Multi-channel parallel liquid cooling cabinet for high-density server

Abstract

The invention relates to the field of computers and auxiliary equipment, and discloses a high-density server-oriented multi-channel parallel liquid cooling cabinet, which comprises a server cabinet body and a multi-channel liquid cooling heat dissipation cabinet, a liquid leakage detection mechanism; the liquid leakage detection mechanism is arranged at the bottom of the multi-channel liquid cooling heat dissipation cabinet, the liquid leakage detection mechanism is used for detecting the liquid leakage condition of the parallel liquid cooling mechanism, and the liquid leakage detection mechanism comprises a liquid leakage detection plate, a flow guide plate, a leaked liquid collection barrel, a liquid level switch, a powder coating, a flow guide opening and a supporting frame. The mode that powder coating mark leaving and liquid level switch alarming are combined is adopted, graded response to the liquid leakage amount is achieved, and when a small amount of liquid is leaked, the powder coating provides early warning; when the liquid leakage amount is increased, the liquid level switch triggers the alarm to give out a sound-light alarm, and the graded alarm mechanism enables a manager to carry out corresponding treatment according to the liquid leakage condition, so that the response efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of computers and auxiliary equipment, and more specifically to the field of liquid cooling cabinets, and in particular to a multi-channel parallel liquid cooling cabinet for high-density servers. Background Art

[0002] With the rapid development of information technology, the scale of data centers continues to expand, and the density of servers is also increasing. High-density servers generate a lot of heat during operation. If heat is not dissipated in a timely and effective manner, it will lead to reduced server performance, increased failure rates, and even damage to hardware equipment.

[0003] According to Chinese patent announcement number: CN118591154A, a high-density server cabinet based on phase change liquid cooling is disclosed, comprising: a server cabinet body; a plurality of server chassis units arranged in the server cabinet body, each of which is provided with a heating element; a heat dissipation unit, comprising a microstructured cold head arranged in each server chassis unit, the microstructured cold head being in contact with the heating element, a heat exchange cavity filled with a working medium being provided in the microstructured cold head, the working medium flowing in from an inlet arranged in the microstructured cold head and then flowing out from an outlet arranged in the microstructured cold head; a heat dissipation unit arranged in The working fluid circulation unit within the server cabinet includes a housing; a condenser, a buffer tank, and a drive element are sequentially connected within the housing. The hot working fluid flowing out of the microstructured cold head is driven by the drive element to flow into the condenser. After condensing, the working fluid flows out of the condenser and enters the liquid storage tank for further gas-liquid separation. The working fluid in the liquid storage tank flows out of the housing due to the driving force of the drive element and then flows into the heat exchange chamber, forming a circulation loop. A cooling fan is installed on one or both sides of the condenser, and the condenser and the cooling fan work together to condense the two-phase working fluid. Compared with the prior art, the present invention achieves two-phase boiling heat exchange for the heating element through the microstructured cold head. Two-phase liquid cooling is an advanced cooling technology that uses the latent heat of a liquid working fluid during phase change to remove large amounts of heat. It has the characteristics of a high heat transfer coefficient and low energy consumption. However, this server cabinet still has shortcomings. In some cases, managers need to regularly check the liquid cooling system for signs of leaks. This relies on manual observation, which is not only inefficient but also susceptible to human factors such as negligence or lack of experience. In addition, manual observation cannot be monitored in real time, and the optimal time to deal with a leak may be missed. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a multi-channel parallel liquid cooling cabinet for high-density servers, which solves the above problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-channel parallel liquid cooling cabinet for high-density servers, comprising:

[0006] Server cabinets and multi-channel liquid cooling cabinets;

[0007] Parallel liquid cooling mechanism;

[0008] Leakage detection mechanism; the leakage detection mechanism is arranged at the bottom of the multi-channel liquid cooling heat dissipation cabinet, and the leakage detection mechanism is used to detect leakage of the parallel liquid cooling mechanism. The leakage detection mechanism includes a leakage detection plate, a guide plate, a leakage collection cylinder, a liquid level switch, a powder coating, a guide port and a support frame. The number of the support frames is set to two, and the two support frames are respectively fixedly connected to the front and rear sides of the bottom of the multi-channel liquid cooling heat dissipation cabinet. The two support frames are fixedly connected with a leakage detection plate near the contact position between the server cabinet and the multi-channel liquid cooling heat dissipation cabinet. Guide plates are symmetrically arranged on the front and rear sides of the upper surface of the leakage detection plate. A triangular detection area is formed between the two guide plates and the leakage detection plate. The surface of the leakage detection plate located in the triangular detection area is coated with powder coating, and a leakage collection cylinder is arranged below the end of the two guide plates away from the contact position between the server cabinet and the multi-channel liquid cooling heat dissipation cabinet.

[0009] Preferably, a liquid level switch is provided on the upper surface of the leakage collecting tube, and a detection end of the liquid level switch is provided inside the leakage collecting tube.

[0010] When a slight leak occurs in the liquid cooling system, the amount of leaked coolant is very small and may not drip into the leak collection tube immediately, but spread on the contact surface at a very slow speed. At this time, the powder coating on the surface of the triangular detection area plays a role. Since the leakage detection plate is tilted, the dripping coolant leaves traces on the surface of the powder coating. Since the triangular detection area is located in a specific area formed between the two guide plates and the leakage detection plate, even a very small amount of coolant leakage will be guided here by the guide plate and contact with the powder coating, leaving traces, so that even very small leaks can be detected in time. Managers can detect leaks in time by observing the length of the traces on the leakage detection plate and take measures before the liquid level switch triggers the alarm, such as checking whether the connection of the liquid cooling system is loose or whether there are tiny cracks. When the leakage volume gradually increases, the discolored coolant will The liquid continues to flow along the guide plate to the leakage collection tube. The liquid level switch on the upper surface of the leakage collection tube will detect the change in liquid level. When the liquid level switch detects that the liquid level in the leakage collection tube has risen and reached the preset threshold, it will trigger an electrical signal and transmit this signal to the alarm on the upper surface of the server cabinet. After receiving the signal, the alarm will emit an audible and visual alarm to notify the management personnel that the liquid cooling system has leaked and needs to be dealt with in time. This method provides timely and proactive alarms for management personnel, even if they do not directly observe the coolant traces on the powder coating. In this way, the combination of powder coating traces and liquid level switch alarms realizes a graded response to the amount of leakage. When the leakage is small, the powder coating provides an early warning; when the leakage volume increases, the liquid level switch triggers the alarm and emits an audible and visual alarm. This graded alarm mechanism allows management personnel to take corresponding measures according to the leakage situation, thereby improving the response efficiency.

[0011] Preferably, the parallel liquid cooling mechanism is arranged at the contact position between the server cabinet and the multi-channel liquid cooling heat dissipation cabinet. The parallel liquid cooling mechanism is used to dissipate heat for high-density servers stacked inside the server cabinet. The parallel liquid cooling mechanism includes a heat sink, a motor, a guide fan, a heat exchange plate, a liquid cooling surround pipe, a liquid inlet pipe, a liquid outlet pipe, a connecting sleeve, a liquid pump, a refrigerator and a circulation pipe. The number of the heat sinks is set to multiple, and the multiple heat sinks are distributed up and down at the contact position between the server cabinet and the multi-channel liquid cooling heat dissipation cabinet.

[0012] Preferably, a plurality of heat exchange fins are distributed transversely in the middle of the heat dissipation plate, liquid cooling surrounding tubes are distributed between the plurality of heat exchange fins, and the liquid cooling surrounding tubes are interspersed and distributed between the plurality of heat exchange fins.

[0013] Preferably, two guide fans are provided on a side of the heat sink close to the server cabinet, and a motor is provided on one end of the two guide fans close to the heat exchange plate, and the output end of the motor is transmission-connected to the guide fan.

[0014] Preferably, both upper and lower ends of the liquid-cooled surround tube are fixedly connected with connecting sleeves, the upper and lower connecting sleeves are respectively connected with a liquid outlet pipe and a liquid inlet pipe, and a circulation pipe is provided at one end of the liquid outlet pipe away from the connecting sleeve.

[0015] Preferably, one end of the circulation pipe is connected to multiple liquid outlet pipes, and the other end of the circulation pipe is connected to multiple liquid outlet pipes. A liquid pump is provided at the lower end of the circulation pipe, the liquid inlet end of the liquid pump is connected to one end of the circulation pipe, and the liquid outlet end of the liquid pump is connected to the other end of the circulation pipe. A refrigerator is provided at the end of the circulation pipe away from the liquid pump.

[0016] Preferably, an alarm is provided on the upper surface of the server cabinet, and the alarm is electrically connected to the liquid level switch.

[0017] Preferably, the server cabinet and the multi-channel liquid cooling cabinet are hingedly provided with a cabinet door 1 and a cabinet door 2 on the front sides thereof, and ventilation nets are provided below the cabinet door 1 and the cabinet door 2.

[0018] Preferably, a plurality of server supports are distributed up and down inside the server cabinet, each of the server supports is fixedly connected to the server cabinet, and a plurality of server wiring holes are opened on the rear side of the server cabinet.

[0019] Beneficial effects

[0020] The present invention provides a multi-channel parallel liquid cooling cabinet for high-density servers. Compared with the existing technology, it has the following advantages:

[0021] 1. In the present invention, by setting up a leakage detection mechanism, when a slight leak occurs in the liquid cooling system, the amount of leaked coolant is very small and may not drip into the leakage collection tube immediately, but spread on the contact surface at a very slow speed. At this time, the powder coating on the surface of the triangular detection area plays a role. Since the leakage detection plate is tilted, the dripping coolant leaves traces on the surface of the powder coating. Since the triangular detection area is located in a specific area formed between the two guide plates and the leakage detection plate, even a very small amount of coolant leakage will be guided here by the guide plate and contact with the powder coating, thereby leaving traces, so that even very small leaks can be detected in time. The management personnel can detect the leak in time by observing the length of the trace on the leakage detection plate and take measures before the liquid level switch triggers the alarm, such as checking whether the connection of the liquid cooling system is loose or whether there are tiny cracks. When the leakage amount gradually increases The discolored coolant will continue to flow along the guide plate to the leakage collection tube. The liquid level switch on the upper surface of the leakage collection tube will detect the change in liquid level. When the liquid level switch detects that the liquid level in the leakage collection tube has risen and reached the preset threshold, it will trigger an electrical signal and transmit this signal to the alarm on the upper surface of the server cabinet. After receiving the signal, the alarm will emit an audible and visual alarm to notify the management personnel that a leak has occurred in the liquid cooling system and that timely treatment is required. This method provides timely and proactive alarms for management personnel, even if they have not directly observed the coolant traces on the powder coating. In this way, the combination of powder coating traces and liquid level switch alarms realizes a graded response to the amount of leakage. When a small amount of leakage occurs, the powder coating provides an early warning; when the amount of leakage increases, the liquid level switch triggers the alarm and emits an audible and visual alarm. This graded alarm mechanism allows management personnel to take corresponding measures according to the leakage situation, thereby improving response efficiency.

[0022] 2. In the present invention, through the parallel liquid cooling mechanism, the liquid pump draws the cooling liquid from the lower end of the circulation pipe. After being cooled by the refrigerator, the cooling liquid is transported to the liquid inlet pipe of each heat sink through the circulation pipe. After entering the heat sink, the cooling liquid flows through the liquid cooling surround pipe interspersed and distributed between the heat exchange plates to absorb the heat emitted by the server. The cooling liquid after absorbing the heat is collected into the circulation pipe through the liquid outlet pipe and finally returns to the liquid pump to complete a cycle. The guide fan installed on the heat sink rotates under the drive of the motor, forcibly extracting the heat generated by the server, dissipating it into the multi-channel liquid cooling heat dissipation cabinet through the heat exchange plates, and finally discharged through the ventilation network. In this way, the heat dissipation method combined with liquid cooling and air cooling can quickly and effectively take away the heat generated by the server, avoid performance degradation or damage caused by overheating of the server, and can process the heat of multiple servers at the same time, which is suitable for high-density server environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1This is a schematic diagram of the front three-dimensional structure of a multi-channel parallel liquid cooling cabinet for high-density servers proposed by the present invention;

[0024] Figure 2 This is a schematic diagram of the right side internal structure of a multi-channel parallel liquid cooling cabinet for high-density servers proposed by the present invention;

[0025] Figure 3 This is a schematic diagram of the left side internal structure of a multi-channel parallel liquid cooling cabinet for high-density servers proposed by the present invention;

[0026] Figure 4 This is a schematic diagram of the rear three-dimensional structure of a multi-channel parallel liquid cooling cabinet for high-density servers proposed by the present invention;

[0027] Figure 5 This is a schematic diagram of the front structure of a heat sink in a multi-channel parallel liquid cooling cabinet for high-density servers proposed by the present invention;

[0028] Figure 6 This is a schematic diagram of the rear structure of a heat sink in a multi-channel parallel liquid cooling cabinet for high-density servers proposed by the present invention;

[0029] Figure 7 This is a schematic structural diagram of a liquid leakage detection mechanism in a multi-channel parallel liquid cooling cabinet for high-density servers proposed by the present invention;

[0030] Figure 8 The present invention proposes a multi-channel parallel liquid cooling cabinet for high-density servers Figure 7 A magnified view of the middle panel.

[0031] Legend:

[0032] 1. Server cabinet; 2. Multi-channel liquid cooling cabinet; 3. Parallel liquid cooling mechanism; 301. Heat sink; 302. Motor; 303. Guide fan; 304. Heat exchanger; 305. Liquid cooling surround pipe; 306. Liquid inlet pipe; 307. Liquid outlet pipe; 308. Connecting sleeve; 309. Liquid pump; 310. Refrigerator; 311. Circulation pipe; 4. Liquid leakage detection mechanism; 401. Liquid leakage detection plate; 402. Guide plate; 403. Liquid leakage collection cylinder; 404. Liquid level switch; 405. Powder coating; 406. Diversion port; 407. Support frame; 5. Server support; 6. Server wiring hole; 7. Cabinet door 1; 8. Cabinet door 2; 9. Ventilation net; 10. Alarm. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] See also Figures 1-8 The present invention provides two technical solutions, specifically including the following embodiments:

[0035] Example 1:

[0036] The liquid cooling cabinet of the present invention belongs to computers and auxiliary equipment, and provides a multi-channel parallel liquid cooling cabinet for high-density servers, including: a server cabinet body 1 and a multi-channel liquid cooling heat dissipation cabinet 2; a liquid leakage detection mechanism 4; the liquid leakage detection mechanism 4 is arranged at the bottom of the multi-channel liquid cooling heat dissipation cabinet 2, and the liquid leakage detection mechanism 4 is used to detect the leakage of the parallel liquid cooling mechanism 3. The liquid leakage detection mechanism 4 includes a liquid leakage detection plate 401, a guide plate 402, a liquid leakage collection cylinder 403, a liquid level switch 404, a powder coating 405, a guide port 406 and a support frame 407. The number of support frames 407 is set to two, and the two support frames 407 are respectively fixedly connected to the front and back sides of the bottom of the multi-channel liquid cooling heat dissipation cabinet 2, and the two support frames 407 are close to the server cabinet body. 1 and the multi-channel liquid cooling heat dissipation cabinet 2 are fixedly connected with a leakage detection plate 401, and guide plates 402 are symmetrically arranged on the front and rear sides of the upper surface of the leakage detection plate 401. A triangular detection area is formed between the two guide plates 402 and the leakage detection plate 401. The surface of the leakage detection plate 401 located in the triangular detection area is coated with a powder coating 405. A leakage collection tube 403 is arranged below one end of the two guide plates 402 away from the contact position of the server cabinet 1 and the multi-channel liquid cooling heat dissipation cabinet 2. A liquid level switch 404 is arranged on the upper surface of the leakage collection tube 403, and the detection end of the liquid level switch 404 is arranged inside the leakage collection tube 403. An alarm 10 is provided on the upper surface of the server cabinet 1, and the alarm 10 is electrically connected to the liquid level switch 404.

[0037] During operation, when a slight leak occurs in the liquid cooling system, the amount of leaked coolant is very small and may not drip into the leakage collection tube 403 immediately, but spread on the contact surface at a very slow speed. At this time, the powder coating 405 located on the surface of the triangular detection area plays a role. Since the leakage detection plate 401 is tilted, the dripping coolant leaves traces on the surface of the powder coating 405. Since the triangular detection area is located in a specific area formed between the two guide plates 402 and the leakage detection plate 401, even a very small amount of coolant leakage will be guided here by the guide plate 402 and contact with the powder coating 405, thereby leaving traces, so that even very small leaks can be detected in time. The management personnel can detect the leak in time by observing the length of the trace on the leakage detection plate 401, and take measures before the liquid level switch 404 triggers the alarm, such as checking whether the connection of the liquid cooling system is loose or whether there are tiny cracks. When the leakage amount gradually increases, the discolored coolant will continue to flow along the The liquid flows along the guide plate 402 to the leakage collection tube 403. The liquid level switch 404 on the upper surface of the leakage collection tube 403 detects the change in the liquid level. When the liquid level switch 404 detects that the liquid level in the leakage collection tube 403 rises and reaches a preset threshold, it triggers an electrical signal and transmits this signal to the alarm 10 on the upper surface of the server cabinet 1. After receiving the signal, the alarm 10 emits an audible and visual alarm, notifying the management personnel that a leak has occurred in the liquid cooling system and that timely treatment is required. This method provides management personnel with a timely and proactive alarm, even if they do not directly observe the coolant traces on the powder coating 405. In this way, the combination of the traces left by the powder coating 405 and the alarm of the liquid level switch 404 realizes a graded response to the amount of leakage. When the leakage is small, the powder coating 405 provides an early warning; when the leakage amount increases, the liquid level switch 404 triggers the alarm 10, emitting an audible and visual alarm. This graded alarm mechanism allows management personnel to take appropriate measures according to the leakage situation, thereby improving response efficiency.

[0038] Example 2:

[0039] On the basis of embodiment 1, a parallel liquid cooling mechanism 3 is provided;The parallel liquid cooling mechanism 3 is arranged at the contact position of the server cabinet 1 and the multi-channel liquid cooling heat dissipation cabinet 2. The parallel liquid cooling mechanism 3 is used to dissipate heat for high-density servers stacked inside the server cabinet 1. The parallel liquid cooling mechanism 3 includes a heat sink 301, a motor 302, a guide fan 303, a heat exchanger 304, a liquid cooling surround pipe 305, a liquid inlet pipe 306, a liquid outlet pipe 307, a connecting sleeve 308, a liquid pump 309, a refrigerator 310 and a circulation pipe 311. The number of heat sinks 301 is set to be multiple, and the multiple heat sinks 301 are distributed up and down at the contact position of the server cabinet 1 and the multi-channel liquid cooling heat dissipation cabinet 2. A plurality of heat exchangers 304 are horizontally distributed in the middle of the heat sink 301, and liquid cooling surround pipes 305 are distributed between the multiple heat exchangers 304. The surrounding pipes 305 are interspersed and distributed between the multiple heat exchange plates 304. Two guide fans 303 are provided on the side of the heat dissipation plate 301 close to the server cabinet 1. The two guide fans 303 are provided with motors 302 at one end close to the heat exchange plate 304. The output end of the motor 302 is transmission-connected to the guide fan 303. The upper and lower ends of the liquid cooling surrounding pipe 305 are fixedly connected with connecting sleeves 308. The upper and lower connecting sleeves 308 are respectively connected to the liquid outlet pipe 307 and the liquid inlet pipe 306. The end of the liquid outlet pipe 307 away from the connecting sleeve 308 is provided with a circulation pipe 311. One end of the circulation pipe 311 is connected to multiple liquid outlet pipes 307, and the other end of the circulation pipe 311 is connected to multiple liquid outlet pipes 307. The lower end of the circulation pipe 311 is provided with a liquid pump 309. The liquid pump 309 is connected to the liquid pump 309. The liquid inlet end of 9 is connected to one end of the circulation pipe 311, and the liquid outlet end of the liquid pump 309 is connected to the other end of the circulation pipe 311. A refrigerator 310 is provided at the end of the circulation pipe 311 away from the liquid pump 309. The front sides of the server cabinet 1 and the multi-channel liquid cooling heat dissipation cabinet 2 are hinged with cabinet door 1 7 and cabinet door 2 8 respectively. A ventilation net 9 is provided under the cabinet door 1 7 and cabinet door 2 8. A plurality of server supports 5 are distributed above and below the interior of the server cabinet 1. Each server support 5 is fixedly connected to the server cabinet 1. A plurality of server wiring holes 6 are provided on the rear side of the server cabinet 1. The liquid pump 309 sucks the coolant from the lower end of the circulation pipe 311. After being cooled by the refrigerator 310, the coolant is transported to the liquid inlet of each heat dissipation plate 301 through the circulation pipe 311. After entering the heat sink 301 through pipe 306, the coolant flows through the liquid-cooled surround pipe 305 interspersed between the heat exchange fins 304, absorbing heat from the servers. The absorbed coolant then flows through the liquid outlet pipe 307 to the circulation pipe 311, ultimately returning to the liquid pump 309, completing a cycle. Driven by the motor 302, the guide fan 303 mounted on the heat sink 301 rotates, forcibly extracting heat generated by the servers and dissipating it through the heat exchange fins 304 into the multi-channel liquid-cooled heat sink 2. This combined liquid and air cooling method can quickly and effectively remove heat generated by the servers, preventing performance degradation or damage caused by server overheating. Furthermore, it can simultaneously handle the heat of multiple servers, making it suitable for high-density server environments.

[0040] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the application should be included in the scope of protection of the present application.

Claims

1. A multi-channel parallel liquid cooling cabinet for high-density servers, characterized by: include: A server cabinet (1) and a multi-channel liquid cooling cabinet (2); Parallel liquid cooling mechanism (3); A liquid leakage detection mechanism (4); the liquid leakage detection mechanism (4) is arranged at the bottom of the multi-channel liquid cooling heat dissipation cabinet (2), the liquid leakage detection mechanism (4) is used to detect the liquid leakage of the parallel liquid cooling mechanism (3), the liquid leakage detection mechanism (4) comprises a liquid leakage detection plate (401), a guide plate (402), a liquid leakage collection cylinder (403), a liquid level switch (404), a powder coating (405), a guide port (406) and a support frame (407), the number of the support frames (407) is set to two, the two support frames (407) are respectively fixedly connected to the front and rear sides of the bottom of the multi-channel liquid cooling heat dissipation cabinet (2), and the two The support frame (407) is fixedly connected to a liquid leakage detection plate (401) near the contact position between the server cabinet (1) and the multi-channel liquid cooling heat dissipation cabinet (2); guide plates (402) are symmetrically arranged on the front and rear sides of the upper surface of the liquid leakage detection plate (401); a triangular detection area is formed between the two guide plates (402) and the liquid leakage detection plate (401); a powder coating (405) is applied to the surface of the liquid leakage detection plate (401) located in the triangular detection area; and a liquid leakage collection cylinder (403) is arranged below one end of the two guide plates (402) away from the contact position between the server cabinet (1) and the multi-channel liquid cooling heat dissipation cabinet (2).

2. The multi-channel parallel liquid cooling cabinet for high-density servers according to claim 1, characterized in that: A liquid level switch (404) is provided on the upper surface of the leakage collecting tube (403), and a detection end of the liquid level switch (404) is provided inside the leakage collecting tube (403).

3. The multi-channel parallel liquid cooling cabinet for high-density servers according to claim 1, characterized in that: The parallel liquid cooling mechanism (3) is arranged at a contact position between the server cabinet (1) and the multi-channel liquid cooling heat dissipation cabinet (2). The parallel liquid cooling mechanism (3) is used to dissipate heat for high-density servers stacked inside the server cabinet (1). The parallel liquid cooling mechanism (3) comprises a heat dissipation plate (301), a motor (302), a guide fan (303), a heat exchange plate (304), a liquid cooling surrounding pipe (305), a liquid inlet pipe (306), a liquid outlet pipe (307), a connecting sleeve (308), a liquid pump (309), a refrigerator (310) and a circulation pipe (311). The number of the heat dissipation plates (301) is set to be multiple, and the multiple heat dissipation plates (301) are distributed vertically at a contact position between the server cabinet (1) and the multi-channel liquid cooling heat dissipation cabinet (2).

4. The multi-channel parallel liquid cooling cabinet for high-density servers according to claim 3, characterized in that: A plurality of heat exchange fins (304) are distributed laterally in the middle of the heat dissipation plate (301), liquid cooling surrounding pipes (305) are distributed between the plurality of heat exchange fins (304), and the liquid cooling surrounding pipes (305) are interspersed and distributed between the plurality of heat exchange fins (304).

5. The multi-channel parallel liquid cooling cabinet for high-density servers according to claim 3, characterized in that: Two guide fans (303) are provided on one side of the heat dissipation plate (301) close to the server cabinet (1); one end of the two guide fans (303) close to the heat exchange plate (304) is provided with a motor (302); the output end of the motor (302) is transmission-connected to the guide fan (303).

6. The multi-channel parallel liquid cooling cabinet for high-density servers according to claim 3, characterized in that: The upper and lower ends of the liquid-cooling surrounding tube (305) are fixedly connected to connecting sleeves (308), and the upper and lower connecting sleeves (308) are respectively connected to a liquid outlet pipe (307) and a liquid inlet pipe (306). A circulation pipe (311) is provided at one end of the liquid outlet pipe (307) away from the connecting sleeve (308).

7. The multi-channel parallel liquid cooling cabinet for high-density servers according to claim 6, characterized in that: One end of the circulation pipe (311) is connected to a plurality of liquid outlet pipes (307), and the other end of the circulation pipe (311) is connected to a plurality of liquid outlet pipes (307). A liquid pump (309) is provided at the lower end of the circulation pipe (311). The liquid inlet end of the liquid pump (309) is connected to one end of the circulation pipe (311), and the liquid outlet end of the liquid pump (309) is connected to the other end of the circulation pipe (311). A refrigerator (310) is provided at the end of the circulation pipe (311) away from the liquid pump (309).

8. The multi-channel parallel liquid cooling cabinet for high-density servers according to claim 1, characterized in that: An alarm (10) is provided on the upper surface of the server cabinet (1), and the alarm (10) is electrically connected to the liquid level switch (404).

9. The multi-channel parallel liquid cooling cabinet for high-density servers according to claim 1, characterized in that: The front sides of the server cabinet (1) and the multi-channel liquid cooling cabinet (2) are respectively hinged with a cabinet door 1 (7) and a cabinet door 2 (8), and ventilation nets (9) are provided below the cabinet door 1 (7) and the cabinet door 2 (8).

10. The multi-channel parallel liquid cooling cabinet for high-density servers according to claim 1, characterized in that: A plurality of server supports (5) are distributed above and below the server cabinet (1), and each of the server supports (5) is fixedly connected to the server cabinet (1). A plurality of server wiring holes (6) are provided on the rear side of the server cabinet (1).

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