A prefabricated data center windwall cooling system

Abstract

The application discloses a prefabricated data center wind wall cooling system, and relates to the technical field of data center cooling. The system has the advantages of short and direct cooling path, complete separation of cold and hot air flow, high prefabrication degree and rapid deployment. The technical scheme is as follows: the system comprises a wind wall module, at least two wind wall modules are arranged oppositely, at least one channel module is arranged between the two wind wall modules, one channel module comprises two prying block structures arranged side by side, each prying block structure in the channel module comprises an IT prying block and a bridge prying block fixed above the IT prying block, the front side and the back side of the two IT prying blocks are connected through openable and closable sealing doors, so that a heat collection cavity is formed between the two IT prying blocks, and one exhaust pipe is fixedly connected between the two bridge prying blocks, the exhaust pipe extends along the top of the bridge prying block and seals the top opening of the heat collection cavity.

Description

Technical Field

[0001] This invention relates to the field of data center cooling technology, specifically a prefabricated data center air wall cooling system. Background Technology

[0002] Prefabricated data centers are gradually becoming the mainstream model for data center construction due to their advantages such as rapid deployment and flexible expansion. Among them, skids, as the basic functional units of prefabricated data centers, play a core role in equipment integration and rapid deployment. A skid in a prefabricated data center is a functional module that integrates IT cabinets, power supply systems, cooling units, and supporting pipelines on a steel base. Its internal components form a complete system through pre-installed cables, optical cables, and pipelines, and it reserves standardized power, network, and pipeline quick interfaces. During on-site installation, only simple leveling of the foundation is required. The functional skids are hoisted into place one by one using a crane, and mechanical connections are completed through fasteners. External pipelines and cables can be quickly plugged in or flanged to achieve "plug and play" deployment. In the installation area, skids with different functions are combined and arranged to quickly form a supercomputing cluster.

[0003] However, the skid-mounted structure used in existing prefabricated data centers typically follows the traditional air conditioning layout for computer rooms, where air conditioning units are installed on the side or bottom of the computer room, and cold air is supplied to the entire computer room space through underfloor or top air supply. This cooling method results in excessively long airflow paths and severe mixing of hot and cold air, which not only reduces cooling efficiency but also leads to higher energy efficiency. Summary of the Invention

[0004] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a prefabricated data center airflow cooling system, which has the advantages of short cooling paths, complete separation of hot and cold airflows, high degree of prefabrication, and rapid deployment.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This invention provides a prefabricated data center airwall cooling system, comprising: airwall modules, at least two of which are arranged opposite to each other; at least one row of channel modules disposed between the two airwall modules, each row of channel modules including two side-by-side skid structures; in each row of channel modules, each skid structure includes an IT skid and a cable tray skid fixed above the IT skid, the front and rear sides of the two IT skids are connected by openable and closable sealing doors, thereby forming a heat collection cavity between the two IT skids; and a row of exhaust ducts is fixedly connected between the two cable tray skids, the exhaust ducts extending along the top of the cable tray skids. The top opening of the heat collection chamber is sealed; a return air duct is fixed above the exhaust duct, with the top end of the exhaust duct connected to the return air duct; a heat exchange device is connected to both ends of the return air duct, with the outlet of the return air duct connected to the hot air inlet of the heat exchange device, and the cold air outlet of the heat exchange device connected to the air inlet of the air wall module; the air wall module, IT skid, heat collection chamber, exhaust duct, return air duct, and heat exchange device form a cooling circulation path, with cooling air being sent from the air wall module to the outside of the IT skid, flowing through the IT skid and becoming hot air, the hot air entering the return air duct through the heat collection chamber and exhaust duct, being cooled by the heat exchange device, and then flowing back to the air wall module.

[0006] By adopting the above technical solution, two air wall modules are arranged on both sides of the channel module, IT skids and cable tray skids are arranged vertically, and the top opening of the heat collection cavity is sealed with exhaust ducts. This forms a directional cooling circulation path where cold air is sent in from both sides of the IT skids, exchanges heat with the cabinets inside the IT skids, and then the hot air rises from the heat collection cavity through the exhaust duct to the return air duct. This reduces the risk of mixing of cold and hot air and airflow short circuits, improves cooling efficiency and airflow uniformity, and reduces the PUE value of the data center.

[0007] Meanwhile, components such as air wall modules, channel modules, and exhaust pipes can be prefabricated in the factory and quickly assembled on site, which greatly shortens the construction cycle. The stacked layout of IT skids and cable tray skids and the openable design of the sealed doors not only make full use of vertical space and make the overall structure more compact, but also facilitate personnel to enter the heat collection chamber for maintenance and repair. Furthermore, by flexibly setting one or more rows of channel structures between the two air wall modules, the cooling capacity can be expanded as needed.

[0008] Preferably, a busbar trough is fixed inside the cable tray skid, a top plate is fixed to the upper part of the cable tray skid, and openable and closable inspection door structures are arranged at intervals on the outer side of the cable tray skid; the cable tray skid, the top plate and the inspection door structures together form a protective cavity to protect the busbar trough.

[0009] Preferably, a first reflector is provided on the inner side of the busbar trunking, the first reflector being inclined upward from the outside to the inside, and the mirror surface of the first reflector facing the inner wall of the busbar trunking; a second reflector is provided on the upper part of the inspection door structure; when the inspection door structure is open, the second reflector is inclined downward from the outside to the inside, and the second reflector is located directly above the first reflector, with the mirror surface of the second reflector facing the busbar trunking, forming a reflected light path for observation between the first reflector and the second reflector; when the inspection door structure is closed, the second reflector is arranged horizontally, with the mirror surface of the second reflector facing downward.

[0010] Preferably, each of the aforementioned inspection door structures has a main inverted L-shaped slide rail fixed on the cable tray pry block on both its front and rear sides; one of the inspection door structures includes an upper inspection plate and a lower inspection plate, the lower end of the upper inspection plate being hinged to the upper end of the lower inspection plate; an upper roller is rotatably connected to the front and rear sides of the upper end of the upper inspection plate, and a lower roller is rotatably connected to the front and rear sides of the lower end of the lower inspection plate; both the upper roller and the lower roller extend into the main inverted L-shaped slide rail on the corresponding side and roll in cooperation with the main inverted L-shaped slide rail.

[0011] Preferably, the upper inspection plate is provided with two secondary inverted L-shaped slide rails, which are respectively fixed to the front and rear sides of the inner wall of the upper inspection plate. The second reflector is disposed between the two secondary inverted L-shaped slide rails. An upper slider is fixed to the front and rear sides of the upper end of the second reflector, and a lower slider is fixed to the front and rear sides of the lower end of the second reflector. Both the upper and lower sliders extend into the corresponding secondary inverted L-shaped slide rails and are slidably connected to the secondary inverted L-shaped slide rails. One end of the inverted L-shaped slide rail is connected to the upper slider by a spring. A push rod that cooperates with the lower slider is fixed on the bridge rack.

[0012] Preferably, a lamp is fixed below the busbar trunking, the lamp is arranged at an angle, and the light emission direction of the lamp is towards the second reflector which is arranged laterally.

[0013] Preferably, a rack is slidably connected to the side of the secondary inverted L-shaped slide rail away from the second reflector, and the rack is fixedly connected to the upper slider; a gear is provided on the side of the rack to mesh with the rack, and the gear is rotatably connected to the side of the secondary inverted L-shaped slide rail away from the second reflector, and a damping pad is fixed on the gear.

[0014] Preferably, a fan is provided at each of the front and rear ends of the protective cavity, and the two fans have the same airflow direction.

[0015] Preferably, an inner side plate is fixed to the inner side of the cable tray skid, the top end of the inner side plate is fixedly connected to the top plate, and the inner side plate has a gap of not less than 3cm with the exhaust pipe; the inner side plate is made of heat insulation material.

[0016] Preferably, the access door structure is made of transparent polycarbonate sheet.

[0017] The beneficial effects of this invention are as follows: By placing two air wall modules on both sides of the channel module, arranging the IT skid and the cable tray skid vertically, and sealing the top opening of the heat collection chamber with an exhaust duct, a directional cooling circulation path is formed where cold air is delivered from both sides of the IT skid, exchanges heat with the cabinets inside the IT skid, and then the hot air rises from the heat collection chamber through the exhaust duct to the return air duct. This reduces the risk of hot and cold air mixing and airflow short-circuiting, improves cooling efficiency and airflow uniformity, and reduces the PUE value of the data center.

[0018] When the maintenance door is opened, the second reflector automatically flips to tilt downwards and forms a reflected light path with the first reflector. This allows technicians standing outside the skid to observe the true condition of the inner wall of the busbar trunking, a blind spot, through two levels of reflection. There is no need to put their body into the maintenance opening or use additional tools. This eliminates the safety hazards caused by blind spots and significantly improves maintenance efficiency. When the maintenance door is closed, the second reflector automatically resets to a horizontal position with the mirror facing downwards. This does not affect the normal closing and sealing function of the maintenance door and also prevents dust from accumulating on the mirror.

[0019] When the access door structure is closed, the light emitted by the lamp is reflected by the second reflector and shines on the ground to form auxiliary lighting for the lower outer part of the IT skid. At the same time, compared with direct top lighting, it can significantly reduce the obstruction of light by the body and tools of maintenance personnel, and form a clear, bright and shadow-free maintenance field of view between narrow passage modules. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a channel module according to an embodiment of the present invention; Figure 3 This is a schematic diagram illustrating the structure of the upper inspection plate according to an embodiment of the present invention; Figure 4 This is a schematic diagram illustrating the structure of the first reflecting mirror according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the inspection door structure just opened according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the fully opened access door structure according to an embodiment of the present invention; Figure 7 This is a schematic diagram illustrating the structure of a spring according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the second reflector arranged horizontally according to an embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures: In the diagram: 1. Air wall module; 2. IT skid; 3. Cable tray skid; 4. Heat collection chamber; 5. Exhaust duct; 6. Sealing door; 7. Return air duct; 8. Heat exchanger; 9. Top plate; 10. First reflector; 11. Second reflector; 12. Main inverted L-shaped slide rail; 13. Upper inspection plate; 14. Lower inspection plate; 15. Upper roller; 16. Secondary inverted L-shaped slide rail; 17. Spring; 18. Top rod; 19. Rack; 20. Gear. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] A prefabricated data center air wall cooling system, such as Figure 1 and Figure 2 and Figure 3The system includes: a wind wall module 1, of which there are at least two wind wall modules 1 arranged opposite each other; at least one row of channel modules located between the two wind wall modules 1, the row of channel modules including two side-by-side skid structures; in the row of channel modules, each skid structure includes an IT skid 2 and a cable tray skid 3 fixed above the IT skid 2, the front and rear sides of the two IT skids 2 being connected by openable and closable sealing doors 6, thereby forming a heat collection chamber 4 between the two IT skids 2; a row of air ducts 5 fixedly connected between the two cable tray skids 3, the exhaust ducts 5 extending along the top of the cable tray skids 3 and sealing the top opening of the heat collection chamber 4; and a return air duct 7. The exhaust pipe 5 is fixed above the return air pipe 7. The top of the exhaust pipe 5 is connected to the return air pipe 7. The heat exchange device 8 is connected to both ends of the return air pipe 7. The outlet of the return air pipe 7 is connected to the hot air inlet of the heat exchange device 8, and the cold air outlet of the heat exchange device 8 is connected to the air inlet of the air wall module 1. With the space between the two bridge skids 3 as the inner side, the air wall module 1, IT skid 2, heat collection chamber 4, exhaust pipe 5, return air pipe 7 and heat exchange device 8 form a cooling circulation path. Cooling air is sent from the air wall module 1 to the outside of IT skid 2. After flowing through IT skid 2, it becomes hot air. The hot air enters the return air pipe 7 through the heat collection chamber 4 and exhaust pipe 5. After being cooled by heat exchange device 8, it flows back to the air wall module 1.

[0025] In the above technical solution, by placing two air wall modules 1 on both sides of the channel module, arranging the IT skid 2 and the cable tray skid 3 vertically, and sealing the top opening of the heat collection cavity 4 with the exhaust duct 5, cold air is sent in from both sides of the IT skid 2. After exchanging heat with the cabinet inside the IT skid 2, the hot air rises from the heat collection cavity 4 through the exhaust duct 5 to the return air duct 7 in a directional cooling circulation path. This reduces the risk of mixing of cold and hot air and airflow short circuit, improves cooling efficiency and airflow uniformity, and reduces the PUE value of the data center.

[0026] Meanwhile, components such as the air wall module 1, channel module, and exhaust pipe 5 can be prefabricated in the factory and quickly assembled on site, which greatly shortens the construction cycle. The stacked layout of the IT skid 2 and the cable tray skid 3 and the openable design of the sealing door 6 not only make full use of the vertical space and make the overall structure more compact, but also facilitate personnel to enter the heat collection chamber 4 for maintenance and repair. Furthermore, by flexibly setting one or more rows of channel structures between the two air wall modules 1, the cooling capacity can be expanded as needed.

[0027] like Figure 1 and Figure 2 and Figure 3The cable tray skid 3 houses a busbar trunking, and a top plate 9 is fixed to the upper part of the skid 3. Openable and closable inspection doors are arranged at intervals on the outer side of the skid 3. The skid 3, top plate 9, and inspection doors together form a protective cavity for the busbar trunking. The combination of the skid 3, top plate 9, and inspection doors reduces the impact of external dust, foreign objects, and top leakage on the busbar trunking. Simultaneously, the openable and closable inspection doors allow for direct maintenance and repair of the busbar trunking from the outside of the skid.

[0028] In use, the heat exchange device 8 delivers cooled air to the air inlet of the air wall module 1. The air wall module 1 sends the cold air into the outside of the IT skid 2. The cold air blows inward from the outside of the IT skid 2, flows through the cabinet inside the IT skid 2, and after heat exchange with the cabinet, it absorbs heat and becomes hot air. The hot air enters the heat collection chamber 4 between the two IT skids 2. The hot air enters the exhaust duct 5 through the top opening of the heat collection chamber 4, rises along the exhaust duct 5, and enters the return air duct 7 through the top of the exhaust duct 5. The hot air is split into two heat exchange devices 8 at both ends through the return air duct 7. After heat exchange and cooling, it becomes cold air. The cold air flows back to the air wall module 1 and is sent into the outside of the IT skid 2 again, forming a complete cooling circulation path. Example 1

[0029] like Figure 4 and Figure 5 and Figure 6 This is the first embodiment of the present invention: A first reflector 10 is installed on the inner side of the busbar trunking. The first reflector 10 is inclined upward from the outside to the inside, and the mirror surface of the first reflector 10 faces the inner wall of the busbar trunking. A second reflector 11 is installed on the upper part of the maintenance door structure. When the maintenance door structure is open, the second reflector 11 is inclined downward from the outside to the inside, and the second reflector 11 is located directly above the first reflector 10. The mirror surface of the second reflector 11 faces the busbar trunking, forming a reflected light path for observation between the first reflector 10 and the second reflector 11. The first reflector 10 reflects the scene of the side wall of the busbar trunking upward, and the second reflector 11 receives the reflected light for maintenance personnel to observe. When the maintenance door structure is closed, the second reflector 11 is horizontally positioned, and the mirror surface of the second reflector 11 faces downward.

[0030] When the maintenance door is opened, the second reflector 11 automatically flips to tilt downwards and forms a reflected light path with the first reflector 10. This allows technicians standing outside the skid to observe the true state of the blind spot inside the busbar trunking through two-stage reflections, eliminating the need to put their bodies into the maintenance opening or use additional tools. This not only eliminates the safety hazards caused by the blind spot but also significantly improves maintenance efficiency. When the maintenance door is closed, the second reflector 11 automatically resets to a horizontal position with the mirror facing downwards, which does not affect the normal closing and sealing function of the maintenance door and also prevents dust from accumulating on the mirror.

[0031] like Figure 7 and Figure 8 Each inspection door structure has a main inverted L-shaped slide rail 12 fixed on the bridge rack 3 on both the front and rear sides; an inspection door structure includes an upper inspection plate 13 and a lower inspection plate 14, the lower end of the upper inspection plate 13 is hinged to the upper end of the lower inspection plate 14; an upper roller 15 is rotatably connected to the front and rear sides of the upper end of the upper inspection plate 13, and a lower roller is rotatably connected to the front and rear sides of the lower end of the lower inspection plate 14; the upper roller 15 and the lower roller both extend into the main inverted L-shaped slide rail 12 on the corresponding side and roll in cooperation with the main inverted L-shaped slide rail 12.

[0032] By setting an inspection door structure on the outside of the cable tray skid 3, which is hinged to the upper inspection plate 13 and the lower inspection plate 14, and cooperating with the main inverted L-shaped slide rail 12 to achieve overall sliding, the inspection door can be opened by simply sliding along the slide rail during maintenance, without occupying additional external space of the skid. It is particularly suitable for prefabricated data center scenarios with compact skid arrangement and limited top space.

[0033] Meanwhile, the upper roller 15 of the upper inspection plate 13 and the lower roller of the lower inspection plate 14 respectively roll in cooperation with the main inverted L-shaped slide rail 12 to form a double-point guide, so that the inspection door moves smoothly during opening and closing, is not prone to jamming or deviation, and has high reliability in long-term use.

[0034] like Figure 7 and Figure 8 The upper inspection plate 13 is provided with two secondary inverted L-shaped slide rails 16, which are fixed to the front and rear sides of the inner wall of the upper inspection plate 13 respectively. The second reflector 11 is disposed between the two secondary inverted L-shaped slide rails 16. An upper slider is fixed to the front and rear sides of the upper end of the second reflector 11, and a lower slider is fixed to the front and rear sides of the lower end of the second reflector 11. Both the upper and lower sliders extend into the corresponding secondary inverted L-shaped slide rails 16 and are slidably connected to the secondary inverted L-shaped slide rails 16. One end of the inverted L-shaped slide rail is connected to the upper slider through a spring 17. A push rod 18 that cooperates with the lower slider is fixed on the bridge rack 3.

[0035] By setting an inverted L-shaped slide rail 16 on the upper inspection plate 13, and connecting the upper slider of the second reflector 11 to the end of the slide rail via a spring 17, and the lower slider to abut against the top rod 18 fixed on the bridge rack 3, the automatic lifting and flipping linkage of the second reflector 11 with the opening and closing of the inspection door is realized. When the door is closed, the top rod 18 pushes the lower slider to compress the spring 17, and the second reflector 11 is arranged horizontally and located below the top plate 9. When the door is opened, the upper inspection plate 13 is moved out, the lower slider is disengaged from the top rod 18, the spring 17 automatically rebounds, and drives the second reflector 11 to slide and flip to an inclined state and accurately position itself above the first reflector 10 to form an observation light path. The reflector can be automatically unfolded and positioned when the door is opened without the need for additional operation by maintenance personnel, and automatically retracted and locked when the door is closed, which simplifies the operation process and avoids human error.

[0036] During the process of switching the maintenance door structure from the closed state to the open state, the upper maintenance plate 13 moves along the main inverted L-shaped slide rail 12 with the upper roller 15. After the lower slider disengages from the top rod 18, the spring 17 rebounds and drives the upper slider to slide along the secondary inverted L-shaped slide rail 16. The sliding of the upper slider drives the sliding of the second reflector 11. The second reflector 11 flips to an inclined state, switching from a horizontal arrangement to an inclined arrangement. The main inverted L-shaped slide rail 12 and the secondary inverted L-shaped slide rail 16 each include a horizontal section and a vertical section. The horizontal section and the vertical section are smoothly connected by an arc transition section, which facilitates the smooth sliding of the upper roller 15, the lower roller, the upper slider and the lower slider from the horizontal section into the vertical section or from the vertical section into the horizontal section, avoiding the jamming, impact and noise that may be caused by right angle transition.

[0037] When the inspection door structure is fully open and the upper inspection plate 13 is horizontally positioned, the second reflector 11 is located above the first reflector 10 and forms a reflected light path for observation with the first reflector 10.

[0038] A rack 19 is slidably connected to the side of the secondary inverted L-shaped slide rail 16 away from the second reflector 11. The rack 19 is fixedly connected to the upper slider. A gear 20 is provided on the side of the rack 19 and meshes with the rack 19. The gear 20 is rotatably connected to the side of the secondary inverted L-shaped slide rail 16 away from the second reflector 11. A damping pad is fixed on the gear 20.

[0039] When the second reflector 11 unfolds with the spring 17, the rack 19 slides synchronously and drives the gear 20 to rotate. The damping pad provides reverse damping force to the rack 19 through the gear 20, which effectively slows down the unfolding speed of the second reflector 11, avoids the impact and vibration caused by the instantaneous release of the spring 17, and prevents shaking, noise or even mirror angle deviation caused by rapid mirror flipping. This makes the unfolding process of the second reflector 11 smooth and precise. At the same time, when the maintenance door is closed and the spring 17 is compressed, the damping pad also provides buffering, avoiding the impact of the slider returning quickly to the end of the slide rail, extending the service life of the slide rail and slider, and improving the operational stability and reliability of the entire linkage mechanism.

[0040] A miniature hydraulic buffer is installed at the end of the inverted L-shaped slide rail 16. When the spring 17 rebounds and drives the upper slider to move, the lower slider contacts the miniature hydraulic buffer, achieving a soft landing at the end.

[0041] The inspection door is made of transparent polycarbonate sheet. This allows maintenance personnel to directly observe the status of the busbar trunking and the first reflector 10 inside the protective cavity without opening the door, facilitating daily inspections and status confirmation.

[0042] During routine inspections, maintenance personnel stand outside the IT skid 2 and can directly observe the horizontal second reflector 11 through the inspection door. The second reflector 11 reflects the upper surface of the busbar trunking, and maintenance personnel can observe the external condition of the busbar trunking, such as discoloration and dust, through the second reflector 11. During maintenance, after power is cut off, maintenance personnel gently push the lower maintenance plate 14. The upper roller 15 and the lower roller roll along the main inverted L-shaped slide rail 12. The upper roller 15 of the upper maintenance plate 13 slides along the upper section of the main inverted L-shaped slide rail 12, and the lower roller of the lower maintenance plate 14 slides along the lower section of the main inverted L-shaped slide rail 12, so that the maintenance door structure slides to the open position. The upper section of the main inverted L-shaped slide rail 12 is provided with a stop block. When the upper roller 15 moves to the point of contacting the stop block, it stops. During the process of switching the inspection door structure from closed to open, the upper inspection plate 13 moves outward along the main inverted L-shaped slide rail 12 with the upper roller 15. The lower slider, which is in contact with the top rod 18, gradually disengages from the top rod 18. After the lower slider is completely disengaged from the top rod 18, the spring 17 automatically rebounds, driving the upper slider to slide along the secondary inverted L-shaped slide rail 16, so that the second reflector 11 is switched from a horizontal arrangement to an inclined arrangement. When the inspection door is fully open and the inspection door structure is set horizontally, the second reflector 11 is accurately located above the first reflector 10, and a reflected light path for observation is formed between the second reflector 10 and the first reflector 10. As the second reflector 11 unfolds with the spring 17, the rack 19, which is fixedly connected to the upper slider, slides synchronously. The rack 19 drives the gear 20 meshing with it to rotate. The damping pad fixed on the gear 20 provides reverse damping force to the rack 19 through the gear 20, which slows down the unfolding speed of the second reflector 11 and avoids the impact and vibration caused by the instantaneous release of the spring 17. This makes the unfolding process smooth and precise. The gear 20 and the rack 19 are covered with a dustproof shell. Maintenance personnel stand on the outside of the skid and, through the two-stage reflected light path formed between the first reflector 10 and the second reflector 11, directly observe the true condition of the blind spot on the inner wall of the busbar trunking, such as loose bolts, damaged insulation, rust, and cable connections. Based on the observed condition, maintenance personnel can reach through the access port to perform operations such as bolt tightening, cable arrangement, or component replacement on the busbar trunking. After maintenance, the maintenance personnel pull the maintenance door structure, and the upper roller 15 and the lower roller roll in the opposite direction along the main inverted L-shaped slide rail 12. The upper maintenance plate 13 and the lower maintenance plate 14 gradually slide and reset. During the process of switching the maintenance door structure from open to closed, the upper maintenance plate 13 drives the second reflector 11 to move towards the top rod 18. The lower slide block contacts the top rod 18, and the top rod 18 pushes the lower slide block, causing the spring 17 to be compressed again. The compression of the spring 17 drives the upper slide block to slide in the opposite direction, which drives the second reflector 11 to switch from an inclined arrangement to a horizontal arrangement. When the maintenance door is completely closed, the second reflector 11 is horizontally stored in the protective cavity with the mirror surface facing down. Example 2

[0043] A lamp is fixed below the busbar trunking, with the lamp angled and its light output directed toward the second reflector 11, which is positioned laterally. When the access door is closed, the light emitted from the lamp is reflected by the second reflector 11 and illuminates the ground, providing auxiliary lighting for the lower part of the IT skid 2. Compared to direct overhead lighting, this significantly reduces the obstruction of light by maintenance personnel and tools, creating a clear, bright, and shadow-free inspection view between narrow passage modules.

[0044] The lamp features a dual-mode power supply design, allowing it to be powered by an external power source or by a built-in rechargeable battery. When the data center experiences a power outage, local lighting failure, or the power outlet in the maintenance area becomes unavailable, the lamp can automatically or manually switch to battery power mode, where the rechargeable battery provides the lamp with operating power, ensuring that maintenance personnel can still obtain reliable auxiliary lighting in the event of a power outage or emergency.

[0045] In situations of insufficient ambient light, power outage, or emergency lighting, the light tubes are turned on, and the light emitted is reflected by the tilted second reflector 11 and then shines onto the ground, forming auxiliary lighting for the maintenance area. If higher brightness lighting is required, external light sources can be used directly through the transparent maintenance door to supplement it.

[0046] The access door is made of transparent polycarbonate sheet. The light emitted from the lamp can be directly transmitted to the external environment through the transparent access door without obstructing the reflection path. Example 3

[0047] A fan is installed at each of the front and rear ends of the protective cavity, with the two fans blowing in the same direction. Under the combined action of the two fans, a heat dissipation airflow is formed inside the protective cavity and flows outward from the cavity. This allows the heat generated by the busbar trunking during operation to be carried away by the airflow in a timely manner, reducing the ambient temperature inside the protective cavity and the temperature rise of the busbar trunking. At the same time, the heat dissipation airflow also has a purging effect, reducing the deposition of dust on the outer shell of the busbar trunking and the surface of the first reflector 10.

[0048] When the maintenance door structure is closed, the fans are turned on. The two fans at the front and rear ends of the protective cavity operate in the same direction, forming a directional cooling airflow inside the protective cavity; continuously expelling the heat generated by the busbar trunking from the outside of the protective cavity. Example 4

[0049] An inner side plate is fixed to the inside of the cable tray skid 3. The top of the inner side plate is fixedly connected to the top plate 9. The inner side plate and the exhaust pipe 5 have a gap of not less than 3cm. The inner side plate is made of heat insulation material.

[0050] By installing an inner side plate inside the cable tray skid 3 and fixing its top end to the top plate 9, the protective cavity forms a completely enclosed space, effectively improving the integrity and sealing of the protective cavity. At the same time, a gap of not less than 3cm is maintained between the inner side plate and the exhaust pipe 5, which not only avoids structural interference but also provides deformation margin for the inner side plate to expand due to heat. In addition, the inner side plate is made of heat insulation material, which can effectively block the heat of the hot air in the exhaust pipe 5 from being transferred to the inside of the protective cavity, preventing the busbar trunking from experiencing a decrease in current carrying capacity and accelerated aging of insulation materials due to long-term heat radiation, thus extending the service life of the busbar trunking. Furthermore, the fixed connection method between the inner side plate and the top plate 9 is simple in structure, convenient to install, and has good reliability and practicality.

[0051] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A prefabricated data center airflow cooling system, characterized in that, include: At least two wind wall modules arranged opposite each other (1); At least one channel module is located between two wind wall modules (1), and one channel module includes two side-by-side skid structures; In one of the channel modules, each skid structure includes an IT skid (2) and a cable tray skid (3) fixed above the IT skid (2). The front and rear sides of the two IT skids (2) are connected by openable and closable sealing doors (6) to form a heat collection cavity (4) between the two IT skids (2). A row of air ducts (5) is fixed between the two cable tray skids (3). The air ducts (5) extend along the top of the cable tray skids (3) and close the top opening of the heat collection chamber (4). The return air duct (7) is fixed above the exhaust duct (5), and the top end of the exhaust duct (5) is connected to the return air duct (7); A heat exchange device (8) is connected to both ends of the return air duct (7), and the cold air outlet of the heat exchange device (8) is connected to the air inlet of the air wall module (1). The air wall module (1), IT skid (2), heat collection chamber (4), exhaust pipe (5), return air pipe (7) and heat exchange device (8) work together to form a cooling circulation path.

2. The prefabricated data center air wall cooling system as described in claim 1, characterized in that, The cable tray pry bar (3) has a busbar trough fixed inside, and a top plate (9) is fixed on the upper part of the cable tray pry bar (3). The outer side of the cable tray pry bar (3) has an openable and closable maintenance door structure arranged at intervals. The cable tray pry bar (3), the top plate (9), and the maintenance door structure together form a protective cavity to protect the busbar trunking.

3. The prefabricated data center air wall cooling system as described in claim 2, characterized in that, A first reflector (10) is provided on the inner side of the busbar trunking. The first reflector (10) is inclined upward from the outside to the inside, and the mirror surface of the first reflector (10) faces the inner wall of the busbar trunking. The upper part of the inspection door structure is provided with a second reflector (11). When the inspection door structure is open, the second reflector (11) is inclined downward from the outside to the inside, and the second reflector (11) is located directly above the first reflector (10). The mirror surface of the second reflector (11) faces the busbar groove, and a reflected light path for observation is formed between the first reflector (10) and the second reflector (11). When the inspection door structure is in the closed state, the second reflector (11) is arranged horizontally, and the mirror surface of the second reflector (11) faces downward.

4. The prefabricated data center air wall cooling system as described in claim 3, characterized in that, Each of the aforementioned inspection door structures has a main inverted L-shaped slide rail (12) fixed on the bridge rack pry block (3) on both the front and rear sides. One of the maintenance door structures includes an upper maintenance plate (13) and a lower maintenance plate (14), the lower end of the upper maintenance plate (13) being hinged to the upper end of the lower maintenance plate (14); An upper roller (15) is rotatably connected to the front and rear sides of the upper end of the upper inspection plate (13), and a lower roller is rotatably connected to the front and rear sides of the lower end of the lower inspection plate (14). The upper roller (15) and the lower roller both extend into the corresponding side of the main inverted L-shaped slide rail (12) and roll in cooperation with the main inverted L-shaped slide rail (12).

5. The prefabricated data center air wall cooling system as described in claim 4, characterized in that, The upper inspection plate (13) is provided with two secondary inverted L-shaped slide rails (16), which are respectively fixed on the front and rear sides of the inner wall of the upper inspection plate (13), and the second reflector (11) is disposed between the two secondary inverted L-shaped slide rails (16). An upper slider is fixed on the front and rear sides of the upper end of the second reflector (11), and a lower slider is fixed on the front and rear sides of the lower end of the second reflector (11). The upper slider and the lower slider both extend into the corresponding side of the sub-inverted L-shaped slide rail (16) and slide in connection with the sub-inverted L-shaped slide rail (16). One end of the inverted L-shaped slide rail is connected to the upper slider by a spring (17); A top rod (18) that cooperates with the lower slider is fixed on the bridge pry bar (3).

6. The prefabricated data center air wall cooling system as described in claim 5, characterized in that, A lamp tube is fixed below the busbar trunking. The lamp tube is arranged at an angle and the light emission direction of the lamp tube is towards the second reflector (11) which is arranged laterally.

7. The prefabricated data center air wall cooling system as described in claim 6, characterized in that, The side of the secondary inverted L-shaped slide rail (16) facing away from the second reflector (11) is connected to a rack (19) via a slide rail, and the rack (19) is fixedly connected to the upper slider. A gear (20) meshing with the rack (19) is provided on the side of the rack (19). The gear (20) is rotatably connected to the side of the secondary inverted L-shaped slide rail (16) away from the second reflector (11). A damping pad is fixed on the gear (20).

8. A prefabricated data center air wall cooling system as described in claim 2, characterized in that, A fan is installed at each of the front and rear ends of the protective cavity, and the two fans have the same airflow direction.

9. A prefabricated data center air wall cooling system as described in claim 2, characterized in that, The inner side plate is fixed to the inner side of the bridge rack pry block (3), the top of the inner side plate is fixedly connected to the top plate (9), and the inner side plate has a gap of not less than 3cm with the exhaust pipe (5). The inner side panel is made of heat-insulating material.

10. A prefabricated data center air wall cooling system as described in claim 7, characterized in that, The inspection door structure is made of transparent polycarbonate sheet.

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