Exhaust apparatus and liquid cooling system

Abstract

An exhaust apparatus and a liquid cooling system. The exhaust apparatus comprises an exhaust valve, a first quick connector, and a second quick connector, the first quick connector being disposed at an inlet of the exhaust valve, the second quick connector being used for connection to a line to be exhausted, and the first quick connector and the second quick connector being detachably connected. In a state in which the first quick connector and the second quick connector are connected, both are open, so as to place the line in communication with the exhaust valve; in a state in which the first quick connector and the second quick connector are disconnected, the second quick connector is closed, so as to seal the pipeline. The present exhaust device is easy to operate, and is not easily affected by an installation angle. In addition, when exhaust is not needed, the first quick connector and the exhaust valve can be removed from the second quick connector, leaving only the first quick connector on the pipeline, reducing the amount of space occupied, and thereby saving internal space in equipment where the exhaust device is installed, such as a cabinet.

Description

Exhaust device and liquid cooling system

[0001] The present application claims priority to the Chinese patent application No. 202421521951.9, filed on June 28, 2024, and entitled "Exhaust device and liquid cooling system", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of liquid cooling, more particularly, to an exhaust device and a liquid cooling system. BACKGROUND

[0003] A cabinet is a self-contained or self-supporting enclosure for housing electrical or electronic equipment. With the development of technology, the performance of equipment in the cabinet is gradually improved, accompanied by the continuous rise of power consumption, so it is particularly important to cool the equipment in the cabinet. At present, one of the cooling methods for cooling the equipment (such as a server) in the cabinet is liquid cooling, that is, a terminal (such as a cold plate) for heat exchange with the equipment is arranged in the cabinet, and a liquid cooling pipeline connected with the terminal is arranged correspondingly.

[0004] In order to exclude the gas remaining in the system and maintain the pressure balance in the system when the liquid cooling system starts to inject cooling liquid, 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 the cooling liquid is injected, the valve is opened to exhaust, and after the injection of the cooling liquid is completed, the valve is closed to cut off the cooling liquid in the pipeline.

[0005] In the process of implementing the present application, the inventors found that at least the following problems exist in the prior art:

[0006] The final position angle of the valve after installation is difficult to unify, and when it is at an angle that is difficult for an operator to touch, the opening or closing of the valve is difficult, thereby causing inconvenience to the operation of the liquid cooling system. SUMMARY

[0007] Therefore, the purpose of the present application 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 inconvenient to operate due to the deviation of the installation orientation.

[0008] In order to achieve the above purpose, the present application provides the following technical solutions:

[0009] An exhaust device, comprising:

[0010] an exhaust valve;

[0011] a first quick connector arranged at the exhaust valve;

[0012] A second quick connector is used to connect with a pipeline to be exhausted, the first quick connector and the second quick connector are detachably connected, and the first quick connector and the second quick connector are both opened in the state of being connected to communicate the pipeline with the exhaust valve; in the state of being disconnected, the second quick connector is closed to seal the pipeline.

[0013] Optionally, in the 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, and the first quick connector and the second quick connector are connected or disconnected by plugging along the axis of the plug.

[0014] Optionally, in the exhaust device, the first quick connector is provided with a connecting part, and the exhaust valve is provided with a fixing part, and the fixing part cooperates with the connecting part to fixedly connect the first quick connector with the exhaust valve.

[0015] Optionally, in the exhaust device, the fixing part comprises an external thread arranged at the head end of the exhaust valve, and the connecting part comprises an internal thread matched with the external thread.

[0016] Optionally, in the exhaust device, a connecting seat is further provided, the first quick connector is provided with a connecting part, the exhaust valve is provided with a fixing part, the connecting seat is connected with the connecting part and the fixing part respectively, and the connecting seat has a passage communicated with the first quick connector and the exhaust valve respectively.

[0017] Optionally, in the exhaust device, the connecting part comprises a first external thread arranged at the first quick connector, the fixing part comprises a second external thread arranged at the exhaust valve, and the connecting seat is provided with a first internal thread matched with the first external thread and a second internal thread matched with the second external thread respectively.

[0018] Optionally, in the exhaust device, the outer circumferential surface of the connecting seat comprises at least one flat surface, and at least one of the flat surfaces is parallel to the axis of the connecting seat.

[0019] Optionally, in the exhaust device, the opposite ends of the connecting seat are connected with the head end of the exhaust valve and one end of the first quick connector respectively, so that the exhaust valve, the connecting seat and the first quick connector are distributed in a straight line.

[0020] Compared with the prior art, the technical scheme provided by the application has at least the following beneficial effects:

[0021] The exhaust device provided in the application comprises an exhaust valve, a first quick connector and a second quick connector. The first quick connector is arranged at the inlet of the exhaust valve; the second quick connector is used for connecting with a pipeline to be exhausted; the first quick connector is detachably connected with the second quick connector, and both the first quick connector and the second quick connector are opened in the state of abutting connection to communicate the pipeline with the exhaust valve; in the state of disconnection of the first quick connector and the second quick connector, the second quick connector is closed to seal the pipeline.

[0022] By using the exhaust device provided in the application, the first quick connector and the second quick connector are connected between the exhaust valve and the pipeline, both the first quick connector and the second quick connector are opened in the state of abutting connection, the pipeline is communicated with the exhaust valve, and the pipeline is exhausted. When it is needed to disconnect the pipeline from the exhaust valve, the first quick connector and the second quick connector are disconnected, and the second quick connector is self-sealed to seal the pipeline and cut off the liquid in the pipeline. In summary, by using the exhaust device provided in the application, the connection and disconnection of the exhaust valve and the pipeline are controlled by the first quick connector and the second quick connector, the abutting connection and disconnection 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 needed, the first quick connector and the exhaust valve can be removed from the second quick connector, only the second quick connector is retained on the pipeline, the space occupation is reduced, and the internal space of a cabinet or other equipment in which the exhaust device is installed can be saved.

[0023] In order to achieve the above-mentioned purpose, the application further provides a liquid cooling system comprising any one of the above-mentioned exhaust devices. Since the above-mentioned exhaust device has the above-mentioned technical effects, the liquid cooling system with the exhaust device should also have corresponding technical effects. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0025] Fig. 1 is a structural schematic view of an exhaust device according to an embodiment of the application;

[0026] Fig. 2 is an exploded schematic view of Fig. 1;

[0027] Fig. 3 is a structural schematic view of an exhaust device according to another embodiment of the application;

[0028] Fig. 4 is an exploded schematic view of Fig. 3.

[0029] Reference signs: 1 - exhaust valve; 2 - first quick connector; 3 - second quick connector; 4 - connecting seat; 11 - fixed part; 21 - socket; 31 - plug; 22 - connecting part; 41 - plane. DETAILED DESCRIPTION

[0030] The embodiments of the present application disclose an exhaust device and a liquid cooling system, so as to control the on-off of the exhaust valve and the pipeline, and avoid the influence of the installation angle on the operation.

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0032] The exhaust device provided by the present application is applicable to but not limited to a liquid cooling system, and can be connected to a pipeline to realize the exhaust of the pipeline. It is different from the conventional valve arranged between the exhaust valve and the pipeline to realize the on-off control. The exhaust device is provided with a first quick connector and a second quick connector, the quick release characteristics between the two are utilized to conveniently realize the disassembly and assembly of the two, and when the two are disconnected, the second quick connector is self-sealed, so as to close the pipeline and disconnect the communication with the exhaust valve.

[0033] In some embodiments, referring to Figs. 1-2, the exhaust device provided by the present application includes an exhaust valve 1, a first quick connector 2 and a second quick connector 3. The exhaust valve 1 can adopt a conventional structure with an exhaust function. The first quick connector 2 is arranged on the exhaust valve 1. It can be understood that the first quick connector 2 can be a separate part connected to the exhaust valve 1 by a conventional fixing method, or it can be integrated with the exhaust valve 1, i.e. the first quick connector 2 can be arranged integrally with the exhaust valve 1. The second quick connector 3 is used to connect to a pipeline to be exhausted. When the 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 cooperates with the second quick connector 3 to form a pair of quick connectors. The first quick connector 2 and the second quick connector 3 are detachably connected, and both the first quick connector 2 and the second quick connector 3 are open in the state of abutting against each other to communicate the pipeline with the exhaust valve 1, i.e. the first quick connector 2 and the second quick connector 3 are both provided with flow channels, and the internal flow channels are both in an open state in the state of abutting against each other, thereby communicating the pipeline with the exhaust valve 1 to achieve exhaust. It can be understood that the connection positions between the first quick connector 2 and the exhaust valve 1, between the second quick connector 3 and the pipeline, and between the first quick connector 2 and the second quick connector 3 in the state of abutting against each other are respectively sealed to prevent internal fluid from leaking to the external environment. In the state of disconnecting the first quick connector 2 from the second quick connector 3, 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 disconnection and connection 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 abut against each other, the second quick connector 3 is opened by the action of the first quick connector 2, and when the first quick connector 2 and the second quick connector 3 are disconnected, the second quick connector 3 is automatically closed correspondingly.

[0034] By applying the exhaust device provided by the present application, the exhaust valve 1 is connected to the pipeline through the first quick connector 2 and the second quick connector 3. In the state of abutting against each other of the first quick connector 2 and the second quick connector 3, both of them are open, and then the pipeline is communicated with the exhaust valve 1 to achieve 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 sealing the pipeline to cut off the liquid in the pipeline. In summary, by applying the exhaust device provided by the present application, the connection and disconnection of the exhaust valve 1 and the pipeline are controlled by the first quick connector 2 and the second quick connector 3, i.e. the self-sealing characteristics of the second quick connector 3 are utilized to achieve the cut-off and conduction of the pipeline and the exhaust valve 1, thereby avoiding the need for personnel to control the valve switch, and the abutting and disconnecting 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, thereby reducing the space occupation and further saving the internal space of the cabinet and other equipment in which the exhaust device is installed.

[0035] In some embodiments, referring to Figs. 3-4, one of the first quick connector 2 and the second quick connector 3 has a plug 31, and the other has a socket 21 for the plug 31 to be inserted into, and the first quick connector 2 and the second quick connector 3 are connected or disconnected by plugging along the axis direction of the plug 31. That is, the first quick connector 2 and the second quick connector 3 can be connected or disconnected by plugging, and can be connected by plugging, for example, by plugging to be clamped, and then the first quick connector 2 is pulled out of the second quick connector 3 to be disconnected. By plugging, the operation is convenient. The user only needs to press lightly to complete the assembly. The connection and plugging operation has no angle requirement, and solves the problem of non-uniform valve opening position 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. They can be packaged and shipped separately, and do not need to be assembled with the water distributor for shipping, reducing damage caused by packaging and transportation.

[0036] In some embodiments, referring to Fig. 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 cooperates with the connecting portion 22 to fixedly connect the first quick connector 2 with the exhaust valve 1. That is, the first quick connector 2 is connected with the exhaust valve 1 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 in communication with the exhaust valve 1. In this embodiment, the first quick connector 2 is directly connected with the exhaust valve 1 by providing the connecting portion 22 on the first quick connector 2 to cooperate with the fixing portion 11 on the exhaust valve 1, which simplifies the structure and reduces 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 matched with the external thread. That is, the exhaust valve 1 is threadedly connected with the first quick connector 2, which is convenient to operate and reliable in connection. Moreover, the threaded connection has a sealing effect while achieving reliable installation. Specifically, the first quick connector 2 can adopt a conventional female quick connector, and the internal thread can be machined thereon to cooperate 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 portion of the first quick connector 2 can be thickened and machined with the internal thread. The first quick connector 2 can be separately formed or machined from an existing first quick connector. In other embodiments, the fixing portion 11 and the connecting portion 22 can also be correspondingly provided as a clamping structure, such as a clamping head and a clamping groove, which can also reliably connect the exhaust valve 1 with the first quick connector 2.

[0038] In the above embodiments, the first quick connector 2 is directly connected with the exhaust valve 1. In other embodiments, please refer to Figs. 3-4, the first quick connector 2 is indirectly connected with the exhaust valve 1. Specifically, the exhaust device further comprises a connecting 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, the connecting seat 4 is connected with the connecting portion 22 and the fixing portion 11 respectively, and the connecting seat 4 has a passage which is in communication with the first quick connector 2 and the exhaust valve 1 respectively. That is, the connecting seat 4 is 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 be matched with the connecting portion 22 and the fixing portion 11 respectively to be fixedly connected, thereby assembling the exhaust valve 1 and the first quick connector 2 together. The passage in the connecting seat 4 is used to be in communication with the exhaust valve 1 and the first quick connector 2 respectively, thereby connecting the first quick connector 2 and the exhaust valve 1 together. It can be understood that the passage can be a straight passage or a bent passage, which is arranged according to the relative position of the exhaust valve 1 and the first quick connector 2 and the position of the interface. By arranging the connecting seat 4, it can be used as an adapter to adapt to different connection structures, that is, the connecting seat 4 is provided with corresponding structures corresponding to the connecting portion 22 and the fixing portion 11 respectively to be connected, thereby reducing the structural limitation of the first quick connector 2 and the exhaust valve 1, that is, the connecting portion 22 and the fixing portion 11 can not be matched, thereby facilitating the use of existing components in the exhaust device provided by the application, and reducing the manufacturing cost.

[0039] In some embodiments, the connecting portion 22 comprises a first external thread arranged on the first quick connector 2, the fixing portion 11 comprises a second external thread arranged on the exhaust valve 1, and the connecting seat 4 is provided with a first internal thread matched with the first external thread and a second internal thread matched with the second external thread respectively. That is, the exhaust valve 1 is threadedly connected with the connecting seat 4, and the connecting seat 4 is also threadedly connected with the first quick connector 2, which is convenient to operate and reliable in connection. The threaded connection has a sealing effect while realizing reliable installation. The two ends of the connecting seat 4 are respectively provided with the first internal thread and the second internal thread, and the rotation directions of the two can be the same or different, which can be arranged according to the rotation directions of the first external thread and the second external thread. Specifically, the rotation directions of the first internal thread and the second internal thread are opposite, so that the rotation directions of the connecting seat 4 when connected with the exhaust valve 1 and the first quick connector 2 are opposite, thereby facilitating the connection of the connecting seat 4 with the exhaust valve 1 and the first quick connector 2 respectively and the separate disassembly of the exhaust valve 1 or the first quick connector 2.

[0040] In some embodiments, the opposite ends of the connecting seat 4 are connected with the head end of the exhaust valve 1 and the end of the first quick connector 2 respectively, such as through the threaded connection described above, so that the exhaust valve 1, the connecting seat 4 and the first quick connector 2 are arranged in a straight line. Specifically, the connecting part 22 includes a first external thread arranged at the end of the first quick connector 2, the fixing part 11 includes a second external thread arranged at the head end of the exhaust valve 1, and the opposite ends of the connecting seat 4 are respectively provided with a first internal thread matched with the first external thread and a second internal thread matched with the second external thread. By 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 straight-through structure, so as to facilitate the installation of the exhaust device in the pipeline in the vertical direction, so as to facilitate the floating of the gas in the pipeline and the discharge by the exhaust valve 1.

[0041] In some embodiments, the outer circumferential surface of the connecting seat 4 includes at least one flat surface 41, and the at least one flat surface 41 is parallel to the axis of the connecting seat 4. By arranging the flat surface 41 on the outer circumferential surface of the connecting seat 4, it is convenient for the user to pinch, such as when assembling the connecting seat 4 with the exhaust valve 1, the user can pinch the flat surface 41 to exert force to drive the connecting seat 4 to rotate, so as to be locked with the exhaust valve 1. In addition, by arranging the flat surface 41, it is also convenient to operate the connecting seat 4 by a wrench or other tools to realize 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 circumferential surface of the connecting seat 4 are respectively provided with flat surfaces 41, which are parallel to each other, so as to further facilitate the operation of the user. In other embodiments, the outer circumferential surface of the connecting seat 4 can also be a cylindrical surface or other curved surface.

[0042] In some embodiments, the second quick connector 3 is also used for detachable connection with a third quick connector, and the third quick connector is connected with other elements, such as a temperature sensor, a pressure sensor or other branches. That is, the second quick connector 3 can be connected with the first quick connector 2 and the third quick connector, so that the second quick connector 3 is selectively connected with the first quick connector 2 for exhaust or connected with the third quick connector for connecting other elements according to needs.

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

[0044] Based on the exhaust device provided in the above embodiments, the application further provides a liquid cooling system including any one of the exhaust devices in the above embodiments. Since the liquid cooling system adopts the exhaust device in the above embodiments, the beneficial effects of the liquid cooling system please refer to the above embodiments.

[0045] In some embodiments, the liquid cooling system comprises a terminal for heat exchange with the heat elements, and a liquid inlet pipeline and a liquid return pipeline in communication with the terminal respectively, and the second quick connector is connected to the top end of the liquid return pipeline. The terminal can be a liquid cooling plate. The low-temperature cooling liquid in the liquid inlet pipeline flows through the terminal to cool the heat elements, and the temperature of the cooling liquid rises. The high-temperature cooling liquid is transported to the external liquid cooling pipeline through the liquid return pipeline to realize liquid cooling system water return. The second quick connector is connected to the top end of the liquid return pipeline, so that the gas in the pipeline can be smoothly discharged when the cooling liquid is injected.

[0046] Specifically, the liquid cooling system further comprises a liquid distribution header. The cooling liquid is transported to the liquid distribution header from the liquid cooling pipeline, and then distributed to each terminal by the liquid distribution header. The cooling liquid in the terminal can exchange heat with the equipment. The cooled cooling liquid flows out of the terminal and flows out from the liquid outlet. Such a cycle realizes cooling and temperature reduction of the equipment in the cabinet. When the liquid cooling system starts to inject the cooling liquid, gas-liquid exchange will occur in the main pipeline of the liquid distribution header. In order to discharge the gas remaining in the pipeline and maintain the pressure balance in the pipeline, an exhaust device is arranged at the top end of the liquid return pipeline. After the injection of the cooling liquid is completed, the first quick connector is detached from the second quick connector, and the second quick connector is sealed correspondingly to cut off the cooling liquid in the pipeline. The exhaust device can be arranged at the top of the main liquid return pipeline of the liquid distribution header. When the liquid distribution header starts to inject liquid, it ensures that the gas in the pipeline is normally discharged and ensures that the equipment operates normally.

[0047] Further, the liquid inlet main pipeline and the liquid return main pipeline of the liquid distribution header are arranged in a vertical manner in the liquid cooling cabinet. The liquid inlet main pipeline functions to distribute the low-temperature cooling liquid transported from the external liquid cooling pipeline to each branch pipeline, and the low-temperature cooling liquid is transported to the terminal for heat dissipation of the heat elements, such as the liquid cooling plate for heat dissipation of the server, by the branch pipeline to meet the continuous heat dissipation requirement of the equipment. The liquid return main pipeline functions to collect the high-temperature cooling liquid flowing out of each terminal and transport it to the external liquid cooling pipeline to realize liquid cooling system water return. When the liquid distribution header starts to inject the cooling liquid, the first quick connector and the second quick connector are connected to conduct, thereby realizing the communication between the exhaust valve and the liquid return main pipeline. When the cooling liquid is injected, the gas in the pipeline is smoothly discharged. When the liquid injection of the liquid distribution header is completed, the pipeline is filled with liquid and flows naturally without the need for exhaust. The first quick connector can be directly pulled out, and the self-sealing property of the second quick connector is utilized to close the liquid return main pipeline and cut off the cooling liquid.

[0048] Each embodiment in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between each embodiment can be referred to each other.

[0049] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Therefore, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An exhaust device, characterized in that, include: Exhaust valve (1); The first quick connector (2) is located at the exhaust valve (1); The second quick connector (3) is used to connect to the pipeline to be vented. The first quick connector (2) and the second quick connector (3) are detachably connected. When the first quick connector (2) and the second quick connector (3) are mated, both are open to connect the pipeline to the exhaust valve (1). When 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, characterized in that, One of the first quick connector (2) and the second quick connector (3) has a plug (31) and the other has a socket (21) for insertion of the plug (31). The first quick connector (2) and the second quick connector (3) are mated or disconnected by plugging and unplugging 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 part (22), and the exhaust valve (1) is provided with a fixing part (11). The fixing part (11) cooperates with the connecting part (22) to fix the first quick connector (2) and the exhaust valve (1) in place.

4. The exhaust device according to claim 3, characterized in that, The fixing part (11) includes an external thread at the head end of the exhaust valve (1), and the connecting part (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 also includes a connecting seat (4), the first quick connector (2) is provided with a connecting part (22), the exhaust valve (1) is provided with a fixing part (11), the connecting seat (4) is connected to the connecting part (22) and the fixing part (11) respectively, and the connecting seat (4) has a channel, the channel is connected to the first quick connector (2) and the exhaust valve (1) respectively.

6. The exhaust device according to claim 5, characterized in that, The connecting part (22) includes a first external thread provided on the first quick connector (2), the fixing part (11) includes a second external thread provided on the exhaust valve (1), and the connecting seat (4) is 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 1, characterized in that, The two 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 arranged in a straight line.

9. A liquid cooling system, characterized in that, Includes the exhaust device as described in 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 the heat element and an inlet pipe and a return pipe respectively connected to the terminal, and the second quick connector (3) is connected to the top of the return pipe.

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