Exhaust device and liquid cooling system

Abstract

The utility model relates to the technical field of liquid cooling, and particularly discloses an exhaust device which comprises an exhaust valve, a first quick connector and a second quick connector. Wherein the first quick connector is arranged at an inlet of the exhaust valve; the second quick connector is used for being connected with a to-be-exhausted pipeline, the first quick connector and the second quick connector are detachably connected, and the first quick connector and the second quick connector are opened in the butt joint state so as to communicate the pipeline with the exhaust valve; and when the first quick connector and the second quick connector are disconnected, the second quick connector is closed to seal the pipeline. The exhaust device provided by the utility model is convenient to operate and is not easily influenced by an installation angle. Besides, when exhausting is not needed, the first quick connector, namely the exhaust valve, can be taken down from the second quick connector, and only the first quick connector is reserved on the pipeline, so that space occupation is reduced, and the internal space of equipment such as a cabinet provided with the exhaust device can be saved. The utility model also discloses a liquid cooling system which also has the above technical effects.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling, and more specifically, to an exhaust device and a liquid cooling system. Background Art

[0002] A cabinet is an independent or self-supporting casing for accommodating electrical or electronic equipment. With the development of technology, the performance of equipment in the cabinet has been gradually improved, accompanied by a continuous increase in power consumption. Therefore, it is particularly important to dissipate heat from the equipment in the cabinet. Currently, one way to dissipate heat from the equipment (such as servers) in the cabinet is liquid cooling, that is, a terminal (such as a cold plate) for heat exchange with the equipment and a corresponding liquid cooling pipeline connected to the terminal are arranged in the cabinet.

[0003] When the liquid cooling system starts to inject coolant, in order to remove the gas remaining in the system and maintain the pressure balance in the system, an exhaust valve is usually arranged in the pipeline, and a valve (such as a ball valve) is arranged between the exhaust valve and the pipeline. When injecting coolant, the valve is opened for exhaust, and after the coolant injection is completed, the valve is closed to cut off the cooling liquid in the pipeline.

[0004] In the process of implementing the present application, the inventor found that there are at least the following problems in the prior art:

[0005] It is difficult to unify the final position angle of the valve after it is installed in place. When it is at an angle that is difficult for the operator to touch, it is difficult to open or close the valve, which in turn causes inconvenience to the operation of the liquid cooling system. Summary of the Utility Model

[0006] In view of this, the purpose of the present utility model is to provide an exhaust device and a liquid cooling system, and the structural design of the exhaust device and the liquid cooling system can effectively solve the problem that the valve for controlling the on-off of the pipeline and the exhaust valve is prone to inconvenient operation due to the deviation of the assembly orientation.

[0007] In order to achieve the above purpose, the present utility model provides the following technical solutions:

[0008] An exhaust device, comprising:

[0009] An exhaust valve;

[0010] A first quick connector arranged on the exhaust valve;

[0011] A second quick connector for connecting with the pipeline to be exhausted. The first quick connector and the second quick connector are detachably connected, and when the first quick connector and the second quick connector are in a butted state, both are opened to connect the pipeline and the exhaust valve; when the first quick connector and the second quick connector are in a disconnected state, the second quick connector is closed to seal the pipeline.

[0012] Optionally, in the above exhaust device, one of the first quick connector and the second quick connector has a plug, and the other has a socket for the plug to be inserted. The first quick connector and the second quick connector are docked or disconnected by plugging and unplugging along the axial direction of the plug.

[0013] Optionally, in the above exhaust device, the first quick connector is provided with a connecting portion, and the exhaust valve is provided with a fixing portion. The fixing portion cooperates with the connecting portion to fixedly connect the first quick connector and the exhaust valve.

[0014] Optionally, in the above exhaust device, the fixing portion includes an external thread provided at the head end of the exhaust valve, and the connecting portion includes an internal thread that mates with the external thread.

[0015] Optionally, in the above exhaust device, it further includes a connecting seat. The first quick connector is provided with a connecting portion, and the exhaust valve is provided with a fixing portion. The connecting seat is respectively connected to the connecting portion and the fixing portion, and the connecting seat has a channel that communicates with the first quick connector and the exhaust valve respectively.

[0016] Optionally, in the above exhaust device, the connecting portion includes a first external thread provided on the first quick connector, and the fixing portion includes a second external thread provided on the exhaust valve. The connecting seat is respectively provided with a first internal thread that mates with the first external thread and a second internal thread that mates with the second external thread.

[0017] Optionally, in the above exhaust device, the outer peripheral surface of the connecting seat includes at least one plane, and at least one of the planes is parallel to the axis of the connecting seat.

[0018] Optionally, in the above exhaust device, opposite ends of the connecting seat are respectively connected to the head end of the exhaust valve and one end of the first quick connector, so that the exhaust valve, the connecting seat, and the first quick connector are linearly distributed.

[0019] The exhaust device provided by the present utility model includes an exhaust valve, a first quick connector, and a second quick connector. Among them, the first quick connector is provided at the inlet of the exhaust valve; the second quick connector is used to connect to the pipeline to be exhausted. The first quick connector and the second quick connector are detachably connected, and both are opened in the docked state of the first quick connector and the second quick connector to communicate the pipeline with the exhaust valve; in the state where the first quick connector and the second quick connector are disconnected, the second quick connector is closed to seal the pipeline.

[0020] When the exhaust device provided by the present utility model is applied, the exhaust valve and the pipeline are connected through the first quick connector and the second quick connector. When the first quick connector and the second quick connector are docked and both are opened, the pipeline is communicated with the exhaust valve to realize pipeline exhaust. When it is necessary to disconnect the pipeline from the exhaust valve, the connection between the first quick connector and the second quick connector is disconnected, and the second quick connector is self-sealed, thereby closing the pipeline to cut off the liquid in the pipeline. In summary, by using the exhaust device provided by the present application, the on-off of the exhaust valve and the pipeline is controlled by the first quick connector and the second quick connector. The docking and disconnection operations of the first quick connector and the second quick connector are convenient and are not easily affected by the installation angle. In addition, when exhaust is not required, the first quick connector and the exhaust valve can be removed from the second quick connector, and only the second quick connector is retained on the pipeline, reducing the space occupation, and further saving the internal space of equipment such as the cabinet for installing the exhaust device.

[0021] To achieve the above object, the present utility model also provides a liquid cooling system, which includes any one of the above exhaust devices. Since the above exhaust device has the above technical effects, the liquid cooling system having the exhaust device should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 Structural schematic diagram of the exhaust device according to a specific embodiment of the present utility model;

[0024] Figure 2 For Figure 1 explosion schematic diagram;

[0025] Figure 3 Structural schematic diagram of the exhaust device according to another specific embodiment of the present utility model;

[0026] Figure 4 For Figure 3 explosion schematic diagram.

[0027] REFERENCE SIGNS:

[0028] 1 - exhaust valve; 2 - first quick connector; 3 - second quick connector; 4 - connection seat;

[0029] 11 - fixing part; 21 - jack; 31 - plug; 22 - connecting part; 41 - plane. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] An embodiment of the present utility model discloses an exhaust device and a liquid cooling system, so as to facilitate the control of the on-off of the exhaust valve and the pipeline and avoid the influence of the installation angle on the operation.

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0032] The exhaust device provided in this application is applicable to but not limited to liquid cooling systems and can be connected to a pipeline to achieve the exhaust of the pipeline. Different from the conventional method of setting a valve between the exhaust valve and the pipeline to control the on-off, this exhaust device is provided with a first quick connector and a second quick connector. Utilizing the quick-disassembly characteristic between the two, the disassembly and assembly of the two can be conveniently realized. And when the two are disconnected, the second quick connector is self-sealing, thus closing the pipeline and disconnecting the connection with the exhaust valve.

[0033] In some embodiments, please refer to Figures 1 - 2 , the exhaust device provided by the present utility model includes an exhaust valve 1, a first quick connector 2, and a second quick connector 3. Among them, the exhaust valve 1 can adopt a conventional structure with an exhaust function. The first quick connector 2 is provided on the exhaust valve 1. It can be understood that the first quick connector 2 can be either a separate part connected to the exhaust valve 1, such as connected by a conventional fixing method, or a part of the exhaust valve 1, that is, the first quick connector 2 can be integrally arranged with the exhaust valve 1. The second quick connector 3 is used to connect to the pipeline to be exhausted. When this exhaust device is applied to a liquid cooling system, it is connected to the pipeline of the liquid cooling system. The first quick connector 2 and the second quick connector 3 cooperate to form a pair of quick-connect joints. The first quick connector 2 and the second quick connector 3 are detachably connected, and both are opened in the butted state of the first quick connector 2 and the second quick connector 3 to connect the pipeline and the exhaust valve 1. That is, both the first quick connector 2 and the second quick connector 3 are provided with flow channels. In the butted state of the two, the internal flow channels are all in an open state, so as to connect the pipeline and the exhaust valve 1 to achieve exhaust. It can be understood that the connection between the first quick connector 2 and the exhaust valve 1, the connection between the second quick connector 3 and the pipeline, and the connection between the first quick connector 2 and the second quick connector 3 in the butted state are respectively sealed to prevent the internal fluid from leaking from the connection position to the external environment. In the state where the first quick connector 2 and the second quick connector 3 are disconnected, the second quick connector 3 is closed to seal the pipeline. The switching between the open and closed states of the second quick connector 3 is controlled by the disassembly and assembly of the first quick connector 2 and the second quick connector 3. Specifically, when the first quick connector 2 and the second quick connector 3 are butted, it acts on the second quick connector 3 to open it. When the first quick connector 2 and the second quick connector 3 are disconnected, the second quick connector 3 automatically closes accordingly.

[0034] When applying the exhaust device provided by the present utility model, the exhaust valve 1 and the pipeline are connected through the first quick connector 2 and the second quick connector 3. When the first quick connector 2 and the second quick connector 3 are in the butted state and both are opened, the pipeline is communicated with the exhaust valve 1 to realize pipeline exhaust. When it is necessary to disconnect the pipeline from the exhaust valve 1, the connection between the first quick connector 2 and the second quick connector 3 is disconnected, and the second quick connector 3 is self-sealed, thereby closing the pipeline to cut off the liquid in the pipeline. In summary, by adopting the exhaust device provided by this application, the on-off of the exhaust valve 1 and the pipeline is controlled by the first quick connector 2 and the second quick connector 3, that is, the self-sealing characteristic of the second quick connector 3 is used to realize the cut-off and conduction of the pipeline and the exhaust valve 1, avoiding the need for personnel to control through valve switches, and the butting and disconnection operations of the first quick connector 2 and the second quick connector 3 are convenient and not easily affected by the installation angle. In addition, when exhaust is not required, the first quick connector 2 and the exhaust valve 1 can be removed from the second quick connector 3, and only the second quick connector 3 is retained on the pipeline, reducing the space occupation, and thus saving the internal space of equipment such as the cabinet for installing this exhaust device.

[0035] In some embodiments, please refer to Figures 3 - 4 , one of the first quick connector 2 and the second quick connector 3 has a plug 31, and the other has a jack 21 for the plug 31 to be inserted. The first quick connector 2 and the second quick connector 3 are butted or disconnected by inserting and pulling along the axial direction of the plug 31. That is, the first quick connector 2 and the second quick connector 3 can be butted or disconnected by inserting and pulling, specifically, they can be butted by inserting, such as butted and clamped, and then when disconnecting, the first quick connector 2 can be pulled out from the second quick connector 3. By adopting the way of inserting and pulling, the operation is convenient. The user only needs to gently press to complete the assembly. The butting and inserting / pulling operations have no requirements for the angle, solving the problem of non-uniform valve switch positions when using valve control. Specifically, one of the first quick connector 2 and the second quick connector 3 is a male quick connector, and the other is a female quick connector. The male quick connector and the female quick connector are extremely convenient and fast to install. When packing and shipping, they can be packed separately and do not have to be assembled and shipped with the manifold, reducing the damage caused by packaging and transportation.

[0036] In some embodiments, please refer to Figure 2 , the first quick connector 2 is provided with a connecting portion 22, and the exhaust valve 1 is provided with a fixing portion 11. The fixing portion 11 and the connecting portion 22 cooperate to fixedly connect the first quick connector 2 and the exhaust valve 1. That is, the first quick connector 2 and the exhaust valve 1 are connected through the cooperation of the connecting portion 22 and the fixing portion 11. Of course, in the connected state, the flow channel in the first quick connector 2 is communicated with the exhaust valve 1. In this embodiment, by providing the connecting portion 22 on the first quick connector 2 that cooperates with the fixing portion 11 on the exhaust valve 1, the first quick connector 2 and the exhaust valve 1 are directly connected, simplifying the structure and reducing the manufacturing cost.

[0037] In some embodiments, the fixing portion 11 includes an external thread provided at the head end of the exhaust valve 1, and the connecting portion 22 includes an internal thread that mates with the external thread. That is, the exhaust valve 1 is threadedly connected to the first quick connector 2, which is convenient to operate and has a reliable connection. Moreover, the threaded connection not only achieves reliable installation but also has a sealing effect. Specifically, the first quick connector 2 can be a conventional female quick connector, and an internal thread can be machined on it to mate with the external thread on the exhaust valve 1 for threaded connection. According to the size of the external thread on the exhaust valve 1, the end of the first quick connector 2 can be thickened and an internal thread can be machined. The first quick connector 2 can be formed separately or prepared by machining an existing first quick connector. In other embodiments, the fixing portion 11 and the connecting portion 22 can also be correspondingly arranged as a mating snap-fit structure, such as a snap head and a snap groove, which can also reliably connect the exhaust valve 1 and the first quick connector 2.

[0038] In the above embodiments, the first quick connector 2 is directly connected to the exhaust valve 1. In some other embodiments, please refer to Figures 3 - 4 , the first quick connector 2 is indirectly connected to the exhaust valve 1. Specifically, the exhaust device further includes a connection seat 4. The first quick connector 2 is provided with a connecting portion 22, the exhaust valve 1 is provided with a fixing portion 11, and the connection seat 4 is respectively connected to the connecting portion 22 and the fixing portion 11. Moreover, the connection seat 4 has a channel that communicates with the first quick connector 2 and the exhaust valve 1 respectively. That is, the connection seat 4 is correspondingly arranged according to the structure of the connecting portion 22 on the first quick connector 2 and the structure of the fixing portion 11 on the exhaust valve 1 so that it can cooperate with the connecting portion 22 and the fixing portion 11 respectively for fixed connection, thereby assembling the exhaust valve 1 and the first quick connector 2 together. The channel in the connection seat 4 is used to communicate with the exhaust valve 1 and the first quick connector 2 respectively, thereby connecting the first quick connector 2 and the exhaust valve 1. It can be understood that the channel can be either a straight channel or a bent channel, which can be set according to the relative position and interface position of the exhaust valve 1 and the first quick connector 2. By providing the connection seat 4, it can be used as an adapter to adapt to different connection structures. That is, the connection seat 4 is respectively provided with corresponding structures for connection corresponding to the connecting portion 22 and the fixing portion 11, thereby reducing the structural limitations on the first quick connector 2 and the exhaust valve 1. That is, the connecting portion 22 and the fixing portion 11 may not be adapted, so it is convenient to use existing components in the exhaust device provided in the present application, reducing the manufacturing cost.

[0039] In some embodiments, the connecting portion 22 includes a first external thread provided on the first quick connector 2, and the fixing portion 11 includes a second external thread provided on the exhaust valve 1. The connecting seat 4 is respectively provided with a first internal thread that mates with the first external thread and a second internal thread that mates with the second external thread. That is, the exhaust valve 1 is threadedly connected to the connecting seat 4, and the connecting seat 4 is also threadedly connected to the first quick connector 2. Threaded connection is convenient to operate and the connection is reliable. Moreover, while achieving reliable installation through threaded connection, it also has a sealing effect. The two ends of the connecting seat 4 are respectively provided with a first internal thread and a second internal thread, and their helix directions can be the same or different, and they can be correspondingly set according to the helix directions of the first external thread and the second external thread. Specifically, if the helix directions of the first internal thread and the second internal thread are opposite, then the rotation directions of the connecting seat 4 when connecting to the exhaust valve 1 and the first quick connector 2 are opposite, which is convenient for the connecting seat 4 to be connected to the exhaust valve 1 and the first quick connector 2 respectively and to be disassembled from the exhaust valve 1 or the first quick connector 2 separately.

[0040] In some embodiments, the opposite ends of the connecting seat 4 are respectively connected to the head end of the exhaust valve 1 and one end of the first quick connector 2, such as through the above-mentioned threaded connection, so that the exhaust valve 1, the connecting seat 4, and the first quick connector 2 are linearly distributed. Specifically, the connecting portion 22 includes a first external thread provided at one end of the first quick connector 2, and the fixing portion 11 includes a second external thread provided at the head end of the exhaust valve 1. The two ends of the connecting seat 4 are respectively provided with a first internal thread that mates with the first external thread and a second internal thread that mates with the second external thread. By respectively arranging the exhaust valve 1 and the first quick connector 2 at the opposite ends of the connecting seat 4, the three can form a through structure, which is convenient for installing the exhaust device vertically in the pipeline to facilitate the gas in the pipeline to float and be discharged by the exhaust valve 1.

[0041] In some embodiments, the outer peripheral surface of the connecting seat 4 includes at least one plane 41, and at least one plane 41 is parallel to the axis of the connecting seat 4. By providing the plane 41 on the outer peripheral surface of the connecting seat 4, it is convenient for the user to pinch. For example, when assembling the connecting seat 4 and the exhaust valve 1, the user can pinch the plane 41 to apply force to drive the connecting seat 4 to rotate, so as to lock it with the exhaust valve 1. In addition, by providing the plane 41, it is also convenient to operate the connecting seat 4 with tools such as a wrench to achieve the disassembly and assembly of the connecting seat 4 with the exhaust valve 1 and the first quick connector 2. Specifically, the opposite sides of the outer peripheral surface of the connecting seat 4 are respectively provided with planes 41, and the two are parallel to further facilitate the user's operation. In other embodiments, the outer peripheral surface of the connecting seat 4 can also be a cylindrical surface or other curved surfaces.

[0042] In some embodiments, the second quick connector 3 is also used for detachably connecting to a third quick connector, and the third quick connector is connected to other components, such as a temperature sensor, a pressure sensor, or other branches. That is, the second quick connector 3 can be connected to both the first quick connector 2 and the third quick connector. Then, according to needs, the second quick connector 3 can optionally be connected to the first quick connector 2 for exhausting air or connected to the third quick connector for communicating with other components.

[0043] In some embodiments, the outlet of the exhaust valve 1 is connected to an exhaust pipe to guide the exhaust to the external environment or a preset space.

[0044] Based on the exhaust device provided in the above embodiments, the present utility model further provides a liquid cooling system, and this liquid cooling system includes any one of the exhaust devices in the above embodiments. Since this liquid cooling system adopts the exhaust device in the above embodiments, the beneficial effects of this liquid cooling system can be referred to the above embodiments.

[0045] In some embodiments, the liquid cooling system includes a terminal for heat exchange with a heat element and an inlet liquid pipe and a return liquid pipe respectively communicating with the terminal, and the second quick connector is connected to the top of the return liquid pipe. The terminal can specifically be a liquid cooling plate. The low-temperature coolant in the inlet liquid pipe flows through the terminal to cool the heat element, and the temperature of the coolant rises. The high-temperature coolant is transported to an external liquid cooling pipe through the return water pipe to achieve the return water of the liquid cooling system. The second quick connector is connected to the top of the return liquid pipe, so that the gas in the pipe can be smoothly discharged when injecting the coolant.

[0046] Specifically, the liquid cooling system further includes a manifold. The coolant is transported from the liquid cooling pipe to the manifold and then distributed from the manifold to each terminal. The coolant in the terminal can exchange heat with the equipment. After heat exchange, the coolant flows out of the terminal and flows out from the liquid outlet, and so on in a cycle to achieve the cooling of the equipment in the cabinet. When starting to inject the coolant into this liquid cooling system, gas-liquid exchange will occur in the main pipe of the manifold. In order to exhaust the gas remaining in the pipe and maintain the pressure balance in the pipe, an exhaust device is provided at the top of the return liquid pipe. And after the coolant injection is completed, the first quick connector is detached from the second quick connector, and the second quick connector is self-sealed accordingly to cut off the cooling liquid in the pipe. The specific exhaust device can be arranged at the top of the main return liquid pipe of the manifold to ensure the normal discharge of the gas in the pipe when starting to inject liquid into the manifold and ensure the normal operation of the equipment.

[0047] Furthermore, the liquid inlet main pipeline and the liquid return main pipeline of the manifold are respectively arranged in the liquid cooling cabinet in a vertically installed manner. The function of the liquid inlet main pipeline is to divert the low-temperature cooling liquid transported by the external liquid cooling pipeline to each branch pipeline, and the branch pipeline transports the low-temperature cooling liquid to the terminals for dissipating heat from the heat generating components, such as the liquid cooling plate for dissipating heat from the server, to meet the continuous heat dissipation requirements of the equipment. The function of the liquid return main pipeline is to collect the high-temperature cooling liquid flowing out from each terminal and transport it to the external liquid cooling pipeline to realize the return water of the liquid cooling system. When the manifold starts to inject the cooling liquid, the first quick connector and the second quick connector are connected and conducted, so as to realize the connection between the exhaust valve and the liquid return main pipeline. When the cooling liquid is injected, the gas in the pipeline is discharged smoothly. When the liquid injection of the manifold is completed and the pipeline is filled with liquid and circulates by itself without the need for exhaust, the first quick connector can be directly unplugged, and the self-sealing characteristic of the second quick connector is used to close the liquid return main pipeline and cut off the cooling liquid.

[0048] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same and similar parts among the various embodiments, reference can be made to each other.

[0049] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An exhaust device, characterized in that, Comprising: An exhaust valve (1); A first quick connector (2) provided on the exhaust valve (1); A second quick connector (3) for connecting to the pipeline to be exhausted. The first quick connector (2) and the second quick connector (3) are detachably connected, and both are opened in the butted state of the first quick connector (2) and the second quick connector (3) to communicate the pipeline with the exhaust valve (1); in the state where the first quick connector (2) and the second quick connector (3) are disconnected, the second quick connector (3) is closed to seal the pipeline.

2. The exhaust device according to claim 1, wherein One of the first quick connector (2) and the second quick connector (3) has a plug (31), and the other has a jack (21) for the plug (31) to be inserted. The first quick connector (2) and the second quick connector (3) are butted or disconnected by inserting and pulling along the axial direction of the plug (31).

3. The exhaust device according to claim 1 or 2, characterized in that, The first quick connector (2) is provided with a connecting portion (22), and the exhaust valve (1) is provided with a fixing portion (11). The fixing portion (11) cooperates with the connecting portion (22) to fixedly connect the first quick connector (2) and the exhaust valve (1).

4. The exhaust device according to claim 3, characterized in that, The fixing portion (11) includes an external thread provided at the head end of the exhaust valve (1), and the connecting portion (22) includes an internal thread that mates with the external thread.

5. The exhaust device according to claim 1 or 2, characterized in that, It further includes a connecting seat (4). The first quick connector (2) is provided with a connecting portion (22), and the exhaust valve (1) is provided with a fixing portion (11). The connecting seat (4) is respectively connected to the connecting portion (22) and the fixing portion (11), and the connecting seat (4) has a channel that communicates with the first quick connector (2) and the exhaust valve (1) respectively.

6. The exhaust device according to claim 5, characterized in that, The connecting portion (22) includes a first external thread provided on the first quick connector (2), and the fixing portion (11) includes a second external thread provided on the exhaust valve (1). The connecting seat (4) is respectively provided with a first internal thread that mates with the first external thread and a second internal thread that mates with the second external thread.

7. The exhaust device according to claim 6, characterized in that, The outer peripheral surface of the connecting seat (4) includes at least one plane (41), and at least one of the planes (41) is parallel to the axis of the connecting seat (4).

8. The exhaust device according to claim 5, characterized in that, The opposite ends of the connecting seat (4) are respectively connected to the head end of the exhaust valve (1) and one end of the first quick connector (2), so that the exhaust valve (1), the connecting seat (4) and the first quick connector (2) are linearly distributed.

9. A liquid cooling system, characterized in that, Including the exhaust device according to any one of claims 1-8.

10. The liquid cooling system according to claim 9, characterized in that, The liquid cooling system includes a terminal for exchanging heat with a heat element and a liquid inlet pipeline and a liquid return pipeline respectively communicating with the terminal. The second quick connector (3) is connected to the top end of the liquid return pipeline.

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