A heat dissipation device and method for electronic equipment working for a long time in a closed environment

Abstract

The application relates to a heat dissipation device and method for electronic equipment working for a long time in a closed environment, and belongs to the technical field of electronic equipment heat dissipation, and solves the problem of low working efficiency caused by the difficulty in heat dissipation of a closed box in the prior art. The application comprises a closed box, an air duct shunt and an external cold air loop unit, one end of the air duct shunt is arranged on one side surface of the closed box and communicates with the inside of the closed box, and the external cold air loop unit communicates with the other end of the air duct shunt. The application has good heat dissipation effect and high equipment working efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electronic equipment heat dissipation technology, and in particular to an electronic equipment heat dissipation device and method for long-time operation in a closed environment. BACKGROUND

[0002] Based on the electronic equipment in the closed box, due to the technical requirements of electromagnetic shielding and microwave interference shielding, the box cannot be opened to dissipate heat, and high-power heat dissipation equipment cannot be installed inside the box. Therefore, in the closed box, the long-time heat dissipation of each large heat subunit is a difficult point in structural design and simulation.

[0003] In the closed state of the box, each large heat subunit inside cannot be well cooled, and can only work for about 30 minutes, which cannot meet the overall requirement of long-term work, resulting in that the overall cannot test all data at one time in the normal temperature debugging, calibration debugging and flight test, and the work efficiency is relatively low.

[0004] Therefore, based on the characteristics of the internal heat generation of each subunit in the closed box, the volume is limited and the heat dissipation is difficult, the traditional and conventional cold air blower cannot be directly used, which leads to that the chips of each subunit in the electronic cabin cannot work for a long time in the normal temperature debugging and flight, the work efficiency is low, and the progress of scientific research and production is affected. SUMMARY

[0005] In view of the above analysis, the embodiments of the present application aim to provide an electronic equipment heat dissipation device and method for long-time operation in a closed environment, to solve the problem of low work efficiency caused by the difficulty of heat dissipation of the existing closed box.

[0006] In one aspect, the present application provides an electronic equipment heat dissipation device for long-time operation in a closed environment, comprising a closed box, a air duct diverter and an external cold air loop unit, one end of the air duct diverter is arranged on one side of the closed box and communicates with the inside thereof, and the external cold air loop unit communicates with the other end of the air duct diverter.

[0007] Further, the closed box is provided with a first connecting portion, and the first connecting portion communicates with the internal space of the closed box.

[0008] Further, the air duct diverter comprises a second connecting portion and a disc portion, the second connecting portion is arranged on one side of the disc portion and connected with the first connecting portion.

[0009] Further, the inner cavity of the second connecting portion communicates with the inner cavity of the first connecting portion.

[0010] Further, the other side of the disc part is provided with an air inlet and an air outlet, and the air inlet and the air outlet are communicated with the inner cavity of the second connecting part.

[0011] Further, the disc part is further provided with a threading hole.

[0012] Further, the closed box body is provided with an extension unit, and the extension units are arranged at intervals along the length direction of the closed box body.

[0013] Further, the gap between the top of the extension unit and the inner wall of the closed box body is a top air inlet, and the gap between the bottom of the extension unit and the inner wall of the closed box body is a bottom air outlet.

[0014] Further, the gap between the side of the extension unit and the inner wall of the closed box body is a side gap, and the gap between adjacent extension units is an extension unit gap.

[0015] On the other hand, the application provides a heat dissipation method for electronic equipment working for a long time in a closed environment, which adopts the heat dissipation device for electronic equipment working for a long time in a closed environment, and the steps include:

[0016] Step S1: assembling an external high-pressure air cooling loop system;

[0017] Step S2: assembling the high-pressure air cooling loop system with the closed box body, the debugging tool or the hanging flight tool;

[0018] Step S3: air cooling heat dissipation.

[0019] Compared with the prior art, the application can at least realize one of the following beneficial effects:

[0020] (1) The application connects the closed box body and the external air cooling loop unit through the air duct diverter, so that a large amount of heat generated by the electronic equipment (extension unit) in the closed box body can be taken out through the external air cooling loop, effectively reducing the temperature in the closed box body and improving the working efficiency.

[0021] (2) The application separates the air inlet and the air outlet on the two sides of the air baffle on the air duct diverter, so that the high-pressure air entering the air duct diverter does not directly communicate with the air outlet, avoiding the large amount of high-pressure air just blown in from the air outlet, and improving the heat dissipation effect in the closed box body.

[0022] (3) The application can selectively set the external air cooling loop unit according to the use occasion, expanding the application range; the closed box body of the application is provided with a liquid cooling system, which can further improve the heat dissipation effect of the closed box body in combination with the air cooling system.

[0023] The technical solutions in the present application can be combined with each other to realize more preferred combination solutions. Other features and advantages of the present application will be described in the following description, and some advantages will become apparent from the description, or can be understood by implementing the present application. The objects and other advantages of the present application can be realized and obtained by the contents particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings are included to provide a further understanding of the present application, and are incorporated herein and constitute a part of the detailed description. The drawings illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application. In the drawings:

[0025] Figure 1 Structure diagram of the heat dissipation device of the specific embodiment;

[0026] Figure 2 Structure diagram of the heat dissipation device of the specific embodiment without the air outlet connecting device;

[0027] Figure 3 Structure diagram of the heat dissipation device of the specific embodiment without the air outlet connecting device and the air cooler;

[0028] Figure 4 Connection diagram of the closed box and the air duct shunt of the specific embodiment;

[0029] Figure 5 Sectional view of the closed box of the specific embodiment;

[0030] Figure 6 Sectional view of the closed box and the air duct shunt of the specific embodiment;

[0031] Figure 7 Structure diagram of the air duct shunt of the specific embodiment (I);

[0032] Figure 8 Structure diagram of the air duct shunt of the specific embodiment (II).

[0033] Reference signs:

[0034] 1-closed box; 11-first connecting part; 12-top air inlet duct; 13-bottom air outlet duct; 14-side gap; 15-telephone set unit gap; 16-side wall; 2-air duct shunt; 21-second connecting part; 22-disc part; 23-air inlet; 24-air outlet; 25-threading hole; 26-air separation plate; 27-air inlet cavity; 28-air outlet cavity; 3-external air cooler circuit unit; 31-first long air duct; 32-first variable-diameter adapter pipe; 33-first turbocharger; 34-air cooler; 35-bent air duct; 36-second long air duct; 37-second variable-diameter adapter pipe; 38-second turbocharger;

[0035] 100 - extension unit; 200 - debug or flight test harness. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present application will be described in detail with reference to the drawings, in which:

[0037] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the term "connected" should be understood in a broad sense, for example, it can be fixedly connected, or detachably connected, or integrally connected, it can be mechanically connected, or electrically connected, it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above-mentioned term in the present application can be understood according to the specific circumstances.

[0038] The terms "top", "bottom", "above", "under" and "on" used throughout the description are relative positions of the components of the device, for example, the relative positions of the top and bottom substrates inside the device. It can be understood that the device is multifunctional, regardless of their orientation in space.

[0039] Example 1

[0040] One specific embodiment of the present application, as shown in Figures 1-8 A heat dissipation device for electronic equipment working for a long time in a closed environment is disclosed, which comprises a closed box 1, an air duct diverter 2 and an external cold air circuit unit 3. One end of the air duct diverter 2 is arranged on one side of the closed box 1 and communicates with the inside of the closed box 1. The external cold air circuit unit 3 communicates with the other end of the air duct diverter 2.

[0041] The closed box 1 is provided with extension units 100 (i.e. electronic equipment), and a plurality of extension units 100 are arranged in the closed box 1 and are spaced apart. Preferably, the extension units 100 are uniformly and spaced apart arranged in the closed box 1.

[0042] Since the closed box 1 is a closed environment, the extension units 100 arranged inside the closed box 1 will generate a large amount of heat during long-time debugging, calibration debugging and flight test. If the heat cannot be dissipated, the extension units 100 will not be able to work for a long time. Therefore, the heat generated by the extension units 100 needs to be dissipated to ensure that they can operate for a long time in a closed environment.

[0043] In this embodiment, the closed box 1 is a rectangular box, and the extension units 100 are uniformly arranged perpendicular to the length direction of the rectangular box.

[0044] The first connecting part 11 is provided on the side of the closed box 1 parallel to the extension unit 100, and is in communication with the internal space of the closed box 1. Preferably, the first connecting part 11 is in a cylindrical structure.

[0045] In order to facilitate the heat dissipation in the closed box 1, there is a gap between the extension unit 100 and the inner wall of the closed box 1.

[0046] Specifically, the gap between the top of the extension unit 100 and the inner wall of the closed box 1 is the top air inlet 12, the gap between the bottom of the extension unit 100 and the inner wall of the closed box 1 is the bottom air outlet 13, and the gap between the side of the extension unit 100 and the inner wall of the closed box 1 is the side gap 14. The gap between the extension units 100 is the extension unit gap 15.

[0047] It is worth noting that the extension unit 100 is clamped with the closed box 1, and there is a gap between the four sides and the inner wall of the closed box 1, rather than one or more sides being completely attached to the closed box 100.

[0048] The air duct diverter 2 includes a second connecting part 21 and a disc part 22, the second connecting part 21 is provided on one side of the disc part 22 and is connected with the first connecting part 11. Preferably, the second connecting part 21 is in a cylindrical structure.

[0049] The projection of the second connecting part 21 towards the disc part 22 is a part of the disc part 22. When the second connecting part 21 is in a cylindrical structure, the outer diameter of the second connecting part 21 is smaller than the diameter of the disc part 22, and the second connecting part 21 is concentric with the disc part 22.

[0050] In this embodiment, there are two ways to connect the first connecting part 11 and the second connecting part 21: the first way is that the first connecting part 11 is sleeved on the outside of the second connecting part 21, and the inner diameter of the first connecting part 11 is equal to the outer diameter of the second connecting part 21; the second way is that the first connecting part 11 is sleeved on the inside of the second connecting part 21, and the outer diameter of the first connecting part 11 is equal to the inner diameter of the second connecting part 21. Preferably, the first connecting part 11 is sleeved on the outside of the second connecting part 21.

[0051] Understandably, the first connecting part 11 and the second connecting part 21 are provided with connecting holes along the radial direction, and the two are connected together by bolts, and in order to avoid air leakage, rubber gaskets are provided at the connection between the two.

[0052] The other side of the disc part 22 is provided with air inlets 23, and the air inlets 23 are at least two, the air inlets 23 are formed by a first cylinder, and are in communication with the inner cavity of the second connecting part 21. Preferably, in this embodiment, two air inlets 23 are provided on the disc part 22.

[0053] In order to make the air flow in the closed box 1 form a cycle, further improve the heat dissipation effect, the other side of the disc 22 is also provided with an air outlet 24, the air outlet 24 and the air inlet 23 are on the same side of the disc part 22, the air outlet 24 is formed by the second cylinder, and is in communication with the inner cavity of the second connecting part 21.

[0054] In this embodiment, in order to increase the wind pressure and improve the heat dissipation effect in the closed box 1, two air inlets 23 and one air outlet 24 are arranged on the disc part 22, the diameters of the air inlets 23 and the air outlet 24 are equal, and the two air inlets 23 and the air outlet 24 are arranged at intervals of 120°.

[0055] Further, in order to further improve the heat exchange efficiency in the closed box 1, the air inlet 23 is made into a horn mouth with a necked middle part, and the air outlet 24 is made into a horn mouth with a large outer diameter and a small inner diameter. The direction close to the disc part 22 is defined as the inner part.

[0056] Considering that the extension unit 100 is connected with a cable, the cable needs to pass out of the closed box 1 and be connected with external equipment, a threading hole 25 is further arranged on the disc part 22, and the threading hole 25 is in communication with the inner cavity of the second connecting part 21.

[0057] In order to avoid that a large proportion of the high-pressure wind just flows out of the air outlet 24 after entering the air duct diverter 2, which is not conducive to the heat dissipation in the closed box 1, the air duct diverter 2 further comprises an air baffle 26, and the air baffle 26 is arranged in the inner cavity of the second connecting part 21.

[0058] Specifically, the air baffle 26 divides the inner cavity of the second connecting part 21 into two parts, which are an air inlet cavity 27 and an air outlet cavity 28, the air inlet 23 is in communication with the air inlet cavity 27, and the air outlet 24 is in communication with the air outlet cavity 28.

[0059] In this embodiment, by arranging the air baffle 26 on the air duct diverter 2, the air inlet 23 and the air outlet 24 are separated on the two sides of the air baffle 26, so that the high-pressure wind entering the air duct diverter 2 does not directly communicate with the air outlet 24, and most of the high-pressure wind entering from the air inlet 24 can enter the closed box 1, take out the heat generated by the extension unit 100, and then flow out of the air outlet 24, which is conducive to the heat dissipation in the closed box 1.

[0060] It is worth noting that, in this embodiment, the threading hole 25 and the air outlet 24 are separated on the same side by the air baffle 26, that is, the threading hole 25 is in communication with the air outlet cavity 28.

[0061] For the setting of the air baffle 26, the length of the air baffle 26 is not less than the length of the second connecting part 21, but also does not contact the adjacent extension unit 100 arranged in the closed box 1. Preferably, the length of the air baffle 26 is equal to the distance from the disc part 22 to the inner wall of the closed box 1. That is, the end surface of the air baffle 26 is flush with the inner wall of the closed box 1.

[0062] When the first connecting part 11 is sleeved outside the second connecting part 21, the air baffle 26 is attached to the inner wall of the second connecting part 21; when the first connecting part 11 is sleeved inside the second connecting part 21, the air baffle 26 is provided with a gap with the inner wall of the second connecting part 21, and the size of the gap is the wall thickness of the first connecting part 11. In this structure, after the first connecting part 11 and the second connecting part 21 are connected, the air baffle 26 is just attached to the inner wall of the first connecting part 11.

[0063] In this embodiment, the formation of the air duct inside the closed box 1 is as follows:

[0064] In order to avoid that the high-pressure air just entering the closed box 1, a large proportion of the high-pressure air flows out through the air outlet 24, by adding the air baffle 26, the inner cavity of the air duct flow divider 2 is divided into two cavities, one is the air inlet cavity 27, and the other is the air outlet cavity 28; After the high-pressure air enters the air inlet cavity 27 through the air inlet 23, it circulates along the top air inlet duct 12 and continuously flows into the surface of each large heat extension unit 100 in the closed box 1. Since the top air inlet duct 12, the extension unit gap 15, the side gap 14 and the bottom air outlet duct 13 are interconnected, the high-pressure air continuously circulates from top to bottom, and exchanges heat with the surface of the extension unit 100 through high-speed convection, and then the heat is discharged through the bottom air outlet duct 13, and finally the heat is brought to the air outlet cavity 28 and discharged through the air outlet 24.

[0065] In this embodiment, the gap formed between the extension units 100 (the extension unit gap 15), the gap formed by the whole machine assembly (i.e. the top air inlet duct 12, the bottom air outlet duct 13 and the side gap 14), and the external high-pressure cold air loop system (the external cold air loop unit 3) constitute the whole air cooling system, which is suitable for the heat dissipation of the electronic equipment in the closed box in the state of long-time debugging, calibration and hanging flight.

[0066] The external cold air loop unit 3 includes a first long air pipe 31, a first variable-diameter adapter pipe 32 and a first turbocharger 33. One end of the first long air pipe 31 is connected with the air inlet 23, and the other end is connected with one end of the first variable-diameter adapter pipe 32. The other end of the first variable-diameter adapter pipe 32 is connected with the first turbocharger 33. Specifically, one end of the first long air pipe 31 is connected with the small-diameter end of the first variable-diameter adapter pipe 32, and the large-diameter end of the first variable-diameter adapter pipe 32 is connected with the first turbocharger 33. This case is suitable for hanging flight test.

[0067] The number of the first long air pipe 31, the first variable-diameter adapter pipe 32 and the first turbocharger 33 is the same as the number of the air inlet 23, and in this embodiment, the first long air pipe 31, the first variable-diameter adapter pipe 32 and the first turbocharger 33 are each provided with two.

[0068] Further, the external cold air circuit unit 3 further comprises a cold air fan 34 and a bent air pipe 35, one end of the bent air pipe 35 is in communication with the first turbocharger 33, and the other end is in communication with the cold air fan 34, in this case, the cold air fan 34 provides high-pressure cold air in the closed box 1, and the air outlet 24 is a free air outlet, not connected to other ventilation equipment. The number of the cold air fan 34 and the bent air pipe 35 is the same as the number of the air inlet 23.

[0069] Further, the external cold air circuit unit 3 further comprises a second long air pipe 36, a second variable-diameter adapter pipe 37 and a second turbocharger 38, one end of the second long air pipe 36 is in communication with the air outlet 24, and the other end is in communication with one end of the second variable-diameter adapter pipe 37, the other end of the second variable-diameter adapter pipe 37 is in communication with the second turbocharger 38. Specifically, the second long air pipe 36 is connected with the small-diameter end of the second variable-diameter adapter pipe 37, and the large-diameter end of the second variable-diameter adapter pipe 37 is connected with the second turbocharger 38. This structure is suitable for the case where some subunit units generate more heat.

[0070] Embodiment 2

[0071] In one specific embodiment of the present application, a heat dissipation device for electronic equipment working for a long time in a closed environment is disclosed, which further improves the heat dissipation effect in the closed box 1 by combining liquid cooling with air cooling on the basis of Embodiment 1.

[0072] Specifically, the liquid cooling channel is provided in the side wall 16 of the closed box 1, the liquid cooling channel is S-shaped and covers the side wall 16, the liquid inlet is provided on the upper side of one end of the side wall 16, and the liquid outlet is provided on the lower side of the other end of the side wall 16, both the liquid inlet and the liquid outlet are in communication with the liquid cooling channel, the cooling liquid enters the liquid cooling channel through the liquid inlet, flows from one end to the other end, and then is discharged from the liquid outlet, thereby taking away the heat generated by the subunit 100.

[0073] It should be noted that in this embodiment, the cooling liquid is circulated in the liquid cooling channel to achieve better cooling effect.

[0074] Further, the side wall 16 of the closed box 1 is provided with a heat sink to further improve the heat dissipation effect.

[0075] Embodiment 3

[0076] In one specific embodiment of the present application, as Figures 1-8As shown, a method for cooling electronic equipment for long-term operation in a closed environment is disclosed, based on the above embodiment, the steps include:

[0077] Step S1: Assemble the external high-pressure air cooling loop system;

[0078] Since the air cooler 34 can provide 14℃ cold air in an environment of up to 40℃, and since its wind pressure is small, the first turbocharger 33 is connected in series with the air cooler 34 through the elbow pipe 35, increasing the wind pressure, and then since the diameter of the first turbocharger 33 and the front air duct diverter 2 are different, the first variable-diameter adapter pipe 32 is added to realize the diameter conversion from large to small, and the first long air pipe 31 is connected to the air inlet 23 of the air duct diverter 2, and the air outlet 24 serves as a free air outlet.

[0079] Step S2: Pass all cables of the extension unit 100 through the cable hole 25, and seal them with tape, and fix the air duct diverter 2, the debugging tool or flight tool 200, and the sealed box 1 with screw fasteners to realize the assembly of the high-pressure air cooling loop system, the sealed box 1, and the debugging tool or flight tool 200.

[0080] Step S3: Air cooling.

[0081] The high-pressure cold air is continuously provided by the air cooler 34 and the first turbocharger 33, and enters through the two air inlets 23, and after flowing through the air duct inside the sealed box 1, most of the heat of the extension unit 100 is continuously carried out by the air outlet 24, forming an air cooling loop. In an environment with a temperature of 30℃, after the longest continuous operation for 6h, the actual temperature during normal temperature debugging and passive calibration is measured, and each large heat extension unit has achieved thermal equilibrium, with a maximum temperature of 80℃.

[0082] When flying, because the temperature of the external environment during flight is basically below 10℃, which is lower than the 14℃ cold air provided by the air cooler 34, in order to achieve a lighter weight of the tooling equipment and higher cooling efficiency, the air cooler 34 is removed, and the cold air end is provided by the external air, i.e. the first turbocharger 33 is placed near the aircraft cabin cover, so that the external environment cold air can be continuously supplied to the sealed box 1, forming a more efficient air cooling loop. The actual temperature during flight test is measured, and after 4.5h of continuous operation during flight, each large heat extension unit has achieved thermal equilibrium, with a maximum temperature of 45℃.

[0083] When some branch units with greater heat flux density generate heat, a second air extraction device is needed at the air outlet 24, that is, the air outlet of the second turbocharger 38 is turned 180°, and the air supply of the second turbocharger 38 is changed to air extraction. A second long air pipe 36 is connected to the air outlet 24, and a second variable-diameter adapter pipe 37 is connected to the air extraction outlet of the second turbocharger 38. According to the simulation calculation of the ICEPAK software, the circulating air volume of the air duct inside the closed box body 1 is increased by 0.75 times, and the pressure is increased by about 0.5 times.

[0084] Understandably, when the closed box body 1 is provided with a liquid cooling system, the combination of air cooling and liquid cooling is used to dissipate heat inside the closed box body 1.

[0085] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A heat dissipation device for electronic devices operating for extended periods in a confined environment, characterized in that, It includes a sealed box (1), an air duct splitter (2) and an external cold air circuit unit (3). One end of the air duct splitter (2) is located on one side of the sealed box (1) and communicates with its interior. The external cold air circuit unit (3) is communicated with the other end of the air duct splitter (2). The air duct splitter (2) includes a second connecting part (21), a disc part (22), and an air baffle (26). The second connecting part (21) is located on one side of the disc part (22), and the other side of the disc part (22) is provided with an air inlet (23) and an air outlet (24). The air baffle (26) is located in the inner cavity of the second connecting part (21) and divides the inner cavity of the second connecting part (21) into two parts, namely an air inlet cavity (27) and an air outlet cavity (28). The air inlet (23) is connected to the air inlet cavity (27), and the air outlet (24) is connected to the air outlet cavity (28). The length of the air baffle (26) is equal to the distance from the disc part (22) to the inner wall of the sealed box (1), and the end face of the air baffle (26) is parallel to the inner wall of the sealed box (1). The inner wall of the sealed box (1) is flush; the sealed box (1) is provided with a sub-unit (100), and the sub-unit (100) is arranged at intervals along the length of the sealed box (1); the gap between the top of the sub-unit (100) and the inner wall of the sealed box (1) is the top air inlet duct (12), and the gap between the bottom of the sub-unit (100) and the inner wall of the sealed box (1) is the bottom air outlet duct (13); after the high-pressure air enters the air inlet cavity (27) through the air inlet (23), it flows continuously into the surface of each sub-unit (100) in the sealed box (1) along the top air inlet duct (12), and the heat flows out from the bottom air outlet duct (13) and is discharged from the air outlet (24).

2. The heat dissipation device for electronic devices operating for extended periods in a sealed environment according to claim 1, characterized in that, The sealed box (1) is provided with a first connecting part (11), which is connected to the internal space of the sealed box (1).

3. The heat dissipation device for electronic devices operating for extended periods in a sealed environment according to claim 2, characterized in that, The second connecting part (21) is connected to the first connecting part (11).

4. The heat dissipation device for electronic devices operating for extended periods in a sealed environment according to claim 3, characterized in that, The inner cavity of the second connecting part (21) is connected to the inner cavity of the first connecting part (11).

5. The heat dissipation device for electronic devices operating for extended periods in a sealed environment according to claim 3, characterized in that, Both the air inlet (23) and the air outlet (24) are connected to the inner cavity of the second connecting part (21).

6. The heat dissipation device for electronic devices operating for extended periods in a sealed environment according to claim 3, characterized in that, The disc portion (22) is also provided with a thread hole (25).

7. The heat dissipation device for electronic devices operating for extended periods in a sealed environment according to claim 1, characterized in that, The gap between the side of the sub-unit (100) and the inner wall of the sealed box (1) is called the side gap (14), and the gap between adjacent sub-units (100) is called the sub-unit gap (15).

8. A heat dissipation method for electronic devices operating for extended periods in a confined environment, characterized in that, The heat dissipation device for electronic devices operating for extended periods in a sealed environment, as described in any one of claims 1-7, comprises the following steps: Step S1: Assemble the external high-pressure air-cooled circuit system; Step S2: Assembly of the high-pressure air-cooled circuit system with the sealed enclosure (1) and the commissioning fixture or hanger fixture (200); Step S3: Air cooling.

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