Automatic pressure-stabilizing liquid cooling system

Abstract

The utility model discloses an automatic pressure-stabilizing liquid cooling system which comprises a cold source unit, a liquid supplementing unit, a circulating unit and cooled equipment, the cold source unit and the liquid supplementing unit are connected with cooled equipment through the circulating unit; the cold source unit is configured to complete circulating refrigeration of a cooling medium in the automatic pressure-stabilizing liquid cooling system; the circulating unit comprises connecting pipelines among the units, a circulating pump P01 and a first pressure sensor PT01 which are arranged at the upstream end of the cooled equipment, and a second pressure sensor PT02 and a flow meter FIT01 which are arranged at the downstream end of the cooled equipment; and the liquid supplementing unit is configured to inject a cooling medium into the upstream pipeline of the cooled equipment in the circulating unit when the measured value of the first pressure sensor PT01 is lower than a first threshold value, and stop injecting the cooling medium into the upstream pipeline of the cooled equipment when the measured value of the first pressure sensor PT01 is greater than a second threshold value. Therefore, the technical problem of pressure fluctuation of the liquid cooling system in the prior art is solved.

Description

Technical Field

[0001] This utility model belongs to the field of data center liquid cooling technology, and in particular relates to an automatic pressure-stabilized liquid cooling system. Background Technology

[0002] With the rapid development of AI technology, high-performance data centers have become an indispensable infrastructure. High-performance data centers generate more heat during operation, and traditional air-cooling systems can no longer meet their cooling needs. Liquid cooling systems, with their higher heat exchange efficiency, are now being used instead.

[0003] To ensure the normal operation of a data center, stable pressure control of the liquid cooling system is essential. If the system pressure is too low during operation, it can reduce heat exchange efficiency, cause the system temperature to rise, leading to server throttling or even hardware damage. Conversely, if the system pressure is too high, it can cause seal failure in components such as connectors and cold plates, resulting in coolant leakage and potentially causing short circuits or damage to the servers.

[0004] Therefore, how to keep the system operating pressure relatively stable, avoid the impact and damage to the server caused by excessively low or high pressure, thereby improving the overall lifespan of the system and reducing operation and maintenance costs, is an urgent problem to be solved. Utility Model Content

[0005] The purpose of this utility model is to overcome the problems of the prior art by disclosing an automatic pressure-stabilizing liquid cooling system. Through the structural design of this automatic pressure-stabilizing liquid cooling system, the technical problem of pressure fluctuation in the liquid cooling system in the prior art is solved.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] An automatic pressure-stabilizing liquid cooling system includes: a cold source unit, a liquid replenishment unit, a circulation unit, and the equipment being cooled;

[0008] The cold source unit and the liquid replenishment unit are connected to the equipment being cooled via a circulation unit, and the cold source unit and the liquid replenishment unit are arranged in parallel with each other;

[0009] The cold source unit is configured to complete the circulating cooling of the cooling medium in the automatic pressure-stabilized liquid cooling system;

[0010] The circulation unit includes connecting pipelines between units, a circulation pump P01 located at the upstream end of the cooled equipment, a first pressure sensor PT01, and a second pressure sensor PT02 and a flow meter FIT01 located at the downstream end of the cooled equipment.

[0011] The replenishment unit is configured to inject cooling medium into the upstream pipeline of the cooled equipment in the circulation unit when the measured value of the first pressure sensor PT01 is lower than a first threshold, and to stop injecting cooling medium into the upstream pipeline of the cooled equipment when the measured value of the first pressure sensor PT01 is greater than a second threshold.

[0012] According to a preferred embodiment, the automatic pressure-stabilizing liquid cooling system further includes: a draining unit.

[0013] The drainage unit is located downstream of the second pressure sensor PT02 and the flow meter FIT01.

[0014] The drainage unit is configured to discharge the cooling medium in the downstream pipeline of the cooled equipment in the circulation unit when the pressure value collected by the second pressure sensor PT02 is greater than the third threshold, and to stop the discharge when the pressure value collected by the second pressure sensor PT02 is less than the fourth threshold.

[0015] According to a preferred embodiment, the outlet end of the draining unit is connected to the replenishing unit, and is used to drain the cooling medium discharged from the circulation unit into the replenishing unit for storage and later use.

[0016] According to a preferred embodiment, the drainage unit includes a drainage pipeline and two redundant valve bodies arranged in parallel.

[0017] According to a preferred embodiment, the replenishment unit includes: a replenishment tank for storing cooling medium and receiving medium discharged by the draining unit.

[0018] According to a preferred embodiment, the cold source unit consists of a plurality of active or passive cooling devices.

[0019] According to a preferred embodiment, the circulation unit further includes: a first temperature sensor TT02 and a second temperature sensor TT03, wherein the first temperature sensor TT02 is disposed upstream of the cooled equipment and the second temperature sensor TT03 is disposed downstream of the cooled equipment, for monitoring the temperature inside the pipeline.

[0020] The aforementioned main solution of this utility model and its various further alternative solutions can be freely combined to form multiple solutions, all of which are solutions that can be adopted by this utility model and for which protection is sought. Those skilled in the art, after understanding the solution of this utility model, will realize, based on existing technology and common knowledge, that there are many combinations, all of which are technical solutions to be protected by this utility model; therefore, they are not exhaustively listed here.

[0021] The beneficial effects of this utility model are:

[0022] Through the structural design of the automatic pressure-stabilizing liquid cooling system of this application, it is possible to automatically identify whether the system pipeline needs to be pressurized or depressurized according to the real-time operating pressure of the system. The automatic pressure stabilization function of the system is realized through the liquid replenishment unit and the liquid draining unit, so as to ensure that the system operating pressure remains relatively stable, avoid the impact and damage to the server caused by excessively low or high pressure, thereby improving the overall service life of the system and reducing the operation and maintenance costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the principle structure of the automatic pressure-stabilizing liquid cooling system of this utility model. Detailed Implementation

[0024] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. 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. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Furthermore, it should be noted that unless otherwise specified, the specific structures, connections, positions, power sources, etc. involved in this utility model are all things that a person skilled in the art can know without creative effort based on the prior art.

[0030] Example 1

[0031] refer to Figure 1 As shown in the figure, an automatic pressure-stabilized liquid cooling system is illustrated. The automatic pressure-stabilized liquid cooling system includes: a cold source unit, a liquid replenishment unit, a liquid draining unit, a circulation unit, and the device being cooled. The cold source unit is used to realize the circulating cooling mechanism within the system pipeline. The liquid replenishment unit is used to replenish liquid to the medium in the system pipeline when the pressure is too low. The liquid draining unit is used to drain the medium from the pipeline when the pressure is too high. The circulation unit is used to realize the circulating flow of the cooling medium within the system and to complete the corresponding medium temperature and pressure monitoring. The device being cooled is the data center mentioned in the background section.

[0032] Preferably, the cold source unit and the liquid replenishment unit are connected to the cooled equipment via a circulation unit, and the cold source unit and the liquid replenishment unit are arranged in parallel.

[0033] Furthermore, the cold source unit is used to provide a cold source for the system, including but not limited to active and passive cooling equipment such as cooling towers and liquid chillers.

[0034] Furthermore, the replenishment unit is used to execute the replenishment action output by the controller.

[0035] In one embodiment, the replenishment unit may include a replenishment pump, a replenishment tank, a level transmitter, and a solenoid valve. The replenishment pump provides power for replenishing the system with water. The replenishment tank provides pre-storage space for the replenishment unit's medium. The level transmitter, installed inside the water tank, is used to detect the liquid level in the replenishment tank. The solenoid valve, installed on the outlet pipeline of the replenishment pump, is used to control the replenishment pressure.

[0036] Preferably, the circulation unit includes connecting pipelines between units, a circulation pump P01 located upstream of the cooled equipment, a first pressure sensor PT01, a first temperature sensor TT02, and a second temperature sensor TT03, a second pressure sensor PT02, and a flow meter FIT01 located downstream of the cooled equipment.

[0037] The first pressure sensor PT01 and the second pressure sensor PT02 are used to feed back the system operating pressure parameters. They are installed at the supply and return ports of the cooled equipment, and ball valves are installed between the pressure transmitters and the system loop. The first temperature sensor TT02 and the second temperature sensor TT03 are used to feed back the system operating temperature parameters. They are installed at the supply and return ports of the cooled equipment.

[0038] Based on the connecting pipeline of the circulation unit, the liquid outlet of the cold source unit is connected to the liquid inlet of the cooled equipment, and the liquid outlet of the cooled equipment is connected to the liquid inlet of the cold source unit. Furthermore, the upstream pipeline of the cooled equipment is also connected to the liquid outlet of the replenishment unit. The downstream pipeline of the cooled equipment is also connected to the drainage unit.

[0039] Furthermore, the replenishment unit is configured to inject cooling medium into the upstream pipeline of the cooled equipment in the circulation unit when the measured value of the first pressure sensor PT01 is lower than a first threshold, and to stop injecting cooling medium into the upstream pipeline of the cooled equipment when the measured value of the first pressure sensor PT01 is greater than a second threshold.

[0040] Preferably, the drainage unit is located downstream of the second pressure sensor PT02 and the flow meter FIT01, and the drainage unit is configured to discharge the cooling medium in the downstream pipeline of the cooled equipment in the circulation unit when the pressure value collected by the second pressure sensor PT02 is greater than a third threshold, and to stop the discharge when the pressure value collected by the second pressure sensor PT02 is less than a fourth threshold.

[0041] Furthermore, the outlet end of the drainage unit is connected to the replenishment unit, which is used to drain the cooling medium discharged from the circulation unit into the replenishment unit for storage and later use.

[0042] Furthermore, the drainage unit includes a drainage pipeline and two redundant valve bodies arranged in parallel. It includes a solenoid valve and a safety valve. The solenoid valve is installed on the system pipeline; the safety valve is also installed on the system pipeline for redundant pressure relief in case of solenoid valve failure. The outlets of the solenoid valve and the safety valve are connected to the upper end of the replenishment tank via pipelines.

[0043] Thus, through the structural design of the automatic pressure-stabilizing liquid cooling system of this application, it is possible to automatically identify whether the system pipeline needs to be pressurized or depressurized according to the real-time operating pressure of the system. The automatic pressure stabilization function of the system is realized through the liquid replenishment unit and the liquid draining unit, so as to ensure that the system operating pressure remains relatively stable and avoid the impact and damage to the server caused by excessively low or high pressure, thereby improving the overall service life of the system and reducing the operation and maintenance costs.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatically regulated liquid cooling system, characterized in that, The automatic constant-pressure liquid cooling system comprises a cold source unit, a liquid supplement unit, a circulation unit and a cooled device. The cold source unit and the liquid supplement unit are connected to the cooled device through the circulation unit, and the cold source unit and the liquid supplement unit are arranged in parallel with each other. The cold source unit is configured to complete the circulation refrigeration of the cooling medium in the automatic constant-pressure liquid cooling system. The circulation unit comprises connecting pipelines between units, a circulation pump P01 arranged at the upstream end of the cooled device, a first pressure sensor PT01, a second pressure sensor PT02 and a flow meter FIT01 arranged at the downstream end of the cooled device. The liquid supplement unit is configured to inject the cooling medium into the pipeline upstream of the cooled device in the circulation unit when the measured value of the first pressure sensor PT01 is lower than a first threshold value, and to stop injecting the cooling medium into the pipeline upstream of the cooled device when the measured value of the first pressure sensor PT01 is greater than a second threshold value.

2. The automatic liquid cooled system of claim 1, wherein, The automatic constant-pressure liquid cooling system further comprises a liquid discharge unit, The liquid discharge unit is arranged at the downstream end of the second pressure sensor PT02 and the flow meter FIT01, The liquid discharge unit is configured to discharge the cooling medium in the pipeline downstream of the cooled device in the circulation unit when the pressure value collected by the second pressure sensor PT02 is greater than a third threshold value, and to stop discharging when the pressure value collected by the second pressure sensor PT02 is less than a fourth threshold value.

3. The automatic liquid-stabilized cooling system of claim 2, wherein, The outlet end of the liquid discharge unit is connected to the liquid supplement unit, for discharging the cooling medium discharged from the circulation unit into the liquid supplement unit for storage.

4. The automatic liquid cooled system of claim 2, wherein, The liquid discharge unit comprises a liquid discharge pipeline and two valve bodies arranged in parallel and redundant to each other.

5. The automatic liquid-stabilized cooling system of claim 3, wherein, The liquid supplement unit comprises a liquid supplement tank for storing the cooling medium and receiving the medium discharged from the liquid discharge unit.

6. The automated liquid stabilized cooling system of claim 1, wherein, The cold source unit is composed of several active or passive cooling devices.

7. The automatic liquid cooled system of claim 1, wherein, The circulation unit further comprises a first temperature sensor TT02 arranged at the upstream end of the cooled device and a second temperature sensor TT03 arranged at the downstream end of the cooled device, for realizing temperature monitoring in the pipeline.

Images