Cooling equipment for box-type substation and box-type substation

Abstract

The invention relates to the field of transformer substation cooling, and discloses a cooling device for a box-type transformer substation and the box-type transformer substation, the cooling device comprises a box-type transformer substation body and photovoltaic panels, the outer wall of the box-type transformer substation body is provided with a plurality of groups of photovoltaic panels, and the side wall of the box-type transformer substation body is provided with a door plate; a switching cylinder is installed on the side, away from the door plate, of the side wall of the box-type substation body, a filter cylinder is installed at one end of the switching cylinder, and an annular cylinder frame is installed in the position, on one side of the switching cylinder, of the box-type substation body. According to the invention, efficient filtered air supply cooling of the cooling equipment and the box-type substation is realized, the air outlet can be conveniently adjusted to disperse airflow, uniform air supply cooling in the cooling equipment and the box-type substation is facilitated, efficient cooling of a high-heating area in a movable manner is facilitated, and the cooling efficiency of the box-type substation is improved. The cooling efficiency of the cooling equipment and the box-type substation and the convenience of filtering, dismounting and replacing are improved.

Description

Technical Field

[0001] The present invention relates to the field of transformer substations, in particular to the field of transformer substation cooling, and in particular to a cooling device for a box-type transformer substation and a box-type transformer substation. Background Art

[0002] The cooling fan of the box-type transformer is an important part of the box-type transformer. Its function is to dissipate the heat inside the box-type transformer through the fan to ensure the stable operation and extend the service life of the box-type transformer. The working principle of the cooling fan: The cooling fan of the box-type transformer discharges heat from the surface of the box through forced air, thereby ensuring that the temperature inside the transformer is controlled and ensuring the normal operation of the transformer under high temperature. The number of cooling fans is determined according to relevant parameters such as the rated capacity of the transformer and the surface area that needs to be cooled. The larger the capacity of the transformer, the more cooling fans will be needed.

[0003] For example, a cooling device for a box-type substation disclosed in the authorization announcement number CN218770893U aims at the problem that after the dust filter is used for a long time, the wind force of the fan will adsorb dust on the dust filter and accumulate, thereby causing the dust filter to be blocked. Therefore, there is still a problem that the normal operation of the fan will be affected, and the cooling of the box-type substation will also be affected. Now, the following scheme is proposed, which includes a box-type substation body, a mounting hole is opened on the bottom inner wall of the box-type substation body, a dust filter is installed inside the mounting hole, and the bottom sliding connection of the box-type substation body has two sliding Although it realizes the rapid cleaning operation of dust on the dust filter, it prevents the wind force of the fan inside the box-type substation body from adsorbing dust on the dust filter and causing clogging of the dust filter, ensuring the normal cooling of the box-type substation body, and is highly practical, it does not solve the problem that the existing cooling equipment and box-type substations of this type are generally not conducive to efficient filtering gas air supply cooling during use, it is not convenient to adjust the air outlet to disperse the airflow and the internal uniform air supply cooling, and it is not convenient for mobile and efficient cooling of high-heat areas, which affects the cooling efficiency of the cooling equipment and the box-type substation and the convenience of filter disassembly and replacement.

[0004] Based on the above, the present invention proposes a cooling device for a box-type substation and a box-type substation. Summary of the invention

[0005] In order to solve the problems mentioned in the above background, the present invention provides a cooling device for a box-type substation and a box-type substation.

[0006] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows.

[0007] A cooling device for a box-type substation comprises a box-type substation body and a photovoltaic panel, wherein a plurality of photovoltaic panels are installed on the outer wall of the box-type substation body, a door panel is installed on the side wall of the box-type substation body, a transfer cylinder is installed on the side of the side wall of the box-type substation body away from the door panel, a filter cylinder is installed on one end of the transfer cylinder, an annular cylinder rack is installed inside the box-type substation body on one side of the transfer cylinder, and the annular cylinder rack is movably connected to the transfer cylinder, an air outlet is slidably installed inside the annular cylinder rack, and one end of the air outlet extends to the outside of the annular cylinder rack, a transfer tube is installed on one end of the air outlet, and a corrugated tube is installed on the end of the transfer tube away from the air outlet Tube, a connecting pipe is installed at the end of the corrugated tube away from the adapter tube, and the connecting pipe extends to the interior of the adapter tube, an exhaust fan is installed inside the adapter tube, a filter body is installed inside the filter tube on one side of the exhaust fan, a wind shield is installed at the end of the air outlet away from the adapter tube, a second hinge shaft is provided on the side of the wind shield close to the air outlet, and the wind shield is movably connected to the air outlet through the second hinge shaft, an air outlet is installed at the end of the wind shield away from the air outlet, a first electric push rod is symmetrically installed on the outer wall of the air outlet on one side of the wind shield, a connecting shaft is installed at the output end of the first electric push rod, and the first electric push rod is movably connected to the wind shield through the connecting shaft.

[0008] As a further improvement and optimization of the present invention, two sets of positioning plates are symmetrically installed inside the box-type substation body on one side of the annular drum frame, and a positioning frame is installed at one end of each positioning plate, and the positioning frames are connected to the box-type substation body.

[0009] As a further improvement and optimization of the present invention, a retaining frame is symmetrically installed on one end of the positioning plate away from the box-type substation body, a right-angle motor is installed on the side of the retaining frame away from the positioning plate, a power wheel is installed at the output end of the right-angle motor, and an auxiliary wheel is installed at the bottom end of the retaining frame on one side of the power wheel.

[0010] As a further improvement and optimization of the present invention, a connecting ring is mounted on the outer wall of the air outlet, a servo motor is installed at the bottom end of the connecting ring, a gear is installed at the output end of the servo motor, a rack is installed on the inner wall of the annular tube frame below the gear, and the rack and the gear are meshed with each other.

[0011] As a further improvement and optimization of the present invention, a pressure arm is arranged on the outer wall of the filter cartridge, an auxiliary shaft is arranged on the side of the pressure arm close to the filter cartridge, and the pressure arm is movably connected to the filter cartridge via the auxiliary shaft.

[0012] As a further improvement and optimization of the present invention, a bracket is installed on the side of the outer wall of the filter cartridge away from the auxiliary shaft, and a T-bolt is movably installed inside the bracket, and the T-bolt extends to the outside of the pressure arm.

[0013] As a further improvement and optimization of the present invention, a nut sleeve is mounted on the surface of the T-bolt, a threaded rod is threadedly connected at the center position of the pressure arm, and the threaded rod is movably connected to the mesh pressure cover, and a handwheel is installed at the end of the threaded rod away from the mesh pressure cover.

[0014] As a further improvement and optimization of the present invention, a controller is installed inside the box-type substation body, and the output end of the controller is electrically connected to the input ends of the right-angle motor, the first electric push rod, and the exhaust fan.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This solution not only realizes efficient filtered gas air supply cooling of cooling equipment and box-type substation, but also facilitates the adjustment of the air outlet to disperse the air flow, facilitates uniform air supply cooling inside the cooling equipment and box-type substation, facilitates efficient mobile cooling of high-heat areas, and improves the cooling efficiency of cooling equipment and box-type substation and the convenience of filter disassembly and replacement:

[0017] (1) The external gas enters the interior of the filter cylinder through the mesh gland, is filtered by the filter body, and is discharged from the air outlet, so as to facilitate air supply cooling inside the box-type substation body. The first electric push rod drives the wind shield to rotate with the second hinge axis as the axis through the connecting shaft, and the wind shield drives the air outlet cover to rotate, so as to facilitate the adjustment of the air outlet direction of the air outlet, so as to facilitate the dispersion of the air flow, thereby realizing efficient filtered gas air supply cooling for the cooling equipment and the box-type substation, and facilitating the adjustment of the air outlet to disperse the air flow;

[0018] (2) The right-angle motor drives the power wheel to rotate, and the auxiliary wheel cooperates to drive the annular drum frame to rotate. The annular drum frame drives the air outlet nozzle, the adapter tube, the bellows, and the connecting tube to rotate in a circular manner. The adapter tube provides active support to prevent interference between the annular drum frame and the connecting tube during rotation, thereby realizing circular rotation air supply cooling for the cooling equipment and the box-type substation, and facilitating uniform air supply cooling inside the cooling equipment and the box-type substation;

[0019] (3) The servo motor drives the gear to rotate, and the gear is driven to move under the meshing of the gear and the rack to drive the servo motor, the connecting ring, and the air outlet nozzle to move horizontally. The air outlet nozzle slides inside the ring-shaped cylinder frame. The bellows has a retractable characteristic to prevent interference when the air outlet nozzle moves, thereby realizing horizontal mobile air supply cooling for the cooling equipment and the box-type substation, facilitating efficient mobile cooling of high-heat areas, and improving the cooling efficiency of the cooling equipment and the box-type substation;

[0020] (4) When the filter body needs to be replaced after long-term filtration, the nut sleeve is rotated, and the pressure arm is changed from a tightening state to a loosening state under the cooperation of the nut sleeve and the T-bolt. The handwheel drives the threaded rod to rotate. Under the threaded connection between the threaded rod and the pressure arm, the threaded rod drives the mesh pressure cover to move, and the mesh pressure cover is separated from the filter cartridge to facilitate the rotation of the pressure arm with the auxiliary shaft as the axis, so as to facilitate the opening of the filter cartridge and the replacement of the filter body, thereby realizing the convenient disassembly and replacement of the filter in the cooling equipment and the box-type substation, and improving the convenience of filtering disassembly and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the door panel of the present invention;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the ring-shaped cartridge rack of the present invention;

[0024] Figure 4 It is a front cross-sectional structural schematic diagram of the present invention;

[0025] Figure 5 It is a side cross-sectional structural schematic diagram of the present invention;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the air outlet nozzle of the present invention;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the retainer of the present invention;

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the rack of the present invention.

[0029] The reference numerals in the accompanying drawings are:

[0030] 1. Box-type substation body; 2. Photovoltaic panel; 3. Door panel; 4. Ring-shaped cylinder rack; 5. Adapter cylinder; 6. Filter cylinder; 7. Filter body; 8. Mesh gland; 9. Connecting pipe; 10. Bellows; 11. Adapter pipe; 12. Air outlet; 13. First electric push rod; 14. Connecting shaft; 15. Second hinge shaft; 16. Wind shield; 17. Air outlet; 18. Rack; 19. Gear; 20. Servo motor; 21. Connecting ring; 22. Positioning frame; 23. Positioning plate; 24. Retaining frame; 25. Right-angle motor; 26. Power wheel; 27. Auxiliary wheel; 28. Auxiliary shaft; 29. ​​Press arm; 30. Threaded rod; 31. Handwheel; 32. Nut sleeve; 33. T-bolt; 34. Bracket; 35. Exhaust fan; 36. Controller. DETAILED DESCRIPTION

[0031] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0032] Reference Figure 1-Figure 8 , a box-type substation, including a box-type substation body 1.

[0033] A cooling device for a box-type substation, comprising a plurality of photovoltaic panels 2 arranged on the outer wall of a box-type substation body 1, a door panel 3 is installed on the side wall of the box-type substation body 1, a transfer tube 5 is installed on the side of the side wall of the box-type substation body 1 away from the door panel 3, a filter tube 6 is installed at one end of the transfer tube 5, an annular tube frame 4 is installed inside the box-type substation body 1 on one side of the transfer tube 5, and the annular tube frame 4 is movably connected to the transfer tube 5, an air outlet 12 is slidably installed inside the annular tube frame 4, and one end of the air outlet 12 extends to the outside of the annular tube frame 4, a transfer tube 11 is installed at one end of the air outlet 12, and the transfer tube 11 is away from the outlet. A bellows 10 is installed at one end of the air nozzle 12, and a connecting pipe 9 is installed at the end of the bellows 10 away from the adapter tube 11, and the connecting pipe 9 extends to the inside of the adapter tube 5, and an exhaust fan 35 is installed inside the adapter tube 5. The exhaust fan 35 plays a role in accelerating the flow of gas and supplying air. A filter body 7 is installed inside the filter tube 6 on one side of the exhaust fan 35, and a wind shield 16 is installed at the end of the air outlet nozzle 12 away from the adapter tube 11. A second hinge shaft 15 is provided on the side of the wind shield 16 close to the air outlet nozzle 12, and the wind shield 16 is movably connected to the air outlet nozzle 12 through the second hinge shaft 15, and the second hinge shaft 15 plays a role of movable support.

[0034] An air outlet hood 17 is installed at one end of the wind shield 16 away from the air outlet nozzle 12, and a first electric push rod 13 is symmetrically installed on the outer wall of the air outlet nozzle 12 on one side of the wind shield 16. The first electric push rod 13 plays a role of power drive, and a connecting shaft 14 is installed at the output end of the first electric push rod 13, and the first electric push rod 13 is movably connected to the wind shield 16 through the connecting shaft 14.

[0035] The photovoltaic panel 2 receives light to conveniently supply power to the box-type substation body 1, and the door panel 3 facilitates access to the interior of the box-type substation body 1. When the box-type substation body 1 generates high temperature, the controller 36 turns on the exhaust fan 35, and the external gas enters the interior of the filter cylinder 6 through the mesh gland 8, and is filtered by the filter body 7. The gas is transported to the interior of the connecting pipe 9, the corrugated pipe 10, the adapter pipe 11, and the air outlet 12 through the adapter tube 5, and is discharged from the air outlet 12, so as to facilitate access to the interior of the box-type substation body 1. For air supply cooling, the gas inside the box-type substation body 1 is discharged through the air outlet of the box-type substation body 1 itself, and the operation controller 36 opens the first electric push rod 13. The first electric push rod 13 drives the wind shield 16 to rotate around the second hinge shaft 15 through the connecting shaft 14, and the wind shield 16 drives the air outlet cover 17 to rotate, so as to facilitate the adjustment of the air outlet direction of the air outlet nozzle 12, so as to facilitate the dispersion of the air flow, thereby realizing efficient filtering of gas air supply cooling for the cooling equipment and the box-type substation, and facilitating the adjustment of the air outlet to disperse the air flow.

[0036] Two sets of positioning plates 23 are symmetrically installed inside the box-type substation body 1 on one side of the ring-shaped drum frame 4 , and a positioning frame 22 is installed at one end of each positioning plate 23 , and each positioning frame 22 is connected to the box-type substation body 1 .

[0037] A retaining frame 24 is symmetrically installed at one end of the positioning plate 23 away from the box-type substation body 1, and a right-angle motor 25 is installed on the side of the retaining frame 24 away from the positioning plate 23. The right-angle motor 25 plays a role of power drive. A power wheel 26 is installed at the output end of the right-angle motor 25, and an auxiliary wheel 27 is installed at the bottom end of the retaining frame 24 on one side of the power wheel 26. The auxiliary wheel 27 and the power wheel 26 are both slidably connected to the annular drum frame 4.

[0038] By operating the controller 36 to turn on the right-angle motor 25, with the support of the positioning frame 22 on the positioning plate 23 and the support of the positioning plate 23 on the retaining frame 24, the right-angle motor 25 drives the power wheel 26 to rotate, and with the cooperation of the auxiliary wheel 27, it is convenient to drive the annular cylinder frame 4 to rotate, and the annular cylinder frame 4 drives the air outlet nozzle 12, the adapter tube 11, the bellows 10, and the connecting tube 9 to rotate in a circular manner. The adapter tube 5 is movably supported to prevent interference between the annular cylinder frame 4 and the connecting tube 9 when they rotate, thereby realizing circular rotation air supply cooling of the cooling equipment and the box-type substation, and facilitating uniform air supply cooling inside the cooling equipment and the box-type substation.

[0039] A connecting ring 21 is mounted on the outer wall of the air outlet nozzle 12, and a servo motor 20 is installed at the bottom end of the connecting ring 21. The servo motor 20 plays a role of power drive. A gear 19 is installed at the output end of the servo motor 20, and a rack 18 is installed on the inner wall of the annular cylinder frame 4 below the gear 19, and the rack 18 and the gear 19 are meshed with each other.

[0040] The servo motor 20 is turned on by operating the controller 36. The servo motor 20 drives the gear 19 to rotate. The gear 19 is driven to move under the meshing of the gear 19 and the rack 18 to drive the servo motor 20, the connecting ring 21, and the air outlet nozzle 12 to move laterally. The air outlet nozzle 12 slides inside the annular tube frame 4. The bellows 10 has a retractable feature to prevent interference when the air outlet nozzle 12 moves, thereby realizing horizontal mobile air supply cooling for the cooling equipment and the box-type substation, facilitating mobile and efficient cooling of high-heat areas, and improving the cooling efficiency of the cooling equipment and the box-type substation.

[0041] A pressure arm 29 is provided on the outer wall of the filter cartridge 6 , an auxiliary shaft 28 is provided on one side of the pressure arm 29 close to the filter cartridge 6 , and the pressure arm 29 is movably connected to the filter cartridge 6 via the auxiliary shaft 28 .

[0042] A bracket 34 is installed on the side of the outer wall of the filter cartridge 6 away from the auxiliary shaft 28, and a T-bolt 33 is movably installed inside the bracket 34, and the T-bolt 33 extends to the outside of the pressure arm 29, and a nut sleeve 32 is mounted on the surface of the T-bolt 33. A threaded rod 30 is threadedly connected at the center position of the pressure arm 29, and the threaded rod 30 is movably connected to the mesh pressure cover 8, and a hand wheel 31 is installed on the end of the threaded rod 30 away from the mesh pressure cover 8.

[0043] A controller 36 is installed inside the box-type substation body 1 , and an output end of the controller 36 is electrically connected to the right-angle motor 25 , the first electric push rod 13 , and the input end of the exhaust fan 35 .

[0044] When the filter body 7 needs to be replaced after long-term filtration, the nut sleeve 32 is rotated, and with the cooperation of the nut sleeve 32 and the T-bolt 33, the pressure arm 29 is changed from a tightening state to a loosening state, and the handwheel 31 drives the threaded rod 30 to rotate. Under the threaded connection between the threaded rod 30 and the pressure arm 29, the threaded rod 30 drives the mesh pressure cover 8 to move, and the mesh pressure cover 8 is separated from the filter cartridge 6, so as to facilitate the pressure arm 29 to rotate around the auxiliary shaft 28, so as to facilitate the filter cartridge 6 to open and replace the filter body 7, thereby realizing the convenient disassembly and replacement of the filter by the cooling equipment and the box-type substation, and improving the convenience of filtering disassembly and replacement.

[0045] Working principle of the present invention:

[0046] The external power supply first receives light through the photovoltaic panel 2 to facilitate the power supply to the box-type substation body 1, and the door panel 3 is used to facilitate entry into the interior of the box-type substation body 1. When high temperature is generated inside the box-type substation body 1, the controller 36 turns on the exhaust fan 35, and the external gas enters the interior of the filter cylinder 6 through the mesh gland 8, and is filtered by the filter body 7. The gas is transported to the interior of the connecting pipe 9, the bellows 10, the adapter tube 11, and the air outlet nozzle 12 through the adapter tube 5, and is discharged from the air outlet nozzle 12 to facilitate air supply and cooling of the interior of the box-type substation body 1. The first electric push rod 13 drives the wind shield 16 to rotate around the second hinge shaft 15 through the connecting shaft 14, and the wind shield 16 drives the air outlet hood 17 to rotate to facilitate adjustment of the air outlet direction of the air outlet nozzle 12 to facilitate the dispersion of the airflow. The right-angle motor 25 drives the power wheel 26 to rotate, and with the cooperation of the auxiliary wheel 27, it is convenient to drive the annular cylinder frame 4 to rotate, and the annular cylinder frame 4 drives the air outlet nozzle 12 and the adapter tube 11 to rotate. , bellows 10, and connecting tube 9 rotate in a circular manner, and adapter tube 5 is movably supported to prevent interference when annular tube frame 4 and connecting tube 9 rotate. Servo motor 20 drives gear 19 to rotate, and gear 19 is driven to move under the meshing of gear 19 and rack 18 to drive servo motor 20, connecting ring 21, and air outlet nozzle 12 to move horizontally. Air outlet nozzle 12 slides inside annular tube frame 4. Bellows 10 has a retractable characteristic to prevent interference when air outlet nozzle 12 moves. Involved, rotate the nut sleeve 32, with the cooperation of the nut sleeve 32 and the T-bolt 33, the pressure arm 29 is changed from a tightening state to a loosening state, the handwheel 31 drives the threaded rod 30 to rotate, and under the threaded connection between the threaded rod 30 and the pressure arm 29, the threaded rod 30 drives the mesh pressure cover 8 to move, and the mesh pressure cover 8 is separated from the filter cartridge 6, to facilitate the pressure arm 29 to rotate with the auxiliary shaft 28 as the axis, to facilitate the filter cartridge 6 to open and replace the filter body 7, and complete the use of the cooling equipment and the box-type substation.

[0047] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A cooling device for a box-type substation, characterized in that: The invention comprises a box-type substation body (1) and photovoltaic panels (2), wherein a plurality of photovoltaic panels (2) are installed on the outer wall of the box-type substation body (1), a door panel (3) is installed on the side wall of the box-type substation body (1), a switching cylinder (5) is installed on the side of the side wall of the box-type substation body (1) away from the door panel (3), a filter cylinder (6) is installed at one end of the switching cylinder (5), and a filter cylinder (6) is installed inside the box-type substation body (1) on one side of the switching cylinder (5). The annular cartridge rack (4) is movably connected to the adapter tube (5); an air outlet nozzle (12) is slidably mounted inside the annular cartridge rack (4); one end of the air outlet nozzle (12) extends to the outside of the annular cartridge rack (4); a adapter tube (11) is mounted on one end of the air outlet nozzle (12); a bellows (10) is mounted on one end of the adapter tube (11) away from the air outlet nozzle (12); and a bellows (10) is mounted on one end of the bellows (10) away from the adapter tube (11). A connecting tube (9) is installed, and the connecting tube (9) extends to the interior of the adapter tube (5); an exhaust fan (35) is installed inside the adapter tube (5); a filter body (7) is installed inside the filter tube (6) on one side of the exhaust fan (35); a wind shield (16) is installed at one end of the air outlet (12) away from the adapter tube (11); a second hinge shaft (15) is provided on the side of the wind shield (16) close to the air outlet (12); and the wind shield (16) is provided with a plurality of hinges. 6) is movably connected to the air outlet (12) via a second hinge shaft (15); an air outlet cover (17) is installed at one end of the wind shield (16) away from the air outlet (12); a first electric push rod (13) is symmetrically installed on the outer wall of the air outlet (12) on one side of the wind shield (16); a connecting shaft (14) is installed at the output end of the first electric push rod (13), and the first electric push rod (13) is movably connected to the wind shield (16) via the connecting shaft (14).

2. The cooling device for a box-type substation according to claim 1 is characterized in that: Two groups of positioning plates (23) are symmetrically installed inside the box-type substation body (1) on one side of the annular drum frame (4), and a positioning frame (22) is installed at one end of each positioning plate (23), and the positioning frame (22) is connected to the box-type substation body (1).

3. The cooling device for a box-type substation according to claim 2 is characterized in that: A retaining frame (24) is symmetrically mounted on one end of the positioning plate (23) away from the box-type substation body (1); a right-angle motor (25) is mounted on one side of the retaining frame (24) away from the positioning plate (23); a power wheel (26) is mounted on the output end of the right-angle motor (25); and an auxiliary wheel (27) is mounted on the bottom end of the retaining frame (24) on one side of the power wheel (26).

4. The cooling device for a box-type substation according to claim 1 is characterized in that: A connecting ring (21) is mounted on the outer wall of the air outlet nozzle (12); a servo motor (20) is mounted on the bottom end of the connecting ring (21); a gear (19) is mounted on the output end of the servo motor (20); a rack (18) is mounted on the inner wall of the annular cylinder frame (4) below the gear (19); and the rack (18) and the gear (19) are meshed with each other.

5. The cooling device for a box-type substation according to claim 1 is characterized in that: A pressure arm (29) is provided on the outer wall of the filter cartridge (6), an auxiliary shaft (28) is provided on the side of the pressure arm (29) close to the filter cartridge (6), and the pressure arm (29) is movably connected to the filter cartridge (6) via the auxiliary shaft (28).

6. The cooling device for a box-type substation according to claim 1 is characterized in that: A bracket (34) is installed on the side of the outer wall of the filter cartridge (6) away from the auxiliary shaft (28), and a T-bolt (33) is movably installed inside the bracket (34), and the T-bolt (33) extends to the outside of the pressure arm (29).

7. The cooling device for a box-type substation according to claim 6 is characterized in that: The surface of the T-bolt (33) is sleeved with a nut sleeve (32); a threaded rod (30) is threadedly connected at the center of the pressure arm (29); the threaded rod (30) is movably connected to the mesh pressure cover (8); and a hand wheel (31) is installed at one end of the threaded rod (30) away from the mesh pressure cover (8).

8. The cooling device for a box-type substation according to claim 1, characterized in that: A controller (36) is installed inside the box-type substation body (1), and the output end of the controller (36) is electrically connected to the right-angle motor (25), the first electric push rod (13), and the input end of the exhaust fan (35).

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