Cooling liquid filling and purging device

Through the integrated filling, purge, self-injection and self-discharge systems, the integration problems of filling and purge in liquid-cooled equipment are solved, and the efficient and quick filling and purge of coolant is achieved, which improves the reliability of the equipment and reduces costs.

CN120368628APending Publication Date: 2025-07-25HEFEI SWAN REFRIGERATOR TECH CO LTD
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Patent Information

Application Number
CN202510511976.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2025-07-25

AI Technical Summary

Technical Problem

Existing liquid-cooling equipment is difficult to integrate filling and purge into the same equipment, and there is a problem of cooling liquid reflux to the air pump.

Method used

A coolant filling and purge device is designed, integrating filling, purge, self-injection and self-discharge systems. It adopts a hand valve and a self-sealing joint. It connects the liquid storage tank, circulation pump, filter, air pump and return liquid self-sealing joint through pipelines to ensure that the coolant does not reflux, reduces components and connection pipelines, and uses a hand valve to improve reliability.

Benefits of technology

It realizes efficient and fast integrated filling and purge of coolant, reduces components and connection pipelines, improves purge reliability, reduces costs, and prevents coolant contamination.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a cooling liquid filling and purging device which is used for liquid cooling equipment, in the liquid cooling equipment, a liquid storage tank (1) fills cooling liquid into the liquid cooling equipment through a circulating pump (2), a hand valve A (3), a filter (4) and a liquid supply self-sealing connector (5) in the liquid cooling equipment through a filling system, the liquid cooling equipment further comprises a purging system, the purging system comprises an air pump (7), a hand valve B (8) and a liquid return self-sealing connector (9), an outlet of the air pump (7) is connected with an inlet of the hand valve B (8), and an outlet of the hand valve B (8) is connected with an outlet of the liquid return self-sealing connector (9). An outlet of the hand valve B (8) is connected with an inlet of the filter (4), an inlet of the liquid return self-sealing connector (9) is connected with an outlet of a cold liquid device, and an outlet of the liquid return self-sealing connector (9) is connected with a liquid return opening of the liquid storage tank (1). According to the device, filling, purging, self-liquid-filling and self-liquid-discharging are integrated, and the problem that cooling liquid flows back to the air pump during filling is solved.
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Description

Technical Field

[0001] The present invention relates to the field of liquid cooling equipment, and specifically to a coolant filling and purging device. Background Art

[0002] The liquid cooling equipment in the special field requires efficient and rapid filling and emptying of the coolant. The existing liquid cooling equipment is difficult to integrate filling and purging into the same liquid cooling equipment due to space limitations, and is limited by the pipeline structure of the existing liquid cooling equipment. Even if an air pump is integrated as a purging device, there is still a problem that the coolant flows back to the air pump during filling. Summary of the Invention

[0003] The present invention provides a coolant filling and purging device to solve the problems that it is difficult to integrate the filling and purging device in the existing liquid cooling equipment and there is easy backflow of the coolant.

[0004] To achieve the above object, the technical solution adopted by the present invention is as follows: A coolant filling and purging device for a liquid cooling equipment, in which the liquid cooling equipment outputs cold liquid from a liquid storage tank (1) to the cold liquid equipment through a filling system. The filling system includes a circulation pump (2), a manual valve A (3), a filter (4), and a liquid supply self-sealing joint (5). The outlet of the liquid storage tank (1) is connected to the inlet of the circulation pump (2) through a pipeline. The outlet of the circulation pump (2) is connected to the inlet of the manual valve A (3) through a pipeline. The outlet of the manual valve A (3) is connected to the inlet of the filter (4) through a pipeline. The outlet of the filter (4) is connected to the inlet of the liquid supply self-sealing joint (5) through a pipeline. The outlet of the liquid supply self-sealing joint (5) is connected to the inlet of the cold liquid equipment. It further includes a purging system, and the purging system includes an air pump (7), a manual valve B (8), and a liquid return self-sealing joint (9). The outlet of the air pump (7) is connected to the inlet of the manual valve B (8) through a pipeline. The outlet of the manual valve B (8) is connected to the inlet of the filter (4) through a pipeline. The inlet of the liquid return self-sealing joint (9) is connected to the outlet of the cold liquid equipment, and the outlet of the liquid return self-sealing joint (9) is connected to the liquid return port of the liquid storage tank (1) through a pipeline.

[0005] Further, the purging system further includes a manual valve C (10). The outlet of the liquid return self-sealing joint (9) is connected to the inlet of the manual valve C (10) through a pipeline, and the outlet of the manual valve C (10) is connected to the liquid return port of the liquid storage tank (1) through a pipeline.

[0006] Further, the purging system further includes a needle valve (11), and the outlet of the needle valve (11) is connected to the pipeline between the air pump (7) and the manual valve B (8) through a pipeline bypass.

[0007] Further, it further includes a self-draining system, and the self-draining system includes a manual valve D (17). The inlet of the manual valve D (17) is connected to the drain port of the liquid storage tank (1) through a pipeline.

[0008] Furthermore, it also includes a self-injection system, which includes a self-priming pump (14), the inlet of the self-priming pump (14) is connected to the cooling liquid source through a pipeline, and the outlet of the self-priming pump (14) is connected to the liquid filling port of the liquid storage tank (1) through a pipeline.

[0009] Furthermore, the filter (4), the pipeline between the liquid supply self-sealing joint (5), and the outlet pipeline of the liquid return self-sealing joint (9) are all partially wound around the same capstan (18).

[0010] Compared with the prior art, the present invention has the following advantages: 1) The present invention integrates filling, purging, self-filling and self-draining, and has the advantages of being convenient, fast and efficient.

[0011] 2) In the present invention, some devices for filling and purging are shared, which reduces the number of components and connecting pipelines, has a simple structure, low cost, and is convenient and universal.

[0012] 3) In the present invention, the hand valve A is normally open, and the hand valves B, C, and D are normally closed, which can solve the problem of coolant backflow to the air pump during filling, improve the reliability of purging, and use of hand valves is more reliable than solenoid valves.

[0013] 4) The present invention adopts a self-sealing quick connector to conveniently, quickly and efficiently connect the cooling liquid equipment and has good sealing performance to prevent the contamination of the cooling liquid; 5) The present invention adopts a needle valve to increase the purge form and improve versatility; 6) The liquid supply pipeline between the filter and the liquid supply self-sealing joint and the pipeline at the outlet of the liquid return self-sealing joint of the present invention adopt long pipelines that can be coiled on a capstan, which is convenient for connecting to the position required by the user and easy to retract. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural principle diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0016] like Figure 1As shown in the figure, this embodiment discloses a coolant filling and purging device for liquid cooling equipment. In the liquid cooling equipment, the coolant is output from the liquid storage tank 1 to the cold liquid equipment through the filling system. The filling system includes a circulation pump 2, a manual valve A 3, a filter 4, and a liquid supply self-sealing joint 5. The manual valve A 3 is normally open. A sight glass is installed on the liquid storage tank 1. The outlet of the liquid storage tank 1 is connected to the inlet of the circulation pump 2 through a pipeline. The outlet of the circulation pump 2 is connected to the inlet of the manual valve A 3 through a pipeline. The outlet of the manual valve A 3 is connected to the inlet of the filter 4 through a pipeline. The outlet of the filter 4 is connected to the inlet of the liquid supply self-sealing joint 5 through a liquid supply pipeline. The outlet of the liquid supply self-sealing joint 5 is connected to the inlet of the cold liquid equipment.

[0017] This embodiment further includes a purging system, a self-draining system, and a self-filling system, where: The purging system includes an air pump 7, a manual valve B 8, a return liquid self-sealing joint 9, a manual valve C 10, and a needle valve 11. The manual valve B 8 and the manual valve C 10 are normally closed. The outlet of the air pump 7 is connected to the inlet of the manual valve B 8 through a pipeline. The outlet of the manual valve B 8 is connected to the inlet of the filter 4 through a pipeline. The outlet of the needle valve 11 is connected to the pipeline between the outlet of the manual valve B 8 and the inlet of the filter 4 through a pipeline bypass; the inlet of the return liquid self-sealing joint 9 is connected to the outlet of the cold liquid equipment. The outlet of the return liquid self-sealing joint 9 is connected to the inlet of the manual valve C 10 through a return liquid pipeline. The outlet of the manual valve C 10 is connected to the return liquid port of the liquid storage tank 1 through a pipeline.

[0018] In this embodiment, the liquid supply pipeline between the filter 4 and the liquid supply self-sealing joint 5, and the return liquid pipeline between the outlet of the return liquid self-sealing joint 9 and the manual valve C 10 are both long pipes. Part of the liquid supply pipeline and the return liquid pipeline are wound around the same winch 18.

[0019] The self-draining system includes a manual valve D 17. The manual valve D 17 is normally closed. The inlet of the manual valve D 17 is connected to the drain port of the liquid storage tank 1 through a connecting pipe B 16. The manual valve D 17 leads to the outside of the liquid storage tank 1.

[0020] The self-filling system includes a filling rigid pipe 12, a hose 13, a self-priming pump 14, and a connecting pipe A 15. The inlet of the self-priming pump 14 is connected to the filling rigid pipe 12 through the hose 13. The filling rigid pipe 12 is connected to the coolant source. The outlet of the self-priming pump 14 is connected to the replenishing port of the liquid storage tank 1 through the connecting pipe A 15. The circulation pump 2, the air pump 7, and the self-priming pump 14 are respectively electrically connected to the controller The filling process of this embodiment is as follows: The liquid supply self-sealing joint 5 is docked with the filling port of the cold liquid equipment, and the filling system (liquid storage tank 1 → circulation pump 2 → manual valve A 3 → filter 4 → liquid supply self-sealing joint 5 → cold liquid equipment, at this time the manual valve A 3 is default open and the circulation pump 2 works) mode is started to complete the coolant filling.

[0021] The purging process of this embodiment is as follows: The liquid supply self-sealing joint 5 is docked with the filling port of the cold liquid equipment, and the liquid return self-sealing joint 9 is docked with the liquid discharge port of the cold liquid equipment. Turn on the purging system (air pump 7 (or connect to a nitrogen cylinder through the needle valve 11) → B hand valve 8 → filter 4 → liquid supply self-sealing joint 5 → cold liquid equipment → liquid return self-sealing joint 9 → C hand valve 10 → liquid storage tank 1. At this time, the A hand valve 3 is closed, the B hand valve 8 and the C hand valve 10 are opened, and the air pump 7 operates) mode to complete the purging of the coolant.

[0022] The self-filling process of this embodiment is as follows: The filling hard pipe 12 is placed in the pre-prepared coolant. Turn on the self-filling system (hard pipe 12 → hose 13 → self-priming pump 14 → pipe A 15 → liquid storage tank 1, the self-priming pump 14 operates, and at the same time, visually observe the liquid level of the liquid storage tank 1 through the sight glass) mode to complete the automatic filling of the coolant into the liquid storage tank 1.

[0023] The liquid discharge process of this embodiment is that the D hand valve 17 of the liquid discharge valve is opened, and the coolant is discharged from the liquid storage 1 → pipe B 16 → hand valve 17 to complete the discharge of the coolant in the liquid storage tank 1.

[0024] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. The embodiments described in the present invention are only descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Among the various specific technical features described in the above specific embodiments, they can be combined in any suitable manner without contradiction. As long as such a combination does not violate the idea of the present invention, it should also be regarded as the content disclosed in this disclosure. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

[0025] The present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention and without departing from the design idea of the present invention, various modifications and improvements made by those skilled in the art to the technical solution of the present invention should all fall within the protection scope of the present invention. The technical content claimed by the present invention has been fully recorded in the claims.

Claims

1. A coolant filling and purging device for a liquid cooling device. In the liquid cooling device, a liquid storage tank (1) outputs coolant to the liquid cooling device through a filling system. The filling system includes a circulation pump (2), a manual valve A (3), a filter (4), and a liquid supply self-sealing joint (5). The outlet of the liquid storage tank (1) is connected to the inlet of the circulation pump (2) through a pipeline. The outlet of the circulation pump (2) is connected to the inlet of the manual valve A (3) through a pipeline. The outlet of the manual valve A (3) is connected to the inlet of the filter (4) through a pipeline. The outlet of the filter (4) is connected to the inlet of the liquid supply self-sealing joint (5) through a pipeline. The outlet of the liquid supply self-sealing joint (5) is connected to the inlet of the liquid cooling device. It is characterized in that, It further includes a purging system, which comprises an air pump (7), a manual valve B (8), and a liquid return self-sealing joint (9). The outlet of the air pump (7) is connected to the inlet of the manual valve B (8) through a pipeline, the outlet of the manual valve B (8) is connected to the inlet of the filter (4) through a pipeline, the inlet of the liquid return self-sealing joint (9) is connected to the outlet of the cold liquid device, and the outlet of the liquid return self-sealing joint (9) is connected to the liquid return port of the liquid storage tank (1) through a pipeline.

2. The coolant filling and purging device according to claim 1, wherein The purging system further includes a manual valve C (10). The outlet of the liquid return self-sealing joint (9) is connected to the inlet of the manual valve C (10) through a pipeline, and the outlet of the manual valve C (10) is connected to the liquid return port of the liquid storage tank (1) through a pipeline.

3. The coolant filling and purging device according to claim 1, characterized in that, The purging system further includes a needle valve (11). The outlet of the needle valve (11) is connected to the pipeline between the air pump (7) and the manual valve B (8) through a pipeline bypass.

4. A coolant filling and purging device according to claim 1, characterized in that, It further includes a self-draining system, which comprises a manual valve D (17). The inlet of the manual valve D (17) is connected to the drain port of the liquid storage tank (1) through a pipeline.

5. A coolant filling and purging device according to claim 1, characterized in that, It further includes a self-injection system, which comprises a self-priming pump (14). The inlet of the self-priming pump (14) is connected to a coolant source through a pipeline, and the outlet of the self-priming pump (14) is connected to the liquid replenishing port of the liquid storage tank (1) through a pipeline.

6. A coolant filling and purging device according to any one of claims 1-5, characterized in that, Part of the pipeline between the filter (4) and the liquid supply self-sealing joint (5), as well as the outlet pipeline of the liquid return self-sealing joint (9), are all wound around the same winch (18).