Water hammer eliminating and pressure stabilizing device for water cooling system

Abstract

The invention relates to the technical field of industrial cooling, in particular to a water hammer eliminating pressure stabilizing device for a water cooling system, which comprises a gas-liquid buffer pressure stabilizing tank, an inert gas pressure stabilizing system and a communicated piston balance system. A low-pressure buffer tank and a high-pressure buffer tank are arranged at an inlet and an outlet of a circulating water pump respectively, a communicated piston balance system is arranged, and a gas-liquid buffer mode and a piston balance mode are combined, so that the vibration amplitude of a water hammer phenomenon caused in the starting, stopping and switching processes of the circulating water pump is reduced by more than 80%; and the pressure fluctuation duration is reduced by more than 85%, the effect of inhibiting the water hammer phenomenon is remarkable, and safe and stable operation of pipeline equipment and far-end precision equipment is guaranteed.

Description

Technical Field

[0001] This application belongs to the technical field of industrial cooling, and particularly relates to a water hammer elimination and pressure stabilization device for a water cooling system. Background Art

[0002] Due to possible problems such as failures during the continuous operation of the equipment in the water cooling system, redundant design is usually adopted in industry, that is, multiple water cooling system circulation pumps are used, and the redundant circulation pumps are in a standby state and can be temporarily started and operated when abnormal problems occur. During operation, in order to improve the reliability of the equipment, the circulation pumps need to be switched and operated every one or two weeks, that is, the operating circulation pump stops and becomes standby, and the standby circulation pump starts to be put into operation. During the switching, starting and stopping of the circulation pump, due to the sudden change in the flow velocity of the cooling water in the pipeline, water flow impact will be generated, that is, the water hammer phenomenon, resulting in the water pump and pipeline being shocked by the water flow shock wave. In severe cases, the water pump and pipeline may burst, causing the water cooling system to fail.

[0003] Therefore, how to reduce or eliminate the impact of the water hammer phenomenon on the water cooling system is crucial for improving the stability and reliability of the system operation. At present, there are already related products such as water hammer eliminators on the market, but they cannot meet the use requirements when facing special scenarios such as large flow rate, high pressure, and high requirements for cooling water quality.

[0004] The patent with the application number CN202421650076.4 discloses a water hammer prevention device based on bypass transformation, which includes a needle valve body and an adjusting part. The needle valve body adopts a "T" - shaped structure, and a placement groove and an adjusting hole are arranged inside the needle valve body. The adjusting part passes through the adjusting hole and extends into the placement groove inside the needle valve body; the needle valve body is provided with a water inlet and a water outlet, and both the water inlet and the water outlet are connected with threaded pipes. However, when facing a large - flow water pipeline, this patent will affect the normal flow of water.

[0005] The patent with the application number CN202421242971.2 discloses a water hammer prevention device for a water supply device, specifically a buffer device is connected beside the pipeline. A piston is arranged inside the buffer device, and the buffer is reciprocally adjusted through the change of pressure. A damper is also arranged on the pipeline to cooperate in reducing the impact of water hammer. However, this patent cannot meet the use requirements when facing relatively high pressure and high water quality requirements. Summary of the Invention

[0006] The technical problem to be solved by the present invention is: to solve one of the problems of prominent water hammer phenomenon and severe vibration of equipment and pipelines during the start - stop or switching of the existing circulation water pumps, so as to provide a water hammer elimination and pressure stabilization device for a water cooling system.

[0007] The technical solution adopted by the present invention to solve its technical problems is:

[0008] A water hammer elimination and pressure stabilizing device for a water cooling system, comprising:

[0009] A high-pressure buffer pressure stabilizing tank, which is configured to be connected to the outlet pipeline of the water cooling system, and the high-pressure buffer pressure stabilizing tank has a drain port for discharging circulating water;

[0010] A low-pressure buffer pressure stabilizing tank, which is configured to be connected to the inlet pipeline of the water cooling system, and the low-pressure buffer pressure stabilizing tank has a water inlet for introducing circulating water;

[0011] [[ID=E]]A first pressure stabilizing mechanism, comprising a gas cylinder and a first gas distribution device, the gas cylinder is connected to the high-pressure buffer pressure stabilizing tank through the first gas distribution device, and is used for filling gas into the high-pressure buffer pressure stabilizing tank to keep the air pressure in the high-pressure buffer pressure stabilizing tank at a first preset value;

[0012] A second pressure stabilizing mechanism, comprising a gas cylinder and a second gas distribution device, the gas cylinder is connected to the low-pressure buffer pressure stabilizing tank through the second gas distribution device, and is used for filling gas into the low-pressure buffer pressure stabilizing tank to keep the air pressure in the low-pressure buffer pressure stabilizing tank at a second preset value.

[0013] In an optional embodiment, the water hammer elimination and pressure stabilizing device for the water cooling system further comprises:

[0014] A connecting pipeline, both ends of which are respectively communicated with the low-pressure buffer pressure stabilizing tank and the high-pressure buffer pressure stabilizing tank;

[0015] A piston, which is installed in the connecting pipeline and is used for isolating the fluid in the connecting pipeline;

[0016] An elastic support body, which is installed in the connecting pipeline and is connected to the piston, and is used for providing an elastic force for the piston to move away from a preset position.

[0017] In an optional embodiment, the connecting pipeline comprises: a pipeline main body and a detachable section, the detachable section is detachably connected to the middle of the pipeline main body, and both ends of the detachable section are communicated with the pipeline main body;

[0018] The piston and the elastic support body are installed in the detachable section.

[0019] In an optional embodiment, both ends of the detachable section have flange plates, the piston is located in the middle of the detachable section, two elastic support bodies are respectively arranged on both sides of the piston, and both ends of the elastic support body respectively abut against the inner side of the flange plate and the end of the piston;

[0020] The end of the pipe body is provided with the flange corresponding to the detachable section.

[0021] In an alternative embodiment, the water hammer elimination and pressure stabilizing device for the water cooling system further includes a liquid level stabilizing component, which is installed in the high-pressure buffer pressure stabilizing tank and the low-pressure buffer pressure stabilizing tank; the liquid level stabilizing component penetrates through the gas-liquid two-phase interface in the high-pressure buffer pressure stabilizing tank and the low-pressure buffer pressure stabilizing tank.

[0022] In an alternative embodiment, the liquid level stabilizing component includes a plurality of columns arranged perpendicular to the interface.

[0023] In an alternative embodiment, the water hammer elimination and pressure stabilizing device for the water cooling system further includes a liquid level sensor, which is connected to the high-pressure buffer pressure stabilizing tank and is used for measuring and monitoring the liquid level in the high-pressure buffer pressure stabilizing tank.

[0024] In an alternative embodiment, both the first gas distribution device and the second gas distribution device include: a pressure reducing valve, a pressure stabilizing valve, and a solenoid valve. The pressure reducing valve is used to reduce the pressure of the direct gas supply from the gas cylinder, the pressure stabilizing valve is used to maintain the constant pressure after the pressure reduction by the pressure reducing valve, and the solenoid valve is used to conduct or cut off the gas supply to the first gas distribution device or the second gas distribution device.

[0025] In an alternative embodiment, both the first gas distribution device and the second gas distribution device include:

[0026] A pressure monitoring and control device, connected to the solenoid valve, for controlling the conduction or cut-off of the solenoid valve;

[0027] An automatic exhaust valve, connected to the tops of the high-pressure buffer pressure stabilizing tank and the low-pressure buffer pressure stabilizing tank through a pipeline, and used for discharging the gas in the high-pressure buffer pressure stabilizing tank and the low-pressure buffer pressure stabilizing tank when the automatic exhaust valve is opened.

[0028] In an alternative embodiment, the gas cylinder is filled with an inert gas or nitrogen.

[0029] The beneficial effects of the present invention are:

[0030] It is connected to the outlet pipe of the water cooling system through a high-pressure buffer and pressure stabilizing tank, and the low-pressure buffer and pressure stabilizing tank is connected to the inlet pipe of the water cooling system, so that the water inlet and drainage of the water cooling system can obtain a buffering effect. Among them, under the action of the first pressure stabilizing mechanism and the second pressure stabilizing mechanism, the air pressure in the high-pressure buffer and pressure stabilizing tank remains at a first preset value, and the air pressure in the low-pressure buffer and pressure stabilizing tank remains at a second preset value. After filling the buffer and pressure stabilizing tank with gas at a stable pressure, when the circulation pump of the water cooling system starts and stops, the gas in the two buffer and pressure stabilizing tanks can significantly improve the water flow fluctuation amplitude, fluctuation duration and vibration noise in the water cooling system, and fully relieve the negative impact of the water hammer phenomenon. Description of the Drawings

[0031] The technical solution of the present application will be further described below in conjunction with the drawings and embodiments.

[0032] Figure 1 It is a schematic structural diagram of a water hammer elimination and pressure stabilizing device for a water cooling system according to an embodiment of the present application;

[0033] Figure 2 It is a schematic diagram of the structural composition of the connecting pipe according to an embodiment of the present application;

[0034] Figure 3 It is a schematic diagram of the state of the water hammer elimination and pressure stabilizing device for a water cooling system according to an embodiment of the present application when the water cooling system is shut down.

[0035] The reference numerals in the drawings are:

[0036] 1. Low-pressure buffer and pressure stabilizing tank; 101. Water inlet; 102. Interface; 103. Column; 10. Liquid level stabilizing component; 11. Liquid level sensor; 12. Outlet pipe; 14. Circulation pump; 16. Inlet pipe;

[0037] 2. Automatic exhaust valve; 3. Pressure monitoring and control device; 4. Solenoid valve; 5. Pressure stabilizing valve; 6. Pressure reducing valve; 7. Gas cylinder valve; 8. Gas cylinder;

[0038] 9. High-pressure buffer and pressure stabilizing tank; 901. Drainage port;

[0039] 13. Piston; 15. Elastic support;

[0040] 18. Connecting pipe; 180. Pipe body; 181. Detachable section; 182. Flange. Detailed Embodiments

[0041] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0042] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0043] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood through specific situations.

[0044] The technical solution of the present application will be described in detail below with reference to the drawings and in combination with embodiments.

[0045] Embodiment 1

[0046] This embodiment provides a water hammer elimination and pressure stabilization device for a water cooling system, as Figure 1 shown, including: a high-pressure buffer and pressure stabilization tank 9, a low-pressure buffer and pressure stabilization tank 1, a first pressure stabilization mechanism, and a second pressure stabilization mechanism.

[0047] The high-pressure buffer and pressure stabilization tank 9 is configured to be connected to the outlet pipe 12 of the water cooling system, and the high-pressure buffer and pressure stabilization tank 9 has a drain port 901 for discharging the circulating water. That is, the drainage of the water cooling system in this embodiment does not directly discharge from the outlet pipe 12, but needs to first enter the high-pressure buffer and pressure stabilization tank 9 and then discharge through the drain port 901.

[0048] The low-pressure buffer and pressure stabilization tank 1 is configured to be connected to the inlet pipe 16 of the water cooling system, and the low-pressure buffer and pressure stabilization tank 1 has a water inlet 101 for introducing the circulating water. That is, the water inlet of the water cooling system in this embodiment does not directly introduce from the inlet pipe 16, but needs to first enter the low-pressure buffer and pressure stabilization tank 1 through the water inlet 101 and then introduce into the inlet pipe 16 through the low-pressure buffer and pressure stabilization tank 1.

[0049] The first pressure stabilizing mechanism includes a gas cylinder 8 and a first gas distribution device. The gas cylinder 8 is connected to a high-pressure buffer pressure stabilizing tank 9 through the first gas distribution device, and is used to fill gas into the high-pressure buffer pressure stabilizing tank 9 so that the air pressure in the high-pressure buffer pressure stabilizing tank 9 remains at a first preset value.

[0050] The second pressure stabilizing mechanism includes a gas cylinder 8 and a second gas distribution device. The gas cylinder 8 is connected to a low-pressure buffer pressure stabilizing tank 1 through the second gas distribution device, and is used to fill gas into the low-pressure buffer pressure stabilizing tank 1 so that the air pressure in the low-pressure buffer pressure stabilizing tank 1 remains at a second preset value.

[0051] The water hammer elimination and pressure stabilizing device for the water cooling system provided in this embodiment is connected to the outlet pipe 12 of the water cooling system through the high-pressure buffer pressure stabilizing tank 9, and the low-pressure buffer pressure stabilizing tank 1 is connected to the inlet pipe 16 of the water cooling system, so that the water inlet and drainage of the water cooling system can obtain a buffering effect. Among them, under the action of the first pressure stabilizing mechanism and the second pressure stabilizing mechanism, the air pressure in the high-pressure buffer pressure stabilizing tank 9 remains at the first preset value, and the air pressure in the low-pressure buffer pressure stabilizing tank 1 remains at the second preset value. After filling the buffer pressure stabilizing tank with gas at a stable pressure, when the circulation pump of the water cooling system starts and stops, the gas in the two buffer pressure stabilizing tanks can buffer the water flow in inertial motion, significantly improving the amplitude of water flow fluctuation, the duration of fluctuation, and the vibration noise in the water cooling system, and fully alleviating the negative impact of the water hammer phenomenon. Avoid damage to pipelines and equipment caused by high-frequency reciprocating fluctuations in the pressure inside the water pipes.

[0052] In an optional embodiment, as Figure 1 shown, the water hammer elimination and pressure stabilizing device for the water cooling system further includes: a connecting pipe 18, a piston 13, and an elastic support 15. Both ends of the connecting pipe 18 are respectively communicated with the low-pressure buffer pressure stabilizing tank 1 and the high-pressure buffer pressure stabilizing tank 9. The piston 13 is installed in the connecting pipe 18 and is used to isolate the fluid in the connecting pipe 18. The elastic support 15 is installed in the connecting pipe 18 and is connected to the piston 13, and is used to provide an elastic force for the piston 13 to move away from the preset position. In this embodiment, the low-pressure buffer pressure stabilizing tank 1 and the high-pressure buffer pressure stabilizing tank 9 are connected into a whole through the connecting pipe 18, so that their internal spaces are combined. At the same time, the piston 13 is used to separate their internal spaces to prevent the fluids in them from communicating with each other. While realizing the sharing of space, ensure that their original functions are not affected. The elastic support 15 is used to apply an elastic force in a specific direction to the piston 13.

[0053] Its working principle is: when the water cooling system is operating normally, as Figure 1As shown, the piston 13 is in a preset position. At this time, the pressure on the right side of the piston 13 (the side close to the high-pressure buffer and pressure stabilizing tank 9) is greater than the pressure on the left side (the side close to the low-pressure buffer and pressure stabilizing tank 1). Therefore, the piston 13 is subjected to a leftward thrust, and the elastic support 15 provides a rightward elastic force to keep the piston 13 in an equilibrium state. When the circulation pump 14 of the water cooling system stops running, as Figure 3 shown, the pressure on the right side of the piston 13 decreases instantaneously. Under the action of the elastic force of the elastic support 15, the piston 13 moves quickly to the right, compressing the internal space of the high-pressure buffer and pressure stabilizing tank 9, which can slow down the speed of pressure reduction in the high-pressure buffer and pressure stabilizing tank 9 and achieve the mitigation of the water hammer effect.

[0054] In an alternative embodiment, as Figure 1 、 Figure 2 shown, the connecting pipe 18 includes: a pipe body 180 and a detachable section 181. The detachable section 181 is detachably connected to the middle of the pipe body 180, and both ends of the detachable section 181 communicate with the pipe body 180. The piston 13 and the elastic support 15 are installed inside the detachable section 181. In this embodiment, by installing the piston 13 and the elastic support 15 inside the detachable section 181, it is convenient to maintain and replace the piston 13 and the elastic support 15, and prevent the deterioration of the use effect after the components age.

[0055] In an alternative embodiment, the elastic support 15 is a spring, and the telescopic direction of the spring is set along the extension direction of the detachable section 181.

[0056] In an alternative embodiment, as Figure 2 shown, both ends of the detachable section 181 have flange plates 182. The piston 13 is located in the middle of the detachable section 181, and two elastic supports 15 are respectively arranged on both sides of the piston 13. Both ends of the elastic support 15 respectively abut against the inner side of the flange plate 182 and the end of the piston 13. Flange plates 182 corresponding to the detachable section 181 are provided at the ends of the pipe body 180. In this embodiment, by connecting and fixing the detachable section 181 and the pipe body 180 through the flange plates 182, it can ensure a firm connection between the two, a high degree of fit at the connection, and avoid leakage.

[0057] In an alternative embodiment, a sealing ring is provided between the flange plates 182 of the detachable section 181 and the pipe body 180 to improve the sealing performance.

[0058] In an alternative embodiment, as Figure 1As shown, the water hammer elimination and pressure stabilizing device for the water cooling system further includes a liquid level stabilizing component 10, and the liquid level stabilizing component 10 is installed in the high-pressure buffer pressure stabilizing tank 9 and the low-pressure buffer pressure stabilizing tank 1; the liquid level stabilizing component 10 passes through the gas-liquid two-phase interface 102 in the high-pressure buffer pressure stabilizing tank 9 and the low-pressure buffer pressure stabilizing tank 1. In this embodiment, by passing the liquid level stabilizing component 10 through the gas-liquid two-phase interface 102 in the high-pressure buffer pressure stabilizing tank 9 and the low-pressure buffer pressure stabilizing tank 1, the liquid level in the tank has higher stability, and thus when the water hammer phenomenon occurs, the amplitude of water flow fluctuation, the duration of fluctuation and the vibration noise are effectively reduced, and the negative impact of the water hammer phenomenon is alleviated.

[0059] In an alternative embodiment, the liquid level stabilizing component 10 includes a number of columns 103 arranged perpendicular to the interface 102. In this embodiment, through the arrangement of the columns 103, the tension of the liquid level in the tank is increased. In this way, when the circulation pump 14 in the water cooling system stops, the water flow in the water cooling system flows under inertia. Due to the large tension of the liquid level in the high-pressure buffer pressure stabilizing tank 9 and the low-pressure buffer pressure stabilizing tank 1, when the water hammer phenomenon occurs, the amplitude of water flow fluctuation, the duration of fluctuation and the vibration noise are effectively reduced, and the negative impact of the water hammer phenomenon is alleviated. The structure of the column 103 is simple, the arrangement is convenient, and it is beneficial to reduce the cost of components.

[0060] In an alternative embodiment, as Figure 1 shown, the water hammer elimination and pressure stabilizing device for the water cooling system further includes a liquid level sensor 11, and the liquid level sensor 11 is connected to the high-pressure buffer pressure stabilizing tank 9 for measuring and monitoring the liquid level in the high-pressure buffer pressure stabilizing tank 9. In this embodiment, the function of the liquid level sensor 11 is to measure and monitor the height of the liquid level in the tank, prevent the inability to immediately know when equipment failure occurs. By monitoring the height of the liquid level in the tank, it can reflect whether the first gas distribution device or the second gas distribution device is normal from the side, and it is convenient to judge whether the liquid level stabilizing component 10 passes through the interface 102 normally.

[0061] In an alternative embodiment, as Figure 1 shown, both the first gas distribution device and the second gas distribution device include: a pressure reducing valve 6, a pressure stabilizing valve 5 and a solenoid valve 4. The pressure reducing valve 6 is used to reduce the pressure of the gas directly supplied by the gas cylinder 8, the pressure stabilizing valve 5 is used to maintain the pressure after the pressure reduction by the pressure reducing valve 6 constant, and the solenoid valve 4 is used to conduct or cut off the gas supply to the first gas distribution device or the second gas distribution device. In this embodiment, through the sequential arrangement of the pressure reducing valve 6, the pressure stabilizing valve 5 and the solenoid valve 4, the stable supply of gas to the high-pressure buffer pressure stabilizing tank 9 and the low-pressure buffer pressure stabilizing tank 1 can be realized.

[0062] In an alternative embodiment, as Figure 1As shown in the figure, both the first gas distribution device and the second gas distribution device include: a pressure monitoring and control device 3 and an automatic exhaust valve 2. The pressure monitoring and control device 3 is connected to the solenoid valve 4 and is used to control the conduction or cut-off of the solenoid valve; the automatic exhaust valve 2 is connected to the tops of the high-pressure buffer and pressure stabilizing tank 9 and the low-pressure buffer and pressure stabilizing tank 1 through pipelines, and is used to discharge the gas in the high-pressure buffer and pressure stabilizing tank 9 and the low-pressure buffer and pressure stabilizing tank 1 when the automatic exhaust valve 2 is opened. In this embodiment, the automatic conduction or cut-off of the solenoid valve 4 is realized through the pressure monitoring and control device 3, that is, when the air pressure is detected to be too high, the gas cylinder 8 is automatically cut off, and when the air pressure is detected to be too low, the gas cylinder 8 is automatically conducted, and the air pressure is output to the preset value under continuous switching. The automatic exhaust valve 2 can be automatically opened to relieve pressure when the air pressure in the tank reaches an excessive value, protecting the safety of the equipment.

[0063] In an alternative embodiment, the gas cylinder 8 is filled with an inert gas or nitrogen to reduce the oxidation and aging of the tank body, coolant or other components. Inert gases include, but are not limited to, high-purity helium and argon.

[0064] In an alternative embodiment, the first gas distribution device and the second gas distribution device can be separately connected to independent gas cylinders 8, or can share a gas cylinder 8 to reduce the number of gas cylinders 8 used and reduce the volume of the equipment.

[0065] In an alternative embodiment, the high-pressure buffer and pressure stabilizing tank 9 and the low-pressure buffer and pressure stabilizing tank 1 are made of stainless steel. The column 103 can also be made of stainless steel to avoid rust. The columns 103 are evenly arranged in the tank body, preferably in a mesh arrangement, to improve the distribution uniformity. The column 103 can be composed of stainless steel tube bundles fixed inside the buffer and pressure stabilizing tank and welded side by side.

[0066] In an alternative embodiment, a valve is provided on any inlet or outlet pipeline of the high-pressure buffer and pressure stabilizing tank 9 and the low-pressure buffer and pressure stabilizing tank 1 to control the connection or cut-off between the tank body and the outside world by opening or closing the valve in specific situations. A gas cylinder valve 7 can also be provided on the gas cylinder 8 to control the connection or cut-off between the gas cylinder 8 and the outside world by opening or closing the gas cylinder valve 7 in specific situations.

[0067] The water hammer elimination and pressure stabilizing device for the water cooling system provided in this embodiment has fewer moving parts and has characteristics such as high reliability and outstanding effects. The water hammer elimination and pressure stabilizing device for the water cooling system provided in this embodiment, through the combination of the gas-liquid buffer and pressure stabilizing tank and the connected piston balance system, greatly reduces the fluctuation amplitude and duration of the water hammer phenomenon during the start and stop of the circulation pump, ensuring the safe and stable operation of pipeline equipment and remote precision equipment.

[0068] Embodiment 2

[0069] This embodiment provides a test for the water hammer elimination and pressure stabilization device for a water cooling system in Embodiment 1, and provides a water hammer elimination and pressure stabilization device for a water cooling system, as Figure 1 shown, including: a high-pressure buffer pressure stabilization tank 9, a low-pressure buffer pressure stabilization tank 1, a first pressure stabilization mechanism, and a second pressure stabilization mechanism.

[0070] It further includes: a connecting pipe 18, a piston 13, and an elastic support 15. Both ends of the connecting pipe 18 are respectively communicated with the low-pressure buffer pressure stabilization tank 1 and the high-pressure buffer pressure stabilization tank 9. The piston 13 is installed in the connecting pipe 18 for isolating the fluid in the connecting pipe 18. The elastic support 15 is installed in the connecting pipe 18 and connected to the piston 13 for providing an elastic force for the piston 13 to move away from the preset position.

[0071] In this embodiment, the gas in the gas cylinder 8 is selected as high-purity nitrogen. The working pressure of the high-pressure buffer pressure stabilization tank 9 is set to 0.8 MPa, the working pressure of the low-pressure buffer pressure stabilization tank 1 is set to 0.4 MPa, and the exhaust pressure of the automatic exhaust valve 2 is 1.2 MPa. The head of the circulation pump 14 is 65 m, and the rated flow rate is 315 m 3 / h. Before installing the water hammer elimination and pressure stabilization device for the water cooling system in Embodiment 1, when the circulation pump 14 starts and stops, the maximum vibration amplitudes of the pump body caused by the water hammer phenomenon reach 2.32 mm and 4.89 mm respectively, and the pressure fluctuation duration (the vibration amplitude drops to 10% of the maximum value) is 3.56 s. After installing the water hammer elimination and pressure stabilization device, when the circulation pump 14 starts and stops, the maximum vibration amplitudes of the pump body caused by the water hammer phenomenon reach 0.52 mm and 0.86 mm respectively, and the pressure fluctuation duration is 0.43 s. It can be seen that the shock absorption effect is remarkable.

[0072] Embodiment 3

[0073] This embodiment provides a test for the water hammer elimination and pressure stabilization device for a water cooling system in Embodiment 1, and provides a water hammer elimination and pressure stabilization device for a water cooling system, as Figure 1 shown, including: a high-pressure buffer pressure stabilization tank 9, a low-pressure buffer pressure stabilization tank 1, a first pressure stabilization mechanism, and a second pressure stabilization mechanism.

[0074] It further includes: a connecting pipe 18, a piston 13, and an elastic support 15. Both ends of the connecting pipe 18 are respectively communicated with the low-pressure buffer pressure stabilization tank 1 and the high-pressure buffer pressure stabilization tank 9. The piston 13 is installed in the connecting pipe 18 for isolating the fluid in the connecting pipe 18. The elastic support 15 is installed in the connecting pipe 18 and connected to the piston 13 for providing an elastic force for the piston 13 to move away from the preset position.

[0075] In this embodiment, the gas in the gas cylinder 8 is selected as high-purity argon. The working pressure of the high-pressure buffer and voltage stabilizer tank 9 is set to 0.6 MPa, the working pressure of the low-pressure buffer and voltage stabilizer tank 1 is set to 0.3 MPa, and the exhaust pressure of the automatic exhaust valve 2 is 1.0 MPa. The head of the circulation pump 14 is 30 m, and the rated flow rate is 100 m 3 / h. Before installing the water hammer elimination and voltage stabilizing device, when the circulation pump 14 starts and stops, the maximum vibration amplitudes of the pump body caused by the water hammer phenomenon reach 1.89 mm and 3.21 mm respectively, and the pressure fluctuation duration (the vibration amplitude drops to 10% of the maximum value) is 3.14 s. After installing the water hammer elimination and voltage stabilizing device, when the circulation pump 14 starts and stops, the maximum vibration amplitudes of the pump body caused by the water hammer phenomenon reach 0.46 mm and 0.73 mm respectively, and the pressure fluctuation duration is 0.36 s. It can be seen that the shock absorption effect is remarkable.

[0076] Taking the above ideal embodiment based on this application as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this application. The technical scope of this application is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A water hammer elimination and pressure stabilizing device for a water cooling system, characterized in that Comprising: A high-pressure buffer and pressure stabilizing tank (9), the high-pressure buffer and pressure stabilizing tank (9) being configured to be connected to the outlet pipe (12) of the water cooling system, the high-pressure buffer and pressure stabilizing tank (9) having a drain port (901) for discharging circulating water; A low-pressure buffer and pressure stabilizing tank (1), the low-pressure buffer and pressure stabilizing tank (1) being configured to be connected to the inlet pipe (16) of the water cooling system, the low-pressure buffer and pressure stabilizing tank (1) having a water inlet (101) for introducing circulating water; A first pressure stabilizing mechanism, including a gas cylinder (8) and a first gas distribution device, the gas cylinder (8) being connected to the high-pressure buffer and pressure stabilizing tank (9) through the first gas distribution device, for filling gas into the high-pressure buffer and pressure stabilizing tank (9) to keep the air pressure in the high-pressure buffer and pressure stabilizing tank (9) at a first preset value; A second pressure stabilizing mechanism, including a gas cylinder (8) and a second gas distribution device, the gas cylinder (8) being connected to the low-pressure buffer and pressure stabilizing tank (1) through the second gas distribution device, for filling gas into the low-pressure buffer and pressure stabilizing tank (1) to keep the air pressure in the low-pressure buffer and pressure stabilizing tank (1) at a second preset value.

2. The water hammer elimination and pressure stabilization device for a water cooling system according to claim 1, characterized in that, The water hammer elimination and pressure stabilizing device for the water cooling system further includes: A connecting pipe (18), both ends of the connecting pipe (18) being communicated with the low-pressure buffer and pressure stabilizing tank (1) and the high-pressure buffer and pressure stabilizing tank (9) respectively; A piston (13), the piston (13) being installed in the connecting pipe (18) for isolating the fluid in the connecting pipe (18); An elastic support body (15), the elastic support body (15) being installed in the connecting pipe (18) and connected to the piston (13), for providing an elastic force for the piston (13) to move away from the preset position.

3. The water hammer elimination and pressure stabilization device for a water cooling system according to claim 2, characterized in that, The connecting pipe (18) includes: a pipe main body (180) and a detachable section (181), the detachable section (181) being detachably connected to the middle of the pipe main body (180), both ends of the detachable section (181) being communicated with the pipe main body (180); The piston (13) and the elastic support body (15) are installed in the detachable section (181).

4. The water hammer elimination and pressure stabilization device for a water cooling system according to claim 3, characterized in that, Both ends of the detachable section (181) have flange plates (182), the piston (13) is located in the middle of the detachable section (181), two elastic support bodies (15) are respectively arranged on both sides of the piston (13), and both ends of the elastic support body (15) respectively abut against the inner side of the flange plate (182) and the end of the piston (13); The end of the pipe main body (180) is provided with the flange plate (182) corresponding to the detachable section (181).

5. The water hammer elimination and pressure stabilization device for a water cooling system according to any one of claims 1-4, characterized in that, The water hammer elimination and pressure stabilizing device for the water cooling system further includes a liquid level stabilizing assembly (10), the liquid level stabilizing assembly (10) being installed in the high-pressure buffer and pressure stabilizing tank (9) and the low-pressure buffer and pressure stabilizing tank (1); the liquid level stabilizing assembly (10) penetrates through the gas-liquid two-phase interface (102) in the high-pressure buffer and pressure stabilizing tank (9) and the low-pressure buffer and pressure stabilizing tank (1).

6. The water hammer elimination and pressure stabilization device for a water cooling system according to claim 5, characterized in that, The liquid level stabilizing assembly (10) includes a number of columns (103) arranged perpendicular to the interface (102).

7. The water hammer elimination and pressure stabilization device for a water cooling system according to claim 6, characterized in that, The water hammer elimination and pressure stabilizing device for the water cooling system further includes a liquid level sensor (11), which is connected to the high-pressure buffer pressure stabilizing tank (9) and is used to measure and monitor the liquid level in the high-pressure buffer pressure stabilizing tank (9).

8. The water hammer elimination and pressure stabilization device for a water cooling system according to any one of claims 1-4, characterized in that, Both the first gas distribution device and the second gas distribution device include: a pressure reducing valve (6), a pressure stabilizing valve (5), and a solenoid valve (4). The pressure reducing valve (6) is used to reduce the pressure of the direct gas supply from the gas cylinder (8), the pressure stabilizing valve (5) is used to maintain the constant pressure after the pressure reduction by the pressure reducing valve (6), and the solenoid valve (4) is used to conduct or cut off the gas supply to the first gas distribution device or the second gas distribution device.

9. The water hammer elimination and pressure stabilization device for a water cooling system according to claim 8, characterized in that, Both the first gas distribution device and the second gas distribution device include: A pressure monitoring and control device (3), connected to the solenoid valve (4), for controlling the conduction or cut-off of the solenoid valve; An automatic exhaust valve (2), connected to the tops of the high-pressure buffer pressure stabilizing tank (9) and the low-pressure buffer pressure stabilizing tank (1) through pipelines. When the automatic exhaust valve (2) is opened, it is used to discharge the gas in the high-pressure buffer pressure stabilizing tank (9) and the low-pressure buffer pressure stabilizing tank (1).

10. The water hammer elimination and pressure stabilization device for a water cooling system according to any one of claims 1-4, characterized in that, The gas cylinder (8) is filled with an inert gas or nitrogen.

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