CN-116734519-B - Liquid injection system and method for liquid cooling system, and nonvolatile storage medium

Abstract

The application discloses a liquid injection device, a liquid injection system, a liquid injection method and a nonvolatile storage medium of a liquid cooling system. The device comprises a first fluid machine, a second fluid machine, a first liquid storage device and a second liquid storage device, wherein the first fluid machine is connected with liquid suction ports of liquid injection devices of the first liquid storage device and a liquid cooling system and is used for positive pressure airtight test, the second fluid machine is connected with the first liquid storage device and the liquid suction ports and is used for negative pressure airtight test, the second liquid storage device is respectively connected with liquid inlet ports of liquid injection devices of the liquid cooling system and liquid outlet ports of the liquid injection devices of the liquid cooling system and is used for liquid injection operation, the first fluid machine is also used for liquid discharge operation, and the second liquid storage device is also used for liquid suction operation and self-circulation cleaning of the second liquid storage device. The application solves the technical problem of low liquid injection efficiency caused by the incapability of integrating air tightness test, liquid injection, liquid discharge, liquid suction and cleaning.

Inventors

• YANG GUANGFENG
• TIAN QICHAO
• WU HAIFENG
• YU XUAN
• ZHOU MENG

Assignees

• 阳光储能技术有限公司

Dates

Publication Date

20260508

Application Date

20230609

Claims (17)

1. 1. A liquid injection system of a liquid cooling system is characterized by comprising a liquid supply device, a liquid cooling system and a liquid injection device, wherein the liquid injection device comprises a first fluid machine, a second fluid machine, a first liquid storage device and a second liquid storage device, The liquid injection device is respectively connected with the liquid supply device and the liquid cooling system, and is used for obtaining liquid in the liquid supply device, treating the liquid in the liquid supply device and conveying the treated liquid to the liquid cooling system; the liquid supply device is used for supplying liquid to the liquid injection device; The liquid cooling system is used for receiving the treated liquid conveyed by the liquid injection device; The first fluid machine is connected with liquid suction ports of the first liquid storage device and the liquid injection device and is used for conducting positive pressure airtight test, wherein a first sub-passage is used for connecting the first fluid machine with the first liquid storage device and comprises a first filter and a dry filter, the first filter is used for filtering suspension liquid with pressure difference within a first target range, the dry filter is used for drying and filtering gas, and the first fluid machine is an air pump; The second fluid machine is connected with the first liquid storage device and the liquid suction port and is used for performing negative pressure airtight test, and the second fluid machine is a vacuum pump; The second liquid storage device is respectively connected with the liquid inlet of the liquid injection device and the liquid outlet of the liquid injection device and is used for performing liquid injection operation, wherein the liquid injection device receives liquid provided by the liquid supply device under the condition that the negative pressure airtight test is passed; The first fluid machine is connected with the liquid inlet through the first liquid storage device and the second liquid storage device and is also used for performing liquid discharge operation; The second liquid storage device is also connected with the liquid suction port and the liquid outlet respectively and is used for performing liquid suction operation, wherein after the vacuum pump vacuumizes the passage, the passage between the first liquid storage device and the second liquid storage device is closed, and residual liquid in the passage between the liquid injection device and the liquid cooling system is recovered to the second liquid storage device by utilizing the pressure difference between the liquid injection device and the liquid cooling system; and replacing the cooling liquid in the liquid supply device with cleaning water so as to realize self-circulation cleaning of the second liquid storage device.
2. 2. The liquid injection system of claim 1, comprising: the first fluid machine is connected with the liquid suction port through a first passage by the first liquid storage device; the second fluid machine is connected with the liquid suction port through the first liquid storage device by a second passage; The liquid inlet is connected with the liquid outlet through a third passage via the second liquid storage device; The first fluid machine is also connected with the liquid inlet through a fourth passage via the first liquid storage device and the second liquid storage device; The liquid suction port is connected with the liquid outlet through a fifth passage via the second liquid storage device; The liquid inlet is connected with the second liquid storage device through a sixth passage.
3. 3. The liquid injection system of claim 2, wherein the first passage comprises the first sub-passage and a second sub-passage, the second passage comprises a third sub-passage, the second sub-passage and a fourth sub-passage, the third passage comprises a fifth sub-passage, a sixth sub-passage and a seventh sub-passage, the fourth passage comprises the sixth sub-passage, the fourth sub-passage, the first sub-passage and the third sub-passage, the fifth passage comprises the seventh sub-passage and an eighth sub-passage, the sixth passage comprises the fifth sub-passage and the sixth sub-passage, wherein, The second sub-passage is used for connecting the first liquid storage device with the liquid pumping port; The third sub-passage is used for connecting the second fluid machine with the first liquid storage device; The fourth sub-passage is used for connecting the first liquid storage device and the second liquid storage device; the fifth sub-passage is used for connecting the liquid inlet and the first liquid storage device, wherein the fifth sub-passage comprises a tenth electromagnetic valve; The sixth sub-passage is used for connecting the second liquid storage device with the tenth electromagnetic valve; the seventh sub-passage is used for connecting the second liquid storage device with the liquid outlet; the eighth sub-passage is used for connecting the first liquid storage device with the liquid pumping port.
4. 4. The liquid filling system of claim 3, wherein the first sub-passage further comprises a pressure reducing valve and a first electromagnetic valve, wherein, The first fluid machine is connected with the pressure reducing valve, the first electromagnetic valve, the first filter and the dry filter, wherein the first fluid machine is used for compressing gas, the pressure reducing valve is used for reducing the pressure in the first sub-passage, and the first electromagnetic valve is used for opening or closing the first sub-passage.
5. 5. The liquid filling system of claim 4, wherein the third sub-passage comprises a first solenoid valve, a first filter, and a dry filter, wherein, The second fluid machine is connected to the first solenoid valve, the first filter and the dry filter, wherein the second fluid machine is configured to create a low pressure or vacuum environment.
6. 6. The liquid filling system of the liquid cooling system according to claim 5, wherein the second sub-passage comprises a second electromagnetic valve, a third electromagnetic valve, a second pressure sensor and a second filter, wherein, The first liquid storage device is connected with the second electromagnetic valve, the third electromagnetic valve, the second pressure sensor and the second filter, wherein the first liquid storage device is used for storing liquid, the second electromagnetic valve and the third electromagnetic valve are used for opening or closing the second sub-passage, the second pressure sensor is used for measuring the pressure of fluid in the second sub-passage, and the second filter is used for filtering suspension liquid with the pressure difference in a second target range.
7. 7. The liquid filling system of claim 6, wherein the fourth sub-passage comprises the second solenoid valve and a fourth solenoid valve, wherein, The first liquid storage device is connected with the second electromagnetic valve, the fourth electromagnetic valve and the second liquid storage device, wherein the second liquid storage device is used for storing liquid, and the second electromagnetic valve and the fourth electromagnetic valve are used for opening or closing the fourth sub-passage.
8. 8. The liquid filling system of claim 3, wherein the fifth sub-passage further comprises a third fluid machine and a sixth solenoid valve, wherein, The liquid inlet is connected with the tenth electromagnetic valve, the third fluid machine and the sixth electromagnetic valve, wherein the third fluid machine is used for conveying liquid, and the tenth electromagnetic valve and the sixth electromagnetic valve are used for opening or closing the fifth sub-passage.
9. 9. The liquid filling system of claim 3, wherein the sixth sub-passage comprises an eighth electromagnetic valve, wherein, The tenth electromagnetic valve is connected with the eighth electromagnetic valve and the second liquid storage device, wherein the eighth electromagnetic valve is used for opening or closing the sixth sub-passage.
10. 10. The liquid filling system of the liquid cooling system according to claim 3, wherein the seventh sub-passage comprises a seventh electromagnetic valve, a fourth pressure sensor and a third filter, wherein, The second liquid storage device is connected with the seventh electromagnetic valve, the fourth pressure sensor, the third filter and the liquid outlet, wherein the seventh electromagnetic valve is used for opening or closing the seventh sub-passage, the fourth pressure sensor is used for measuring the pressure of fluid in the seventh sub-passage, and the third filter is used for filtering suspension liquid with the pressure difference in a third target range.
11. 11. The liquid filling system of claim 7, wherein the eighth sub-path comprises the fourth solenoid valve, the third solenoid valve, the second pressure sensor, and the second filter, wherein, The second liquid storage device is connected with the fourth electromagnetic valve, the third electromagnetic valve, the second pressure sensor, the second filter and the liquid suction port, wherein the fourth electromagnetic valve and the third electromagnetic valve are used for opening or closing the eighth sub-passage, the second pressure sensor is used for measuring the pressure of fluid in the eighth sub-passage, and the second filter is used for filtering suspension liquid with the pressure difference in a fourth target range.
12. 12. The liquid filling system of claim 3, wherein the first liquid storage device is further connected to a first liquid level gauge, a ninth electromagnetic valve, a fifth electromagnetic valve and a first pressure sensor, wherein, The first liquid level meter is used for measuring the liquid level of the liquid in the first liquid storage device; the ninth electromagnetic valve is connected with the first pressure relief opening of the first liquid storage device and is used for opening or closing the first pressure relief opening; The fifth electromagnetic valve is connected with the liquid discharge port of the first liquid storage device and is used for opening or closing the liquid discharge port; And the first pressure sensor is used for measuring the pressure of the liquid in the first liquid storage device.
13. 13. The liquid filling system of claim 3, wherein the second liquid storage device is further connected to a second liquid level meter, an eleventh electromagnetic valve and a third pressure sensor, wherein, The second liquid level meter is used for measuring the liquid level of the liquid in the second liquid storage device; the eleventh electromagnetic valve is connected with the second pressure relief port of the second liquid storage device and is used for opening or closing the second pressure relief port; And the third pressure sensor is used for measuring the pressure of the liquid in the second liquid storage device.
14. 14. The liquid injection system of claim 3, wherein the liquid injection device further comprises a control unit and a man-machine interaction device, The man-machine interaction device is connected with the control unit and used for setting parameters corresponding to the positive pressure airtight test, the negative pressure airtight test, the liquid injection operation, the liquid discharge operation, the liquid pumping operation and the self-circulation cleaning, wherein the parameters comprise at least one of test pressure, test flow rate, test time, test pressure stabilizing time and pressure releasing time.
15. 15. A method for injecting liquid into a liquid cooling system, wherein the method is applied to the liquid injection system of the liquid cooling system according to any one of claims 1 to 14, and comprises: Sequentially performing positive pressure airtight test and negative pressure airtight test on the liquid injection device; After the negative pressure airtight test is passed, receiving liquid provided by a liquid supply device, and conveying the liquid provided by the liquid supply device to a liquid cooling system; and after the liquid provided by the liquid supply device is conveyed to a liquid cooling system, discharging target liquid in the liquid injection device, wherein the target liquid comprises at least one of residual liquid and liquid with impurities.
16. 16. The method of filling a liquid cooling system according to claim 15, wherein the liquid supplied from the liquid supply device is supplied to the liquid cooling system, comprising: under the condition that the pressure in the liquid injection device is smaller than a preset pressure value, acquiring liquid from the liquid supply device by utilizing the pressure difference between the liquid injection device and the liquid supply device until the liquid in the second liquid storage device is a first preset volume, wherein the preset pressure value is smaller than the pressure of the liquid in the liquid supply device; Under the condition that the liquid in the second liquid storage device is of a first preset volume, a third fluid machine is utilized to obtain the liquid from the liquid supply device until the liquid in the second liquid storage device is of a second preset volume, the liquid in the second preset volume is conveyed to a liquid cooling system, the liquid inlet is connected with the first liquid storage device through a fifth sub-passage, the fifth sub-passage comprises a third fluid machine, a sixth electromagnetic valve and a tenth electromagnetic valve, the liquid inlet is connected with the tenth electromagnetic valve, the third fluid machine and the sixth electromagnetic valve, the third fluid machine is used for conveying the liquid, and the tenth electromagnetic valve and the sixth electromagnetic valve are used for opening or closing the fifth sub-passage.
17. 17. A non-volatile storage medium, characterized in that the non-volatile storage medium comprises a stored program, wherein the program, when run, controls a device in which the non-volatile storage medium is located to execute the liquid injection method of the liquid cooling system according to any one of claims 15 to 16.

Description

Liquid injection system and method for liquid cooling system, and nonvolatile storage medium Technical Field The application relates to the technical field of liquid injection of liquid cooling systems, in particular to a liquid injection device, a liquid injection system, a liquid injection method and a nonvolatile storage medium of a liquid cooling system. Background In recent years, the refrigeration system is gradually transformed from an air cooling system to a liquid cooling system, the development of the liquid cooling system is rapid, and the liquid cooling system gradually replaces an air cooling product to become the main stream of the market. After the product integration, the liquid cooling system needs to carry out leakage test and liquid injection test of the factory liquid cooling pipeline, so that the risk of liquid leakage of the pipeline is eliminated, and the tightness and safety of the pipeline of the liquid cooling system are ensured. Therefore, it is necessary to perform leak test and liquid injection on the liquid-cooled piping system. However, various problems often occur in the process of filling the liquid cooling system, for example, different ethylene glycol and propylene glycol are used as the cooling liquid of the energy storage system, the difficulty of filling and switching is high due to different brands and additives, a great amount of time is required for cleaning, liquid changing and the like of the liquid filling device, liquid discharging modes are various, liquid suction and liquid discharging, natural pressure relief and liquid discharging and the like are involved, the liquid discharging time is long, and the problems such as incomplete liquid discharging and the like are also accompanied. In view of the above problems, no effective solution has been proposed at present. Disclosure of Invention The embodiment of the application provides a liquid injection device, a liquid injection system, a liquid injection method and a nonvolatile storage medium of a liquid cooling system, which at least solve the technical problem of low liquid injection efficiency caused by incapability of integrating air tightness test, liquid injection, liquid discharge, liquid pumping and cleaning. According to one aspect of the embodiment of the application, a liquid injection device of a liquid cooling system is provided, which comprises a first fluid machine, a second fluid machine, a first liquid storage device and a second liquid storage device, wherein the first fluid machine is connected with a liquid suction port of the liquid injection device of the liquid cooling system and used for conducting positive pressure airtight test, the second fluid machine is connected with the first liquid storage device and the liquid suction port and used for conducting negative pressure airtight test, the second liquid storage device is respectively connected with a liquid inlet of the liquid injection device of the liquid cooling system and a liquid outlet of the liquid injection device of the liquid cooling system and used for conducting liquid injection operation, the first fluid machine is connected with the liquid inlet through the first liquid storage device and the second liquid storage device and used for conducting liquid discharge operation, and the second liquid storage device is also respectively connected with the liquid suction port and the liquid outlet and used for conducting liquid suction operation and is also used for conducting self-circulation cleaning on the second liquid storage device. Optionally, the first fluid machine is connected with the liquid suction port through a first liquid storage device by a first passage, the second fluid machine is connected with the liquid suction port through a second passage by the first liquid storage device, the liquid inlet is connected with the liquid outlet through a second liquid storage device by a third passage, the first fluid machine is also connected with the liquid inlet through a fourth passage by the first liquid storage device and the second liquid storage device, the liquid suction port is connected with the liquid outlet through a fifth passage by the second liquid storage device, and the second liquid storage device is connected with the second liquid storage device through a sixth passage by the liquid inlet. Optionally, the first passage comprises a first sub passage and a second sub passage, the second passage comprises a third sub passage, a second sub passage and a fourth sub passage, the third passage comprises a fifth sub passage, a sixth sub passage and a seventh sub passage, the fourth passage comprises a sixth sub passage, a fourth sub passage, a first sub passage and a third sub passage, the fifth passage comprises a seventh sub passage and an eighth sub passage, the sixth passage comprises a fifth sub passage and a sixth sub passage, the first sub passage is used for connecting a first fluid machine and the first l