Heat dissipation and cooling device for server in machine room

Abstract

The invention relates to the technical field of heat dissipation and cooling, in particular to a heat dissipation and cooling device for a server in a machine room. Comprising a shell, a water tank is arranged on the back of the shell, a filter tank is arranged on one side of the water tank, a pump is arranged on one side of the bottom of the shell, and a water outlet of the pump is communicated with a water-cooling pipeline which sequentially passes through an inner cavity of the shell, the water tank, the filter tank and a water inlet of the pump; the water cooling pipeline in the shell is bent in a reciprocating mode, and a flow stabilizing block is arranged at the bent position of the water cooling pipeline and used for relieving water flow impact force and eliminating bubbles. A plurality of cleaning blocks are arranged on the inner side wall of the water cooling pipeline in the shell in a staggered manner and are used for collecting impacted impurities; according to the device, efficient, low-consumption and easy-to-maintain heat dissipation and cooling of the server in the machine room are realized through modular design, optimization of water flow distribution by the flow stabilizing block, elimination of bubbles, multistage interception of impurities by the dirt cleaning block and the filter and combination of air cooling and auxiliary heat dissipation.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation and cooling, and in particular to a heat dissipation and cooling device for a server in a computer room. Background Art

[0002] The heat dissipation and cooling devices of the servers in the computer room mainly include air-conditioning refrigeration systems, liquid cooling systems, cabinet and rack heat dissipation, air flow and ventilation, other heat dissipation devices, and temperature and humidity monitoring and management systems; these devices work together on the computer room environment through cooling, optimizing air flow, efficient heat conduction and real-time monitoring, ensuring that the server operates stably within an appropriate temperature range, extending the service life of the equipment and improving the overall operating efficiency of the data center.

[0003] The water cooling system of the existing heat dissipation and cooling device is arranged in a curved and circular manner due to the limited space of the server in the computer room. This arrangement has many bends and has a large water flow impact force at the bends. The large water flow impact force will cause the pipe to vibrate or even damage it. In addition, the coolant in the pipe usually dissolves a certain amount of gas. When the system is running, the large water flow impact force accompanied by the increase in coolant temperature or pressure change may cause the dissolved gas to precipitate and form bubbles. These dissolved gases will remain in the pipe in the form of bubbles. If the bubbles are large, the cooling function of the system will be affected. In addition, the inner wall of the pipe will be corroded to a certain extent due to the impact of water flow and the increase in temperature. The diameter of the crystal particles formed by calcium salts and magnesium salts is mostly 10~500μm. Long-term accumulation can form millimeter-level hard scale, which is easy to drop fine impurities. The impurities cannot be collected in time, affecting the heat exchange efficiency, or even blocking the pipe and reducing the water flow rate.

[0004] Therefore, the present application provides a heat dissipation and cooling device for a server in a computer room to solve the problems raised in the above background technology. Summary of the invention

[0005] The purpose of the present invention is to provide a heat dissipation and cooling device for a server in a computer room, so as to solve the problems that the water cooling pipes of the existing heat dissipation and cooling devices have large bubbles caused by large water flow impact at the bends, which affects the cooling function, and the impurities impacted cannot be collected in time.

[0006] In order to solve the above technical problems, the present invention provides a heat dissipation and cooling device for a server in a computer room, comprising a shell, a water tank is arranged at the back of the shell, a filter box is arranged at one side of the water tank, a pump body is arranged at one side of the bottom of the shell, a water outlet of the pump body is connected to a water cooling pipe, and the water cooling pipe passes through the inner cavity of the shell, the water tank, the filter box and the water inlet of the pump body in sequence; The water cooling pipe inside the shell is bent back and forth, and a flow stabilizing block is arranged at the bend of the water cooling pipe, and the flow stabilizing block is used to alleviate the impact force of the water flow and eliminate bubbles; A plurality of cleaning blocks are staggeredly arranged on the inner side wall of the water cooling pipe inside the shell, and the cleaning blocks are used to collect the impacted impurities.

[0007] A further improvement of the technical solution of the present invention is that the shell, the water tank and the filter box are integrally arranged as a rectangular structure.

[0008] A further improvement of the technical solution of the present invention is that the flow stabilizing block is fixed at the bend of the water cooling pipe, the direction of the flow stabilizing block is consistent with the direction of the bend of the water cooling pipe, and the inlet and outlet directions at both ends of the flow stabilizing block are collinear with the direction of the water flow, and a honeycomb mesh is arranged inside the flow stabilizing block along the direction of the water flow, and the aperture of each mesh of the honeycomb mesh is 1.2 mm.

[0009] A further improvement of the technical solution of the present invention is that cleaning holes are arranged inside the cleaning block along the water flow direction, the inner diameter of each cleaning hole varies in size, ranging from 0.5mm to 1.2mm, a conical groove is provided at the inlet end of the cleaning hole, and the inner wall surface of the cleaning hole is rough.

[0010] A further improvement of the technical solution of the present invention is that filters are arranged at the inlet and outlet of the water-cooling pipe in the inner cavity of the filter box, a cylindrical filter head is arranged inside the filter, the filter head is consistent with the axial direction of the water-cooling pipe, a plurality of rows of radial through holes of different sizes are evenly arranged in the radial direction of the filter head, a plurality of rows of axial through holes of different sizes are evenly arranged in the axial direction of the filter head, and the axial through holes and the radial through holes are staggered to form an accommodating space.

[0011] A further improvement of the technical solution of the present invention is that multiple rows of heat sinks are arranged on the outer wall of the water cooling pipe in the shell, and multiple mutually parallel air guide plates are evenly arranged on the front side of the shell cavity, and the air guide plates are embedded in the shell.

[0012] A further improvement of the technical solution of the present invention is that a plurality of cooling fans arranged in parallel are provided on one side of the pump body.

[0013] A further improvement of the technical solution of the present invention is that a drain outlet is provided at the bottom of the water tank.

[0014] By adopting the above technical solution, the present invention has the following beneficial effects: The present invention provides a heat dissipation and cooling device for a server in a computer room. The heat dissipation and cooling device is provided with a flow stabilizing block at the bend of a water-cooling pipe. On the one hand, it is beneficial to optimize the flow velocity distribution and reduce the impact force of the water flow. The regular channels of the honeycomb mesh guide the water flow to turn smoothly, so that the coolant flows evenly in the water-cooling pipe, and the contact efficiency with the server heat source is improved; on the other hand, bubbles and turbulence are eliminated. The mesh width of the honeycomb mesh at the bend is 1.2mm, which can disperse the impact force of the water flow, reduce the local turbulence intensity, and reduce bubble generation, especially for large bubbles with a diameter ≥1mm, to avoid uneven heat dissipation caused by air blockage.

[0015] The present invention provides a heat dissipation and cooling device for a server in a computer room. The heat dissipation and cooling device is advantageous for graded filtration of impurities by setting a cleaning block: the inner diameter of the cleaning hole ranges from 0.5 mm to 1.2 mm, and can capture and collect particles of different sizes, such as metal debris and scale; the conical groove entrance increases the impurity capture rate, and the rough inner wall prevents impurities from falling off; on the other hand, it reduces the maintenance frequency: impurities are concentrated and intercepted in the cleaning block to avoid entering the pump body or clogging the steady flow block, thereby extending the service life of the device and increasing the maintenance cycle.

[0016] The present invention provides a heat dissipation and cooling device for a server in a computer room. The heat dissipation and cooling device is provided with a filter. The axial through holes and radial through holes of the filter head in the filter form a multi-dimensional accommodating space, which can intercept particles with different movement directions, such as vertically falling sediments and horizontally flowing suspended matter. The filtration efficiency is improved by more than 40%, and the impurity particles are retained in the filter head, thereby reducing the clogging of impurities in the water cooling pipe.

[0017] The present invention provides a heat dissipation and cooling device for a server in a computer room. The heat dissipation and cooling device has a compact layout, and the rectangular body structure of the shell, water tank and filter box is adapted to the standard cabinet size. The heat source in the server is dissipated and cooled in a targeted manner, which saves computer room space and is convenient for modular replacement and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is an overall schematic diagram of a heat dissipation and cooling device for a server in a computer room; Figure 2 It is an overall schematic diagram of a heat dissipation and cooling device for a server in a computer room; Figure 3 It is a schematic diagram of the connection structure between the pump body and the water cooling pipe of the present invention; Figure 4 for Figure 3 A magnified schematic diagram of part A; Figure 5 is a schematic cross-sectional view of a water cooling pipe in a shell; Figure 6 for Figure 5 A magnified schematic diagram of part B; Figure 7 It is a cross-sectional schematic diagram of the flow stabilizing block of the present invention; Figure 8 It is a structural schematic diagram of the filter head of the present invention; Fig. 9 A radial view of the filter head of the present invention; Fig.10 It is an axial view of the filter head of the present invention.

[0020] Figure numerals: 1. Shell; 2. Water tank; 3. Filter box; 4. Pump body; 41. Water outlet; 42. Water inlet; 5. Water cooling pipe; 6. Flow stabilizing block; 61. Honeycomb mesh; 7. Cleaning block; 71. Cleaning hole; 72. Conical groove; 8. Filter; 81. Filter head; 82. Radial through hole; 83. Axial through hole; 9. Heat sink; 10. Wind guide plate; 11. Cooling fan. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 indirectly connected 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.

[0024] The present invention is further explained below in conjunction with specific implementation modes.

[0025] like Figure 1-Figure 10As shown, the present embodiment provides a heat dissipation and cooling device for a server in a computer room, comprising a shell 1, a water tank 2 is arranged on the back of the shell 1, a filter box 3 is arranged on one side of the water tank 2, a pump body 4 is arranged on one side of the bottom of the shell 1, a water outlet 41 of the pump body 4 is connected to a water cooling pipe 5, and the water cooling pipe 5 passes through the inner cavity of the shell 1, the water tank 2, the filter box 3 and the water inlet 42 of the pump body 4 in sequence; the water cooling pipe 5 inside the shell 1 is bent back and forth, and a flow stabilizing block 6 is arranged at the bending part of the water cooling pipe 5, and the flow stabilizing block 6 is used to alleviate the impact force of the water flow and eliminate bubbles; a plurality of cleaning blocks 7 are staggered on the inner wall of the water cooling pipe 5 inside the shell 1, and the cleaning block 7 is used to collect impurities that are impacted; the circulation path of the heat dissipation and cooling device is that the coolant flows in the direction of the pump body 4, the water cooling pipe 5 in the shell 1, the water tank 2, the filter box 3, and the pump body 4, forming a closed cycle.

[0026] like Figure 1-Figure 2 As shown, in this embodiment, the shell 1, water tank 2 and filter box 3 are arranged as a rectangular structure as a whole; the heat dissipation and cooling device has a compact layout, and the rectangular structure of the shell 1, water tank 2 and filter box 3 is adapted to the standard cabinet size, so as to dissipate heat and cool the heat source in the server in a targeted manner, save computer room space, and facilitate modular replacement and maintenance.

[0027] like Figure 5-Figure 7 As shown, in this embodiment, the flow stabilizing block 6 is fixed at the bend of the water-cooling pipe 5, the direction of the flow stabilizing block 6 is consistent with the direction of the bend of the water-cooling pipe 5, and the inlet and outlet directions of both ends of the flow stabilizing block 6 are in line with the direction of the water flow. A honeycomb mesh 61 is arranged inside the flow stabilizing block 6 along the direction of the water flow, and the aperture of each mesh of the honeycomb mesh 61 is 1.2 mm. The honeycomb mesh 61 is formed by laser cutting of 316L stainless steel, with a hole wall thickness of 0.5 mm, and is welded to the inner wall of the bend of the water-cooling pipe 5, and is strictly concentric with the inner diameter of the pipe (eccentricity error ≤ 0.1 mm); the honeycomb mesh 61 divides a single high-speed water flow into multiple microchannels, and the flow velocity is reduced to below 1.0 m / s, and the turbulence is reduced. The flow energy is attenuated, the bubble diameter is reduced to less than 1.2mm, and the uniformity of gas-liquid mixing is improved. The heat dissipation and cooling device is provided with a flow stabilizing block 6 at the bend of the water-cooling pipe 5. On the one hand, it is beneficial to optimize the flow velocity distribution and reduce the impact force of the water flow. The regular channels of the honeycomb mesh 61 guide the water flow to turn smoothly, so that the coolant flows evenly in the water-cooling pipe 5, and the contact efficiency with the server heat source is improved; on the other hand, bubbles and turbulence are eliminated. The mesh width of the honeycomb mesh 61 at the bend is 1.2mm, which can disperse the impact force of the water flow, reduce the local turbulence intensity, and reduce bubble generation, especially for large bubbles with a diameter greater than 1mm, to avoid uneven heat dissipation caused by air blockage.

[0028] like Figure 5-Figure 6As shown, in this embodiment, a cleaning hole 71 is arranged inside the cleaning block 7 along the water flow direction. The inner diameter of each cleaning hole 71 is different in size, ranging from 0.5 mm to 1.2 mm. The specific inner diameter is distributed in a gradient of 0.5 mm, 0.7 mm, 0.9 mm, and 1.2 mm. The aperture gradually decreases along the water flow direction to meet the impurity capture requirements under different flow rates. A conical groove 72 is provided at the inlet end of the cleaning hole 71. The inner wall surface of the cleaning hole 71 is rough. The inner wall of the cleaning hole 71 is sandblasted and coated with a hydrophobic Nano coating; The heat dissipation and cooling device is provided with a cleaning block 7, which is beneficial to graded filtration of impurities on the one hand: the inner diameter of the cleaning hole 71 ranges from 0.5mm to 1.2mm, which can capture and collect impurity particles of different sizes, such as metal debris and scale. The conical groove 72 entrance increases the capture rate of impurity particles, and the rough inner wall prevents impurities from falling off; on the other hand, it reduces the maintenance frequency: impurities are concentrated and intercepted in the cleaning block 7 to avoid entering the pump body 4 or clogging the flow stabilizing block 6, thereby extending the service life of the device and increasing the maintenance cycle.

[0029] like Figure 3 , Figure 8-Figure 10 As shown, in this embodiment, filters 8 are arranged at the inlet and outlet of the water-cooling pipe 5 in the inner cavity of the filter box 3, and a cylindrical filter head 81 is arranged inside the filter 8. The filter head 81 is consistent with the axial direction of the water-cooling pipe 5, and multiple rows of radial through holes 82 of different sizes are evenly arranged in the radial direction of the filter head 81, and multiple rows of axial through holes 83 of different sizes are evenly arranged in the axial direction of the filter head 81. The axial through holes 83 and the radial through holes 82 are staggered to form an accommodating space; the heat dissipation and cooling device is provided with a filter 8, and the axial through holes 83 and the radial through holes 82 of the filter head 81 in the filter 8 form a multi-dimensional accommodating space, which can intercept impurity particles with different moving directions, such as vertically falling sediments and horizontally flowing suspended matter, and the filtration efficiency is improved by more than 40%, and the impurity particles are retained in the filter head 81, thereby reducing the impurity clogging in the water-cooling pipe 5.

[0030] like Figure 1-Figure 2 As shown, in this embodiment, a plurality of rows of heat sinks 9 are arranged on the outer wall of the water-cooling pipe 5 in the shell 1, a plurality of mutually parallel air guide plates 10 are evenly arranged on the front side of the inner cavity of the shell 1, and the air guide plates 10 are embedded in the shell 1. A plurality of cold fans 11 arranged in parallel are arranged on one side of the pump body 4; the heat sink 9 and the air guide plates 10 cooperate to enhance heat exchange, and the heat sink 9 on the outer side of the water-cooling pipe 5 increases the heat dissipation surface area, and combined with the directional airflow guided by the air guide plates 10, "water cooling + air cooling" dual heat dissipation is achieved, which is particularly suitable for high heat density cabinets; in addition, the cold fan 11 assists in heat dissipation, and the cold fan 11 next to the pump body 4 can be started when the load is extreme or the water cooling system fails, to prevent the server from overheating and shutting down, and to improve system redundancy.

[0031] like Figure 1-Figure 3As shown, in this embodiment, a drain outlet (not shown in the figure) is set at the bottom of the water tank 2, and a backwash solenoid valve is set in the pump body 4, which has a self-cleaning function. After being used for a period of time, the high-pressure water flow of the pump body 4 flushes in the reverse direction and discharges the coolant through the drain hole, and new coolant is added for continuous use.

[0032] The working principle of the technical solution provided by the present invention is as follows: The user starts the pump body 4, which drives the pump body 4 to increase the pressure. The coolant is sucked into the water-cooling pipe 5 in the shell 1 by the pressurized action of the pump body 4, and the coolant flushes the cleaning block 7. The cleaning blocks 7 are staggered on the inner wall of the water-cooling pipe 5, and the inner diameter range of the cleaning hole 71 is between 0.5mm and 1.2mm, which can capture and collect particles of different sizes. The conical groove 72 entrance of the cleaning block 7 increases the impurity capture rate. When the impurity particles enter the cleaning hole 71, due to the rough surface of the inner wall of the cleaning hole 71, the impurity particles are captured and collected by the cleaning hole 71, thereby preventing the impurity particles from entering the pump body 4 or clogging the flow stabilizing block 6. The coolant continues to flow through the bend of the water-cooling pipe 5. The inlet and outlet directions of the two ends of the flow stabilizing block 6 arranged at the bend are in line with the water flow direction. The interior of the flow stabilizing block 6 is arranged along the direction of the water flow. A honeycomb mesh 61 is arranged, which divides a single high-speed water flow into multiple microchannels, the flow rate is reduced to below 1.0 m / s, the turbulent energy is attenuated, the bubble diameter is reduced to below 1.2 mm, and the uniformity of gas-liquid mixing is improved. The heat dissipation and cooling device is provided with a flow stabilizing block 6 at the bend of the water-cooling pipe 5. On the one hand, it optimizes the flow velocity distribution and reduces the impact force of the water flow. The regular channels of the honeycomb mesh 61 guide the water flow to turn smoothly, so that the coolant flows evenly in the water-cooling pipe 5, and the contact efficiency with the server heat source is improved; on the other hand, it eliminates bubbles and turbulence. The mesh width of the honeycomb mesh 61 at the bend is 1.2 mm, which can disperse the impact force of the water flow, reduce the local turbulence intensity, and reduce bubble generation, especially for large bubbles with a diameter greater than 1 mm, to avoid uneven heat dissipation caused by air blockage.

[0033] The coolant flows to the water tank 2 for buffer cooling, and continues to flow to the filter box 3 for deep purification: after entering the filter box 3, the coolant passes through the accommodating space formed by the radial through holes 82 and the axial through holes 83 of the filter head 81, intercepts foreign particles in three dimensions, and the purified coolant returns to the pump body 4 to balance the pressure, completing a continuous circulation with high efficiency and low resistance; after being used for a period of time, the high-pressure water flow of the pump body 4 is reversely flushed through the backwash solenoid valve, and the coolant is discharged through the drain hole, and new coolant is added for continuous use.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A heat dissipation and cooling device for a server in a computer room, characterized in that: It comprises a housing (1), a water tank (2) is arranged at the back of the housing (1), a filter box (3) is arranged at one side of the water tank (2), a pump body (4) is arranged at one side of the bottom of the housing (1), a water outlet (41) of the pump body (4) is connected to a water cooling pipe (5), and the water cooling pipe (5) passes through the inner cavity of the housing (1), the water tank (2), the filter box (3) and the water inlet (42) of the pump body (4) in sequence; The water cooling pipe (5) inside the shell (1) is bent back and forth, and a flow stabilizing block (6) is provided at the bending position of the water cooling pipe (5), and the flow stabilizing block (6) is used to alleviate the impact force of the water flow and eliminate bubbles; A plurality of cleaning blocks (7) are arranged in an alternating manner on the inner side wall of the water cooling pipe (5) inside the shell (1), and the cleaning blocks (7) are used to collect impurities that are impacted.

2. A heat dissipation and cooling device for a server in a computer room according to claim 1, characterized in that: The shell (1), the water tank (2) and the filter box (3) are integrally arranged into a rectangular structure.

3. The heat dissipation and cooling device for a server in a computer room according to claim 1, characterized in that: The flow stabilizing block (6) is fixed at the bend of the water cooling pipe (5), the direction of the flow stabilizing block (6) is consistent with the direction of the bend of the water cooling pipe (5), and the inlet and outlet directions at both ends of the flow stabilizing block (6) are collinear with the direction of the water flow, and a honeycomb mesh (61) is arranged inside the flow stabilizing block (6) along the direction of the water flow, and the aperture of each mesh of the honeycomb mesh (61) is 1.2 mm.

4. The heat dissipation and cooling device for a server in a computer room according to claim 1, characterized in that: Cleaning holes (71) are arranged inside the cleaning block (7) along the water flow direction. The inner diameter of each cleaning hole (71) varies in size and ranges from 0.5 mm to 1.2 mm. A conical groove (72) is provided at the inlet end of the cleaning hole (71). The inner wall surface of the cleaning hole (71) is rough.

5. The heat dissipation and cooling device for a server in a computer room according to claim 1, characterized in that: A filter (8) is provided at the inlet and outlet of the water-cooling pipe (5) in the inner cavity of the filter box (3); a cylindrical filter head (81) is provided inside the filter (8); the filter head (81) is aligned axially with the water-cooling pipe (5); a plurality of rows of radial through holes (82) of varying sizes are evenly provided in the radial direction of the filter head (81); a plurality of rows of axial through holes (83) of varying sizes are evenly provided in the axial direction of the filter head (81); the axial through holes (83) and the radial through holes (82) are alternately provided to form an accommodation space.

6. The heat dissipation and cooling device for a server in a computer room according to claim 1, characterized in that: A plurality of rows of heat sinks (9) are arranged on the outer wall of the water cooling pipe (5) in the shell (1), and a plurality of mutually parallel air guide plates (10) are evenly arranged on the front side of the inner cavity of the shell (1), and the air guide plates (10) are embedded in the shell (1).

7. The heat dissipation and cooling device for a server in a computer room according to claim 1, characterized in that: A plurality of cooling fans (11) arranged in parallel are provided on one side of the pump body (4).

8. The heat dissipation and cooling device for a server in a computer room according to claim 1, characterized in that: A drainage outlet is provided at the bottom of the water tank (2).

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