Liquid cooling system

Abstract

The utility model relates to the technical field of refrigeration, in particular to a liquid cooling system which comprises a cold source side system and a cooling side system. A heat exchanger is arranged between the cold source side system and the cooling side system; the heat exchanger is provided with a waterway pipeline; the cooling side system comprises a water tank, a circulating pump, a first cooling loop and a bypass pipeline; the first cooling loop comprises a first cooling valve and first heating equipment; and the bypass valve is provided with an electric heating piece. The circulating water path is formed among the water tank, the circulating pump, the water path pipeline and the bypass pipeline, and the water temperature of the water tank can be controlled in cooperation with the electric heating piece, so that a cold source side system can actively accumulate cold, and the problem that the waiting time is long due to the fact that the liquid supply temperature of a cooling side is too high is solved; the reliability of the cooling process of the liquid cooling system is improved.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration technology, specifically to a liquid cooling system. Background Technology

[0002] In the field of outdoor equipment heat dissipation technology, air cooling and liquid cooling are two widely used heat dissipation methods.

[0003] Outdoor air-cooled equipment has revealed a series of problems in actual operation. In terms of heat dissipation efficiency, due to the complexity of the outdoor environment, such as high temperature, high humidity and dust, the heat dissipation efficiency of air-cooled equipment is extremely limited. In addition, there are problems such as loud fan noise and easy clogging of air inlets and outlets.

[0004] Traditional liquid cooling systems typically consist of a cooling-side liquid cooling water system and a cold source-side compressor refrigeration system. The cooling-side liquid cooling water system includes a chilled water tank, a cooling circuit, and a circulating pump. A significant problem with this system is that the cooling-side liquid supply temperature is too high when transitioning from standby to the next startup, resulting in excessively long startup waiting times. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by providing a liquid cooling system.

[0006] The objective of this utility model is achieved through the following technical solution: a liquid cooling system, comprising a cold source side system and a cooling side system; a heat exchanger is provided between the cold source side system and the cooling side system; the heat exchanger is provided with water pipes;

[0007] The cooling system includes a water tank, a circulating pump, a first cooling circuit, and a bypass pipe. The first cooling circuit includes a first cooling valve and a first heating device. One end of the water tank is connected to one end of the circulating pump. The other end of the circulating pump is connected to one end of the water pipe. The other end of the water pipe is connected to the other end of the water tank via the bypass pipe. The bypass pipe is equipped with a bypass valve. The other end of the water pipe is connected to the other end of the water tank after passing through the first heating device. The first cooling valve is located between the other end of the water pipe and the first heating device. The bypass pipe is equipped with an electric heating element.

[0008] The present invention is further configured such that a first flow meter is provided between the other end of the water pipe and the first cooling valve.

[0009] The present invention is further configured such that a first one-way valve and a first filter are provided between the other end of the water tank and the first heating device.

[0010] The present invention is further configured such that the cooling side system includes a second cooling circuit arranged in parallel with the first cooling circuit; the second cooling circuit includes a second cooling valve and a second heating device; the other end of the water pipe is connected to the other end of the water tank after passing through the second heating device; the second cooling valve is located between the other end of the water pipe and the second heating device.

[0011] The present invention is further configured such that a second flow meter is provided between the other end of the water pipe and the second cooling valve.

[0012] The present invention is further configured such that a second one-way valve and a second filter are provided between the other end of the water tank and the second heating device.

[0013] The present invention is further configured such that the cold source side system includes a compressor, a condenser, and an electronic expansion valve; the heat exchanger is provided with a refrigerant pipeline; one end of the compressor is connected to one end of the condenser; the other end of the condenser is connected to one end of the electronic expansion valve; and the other end of the electronic expansion valve is connected to the other end of the compressor via the refrigerant pipeline.

[0014] The present invention is further configured such that a drying filter is provided between the electronic expansion valve and the condenser.

[0015] The present invention is further provided that a fan is provided at the condenser.

[0016] The present invention is further configured such that there are two fluorine circuit pipes; there are two cold source side systems; and the fluorine circuit pipes and the cold source side systems are configured in a one-to-one correspondence.

[0017] The beneficial effects of this utility model are as follows: By forming a circulating water circuit between the water tank, circulating pump, water pipes and bypass pipes, and using an electric heating element, the water temperature in the water tank can be controlled, thereby enabling the cold source side system to actively store cold, solving the problem of long waiting time caused by excessively high cooling liquid supply temperature, and improving the reliability of the liquid cooling system cooling process. Attached Figure Description

[0018] The utility model will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present utility model. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of Embodiment 1 of this utility model;

[0020] Figure 2 This is a structural schematic diagram of Embodiment 2 of this utility model;

[0021] The components include: 1. Heat exchanger; 11. Water pipe; 12. Refrigerant pipe; 21. Water tank; 22. Circulating pump; 23. Bypass pipe; 24. Electric heating element; 25. Bypass valve; 31. First cooling valve; 32. First heating device; 33. First flow meter; 34. First check valve; 35. First filter; 41. Second cooling valve; 42. Second heating device; 43. Second flow meter; 44. Second check valve; 45. Second filter; 51. Compressor; 52. Condenser; 53. Electronic expansion valve; 54. Dryer filter; 55. Fan. Detailed Implementation

[0022] The present invention will be further described in conjunction with the following embodiments.

[0023] Example 1, by Figure 1 As can be seen, the liquid cooling system described in this embodiment includes a cold source side system and a cooling side system; a heat exchanger 1 is provided between the cold source side system and the cooling side system; the heat exchanger 1 is provided with a water pipe 11;

[0024] The cooling system includes a water tank 21, a circulating pump 22, a first cooling circuit, and a bypass pipe 23. The first cooling circuit includes a first cooling valve 31 and a first heating device 32. One end of the water tank 21 is connected to one end of the circulating pump 22. The other end of the circulating pump 22 is connected to one end of the water pipe 11. The other end of the water pipe 11 is connected to the other end of the water tank 21 through the bypass pipe 23. The bypass pipe 23 is equipped with a bypass valve 25. The other end of the water pipe 11 is connected to the other end of the water tank 21 after passing through the first heating device 32. The first cooling valve 31 is located between the other end of the water pipe 11 and the first heating device 32. The bypass pipe 23 is equipped with an electric heating element 24.

[0025] Specifically, in this embodiment, the liquid cooling system provides cooling capacity to the cooling system via heat exchanger 1 during operation. Specifically, the cooling system has a cooling mode and a cold storage mode. In cooling mode, bypass valve 25 is closed and first cooling valve 31 is opened, forming a circulating water path between water tank 21, circulating pump 22, water pipe 11, first cooling valve 31, and first heating device 32. The cooling capacity of heat exchanger 1 is used to cool the first heating device 32. In cold storage mode, bypass valve 25 is opened and first cooling valve 31 is closed, forming a circulating water path between water tank 21, circulating pump 22, water pipe 11, and bypass pipe 23. With the use of electric heating element 24, the water temperature in water tank 21 can be controlled, enabling the cold source system to actively store cold. This solves the problem of excessively high cooling supply temperature causing long waiting times when transitioning from standby to the next startup in existing liquid cooling systems, thus improving the reliability of the liquid cooling process.

[0026] In addition, a temperature sensor and a pressure sensor can be installed at the return point, i.e., the other end of the water tank 21, to understand the return liquid temperature and return liquid pressure; at the same time, a temperature sensor and a pressure sensor can be installed at the supply point, i.e., the other end of the water pipe 11, to understand the supply liquid temperature and supply liquid pressure; in addition, a temperature sensor can be installed inside the water tank 21 to understand the temperature inside the water tank 21.

[0027] In the liquid cooling system described in this embodiment, a first flow meter 33 is provided between the other end of the water pipe 11 and the first cooling valve 31. This arrangement facilitates the determination of the flow rate of the first cooling circuit.

[0028] In the liquid cooling system described in this embodiment, a first one-way valve 34 and a first filter 35 are provided between the other end of the water tank 21 and the first heating device 32. The first one-way valve 34 can prevent liquid backflow in the first cooling circuit; the first filter 35 can filter the liquid in the first cooling circuit.

[0029] The liquid cooling system described in this embodiment further includes a second cooling circuit connected in parallel with the first cooling circuit. The second cooling circuit includes a second cooling valve 41 and a second heating device 42. The other end of the water pipe 11 is connected to the other end of the water tank 21 via the second heating device 42. The second cooling valve 41 is located between the other end of the water pipe 11 and the second heating device 42. Specifically, by setting up the first and second cooling circuits in parallel, this embodiment can simultaneously cool the first heating device 32 (e.g., a vehicle) and the second heating device 42 (e.g., a battery).

[0030] In the liquid cooling system described in this embodiment, a second flow meter 43 is provided between the other end of the water pipe 11 and the second cooling valve 41. This arrangement facilitates the determination of the flow rate of the second cooling circuit.

[0031] In the liquid cooling system described in this embodiment, a second one-way valve 44 and a second filter 45 are provided between the other end of the water tank 21 and the second heating device 42. The second one-way valve 44 can prevent liquid backflow in the second cooling circuit; the second filter 45 can filter the liquid in the second cooling circuit.

[0032] This embodiment describes a liquid cooling system, the cold source side system including a compressor 51, a condenser 52, and an electronic expansion valve 53; the heat exchanger 1 is provided with a refrigerant pipeline 12; one end of the compressor 51 is connected to one end of the condenser 52; the other end of the condenser 52 is connected to one end of the electronic expansion valve 53; the other end of the electronic expansion valve 53 is connected to the other end of the compressor 51 via the refrigerant pipeline 12. With the above arrangement, cooling capacity can be generated at the refrigerant pipeline 12, and then transferred to the water pipeline 11 through the heat exchanger 1.

[0033] In addition, temperature sensors and pressure sensors can be installed at the suction port and discharge port of compressor 51 respectively to facilitate connection of suction temperature, suction pressure, discharge temperature and discharge pressure; a temperature sensor can also be installed at condenser 52 to know the return air temperature.

[0034] In the liquid cooling system described in this embodiment, a dryer filter 54 is provided between the electronic expansion valve 53 and the condenser 52. This arrangement serves to filter impurities.

[0035] In the liquid cooling system described in this embodiment, a fan 55 is provided at the condenser 52. This arrangement facilitates the removal of heat from the condenser 52.

[0036] Example 2, as Figure 2 As shown, unlike Embodiment 1, this embodiment of the liquid cooling system has two refrigerant pipes 12 and two cold source side systems; the refrigerant pipes 12 and the cold source side systems are arranged in a one-to-one correspondence. By setting two cold source side systems, this embodiment can control one compressor 51 to operate, or it can control two compressors 51 to operate simultaneously, thereby providing different cooling capacities.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A liquid cooling system, characterized in that: It includes a cold source side system and a cooling side system; a heat exchanger (1) is provided between the cold source side system and the cooling side system; the heat exchanger (1) is provided with water pipes (11); The cooling system includes a water tank (21), a circulating pump (22), a first cooling circuit, and a bypass pipe (23); the first cooling circuit includes a first cooling valve (31) and a first heating device (32); one end of the water tank (21) is connected to one end of the circulating pump (22); the other end of the circulating pump (22) is connected to one end of the water pipe (11); the other end of the water pipe (11) is connected to the other end of the water tank (21) through the bypass pipe (23); the bypass pipe (23) is equipped with a bypass valve (25); the other end of the water pipe (11) is connected to the other end of the water tank (21) after passing through the first heating device (32); the first cooling valve (31) is located between the other end of the water pipe (11) and the first heating device (32); the bypass pipe (23) is equipped with an electric heating element (24).

2. The liquid cooling system according to claim 1, characterized in that: A first flow meter (33) is provided between the other end of the water pipe (11) and the first cooling valve (31).

3. The liquid cooling system according to claim 1, characterized in that: A first one-way valve (34) and a first filter (35) are provided between the other end of the water tank (21) and the first heating device (32).

4. A liquid cooling system according to claim 1, characterized in that: The cooling system also includes a second cooling circuit connected in parallel with the first cooling circuit; the second cooling circuit includes a second cooling valve (41) and a second heating device (42); the other end of the water pipe (11) is connected to the other end of the water tank (21) after passing through the second heating device (42); the second cooling valve (41) is located between the other end of the water pipe (11) and the second heating device (42).

5. A liquid cooling system according to claim 4, characterized in that: A second flow meter (43) is provided between the other end of the water pipe (11) and the second cooling valve (41).

6. A liquid cooling system according to claim 4, characterized in that: A second one-way valve (44) and a second filter (45) are provided between the other end of the water tank (21) and the second heating device (42).

7. A liquid cooling system according to claim 1, characterized in that: The cold source system includes a compressor (51), a condenser (52), and an electronic expansion valve (53); the heat exchanger (1) is provided with a refrigerant pipeline (12); one end of the compressor (51) is connected to one end of the condenser (52); the other end of the condenser (52) is connected to one end of the electronic expansion valve (53); the other end of the electronic expansion valve (53) is connected to the other end of the compressor (51) through the refrigerant pipeline (12).

8. A liquid cooling system according to claim 7, characterized in that: A dryer filter (54) is provided between the electronic expansion valve (53) and the condenser (52).

9. A liquid cooling system according to claim 7, characterized in that: A fan (55) is provided at the condenser (52).

10. A liquid cooling system according to claim 1, characterized in that: The heat exchanger (1) is provided with two fluorine pipes (12); the number of cold source side systems is two; the fluorine pipes (12) are set one-to-one with the cold source side systems.

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