Data center liquid cooling CDU liquid supplementing system

Abstract

The utility model discloses a data center liquid cooling CDU liquid supplementing system which comprises a liquid supplementing water tank connected with a CDU liquid supplementing interface, a liquid supplementing pump is further arranged between the liquid supplementing water tank and the CDU liquid supplementing interface, and three-way valves are arranged at the water inlet end and the water outlet end of the liquid supplementing pump respectively. Wherein one three-way valve is respectively connected with the water outlet end of the liquid supplementing water tank and an external water source, and the other three-way valve is respectively connected with the water inlet end of the liquid supplementing water tank and the CDU liquid supplementing interface. According to the utility model, while the daily requirement of supplementing liquid to the CDU system by the conventional liquid supplementing water tank is met, various scene requirements of supplementing liquid to the cabinet outside liquid supplementing water tank, supplementing liquid to the cabinet outside CDU system and the like can be realized by utilizing the single liquid supplementing pump, the occupied area and the cost are saved, and the whole liquid supplementing system is more compact and more convenient to use. And liquid supplementation can be carried out circularly in a data center with increasing server density.

Description

Technical Field

[0001] This utility model belongs to the field of data center liquid-cooled CDU technology, and particularly relates to a data center liquid-cooled CDU replenishment system. Background Technology

[0002] Data center liquid-cooled CDU replenishment systems are typically integrated into movable cabinets equipped with wheels or casters for easy movement within large data centers. This facilitates replenishment of the liquid-cooled CDU system. However, current replenishment systems can only meet the daily needs of replenishing the CDU system from conventional replenishment tanks. For routine maintenance personnel, replenishing the replenishment tanks and adding large amounts of liquid to the CDU remains cumbersome, time-consuming, and labor-intensive. For example, refilling the replenishment tanks requires personnel to repeatedly fetch water and refill them, while large-scale replenishment requires reconnecting the external water source to the CDU replenishment interface. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a liquid-cooled CDU replenishment system for data centers. While meeting the daily needs of replenishing the CDU system from a conventional replenishment tank, it can also use a single replenishment pump to meet various scenario needs such as replenishing the replenishment tank from outside the cabinet and replenishing the CDU system from outside the cabinet, saving floor space and cost, and making the entire replenishment system more compact.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A liquid-cooled CDU replenishment system for a data center includes a replenishment tank connected to a CDU replenishment interface. A replenishment pump is also provided between the replenishment tank and the CDU replenishment interface. A three-way valve is provided at both the inlet and outlet ends of the replenishment pump. One of the three-way valves is connected to the outlet end of the replenishment tank and an external water source, respectively. The other three-way valve is connected to the inlet end of the replenishment tank and the CDU replenishment interface, respectively.

[0006] This implementation method utilizes a single replenishment pump for various replenishment maintenance tasks. One three-way valve connects the replenishment tank and the replenishment pump, while another three-way valve connects the replenishment pump and the CDU replenishment interface. This allows replenishment of the liquid-cooled CDU using the replenishment tank. When the liquid level in the replenishment tank is low, one three-way valve connects an external water source and the replenishment pump, while the other connects the replenishment pump and the replenishment tank. This allows external water to be directly pumped into the replenishment tank for replenishment, eliminating the need to open the replenishment tank or move the water source, saving time and effort. Furthermore, in scenarios requiring the addition of large amounts of liquid cooling media, such as CDU cleaning or initial startup, one three-way valve connects an external water source and the replenishment pump, while the other connects the replenishment pump and the CDU replenishment interface. This allows for direct replenishment of the liquid-cooled CDU system using an external water source. In short, a single replenishment pump can fulfill multiple replenishment needs, saving time and effort and making the replenishment system more compact, facilitating replenishment in data centers with increasingly high server density.

[0007] In one embodiment, the replenishment tank is equipped with a liquid level sensor and a visual liquid level gauge;

[0008] In this embodiment, a liquid level sensor installed in the replenishment tank can detect the water level in real time and issue an alarm when the liquid level is low. The visual liquid level gauge allows operators to actively observe the liquid level at any time.

[0009] In one embodiment, a drain ball valve is also provided between the outlet of the replenishment tank and the three-way valve.

[0010] In one embodiment, a check valve and a filter are sequentially installed on the pipeline between the three-way valve connected to the water inlet of the replenishment tank and the CDU replenishment interface.

[0011] In one embodiment, a first ball valve and a second ball valve are further provided on the pipeline between the three-way valve connected to the water inlet of the replenishment tank and the CDU replenishment interface. The first ball valve is connected to a pressure sensor, and the second ball valve is connected to a pressure gauge.

[0012] In one embodiment, an air filter is also provided inside the replenishment tank;

[0013] In this embodiment, the air filter installed inside the replenishment tank is used to regulate the pressure difference inside and outside the replenishment tank CO1 and to ensure air cleanliness.

[0014] In one embodiment, the replenishment pump is a self-priming pump.

[0015] In one embodiment, the three-way valve is an electrically operated three-way valve.

[0016] The beneficial effects of this utility model are as follows:

[0017] (1) While meeting the daily needs of replenishing the CDU system from the conventional replenishment tank, it can also use a single replenishment pump to meet various scenarios such as replenishing the replenishment tank from outside the cabinet and replenishing the CDU system from outside the cabinet, saving floor space and cost, and making the entire replenishment system more compact.

[0018] (2) The liquid level sensor is designed to work in conjunction with the three-way valves at both ends of the replenishment pump to automatically replenish the replenishment tank when the liquid level in the replenishment tank is low, or to replenish the CDU replenishment interface from an external water source. Attached Figure Description

[0019] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0020] in:

[0021] Figure 1 A schematic diagram of the system structure of this utility model is shown;

[0022] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0023] Figure label:

[0024] 1-Replenishment tank, 2-Replenishment pump, 3-Filter, 4-Check valve, 5-Air filter. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] This invention provides a liquid-cooled CDU replenishment system for data centers, such as... Figure 1 As shown, it includes a replenishment water tank 1 connected to the CDU replenishment interface. A replenishment pump 2 is also provided between the replenishment water tank 1 and the CDU replenishment interface. A three-way valve is provided at both the inlet and outlet ends of the replenishment pump 2. One of the three-way valves is connected to the outlet end of the replenishment water tank 1 and the external water source, respectively. The other three-way valve is connected to the inlet end of the replenishment water tank 1 and the CDU replenishment interface, respectively.

[0027] Furthermore, a liquid level sensor and a visual liquid level gauge are installed inside the replenishment tank 1;

[0028] It should be noted that, as Figure 1As shown, the replenishment pump 2 is equipped with three-way valves V401 and V402 at both ends. The replenishment pump 2 is a self-priming pump, and both three-way valves V401 and V402 are electric three-way valves. Various replenishment maintenance tasks can be performed using one replenishment pump 2 and two three-way valves. For example, when three-way valve V401 connects the replenishment tank 1 to the replenishment pump 2, and three-way valve V402 connects the replenishment pump 2 to the CDU replenishment interface, the replenishment tank 1 can be used to replenish the liquid-cooled CDU to meet daily replenishment needs. When the liquid level sensor in the replenishment tank 1 detects a low liquid level, an alarm is triggered. At this time, three-way valve V401 connects to the external water source and the replenishment pump 2, and three-way valve V402 connects to the replenishment pump 2... With the addition of a replenishment tank 1, external water can be directly pumped into the replenishment tank 1 for replenishment, eliminating the need to open the replenishment tank 1 or move the water source, saving time and effort. When facing scenarios requiring a large amount of liquid cooling medium, such as regular cleaning or initial startup of the liquid-cooled CDU, the three-way valve V401 connects the external water source and the replenishment pump 2, and the three-way valve V402 connects the replenishment pump 2 and the CDU replenishment interface, allowing the external water source to be used to replenish a large amount of liquid to the liquid-cooled CDU system. In other words, a single replenishment pump 2 can meet multiple replenishment needs, saving time and effort, and making the replenishment system more compact, resulting in a smaller overall replenishment device that is easy to use for replenishment in data centers with increasingly high server density.

[0029] In one embodiment, it also includes a control unit, which is electrically connected to the three-way valve V401, the three-way valve V402 and the liquid level sensor. The control unit has a logic controller and an input / output module. The logic controller is used for data processing and logical operations. Through the built-in liquid replenishment method, it automatically generates control commands and transmits them to the output module. The input / output module is used to collect system pressure and liquid level information of the replenishment tank 1, receive signals transmitted by the controller, output control commands, control the electric three-way valve and the replenishment pump 2 to operate, and realize the automatic liquid replenishment function.

[0030] Furthermore, such as Figure 1 As shown, a check valve 4 and a filter 3 are sequentially installed on the pipeline between the three-way valve V402 connected to the water inlet of the replenishment tank 1 and the CDU replenishment interface. A first ball valve V201 and a second ball valve V202 are also installed on the pipeline between the three-way valve V402 connected to the water inlet of the replenishment tank 1 and the CDU replenishment interface. The first ball valve V201 is connected to a pressure sensor PT01, and the second ball valve is connected to a pressure gauge PI01.

[0031] It should be noted that, as Figure 1As shown, before injecting the CDU, the pressure sensor PT01 and pressure gauge PI01 are used to monitor the injection pressure. If the CDU system issues a low pressure message, the three-way valve V401 is adjusted to connect A-AB, and the three-way valve V402 is adjusted to connect B-AB. The replenishment pump 2 acts as a power source to inject the cooling medium from the replenishment tank 1 into the CDU system. When the injection pressure reaches the CDU requirement value, the replenishment pump 2 stops. The liquid level sensor LT01 can identify the liquid level height. If the liquid level in the replenishment tank 1 is lower than the set value during injection, the replenishment pump 2 stops and issues a low liquid level alarm message, prompting the replenishment tank 1 to be filled. The visual liquid level gauge LI01 can also be used to monitor the liquid level height on site. The filter 3 set in the injection circuit can ensure the cleanliness of the cooling medium injected into the CDU system and prevent large particles of impurities from entering the CDU system. After the injection is completed, the check valve 4 set in the injection circuit can prevent the high-pressure medium in the CDU system from flowing back and causing the CDU system pressure to drop.

[0032] In one embodiment, an air filter 5 is also provided inside the replenishment tank 1;

[0033] It should be noted that, as Figure 1 As shown, the air filter 5 can adjust the pressure difference between the inside and outside of the replenishment water tank 1 and ensure air cleanliness;

[0034] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0035] While specific embodiments of the present invention have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A liquid-cooled CDU replenishment system for data centers, characterized in that, The device includes a replenishment tank connected to the CDU replenishment interface. A replenishment pump is also provided between the replenishment tank and the CDU replenishment interface. A three-way valve is provided at both the inlet and outlet ends of the replenishment pump. One of the three-way valves is connected to the outlet end of the replenishment tank and an external water source, respectively. The other three-way valve is connected to the inlet end of the replenishment tank and the CDU replenishment interface, respectively.

2. The liquid-cooled CDU replenishment system for data centers according to claim 1, characterized in that, The replenishment tank is equipped with a liquid level sensor and a visual liquid level gauge.

3. The liquid-cooled CDU replenishment system for data centers according to claim 1, characterized in that, A drain ball valve is also provided between the outlet of the replenishment tank and the three-way valve.

4. The liquid-cooled CDU replenishment system for data centers according to claim 1, characterized in that, A check valve and a filter are sequentially installed on the pipeline between the three-way valve and the CDU replenishment interface, which are connected to the water inlet of the replenishment tank.

5. A liquid-cooled CDU replenishment system for a data center according to claim 4, characterized in that, A first ball valve and a second ball valve are also installed on the pipeline between the three-way valve and the CDU replenishment interface connected to the water inlet of the replenishment tank. The first ball valve is connected to a pressure sensor, and the second ball valve is connected to a pressure gauge.

6. The liquid-cooled CDU replenishment system for data centers according to claim 1, characterized in that, The replenishment tank is also equipped with an air filter.

7. The liquid replenishment system for a data center liquid-cooled CDU according to claim 1, characterized in that, The replenishment pump is a self-priming pump.

8. A liquid-cooled CDU replenishment system for data centers according to claim 1, characterized in that, The three-way valve is an electric three-way valve.

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