Rack-mounted liquid cooling distribution device
By optimizing the structure and piping layout of the rack-mounted liquid cooling distribution unit, the problems of low space utilization and inconvenient drainage in the existing unit have been solved, achieving a compact equipment design and rapid modular installation, ensuring the stability of the system and the drainage effect.
Patent Information
- Application Number
- CN202422868474.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-11-25
AI Technical Summary
Existing rack-mounted liquid cooling distribution equipment has low internal space utilization, inconvenient drainage and is not compact enough, cannot be quickly modularized for installation, and unreasonable drainage location leads to incomplete drainage inside the system.
Design a compact rack-mounted liquid cooling distribution device with a reasonable pipeline layout. All supply and return liquid ports and exhaust ports are located at the rear of the housing and connected by a chuck. The exhaust port and liquid drain port are needle valves. Redundant water pumps and check valves are installed. Temperature and pressure sensors are installed inside the housing for monitoring to ensure stable system operation.
The equipment features a compact layout, facilitating modular installation and operation, improving space utilization, ensuring smooth drainage without leakage, and enhancing system stability and flexibility.
Smart Images
Figure CN223626171U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of CDU coolant distribution technology, and particularly relates to a rack-mounted coolant distribution device. Background Technology
[0002] In server cooling systems, integrated CDUs enable higher processing power density, meaning more servers can be accommodated in each data center rack. Direct integration of CDUs into facility water or facility-level cooling systems for direct rack-mount server cooling, or independent cooling designs, provides greater flexibility for liquid-cooled servers. Existing rack-mount liquid cooling distribution units have low internal space utilization and are not compact enough, preventing rapid modular installation in confined spaces. Furthermore, the unit's drainage is located inside the unit, and the drainage point is not at the lowest point of the entire system, potentially leading to incomplete drainage and inconvenient access. This invention provides a compact rack-mount liquid cooling distribution unit that facilitates drainage and can be modularly connected according to on-site usage requirements. Utility Model Content
[0003] The problem to be solved is to provide a rack-mounted liquid cooling distribution device that is compact in structure, easy to drain, and modularly connectable according to on-site usage requirements.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a rack-mounted liquid-cooled distribution device, comprising a housing, a plate heat exchanger disposed within the housing, one side of the plate heat exchanger being connected to a primary side return liquid pipeline and a primary side supply liquid pipeline, the primary side return liquid pipeline being connected to a primary side return liquid port, and the primary side supply liquid pipeline being connected to a primary side outlet liquid port; the other side of the plate heat exchanger being connected to a secondary side supply liquid pipeline and a secondary side return liquid pipeline, the secondary side supply liquid pipeline being connected to a secondary side supply liquid port; one end of the secondary side return liquid pipeline is connected to the secondary side return liquid port via a closed expansion tank, and the other end is connected to the plate heat exchanger via a water pump and a one-way valve; the primary side return liquid port, the primary side outlet liquid port, the secondary side supply liquid port, and the secondary side return liquid port are all located at the rear end of the housing, the rear end of the housing is provided with an exhaust port, the exhaust port is connected to the top of the closed expansion tank via an exhaust pipe, and the bottom of the closed expansion tank is provided with a drain pipe.
[0005] Preferably, a temperature sensor and a pressure sensor are installed on the primary side return line, and are connected to the primary side return port through an electric two-way regulating valve.
[0006] Preferably, the primary side liquid supply pipeline is connected to the plate heat exchanger via an electromagnetic flow meter, and a pressure sensor and a temperature sensor are provided between the electromagnetic flow meter and the primary side liquid outlet.
[0007] Preferably, a Y-type filter, an electromagnetic flow meter, a temperature sensor, and a pressure sensor are sequentially distributed on the secondary side liquid supply pipeline, with the Y-type filter located at one end connected to the plate heat exchanger.
[0008] Preferably, a temperature sensor and a pressure sensor are installed on the pipe connecting the closed expansion tank and the secondary side return port.
[0009] Preferably, there are two sets of water pumps and one-way valves, and the two sets of water pumps and one-way valves are redundantly configured, with the water pumps fixed on a fixed bracket.
[0010] Preferably, the top of the closed expansion tank is connected to a replenishment pipeline, which includes a water replenishment pump and a one-way valve. The water replenishment pump is connected to a replenishment port, which is located at the rear end of the tank.
[0011] Preferably, the rear end of the tank is also provided with an exhaust port, which is connected to the top of the closed expansion tank.
[0012] Compared with the prior art, this utility model provides a rack-mounted liquid cooling distribution device with the following advantages: The advantages of this utility model are: the secondary side return port, primary side return port, secondary side supply port, primary side outlet port, exhaust port, replenishment port, communication interface and power interface are all located at the top rear end of the housing. The primary side return pipe, primary side supply pipe, secondary side supply pipe and secondary side return pipe are reasonably laid out and compact in structure, which is convenient for modular installation and operation. The primary and secondary supply and return ports adopt the chuck type, which can quickly and effectively connect the pipes. The drain port and exhaust port adopt the needle valve type, which can effectively prevent leakage. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the appearance of the present utility model;
[0014] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0015] Figure 3 This is an axonometric view of the present invention;
[0016] Explanation of reference numerals in the attached diagram: 1. Housing; 11. Axial flow fan; 12. Secondary side return port; 13. Primary side outlet; 14. Secondary side supply port; 15. Primary side return port; 16. Exhaust port; 17. Replenishment port; 18. Communication interface; 19. Power interface; 2. Plate heat exchanger; 21. Interface 1; 22. Interface 2; 23. Interface 3; 24. Interface 4; 25. Heat exchanger support; 3. Primary side return pipeline; 31. Electric two-way regulating valve; 32. Temperature sensor 1; 33. Pressure sensor 1; 4. Primary side supply... 41. Liquid supply line; 42. First electromagnetic flow meter; 43. Pressure sensor 2; 44. Temperature sensor 2; 5. Secondary side liquid supply line; 51. Y-type filter; 52. Second electromagnetic flow meter; 53. Temperature sensor 3; 54. Pressure sensor 3; 6. Secondary side liquid return line; 61. Temperature sensor 4; 62. Pressure sensor 4; 63. Closed expansion tank; 64. Water pump; 65. Fixed bracket; 66. One-way valve 1; 7. Liquid replenishment line; 71. Water replenishment pump; 72. One-way valve 2; 8. Vent line; 9. Drain line. Detailed Implementation
[0017] The technical solutions of the present utility model will now be described with reference to the accompanying drawings in the embodiments of the present utility model:
[0018] This utility model provides a compact, modular, and quickly installable liquid-cooled distribution device. As shown in the figure, a rack-mounted liquid-cooled distribution device includes a housing 1. The rear end of the housing 1 has a primary side outlet 13, a primary side return port 15, a secondary side return port 12, and a secondary side supply port 14. These ports are connected to other equipment via chucks. The primary side outlet 13 and return port 15 are connected to cooling equipment, while the secondary side return port 12 and supply port 14 are connected to servers. The rear end of the housing 1 also has an exhaust port 16, a replenishment port 17, a communication interface 18, and a power interface 19. The exhaust port 16 is a needle valve located at the highest point of the device, and the replenishment port 17 is a pagoda connector. A plate heat exchanger 2 is installed inside the housing 1, and the plate heat exchanger 2 is fixed inside the housing 1 by a plate heat exchanger bracket 25. Plate heat exchanger 2 has interface 1 21 and interface 22 on one side; and interface 3 23 and interface 4 24 on the other side. The primary side return line 3 connects interface 1 21 to the primary side return port 15. Temperature sensor 1 32 and pressure sensor 1 33 are also installed on the primary side return line 3. These sensors measure the pressure and temperature of the liquid in the line and are connected to the primary side return port 15 via an electric two-way regulating valve 31. When the unit needs to operate, the electric two-way regulating valve 31 automatically opens to start the equipment. Then, the coolant in the cooling equipment flows through the primary side return port 15, the primary side return line 3, and interface 1 21 into the plate heat exchanger 2.
[0019] The primary side supply line 4 connects interface 22 to the primary side outlet 13. The primary side supply line 4 is connected to interface 22 of the plate heat exchanger 2 via a first electromagnetic flowmeter 41. A pressure sensor 42 and a temperature sensor 43 are installed between the first electromagnetic flowmeter 41 and the primary side outlet 13. The pressure sensor 42 and the temperature sensor 43 detect the temperature and pressure of the primary side return line. The coolant in the plate heat exchanger 2 enters the cooling equipment through the first electromagnetic flowmeter 41, the primary side supply line 4, and the primary side outlet 13. The plate heat exchanger 2 is connected to a secondary side liquid supply line 5 and a secondary side liquid return line 6 on one side of interface 3 23 and interface 4 24. The secondary side liquid supply line 5 connects interface 4 24 to the secondary side liquid supply port 14. A Y-type filter 51, a second electromagnetic flow meter 52, a temperature sensor 3 53, and a pressure sensor 3 54 are sequentially distributed on the secondary side liquid supply line 5. The Y-type filter 51 is located at the end connected to the plate heat exchanger 2 and connected to interface 4 24. The coolant in the plate heat exchanger 2 is filtered by the Y-type filter 51, and then passes through the second electromagnetic flow meter 52 and reaches the server through the secondary side liquid supply port 14. The secondary side liquid supply line 5 provides a cold source for the server. The rear end of the Y-type filter 51 is equipped with a temperature sensor 3 53 and a pressure sensor 3 54. The pressure sensor 3 54 is used to check the pressure value of the secondary side liquid supply line 5 and determine whether the Y-type filter 51 is blocked based on the pressure difference. The temperature sensor 3 53 is used to measure the temperature of the coolant in the secondary side liquid supply line 5 to ensure that it meets the requirements of the server.
[0020] One end of the secondary return liquid pipeline 6 is connected to the secondary return liquid port 12 via the closed expansion tank 63, and the other end is connected to the interface 23 of the plate heat exchanger 2 via the water pump 64 and the one-way valve 66. The vent 16 is connected to the top of the closed expansion tank 63 via the vent pipeline 8, which is located above the closed expansion tank 63. The vent 16 is also the highest point in the entire system, effectively removing excess gas from the system. The bottom of the closed expansion tank 63 is equipped with a drain pipeline 9, which is located at the lowest point of the closed expansion tank 63 and the lowest point in the entire system, effectively removing excess liquid from the system. The top of the closed expansion tank 63 is connected to a replenishment pipeline 7, which includes a replenishment pump 71 and a one-way valve 72. The replenishment pump 71 is connected to the replenishment port 17, which is located at the rear end of the tank body 1. The replenishment pipeline 7 replenishes the system with liquid in a timely manner. The liquid passes through the replenishment port 17, the replenishment pump 71, and then through the one-way valve 72 to reach the closed expansion tank 63. The pipeline connecting the closed expansion tank 63 to the secondary side return port 12 is equipped with a temperature sensor 61 and a pressure sensor 62. The server outlet discharges liquid into a closed expansion tank 63 via a secondary return port 12. Temperature sensor 4 (61) and pressure sensor 4 (62) are installed between the secondary return port 12 and the closed expansion tank 63 to measure the temperature and pressure of the coolant discharged from the server. The discharged coolant passes through the closed expansion tank 63, water pump 64, one-way valve 66, and interface 3 (23) before entering the plate heat exchanger 2. There is also a backup pipeline, which also includes water pump 64 and one-way valve 66. Therefore, there are two sets of water pumps 64 and one-way valves 66, which are redundantly configured. If one set fails, the other set is activated to avoid interruption. The two water pumps 64 are fixed to corresponding mounting brackets 65, which are fixed inside the enclosure 1. As shown in the figure, the connections of the structural piping are concentrated at one corner of the rear end of the enclosure 1, while the connections of the electrical equipment are located at the other corner of the rear end of the enclosure 1, which effectively distinguishes and facilitates module management. An AC axial flow fan 11 is installed on the side wall of the enclosure 1, which provides rapid heat dissipation for the device. A water immersion sensor is also installed at the bottom of the enclosure 1 to prevent water from entering the device.
[0021] During operation, the cooling equipment sends coolant from the primary side return port 15 through the primary side return pipe 3 into the plate heat exchanger 2. The plate heat exchanger 2 then returns the coolant back to the cooling equipment via the primary side supply pipe 4. The plate heat exchanger 2 delivers coolant that meets the server's requirements to the server via the secondary side supply pipe 5 and the secondary side supply port 14. The server then sends the used coolant back into the plate heat exchanger 2 via the secondary side return port 12, the closed expansion tank 63, the water pump 64, and the one-way valve 66. The replenishment pipe 7 replenishes coolant to the closed expansion tank 63, the vent pipe 8 vents gases from the system, and the drain pipe 9 is positioned at its lowest point for use during draining.
[0022] The above embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
Claims
1. A rack-mounted liquid-cooled distribution device, characterized in that: The system includes a housing (1), inside which is a plate heat exchanger (2). One side of the plate heat exchanger (2) is connected to a primary side return liquid pipeline (3) and a primary side supply liquid pipeline (4). The primary side return liquid pipeline (3) is connected to a primary side return liquid port (15), and the primary side supply liquid pipeline (4) is connected to a primary side outlet liquid port (13). The other side of the plate heat exchanger (2) is connected to a secondary side supply liquid pipeline (5) and a secondary side return liquid pipeline (6). The secondary side supply liquid pipeline (5) is connected to a secondary side supply liquid port (14). One end of the secondary side return liquid pipeline (6) is connected to... The closed expansion tank (63) is connected to the secondary side return port (12), and the other end is connected to the plate heat exchanger (2) through the water pump (64) and the one-way valve (66). The primary side return port (15), the primary side outlet port (13), the secondary side supply port (14) and the secondary side return port (12) are all located at the rear end of the tank body (1). The rear end of the tank body (1) is provided with an exhaust port (16). The exhaust port (16) is connected to the top of the closed expansion tank (63) through the exhaust pipe (8). The bottom of the closed expansion tank (63) is provided with a drain pipe (9).
2. The rack-mounted liquid-cooled distribution device as described in claim 1, characterized in that: Temperature sensor 1 (32) and pressure sensor 1 (33) are installed on the primary side return line (3), and are connected to the primary side return port (15) through an electric two-way regulating valve (31).
3. The rack-mounted liquid-cooled distribution device as described in claim 2, characterized in that: The primary side liquid supply pipeline (4) is connected to the plate heat exchanger (2) through the first electromagnetic flow meter (41). A pressure sensor (42) and a temperature sensor (43) are provided between the first electromagnetic flow meter (41) and the primary side liquid outlet (13).
4. The rack-mounted liquid-cooled distribution device as described in claim 3, characterized in that: The secondary side liquid supply pipeline (5) is sequentially equipped with a Y-type filter (51), a second electromagnetic flow meter (52), a third temperature sensor (53) and a third pressure sensor (54). The Y-type filter (51) is located at one end of the connecting plate heat exchanger (2).
5. The rack-mounted liquid-cooled distribution device as described in claim 4, characterized in that: Temperature sensor four (61) and pressure sensor four (62) are installed on the pipe connecting the closed expansion tank (63) and the secondary side return port (12).
6. The rack-mounted liquid-cooled distribution device as described in claim 5, characterized in that: There are two sets of water pump (64) and check valve (66), and the two sets of water pump (64) and check valve (66) are redundant. The water pump (64) is fixed on the fixed bracket (65).
7. The rack-mounted liquid-cooled distribution device as described in claim 1, characterized in that: The top of the closed expansion tank (63) is connected to a replenishment pipeline (7). The replenishment pipeline (7) includes a replenishment pump (71) and a one-way valve (72). The replenishment pump (71) is connected to a replenishment port (17), which is located at the rear end of the tank (1).
8. The rack-mounted liquid-cooled distribution device as described in claim 7, characterized in that: The rear end of the tank (1) is also provided with an exhaust port (16), which is connected to the top of the closed expansion tank (63).