A gas-liquid two-phase boiling heat exchange cabinet

Abstract

The present application relates to electronic equipment heat dissipation technical field, specifically relates to a kind of gas-liquid two-phase boiling heat transfer machine case, comprising: square frame, wiring frame, adapter panel and multiple slots, square frame includes front panel, rear panel, left side plate and right side plate;Front panel and rear panel are provided with total distribution total formula flow channel, left side plate liquid working medium flow channel, right side plate is provided with gas working medium flow channel in inside;Multiple slots are one-to-one corresponding and are set on the opposite surface of front panel and rear panel;Wiring frame is set between the opposite surface close to the bottom of front panel and rear panel;Adapter panel is set between the opposite surface close to the top of front panel and rear panel.The present application adopts gas-liquid two-phase heat dissipation mode, with the characteristics of high heat exchange efficiency, large total heat exchange, low flow resistance, strong versatility, compact structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic equipment heat dissipation, and particularly relates to a gas-liquid two-phase boiling heat exchange machine case. BACKGROUND

[0002] Electronic machine cases are internally provided with a plurality of electronic plug-in modules in the form of plug-ins. With the continuous development of electronic plug-in modules towards integration, modularization and high performance, the heat consumption of electronic plug-ins and machine cases is higher and higher. The traditional air cooling / liquid cooling cannot meet the heat dissipation demand or needs large cooling resources and high heat dissipation cost. In order to solve the heat dissipation problem of high heat consumption electronic plug-ins, a two-phase flow high-efficiency heat dissipation means is used to meet the heat dissipation demand.

[0003] At present, machine cases generally adopt forced air cooling or single-phase liquid cooling heat dissipation. The machine case adopting air cooling heat dissipation mode can meet the heat dissipation demand of a single plug-in with a maximum heat consumption of about 150W and a single machine case with a maximum heat consumption of about 800W under the premise of using a heat plate heat dissipation shell. The machine case adopting single-phase liquid cooling can meet the heat dissipation demand of a single plug-in with a maximum heat consumption of about 200W and a single machine case with a maximum heat consumption of about 1500W. With the increasing power of electronic plug-in boards, the heat consumption is also increasing. The heat consumption of a single module can reach 250-300W, and the heat consumption of the entire 6U machine case can reach 2500W or more. The air cooling and single-phase liquid cooling machine case cannot meet the heat dissipation demand.

[0004] Therefore, it is necessary to provide a gas-liquid two-phase boiling heat exchange machine case to solve the above problems. SUMMARY

[0005] The present application provides a gas-liquid two-phase boiling heat exchange machine case to solve the existing problems.

[0006] The gas-liquid two-phase boiling heat exchange machine case provided by the present application adopts the following technical scheme, comprising:

[0007] A square frame body comprising a front panel, a rear panel, a left side plate and a right side plate; a total-distribution-total type flow channel is arranged in the front panel and the rear panel, the total-distribution-total type flow channel is a lower liquid total flow channel and an upper gas total flow channel, and the lower liquid total flow channel and the upper gas total flow channel are connected through a plurality of distribution channels; a liquid working medium flow channel is arranged in the left side plate, and the liquid working medium flow channel connects the lower liquid total flow channels of the front panel and the rear panel; a gas working medium flow channel is arranged in the right side plate, and the gas working medium flow channel connects the upper gas total flow channels of the front panel and the rear panel; wherein, two fluid connectors are further arranged on the front panel, and the fluid connectors are respectively communicated with the inlet of the lower liquid total flow channel and the outlet of the upper gas total flow channel of the front panel, wherein, the lower liquid total flow channel and the distribution channels are filled with liquid cooling working medium;

[0008] A plurality of slots are arranged on the opposite surfaces of the front panel and the rear panel in one-to-one correspondence.

[0009] A wiring rack is arranged between opposite sides of the front panel and the rear panel near the bottom;

[0010] And a connector panel is arranged between opposite sides of the front panel and the rear panel near the top.

[0011] Preferably, the two fluid connectors are diagonally arranged on the front panel, wherein the fluid connector connected with the inlet of the lower liquid main flow channel is lower than the fluid connector connected with the inlet of the upper liquid main flow channel.

[0012] Preferably, the fluid connector connected with the inlet of the upper liquid main flow channel has a larger diameter than the fluid connector connected with the inlet of the lower liquid main flow channel.

[0013] Preferably, a plurality of turbulence columns are arranged in the sub-flow channel.

[0014] Preferably, the plurality of turbulence columns are staggered in each sub-flow channel, and the turbulence columns are water-drop-shaped turbulence columns.

[0015] Preferably, the slots are divided into 5HP plug-in plug-in areas, 10HP plug-in plug-in areas, electronic module direct mounting areas and connector panel areas according to functions and card widths.

[0016] Preferably, the upper liquid main flow channel and the gas working medium flow channel are both right-angled trapezoidal channels, the right angle of the right-angled trapezoidal channel is parallel to the bottom edge of the front panel, wherein the small port of the right-angled trapezoidal channel of the right side plate is in communication with the large port of the right-angled trapezoidal channel of the rear panel; and the large port of the right-angled trapezoidal channel of the right side plate is in communication with the large port of the right-angled trapezoidal channel of the front panel.

[0017] Preferably, one shock absorber is arranged at each of the four corners of the bottom of the square frame body.

[0018] Preferably, O-shaped sealing rings are arranged at the flow channel connection ports between the front panel and the left side plate, between the left side plate and the rear panel, and between the rear panel and the right side plate.

[0019] The beneficial effects of the present application are:

[0020] 1. The case of the present application adopts gas-liquid phase change cooling technology, that is, the internal flow channels of the front side plate and the rear side plate are total-sub-total flow channels, the flow resistance is low, water-drop turbulence columns are arranged in the sub-flow channels of the total-sub-total flow channels, the cooling medium is gasified after entering the front side plate, the phase change process utilizes the gasification of the cooling medium for heat dissipation, the heat exchange capacity is strong, the flow demand is small, the temperature uniformity is better, and the heat dissipation capacity of the entire case can reach more than 3000W, and the heat dissipation capacity of each slot can reach 250W~300W.

[0021] 2. The internal flow channels of the front and rear side plates are total-distribution-total flow channels with low flow resistance. Water droplet disturbance columns are arranged in the branch flow channels of the total-distribution-total flow channels, which are beneficial to the separation and rising of bubbles after phase change of the refrigerant and do not cause gas blockage. After phase change of the refrigerant, the volume expands, the area of the gas total flow channel at the upper part of the flow direction becomes larger, the gas bayonet type fluid connector has a larger diameter than the liquid bayonet type fluid connector, and this is beneficial to the flow of the gas. The internal flow channels of the entire cabinet are simple and have low flow resistance.

[0022] 3. The front and rear side plates are provided with insertion slots, which are divided into 5HP plug-in plug-in areas, 10HP plug-in plug-in areas, electronic module direct mounting areas and connector adapter panel areas according to functions and card widths, so as to be used for installation of different sizes and function modules, and have strong versatility. In addition, the square frame bottom is provided with a shock absorber, which can meet various vibration use environments and has good environmental adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of a gas-liquid two-phase boiling heat exchange cabinet of the present application.

[0025] Figure 2 It is a gas-liquid two-phase flow direction diagram of the internal flow of a gas-liquid two-phase boiling heat exchange cabinet of the present application.

[0026] Figure 3 It is a three-dimensional axonometric drawing of the front side plate of the present application.

[0027] Figure 4 It is an internal flow channel diagram of the front side plate of the present application.

[0028] Figure 5 It is a three-dimensional axonometric drawing of the rear side plate of the present application.

[0029] Figure 6 It is an internal flow channel diagram of the rear side plate of the present application.

[0030] Figure 7 It is a partial enlarged view of the water droplet disturbance column in the branch flow channel of the present application.

[0031] Figure 8 It is a three-dimensional axonometric drawing of the left side plate of the present application.

[0032] Figure 9 It is an internal flow channel diagram of the left side plate of the present application.

[0033] Figure 10 A three-dimensional axonometric view of the right side plate of the present application;

[0034] Figure 11 An internal flow channel view of the right side plate of the present application.

[0035] In the figure: 1, front side plate; 2, rear side plate; 3, left side plate; 4, right side plate, 5, O-shaped sealing ring; 6, shock absorber; 7, liquid bayonet fluid connector; 8, gas bayonet fluid connector; 9, handle; 10, wiring rack; 101, adapter panel; 11, first lower interface; 12, first slot; 13, first upper interface; 14, first lower liquid total flow channel; 15, first sub-flow channel; 16, first upper gas total flow channel; 17, air bubble; 18, spoiler column; 21, second lower interface; 22, second slot; 23, second upper interface; 24, second lower liquid total flow channel; 25, second sub-flow channel; 26, second upper gas total flow channel; 31, liquid working medium flow channel; 41, gas working medium flow channel. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] An embodiment of a gas-liquid two-phase boiling heat transfer machine case of the present application, as shown in Figure 1 , includes a square frame, a wiring rack 10, an adapter panel 101, and a plurality of slots. The square frame includes a front panel 1, a rear panel 2, a left side plate 3, and a right side plate 4. The front panel 1 and the rear panel 2 are both provided with total-sub-total type flow channels. The total-sub-total type flow channels are lower liquid total flow channels and upper gas total flow channels, and the lower liquid total flow channels and the upper gas total flow channels are connected by a plurality of sub-flow channels. Figure 8 Figure 9 As shown in Figure 10 Figure 11 ​​As shown, a gas working fluid channel 41 is provided inside the right side panel 4, which connects to the upper gas main channel of the front panel 1 and the rear panel 2. The front panel 1 also has two fluid connectors, which are connected to the inlet of the lower liquid main channel and the outlet of the upper gas main channel, respectively. Cooling fluid flows through the lower liquid main channel and the branch channels. The highest liquid level of the cooling fluid is at the connection point between the branch channel and the upper gas main channel. Below the connection point is the liquid working fluid immersion area, and above it is the upper gas main channel where the gas working fluid gathers after the liquid undergoes a phase change due to heating. Multiple slots are correspondingly arranged on the opposite surfaces of the front panel 1 and the rear panel 2, as shown... Figure 3 As shown, a first slot 12 is provided on the front panel 1, and a second slot 22 is provided on the rear panel 2. The slots are divided into a 5HP plug-in area, a 10HP plug-in area, an electronic module direct mounting area, and a connector adapter panel area according to their functions and board width. The cable tray 10 is located between the opposite surfaces near the bottom of the front panel 1 and the rear panel 2. The adapter panel 101 is located between the opposite surfaces near the top of the front panel 1 and the rear panel 2.

[0038] like Figure 3 As shown, in this embodiment, the lower liquid main flow channel of the front panel 1 is connected to the inlet of the liquid working fluid flow channel 31 of the left side plate 3 through the first lower interface 11, and the upper gas main flow channel of the front panel 1 is connected to the outlet of the gas working fluid flow channel 41 of the right side plate 4 through the first upper interface 13; as Figure 5 As shown, the lower liquid main flow channel of the rear panel 2 is connected to the outlet of the liquid working medium flow channel 31 of the left side plate 3 through the second lower interface 21, and the upper gas main flow channel of the rear panel 2 is connected to the inlet of the gas working medium flow channel 41 of the right side plate 4 through the second upper interface 23.

[0039] like Figure 4 As shown, in this embodiment, the main-branch flow channel of the front panel 1 includes a first lower liquid main flow channel 14, a plurality of first branch flow channels 15, and a first upper gas main flow channel 16. The first lower liquid main flow channel 14 is horizontally disposed inside the front panel 1 near the lower end, and the first upper gas main flow channel 16 is disposed inside the front panel 1 near the upper end. The first upper gas main flow channel 16 and the first lower liquid main flow channel 14 are connected by a plurality of vertically disposed first branch flow channels 15. Figure 6 As shown, in this embodiment, the main-branch flow channel of the rear panel 2 includes a second lower liquid main flow channel 24, a plurality of second branch flow channels 25, and a second upper gas main flow channel 26. The second lower liquid main flow channel 24 is horizontally disposed inside the rear panel 2 near the lower end, and the second upper gas main flow channel 26 is disposed inside the rear panel 2 near the upper end. The second upper gas main flow channel 26 and the second lower liquid main flow channel 24 are connected through a plurality of vertically disposed second branch flow channels 25.

[0040] As Figure 1 shown, the two fluid connectors are a liquid bayonet fluid connector 7 and a gas bayonet fluid connector 8, the bayonet fluid connectors 7 and 8 are diagonally arranged on the front panel 1, the liquid bayonet fluid connector 7 is in communication with the lower liquid total flow of the front panel 1, and the gas bayonet fluid connector 8 is in communication with the upper liquid total flow of the front panel 1, wherein the liquid bayonet fluid connector 7 is lower than the gas bayonet fluid connector 8, and the pass diameter of the gas bayonet fluid connector 8 is greater than that of the liquid bayonet fluid connector 7.

[0041] As Figure 6 and Figure 7 shown, a plurality of turbulence columns 18 are arranged in the shunt channel, and the plurality of turbulence columns 18 are staggered in each shunt channel. In this embodiment, the turbulence column 18 adopts a water droplet-shaped turbulence column, which is beneficial to the separation of the bubble 17 after the phase change of the liquid working medium and reduces the upward resistance.

[0042] As Figure 4 , Figure 6 and Figure 11 shown, the upper liquid total flow channel and the gas working medium flow channel 41 are both right-angled trapezoidal channels, and the right angle of the right-angled trapezoidal channel is parallel to the bottom edge of the front panel 1, wherein the small port of the right-angled trapezoidal channel of the right side plate 4 is in communication with the large port of the right-angled trapezoidal channel of the rear panel 2; the large port of the right-angled trapezoidal channel of the right side plate 4 is in communication with the large port of the right-angled trapezoidal channel of the front panel 1, that is, the upper gas total flow channel in this embodiment adopts a right-angled trapezoidal channel, that is, the area of the flow channel gradually increases, which is beneficial to the flow of gas. Secondly, as Figure 4 and Figure 6 shown, the first upper gas total flow channel 16 in the front panel 1 is higher than the second upper gas total flow channel 26 of the rear panel 2, that is, the working medium highest liquid level line is the top end of the shunt channel of the front panel 1, and the working medium lowest liquid level line is the top end of the shunt channel of the rear panel 1.

[0043] As Figure 1 shown, one shock absorber 6 is arranged at each of the four corners of the square frame body, and a handle 9 is further arranged.

[0044] As Figure 8 , Figure 9 , Figure 10 and Figure 11 shown, the flow channel connection ports between the front panel 1 and the left side plate 3, the flow channel connection ports between the left side plate 3 and the rear panel 2, and the flow channel connection ports between the rear panel 2 and the right side plate 4 are all provided with an installation groove of an O-shaped sealing ring 5, and the O-shaped sealing ring 5 is arranged in the installation groove.

[0045] Working principle

[0046] In use, as shown in Figure 2 , Figure 4 and Figure 6 , in this embodiment, the liquid cooling medium uses R134a refrigerant, it should be noted that the medium is stored in a high-pressure tank in a liquid state, and is communicated to the liquid bayonet fluid connector 7 through the outlet tank of the high-pressure tank, that is, the medium enters the case from the liquid bayonet fluid connector 7, enters the lower liquid main passage of the front panel 1 and enters the branch passage, absorbs heat inside the branch passage to undergo phase change and gasification, the other route enters the lower liquid main passage of the rear panel 2 through the liquid medium flow passage 31 of the left side panel 3 and enters the branch passage, the liquid medium absorbs heat to gasify to generate bubbles 17, the bubbles 17 enter the upper gas main passage from the branch passage, then the bubbles 17 in the upper gas main passage of the rear panel 2 flow out from the gas bayonet fluid connector 8 through the gas medium flow passage 41 of the right side panel 4, the bubbles 17 in the upper gas main passage of the front panel 1 flow out from the gas bayonet fluid connector 8, thereby realizing heat exchange.

[0047] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gas-liquid two-phase boiling heat exchanger tank characterized by, The application relates to a square frame body which comprises a front panel (1), a back panel (2), a left side panel (3) and a right side panel (4); the front panel (1) and the back panel (2) are provided with a total-distribution-total type flow channel; the total-distribution-total type flow channel is a lower liquid total flow channel and an upper gas total flow channel; the lower liquid total flow channel and the upper gas total flow channel are connected through a plurality of distribution channels; the left side panel (3) is provided with a liquid working medium flow channel (31) which is connected with the lower liquid total flow channels of the front panel (1) and the back panel (2); the right side panel (4) is provided with a gas working medium flow channel (41) which is connected with the upper gas total flow channels of the front panel (1) and the back panel (2); the front panel (1) is further provided with two fluid connectors which are respectively communicated with the inlet of the lower liquid total flow channel and the outlet of the upper gas total flow channel of the front panel (1); the lower liquid total flow channel and the distribution channels are filled with liquid cooling working medium; a plurality of slots are arranged on the opposite surfaces of the front panel (1) and the back panel (2) in one-to-one correspondence; a wiring rack (10) is arranged between the opposite surfaces close to the bottom of the front panel (1) and the back panel (2); an adapter panel (101) is arranged between the opposite surfaces close to the top of the front panel (1) and the back panel (2); the two fluid connectors are diagonally arranged on the front panel (1), wherein the fluid connector connected with the inlet of the lower liquid total flow channel is lower than the fluid connector connected with the outlet of the upper gas total flow channel; the diameter of the fluid connector connected with the outlet of the upper gas total flow channel is larger than that of the fluid connector connected with the inlet of the lower liquid total flow channel; a plurality of turbulence columns (18) are arranged in the distribution channels, the plurality of turbulence columns (18) are arranged in each distribution channel in a staggered mode, and the turbulence column (18) adopts a water-drop-shaped turbulence column; the upper gas total flow channel and the gas working medium flow channel (41) are both straight-angle trapezoidal channels, the straight-angle of the straight-angle trapezoidal channel is parallel to the bottom side of the front panel (1), wherein the small port of the straight-angle trapezoidal channel of the right side panel (4) is communicated with the large port of the straight-angle trapezoidal channel of the back panel (2); the large port of the straight-angle trapezoidal channel of the right side panel (4) is communicated with the large port of the straight-angle trapezoidal channel of the front panel (1). The slots are divided into five HP plug-in connection areas, 10 HP plug-in connection areas, electronic module direct mounting areas and connector adapter panel areas according to functions and card widths. One shock absorber (6) is arranged at each corner of the bottom of the square frame body. O-shaped sealing rings (5) are arranged at the flow channel connection ports between the front panel (1) and the left side panel (3), between the left side panel (3) and the back panel (2) and between the back panel (2) and the right side panel (4). The liquid cooling working medium adopts 134a refrigerant. ​ ​ 2. The gas-liquid two-phase flow boiling heat exchanger tank according to claim 1, characterized in that, ​ 3. The gas-liquid two-phase flow boiling heat exchanger tank according to claim 1, characterized in that, ​ 4. The gas-liquid two-phase flow boiling heat exchanger tank according to claim 1, characterized in that, ​ 5. The gas-liquid two-phase flow boiling heat exchanger tank according to claim 1, characterized in that, ​

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