom of the ice slurry storage tank 404, and the cold water enters the ice slurry generator 402 to exchange heat with the refrigerant. The cold water releases heat to the refrigerant in the ice slurry generator 402 and becomes ice slurry, which flows into and is stored in the ice slurry storage tank 404. Since the density of ice slurry is lower than that of cold water, generally, ice slurry is stored in the upper part of the ice slurry storage tank 404, and cold water is stored in the lower part of the ice slurry storage tank 404.

[0045] When the ice slurry cooling fluorine pump cycle is started, the ice slurry stored in the ice slurry storage tank 404 is used to cool the space where the indoor unit 202 is located during the peak period of electricity consumption, thereby reducing the energy consumption of the air-conditioning system during the peak period of electricity consumption. In this working mode, valve one 501, valve two 502, valve five 505, valve eight 508, valve ten 510, valve twelve 512, valve fourteen 514, valve sixteen 516, second valve 602, fourth valve 604, and sixth valve 606 are in the on state, and the remaining valves are closed. The position of the slider of the four-way reversing valve 301 is not required, the fluorine pump 101 and the ice slurry pump 405 are turned on, and at least one indoor unit 202 is turned on; in this working mode The gaseous refrigerant flowing out of the indoor unit 202 indirectly exchanges heat with the ice slurry in the ice slurry heat exchanger 403. At this time, the gaseous refrigerant releases heat and liquefies into liquid refrigerant. After the liquid refrigerant increases its pressure in the fluorine pump 101 and overcomes the pipeline flow resistance, it adjusts its pressure when flowing through the first expansion valve 201 in the indoor unit part 200, and indirectly exchanges heat with the air in the indoor unit 202, absorbs heat from the air, and enters the next cycle after being vaporized into gaseous refrigerant; in this working mode, the ice slurry pump 405 draws cold water from the bottom of the ice slurry storage tank 404. The cold water absorbs the heat of the refrigerant in the ice slurry heat exchanger 403 and heats up, then flows into and is stored in the ice slurry storage tank 404.

[0046] When the compression refrigeration cycle and the ice slurry preparation cycle are started together, the compressor 302 is used to drive the air conditioning system refrigeration cycle to run, and the ice slurry generator 402 and the indoor unit 202 are run at the same time, so that ice slurry and air conditioning cooling are prepared at the same time, and the system guarantee rate is improved. In this working mode, the valve three 503, the valve five 505, the valve six 506, the valve seven 507, the valve nine 509, the valve ten 510, the valve eleven 511, the valve thirteen 513, the valve fifteen 515, the first valve 601, the third valve 603, and the fifth valve 605 are in the on state, and the remaining valves are closed. The slider of the four-way reversing valve 301 is placed at the left end, the compressor 302, the ice slurry pump 405, and the ice slurry generator 402 are started, and at least one indoor unit 202 is started. In this working mode, the gaseous refrigerant flowing out of the ice slurry generator 402 and the indoor unit 202 is collected and flows through the right chamber of the four-way reversing valve 301 into the compressor 302. After being pressurized and heated in the compressor 302 and driving the refrigerant to flow, it enters the air-cooled condenser 303 through the left chamber of the four-way reversing valve 301. In the air-cooled condenser 303, the high-temperature and high-pressure gaseous refrigerant releases heat to the outdoor air through indirect heat exchange, and the gaseous refrigerant releases heat and liquefies into liquid refrigerant. The liquid refrigerant is divided into two parts after flowing out of the air-cooled condenser 303, one part enters the ice slurry storage part 400, and the remaining part enters the indoor unit part 200, and the distribution ratio of the refrigerant can be changed by adjusting the opening of the valve three 503 and the valve eleven 511. The liquid refrigerant in the ice slurry storage part 400 is reduced in pressure when flowing through the second expansion valve 401, changes into low-temperature liquid refrigerant, and is indirectly heated with cold water in the ice slurry generator 402 to absorb heat from the cold water and vaporize into gaseous refrigerant. The liquid refrigerant in the indoor unit part 200 is reduced in pressure when flowing through the first expansion valve 201, changes into low-temperature liquid refrigerant, and is indirectly heated with air in the indoor unit 202 to absorb heat from the air and vaporize into gaseous refrigerant, which is mixed with the gaseous refrigerant flowing out of the ice slurry generator 402 and enters the next cycle. In this working mode, the ice slurry pump 405 draws cold water from the bottom of the ice slurry storage tank 404, the cold water enters the ice slurry generator 402 to exchange heat with the refrigerant, the cold water releases heat to the refrigerant in the ice slurry generator 402 and becomes ice slurry, and flows into and is stored in the ice slurry storage tank 404.

[0047] When the ice slurry cooling natural circulation mode is started, it is necessary to ensure that the placement of the ice slurry cold storage part 400 is significantly higher than the indoor unit part 200. The refrigerant will form a natural circulation in the refrigerant pipeline due to the gravity difference caused by the phase change during circulation. When the fluorine pump 101 is not started during the peak power consumption period, the ice slurry stored in the ice slurry storage tank 404 is still used to cool the space where the indoor unit 202 is located, further reducing the energy consumption of the air-conditioning system during the peak power consumption period. In this working mode, valve four 504, valve five 505, valve eight 508, valve ten 510, valve twelve 512, valve fourteen 514, valve sixteen 516, the second valve 602, the fourth valve 604, and the sixth valve 606 are in the on state, and the remaining valves are closed. There is no requirement for the position of the slider of the reversing valve 301. The ice slurry pump 405 is turned on and at least one indoor unit 202 is turned on. In this working mode, the gaseous refrigerant flowing out of the indoor unit 202 indirectly exchanges heat with the ice slurry in the ice slurry heat exchanger 403. At this time, the gaseous refrigerant releases heat and liquefies into liquid refrigerant. The liquid refrigerant is in the indoor unit part 200, and the pressure is adjusted when it flows through the first expansion valve 201. It indirectly exchanges heat with the air in the indoor unit 202, absorbs heat in the air, and enters the next cycle after being vaporized into gaseous refrigerant. In this working mode, the ice slurry pump 405 draws cold water from the bottom of the ice slurry storage tank 404. The cold water absorbs the heat of the refrigerant in the ice slurry heat exchanger 403 and heats up, then flows into and is stored in the ice slurry storage tank 404.

[0048] Adaptive changes based on actual needs are all within the protection scope of this utility model.

[0049] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0050] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A cold storage type fluorine pump air conditioning system, characterized in that: It includes indoor unit, outdoor unit, fluorine pump, ice slurry preparation part and ice slurry cooling part; The indoor unit part is connected to the outdoor unit part to form a compression refrigeration cycle or a compression heating cycle; The outdoor unit part is connected to the ice slurry production part to form an ice slurry production cycle. The ice slurry production part includes an ice slurry generator, an ice slurry storage tank and an ice slurry pump. The ice slurry generator is connected to the two refrigerant ports of the outdoor unit part through a refrigerant inlet and a refrigerant outlet respectively. The cold water inlet of the ice slurry generator is connected to the ice slurry storage tank through the ice slurry pump, and the ice slurry outlet of the ice slurry generator is connected to the ice slurry storage tank. The fluorine pump, the ice slurry cooling part and the indoor unit part are connected to form an ice slurry cooling fluorine pump cycle, the ice slurry cooling part includes an ice slurry heat exchanger, the ice slurry inlet of the ice slurry heat exchanger is connected to the ice slurry storage tank through the ice slurry pump, the cold water outlet of the ice slurry heat exchanger is connected to the ice slurry storage tank, the refrigerant inlet of the ice slurry heat exchanger is connected to a refrigerant port of the indoor unit part, and the refrigerant outlet of the ice slurry heat exchanger is connected to another refrigerant port of the indoor unit part through the fluorine pump; The ice slurry cooling part and the indoor unit part are connected to form an ice slurry cooling natural cycle, the refrigerant inlet of the ice slurry heat exchanger is connected to one refrigerant port of the indoor unit part, and the refrigerant outlet of the ice slurry heat exchanger is connected to another refrigerant port of the indoor unit part.

2. The cold storage type fluorine pump air conditioning system according to claim 1, characterized in that: The outdoor unit part includes a four-way reversing valve for switching the flow direction of the refrigerant, a compressor and an air-cooled condenser. The refrigerant inlet of the compressor, the refrigerant outlet of the compressor, the refrigerant port of the indoor unit part and the refrigerant port of the air-cooled condenser are all connected to the four-way reversing valve.

3. The cold storage type fluorine pump air conditioning system according to claim 2, characterized in that: The air-cooled condenser includes a heat exchange coil and a fan. Refrigerant flows through the heat exchange coil, and the air flow direction of the fan is set toward the heat exchange coil.

4. The cold storage type fluorine pump air conditioning system according to claim 2, characterized in that: The indoor unit part includes at least one indoor unit and a number of first expansion valves matching the indoor units. The two refrigerant ports of the indoor unit are respectively connected to the four-way reversing valve and the refrigerant port of the air-cooled condenser away from the four-way reversing valve. The first expansion valve is arranged on the connecting pipe between the indoor unit and the air-cooled condenser.

5. The cold storage type fluorine pump air conditioning system according to claim 1, characterized in that: The cold storage type fluorine pump air conditioning system also includes a first refrigerant bypass pipeline and a second refrigerant bypass pipeline, one end of the refrigerant bypass pipeline is connected to a refrigerant port of the outdoor unit part, and the other end is respectively connected to another refrigerant port of the outdoor unit part and a refrigerant port of the indoor unit part. The fluorine pump is arranged in parallel on the branch pipeline connecting the first refrigerant bypass pipeline and the indoor unit part, and the ice slurry generator and the ice slurry heat exchanger are respectively arranged in parallel on the first refrigerant bypass pipeline; the second refrigerant bypass pipeline is arranged in parallel with the outdoor unit part; the cold storage type fluorine pump air conditioning system includes a valve group for switching the cold storage type fluorine pump air conditioning system to a compression refrigeration cycle mode or a compression heating cycle mode, an ice slurry production cycle mode, an ice slurry cooling fluorine pump cycle mode, a compression refrigeration cycle and an ice slurry production cycle jointly opened mode, and an ice slurry cooling natural cycle mode.

6. The cold storage type fluorine pump air conditioning system according to claim 5, characterized in that: The water outlet of the ice slurry storage tank is connected to the ice slurry circulation pipeline through the ice slurry pump, and the water outlet of the ice slurry circulation pipeline is connected to the water inlet of the ice slurry storage tank. The ice slurry generator and the ice slurry heat exchanger are respectively arranged in parallel on the ice slurry circulation pipeline. The ice slurry circulation pipeline, the parallel pipeline between the ice slurry generator and the ice slurry circulation pipeline, and the parallel pipeline between the ice slurry heat exchanger and the ice slurry circulation pipeline are all provided with valves for switching the ice slurry circulation pipeline to be connected to the ice slurry generator, or the ice slurry circulation pipeline to be connected to the ice slurry heat exchanger.

7. The cold storage type fluorine pump air conditioning system according to claim 1, characterized in that: The water outlet of the ice slurry storage tank is arranged on one side of the bottom, and the water inlet of the ice slurry storage tank is located in the middle position of the bottom of the ice slurry storage tank. A water inlet pipe is provided at the water inlet of the ice slurry storage tank, and the water inlet pipe extends into the ice slurry storage tank. The extended end of the water inlet pipe is located in the middle position of the top of the inner cavity of the ice slurry storage tank.

8. The cold storage type fluorine pump air conditioning system according to claim 1, characterized in that: A laser sensor for detecting whether the ice slurry is full is provided at the bottom of the inner peripheral wall of the ice slurry storage tank.

9. The cold storage type fluorine pump air conditioning system according to claim 1, characterized in that: The ice slurry generator includes a cold water channel and a refrigerant channel. The refrigerant channel is sleeved on the outer peripheral side of the cold water channel. The inner cavity of the cold water channel is cylindrical. A rotating shaft is coaxially arranged in the cold water channel. The rotating shaft is connected to a driving device. A scraper is arranged on the peripheral side of the rotating shaft for scraping off ice crystals condensed on the inner wall of the cold water channel.

10. The cold storage type fluorine pump air conditioning system according to claim 1, characterized in that: A second expansion valve is provided at the refrigerant inlet of the ice slurry generator.

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