Cold storage type cooling device

Abstract

The utility model discloses a cold accumulation type cooling device, which belongs to the technical field of cooling equipment, and comprises a refrigeration module, an inner circulation module, a temperature control circulation module and an outer circulation module, the refrigeration module can introduce a refrigerant into an evaporator to absorb heat; the inner circulation module comprises a first pump body and a cold storage box, and the first pump body can supply cold storage fluid in the cold storage box to the evaporator; the temperature control circulation module comprises a second pump body and a first heat exchanger, the first heat exchanger is provided with a first heat exchange flow channel and a second heat exchange flow channel, the second pump body can introduce cold storage fluid into the first heat exchange flow channel, and the cold storage box can collect the cold storage fluid flowing through the evaporator and the first heat exchanger; the outer circulation module comprises a buffer box and a third pump body, the second heat exchange flow channel is connected with the buffer box, the third pump body can supply cooling liquid of the buffer box to the load end, the cooling liquid flowing through the load end is sequentially led into the second heat exchange flow channel and the buffer box, and the electric power and cost can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of cooling equipment technology, and in particular to a cold storage cooling device. Background Technology

[0002] The most prominent features of large-scale laser equipment are short operating time and high heat loss. A complete working cycle of a laser equipment requires multiple pulses to be emitted. Each pulse emission generates significant heat loss, and the multiple emission cycles are set at intervals. After multiple emission cycles are completed, a preset time is restored to complete one cycle.

[0003] In related technologies, the power consumption of cooling equipment for large laser devices is high, making it difficult to apply to scenarios with power constraints, and the manufacturing cost is also high. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a cold storage cooling device, which helps to reduce power consumption and cost, and is suitable for scenarios with power constraints.

[0005] A cold storage cooling device according to an embodiment of the present invention includes: a refrigeration module comprising a compressor, a condenser, a throttling element, and an evaporator connected in sequence, wherein the refrigeration module can introduce refrigerant into the evaporator to absorb heat; an internal circulation module comprising a first pump body and a cold storage tank, wherein the first pump body can supply cold storage fluid in the cold storage tank to the evaporator, so that the cold storage fluid exchanges heat with the refrigerant; a temperature control circulation module comprising a second pump body and a first heat exchanger, wherein the first heat exchanger has a first heat exchange channel and a second heat exchange channel, the first heat exchange channel being connected to the outlet of the cold storage tank, the second pump body being able to introduce cold storage fluid into the first heat exchange channel, and the cold storage tank being able to collect the cold storage fluid flowing through the evaporator and the first heat exchanger; and an external circulation module comprising a buffer tank and a third pump body, wherein the second heat exchange channel is connected to the buffer tank, and the third pump body being able to supply coolant from the buffer tank to the load end, so that the coolant flowing through the load end is sequentially introduced into the second heat exchange channel and the buffer tank.

[0006] The cold storage cooling device according to the embodiments of this utility model has at least the following beneficial effects: This cold storage cooling device can utilize the characteristics of the laser equipment's emission interval. When the laser equipment is in the interval period, the cold storage cooling device can store cold. Specifically, the refrigeration module can introduce the cooled refrigerant into the evaporator, releasing cold energy through the phase change of the refrigerant, i.e., absorbing heat. The first pump can supply the cold storage fluid in the cold storage tank to the evaporator, i.e., the cold storage fluid can exchange heat with the refrigerant at the evaporator, thereby transferring the cold energy of the refrigerant to the cold storage fluid. The cold storage tank can collect the cold storage fluid flowing through the evaporator to achieve the function of cold storage. The temperature control circulation module includes a first heat exchanger, which has a first heat exchange channel and a second heat exchange channel. The first heat exchange channel is connected to the outlet of the cold storage tank, and the second heat exchange channel is connected to the buffer tank. When the laser equipment emits continuous pulses... During operation, the temperature control circulation module and the external circulation module operate. The second pump can introduce the cooled cold storage fluid into the first heat exchange channel, and the third pump can supply the cooled coolant in the buffer tank to the load end. The cooled coolant, after flowing through the load end and heating up, can enter the second heat exchange channel. That is, the coolant and the cold storage fluid can exchange heat at the first heat exchanger. The coolant can absorb the cold energy of the cold storage fluid to achieve cooling. The cooled coolant is then introduced back into the buffer tank to achieve the circulation supply of coolant. This cold storage cooling device can store cold energy during the intervals of the laser equipment through the operation of the internal circulation module and the refrigeration module. When the laser equipment emits continuous pulses, the stored cold energy is released into the coolant. Compared with cooling devices that only perform cooling when the laser equipment emits continuous pulses, this cold storage cooling device has lower power consumption and lower cost, and is especially suitable for scenarios with power constraints.

[0007] According to some embodiments of the present invention, the evaporator is a plate evaporator; and / or, the first heat exchanger is a plate heat exchanger.

[0008] According to some embodiments of the present invention, the internal circulation module further includes a first filter and a first flow meter connected in series, the first filter and the first flow meter being connected between the cold storage box and the evaporator.

[0009] According to some embodiments of the present invention, the temperature control circulation module further includes a flow regulating valve, which is configured to regulate the flow rate of the cold storage fluid.

[0010] According to some embodiments of the present invention, the cold storage cooling device further includes an external condensation module, which includes a cooling tower and a fourth pump body. The fourth pump body is used to supply the condenser to absorb heat, and the cooling tower is used to dissipate heat from the condenser after heat absorption.

[0011] According to some embodiments of the present invention, the external condensation module further includes a pressure regulating valve and a second flow meter connected in series, with the pressure regulating valve and the second flow meter located between the cooling tower and the condenser.

[0012] According to some embodiments of this utility model, the external condenser module is provided with two branches, each branch including a pressure regulating valve and a second flow meter. The two ends of the branch are respectively connected to the inlet and outlet of the cooling tower. Two refrigeration modules are provided, and the two branches are respectively connected to the condensers of the two refrigeration modules to supply refrigerant to the condensers.

[0013] According to some embodiments of the present invention, the external circulation module has a second filter connected between the buffer tank and the first heat exchanger.

[0014] According to some embodiments of this utility model, multiple external circulation modules and multiple first heat exchangers are provided, and the external circulation modules are connected to the first heat exchangers one by one.

[0015] According to some embodiments of the present invention, the cold storage cooling device further includes a filling module, which is used to fill the cold storage tank with cold storage fluid and / or fill the buffer tank with coolant.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a schematic diagram of the structure of a cold storage cooling device according to an embodiment of the present invention;

[0019] Figure 2 for Figure 1 A top view of the cold storage cooling device shown in the image;

[0020] Figure 3 This is a schematic diagram of a cold storage cooling device according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the connection between the temperature control circulation module and the external circulation module of a cold storage cooling device according to an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the connection between the temperature control circulation module and the external circulation module of a cold storage cooling device according to an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the connection between two refrigeration modules of a cold storage cooling device according to an embodiment of the present invention;

[0024] Figure 7This is a structural schematic diagram of the connection between two refrigeration modules of a cold storage cooling device according to an embodiment of the present invention, from another perspective.

[0025] Figure 8 This is a schematic diagram of the external condensation module of a cold storage cooling device according to an embodiment of the present invention.

[0026] Icon labels:

[0027] 100. Refrigeration module; 110. Condenser;

[0028] 200. Internal circulation module; 210. Cold storage box; 220. First pump body;

[0029] 300. Temperature control circulation module; 310. First heat exchanger; 320. Second pump body;

[0030] 400. External circulation module; 410. Buffer tank; 420. Third pump body;

[0031] 500. External condenser module; 510. Cooling tower; 520. Pressure regulating valve; 530. Second flow meter. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0035] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0036] The most significant characteristics of laser equipment are its short operating time and high heat loss. A complete working cycle of a laser device requires the emission of multiple pulses. Taking a known laser device as an example, a complete working cycle requires the emission of 5 consecutive pulses, with a heat load of 3500KW per pulse. The interval between two consecutive pulses is 8 minutes, and after 5 pulses, there is a 30-minute recovery period to complete one working cycle.

[0037] Reference Figures 1 to 8 As shown, one embodiment of the present invention provides a cold storage cooling device based on the characteristic of laser equipment having an interval between pulses emitted, i.e., the laser equipment emits two consecutive pulses at intervals, with a gap between the two heat generation periods. This cold storage cooling device can operate continuously during the interval, storing the generated cooling capacity for use when the laser emits consecutive pulses, thereby reducing the power consumption and cost of the cold storage cooling device. Specifically, the cold storage cooling device includes an external condensation module 500, a refrigeration module 100, an internal circulation module 200, a temperature control circulation module 300, an external circulation module 400, a control module, and a refueling module.

[0038] Reference Figure 1 , Figure 2 and Figure 3 As shown, the refrigeration module 100 includes a compressor, a condenser 110, a throttling element, and an evaporator connected in sequence. After absorbing refrigerant, the compressor can compress the refrigerant to a high temperature and high pressure state and pass the refrigerant into the condenser 110. The high temperature and high pressure refrigerant gas is cooled and condensed into a saturated or subcooled liquid in the condenser 110, and then it can be passed into the throttling element. The throttling element can throttle and reduce the pressure of the condensed refrigerant to form a low temperature and low pressure refrigerant. The low temperature and low pressure refrigerant can enter the evaporator to absorb heat and vaporize before returning to the compressor to realize a complete compression refrigeration cycle.

[0039] Reference Figure 1 , Figure 2 and Figure 3 As shown, the internal circulation module 200 includes a first pump body 220 and a cold storage tank 210. The cold storage tank 210 can be used to store cold storage fluid. The first pump body 220 can be connected to the cold storage tank 210 through a pipeline. Under the pressure transformation action of the first pump body 220, the cold storage fluid in the cold storage tank 210 can be supplied to the evaporator, so that the cold storage fluid can exchange heat with the refrigerant at the evaporator. The refrigerant can absorb the heat of the cold storage fluid, that is, transfer part of the cold energy of the refrigerant to the cold storage fluid, thereby reducing the temperature of the cold storage fluid. The cold storage tank 210 can collect the cold storage fluid flowing through the evaporator to realize the function of cold storage. That is, the cold storage cooling device can operate continuously during the interval of the laser equipment and store cold energy for heat dissipation when the laser equipment emits continuous pulses.

[0040] Reference Figure 1 , Figure 4 and Figure 5 As shown, the temperature control circulation module 300 includes a first heat exchanger 310 and a second pump body 320. The first heat exchanger 310 has a first heat exchange channel and a second heat exchange channel. The first heat exchange channel is connected to the outlet of the cold storage box 210. The second pump body 320 can pass the cold storage fluid into the first heat exchange channel. The cold storage box 210 can collect the cold storage fluid flowing through the evaporator and the first heat exchanger 310.

[0041] Reference Figure 1 , Figure 4 and Figure 5 As shown, the adapted external circulation module 400 includes a buffer tank 410 and a third pump body 420. The buffer tank 410 is used to store coolant. The external circulation module 400 can be connected to the first heat exchanger 310. The second heat exchange channel can be connected to the buffer tank 410 through a pipeline and the third pump body 420. Under the pressure transformation action of the third pump body 420, the coolant in the buffer tank 410 can be supplied to the load end of the laser equipment to achieve heat dissipation at the load end. The coolant flowing through the load end sequentially enters the second heat exchange channel of the second heat exchange channel and the buffer tank 410. That is, the coolant and the cold storage fluid can achieve heat exchange at the first heat exchanger 310. The coolant can absorb the cold energy of the cold storage fluid to achieve cooling. The cooled coolant is then circulated back into the buffer tank 410 to achieve the circulation supply of coolant.

[0042] Reference Figure 1 , Figure 4 and Figure 5 As shown, this cold storage cooling device can continuously generate and store cold energy during the intervals of the laser device through the operation of the internal circulation module 200 and the cooling module 100. When the laser device emits continuous pulses, the stored cold energy is released into the coolant. Compared with cooling devices that only cool when the laser device emits continuous pulses, this cold storage cooling device has lower power consumption and lower cost, greatly reducing power consumption and power usage requirements, and is especially suitable for scenarios with power constraints.

[0043] It should be noted that the refrigerant can be Freon, the cold storage fluid can be liquid water, and the coolant can also be liquid water. The throttling element can be an expansion valve, capillary tube, or other similar components.

[0044] Reference Figure 1 , Figure 2 and Figure 3As shown, it can be understood that the evaporator is a plate evaporator, which is an evaporation device that uses metal plates as the core heat transfer element. The plate evaporator includes multiple plates, the surface of which is corrugated or grooved. Multiple plates are combined by welding or sealing gaskets to form multiple alternating channels. The refrigerant and the cold storage fluid can flow alternately and intermittently in the alternating channels to achieve the evaporation and heat absorption of the refrigerant, as well as the heat release of the cold storage fluid.

[0045] Reference Figure 1 , Figure 2 and Figure 3 As shown, the first heat exchanger 310 is a plate heat exchanger, which is a heat exchange device that uses metal plates as the core heat transfer element. The plate heat exchanger includes multiple plates, the surface of which is corrugated or grooved. Multiple plates are combined by welding or sealing gaskets to form alternating first and second heat exchange channels. Under the pressure change action of the second pump body 320, the cooled cold storage fluid can be introduced into the first heat exchange channel. Under the action of the third pump body 420, the heated coolant can be introduced into the second heat exchange channel to realize the heat exchange between the cold storage fluid and the coolant, improve the heat exchange efficiency between the cold storage fluid and the coolant, and accelerate the cooling of the coolant.

[0046] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that the internal circulation module 200 also includes a first filter and a first flow meter connected in series, which are connected between the cold storage box 210 and the evaporator.

[0047] Reference Figure 1 , Figure 2 and Figure 3 As shown, the first filter is used to filter impurities contained in the cold storage fluid, such as solid particles, to prevent clogging of the pipeline. The first flow meter can be used to measure the flow rate of the cold storage fluid in real time to ensure the flow stability of the internal circulation module 200. The instantaneous flow rate and cumulative amount are output through pulse signals to realize the automated control of the cold storage cooling device.

[0048] Reference Figure 1 , Figure 2 and Figure 3 As shown, it is understood that the temperature control circulation module 300 also includes a flow regulating valve, which is configured to regulate the flow rate of the cold storage fluid. The flow regulating valve can adjust the flow rate of the cold storage fluid according to whether the temperature of the coolant reaches a preset value, thereby adjusting the cooling capacity output by the temperature control circulation module 300 to the external circulation module 400 so that the coolant can reach the preset value and ensure the cooling effect of the coolant on the load end.

[0049] Reference Figure 1 , Figure 2 and Figure 3 As shown, it should be noted that the flow regulating valve can adjust the flow rate of the cold storage fluid by adjusting its opening degree.

[0050] It should be understood that, in some other embodiments, the flow regulating valve may be an electric three-way valve, which can be used to switch the connection between the cold storage tank 210 and the first pump body 220 or the second pump body 320.

[0051] Reference Figure 1 , Figure 3 and Figure 8 As shown, it can be understood that in this embodiment, the cold storage cooling device also includes an external condensation module 500, which includes a cooling tower 510 and a fourth pump body. The fourth pump body is used to supply the condenser 110 to absorb heat, and the cooling tower 510 is used to dissipate heat from the condenser after heat absorption.

[0052] Reference Figure 1 , Figure 3 and Figure 8 As shown, the cold storage cooling device is equipped with an external condenser module 500. The fourth pump body can be connected to the cooling tower 510 and the condenser 110 through pipelines, thereby supplying the cooled condenser 110 to the condenser 110. The condenser can be liquid water to achieve water cooling of the condenser 110. That is, the condenser and the refrigerant exchange heat at the condenser 110. The condenser can absorb the heat of the refrigerant, so that the refrigerant is reduced from high temperature and high pressure to low temperature. The heated condenser can be conducted to the cooling tower 510 for heat dissipation, thereby realizing the circulation and heat dissipation of the condenser.

[0053] Reference Figure 1 , Figure 3 and Figure 8 As shown, the cold storage cooling device can improve the heat dissipation effect of the condenser 110 of the refrigeration module 100 by setting the external condenser module 500, which is conducive to further reducing the temperature of the refrigerant flowing through the condenser 110, thereby increasing the cooling capacity released by the refrigeration module 100.

[0054] Reference Figure 1 , Figure 3 and Figure 8 As shown, it can be understood that the external circulation module 400 has a second filter connected between the buffer tank 410 and the first heat exchanger 310 to filter impurities contained in the coolant, such as solid particles, to prevent clogging of the pipeline.

[0055] Reference Figure 1 , Figure 3 and Figure 8As shown, it can be understood that the external condensation module 500 also includes a pressure regulating valve 520 and a second flow meter 530 connected in series, with the pressure regulating valve 520 and the second flow meter 530 located between the cooling tower 510 and the condenser 110.

[0056] Reference Figure 1 , Figure 3 and Figure 8 As shown, the second flow meter 530 is used to monitor the actual flow rate of the refrigerant in the external condensation module 500 in real time, providing data support for the pressure regulating valve 520. The pressure regulating valve 520 is configured to operate based on the detection value of the second flow meter 530. By automatically adjusting the flow rate of the refrigerant in the external condensation module 500, the pressure regulating valve 520 ensures that the condensation pressure fluctuates within a preset range, thereby improving the operational stability of the cold storage cooling device.

[0057] Reference Figure 1 , Figure 6 and Figure 7 As shown, it can be understood that the external condensation module 500 is provided with two branches, each including a pressure regulating valve 520 and a second flow meter 530. The two ends of the branches are connected to the inlet and outlet of the cooling tower 510, respectively. Under the pressure transformation action of the fourth pump body, the refrigerant of the cooling tower 510 can be diverted into the two branches.

[0058] Reference Figure 1 , Figure 6 and Figure 7 As shown, two refrigeration modules 100 are provided, and the two refrigeration modules 100 are connected in parallel. Two branches are respectively connected to the condensers 110 of the two refrigeration modules 100 to supply refrigerant to the condensers 110.

[0059] Reference Figure 1 , Figure 6 and Figure 7 As shown, the cold storage cooling device can improve the cooling efficiency and cooling capacity of the cold storage cooling device by cooperating with the two branches of the two cooling modules 100 and the external condensation module 500, so as to store enough cold energy during the interval of the laser equipment to cope with the heat loss after the laser equipment emits continuous pulses.

[0060] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that multiple external circulation modules 400 and multiple first heat exchangers 310 are provided, and the external circulation modules 400 are connected to the first heat exchangers 310 one by one.

[0061] Specifically, the cold storage cooling device has an external circulation module 400 designed with a four-loop temperature control system. That is, it has four external circulation modules 400 that are relatively independent. Through multi-sensor fusion, phased algorithm optimization and independent closed-loop architecture, it achieves high-precision temperature management in complex scenarios, combining flexibility and reliability.

[0062] The temperature control circulation module 300 and the internal circulation module 200 are both configured with four sets, which are then connected to the four sets of external circulation modules 400.

[0063] It should be understood that in some other embodiments, the outer circulation module 400 is configured with multiple groups such as 3 and 56.

[0064] Reference Figure 1 , Figure 2 and Figure 3 As shown, it is understood that the cold storage cooling device also includes a filling module, which may include a filling pump, which can be connected in parallel with the cold storage tank 210 and the buffer tank 410 via pipelines.

[0065] Reference Figure 1 , Figure 2 and Figure 3 As shown, the filling module pressurizes the cold storage fluid through a filling pump to fill the cold storage tank 210 with the cold storage fluid, thus replenishing the cold storage fluid lost in the cold storage tank 210 in a timely manner. Similarly, the filling module can fill the coolant through a filling pump to replenish the coolant lost in the buffer tank 410 in a timely manner, thereby ensuring the heat dissipation energy of the internal circulation module 200 and the external circulation module 400, and achieving the thermodynamic balance between the internal circulation module 200 and the external circulation module 400.

[0066] Reference Figure 1 , Figure 2 and Figure 3 As shown, it is understood that the cold storage cooling device also includes a control module. The control module transmits and sends signals, and the controller automatically identifies the database for connection, thereby spontaneously controlling the operation of electronic components to achieve the coordinated operation of the refrigeration module 100, the internal circulation module 200, the temperature control circulation module 300, the external circulation module 400, the external condensation module 500, and the charging module, so as to improve the operational stability of the cold storage cooling device.

[0067] Reference Figure 1 , Figure 2 and Figure 3As shown, a key parameter for evaluating the advancement of current refrigeration technology is the Coefficient of Performance (COP) of the cooling equipment. COP is calculated as the ratio of the cooling capacity to the power consumption of the cooling equipment, i.e., COP = Cooling Capacity / Power Consumption. Currently, the COP of large-scale refrigeration equipment both domestically and internationally is generally around 2.2. Taking a selected laser device as an example, with a cooling capacity of 3500KW, traditional refrigeration technology would require 1591KW of power to remove the heat load from the laser device.

[0068] Reference Figure 1 , Figure 2 and Figure 3 As shown, the cold storage cooling device provided in this embodiment of the invention, based on the interval characteristics of laser equipment, can continuously generate and store cold energy within the interval range of laser equipment emission. Taking a selected laser equipment as an example, according to actual test results, the cold storage cooling device removes 3500KW of heat load while consuming only 255KW of electricity. Compared with traditional refrigeration technology, the power consumption of the cold storage cooling device is reduced by 1336KW. Therefore, the cold storage cooling device has lower power consumption and less electricity consumption, making it particularly suitable for scenarios with limited electricity, effectively reducing costs and exhibiting high economic efficiency.

[0069] Taking the selected laser equipment as an example, the cold storage cooling device provided in this embodiment of the utility model has a maximum power consumption of 255KW, which can meet the heat dissipation requirements of a 3500KW laser equipment with high heat consumption.

[0070] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A cold storage cooling device, characterized in that, include: A refrigeration module (100) includes a compressor, a condenser (110), a throttling element and an evaporator connected in sequence, wherein the refrigeration module (100) is capable of introducing refrigerant into the evaporator to absorb heat; The internal circulation module (200) includes a first pump body (220) and a cold storage tank (210). The first pump body (220) can supply the cold storage fluid in the cold storage tank (210) to the evaporator, so that the cold storage fluid exchanges heat with the refrigerant. The temperature control circulation module (300) includes a second pump body (320) and a first heat exchanger (310). The first heat exchanger (310) has a first heat exchange channel and a second heat exchange channel. The first heat exchange channel is connected to the outlet of the cold storage box (210). The second pump body (320) can pass the cold storage fluid into the first heat exchange channel. The cold storage box (210) can collect the cold storage fluid flowing through the evaporator and the first heat exchanger (310). The external circulation module (400) includes a buffer tank (410) and a third pump body (420). The second heat exchange channel is connected to the buffer tank (410). The third pump body (420) can supply the coolant from the buffer tank (410) to the load end, so that the coolant flowing through the load end is sequentially introduced into the second heat exchange channel and the buffer tank (410).

2. The regenerative cooling device according to claim 1, characterized in that: The evaporator is a plate evaporator; and / or, the first heat exchanger (310) is a plate heat exchanger.

3. The cold storage cooling device according to claim 1, characterized in that: The internal circulation module (200) also includes a first filter and a first flow meter connected in series, the first filter and the first flow meter being connected between the cold storage box (210) and the evaporator.

4. The regenerative cooling device according to claim 1, characterized in that: The temperature control circulation module (300) also includes a flow regulating valve configured to regulate the flow rate of the cold storage fluid.

5. The regenerative cooling device according to claim 1, characterized in that: It also includes an external condensation module (500), which includes a cooling tower (510) and a fourth pump body. The fourth pump body is used to supply the condenser (110) to absorb heat, and the cooling tower (510) is used to dissipate heat from the condenser after it has absorbed heat.

6. The regenerative cooling device according to claim 5, characterized in that: The external condensation module (500) also includes a pressure regulating valve (520) and a second flow meter (530) connected in series, wherein the pressure regulating valve (520) and the second flow meter (530) are located between the cooling tower (510) and the condenser (110).

7. The regenerative cooling device according to claim 6, characterized in that: The external condenser module (500) has two branches, each branch including the pressure regulating valve (520) and the second flow meter (530). The two ends of the branches are respectively connected to the inlet and outlet of the cooling tower (510). There are two refrigeration modules (100), and the two branches are respectively connected to the condensers (110) of the two refrigeration modules (100) to supply the refrigerant to the condensers (110).

8. The regenerative cooling device according to claim 1, characterized in that: The external circulation module (400) has a second filter connected between the buffer tank (410) and the first heat exchanger (310).

9. The cold storage cooling device according to claim 1, characterized in that: Multiple external circulation modules (400) are provided, and multiple first heat exchangers (310) are provided. Each external circulation module (400) is connected to a first heat exchanger (310).

10. The cold storage cooling device according to claim 1, characterized in that: It also includes a filling module for filling the cold storage tank (210) with the cold storage fluid and / or filling the buffer tank (410) with the coolant.

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