Liquid cooling CDU integrated filter degassing tank

Abstract

The invention discloses a liquid cooling CDU integrated filter degassing tank which comprises a tank body and a filter element arranged in the tank body, the top of the tank body is provided with a degassing tank cover, the degassing tank cover is connected with an exhaust valve, the bottom of the tank body is provided with a medium outlet communicated with a hollow area of the filter element, and one side, close to the top of the tank body, of the tank body is provided with a medium inlet; wherein the tank body is further internally provided with a frame body which is arranged outside the filter element in a sleeving manner, the outer wall of the frame body is provided with a rotary vane screen plate which spirally surrounds the frame body in the circumferential direction, and the rotary vane screen plate is provided with a plurality of through holes. A degassing device and a filtering device are integrated into a whole, the occupied area is greatly reduced, meanwhile, the rotary vane screen plate spirally surrounding the frame body in the circumferential direction can guide a medium, it is ensured that the medium forms balanced permeation in the axial direction and the radial direction of a filter element, the problem of impurity enrichment caused by the too high local flow speed is effectively prevented, and the filtering effect is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of liquid-cooled CDU, and particularly relates to an integrated filter degassing tank for liquid-cooled CDU. Background Art

[0002] Traditional data center servers use air to carry away the heat of heat-generating components, which has high energy consumption and low heat dissipation performance. Due to various problems of air cooling, liquid-cooled big data centers have emerged as the times require;

[0003] With the rapid development of data centers, the density of a single cabinet has increased rapidly, posing higher requirements for heat dissipation. Currently, CDU is used to dissipate heat from liquid-cooled data centers, with high cold quantity transportation, which can separate internal and external water-cooled media and reduce the cost of water-cooled media quality operation and maintenance. However, the degassing device and the filtering device of the current liquid-cooled system are mostly two independent structures connected in series in the loop. Not only does it require a large floor area, further compressing the placement space of a single cabinet, resulting in a greater density of a single cabinet, but also the manufacturing costs of the two separate degassing devices and filtering devices are relatively high. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated filter degassing tank for liquid-cooled CDU to overcome the defects of the prior art. A spiral vane mesh plate is circumferentially and spirally arranged on the frame body to generate vortices and shear forces, so that air bubbles gather and rise to the surface of the medium fluid for discharge. The medium enters the frame body for filtration, that is, the degassing device and the filtering device are integrated into one, greatly reducing the floor area. At the same time, the spiral vane mesh plate circumferentially and spirally arranged along the frame body can also guide the medium, ensuring balanced penetration of the medium in the axial and radial directions of the filter element, effectively preventing the problem of impurity enrichment caused by too high local flow velocity, and improving the filtering effect.

[0005] The purpose of the present invention is achieved by the following technical solutions:

[0006] An integrated filter degassing tank for liquid-cooled CDU includes a tank body and a filter element arranged in the tank body. A degassing tank cover is arranged at the top of the tank body, and the degassing tank cover is connected with an exhaust valve. A medium outlet communicating with the hollow area of the filter element is opened at the bottom of the tank body, and a medium inlet is opened at one side of the tank body near its top;

[0007] Wherein, a frame body sleeved outside the filter element is further arranged in the tank body, a spiral vane mesh plate circumferentially and spirally arranged along the frame body is arranged on the outer wall of the frame body, and a plurality of through holes are opened on the spiral vane mesh plate;

[0008] In this embodiment, after the medium enters the tank body from the medium inlet, a part of the medium enters the filter element for filtration and flows out from the medium outlet, and a part of the medium continuously flows downward in a spiral along the rotary vane mesh plate. During the flowing process, the medium gradually enters the filter element until all the medium at the bottom of the tank body passes through the filter element and flows out from the medium outlet, so that each filter element unit and even different filtration regions of a single filtration unit bear an equal filtration load, ensuring that the medium forms a balanced penetration in the axial and radial directions of the filter element, effectively preventing the enrichment phenomenon of impurities caused by too high local flow velocity, and avoiding the technical problem of non-uniform blockage.

[0009] In one embodiment, the frame body includes an inner filter element skeleton and an outer filter element skeleton. The rotary vane mesh plate is arranged on the outer filter element skeleton, the filter element is installed in the inner filter element skeleton, an intermediate filter screen is further arranged between the outer filter element skeleton and the inner filter element skeleton, and a plurality of diversion holes are formed in both the inner filter element skeleton and the outer filter element skeleton.

[0010] In this embodiment, that is, the frame body is arranged in a double-layer structure. The medium enters the filter element through the diversion holes and is initially filtered by the intermediate filter screen before entering the filter element. The rotary vane mesh plate is installed on the outer filter element skeleton to divert part of the medium.

[0011] In one embodiment, the outer filter element skeleton has a frustum structure, and the diameter of the outer filter element skeleton gradually increases along its axis direction from the medium inlet end to the medium outlet end.

[0012] In this embodiment, that is, the diameter of the outer filter element skeleton gradually increases in the direction of the medium outlet end, so that the distance between it and the tank body gradually decreases, distributing the flow resistance of the medium flowing through the filter element up and down, avoiding most of the impurities in the medium from accumulating too much on the upper part of the filter element, and ensuring the filtration effect.

[0013] In one embodiment, the apertures of the plurality of diversion holes on the outer filter element skeleton gradually become smaller along the axis direction of the frame body from the medium inlet end to the medium outlet end.

[0014] In this embodiment, the flow resistance of the medium flowing through the filter element up and down is further distributed to ensure the filtration effect.

[0015] In one embodiment, the degassing tank cover is connected to the tank body through a connecting piece, and a sealing member is further arranged at the connection between the degassing tank cover and the tank body.

[0016] In one embodiment, the top of the degassing tank cover is arranged in an oval dome structure.

[0017] In this embodiment, that is, the bubbles at the top of the filter element can move upward better, avoiding accumulation at the top of the filter element.

[0018] In one embodiment, the distance between the filter element and the inner wall of the tank gradually decreases from the medium inlet end to the medium outlet end along the axis direction of the filter element;

[0019] With this embodiment, as the medium flows, the water inlet flow rate of each section of the entire filter element is balanced, reducing the problem of local sediment impurities clogging.

[0020] In one embodiment, a conical notch structure is further provided at the top of the frame body. The base of the conical notch structure extends along the outer skeleton of the filter element, and the vertex of the conical notch structure is located on the filter element;

[0021] With this embodiment, a conical notch structure is dug at the top of the frame body. That is, under the same conditions, the exhaust efficiency of the tank can be effectively improved.

[0022] In one embodiment, the frame body further includes a filter element mounting plate disposed at the bottom of the inner skeleton of the filter element and an upper cover plate mounted on the top of the outer skeleton of the filter element.

[0023] In one embodiment, the distance between two adjacent sub-mesh plates in the rotary vane mesh plate is the same;

[0024] With this embodiment, the medium simultaneously generates a uniform radial flow perpendicular to the axial direction.

[0025] The beneficial effects of the present invention are as follows:

[0026] (1) A rotary vane mesh plate that is circumferentially spirally wound is provided on the frame body, generating vortices and shear forces, causing bubbles to aggregate and rise to the surface of the medium fluid for discharge. The medium enters the frame body and then is filtered. That is, the degassing device and the filtering device are integrated into one, greatly reducing the floor area. At the same time, the rotary vane mesh plate that is circumferentially spirally wound along the frame body can also guide the medium, ensuring that the medium forms a balanced penetration in the axial and radial directions of the filter element, effectively preventing the problem of impurity enrichment caused by too high local flow velocity, and improving the filtering effect.

[0027] (2) The outer skeleton of the filter element with a frustum structure is provided to cooperate with the gradually decreasing diversion holes to distribute the flow resistance of the medium flowing through the filter element up and down, avoiding most of the impurities in the medium from accumulating too much on the upper part of the filter element and ensuring the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the drawings. Among them:

[0029] Figure 1 shows the structural schematic diagram of the present invention;

[0030] Figure 2 shows the structural schematic diagram of the frame body of the present invention in one direction;

[0031] Figure 3 Shows the schematic structural diagram of the frame body of the present invention in another direction;

[0032] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to actual scale.

[0033] Reference numerals:

[0034] 1 - Tank body, 2 - Filter element, 3 - Degassing tank cover, 4 - Exhaust valve, 5 - Medium outlet, 6 - Medium inlet, 7 - Frame body, 8 - Rotary vane mesh plate, 9 - Connecting piece, 10 - Sealing element, 11 - Upper cover plate, 12 - Ball valve, 13 - Filter element mounting plate, 14 - Exhaust port, 701 - Inner skeleton of filter element, 702 - Outer skeleton of filter element, 703 - Intermediate filter screen, 704 - Flow guiding hole, 801 - Through hole. Detailed implementation manners

[0035] The present invention will be further described below in conjunction with the drawings.

[0036] The present invention provides a liquid - cooled CDU integrated filter degassing tank. As Figure 1 shown, it includes a tank body 1 and a filter element 2 disposed inside the tank body 1. A degassing tank cover 3 is provided at the top of the tank body 1. The degassing tank cover 3 is connected with an exhaust valve 4. A medium outlet 5 communicating with the hollow area of the filter element 2 is opened at the bottom of the tank body 1. A medium inlet 6 is opened at one side of the tank body 1 near its top;

[0037] Wherein, a frame body 7 sleeved outside the filter element 2 is further disposed inside the tank body 1. A rotary vane mesh plate 8 spirally surrounding the frame body 7 along the circumferential direction is disposed on the outer wall of the frame body 7. A plurality of through holes 801 are opened on the rotary vane mesh plate 8;

[0038] It should be noted that, as Figure 1 and Figure 3 shown, in this embodiment, a rotary vane mesh plate 8 spirally surrounding the frame body 7 in the circumferential direction is provided on the frame body 7 to generate vortices and shear forces, so that air bubbles gather and rise to the surface of the medium fluid to be discharged. The medium enters the frame body 7 and then is filtered. That is, the filtering device and the degassing device are integrated into one. After the medium enters the tank body 1 from the medium inlet 6, a part of the medium enters the filter element 2 to be filtered and flows out from the medium outlet 5. A part of the medium continuously flows spirally downward along the rotary vane mesh plate 8 and gradually enters the filter element 2 during the flowing process until all the medium at the bottom of the tank body 1 passes through the filter element 2 and flows out from the medium outlet 5, so that each filter element 2 unit and even different filtering areas of a single filtering unit bear an equal amount of filtering load, ensuring that the medium forms a balanced penetration in the axial and radial directions of the filter element 2, effectively preventing the phenomenon of impurity enrichment caused by too high local flow velocity, and avoiding the technical problem of non - uniform blockage;

[0039] Furthermore, as Figure 2As shown in the figure, the frame 7 includes the inner skeleton of the filter element 2 and the outer skeleton of the filter element 2. The rotary vane mesh plate 8 is arranged on the outer skeleton of the filter element 2. The filter element 2 is installed in the inner skeleton of the filter element 2. An intermediate filter screen 703 is also arranged between the outer skeleton of the filter element 2 and the inner skeleton of the filter element 2. A plurality of diversion holes 704 are formed on both the inner skeleton and the outer skeleton of the filter element 2;

[0040] In this embodiment, the frame 7 is arranged as a double-layer structure. The medium enters the filter element 2 through the diversion holes 704 and is first filtered by the intermediate filter screen 703 before entering the filter element 2. The rotary vane mesh plate 8 is installed on the outer skeleton of the filter element 2 to divert part of the medium, ensuring the filtering effect;

[0041] In one embodiment, as Figure 1 shown, the outer skeleton of the filter element 2 is in a frustum structure. The diameter of the outer skeleton of the filter element 2 gradually increases along its axis direction from the medium inlet 6 end to the medium outlet 5 end, that is, the diameter of the outer skeleton of the filter element 2 gradually increases in the direction of the medium outlet 5 end, so that the distance between it and the tank body 1 gradually decreases, distributing the flow resistance of the medium flowing through the filter element 2 up and down, preventing most of the impurities in the medium from accumulating too much on the upper part of the filter element 2 and ensuring the filtering effect;

[0042] Furthermore, as Figure 3 shown, the aperture diameters of the plurality of diversion holes 704 on the outer skeleton of the filter element 2 gradually become smaller along the axis direction of the frame 7 from the medium inlet 6 end to the medium outlet 5 end, that is, further distributing the flow resistance of the medium flowing through the filter element 2 up and down to ensure the filtering effect;

[0043] In one embodiment, as Figure 1 shown, the top of the degassing tank cover 3 is arranged as an oval dome structure, enabling the bubbles at the top of the filter element 2 to move upward better and preventing them from accumulating at the top of the filter element 2;

[0044] In one embodiment, the degassing tank cover 3 is connected to the tank body 1 through a connecting piece 9. A sealing member 10 is also arranged at the connection between the degassing tank cover 3 and the tank body 1. A ball valve 12 connected to the exhaust valve 4 is also arranged on the degassing tank cover 3, ensuring the degassing effect;

[0045] In one embodiment, as Figure 1 shown, the distance between the filter element 2 and the inner wall of the tank body 1 gradually decreases along the axis direction of the filter element 2 from the medium inlet 6 end to the medium outlet 5 end, that is, through the structural design of the filter element 2, as the medium flows, the water inlet flow rate of each section of the entire filter element 2 is balanced, reducing the problem of local sediment impurities blocking;

[0046] In one embodiment, as Figure 1 and Figure 2As shown, a conical notch structure is also formed at the top of the frame body 7. The base of the conical notch structure extends along the outer skeleton of the filter element 2, and the vertex of the conical notch structure is located on the filter element 2. That is, a conical notch structure is dug at the top of the frame body 7. The conical notch structure is jointly composed of the outer skeleton of the filter element 2, the intermediate filter screen 703, the inner skeleton of the filter element 2, and the notch at the top of the filter element 2. That is, under the same conditions, the exhaust efficiency of the tank body 1 can be effectively improved;

[0047] In one embodiment, the frame body 7 further includes a filter element 2 mounting plate arranged at the bottom of the inner skeleton of the filter element 2 and an upper cover plate 11 mounted on the top of the outer skeleton of the filter element 2. The arranged filter element 2 mounting plate facilitates fixing the filter element 2 in the inner skeleton of the filter element 2, and the upper cover plate 11 covers the frame body 7, and an exhaust port 14 is left on the upper cover plate 11;

[0048] In one embodiment, as Figure 3 shown, the distance between two adjacent sub-mesh plates in the rotary vane mesh plate 8 is the same, so that the medium simultaneously generates a uniform radial flow perpendicular to the axial direction;

[0049] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 should not be construed as a limitation of the present invention.

[0050] Although the present invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed, as long as they do not deviate from the spirit and scope of the present invention defined by the appended claims. It should be understood that the different dependent claims and the features described herein can be combined in a manner different from that described in the original claims. It should also be understood that the features described in connection with a single embodiment can be used in other described embodiments.

Claims

1. A liquid-cooled CDU integrated filter degassing tank, characterized in that: It comprises a tank body and a filter element arranged in the tank body, a degassing tank cover is arranged on the top of the tank body, the degassing tank cover is connected to an exhaust valve, a medium outlet connected to the hollow area of ​​the filter element is arranged at the bottom of the tank body, and a medium inlet is arranged on one side of the tank body close to the top; The tank body is also provided with a frame body sleeved outside the filter element, the outer wall of the frame body is provided with a rotary blade mesh plate spirally surrounding the frame body, and the rotary blade mesh plate is provided with a plurality of through holes.

2. A liquid-cooled CDU integrated filter degassing tank according to claim 1, characterized in that: The frame includes an inner filter skeleton and an outer filter skeleton, the rotary vane mesh is arranged on the outer filter skeleton, the filter is installed in the inner filter skeleton, an intermediate filter screen is arranged between the outer filter skeleton and the inner filter skeleton, and a plurality of guide holes are provided on the inner filter skeleton and the outer filter skeleton.

3. The liquid-cooled CDU integrated filter degassing tank according to claim 2, characterized in that: The filter element outer frame is in a frustum structure, and the diameter of the filter element outer frame gradually increases along the axial direction thereof from the medium inlet end toward the medium outlet end.

4. A liquid-cooled CDU integrated filter degassing tank according to claim 2 or 3, characterized in that: The apertures of the plurality of flow guide holes on the outer skeleton of the filter element gradually decrease from the medium inlet end to the medium outlet end along the axial direction of the frame.

5. The liquid-cooled CDU integrated filter degassing tank according to claim 1, characterized in that: The degassing tank cover is connected to the tank body through a connecting piece, and a sealing piece is also provided at the connection between the degassing tank cover and the tank body.

6. A liquid-cooled CDU integrated filter degassing tank according to claim 1 or 5, characterized in that: The top of the degassing tank cover is arranged as an elliptical dome structure.

7. A liquid-cooled CDU integrated filter degassing tank according to claim 1 or 3, characterized in that: The distance between the filter element and the inner wall of the tank body gradually decreases from the medium inlet end to the medium outlet end along the axial direction of the filter element.

8. The liquid-cooled CDU integrated filter degassing tank according to claim 2, characterized in that: A conical notch structure is also provided on the top of the frame, the base of the conical notch structure extends along the outer skeleton of the filter element, and the apex of the conical notch structure is located on the filter element.

9. The liquid-cooled CDU integrated filter degassing tank according to claim 2, characterized in that: The frame body also includes a filter element mounting plate arranged at the bottom of the filter element inner frame and an upper cover plate installed at the top of the filter element outer frame.

10. The liquid-cooled CDU integrated filter degassing tank according to claim 1, characterized in that: The distances between two adjacent sections of the rotary blade mesh are the same.

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