A vortex liquid outlet type liquid cooling cabinet and control method thereof

Abstract

The present application relates to the field of liquid-cooled servers, and specifically discloses a vortex-discharge liquid cooling cabinet and a control method thereof, including a water tank, a liquid cooling box inserted into the water tank, and the liquid cooling box is used to place the server; the water tank has an inlet pipe and an outlet pipe; the water pressure of the inlet pipe is greater than the water pressure in the water tank so that the water entering the inlet pipe can move relative to the water in the water tank, and the outlet pipe is arranged at the bottom of the water tank. By adopting the above technical scheme, the present application improves local heat accumulation by forming a vortex in the water tank, and at the same time speeds up the water outlet speed, and finally improves the overall heat dissipation effect of the liquid cooling cabinet; further increases the vortex by an agitator, and further improves the heat dissipation effect; by arranging a turbine in the liquid cooling box that is linked to the agitator, the heat accumulation in the liquid cooling box is simultaneously improved, and thus the overall heat dissipation effect is guaranteed in cooperation with the water tank.

Description

Technical Field

[0001] The present application relates to the field of liquid cooling servers, and in particular to a vortex-discharge type liquid cooling cabinet and a control method thereof. Background Art

[0002] Liquid Cooling Liquid Cooling Server Cabinet is a device that uses liquid cooling technology to dissipate heat from the server. The following is a detailed introduction about it: Liquid cooling technology uses the high thermal conductivity of liquid to transport the liquid from the condenser to various devices in the server cabinet through a pump, absorbing the heat generated by the equipment, and then flowing back to the condenser for cooling, repeating this cycle to achieve an efficient cooling effect.

[0003] The liquid supply system is responsible for providing cooling liquid, which is generally a mixture of deionized water and ethylene glycol, fluorinated liquid, etc.; the liquid circulation system consists of pumps, pipes and heat exchangers, which brings the heat absorbed by the liquid from the server cabinet back to the cooling system for cooling; the cooling system is mainly composed of a cooling tower, a chilled water system and a heat dissipation system, which is responsible for transferring the heat in the liquid to the external environment.

[0004] Immersed liquid cooling server cabinet: The server is completely immersed in the coolant, and the heat of all heating components is directly transferred to the coolant, and then the coolant circulates or evaporates and condenses to dissipate heat. The existing coolant only flows in and out normally, which easily forms local heat accumulation, resulting in poor heat exchange effect. Summary of the invention

[0005] In order to improve the problem of low heat exchange efficiency, the present application provides a vortex liquid outlet type liquid cooling cabinet.

[0006] The present application provides a vortex liquid outlet type liquid cooling cabinet adopts the following technical solution: A vortex liquid outlet liquid cooling cabinet, characterized in that it includes a water tank and a liquid cooling box inserted into the water tank, the liquid cooling box is used to place a server; the water tank has a water inlet pipe and a water outlet pipe; the water pressure of the water inlet pipe is greater than the water pressure in the water tank so that the water entering the water inlet pipe can move relative to the water in the water tank, and the water outlet pipe is arranged at the bottom of the water tank.

[0007] By adopting the above technical solution, the water that has just entered will form a speed difference with the water already in the water tank, thereby forming a vortex, reducing local heat accumulation and improving the heat exchange effect.

[0008] Optionally, the water tank is provided with a vortex guide plate, which enables the water entering from the water inlet pipe to move in a circular motion.

[0009] By adopting the above technical solution, the vortex guide plate is arranged so that the water just entering from the water inlet pipe can easily move in a circle along the vortex guide plate, thereby forming a large vortex more easily.

[0010] Optionally, an agitator is installed in the water tank, and the agitator includes a rotating shaft rotatably connected to the bottom of the liquid cooling box, a connecting plate fixed on the rotating shaft, and a stirring plate fixed on the connecting plate, and the water outlet direction of the water inlet pipe is toward the stirring plate.

[0011] By adopting the above technical solution, the setting of the agitator can make the vortex larger and more stable. Since the water outlet pipe is at the bottom of the water tank, the water outlet speed is faster after the vortex is formed, further improving the heat dissipation effect. At the same time, due to the position of the water outlet pipe, the rotating shaft cannot be set on the water tank, so it is changed to be set at the bottom of the liquid cooling box.

[0012] Optionally, the water tank is cylindrical, and the water inlet pipe is arranged along the tangent direction of the water tank.

[0013] By adopting the above technical solution, the water tank is set to be cylindrical, and the guide plate can be omitted. The inner wall of the water tank is directly used as the guide plate.

[0014] Optionally, the water inlet pipe partially extends into the water tank.

[0015] By adopting the above technical solution, the kinetic energy loss after the water comes out of the water inlet pipe can be reduced, and the impact force on the stirring blade is greater.

[0016] Optionally, a turbine is rotatably connected in the liquid cooling box, and the turbine is magnetically connected to the rotating shaft. Relying on the magnetic effect between the turbine and the rotating shaft, the rotating shaft can drive the turbine to rotate.

[0017] By adopting the above technical solution, since the cooling oil in the liquid cooling box will also accumulate heat, the magnetic connection between the rotating shaft and the turbine is utilized to drive the turbine to rotate, so that the cooling oil in the liquid cooling box flows, the accumulated heat is reduced, and the heat dissipation effect is improved.

[0018] Optionally, a turbine is rotatably connected inside the liquid cooling box, and the rotating shaft passes through the liquid cooling box and is fixed to the shaft of the worm gear; the liquid cooling box partially extends out of the top of the water tank so that the hydraulic pressure inside the liquid cooling box is greater than the water pressure in the water tank, and the liquid cooling box is connected to a liquid replenishing device so that the hydraulic pressure inside the liquid cooling box is greater than the water pressure in the water tank.

[0019] By adopting the above technical solution, since the rotating shaft passes through the liquid cooling box, although a multi-channel dynamic sealing structure is arranged between the rotating shaft and the liquid cooling box, there is still a risk of leakage during long-term use. Therefore, the liquid cooling box partially extends out of the top of the water tank so that the hydraulic pressure in the liquid cooling box is greater than the water pressure in the water tank. It can be ensured that only the cooling oil in the liquid cooling box can enter the water tank, and the liquid replenishing device is to ensure the cooling oil level in the liquid cooling box to always ensure that the hydraulic pressure in the liquid cooling box is greater than the water pressure in the water tank.

[0020] Optionally, at least two water inlet pipes are provided, and the tangent position of each water inlet pipe is different, and each water inlet pipe is independently controlled.

[0021] By adopting the above technical solution, since the number of stirring blades may cause the next stirring blade to not be exactly opposite to the water inlet pipe after the current stirring blade is impacted and rotated by the water inlet pipe, the above problem is solved by setting up multiple water inlet pipes.

[0022] Optionally, a water level sensor is provided in the water tank, and the vortex liquid outlet liquid cooling cabinet has a control cabinet or an external control cabinet, and the water inlet speed of the water inlet pipe is controlled by the control cabinet, and a booster pump is installed on or externally connected to the water inlet pipe.

[0023] By adopting the above technical solution, the liquid level in the water tank is ensured by a water level sensor, and the water pressure of the water inlet pipe can be controlled by a booster pump. Of course, the pipe network to which the water inlet pipe is generally connected (the pipe network here can be a tap water pipe network or a factory's own water supply pipe network) itself will have a water pump.

[0024] Optionally, a control method for a vortex-discharge type liquid cooling cabinet is characterized by: controlling the water pressure of the water inlet pipe to ensure that the water entering the water inlet pipe can move relative to the water in the water tank, and forming a vortex by using the water flow velocity difference; When an agitator is present, the water outlet direction of the water inlet pipe is controlled to be toward the agitator blades of the agitator to drive the agitator to rotate and form a vortex.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. This application improves local heat accumulation by forming eddies in the water tank, while speeding up the water discharge speed, and ultimately improves the overall heat dissipation effect of the liquid cooling cabinet; 2. The agitator further increases the vortex and further improves the heat dissipation effect; 3. By setting a turbine linked to the agitator in the liquid cooling box, the heat accumulation in the liquid cooling box is improved simultaneously, thereby cooperating with the water tank to ensure the overall heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application; Figure 2 It is a schematic diagram of the overall structure of Example 2 of the present application; Figure 3 It is a schematic diagram of the overall structure of Example 4 of the present application; Figure 4 is a schematic diagram of the top view of the structure of Example 4 of the present application; Figure 5 It is a schematic diagram of the overall structure of Example 5 of the present application; Figure 6It is a schematic diagram of the overall structure of Example 6 of the present application; Figure 7 It is a schematic diagram of the overall structure of Example 7 of the present application.

[0027] Figure numerals: 1. water tank; 2. liquid cooling box; 3. water inlet pipe; 4. water outlet pipe; 5. necking portion; 6. water level sensor; 7. vortex guide plate; 8. fixing plate; 9. rotating shaft; 10. connecting plate; 11. stirring plate; 12. bearing seat; 13. bearing; 14. turbine; 15. liquid replenishing tank; 16. liquid replenishing pump; 17. liquid level sensor. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-7 This application is described in further detail.

[0029] Example 1: Reference Figure 1 , a vortex liquid outlet liquid cooling cabinet, comprising a water tank 1, a liquid cooling box 2 inserted into the water tank 1, and the liquid cooling box 2 is used to place the server. The water tank 1 can be a hollow cylinder or a cuboid. The water tank 1 has an inlet pipe 3 and an outlet pipe 4; the water pressure of the inlet pipe 3 is greater than the water pressure in the water tank 1 to form a pressure difference so that the water entering the inlet pipe 3 can move relative to the water in the water tank 1, and the inlet pipe 3 is arranged horizontally, and the height of the inlet pipe 3 is preferably lower than the bottom of the liquid cooling box 2 to avoid the existence of the liquid cooling box 2 interfering with the formation of vortices. The inlet pipe 3 is preferably partially extended into the water tank 1. The outlet pipe 4 is arranged at the bottom of the water tank 1, and the bottom of the water tank 1 has a constricted portion 5 with a gradually decreasing cross-section.

[0030] When in use, the water inlet pipe 3 is connected to the water supply network. A water level sensor 6 is provided in the water tank 1. The vortex liquid outlet liquid cooling cabinet has a control cabinet or an external control cabinet. The water inlet speed of the water inlet pipe 3 is controlled by the control cabinet. A booster pump is installed on or externally connected to the water inlet pipe 3 to control the water pressure of the water outlet pipe 4. The liquid level in the water tank 1 is ensured by the water level sensor 6, wherein the control cabinet receives the signal of the water level sensor 6 to control the water pump of the water supply network.

[0031] The implementation principle of a vortex-discharge type liquid cooling cabinet according to an embodiment of the present application is as follows: the water pressure entering from the water inlet pipe 3 is high, so a flow velocity difference is formed relative to the water in the water tank 1, thereby forming a vortex.

[0032] Example 2: Reference Figure 2 A vortex-discharge liquid cooling cabinet is provided. On the basis of Embodiment 1, a vortex-shaped guide plate 7 is added. The vortex-shaped guide plate 7 makes the water entering from the water inlet pipe 3 move in a circular motion. The vortex-shaped guide plate 7 is fixed to the inner wall of the water tank 1 through a fixing plate 8. In this embodiment, the water tank 1 is generally preferably a hollow rectangular parallelepiped, but it can also be a cylinder.

[0033] The implementation principle of the vortex-discharge liquid cooling cabinet in the embodiment of the present application is as follows: the water pressure entering from the water inlet pipe 3 is high, and it rotates relative to the inner wall of the vortex-shaped guide plate 7 to form a vortex.

[0034] Embodiment 3: A vortex-discharge liquid cooling cabinet, which is different from Embodiment 1 in that the water tank 1 is set as a hollow cylinder (cylindrical), the water inlet pipe 3 is set tangent to the water tank 1 (the water inlet pipe 3 is arranged along the tangent direction of the water tank 1), and the inner wall of the water tank 1 is used as a guide plate to form a vortex.

[0035] Example 4: Reference Figure 3-Figure 4 , a vortex liquid outlet liquid cooling cabinet, based on any one of embodiments 1-3, an agitator is installed in the water tank 1, the agitator includes a rotating shaft 9 rotatably connected to the bottom of the liquid cooling box 2, a connecting plate 10 fixed on the rotating shaft 9, and a stirring blade 11 fixed on the connecting plate 10, and the water outlet direction of the water inlet pipe 3 is toward the stirring blade 11. Specifically, a bearing 13 seat 12 is fixed at the bottom of the liquid cooling box 2, and the bearing 13 is inserted into the bearing 13 by interference fit in the shaft, and the rotating shaft 9 is interference fit with the inner ring of the bearing 13. The stirring blade 11 can be directly welded to the connecting plate 10, or a threaded column can be fixed at the bottom of the stirring blade 11 and installed on the connecting plate 10 by threaded connection. Since the water outlet pipe 4 is located at the bottom of the water tank 1, there is no position to install the rotating shaft 9 on the water tank 1, so the rotating shaft 9 is set on the liquid cooling box 2 by hanging upside down. In this scheme, the height of the water inlet pipe 3 is higher than the bottom of the water tank 1, because at this time, the agitator is driven to rotate mainly by impacting the stirring blade 11 to form a vortex, so the interference of the liquid cooling box 2 can be ignored.

[0036] The implementation principle of the vortex liquid discharge liquid cooling cabinet in the embodiment of the present application is: the agitator is driven to rotate mainly by impacting the stirring blade 11 to form a large vortex. Of course, the flow velocity difference itself will also form a small vortex (secondary), so that the overall vortex is larger and the effect is better.

[0037] Example 5: Reference Figure 5 , a vortex liquid-discharging liquid cooling cabinet, based on any one of Embodiment 4, a turbine 14 is rotatably connected in the liquid cooling box 2, and the turbine 14 is magnetically connected to the rotating shaft 9. Relying on the magnetic effect between the turbine 14 and the rotating shaft 9, the rotating shaft 9 can drive the turbine 14 to rotate.

[0038] The implementation principle of a vortex-discharge liquid cooling cabinet in an embodiment of the present application is: while forming a vortex in the water tank 1, it drives the cooling oil in the liquid cooling box 2 to flow, thereby improving the local heat accumulation in the liquid cooling box 2 and enhancing the overall heat dissipation effect.

[0039] Example 6, reference Figure 6, a vortex liquid-discharging liquid cooling cabinet, based on any one of Embodiment 4, a turbine 14 is rotatably connected in the liquid cooling box 2, and the rotating shaft 9 passes through the liquid cooling box 2 and is fixed to the shaft of the turbine; the liquid cooling box 2 partially extends out of the top of the water tank 1 so that the hydraulic pressure in the liquid cooling box 2 is greater than the water pressure in the water tank 1, and the liquid cooling box 2 is connected to a liquid replenishing device so that the hydraulic pressure in the liquid cooling box 2 is greater than the water pressure in the water tank 1.

[0040] Since the rotating shaft 9 passes through the liquid cooling box 2, although a multi-channel dynamic sealing structure is arranged between the rotating shaft 9 and the liquid cooling box 2 (for example, a plurality of annular grooves are opened on the rotating shaft 9, a sealing ring is embedded in each annular groove, and the sealing ring is interference fit with the inner wall of the liquid cooling box 2), there is still a risk of leakage during long-term use. Therefore, the liquid cooling box 2 partially extends out of the top of the water tank 1 so that the hydraulic pressure in the liquid cooling box 2 is greater than the water pressure in the water tank 1. This can ensure that only the cooling oil in the liquid cooling box 2 can enter the water tank 1, and the liquid replenishing device is to ensure the cooling oil level in the liquid cooling box 2, so as to always ensure that the hydraulic pressure in the liquid cooling box 2 is greater than the water pressure in the water tank 1.

[0041] The liquid replenishing device includes a liquid replenishing tank 15, a liquid replenishing pump 16 and a liquid level sensor 17, wherein the liquid level sensor 17 is installed in the liquid cooling tank 2, the liquid replenishing tank 15 is connected to the liquid cooling tank 2 through a liquid replenishing pipe, and the liquid replenishing pump 16 is installed on the liquid replenishing pipe. When the liquid level sensor 17 detects that the liquid level is lower than the set value, liquid replenishment is performed.

[0042] The implementation principle of the vortex liquid outlet liquid cooling cabinet of the present application embodiment is: the water inlet pipe 3 impacts the stirring blade 11 to drive the stirrer to rotate, thereby forming a large vortex. The synchronous stirrer drives the turbine 14 to rotate, so that the cooling oil in the liquid cooling box 2 flows.

[0043] Example 7, reference Figure 7 , a vortex liquid outlet liquid cooling cabinet, based on any one of embodiments 4-6, at least two water inlet pipes 3 are provided, and the tangent position of each water inlet pipe 3 is different, and each water inlet pipe 3 is independently controlled. Independent control means that each water inlet pipe 3 is independently connected to the water pump, rather than being divided into two branches from the main line. At this time, the two water inlet pipes 3 are intermittently staggered to inlet water or synchronously inlet water, and a temperature sensor is installed on the liquid cooling box 2 or the server, and the intermittent staggered water inlet or synchronous water inlet is controlled according to the temperature change. For example, when the temperature is low, the water inlet can be intermittently staggered, and when the temperature is high, the water inlet can be synchronous.

[0044] Embodiment 8: A control method for a vortex-discharge liquid cooling cabinet, controlling the water pressure of the water inlet pipe 3 to ensure that the water entering the water inlet pipe 3 can move relative to the water in the water tank 1, and forming a vortex by using the water flow velocity difference; When there is an agitator, the water outlet direction of the water inlet pipe 3 is controlled to be toward the agitator blades 11 of the agitator to drive the agitator to rotate and form a vortex.

[0045] In summary, the present application improves local heat accumulation by forming a vortex in the water tank 1, while accelerating the water outlet speed, thereby ultimately improving the overall heat dissipation effect of the liquid cooling cabinet; further increases the vortex through the agitator, thereby further improving the heat dissipation effect; and simultaneously improves the heat accumulation in the liquid cooling box 2 by setting a turbine 14 linked to the agitator in the liquid cooling box 2, thereby cooperating with the water tank 1 to ensure the overall heat dissipation effect.

[0046] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A vortex liquid outlet type liquid cooling cabinet, characterized in that: It includes a water tank and a liquid cooling box inserted into the water tank, the liquid cooling box is used to place the server; the water tank has a water inlet pipe and a water outlet pipe; the water pressure of the water inlet pipe is greater than the water pressure in the water tank so that the water entering the water inlet pipe can move relative to the water in the water tank, and the water outlet pipe is arranged at the bottom of the water tank.

2. The vortex liquid outlet type liquid cooling cabinet according to claim 1, characterized in that: The water tank is provided with a vortex guide plate, which enables the water entering from the water inlet pipe to move in a circular motion.

3. The vortex liquid outlet type liquid cooling cabinet according to claim 1, characterized in that: An agitator is installed in the water tank, and the agitator includes a rotating shaft rotatably connected to the bottom of the liquid cooling box, a connecting plate fixed on the rotating shaft, and a stirring plate fixed on the connecting plate. The water outlet direction of the water inlet pipe is toward the stirring plate.

4. The vortex liquid outlet type liquid cooling cabinet according to claim 1, characterized in that: The water tank is cylindrical, and the water inlet pipe is arranged along the tangent direction of the water tank.

5. The vortex liquid outlet type liquid cooling cabinet according to claim 1, characterized in that: The water inlet pipe portion extends into the water tank.

6. The vortex liquid outlet type liquid cooling cabinet according to claim 3, characterized in that: A turbine is rotatably connected in the liquid cooling box. The turbine is magnetically connected to the rotating shaft. Relying on the magnetic effect between the turbine and the rotating shaft, the rotating shaft can drive the turbine to rotate.

7. The vortex liquid outlet type liquid cooling cabinet according to claim 3, characterized in that: A turbine is rotatably connected inside the liquid cooling box, and the rotating shaft passes through the liquid cooling box and is fixed to the shaft of the turbine; the liquid cooling box partially extends out of the top of the water tank so that the hydraulic pressure inside the liquid cooling box is greater than the water pressure in the water tank, and the liquid cooling box is connected to a liquid replenishing device so that the hydraulic pressure inside the liquid cooling box is greater than the water pressure in the water tank.

8. The vortex liquid outlet type liquid cooling cabinet according to claim 4, characterized in that: At least two water inlet pipes are provided, and the tangent position of each water inlet pipe is different, and each water inlet pipe is independently controlled.

9. The vortex liquid outlet type liquid cooling cabinet according to claim 1, characterized in that: A water level sensor is arranged in the water tank, and the vortex liquid outlet type liquid cooling cabinet has a control cabinet or an external control cabinet, through which the water inlet speed of the water inlet pipe is controlled, and a booster pump is installed on the water inlet pipe or externally connected.

10. A control method for a vortex liquid outlet liquid cooling cabinet, characterized in that: Control the water pressure of the water inlet pipe to ensure that the water entering the water inlet pipe can move relative to the water in the water tank, and use the water flow speed difference to form a vortex; When an agitator is present, the water outlet direction of the water inlet pipe is controlled to be toward the agitator blades of the agitator to drive the agitator to rotate and form a vortex.

Images