Cold liquid dispensing device

Abstract

This utility model belongs to the field of cold liquid distribution technology and discloses a cold liquid distribution device. The cold liquid distribution device includes a cabinet, a piping module, a heat exchange module, and a control system. The piping module, heat exchange module, and control system are all installed in the cabinet. The piping module includes an inlet pipe and an outlet pipe. The heat exchange module includes a heat exchanger and a radiator. The inlet pipe is connected to the inlet of the heat exchanger, and the outlet pipe is connected to the outlet of the heat exchanger. Along the length of the cabinet, the radiator is located on one side of the heat exchanger, and the control system is located on the other side of the heat exchanger. The piping module is arranged between the radiator and the control system. The cold liquid distribution device of this utility model adopts a modular layout. The heat exchange module and the control system are arranged at intervals along the length of the cabinet, while the piping module is arranged between the heat exchange module and the control system. This allows for a compact overall structure, significantly improving integration and space utilization, thereby reducing the space occupied.

Description

Technical Field

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

[0002] The Coolant Distribution Unit (CDU) is a core component of industrial cooling systems, responsible for precisely delivering low-temperature coolant to heat sources and recovering high-temperature return fluid. With the miniaturization and denser deployment of high-power equipment, the space occupied by cooling systems has become a key factor restricting equipment layout. However, existing coolant distribution units suffer from significant shortcomings in integration, specifically their loose structural layout, resulting in a large overall size and low space utilization.

[0003] Therefore, the above problems urgently need to be solved. Utility Model Content

[0004] The purpose of this invention is to provide a cold liquid distribution device to solve the problem that existing cold liquid distribution devices have significant shortcomings in terms of integration, specifically their loose structural layout, which results in a large overall size and low space utilization.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] The coolant distribution device includes a cabinet, and the coolant distribution device further includes:

[0007] The piping module is installed in the cabinet and includes an inlet pipe and an outlet pipe;

[0008] A heat exchange module is installed in the cabinet and includes a heat exchanger and a radiator. The liquid inlet pipe is connected to the liquid inlet of the heat exchanger, and the liquid outlet pipe is connected to the liquid outlet of the heat exchanger. The radiator is configured to dissipate heat from the heat exchanger and is located on one side of the heat exchanger along the length of the cabinet.

[0009] The control system is installed in the cabinet along the length of the cabinet, and is located on the other side of the heat exchanger. The piping module is arranged between the heat exchanger and the control system.

[0010] Preferably, the pipeline module further includes a water tank and a circulation pump, wherein the water tank is connected to the liquid outlet and the circulation pump is connected between the water tank and the liquid outlet pipe.

[0011] Preferably, the water tank and the circulation pump are arranged at intervals along the width of the cabinet.

[0012] Preferably, the pipeline module includes two circulation pumps connected in parallel between the water tank and the outlet pipe, and the two circulation pumps are arranged at intervals along the length of the cabinet.

[0013] Preferably, the inlet pipe includes a first pipe section and a second pipe section. The first pipe section extends along the width direction of the cabinet. One end of the first pipe section is connected to the inlet through the second pipe section. The other end of the first pipe section is connected to a return pipe. The return pipe is arranged on one side of the heat exchange module along the width direction of the cabinet, and the end of the return pipe away from the first pipe section is connected to an inlet connector provided on the cabinet. The outlet pipe is connected to an outlet connector provided on the cabinet through a supply pipe. The supply pipe is arranged on one side of the heat exchange module along the width direction of the cabinet. Both the outlet pipe and the supply pipe are arranged on the same side as the return pipe.

[0014] Preferably, the first pipe section and the circulating pump are arranged at intervals along the width direction of the cabinet, and the first pipe section is arranged on the side close to the heat exchanger.

[0015] Preferably, the cold liquid distribution device further includes a drain pipe that can be connected to the water tank.

[0016] Preferably, the drain pipe is arranged on one side of the heat exchange module along the width direction of the cabinet, and the drain pipe is arranged on the same side as the return pipe.

[0017] Preferably, the coolant distribution device further includes an expansion tank, which is connected to the water tank via a connecting pipe. The expansion tank and the connecting pipe are arranged on one side of the heat exchange module along the width direction of the cabinet, and both the expansion tank and the connecting pipe are arranged on the same side as the return pipe.

[0018] Preferably, the coolant distribution device further includes a discharge pipe and a replenishment pipe, which are arranged on one side of the heat exchange module along the width of the cabinet. The discharge pipe is connected to the water tank, and the replenishment pipe is connected to the inlet pipe. Both the discharge pipe and the replenishment pipe are arranged on the same side as the return pipe.

[0019] The beneficial effects of this utility model are:

[0020] The coolant distribution device in this invention adopts a modular layout, wherein the heat exchange module and the control system are arranged at intervals along the length of the cabinet, while the pipeline module is arranged between the heat exchange module and the control system, thereby enabling the overall structure to be compact, greatly improving integration and space utilization, and thus reducing the space occupied. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the cold liquid distribution device in an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the inlet pipe and return pipe in an embodiment of this utility model;

[0023] Figure 3 This is a schematic diagram of the cold liquid distribution device after removing the cabinet, inlet pipe, heat exchange module, control system and return pipe in the embodiment of this utility model.

[0024] In the picture:

[0025] 1. Cabinet; 11. Liquid inlet connector; 12. Liquid outlet connector; 13. Drain connector; 14. Discharge connector; 15. Liquid replenishment connector;

[0026] 2. Piping module; 21. Inlet pipe; 211. First pipe section; 212. Second pipe section; 213. Flow meter; 214. Filter; 215. Third pipe section; 2151. First connector; 2152. Ball valve; 22. Outlet pipe; 23. Water tank; 231. Infusion pipe; 232. Level gauge; 233. Pressure sensor; 24. Circulation pump; 241. Transition pipe; 2411. One-way check valve;

[0027] 3. Heat exchange module; 31. Heat exchanger; 32. Radiator; 321. Fan;

[0028] 4. Control system; 41. PLC controller; 42. Power supply;

[0029] 51. Return pipe; 511. First temperature sensor; 52. Supply pipe; 521. Second temperature sensor;

[0030] 61. Drain pipe; 62. Discharge pipe; 63. Liquid replenishment pipe; 631. Second connector; 64. Connecting pipe; 641. Safety valve;

[0031] 7. Expansion tank; 71. Connecting pipe;

[0032] 8. Temperature and humidity sensor. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0037] Please see Figures 1 to 3 This embodiment provides a coolant distribution device, including a cabinet 1, a piping module 2, a heat exchange module 3, and a control system 4. The piping module 2, the heat exchange module 3, and the control system 4 are all installed in the cabinet 1. The piping module 2 includes an inlet pipe 21 and an outlet pipe 22. The heat exchange module 3 includes a heat exchanger 31. The inlet pipe 21 is connected to the inlet of the heat exchanger 31. The inlet pipe 21 is used to recover the high-temperature reflux liquid from the cooling ring network pipeline and transport the high-temperature reflux liquid to the heat exchanger 31. The heat exchanger 31 cools down the high-temperature reflux liquid to convert it into low-temperature coolant. The outlet pipe 22 is connected to the outlet of the heat exchanger 31 and is used to output the low-temperature coolant, so that the low-temperature coolant re-enters the cooling ring network pipeline. The low-temperature coolant is distributed to each heat source node through the cooling ring network pipeline, thereby cooling down each heat source node, thus forming a closed-loop cooling circuit.

[0038] It is understood that the heat exchange module 3 also includes a radiator 32, which is configured to dissipate heat from the heat exchanger 31. For example, in this embodiment, the radiator 32 consists of two fans 321, which are used to blow air onto the radiator 32, thereby completing the heat exchange of the high-temperature reflux liquid through the heat exchanger 31.

[0039] Furthermore, along the length of the cabinet 1, the radiator 32 is located on one side of the heat exchanger 31, while the control system 4 is located on the other side of the heat exchanger 31. The control system 4 is used to control the coolant distribution device to operate safely and reliably. In addition, the pipeline module 2 is arranged between the radiator 32 and the control system 4.

[0040] Based on the above, the coolant distribution device in this embodiment adopts a modular layout, wherein the heat exchange module 3 and the control system 4 are arranged at intervals along the length of the cabinet 1, and the pipeline module 2 is arranged between the heat exchange module 3 and the control system 4, thereby making the overall structure layout compact, greatly improving the integration and space utilization, and thus reducing the space occupied.

[0041] It is worth noting that the inlet pipe 21 is equipped with a flow meter 213 and a filter 214. The flow meter 213 is used to monitor the flow rate of the high-temperature return fluid transported along the inlet pipe 21 in real time, thereby confirming whether the coolant circulation is sufficient and avoiding heat dissipation failure of the heat source due to insufficient flow. The filter 214 is used to intercept impurities carried in the high-temperature return fluid to ensure the purity of the coolant, thereby preventing it from damaging downstream components, extending the service life of the coolant distribution device and extending the coolant replacement cycle.

[0042] Furthermore, the pipeline module 2 also includes a water tank 23 and a circulation pump 24. The water tank 23 is connected to the outlet via a liquid delivery pipe 231, and the circulation pump 24 is connected between the water tank 23 and the outlet pipe 22. The water tank 23 provides a buffer space to prevent the inlet pipe 21, outlet pipe 22 and other pipes from bursting under pressure. In addition, the water tank 23 is equipped with a level gauge 232. When the level gauge 232 detects that the liquid level is too low, the control system 4 controls the automatic replenishment of coolant into the water tank 23.

[0043] The circulation pump 24 is located downstream of the water tank 23 and provides circulation power to ensure that there is sufficient and stable coolant flowing through the heat source that needs to be cooled.

[0044] Based on the above, the water tank 23 and the circulating pump 24 are arranged at intervals along the width direction of the cabinet 1. That is, in this embodiment, the heat exchange module 3, the pipeline module 2 and the control system 4 are arranged along the length direction of the cabinet 1. As for the pipeline module 2, its structure makes full use of the width of the cabinet 1 for layout. Thus, this embodiment can further make the overall structure layout of the coolant distribution device more compact, thereby further improving the integration and space utilization, and further reducing the space occupied.

[0045] Furthermore, it is worth noting that for the heat exchange module 3, the two fans 321 of the radiator 32 are also arranged along the width direction of the cabinet 1, and the length direction of the heat exchanger 31 is the width direction of the cabinet 1. Additionally, for the control system 4, the control system 4 includes a PLC controller 41 and a power supply 42, which are also arranged along the width direction of the cabinet 1. Therefore, in this embodiment, the heat exchange module 3, the piping module 2, and the control system 4 are arranged along the length direction of the cabinet 1, and the structures of the heat exchange module 3, the piping module 2, and the control system 4 are all laid out using the width of the cabinet 1, making the overall structure of the coolant distribution device more compact, thereby further improving integration and space utilization.

[0046] Furthermore, the pipeline module 2 includes two circulation pumps 24, which are connected in parallel between the water tank 23 and the outlet pipe 22. The two circulation pumps 24 are arranged at intervals along the length of the cabinet 1. It can be understood that the two circulation pumps 24 can adopt a working mode in which one is on and the other is in standby mode, or they can adopt a working mode in which both are on. This embodiment does not make specific restrictions on this.

[0047] Based on the above, in this embodiment, the two circulating pumps 24 of the pipeline module 2 can be arranged using the length space of the cabinet 1, thereby making the layout of the pipeline module 2 more compact.

[0048] It is understood that the two circulation pumps 24 are arranged in parallel, and the length direction of the circulation pumps 24 is the width direction of the cabinet 1. That is, in this embodiment, the two circulation pumps 24 can be arranged using the length space of the cabinet 1, while any one circulation pump 24 is arranged using the width direction of the cabinet 1, thereby making the layout of the pipeline module 2 more compact.

[0049] It is worth noting that the downstream end of the circulating pump 24 is connected to the outlet pipe 22 through the transition pipe 241. The length direction of the transition pipe 241 is the width direction of the cabinet 1, which makes the layout of the pipe module 2 more compact. In addition, a one-way check valve 2411 is installed on the transition pipe 241 to prevent the coolant from flowing back.

[0050] Furthermore, in this embodiment, the liquid inlet pipe 21 includes a first pipe section 211 and a second pipe section 212. The first pipe section 211 extends along the width direction of the cabinet 1, that is, the length direction of the first pipe section 211 is the width direction of the cabinet 1. One end of the first pipe section 211 is connected to the liquid inlet through the second pipe section 212. The second pipe section 212 extends along the height direction of the cabinet 1, and the length direction of the second pipe section 212 is the height direction of the cabinet 1. Thus, the liquid inlet pipe 21 is arranged using the width and height directions of the cabinet 1.

[0051] The other end of the first pipe section 211 is connected to a return pipe 51. The return pipe 51 is arranged on one side of the heat exchange module 3 along the width direction of the cabinet 1, and the length direction of the return pipe 51 is the length direction of the cabinet 1. The end of the return pipe 51 away from the first pipe section 211 is connected to the liquid inlet connector 11 provided on the cabinet 1. The liquid outlet pipe 22 is connected to the liquid outlet connector 12 provided on the cabinet 1 through the liquid supply pipe 52. The liquid supply pipe 52 is also arranged on one side of the heat exchange module 3 along the width direction of the cabinet 1. Moreover, the liquid outlet pipe 22 and the liquid supply pipe 52 are arranged on the same side as the return pipe 51, so that the layout between the return pipe 51 and the liquid supply pipe 52 and the heat exchange module 3 is more compact, and no extra pipes need to be arranged between the liquid outlet pipe 22 and the liquid supply pipe 52, thereby further improving the integration of the cold liquid distribution device.

[0052] It is worth noting that the return pipe 51 and the supply pipe 52 are respectively equipped with a first temperature sensor 511 and a second temperature sensor 521. The first temperature sensor 511 is used to monitor the temperature of the high-temperature return liquid flowing to the heat exchanger 31 in real time, and the second temperature sensor 521 is used to monitor the temperature of the low-temperature coolant sent to the cooling ring network pipeline in real time, so as to ensure that the coolant can effectively and fully dissipate heat from the heat source.

[0053] Based on the above, the first pipe section 211 and the circulating pump 24 are arranged at intervals along the width direction of the cabinet 1, and the first pipe section 211 is arranged on the side close to the heat exchanger 31, so that the liquid inlet pipe 21 and the circulating pump 24 are arranged more reasonably in the width direction of the cabinet 1, thereby making the structural layout of the pipeline module 2 more compact.

[0054] In addition, the coolant distribution device also includes a drain pipe 61, which can be connected to the water tank 23. When the system pressure rises abnormally, excess liquid and / or gas can be discharged through the drain pipe 61 to prevent the pipe from bursting.

[0055] Specifically, the water tank 23 is equipped with a pressure sensor 233, which is used to monitor the pressure in real time. When the pressure sensor 233 detects an abnormal increase in pressure, the control system 4 controls the discharge of excess liquid and / or gas through the vent pipe 61.

[0056] The drain pipe 61 is arranged on one side of the heat exchange module 3 along the width direction of the cabinet 1. The drain pipe 61 and the return pipe 51 are arranged on the same side. Thus, this embodiment can make the layout of the return pipe 51, the supply pipe 52 and the drain pipe 61 with the heat exchange module 3 more compact, thereby further improving the integration of the cold liquid distribution device.

[0057] It is worth noting that in this embodiment, a connecting pipe 64 extending along the width direction of the cabinet 1 is connected in series between the drain pipe 61 and the water tank 23. A safety valve 641 is installed on the connecting pipe 64. The safety valve 641 can control the opening or closing of the drain pipe 61 and the connecting pipe 64. When the pressure sensor 233 detects an abnormal increase in pressure, the control system 4 controls the opening of the drain pipe 61 and the connecting pipe 64, thereby directionally discharging excess liquid and / or gas through the drain pipe 61.

[0058] Furthermore, the coolant distribution device also includes an expansion tank 7, which is connected to the water tank 23 via a connecting pipe 71 and is used to balance the system pressure, making the operation of the coolant distribution device more stable. Specifically, the connecting pipe 71 is connected to the connecting pipe 64. The expansion tank 7 and the connecting pipe 71 are arranged on one side of the heat exchange module 3 along the width direction of the cabinet 1. The expansion tank 7 and the connecting pipe 71 are both arranged on the same side as the return pipe 51, thereby further improving the integration of the coolant distribution device.

[0059] Furthermore, in this embodiment, the expansion tank 7 is arranged below the control system 4, and a temperature and humidity sensor 8 is also arranged below the control system 4. That is, this embodiment makes full use of the height space of the cabinet 1 to arrange the expansion tank 7 and the temperature and humidity sensor 8, thereby further improving the integration and space utilization of the cold liquid distribution device.

[0060] In addition, the coolant distribution device also includes a drain pipe 62 and a replenishment pipe 63, which are arranged on one side of the heat exchange module 3 along the width direction of the cabinet 1.

[0061] The drain pipe 62 is connected to the water tank 23. Specifically, the drain pipe 62 is connected to the drain pipe 61, so that the old coolant can be completely drained when the coolant is replaced.

[0062] The replenishment pipe 63 is connected to the inlet pipe 21. Specifically, the replenishment pipe 63 is connected to the third pipe section 215, which is connected between the second pipe section 212 and the heat exchanger 31. The third pipe section 215 and the replenishment pipe 63 are respectively provided with a first connector 2151 and a second connector 631. The third pipe section 215 and the replenishment pipe 63 are connected through the first connector 2151 and the second connector 631, so as to inject new coolant into the coolant distribution device. Moreover, the new coolant flows through the heat exchanger 31, thereby ensuring that the temperature of the new coolant flowing to the cooling ring network pipe meets the requirements.

[0063] It is understandable that a ball valve 2152 is provided on the third pipe section 215, and the control system 4 controls the opening or closing of the third pipe section 215 and the replenishment pipe 63 through the ball valve 2152.

[0064] Therefore, in this embodiment, the discharge pipe 62 and the replenishment pipe 63 are both arranged on the same side as the return pipe 51, thereby further improving the integration of the cold liquid distribution device.

[0065] Based on the above description, the cabinet 1 is provided with an inlet connector 11, an outlet connector 12 and a drain connector 13 on one side wall along its length. The inlet connector 11 is connected to the return pipe 51, the outlet connector 12 is connected to the supply pipe 52, and the drain connector 13 is connected to the drain pipe 61. Thus, in this embodiment, the return pipe 51, the supply pipe 52 and the drain pipe 61 are arranged on the same side of the cabinet 1 along its length.

[0066] In addition, a drain connector 14 and a replenishment connector 15 are provided on the other side wall of the cabinet 1 along its length direction. The drain connector 14 is connected to the drain pipe 62, and the replenishment connector 15 is connected to the replenishment pipe 63. Thus, in this embodiment, the drain pipe 62 and the replenishment pipe 63 are arranged on the same side of the cabinet 1 along its length direction, and the drain pipe 62 and the replenishment pipe 63 are arranged on the same side of the control system 4 along the width direction of the cabinet 1.

[0067] In summary, this embodiment can further improve the integration and space utilization of the coolant distribution device.

[0068] It should also be noted that the specific structure of the water tank 23, the circulating pump 24, all pipes, all joints, all sensors, and all valves mentioned above, as well as the connection methods and operating principles between the pipes, are all existing technologies. Therefore, this embodiment will not elaborate on these aspects.

[0069] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A coolant distribution device, comprising a cabinet (1), characterized in that, The cold liquid distribution device further includes: The pipeline module (2) is installed in the cabinet (1) and includes an inlet pipe (21) and an outlet pipe (22); A heat exchange module (3) is installed in the cabinet (1) and includes a heat exchanger (31) and a radiator (32). The liquid inlet pipe (21) is connected to the liquid inlet of the heat exchanger (31), and the liquid outlet pipe (22) is connected to the liquid outlet of the heat exchanger (31). The radiator (32) is configured to dissipate heat from the heat exchanger (31). Along the length of the cabinet (1), the radiator (32) is located on one side of the heat exchanger (31). The control system (4) is installed in the cabinet (1) along the length of the cabinet (1). The control system (4) is located on the other side of the heat exchanger (31). The pipeline module (2) is arranged between the radiator (32) and the control system (4).

2. The cold liquid distribution device according to claim 1, characterized in that, The pipeline module (2) also includes a water tank (23) and a circulation pump (24). The water tank (23) is connected to the liquid outlet, and the circulation pump (24) is connected between the water tank (23) and the liquid outlet pipe (22).

3. The cold liquid distribution device according to claim 2, characterized in that, The water tank (23) and the circulation pump (24) are arranged at intervals along the width direction of the cabinet (1).

4. The cold liquid distribution device according to claim 2, characterized in that, The pipeline module (2) includes two circulation pumps (24), which are connected in parallel between the water tank (23) and the outlet pipe (22), and the two circulation pumps (24) are arranged at intervals along the length of the cabinet (1).

5. The cold liquid distribution device according to claim 2, characterized in that, The inlet pipe (21) includes a first pipe section (211) and a second pipe section (212). The first pipe section (211) extends along the width direction of the cabinet (1). One end of the first pipe section (211) is connected to the inlet through the second pipe section (212). The other end of the first pipe section (211) is connected to a return pipe (51). The return pipe (51) is arranged on one side of the heat exchange module (3) along the width direction of the cabinet (1). The end of the return pipe (51) away from the first pipe section (211) is connected to the inlet connector (11) provided on the cabinet (1). The outlet pipe (22) is connected to the outlet connector (12) provided on the cabinet (1) through the supply pipe (52). The supply pipe (52) is arranged on one side of the heat exchange module (3) along the width direction of the cabinet (1). The outlet pipe (22) and the supply pipe (52) are both arranged on the same side as the return pipe (51).

6. The cold liquid distribution device according to claim 5, characterized in that, The first pipe section (211) and the circulating pump (24) are arranged at intervals along the width direction of the cabinet (1), and the first pipe section (211) is arranged on the side close to the heat exchanger (31).

7. The cold liquid distribution device according to claim 5, characterized in that, The cold liquid distribution device also includes a drain pipe (61) which is connected to the water tank (23).

8. The cold liquid distribution device according to claim 7, characterized in that, The drain pipe (61) is arranged on one side of the heat exchange module (3) along the width direction of the cabinet (1), and the drain pipe (61) is arranged on the same side as the return pipe (51).

9. The cold liquid distribution device according to claim 5, characterized in that, The cold liquid distribution device also includes an expansion tank (7), which is connected to the water tank (23) via a connecting pipe (71). The expansion tank (7) and the connecting pipe (71) are arranged on one side of the heat exchange module (3) along the width direction of the cabinet (1). The expansion tank (7) and the connecting pipe (71) are both arranged on the same side as the return pipe (51).

10. The cold liquid distribution device according to claim 5, characterized in that, The cold liquid distribution device further includes a discharge pipe (62) and a replenishment pipe (63). The discharge pipe (62) and the replenishment pipe (63) are arranged on one side of the heat exchange module (3) along the width direction of the cabinet (1). The discharge pipe (62) is connected to the water tank (23), and the replenishment pipe (63) is connected to the inlet pipe (21). The discharge pipe (62) and the replenishment pipe (63) are both arranged on the same side as the return pipe (51).

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