WO2024022500A1 - Équipement de stockage et procédé de réfrigération associé - Google Patents

Équipement de stockage et procédé de réfrigération associé Download PDF

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Publication number
WO2024022500A1
WO2024022500A1 PCT/CN2023/109874 CN2023109874W WO2024022500A1 WO 2024022500 A1 WO2024022500 A1 WO 2024022500A1 CN 2023109874 W CN2023109874 W CN 2023109874W WO 2024022500 A1 WO2024022500 A1 WO 2024022500A1
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WO
WIPO (PCT)
Prior art keywords
refrigerant
pump
storage device
liquid pipeline
refrigerator
Prior art date
Application number
PCT/CN2023/109874
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English (en)
Chinese (zh)
Inventor
肖家华
于艳翠
Original Assignee
山前（珠海）医疗科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 山前（珠海）医疗科技有限公司 filed Critical 山前（珠海）医疗科技有限公司
Publication of WO2024022500A1 publication Critical patent/WO2024022500A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B23/00—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F25B40/06—Superheaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D15/00—Devices not covered by group F25D11/00 or F25D13/00, e.g. non-self-contained movable devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine

Definitions

  • the present application relates to the field of ultra-low temperature storage technology, and in particular to a storage device and its refrigeration method.
  • Storage tanks are usually used to store fluid refrigerants.
  • Storage tanks are generally double-walled, with a vacuum interlayer between the two walls, and the inner wall and outer layer are silver-plated.
  • the main purpose of this application is to provide a storage device and a refrigeration method thereof, aiming to increase the time the storage device stores fluid media and solve the problem of waste caused by fluid volatilization.
  • this application proposes a storage device, including:
  • a pump liquid pipeline which includes a first pump liquid pipeline and a second pump liquid pipeline arranged in parallel with the first pump liquid pipeline;
  • Refrigeration machine the input end of the refrigerator is connected with the output end of the pump liquid pipeline, for generating cold energy and performing heat exchange with the secondary refrigerant;
  • a gas-liquid separator the input end of the gas-liquid separator is connected to the output end of the refrigerator, for separating the brine into a liquid phase refrigerant and a gas phase refrigerant;
  • the storage device includes an inner shell and an outer shell.
  • the inner shell is provided with a storage cavity for storing fluid media.
  • the inner shell and the outer shell are surrounded by a heat exchange channel.
  • the input end of the heat exchange channel is connected to the gas.
  • the output end of the liquid separator is connected, and the output end of the heat exchange channel is connected with the input end of the pump liquid pipeline, The heat of the fluid medium is absorbed and taken away by the liquid phase refrigerant or the gas phase refrigerant.
  • the storage device further includes an integral thermal insulation device, and the cold end of the refrigerator and the gas-liquid separator are both arranged in the integral thermal insulation device.
  • the overall heat insulation device is a vacuum heat insulation box or an airgel heat insulation box.
  • a heat exchange component is provided in the heat exchange channel to enable heat exchange between the liquid phase refrigerant or the gas phase refrigerant and the fluid medium.
  • the first pump liquid pipeline includes a first refrigerant pump, a regenerator, a first valve and a second valve
  • the regenerator is provided in the overall heat insulation device, and the regenerator
  • the cold end input port of the heater is connected to the liquid outlet end of the storage device, and the cold end output port of the regenerator is connected to the input end of the first refrigerant pump;
  • the hot end of the regenerator The input port is connected to the output end of the first refrigerant pump, the hot end output port of the regenerator is connected to the input end of the refrigerator, and the first valve is located on the heat end of the regenerator.
  • the second valve is provided on the pipe between the cold end of the regenerator and the connection point of the second pump liquid pipeline;
  • the cold end of the regenerator is used to preheat the refrigerant; the hot end of the regenerator is used to precool the refrigerant.
  • the second pump liquid pipeline includes a second refrigerant pump, the second refrigerant pump is disposed in the overall heat insulation device, and the input end of the second refrigerant pump is connected to The liquid outlet end of the storage device is connected, and the output end of the second refrigerant pump is connected with the input end of the refrigerator.
  • a temperature sensor is provided on the pipeline between the refrigerator and the gas-liquid separator for detecting the temperature of the secondary refrigerant output from the output end of the refrigerator.
  • this application also proposes a refrigeration method, using the storage device as mentioned above, including the following steps:
  • the gas-liquid separator Control the gas-liquid separator to separate the cooled refrigerant into a liquid phase refrigerant and a gas phase refrigerant, and pass the liquid phase refrigerant or the gas phase refrigerant into the storage device.
  • the heat channel absorbs heat from the storage medium inside it;
  • the first pump liquid pipeline is switched to the second pump liquid pipeline, so that the brine refrigerant flows back to the second part of the second pump liquid pipeline through the storage device.
  • Refrigerant pump
  • the refrigerator and the second refrigerant pump are turned off in sequence.
  • the first pump liquid pipeline is switched to the second pump liquid pipeline according to the temperature detection value, so that the brine refrigerant flows back to the second pump through the storage device.
  • the steps of liquid pipeline include:
  • the second valve is closed.
  • the step of starting the refrigerator to generate cold energy and perform heat exchange with the secondary refrigerant to cool the secondary refrigerant to the target temperature further includes:
  • the step of controlling the return of the heat-absorbed brine to the first pump liquid pipeline through the storage device specifically includes:
  • the storage device includes a pump liquid pipeline, a refrigerator, a gas-liquid separator and a storage device;
  • the pump liquid pipeline includes a first pump liquid pipeline and a first pump liquid pipeline arranged in parallel with the first pump liquid pipeline.
  • the second pump liquid pipeline the input end of the refrigerator is connected to the output end of the pump liquid pipeline to generate cold energy and conduct heat exchange with the secondary refrigerant; the input end of the gas-liquid separator is connected to the output end of the refrigerator The output end is connected to separate the refrigerant into a liquid phase refrigerant and a gas phase refrigerant;
  • the storage device includes an inner shell and an outer shell, the inner shell is provided with a storage cavity for storing fluid media, and the inner shell and the outer shell are surrounded by It is assumed that a heat exchange channel is formed, the input end of the heat exchange channel is connected to the output end of the gas-liquid separator, and the output end of the heat exchange channel is connected to the input end of the pump liquid pipeline to pass the liquid phase refrigerant or the gas phase refrigerant.
  • the refrigerant Absorbs and removes heat from the fluid medium.
  • the refrigerant can be separated into liquid phase refrigerant and gas phase refrigerant through the gas-liquid separator, and then one of them can be introduced into the heat exchange channel of the storage device, so that it can absorb the heat of the fluid medium in the storage cavity, and
  • the heat-absorbing refrigerant is returned to the refrigerant pump and the refrigerator for circulation cooling, thereby increasing the storage time of the fluid medium in the storage device and solving the problem of waste caused by fluid volatilization. question.
  • Figure 1 is a schematic structural diagram of an embodiment of a storage device according to the present application.
  • FIG. 2 is a schematic flowchart of an embodiment of the refrigeration method of the storage device of the present application.
  • This application proposes a storage device that can be used to store fluid media, which is not limited here.
  • the storage device includes a pump liquid pipeline 10, a refrigerator 20, a gas-liquid separator 30 and a storage device 40;
  • the pump liquid pipeline 10 includes a first pump liquid pipeline 10 and The second pump liquid pipeline 10 is arranged in parallel with the first pump liquid pipeline 10;
  • the input end of the refrigerator 20 is connected with the output end of the pump liquid pipeline 10 for generating cold energy and mixing it with the brine.
  • the input end of the gas-liquid separator 30 is connected with the output end of the refrigerator 20 for separating the refrigerant into a liquid phase refrigerant and a gas phase refrigerant;
  • the storage device 40 includes an inner shell and an outer shell. The shell is provided with a storage cavity 40b for storing fluid media.
  • the inner shell and the outer shell are surrounded by a heat exchange channel 40a.
  • the input end of the heat exchange channel 40a is connected to the output end of the gas-liquid separator 30.
  • the output end of the heat exchange channel 40a is connected to the output end of the gas-liquid separator 30.
  • the input end of the pump liquid pipeline 10 is connected to absorb and take away the heat of the fluid medium through the liquid phase refrigerant or the gas phase refrigerant.
  • the first pump liquid pipeline may be provided with a first refrigerant pump 111 to transport the refrigerant, and the first refrigerant pump 111 may be a conventional pump or the like.
  • the second pump liquid pipeline may be provided with a second refrigerant pump 121 to transport the refrigerant, and the second refrigerant pump 121 may be a cryogenic pump or the like.
  • Both the first valve 113 and the second valve 116 can be solenoid valves, manual valves, etc., and are not limited here.
  • the refrigerator 20 may be a thermoacoustic refrigerator, etc., and the internal circulation medium of the thermoacoustic refrigerator is not limited.
  • the cooling temperature of the refrigerator 20 can be below -100°C, which is not limited here.
  • the secondary refrigerant can be a substance with no boiling point, such as nitrogen.
  • the boiling point of nitrogen is -196°C.
  • the temperature of the secondary refrigerant provided to the storage device 40 by the refrigerator 20 can reach below -200°C.
  • the heat dissipation end of the thermoacoustic refrigerator can be provided with a heat dissipation component.
  • the heat dissipation component can be a fan, a liquid cooling component, or a combination of air cooling and liquid cooling.
  • a heat exchange assembly 41 may be provided in the heat exchange channel 40a of the storage device 40, so that the liquid or gas phase refrigerant accelerates the absorption of heat from the fluid medium in the storage device 40.
  • the efficiency of heat exchange between the brine and the cooled medium in the storage device 40 is improved, thereby further removing heat from the medium in the storage device 40 , increasing the low-temperature storage time, and reducing the volatilization waste of the storage medium.
  • the heat exchange component 41 can be a heat exchange tube, etc., which is not limited here.
  • the cycle refrigeration process is as follows: the cold end cold plate of the refrigerator 20 generates cold energy and performs heat exchange with the secondary refrigerant. After the secondary refrigerant cools down, it enters the gas-liquid separator 30.
  • the gas-liquid separator 30 separates the refrigerant into a liquid phase refrigerant and a gas phase refrigerant.
  • the liquid phase refrigerant or the gas phase refrigerant enters the heat exchange passage 40a of the storage device 40 and can pass through the heat exchange assembly. 41 exchanges heat with the cooled medium in the storage device 40.
  • the brine absorbs heat and flows back to the regenerator 112, and then absorbs heat through the cold side of the regenerator 112 before entering the first brine pump 111 and passing through the second refrigerant pump 111.
  • a refrigerant pump 111 delivers the refrigerant to the hot side of the regenerator 112 to release heat for pre-cooling, and then enters the cold plate of the refrigerator 20, and so on.
  • the cycle refrigeration process is: the cold end cold plate of the refrigerator 20 generates cold energy and performs heat exchange with the secondary refrigerant. After the secondary refrigerant cools down, it enters the gas-liquid separator 30.
  • the gas-liquid separator 30 Separate the refrigerant into a liquid phase refrigerant and a gas phase refrigerant.
  • the liquid phase refrigerant or the gas phase refrigerant enters the heat exchange channel 40a of the storage device 40 and can communicate with the storage device through the heat exchange assembly 41
  • the cooled medium in 40 undergoes heat exchange, and then the refrigerant absorbs heat and flows back to the second refrigerant pump 121, and then is transported to the cold plate of the refrigerator 20 through the second refrigerant pump 121, and so on.
  • the storage device includes a pump liquid pipeline 10, a refrigerator 20, a gas-liquid separator 30 and a storage device 40;
  • the pump liquid pipeline 10 includes the first pump liquid pipeline 10 and the first pump liquid pipeline 10.
  • the second pump liquid pipeline 10 is arranged in parallel with the liquid pipeline 10;
  • the input end of the refrigerator 20 is connected with the output end of the pump liquid pipeline 10 for generating cold energy and performing heat exchange with the secondary refrigerant;
  • the input end of the liquid separator 30 is connected with the output end of the refrigerator 20 for separating the refrigerant into a liquid phase refrigerant and a gas phase refrigerant;
  • the storage device 40 includes an inner shell and an outer shell, and the inner shell is provided with a In the storage cavity 40b that stores the fluid medium, the inner shell and the outer shell are surrounded to form a heat exchange channel 40a.
  • the input end of the heat exchange channel 40a is connected to the output end of the gas-liquid separator 30, and the output end of the heat exchange channel 40a is connected to the pump liquid pipe.
  • the input end of the path 10 is connected to absorb and take away the heat of the fluid medium through the liquid phase refrigerant or the gas phase refrigerant. In this way, gas-liquid separation can be
  • the separator 30 separates the refrigerant into liquid phase and gas phase refrigerant, and then selects one of them and passes it into the heat exchange channel 40a of the storage device 40.
  • the refrigerant absorbs the heat of the fluid medium stored in the storage cavity 40b, and uses The closed circulation pipeline returns the heat-absorbed refrigerant to the first refrigerant pump 111 (or the second refrigerant pump 121) and the refrigerator 20 for circulation cooling, thereby improving the storage capacity of the storage device 40. media time, and solves the problem of waste caused by fluid evaporation.
  • the storage device realizes liquid cooling, which solves the problem of the refrigerant interfering with the use environment or causing instability in the use environment.
  • the storage device adopts the first pump liquid pipeline and the second pump liquid pipeline arranged in parallel, the transfer of brine can be started separately to cool the storage medium, or the transfer of brine can be started at the same time to cool the storage medium.
  • both pipelines are opened at the same time, the flow rate and flow rate of the secondary refrigerant can be greatly increased, thereby improving the refrigeration effect of the storage device.
  • the other pipeline can still continue to work, reducing the frequency of downtime for repairs.
  • the storage device may further include an integral thermal insulation device 50 , and the second refrigerant pump 121 , the cold end of the refrigerator 20 , and the gas-liquid separator 30 are all disposed in the integral thermal insulation device 50 Inside; the overall heat insulation device 50 is a vacuum heat insulation box or an airgel heat insulation box, etc.
  • the heat insulation effect of the storage device is improved, and heat exchange with the outside world can be minimized, thereby ensuring the stability of refrigeration.
  • the first pump liquid pipeline may include a first refrigerant pump 111, a regenerator 112, a first valve 113 and a second valve 116.
  • the regenerator 112 and the first valve 113 can be disposed in the overall heat insulation device 50.
  • the cold end input port of the regenerator 112 is connected to the liquid outlet of the storage device 40, and the cold end output port of the regenerator 112 is connected to the first refrigerant.
  • the input end of the pump 111 is connected; the hot end input port of the regenerator 112 is connected with the output end of the first refrigerant pump 111; the hot end output port of the regenerator 112 is connected with the input end of the refrigerator 20; the first valve 113 is provided on the pipe between the hot end of the regenerator 112 and the connection point of the second pump liquid pipeline, and the second valve 116 is provided on the pipe between the cold end of the regenerator 112 and the connection point of the second pump liquid pipeline.
  • the cold end of the regenerator 112 is used to preheat the refrigerant; the hot end of the regenerator 112 is used to precool the refrigerant.
  • the first refrigerant pump 111 may be a conventional pump or the like.
  • a storage tank 115 may be provided on the input pipeline of the first refrigerant pump 111 for storing the refrigerant, which can stabilize the pressure and effectively ensure the stability of the refrigeration cycle.
  • the second pump liquid pipeline may include a second brine pump 121 .
  • the input end of the second brine pump 121 is connected to the output end of the storage device 40 .
  • the output of pump 121 The output end is connected with the input end of the refrigerator 20 .
  • the second refrigerant pump 121 may be a cryogenic pump or the like.
  • cryopump is a vacuum pump that uses a low-temperature surface to condense gas, also known as a condensation pump.
  • Cryogenic pumps can achieve clean vacuum with the largest pumping rate and the lowest ultimate pressure. They are widely used in the research and production of semiconductors and integrated circuits, as well as molecular beam research, vacuum coating equipment, vacuum surface analysis instruments, ion implanters and space simulation devices, etc. aspect.
  • the first pump liquid pipeline can also be used to pre-cool the brine; the second pump liquid pipeline can also be used to pre-cool the brine. In this way, the cooling efficiency can be further improved.
  • the secondary refrigerant can be transported through the first pump liquid pipeline first.
  • the first pump liquid pipeline is switched to the second secondary refrigerant of the second pump liquid pipeline.
  • the agent pump 121 transports the brine to accelerate the flow of the brine, so that the cooling temperature drops to the target temperature at a faster rate, and reduces the risk of the first pump liquid pipeline and the second pump liquid pipeline being opened at the same time.
  • the energy consumption loss greatly reduces the refrigeration efficiency and saves costs.
  • a temperature sensor 114 is provided on the pipeline between the refrigerator 20 and the gas-liquid separator 30 for detecting the output end of the refrigerator 20 Outputs the temperature of the refrigerant.
  • the refrigeration system can promptly adjust the cooling temperature of the refrigerator 20 according to the cooling temperature detected by the temperature sensor 114 in real time, so that the temperature of the gas phase refrigerant or the liquid phase refrigerant reaches an optimal value to meet the requirements. requirements of different application scenarios.
  • the refrigeration method includes the following steps:
  • Step S10 When obtaining the instruction to start refrigeration, open the first valve and the second valve of the first pump liquid pipeline, and start the first refrigerant pump of the first pump liquid pipeline.
  • the first refrigerant pump 111 can be a conventional pump.
  • the control system of the storage device receives an instruction to start refrigeration from the user, it sequentially controls the first valve 113, the second valve 116, The first brine pump 111 is turned on to start delivering brine to the refrigerator 20 .
  • Step S20 Start the refrigerator to generate cooling capacity and perform heat exchange with the brine to cool the brine to a target temperature.
  • the refrigerator 20 can be a thermoacoustic refrigerator, and the target temperature can be below -100°C. limit.
  • control system controls the refrigerator 20 to start the refrigeration operation and cool the refrigerant to below -100°C, thereby obtaining a gas phase refrigerant and a liquid phase refrigerant.
  • Step S30 control the gas-liquid separator to separate the cooled refrigerant into a liquid phase refrigerant and a gas phase refrigerant, and pass the liquid phase refrigerant or the gas phase refrigerant into the storage
  • the heat exchange channel of the device absorbs the heat of the storage medium inside it.
  • Step S40 Control the heat-absorbed brine to flow back to the first pump liquid pipeline through the storage device.
  • the circulation flow direction of the secondary refrigerant is: the cold end cold plate of the refrigerator 20 generates cold energy and performs heat exchange with the secondary refrigerant. After the secondary refrigerant cools down, it enters the gas-liquid separator 30.
  • the gas-liquid separator 30 Separate the refrigerant into liquid phase and gas phase refrigerant.
  • the liquid phase refrigerant or the gas phase refrigerant enters the heat exchange channel 40a of the storage device 40 and can be absorbed through the heat exchange assembly 41 and the storage device 40.
  • the cooled medium undergoes heat exchange, and the refrigerant absorbs heat and flows back to the regenerator 112, and then absorbs heat through the cold side of the regenerator 112 before entering the first refrigerant pump 111, and is transported through the first refrigerant pump 111 It releases heat to the hot side of the regenerator 112 for pre-cooling, and then enters the cold plate of the refrigerator 20, and so on.
  • Step S50 Detect the temperature of the refrigerant output from the output end of the refrigerator, and generate a temperature signal to calculate a temperature detection value based on the temperature signal.
  • the temperature sensor 114 monitors the temperature of the refrigerant in real time and feeds back the temperature signal to the refrigeration control system.
  • the refrigeration control system determines whether the current temperature reaches the threshold, and then controls the operation of the refrigerator 20 or switches the pump liquid pipe according to the situation. Road 10 and so on.
  • Step S60 Switch the first pump liquid pipeline to the second pump liquid pipeline according to the temperature detection value, so that the brine refrigerant flows back to the second pump liquid pipeline through the storage device. of the second refrigerant pump.
  • the second refrigerant pump 121 may be a cryogenic pump.
  • the circulation flow direction of the secondary refrigerant is: the cold end cold plate of the refrigerator 20 generates cold energy and performs heat exchange with the secondary refrigerant.
  • the secondary refrigerant After the secondary refrigerant is cooled, it enters the gas-liquid separator 30 and is separated by the gas-liquid separator 30
  • the liquid phase or gas phase refrigerant enters the heat exchange channel 40a of the storage device 40, and can exchange heat with the cooled medium in the storage device 40 through the heat exchange assembly 41, and then absorbs heat.
  • the resulting brine flows back to the second brine pump 121, and is then transported to the cold plate of the refrigerator 20 through the second brine pump 121, and this cycle repeats.
  • Step S70 When obtaining the refrigeration shutdown instruction, shut down the refrigerator and the second refrigerant pump in sequence.
  • the refrigeration system receives the user's shutdown command and ends the refrigeration work.
  • the first pump liquid pipeline is switched to the second pump liquid pipeline according to the temperature detection value, so that the brine passes through the Step S60 of returning the storage device to the second pump liquid pipeline specifically includes:
  • Step S61 When the difference between the temperature detection value and the target temperature is less than or equal to the threshold, open the second refrigerant pump of the second pump liquid pipeline;
  • Step S62 After the first preset time, turn off the first refrigerant pump
  • Step S63 After the second preset time, close the first valve
  • Step S64 After the third preset time, close the second valve.
  • the temperature sensor 114 detects the temperature of the refrigerant output from the cold plate of the thermoacoustic refrigerator, and the refrigeration system determines whether to switch to the second refrigerant pump 121 based on the temperature detection value; if
  • Valve 116 where T is the temperature detection value, T 0 is the target temperature, and a is the system preset threshold.
  • the first pump liquid pipeline is first used to transport the refrigerant.
  • the first pump liquid pipeline is switched to the second pump liquid pipeline to transport the brine. Transport to accelerate the flow of brine, so that the cooling temperature drops to the target temperature at a faster rate, and reduces the energy consumption loss caused by the simultaneous opening of the first pump liquid pipeline and the second pump liquid pipeline, significantly reducing Improves refrigeration efficiency and saves costs.
  • the refrigerator when the first refrigerant pump 111 is a conventional pump, the refrigerator is started to generate cold energy and perform heat exchange with the secondary refrigerant to cool the secondary refrigerant. Before reaching the target temperature step S20, it also includes:
  • Step S11 Pass the brine to the hot end of the regenerator to pre-cool the brine
  • the step S40 of controlling the return of the heat-absorbed brine to the first pump liquid pipeline through the storage device specifically includes:
  • Step S41 Pass the brine flowing out from the storage device to the cold end of the regenerator to preheat the brine, and allow the brine to flow into the third A load of refrigerant pump.
  • the technical effect of the cryogenic pump can be achieved by using a combination of a conventional pump and the regenerator 112 .
  • the cold end of the regenerator 112 can preheat the refrigerant and can cooperate with the first refrigerant pump 111 to transport the refrigerant at a faster speed.
  • the hot end of the regenerator 112 can Pre-cooling the brine further improves refrigeration efficiency.

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Abstract

L'invention concerne un équipement de stockage et un procédé de réfrigération associé. L'équipement de stockage comprend une conduite de liquide pompé (10), un dispositif de réfrigération (20), un séparateur gaz-liquide (30) et un appareil de stockage (40) ; une extrémité d'entrée du dispositif de réfrigération (20) est en communication avec une extrémité de sortie de la conduite de liquide pompé (10), qui est utilisée pour produire une énergie froide et permettre à ladite énergie de subir un échange de chaleur avec un fluide frigorigène ; une extrémité d'entrée du séparateur gaz-liquide (30) est en communication avec une extrémité de sortie du dispositif de réfrigération (20), de façon à séparer le fluide frigorigène en un fluide frigorigène en phase liquide et un fluide frigorigène en phase gazeuse ; et l'appareil de stockage (40) est formé comme ayant un canal d'échange de chaleur (40a), une extrémité d'entrée du canal d'échange de chaleur (40a) est en communication avec une extrémité de sortie du séparateur gaz-liquide (30), et une extrémité de sortie du canal d'échange de chaleur (40a) est en communication avec une extrémité d'entrée de la conduite de liquide pompé (10), de façon à absorber et évacuer l'énergie thermique d'un milieu fluide au moyen du fluide frigorigène en phase liquide ou du fluide frigorigène en phase gazeuse.
PCT/CN2023/109874 2022-07-29 2023-07-28 Équipement de stockage et procédé de réfrigération associé WO2024022500A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210914899.2 2022-07-29
CN202210914899.2A CN117516026A (zh) 2022-07-29 2022-07-29 存储设备及其制冷方法

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WO2024022500A1 true WO2024022500A1 (fr) 2024-02-01

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WO (1) WO2024022500A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0374688A2 (fr) * 1988-12-23 1990-06-27 General Electric Company Système réfrigérateur à deux évaporateurs pour réfrigérateurs ménagers
CN101457964A (zh) * 2009-01-08 2009-06-17 南京大学 具有测试功能的蓄冷空调系统
CN106871472A (zh) * 2016-12-27 2017-06-20 广东技术师范学院 一种获得多个不同温度的新型制冷循环装置
CN113339909A (zh) * 2021-05-31 2021-09-03 青岛海信日立空调系统有限公司 热泵空调系统
CN218495540U (zh) * 2022-07-29 2023-02-17 山前（珠海）医疗科技有限公司 一种超低温存储系统
CN218864578U (zh) * 2022-07-29 2023-04-14 山前（珠海）医疗科技有限公司 存储设备

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0374688A2 (fr) * 1988-12-23 1990-06-27 General Electric Company Système réfrigérateur à deux évaporateurs pour réfrigérateurs ménagers
CN101457964A (zh) * 2009-01-08 2009-06-17 南京大学 具有测试功能的蓄冷空调系统
CN106871472A (zh) * 2016-12-27 2017-06-20 广东技术师范学院 一种获得多个不同温度的新型制冷循环装置
CN113339909A (zh) * 2021-05-31 2021-09-03 青岛海信日立空调系统有限公司 热泵空调系统
CN218495540U (zh) * 2022-07-29 2023-02-17 山前（珠海）医疗科技有限公司 一种超低温存储系统
CN218864578U (zh) * 2022-07-29 2023-04-14 山前（珠海）医疗科技有限公司 存储设备

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