Liquid cooling heat exchanger for high power cabinets

By designing a liquid-cooled heat exchanger for a high-power cabinet, and utilizing components such as water pumps, connectors, and liquid-distributing cooling pipes, the problems of easy cracking at the weld joint between the heat exchange tube and the tube sheet and leakage at the floating head flange seal were solved. This enabled rapid replacement of the heat exchange area and real-time temperature monitoring, and reduced coolant overflow.

CN224571672UActive Publication Date: 2026-07-28G&B TELECOM-OPTIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
G&B TELECOM-OPTIC CO LTD
Filing Date
2025-08-30
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

The weld joints between the heat exchange tubes and tube sheet in existing liquid-cooled heat exchangers are prone to cracking, and the floating head flange seals in floating head heat exchangers are prone to leakage.

Method used

A liquid-cooled heat exchanger for a high-power cabinet was designed, including components such as cabinet, legs, insulation frame, limit frame, sealing plate, water pump, connector and liquid distribution cooling pipe. Through the cooperation of these components, the heat exchange area can be quickly changed, and the temperature can be monitored in real time by a temperature meter. The liquid storage box and defoaming pipe reduce coolant overflow.

Benefits of technology

It effectively reduced cracking at the weld joints between heat exchange tubes and tube sheets, improved sealing, enabled rapid replacement of heat exchange areas and real-time temperature monitoring, and reduced coolant overflow.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224571672U_ABST
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Abstract

The utility model relates to liquid cooling heat exchanger especially relates to a liquid cooling heat exchanger of high power cabinet. The utility model provides a liquid cooling heat exchanger of high power cabinet, including cabinet, outrigger, heat insulating frame, isolation net frame, first limit frame and second limit frame. The outrigger is welded in the left and right sides of cabinet outer wall bottom, and the inner wall of cabinet is equipped with heat insulating frame, and the left and right sides of heat insulating frame middle part are all installed with isolation net frame, and the left and right sides of heat insulating frame inner wall front side are all welded with first limit frame, and the number of first limit frame is two, and the left and right sides of heat insulating frame inner wall back side are all welded with second limit frame, and the number of second limit frame is two. The utility model cooperates water pump, connector and liquid cooling pipe etc. parts, can change heat exchange area according to need fast, also reduced the condition that heat exchange pipe and pipe plate weld joint easily crack, and through temperature meter can real -time monitoring connector in cooling liquid temperature.
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Description

Technical Field

[0001] This utility model relates to liquid-cooled heat exchangers, and more particularly to a liquid-cooled heat exchanger for a high-power cabinet. Background Technology

[0002] Liquid-cooled heat exchangers are high-efficiency heat exchange devices, mainly used to transfer and dissipate the heat generated by high-power equipment into the environment through a liquid medium. However, the weld joints between the heat exchange tubes and tube sheets in existing liquid-cooled heat exchangers are prone to cracking, and the floating head flange seals of floating head heat exchangers may leak.

[0003] Therefore, there is a particular need for a high-power cabinet liquid-cooled heat exchanger to address the problems existing in the prior art. Utility Model Content

[0004] In order to overcome the shortcomings of existing liquid-cooled heat exchangers, such as the easy cracking of the weld joint between the heat exchange tube and the tube sheet, and the leakage of the floating head flange seal in floating head heat exchangers, the technical problem of this utility model is to provide a liquid-cooled heat exchanger for a high-power cabinet.

[0005] The technical implementation scheme of this utility model is as follows: A liquid-cooled heat exchanger for a high-power cabinet includes a cabinet body, support legs, a heat insulation frame, an isolation mesh frame, a first limiting frame, a second limiting frame, a fixed base, a swing rod, a sealing plate, a liquid storage box, a first slide, a first locking rod, a second slide, a second locking rod, a delivery pipe, a water pump, a connector, and a liquid distribution cooling pipe. Support legs are welded to the left and right sides of the bottom of the outer wall of the cabinet body. A heat insulation frame is provided on the inner wall of the cabinet body. Isolation mesh frames are installed on the left and right sides of the middle part of the heat insulation frame. Two first limiting frames are welded to the left and right sides of the front side of the inner wall of the heat insulation frame. Two second limiting frames are welded to the left and right sides of the rear side of the inner wall of the heat insulation frame. The cabinet has two first limit frames, each with a first slide connected to it by a first locking rod. There are at least four first locking rods. Each of the two second limit frames has a second slide connected to it by a second locking rod. Fixed seats are welded to the upper and lower parts of the right side of the cabinet exterior wall. Each fixed seat is equipped with a swing rod that rotates. A sealing plate is connected between the inner ends of the swing rods. A liquid storage box is connected between the inner sides of the second slides. The left and right parts of the front side of the liquid storage box are connected to the corresponding second slides. A delivery pipe is installed in the middle of the front side of the liquid storage box. A water pump is installed at the lower part of the delivery pipe by bolts. A connector is provided at the upper part of the delivery pipe. A liquid distribution cooling pipe is installed behind the connector.

[0006] Optionally, it also includes a temperature meter, which is threadedly mounted on the upper part of the connector.

[0007] Optionally, it also includes a liquid storage box, a defoaming tube, a cover plate, a connecting frame, and a return pipe. The left and right sides of the rear side of the outer wall of the liquid storage box are welded with connecting frames. There are two connecting frames. The liquid storage box is connected between the upper parts of the two connecting frames. The rear end of the liquid distribution cooling tube is connected to the middle of the liquid storage box. Defoaming tubes are embedded on both the left and right sides of the liquid storage box. A cover plate is installed on the upper part of the liquid storage box. A return pipe is embedded in the lower part of the liquid storage box.

[0008] Optionally, it also includes a ramp, with a ramp installed at the bottom of the liquid storage box.

[0009] Optionally, it also includes a heat-conducting plate, which is snapped onto the liquid-liquid cooling tube.

[0010] Optionally, it also includes a handle, with a handle located on the left side of the front side of the sealing plate.

[0011] The present invention has the following advantages: 1. The present invention, through the cooperation of components such as water pump, connector and liquid cooling pipe, can quickly replace the heat exchange area as needed, and at the same time reduces the situation that the weld joint between the heat exchange tube and the tube sheet is prone to cracking.

[0012] 2. This utility model can monitor the temperature of the coolant inside the connector in real time through a temperature meter.

[0013] 3. This utility model uses components such as a liquid storage frame and a defoaming tube to ensure that the coolant in the liquid storage frame flows back into the liquid storage box through a return pipe, which can effectively reduce the occurrence of coolant overflow. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the components of this utility model, including the support leg, heat insulation frame, and isolation mesh frame.

[0016] Figure 3 This is a three-dimensional structural diagram of the first limiting frame and the second limiting frame of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the cover plate and connecting frame of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the first slide, the first locking rod, and the second slide of this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of the water pump, connector, and liquid-dispensing cooling pipe of this utility model.

[0020] Figure 7 This is a three-dimensional structural diagram of the inclined plate and heat-conducting plate components of this utility model.

[0021] The meanings of the labels in the attached diagram are as follows: 1: Cabinet, 2: Support leg, 3: Insulation frame, 4: Isolation mesh frame, 5: First limiting frame, 6: Second limiting frame, 7: Fixed seat, 8: Swing rod, 9: Sealing plate, 10: Handle, 11: Liquid storage box, 12: First slide, 13: First locking rod, 14: Second slide, 15: Second locking rod, 16: Delivery pipe, 17: Water pump, 18: Connector, 19: Liquid distribution cooling pipe, 20: Temperature meter, 21: Liquid storage box, 22: Defoaming pipe, 23: Cover plate, 24: Connecting frame, 25: Inclined plate, 26: Return pipe, 27: Heat conduction plate. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0023] Example 1 A liquid-cooled heat exchanger for a high-power server rack, as described in a preferred embodiment of this utility model... Figures 1-7As shown, it includes a cabinet body 1, support legs 2, heat insulation frame 3, isolation mesh frame 4, first limiting frame 5, second limiting frame 6, fixed base 7, swing rod 8, sealing plate 9, handle 10, liquid storage box 11, first slide 12, first locking rod 13, second slide 14, second locking rod 15, delivery pipe 16, water pump 17, connector 18, liquid dispensing cooling pipe 19, temperature meter 20, liquid storage box 21, defoaming pipe 22, cover plate 23, connecting frame 24, and inclined plate 2. 5. Return pipe 26 and heat conduction plate 27; support legs 2 are welded to the outer wall of cabinet 1; heat insulation frame 3 is provided on the inner wall of cabinet 1; isolation mesh frame 4 is installed in the middle of heat insulation frame 3; first limiting frame 5 is welded to the inner wall of heat insulation frame 3; second limiting frame 6 is welded to the inner wall of heat insulation frame 3; first slide 12 is connected to each of the two first limiting frames 5 by first locking rod 13; second slide 14 is connected to each of the two second limiting frames 6 by second locking rod 15; the outer wall of cabinet 1 is welded with... There is a fixed base 7, on which a swing arm 8 is rotatably mounted. A sealing plate 9 is connected between the inner ends of the swing arms 8. A liquid storage box 11 is connected between the inner sides of the second slide 14. The liquid storage box 11 is connected to the corresponding second slide 14. A delivery pipe 16 is installed in the middle of the front side of the liquid storage box 11. A water pump 17 is installed at the lower part of the delivery pipe 16. A connector 18 is provided at the upper part of the delivery pipe 16. A liquid distribution cooling pipe 19 is installed on the connector 18. A thermometer is installed on the upper part of the connector 18. The measuring vessel 20 and the liquid storage box 11 are both welded with connecting brackets 24. A liquid storage frame 21 is connected between the upper parts of the two connecting brackets 24. The liquid distribution cooling pipe 19 is connected to the liquid storage frame 21 in the middle. Each liquid storage frame 21 is embedded with a defoaming pipe 22. A cover plate 23 is installed on the upper part of the liquid storage frame 21. A return pipe 26 is embedded on the liquid storage frame 21. An inclined plate 25 is installed on the liquid storage frame 21. A heat-conducting plate 27 is snapped onto the liquid distribution cooling pipe 19. A handle 10 is provided on the sealing plate 9.

[0024] When the liquid-cooled heat exchanger is needed, the operator can turn on the water pump 17. The water pump 17 will draw the coolant from the storage box 11 into the delivery pipe 16. The coolant in the delivery pipe 16 will flow into the distribution cooling pipe 19 through the connector 18. The flow of coolant in the distribution cooling pipe 19 will cool the heat insulation frame 3. The coolant in the distribution cooling pipe 19 will then flow back into the storage box 11, thus realizing the liquid-cooled heat exchange function of the high-power cabinet. The support legs 2 support the cabinet 1. When the operator does not need to perform liquid-cooled heat exchange on the high-power cabinet, the operator can turn off the water pump 17. At this time, the water pump 17 will stop drawing coolant from the storage box 11. When the coolant enters the delivery pipe 16 and then stops flowing in the distribution cooling pipe 19, the cooling and heat exchange work within the heat insulation frame 3 will cease. If the heat exchange area needs adjustment, the operator can rotate the sealing plate 9. This rotation will cause the swing rod 8 to rotate adaptively on the fixed seat 7. At this time, the operator can simultaneously pull out the first locking rod 13 and the second locking rod 15 forward. Then, the operator can move the liquid storage box 11 to a suitable position as needed. The delivery pipe 16, water pump 17, connector 18, and other components will move accordingly. The operator can then lock the first locking rod 13 back onto the first limiting frame 5, and subsequently lock the second locking rod 15 back onto the second slide 14. At this point, the liquid storage box... 11 will be fixed, and then the operator can reverse the sealing plate 9. The sealing plate 9 will cause the swing rod 8 to rotate and reset. When the sealing plate 9 reverses to contact the cabinet 1, the sealing plate 9 will seal the cabinet 1. In this way, the operator can quickly change the heat exchange area as needed, and at the same time, it reduces the possibility of cracking at the weld joint between the heat exchange tube and the tube sheet. The isolation mesh frame 4 can reduce the entry of dust. The temperature meter 20 can monitor the temperature of the coolant inside the connector 18 in real time. If the temperature inside the connector 18 is high, the operator can increase the pumping speed of the water pump 17 to quickly replace the coolant inside the connector 18. When the temperature meter 20 detects that the temperature inside the connector 18 is low, the operator can slow down the pumping speed. The internal temperature of 18 is relatively high, which can effectively shorten the heat exchange time. In order to reduce coolant overflow, the coolant in the liquid distribution cooling pipe 19 will flow into the liquid storage box 21. The debubbling pipe 22 can allow the gas in the upper part of the debubbling pipe 22 to circulate, thereby reducing the bubbles in the liquid storage box 21. The connecting bracket 24 plays a supporting role. The coolant in the liquid storage box 21 flows back to the liquid storage box 11 through the return pipe 26, which can effectively reduce the overflow of coolant. The inclined plate 25 will guide the coolant at the rear of the liquid storage box 21 to the top of the return pipe 26, thus shortening the coolant return time. The heat conduction plate 27 can assist the liquid distribution cooling pipe 19 in heat exchange. The operator can open and close the sealing plate 9 through the handle 10.

[0025] It should be understood that the above description is for illustrative purposes only and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A liquid-cooled heat exchanger for a high-power server rack, characterized in that: The cabinet includes a cabinet (1), legs (2), a heat insulation frame (3), an isolation mesh frame (4), a first limiting frame (5), a second limiting frame (6), a fixed seat (7), a swing rod (8), a sealing plate (9), a liquid storage box (11), a first slide (12), a first locking rod (13), a second slide (14), a second locking rod (15), a delivery pipe (16), a water pump (17), a connector (18), and a liquid distribution cooling pipe (19). Legs (2) are welded to the bottom left and right sides of the outer wall of the cabinet (1). A heat insulation frame (3) is provided on the inner wall of the cabinet (1). Isolation mesh frames (4) are installed on the left and right sides of the middle part of the heat insulation frame (3). A first limiting frame (5) is welded to the left and right sides of the front side of the inner wall of the heat insulation frame (3). There are two first limiting frames (5). A second limiting frame (6) is welded to the left and right sides of the rear side of the inner wall of the heat insulation frame (3). The number of second limiting frames (6) is... There are two first limit frames (5), and each first limit frame (5) is connected to a first slide (12) by a first clamp (13). The number of first clamps (13) is at least four. Each second limit frame (6) is connected to a second slide (14) by a second clamp (15). The upper and lower parts of the right side of the outer wall of the cabinet (1) are welded with fixed seats (7). Each fixed seat (7) is rotatably provided with a swing rod (8). The inner ends of the swing rods (8) are connected with a sealing plate (9). The inner sides of the second slides (14) are connected with a liquid storage box (11). The left and right parts of the front side of the liquid storage box (11) are connected to the corresponding second slides (14). The middle part of the front side of the liquid storage box (11) is equipped with a conveying pipe (16). The lower part of the conveying pipe (16) is equipped with a water pump (17) by bolts. The upper part of the conveying pipe (16) is equipped with a connector (18). The rear part of the connector (18) is equipped with a liquid distribution cooling pipe (19).

2. A liquid-cooled heat exchanger for a high-power cabinet according to claim 1, characterized in that: It also includes a temperature meter (20), which is threadedly mounted on the upper part of the connector (18).

3. A liquid-cooled heat exchanger for a high-power cabinet according to claim 2, characterized in that: It also includes a liquid storage box (21), a defoaming tube (22), a cover plate (23), a connecting frame (24), and a return pipe (26). The left and right sides of the outer wall of the liquid storage box (11) are welded with connecting frames (24). There are two connecting frames (24). The upper part of the two connecting frames (24) is connected to the liquid storage box (21). The rear end of the liquid distribution cooling pipe (19) is connected to the middle of the liquid storage box (21). The left and right sides of the liquid storage box (21) are embedded with defoaming tubes (22). The upper part of the liquid storage box (21) is equipped with a cover plate (23). The lower part of the liquid storage box (21) is embedded with a return pipe (26).

4. A liquid-cooled heat exchanger for a high-power cabinet according to claim 3, characterized in that: It also includes a ramp (25), and the bottom of the liquid storage frame (21) is equipped with a ramp (25).

5. A liquid-cooled heat exchanger for a high-power cabinet according to claim 4, characterized in that: It also includes a heat-conducting plate (27), and the heat-conducting plate (27) is snapped onto the liquid-liquid cooling pipe (19).

6. A liquid-cooled heat exchanger for a high-power cabinet according to claim 5, characterized in that: It also includes a handle (10), and the handle (10) is provided on the left side of the front side of the sealing plate (9).