Expansion tank and liquid cooling equipment
By introducing a flow guide pipe and a pressure maintaining device into the expansion tank of the liquid cooling equipment, the problem of bacteria growth due to stagnant coolant was solved, enabling continuous flow of coolant and continuous operation of the equipment, and reducing maintenance difficulty.
Patent Information
- Application Number
- CN202422962158.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-11-29
AI Technical Summary
When the coolant in the expansion tank of a liquid cooling system remains stagnant for a long time, bacteria can easily grow, leading to coolant contamination and requiring frequent replacement, which affects the continuity of equipment operation.
Design an expansion tank that circulates coolant through a flow guide and a pressure maintaining device to prevent bacterial growth. This includes the design of the flow guide and the pressure maintaining device, such as an elastic balloon, an elastic diaphragm, or a piston and spring device, to ensure the coolant flows within the expansion tank and maintains pressure balance.
This ensures continuous flow of coolant, preventing bacterial growth and coolant contamination, reducing maintenance difficulty, and guaranteeing the continuous operation of liquid cooling equipment.
Smart Images
Figure CN223636419U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] Embodiments of the present application relate to the technical field of liquid cooling equipment, and particularly relate to an expansion tank and a liquid cooling equipment. BACKGROUND
[0002] The liquid cooling equipment comprises a liquid pipeline, an expansion tank and a cooling structure. The cooling structure is in communication with the liquid pipeline to deliver cooling liquid. The expansion tank is in communication with the liquid pipeline, and the expansion tank stores cooling liquid to maintain the pressure in the liquid pipeline stable. However, the liquid in the expansion tank is in a static state for a long time, which is prone to breed bacteria and pollute the cooling liquid. CONTENT
[0003] Embodiments of the present application provide an expansion tank and a liquid cooling equipment, which can prevent bacteria from breeding and avoid the pollution of the cooling liquid.
[0004] In a first aspect, an embodiment of the present application provides an expansion tank, which comprises a tank body and a flow guide pipe. A pressure maintaining device is arranged in a first cavity surrounded by the tank body, and the pressure maintaining device divides the first cavity into a second cavity and a third cavity. The pressure maintaining device is used to maintain the pressure in the second cavity equal to the pressure in the third cavity. A first opening in communication with the second cavity is arranged on the tank body, and the first opening is used to communicate with a second opening on a pipe wall of a liquid pipeline. A first end of the flow guide pipe is in communication with the second cavity, and a second end of the flow guide pipe is arranged inside the liquid pipeline and located at a pipe opening facing an upstream of the liquid pipeline.
[0005] The second end of the flow guide pipe is arranged inside the liquid pipeline, and the pipe opening at the second end faces the upstream of the liquid pipeline. The liquid flow direction is opposite to the pipe opening orientation, so that a dynamic pressure is generated at the pipe opening, the pressure in the flow guide pipe becomes larger than the pressure in the second cavity, the cooling liquid flows into the second cavity along the flow guide pipe, the cooling liquid in the second cavity becomes more, and the cooling liquid flows back into the liquid pipeline from the first opening, so that the cooling liquid in the expansion tank flows, bacteria breeding is prevented, and the pollution of the cooling liquid is avoided. In addition, the cooling liquid in the expansion tank circulates, so that the cooling liquid can be replaced less frequently, the maintenance difficulty of the expansion tank is reduced, and the continuity of the operation of the liquid cooling equipment is ensured.
[0006] In some embodiments that can include the above-mentioned embodiments, part of the flow guide pipe is located in the first opening and the second opening.
[0007] Part of the flow guide pipe is located in the first opening and the second opening, so that the pressure difference between the cooling liquid flowing into the flow guide pipe and the cooling liquid in the second cavity caused by the energy loss of the cooling liquid flow is avoided, the pressure in the flow guide pipe is ensured to be greater than the pressure in the second cavity, and the cooling liquid in the expansion tank is ensured to flow.
[0008] In some embodiments that can include some of the above-mentioned embodiments, the pressure maintaining device includes an elastic balloon arranged in the first cavity, the elastic balloon encloses the second cavity. The opening of the elastic balloon corresponds to the first opening, so that the cooling liquid in the liquid pipeline can enter the second cavity. When the pressure in the second cavity changes, the elastic balloon deforms, so that the pressure in the second cavity and the pressure in the third cavity reach equilibrium.
[0009] The elastic balloon can avoid the contact between the cooling liquid and the tank wall, thereby avoiding the rusting of the tank wall of the expansion tank and the pollution caused by the contact between the cooling liquid and the tank wall. After the elastic balloon is damaged, a new elastic balloon can be replaced, thereby prolonging the service life of the expansion tank.
[0010] In some embodiments that can include some of the above-mentioned embodiments, the pressure maintaining device includes an elastic diaphragm connected to the inner wall of the tank body to divide the first cavity into the second cavity and the third cavity. When the pressure in the second cavity changes, the elastic diaphragm deforms, so that the pressure in the second cavity and the pressure in the third cavity reach equilibrium.
[0011] The elastic diaphragm is arranged in the first cavity and contacts the tank wall, which is simple in structure and can reduce the processing difficulty and cost of the expansion tank.
[0012] In some embodiments that can include some of the above-mentioned embodiments, the pressure maintaining device includes a piston and a spring device, the piston is arranged in the first cavity, and the piston divides the first cavity into the second cavity and the third cavity. The spring device is connected to the tank body and the piston, the top of the tank body is provided with an opening, and the spring device passes through the opening and is connected to the piston. The spring device is used to control the length of the piston extending into the first cavity.
[0013] The pressure maintaining device includes a piston and a spring device, and the length of the piston extending into the first cavity can be accurately controlled by controlling the spring device, so as to control the size of the second cavity and the third cavity, and then control the pressure in the second cavity and the pressure in the third cavity to reach equilibrium.
[0014] In a second aspect, the embodiments of the present application provide an expansion tank, including a tank body, a pressure maintaining device arranged in a first cavity enclosed by the tank body, and the pressure maintaining device divides the first cavity into a second cavity and a third cavity. The pressure maintaining device is used to keep the pressure in the second cavity as a preset pressure.
[0015] The tank body is provided with a first opening in communication with the second cavity, and the first opening is used to communicate with a second opening on the pipe wall of the liquid pipeline. The tank body is also provided with a third opening in communication with the second cavity, and the third opening is used to communicate with a fourth opening on the pipe wall of the liquid pipeline, and the second opening and the fourth opening are arranged at intervals along the length direction of the liquid pipeline.
[0016] The second opening and the fourth opening are arranged at intervals along the length direction of the liquid pipeline, and the cooling liquid flows in the liquid pipeline and passes through the second opening and the fourth opening in sequence, so that there is a pressure difference between the second opening and the fourth opening, the cooling liquid enters the opening with a larger pressure and flows out of the opening with a smaller pressure, thereby realizing the flow of the cooling liquid in the expansion tank, bacteria are not easy to breed, the maintenance difficulty of the expansion tank is reduced, and the continuity of the operation of the liquid cooling equipment is ensured.
[0017] In some embodiments that can include some of the above embodiments, the second opening is located downstream of the fourth opening.
[0018] The cooling liquid in the liquid pipeline first passes through the fourth opening and then passes through the second opening, the pressure at the fourth opening is greater than the pressure at the second opening, the cooling liquid flows from the fourth opening into the second cavity, passes through the first opening to the second opening, and then returns to the liquid pipeline, thereby realizing the flow of the cooling liquid in the expansion tank, bacteria are prevented from breeding, and the cooling liquid is prevented from being contaminated. In addition, the cooling liquid in the expansion tank circulates, the cooling liquid can be replaced less frequently, thereby reducing the maintenance difficulty of the expansion tank and ensuring the continuity of the operation of the liquid cooling equipment.
[0019] In some embodiments that can include some of the above embodiments, the pressure maintaining device includes an elastic diaphragm, the elastic diaphragm is connected with the inner wall of the tank body to divide the first cavity into the second cavity and the third cavity. When the pressure in the second cavity changes, the elastic diaphragm deforms, so that the pressure in the second cavity and the pressure in the third cavity reach balance.
[0020] The elastic diaphragm is arranged in the first cavity and in contact with the tank wall, which is simple in structure and can reduce the processing difficulty and cost of the expansion tank.
[0021] In some embodiments that can include some of the above embodiments, the pressure maintaining device includes a piston and a spring device, the piston is arranged in the first cavity, the piston divides the first cavity into the second cavity and the third cavity, and the spring device is connected with the tank body and the piston, and is used for controlling the length of the piston extending into the first cavity.
[0022] The pressure maintaining device includes a piston and a spring device, the length of the piston extending into the first cavity can be accurately controlled by controlling the spring device, so as to control the sizes of the second cavity and the third cavity, and then control the pressure in the second cavity and the pressure in the third cavity to reach balance.
[0023] In a third aspect, the embodiments of the present application provide a liquid cooling equipment, which includes a liquid pipeline, a cooling structure and the above-mentioned expansion tank, the cooling structure and the expansion tank are connected with the cooling structure, and the cooling structure is used for cooling a heating device.
[0024] The liquid cooling device provided by the embodiments of the present application comprises the expansion tank in any of the above embodiments, and therefore the two can solve the same technical problem and achieve the same technical effect. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 A structural schematic diagram of the liquid cooling device provided by the embodiments of the present application is shown in the figure.
[0026] Figure 2 A connection schematic of the flow guide pipe provided by the embodiments of the present application is shown in the figure. Figure 1
[0027] Figure 3 A connection mode schematic of the expansion tank and the liquid pipeline provided by the embodiments of the present application is shown in the figure. Figure 1
[0028] Figure 4 A connection schematic of the flow guide pipe provided by the embodiments of the present application is shown in the figure. Figure 2
[0029] Figure 5 A structural schematic of the pressure maintaining device provided by the embodiments of the present application is shown in the figure. Figure 1
[0030] Figure 6 A structural schematic of the pressure maintaining device provided by the embodiments of the present application is shown in the figure. Figure 2
[0031] Figure 7 A connection mode schematic of the expansion tank and the liquid pipeline provided by the embodiments of the present application is shown in the figure. Figure 2
[0032] Figure 8 A connection mode schematic of the expansion tank and the liquid pipeline provided by the embodiments of the present application is shown in the figure. Figure 3
[0033] BRIEF DESCRIPTION OF REFERENCE NUMERALS
[0034] 10: liquid cooling device; 11: liquid pipeline; 12: cooling structure; 13: pressure relief valve; 14: refrigeration device; 20: expansion tank; 21: tank body; 22: first cavity; 22a: second cavity; 22b: third cavity; 23: pressure maintaining device; 231: piston; 232: spring device; 24: flow guide pipe; 31: first opening; 32: second opening; 33: third opening; 34: fourth opening. DETAILED DESCRIPTION
[0035] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings for the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.
[0036] Hereinafter, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include one or more of the features.
[0037] In addition, in the embodiments of the present application, the orientation terms such as "upper", "lower", "left", "right", "horizontal", and "vertical" are defined with respect to the orientation of the components shown in the drawings, and it should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation of the components placed in the drawings.
[0038] In the embodiments of the present application, unless otherwise explicitly specified and limited, the term "connection" should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through an intermediate medium.
[0039] It should be noted that in the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be fixed connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium, or communication inside two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0040] Please refer to Figure 1 The embodiments of the present application provide a liquid cooling device 10, which comprises a liquid pipeline 11, an expansion tank 20 and a cooling structure 12. The cooling structure 12 and the expansion tank 20 are connected with the liquid pipeline 11, and the cooling structure 12 is used for cooling a heat generating device. Cooling liquid is arranged in the liquid pipeline 11, and the cooling structure 12 can be in contact with the heat generating device, so as to realize cooling of the heat generating device.
[0041] Figure 1The middle arrow indicates the flow direction of the cooling liquid, the cooling liquid flows in the liquid pipeline 11, and when passing through the position corresponding to the heat generating device, the heat generating device is taken away, so that the temperature of the heat generating device is reduced, thereby achieving heat dissipation of the heat generating device. The cooling structure 12 is not limited in the embodiment of the application, and the cooling structure 12 can include a liquid cooling plate.
[0042] The liquid cooling device 10 further comprises a refrigeration device 14 connected with the liquid pipeline 11. The temperature of the cooling liquid flowing through the cooling structure 12 is increased, and the refrigeration device 14 can restore the temperature of the cooling liquid to the initial temperature. The cooling liquid can flow through the expansion tank 20 through the liquid pipeline 11 and then flow into the cooling structure 12 again, thereby realizing the recycling of the cooling liquid. The refrigeration device 14 is not limited in the embodiment of the application, and the refrigeration device 14 can include a cooling tower.
[0043] The expansion tank 20 is usually arranged on the liquid pipeline 11 and located upstream of the cooling structure 12. It can be understood that upstream means the side closer to the refrigeration device 14 in the liquid pipeline 11, that is, the expansion tank 20 is closer to the refrigeration device 14 than the cooling structure 12, and the temperature of the cooling liquid flowing through the expansion tank 20 is lower, which can slow down the aging speed of the expansion tank 20.
[0044] In some embodiments, the liquid cooling device 10 further comprises a pressure relief valve 13 which can be automatically opened or closed according to the pressure in the liquid pipeline 11. When the expansion tank 20 fails or the pressure in the liquid pipeline 11 reaches the upper limit of the safety pressure, the pressure relief valve 13 can be automatically opened to discharge the cooling liquid and rapidly reduce the pressure in the liquid pipeline 11, thereby protecting the liquid cooling device 10.
[0045] Please refer to Figure 2 and Figure 3 The expansion tank 20 provided by the embodiment of the application comprises a tank body 21. A pressure maintaining device 23 is arranged in a first cavity 22 surrounded by the tank body 21, and the pressure maintaining device 23 divides the first cavity 22 into a second cavity 22a and a third cavity 22b. The pressure maintaining device 23 is used for maintaining the pressure in the second cavity 22a equal to the pressure in the third cavity 22b. A first opening 31 in communication with the second cavity 22a is arranged on the tank body 21, and the first opening 31 is used for communicating with a second opening 32 on the pipe wall of the liquid pipeline 11.
[0046] The communication mode of the first opening 31 and the second opening 32 is not limited in the embodiment of the application, and the communication of the first opening 31 and the second opening 32 can be realized by a metal hose. One end of the metal hose is connected with the first opening 31, and the other end of the metal hose is connected with the second opening 32.
[0047] The position of the first opening 31 is not limited in the embodiments of the present application. For example, the first opening 31 can be arranged at the bottom of the expansion tank 20 (as shown in Figure 2 ), or the first opening 31 can be arranged on the sidewall of the expansion tank 20 (as shown in Figure 3 ).
[0048] Figure 2 Figure 3 The arrow in the figure indicates the flow direction of the cooling liquid when the pressure in the liquid pipeline 11 is constant. The expansion tank 20 is in communication with the liquid pipeline 11, and the pressure in the second cavity 22a is consistent with the pressure in the liquid pipeline 11. When the pressure in the liquid pipeline 11 increases, the cooling liquid in the liquid pipeline 11 will enter the second cavity 22a, and press the gas in the third cavity 22b, so that the pressure in the third cavity 22b is equal to the pressure in the second cavity 22a (the pressure in the liquid pipeline 11), thereby ensuring the stable operation of the liquid pipeline 11.
[0049] When the pressure in the liquid pipeline 11 decreases, the cooling liquid in the second cavity 22a will enter the liquid pipeline 11, and the volume of the third cavity 22b will increase, so that the pressure in the third cavity 22b is equal to the pressure in the second cavity 22a (the pressure in the liquid pipeline 11), thereby keeping the pressure in the liquid pipeline 11 at a preset pressure, and ensuring the stable operation of the liquid pipeline 11.
[0050] Please refer to Figure 2 , Figure 3 and Figure 4 , the expansion tank 20 further comprises a flow guide pipe 24, the first end of the flow guide pipe 24 is in communication with the second cavity 22a, and the second end of the flow guide pipe 24 is arranged inside the liquid pipeline 11, and the pipe opening at the second end is arranged to face the upstream of the liquid pipeline 11. It can be understood that the upstream refers to the side of the liquid pipeline 11 closer to the refrigeration equipment 14, that is, the pipe opening of the flow guide pipe 24 faces the refrigeration equipment 14. Figure 2 Figure 3 Figure 4 The arrow in the figure indicates the flow direction of the cooling liquid, Figure 2 Figure 3 Figure 4 The upstream in the figures refers to the left side of the liquid pipeline 11. The pipe opening at the second end is arranged to face the upstream of the liquid pipeline 11, that is, the direction of the pipe opening is opposite to the flow direction of the cooling liquid in the liquid pipeline 11.
[0051] The pressure in the liquid pipeline 11 is P, and the cooling liquid has a certain speed when entering the nozzle of the flow guide pipe 24, which generates dynamic pressure P1, so that the pressure in the pipe becomes P+P1, which is greater than the pressure P in the second cavity 22a. Part of the cooling liquid will flow from the flow guide pipe 24 to the second cavity 22a, and the cooling liquid in the second cavity 22a will become more, and flow back into the liquid pipeline 11 through the first opening 31 and the second opening 32, thereby realizing the flow of the cooling liquid in the expansion tank 20.
[0052] It can be understood that in the plane perpendicular to the length direction of the liquid pipeline 11, the cross-sectional area of the nozzle of the flow guide pipe 24 is smaller than that of the liquid pipeline 11, and part of the cooling liquid will flow into the flow guide pipe 24, and the remaining part of the cooling liquid will continue to flow normally along the liquid pipeline 11.
[0053] The second end of the flow guide pipe 24 is arranged inside the liquid pipeline 11, and the nozzle at the second end faces the upstream of the liquid pipeline 11. The liquid flow direction is opposite to the nozzle orientation, so that the dynamic pressure is generated at the nozzle, the pressure in the flow guide pipe 24 becomes larger than the pressure in the second cavity 22a, so that the cooling liquid flows into the second cavity 22a along the flow guide pipe 24, the cooling liquid in the second cavity 22a becomes more, and flows back into the liquid pipeline 11 through the first opening 31 and the second opening 32, thereby realizing the flow of the cooling liquid in the expansion tank 20, which can prevent the breeding of bacteria and avoid pollution of the cooling liquid.
[0054] In addition, in the related art, when the cooling liquid needs to be replaced, the liquid cooling device 10 needs to be stopped and the expansion tank 20 needs to be disassembled. The circulation of the cooling liquid in the expansion tank 20 in the embodiment can avoid frequent replacement of the cooling liquid, thereby reducing the maintenance difficulty of the expansion tank 20 and ensuring the continuity of the operation of the liquid cooling device 10. Figure 1
[0055] Figure 4 In some embodiments, the flow guide pipe 24 is arranged outside the expansion tank 20 and connected to the side wall of the expansion tank 20. The pressure in the flow guide pipe 24 is greater than the pressure in the second cavity 22a, and part of the cooling liquid flows from the flow guide pipe 24 to the second cavity 22a, and the cooling liquid in the second cavity 22a becomes more, and flows back into the liquid pipeline 11 through the first opening 31 and the second opening 32, thereby realizing the flow of the cooling liquid in the expansion tank 20.
[0056] Please refer to Figure 5 In some embodiments, the partial flow guide 24 is located in the first opening 31 and the second opening 32. It can be understood that the cooling liquid will have energy loss during the flow in the liquid pipeline 11, so that the pressure of the cooling liquid will decrease when the cooling liquid flows. The partial flow guide 24 is located in the first opening 31 and the second opening 32, and the flow guide 24 is located in the metal hose connecting the first opening 31 and the second opening 32, so that the pressure difference between the cooling liquid flowing into the flow guide 24 and the cooling liquid in the second cavity 22a caused by the energy loss of the cooling liquid flow can be avoided, the pressure in the flow guide 24 is ensured to be greater than the pressure in the second cavity 22a, and the flow of the cooling liquid in the expansion tank 20 is ensured.
[0057] With reference to the foregoing Figure 5 In the above embodiments, the pressure maintaining device 23 includes an elastic balloon arranged in the first cavity 22, and the elastic balloon surrounds the second cavity 22a. The opening of the elastic balloon corresponds to the first opening 31, so that the cooling liquid in the liquid pipeline 11 can enter the second cavity 22a. When the pressure in the second cavity 22a changes, the elastic balloon deforms, so that the pressure in the second cavity 22a and the pressure in the third cavity 22b are balanced.
[0058] The embodiments of the present application do not limit the connection mode of the elastic balloon and the first opening 31. For example, a flange plate can be used to connect the elastic balloon and the first opening 31, so that the rust problem caused by the welding process can be avoided.
[0059] The elastic balloon can avoid the contact between the cooling liquid and the tank wall, so that the rust problem of the tank wall of the expansion tank 20 and the pollution problem caused by the contact between the cooling liquid and the tank wall are avoided. After the elastic balloon is damaged, a new elastic balloon can be replaced, so that the service life of the expansion tank 20 is improved.
[0060] With reference to the foregoing Figure 4 In some embodiments, the pressure maintaining device 23 includes an elastic diaphragm connected to the inner wall of the tank body 21 to divide the first cavity 22 into the second cavity 22a and the third cavity 22b. When the pressure in the second cavity 22a changes, the elastic diaphragm deforms, so that the pressure in the second cavity 22a and the pressure in the third cavity 22b are balanced.
[0061] The elastic diaphragm is arranged in the first cavity 22 and contacts the tank wall, so that the structure is simple, and the processing difficulty and the processing cost of the expansion tank 20 can be reduced.
[0062] With reference to the foregoing Figure 6In some embodiments, the pressure maintaining device 23 comprises a piston 231 and a spring device 232. The piston 231 is arranged in the first cavity 22 and separates the first cavity 22 into a second cavity 22a and a third cavity 22b. The spring device 232 is connected with the tank 21 and the piston 231. The tank 21 is provided with an opening at the top, and the spring device 232 passes through the opening and is connected with the piston 231. The spring device 232 is used to control the length of the piston 231 extending into the first cavity 22.
[0063] When the pressure in the second cavity 22a increases, the spring device 232 controls the piston 231 to rise, so that the volume of the second cavity 22a increases, and the pressure in the second cavity 22a and the pressure in the third cavity 22b reach equilibrium. When the pressure in the second cavity 22a decreases, the spring device 232 controls the piston 231 to lower, so that the volume of the second cavity 22a decreases, and the pressure in the second cavity 22a and the pressure in the third cavity 22b reach equilibrium.
[0064] The pressure maintaining device 23 comprises the piston 231 and the spring device 232. By controlling the spring device 232, the length of the piston 231 extending into the first cavity 22 can be accurately controlled, so that the sizes of the second cavity 22a and the third cavity 22b are controlled, and the pressure in the second cavity 22a and the pressure in the third cavity 22b reach equilibrium.
[0065] The spring device 232 comprises a spring. When the pressure in the second cavity 22a increases, the spring is compressed, which can provide a certain amount of coolant for the second cavity 22a, so that the pressure in the second cavity 22a cannot change too fast, and the spring device 232 cannot react in time, so that the liquid pipeline 11 cannot be buffered and broken, thereby affecting the normal operation of the liquid cooling device 10. Figure 1
[0066] Please refer to Figure 7 and Figure 8 In some implementations, the expansion tank 20 provided by the present application comprises a tank 21, and a pressure maintaining device 23 arranged in a first cavity 22 surrounded by the tank 21. The pressure maintaining device 23 separates the first cavity 22 into a second cavity 22a and a third cavity 22b. The pressure maintaining device 23 is used to maintain the pressure in the second cavity 22a equal to the pressure in the third cavity 22b.
[0067] The tank body 21 is provided with a first opening 31 in communication with the second cavity 22a, and the first opening 31 is used to communicate with a second opening 32 on the pipe wall of the liquid pipeline 11. The tank body 21 is also provided with a third opening 33 in communication with the second cavity 22a, and the third opening 33 is used to communicate with a fourth opening 34 on the pipe wall of the liquid pipeline 11. The second opening 32 and the fourth opening 34 are arranged in the length direction of the liquid pipeline 11.
[0068] The position of the first opening 31 corresponds to the position of the second opening 32, and the position of the third opening 33 corresponds to the position of the fourth opening 34. For example, when the second opening 32 is located upstream of the fourth opening 34, the first opening 31 is arranged on the side wall of the expansion tank 20 close to the cooling liquid source (the left side wall of the expansion tank 20), and the third opening 33 is arranged on the side wall of the expansion tank 20 away from the cooling liquid source (the right side wall of the expansion tank 20). Figure 8 Figure 8 When the second opening 32 is located downstream of the fourth opening 34, the first opening 31 is arranged on the side wall of the expansion tank 20 away from the cooling liquid source (the right side wall of the expansion tank 20), and the third opening 33 is arranged on the side wall of the expansion tank 20 close to the cooling liquid source (the left side wall of the expansion tank 20).
[0069] When the second opening 32 is located downstream of the fourth opening 34, the first opening 31 is arranged on the side wall of the expansion tank 20 away from the cooling liquid source (the right side wall of the expansion tank 20), and the third opening 33 is arranged on the side wall of the expansion tank 20 close to the cooling liquid source (the left side wall of the expansion tank 20). Figure 7 Figure 7
[0070] The second opening 32 and the fourth opening 34 are arranged in the length direction of the liquid pipeline 11, that is, the cooling liquid flows in the liquid pipeline 11 and passes through the second opening 32 and the fourth opening 34 in sequence, so that there is a pressure difference between the second opening 32 and the fourth opening 34. Part of the cooling liquid enters the opening with a larger pressure and flows out of the opening with a smaller pressure, so as to realize the flow of the cooling liquid in the expansion tank 20, prevent the breeding of bacteria, reduce the maintenance difficulty of the expansion tank 20, and ensure the continuity of the operation of the liquid cooling equipment 10. Figure 1
[0071] It can be understood that the pressure difference between the second opening 32 and the fourth opening 34 is small, part of the cooling liquid enters the opening with a larger pressure and flows out of the opening with a smaller pressure, and the remaining part of the cooling liquid does not pass through the expansion tank 20 and flows in the liquid pipeline 11.
[0072] Continuing to refer to Figure 8 In the above embodiment, the second cavity 22a is located at the bottom of the third cavity 22b, the first opening 31 is arranged at the bottom of the tank body 21, the third opening 33 is arranged on the side wall adjacent to the bottom of the tank body 21, and the second opening 32 is located upstream of the fourth opening 34.
[0073] The second opening 32 is located upstream of the fourth opening 34, and the coolant in the liquid pipeline 11 flows through the second opening 32 first and then through the fourth opening 34, that is, the pressure at the second opening 32 is greater than the pressure at the fourth opening 34. The coolant flows into the second cavity 22a from the second opening 32, flows to the fourth opening 34 through the third opening 33, and then returns to the liquid pipeline 11.
[0074] With reference back to Figure 7 In some embodiments, the second opening 32 is located downstream of the fourth opening 34. The coolant in the liquid pipeline 11 flows through the fourth opening 34 first and then through the second opening 32, and the pressure at the fourth opening 34 is greater than the pressure at the second opening 32. The coolant flows into the second cavity 22a from the fourth opening 34, flows to the second opening 32 through the first opening 31, and then returns to the liquid pipeline 11, so that the flow of the coolant in the expansion tank 20 can prevent the breeding of bacteria and avoid the pollution of the coolant. In addition, the circulation of the coolant in the expansion tank 20 can avoid frequent replacement of the coolant, thereby reducing the maintenance difficulty of the expansion tank 20 and ensuring the continuity of the operation of the liquid cooling device 10. Figure 1 With reference back to
[0075] With reference back to Figure 5 In the above embodiments, the pressure maintaining device 23 includes an elastic diaphragm, which is connected to the inner wall of the tank body 21 to divide the first cavity 22 into the second cavity 22a and the third cavity 22b. When the pressure in the second cavity 22a changes, the elastic diaphragm deforms, so that the pressure in the second cavity 22a and the pressure in the third cavity 22b reach equilibrium.
[0076] The elastic diaphragm is arranged in the first cavity 22 and in contact with the tank wall, which has a simple structure and can reduce the processing difficulty and cost of the expansion tank 20.
[0077] With reference back to Figure 7 and Figure 8 In some embodiments, the pressure maintaining device 23 includes a piston 231 and a spring device 232. The piston 231 is arranged in the first cavity 22 and divides the first cavity 22 into the second cavity 22a and the third cavity 22b. The spring device 232 is connected to the tank body 21 and the piston 231, and is used to control the length of the piston 231 extending into the first cavity 22.
[0078] When the pressure in the second cavity 22a becomes larger, the spring device 232 controls the piston 231 to rise, so that the volume of the second cavity 22a increases, so that the pressure in the second cavity 22a and the pressure in the third cavity 22b reach equilibrium. When the pressure in the second cavity 22a becomes smaller, the spring device 232 controls the piston 231 to lower, so that the volume of the second cavity 22a decreases, so that the pressure in the second cavity 22a and the pressure in the third cavity 22b reach equilibrium.
[0079] The pressure maintaining device 23 comprises a piston 231 and a spring device 232, by controlling the spring device 232, the length of the piston 231 extending into the first cavity 22 can be accurately controlled, so that the size of the second cavity 22a and the third cavity 22b is controlled, and then the pressure in the second cavity 22a and the pressure in the third cavity 22b reach equilibrium.
[0080] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. An inflation tank characterized by, The application relates to an expansion tank, comprising: a tank body, a pressure maintaining device arranged in a first cavity formed by the tank body, the pressure maintaining device separating the first cavity into a second cavity and a third cavity, the pressure maintaining device being used for maintaining the pressure in the second cavity equal to the pressure in the third cavity; a first opening arranged on the tank body and communicating with the second cavity, the first opening being used for communicating with a second opening on a pipe wall of a liquid pipeline; a flow guide pipe, a first end of the flow guide pipe communicating with the second cavity, a second end of the flow guide pipe being arranged inside the liquid pipeline, and a pipe opening at the second end facing an upstream of the liquid pipeline.
2. The pot as defined in claim 1, wherein Part of the flow guide pipe is arranged in the first opening and the second opening.
3. An expansion tank according to claim 1 or 2, c h a r a c t e r i s e d in that The pressure maintaining device comprises an elastic balloon arranged in the tank body, and the elastic balloon forms the second cavity.
4. An expansion tank according to claim 1 or 2, characterised in that The pressure maintaining device comprises an elastic diaphragm connected with an inner wall of the tank body, so as to separate the first cavity into the second cavity and the third cavity.
5. The pot according to claim 1 or 2, characterized in that The pressure maintaining device comprises a piston arranged in the first cavity, the piston separating the first cavity into the second cavity and the third cavity, and a spring device connected with the tank body and the piston, the spring device being used for controlling the length of the piston extending into the first cavity.
6. An expansion tank characterized in that, The application relates to an expansion tank, comprising: a tank body, a pressure maintaining device arranged in a first cavity formed by the tank body, the pressure maintaining device separating the first cavity into a second cavity and a third cavity, the pressure maintaining device being used for maintaining the pressure in the second cavity equal to the pressure in the third cavity; a first opening arranged on the tank body and communicating with the second cavity, the first opening being used for communicating with a second opening on a pipe wall of a liquid pipeline; a third opening arranged on the tank body and communicating with the second cavity, the third opening being used for communicating with a fourth opening on the pipe wall of the liquid pipeline, and the second opening and the fourth opening being arranged at intervals along the length direction of the liquid pipeline.
7. The tank according to claim 6, characterized in that The first cavity is arranged at the bottom of the second cavity, the first opening is arranged at the bottom of the tank body, the third opening is arranged on the tank wall adjacent to the bottom of the tank body, and the second opening is arranged upstream of the fourth opening.
8. An expansion tank according to claim 6 or 7, characterised in that The pressure maintaining device comprises an elastic diaphragm connected with an inner wall of the tank body, so as to separate the first cavity into the second cavity and the third cavity.
9. An expansion tank according to claim 6 or 7, characterised in that The pressure maintaining device comprises a piston arranged in the first cavity, the piston separating the first cavity into the second cavity and the third cavity, and a spring device connected with the tank body and the piston, the spring device being used for controlling the length of the piston extending into the first cavity.
10. A liquid cooling device, characterized by, The application relates to an expansion tank, comprising: a tank body, a pressure maintaining device arranged in a first cavity formed by the tank body, the pressure maintaining device separating the first cavity into a second cavity and a third cavity, the pressure maintaining device being used for maintaining the pressure in the second cavity equal to the pressure in the third cavity; a first opening arranged on the tank body and communicating with the second cavity, the first opening being used for communicating with a second opening on a pipe wall of a liquid pipeline; a third opening arranged on the tank body and communicating with the second cavity, the third opening being used for communicating with a fourth opening on the pipe wall of the liquid pipeline, and the second opening and the fourth opening being arranged at intervals along the length direction of the liquid pipeline. The first cavity is arranged at the bottom of the second cavity, the first opening is arranged at the bottom of the tank body, the third opening is arranged on the tank wall adjacent to the bottom of the tank body, and the second opening is arranged upstream of the fourth opening. The pressure maintaining device comprises an elastic diaphragm connected with an inner wall of the tank body, so as to separate the first cavity into the second cavity and the third cavity. The pressure maintaining device comprises a piston arranged in the first cavity, the piston separating the first cavity into the second cavity and the third cavity, and a spring device connected with the tank body and the piston, the spring device being used for controlling the length of the piston extending into the first cavity. The application relates to an expansion tank, comprising: a tank body, a pressure maintaining device arranged in a first cavity formed by the tank body, the pressure maintaining device separating the first cavity into a second cavity and a third cavity, the pressure maintaining device being used for maintaining the pressure in the second cavity equal to the pressure in the third cavity; a first opening arranged on the tank body and communicating with the second cavity, the first opening being used for communicating with a second opening on a pipe wall of a liquid pipeline; a third opening arranged on the tank body and communicating with the second cavity, the third opening being used for communicating with a fourth opening on the pipe wall of the liquid pipeline, and the second opening and the fourth opening being arranged at intervals along the length direction of the liquid pipeline. The first cavity is arranged at the bottom of the second cavity, the first opening is arranged at the bottom of the tank body, the third opening is arranged on the tank wall adjacent to the bottom of the tank body, and the second opening is arranged upstream of the fourth opening. The pressure maintaining device comprises an elastic diaphragm connected with an inner wall of the tank body, so as to separate the first cavity into the second cavity and the third cavity. The pressure maintaining device comprises a piston arranged in the first cavity, the piston separating the first cavity into the second cavity and the third cavity, and a spring device connected with the tank body and the piston, the spring device being used for controlling the length of the piston extending into the first cavity. The application relates to an expansion tank, comprising: a tank body, a pressure maintaining device arranged in a first cavity formed by the tank body, the pressure maintaining device separating the first cavity into a second cavity and a third cavity, the pressure maintaining device being used for maintaining the pressure in the second cavity equal to the pressure in the third cavity; a first opening arranged on the tank body and communicating with the second cavity, the first opening being used for communicating with a second opening on a pipe wall of a liquid pipeline; a third opening arranged on the tank body and communicating with the second cavity, the third opening being used for communicating with a fourth opening on the pipe wall of the liquid pipeline, and the second opening and the fourth opening being arranged at intervals along the length direction of the liquid pipeline. The first cavity is arranged at the bottom of the second cavity, the first opening is arranged at the bottom of the tank body, the third opening is arranged on the tank wall adjacent to the bottom of the tank body, and the second opening is arranged upstream of the fourth opening. The pressure maintaining device comprises an elastic diaphragm connected with an inner wall of the tank body, so as to separate the first cavity into the second cavity and the third cavity. The pressure maintaining device comprises a piston arranged in the first cavity, the piston separating the first cavity into the second cavity and the third cavity, and a spring device connected with the tank body and the piston, the spring device being used for controlling the length of the piston extending into the first cavity. The application relates to an expansion tank, comprising: a tank body, a pressure maintaining device arranged in a first cavity formed by the tank body, the pressure maintaining device separating the first cavity into a second cavity and a third cavity, the pressure maintaining device being used for maintaining the pressure in the second cavity equal to the pressure in the third cavity; a first opening arranged on the tank body and communicating with the second cavity, the first opening being used for communicating with a second opening on a pipe wall of a liquid pipeline; a third opening arranged on the tank body and communicating with the second cavity, the third opening being used for communicating with a fourth opening on the pipe wall of the liquid pipeline, and the second opening and the fourth opening being arranged at intervals along the length direction of the liquid pipeline. The first cavity is arranged at the bottom of the second cavity, the first opening is arranged at the bottom of the tank body, the third opening is arranged on the tank wall adjacent to the bottom of the tank body, and the second opening is arranged upstream of the fourth opening. The pressure maintaining device comprises an elastic diaphragm connected with an inner wall of the tank body, so as to separate the first cavity into the second cavity and the third cavity. The pressure maintaining device comprises a piston arranged in the first cavity, the piston separating the first cavity into the second cavity and the third cavity, and a spring device connected with the tank body and the piston, the spring device being used for controlling the length of the piston extending into the first cavity. The application relates to an expansion tank, comprising: a tank body, a pressure maintaining device arranged in a first cavity formed by the tank body, the pressure maintaining device separating the first cavity into a second cavity and a third cavity, the pressure maintaining device being used for maintaining the pressure in the second cavity equal to the pressure in the third cavity; a first opening arranged on the tank body and communicating with the second cavity, the first opening being used for communicating with a second opening on a pipe wall of a liquid pipeline; a third opening arranged on the tank body and communicating with the second cavity, the third opening being used for communicating with a fourth opening on the pipe wall of the liquid pipeline, and the second opening and the fourth opening being arranged at intervals along the length direction of the liquid pipeline. The first cavity is arranged at the bottom of the second cavity, the first opening is arranged at the bottom of the tank body, the third opening is arranged on the tank wall adjacent to the bottom of the tank body,