Ventilation equipment for power grid modularized machine room

Abstract

The invention relates to the technical field related to air purification, discloses ventilation equipment for a power grid modular machine room, and aims to solve the problem of unsmooth air circulation caused by accumulation of impurities on a filter plate, external air is sucked in through an air suction fan, in the process, the external air is filtered and purified by using a filter cartridge of a cylindrical structure, and meanwhile, the air purification effect is improved. The outer side of the filter cylinder is sleeved with the cleaning cylinder, the cleaning cylinder can do reciprocating motion in the axial direction of the filter cylinder, in the moving process, the air suction pipe of the exhaust fan is used for sucking the interior of the cleaning cylinder, the cleaning cylinder conducts reverse suction on filter holes in the outer side of the filter cylinder, and therefore the problem that the filter cylinder is blocked is avoided, and the real-time reverse suction impurity removal effect is finally achieved.

Description

Technical Field

[0001] The present invention relates to the technical field related to air purification, and in particular to ventilation equipment for a modular power grid machine room. Background Art

[0002] The ventilation equipment in modular power grid computer rooms falls under the category of heat exchange devices. Its core function is to achieve efficient exchange and circulation of air inside and outside the computer room. Taking the fresh air blower as an example, its operating principle includes the following key steps: First, the power system directs the accumulation of polluted air in the computer room to the outside environment; simultaneously, fresh air from outside is introduced into the computer room through a dedicated air intake duct. During the air transportation process, the incoming fresh air undergoes multiple stages of treatment: first, it passes through a primary filter to intercept large particulate matter, then passes through a medium and high efficiency filter module to remove fine particles such as PM2.5, and finally passes through an activated carbon adsorption layer to remove volatile organic compounds.

[0003] As the core component of the heat exchange system, the heat exchanger utilizes sensible or total heat exchange technology, achieving indirect heat exchange between exhaust and fresh air through a specially designed heat exchange core. In winter, the waste heat in the exhaust air preheats the incoming fresh air, reducing the heating energy consumption of the air conditioning system; in summer, the exhaust air's cooling capacity precools the fresh air, reducing the cooling load. This design ensures a stable temperature field within the computer room while avoiding energy waste caused by direct ventilation. Ultimately, temperature-controlled and clean fresh air is continuously delivered to the computer room, forming a closed-loop circulation with the exhaust system, maintaining positive indoor pressure while achieving a dynamic balance in air quality.

[0004] However, over time, the filter, especially the one exposed to the outside environment, will inevitably trap and accumulate a large amount of impurities, such as dust and mosquitoes. This accumulation of impurities not only affects the quality of the air entering the room, but can also block the pores of the filter, severely hindering the normal flow of air, and significantly reducing the efficiency of delivering outside air to the room. Summary of the Invention

[0005] The present invention proposes a ventilation device for a modular power grid room, which has the advantage of real-time back-absorption and impurity removal, and is used to solve the problem of impurities accumulating on the filter plate and causing poor air circulation mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a ventilation device for a modular computer room of a power grid, characterized in that it comprises: a chassis, an intake fan is arranged inside, the input end of the intake fan is fixed with a filter cartridge through an air suction seat, so that the intake fan draws in external air, and after the air is filtered by the filter cartridge, the air flow passes through the heat exchanger and the activated carbon plate in sequence, and is finally discharged to the computer room from the exhaust port; the turbid air in the room is based on the air inlet and the heat exchanger, and when the filtered air passes through the heat exchanger, the indoor and outdoor air exchange heat, thereby achieving energy saving; finally, after the air passes through the exhaust fan, it is discharged out from the exhaust pipe Discharge; a cleaning cylinder is sleeved on the outside of the filter cartridge, and the inner cavity and the suction pipe are connected by a circular pipe. When the suction pipe is sucking, the outside of the filter cartridge can be back-drawn and unblocked according to the cleaning cylinder; a reduction gear box is coaxially fastened with the suction fan, and the reduction gear box drives the pulley to rotate, and a driving rod is fixed on the belt connected to the outside of the pulley; a driving frame is fastened to the side of the cleaning cylinder, and a driving groove is opened on the driving frame. The driving rod is inserted into the driving groove, so that when the belt drives the driving rod to rotate in a circular manner, the driving rod drives the cleaning cylinder to reciprocate along the axial direction of the filter cartridge, and the cleaning cylinder is used to back-draw and unblock all the blockages on the outside of the filter cartridge.

[0007] Furthermore, a driving end face gear is fixedly installed at the top output end of the reduction gearbox, and a driven end face gear meshing with the driving end face gear is fastened to the bottom of the pulley, and a connecting frame is used for guiding and positioning between the two pulleys.

[0008] Furthermore, a dust cleaning seat is symmetrically arranged on the inner side of the cleaning cylinder and is sleeved on the outer side of the filter cylinder, and a return spring is provided between the two dust cleaning seats.

[0009] Furthermore, limit seats are fixedly installed at both ends of the filter cartridge, and a top plate is fixedly installed on the inner side of the limit seat. When the cleaning cartridge approaches the limit seat, the dust cleaning seat is restricted by the top plate on the limit seat and cannot move. As the dust cleaning seat and the cleaning cartridge move relative to each other, the suction pipe is finally connected to the inner cavity of the limit seat.

[0010] Furthermore, detection hydraulic cylinders are symmetrically fixedly installed on the inner side of the cleaning cylinder, and detection seats are fixedly installed on the ends of the cylinder rods of the two detection hydraulic cylinders.

[0011] Furthermore, the two detection hydraulic cylinders are connected through a connecting pipe, and an adjustment hydraulic cylinder connected to the inner cavity of the connecting pipe is fixedly installed in the middle of the outer side of the connecting pipe. A buffer piston is sealed in the adjusting hydraulic cylinder, and a buffer spring is arranged between the buffer piston and the middle of the adjusting hydraulic cylinder.

[0012] Furthermore, a sealing sleeve in the adjustment hydraulic cylinder is provided with a lifting piston located above the buffer piston, a lifting hydraulic cylinder connected to the lifting hydraulic cylinder is fixedly installed on the outer side of the adjustment hydraulic cylinder, and the cylinder rod of the lifting hydraulic cylinder is fixedly installed with an adjustment frame through a connecting rod, the adjustment frame is movably installed on the side of the cleaning cylinder by means of a guide rod, and the adjustment frame is movably connected to the connecting frame on the two pulleys.

[0013] Furthermore, the surface shape of the detection seat is a combination of a right-angled trapezoid and a rectangle.

[0014] The present invention has the following beneficial effects:

[0015] This invention provides ventilation equipment for modular power grid computer rooms. This ventilation system uses an intake fan to actively draw fresh air into the room, meeting the cooling needs of equipment and breathing requirements. During this intake process, a cylindrical filter cartridge serves as the first air purification barrier. This filter cartridge effectively intercepts and filters out impurities such as dust, mosquitoes, particulate matter, and pollen, ensuring high air cleanliness standards entering the room.

[0016] A movable cleaning cylinder is mounted on the outside of the filter cartridge, capable of reciprocating linear motion along the cartridge's axis. During its movement, the exhaust fan's suction duct connects to the interior of the cylinder, creating a highly efficient reverse suction system. When the cleaning cylinder reaches the outside of the filter cartridge, the suction duct draws air from the inside, creating a reverse suction force at the filter holes on the outside of the cartridge. This reverse suction effectively removes impurities accumulated in the filter holes, preventing clogging of the filter cartridge over time.

[0017] Through this real-time back-absorption and impurity removal design, this ventilation equipment achieves continuous and efficient cleaning of the filter cartridge, ensuring that the filtration performance of the filter cartridge is always maintained at the best state. This not only extends the service life of the filter cartridge and reduces maintenance costs, but also greatly improves the overall operating efficiency of the machine room ventilation system. Moreover, the low particle concentration and stable airflow characteristics of the clean air after multi-stage purification treatment when it flows through the heat exchanger can significantly improve the heat exchange efficiency. Specifically, in traditional ventilation systems, dust, microorganisms and other impurities in the air easily form an insulating layer on the surface of the heat exchanger fins, resulting in increased thermal resistance. This system uses a pre-filtration module to increase the filtration efficiency of particles ≥0.5μm in the air to more than 99%. Combined with the regular self-cleaning function, it can ensure that the surface of the heat exchanger remains clean for a long time, thereby achieving energy-saving and efficient air treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0019] The present invention can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0020] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall back three-dimensional structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the overall internal three-dimensional structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the filtering-related components when external air is sucked in according to the present invention;

[0024] Figure 5 The structure of the components of the cleaning cylinder and the suction fan of the present invention and their partial enlarged schematic diagram;

[0025] Figure 6 It is a schematic diagram of the overall internal front and partial cross-sectional structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the internal three-dimensional structure of the cleaning tube of the present invention;

[0027] Figure 8 For the present invention Figure 7 The enlarged structural diagram of the E position in the middle;

[0028] Figure 9 Schematic diagram of the position and connection structure between the pulley and the adjustment frame.

[0029] In the figure: 1. Chassis; 101. Air inlet; 102. Air outlet; 103. Air inlet duct; 104. Exhaust duct; 2. Activated carbon plate; 3. Heat exchanger; 4. Exhaust fan; 401. Suction duct; 5. Filter cartridge; 6. Suction fan; 601. Suction seat; 602. Air outlet duct; 7. Cleaning cylinder; 8. Reduction gearbox; 9. Pulley; 10. Adjustment frame; 11. Drive rod; 12. Limit seat; 13. Active end gear; 130. Driven end gear; 14. Cleaning seat; 140. Return spring; 15. Detection seat; 16. Detection hydraulic cylinder; 17. Connecting pipe; 18. Adjustment hydraulic cylinder; 180. Lifting piston; 181. Buffer piston; 182. Buffer spring; 19. Lifting hydraulic cylinder. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] For example 1, please refer to Figure 1-Figure 3It can be seen that an air inlet duct 103 and an air outlet duct 104 are fixedly installed on the back of the chassis 1. The air inlet duct 103 is connected to the inner cavity at the bottom of the chassis 1. An air intake fan 6 is fixedly installed in the cavity. The air intake fan 6 is driven by a permanent magnet motor. Figure 4 As can be seen, a suction seat 601 is fixedly mounted on the input end of the suction fan 6, and a filter cartridge 5 is fastened to the end of the suction seat 601 via a flange. Thus, when the motor drives the suction fan 6 to start, the suction fan 6 filters the external air through the filter cartridge 5, preventing impurities in the external air from being transported to the suction fan 6. The air filtered by the filter cartridge 5 is then discharged to the next process through the outlet pipe 602 on the suction fan 6.

[0032] from Figure 3 It can be seen that a heat exchanger 3 is fixedly installed in the middle of the chassis 1. The heat exchanger 3 is mainly a plate heat exchanger. There are two air flows in the interior that are isolated by heat-conducting and moisture-conducting materials and flow in opposite directions. When there is a temperature or humidity difference, heat or moisture transfer will occur, thereby realizing energy recovery. Among them, one end of the air outlet pipe 602 is connected to the inside of the pipe, and the other end of the pipe is transported to the top inner cavity of the chassis 1. An activated carbon plate 2 is movably installed in the inner cavity. When the filtered air passes through the activated carbon plate 2, it can purify the air, thereby removing harmful gases such as formaldehyde and benzene and eliminating odors. Finally, the purified air is transported to the computer room from the exhaust port 102 set at the top outside of the chassis 1.

[0033] At the same time, an exhaust fan 4 is fixedly installed in the middle of the chassis 1, and the exhaust fan 4 communicates with the heat exchanger 3 through the suction pipe 401. When the exhaust fan 4 sucks the heat exchanger 3, the air in the middle inner cavity of the chassis 1 enters the heat exchanger 3. The air delivery direction is opposite to the air flow direction input into the heat exchanger 3 by the air outlet pipe 602. In addition, in order to supplement the air in the middle of the inner cavity of the chassis 1, Figure 1 and Figure 3 It can be seen that an air inlet 101 is opened in the middle of the outer side of the chassis 1. The air inlet 101 can be used to transport the dirty air in the computer room to the middle of the inner cavity of the chassis 1. Finally, the dirty air is discharged into the exhaust pipe 104 through the exhaust fan 4 until the dirty air is discharged to the outside.

[0034] During long-term use, a large amount of impurities will accumulate on the outside of the filter cartridge 5. These impurities will prevent air from passing through the filter cartridge 5. In order to solve this problem, a cleaning cartridge 7 is provided on the outside of the filter cartridge 5. Figure 3 、 Figure 4 and Figure 6It can be seen that the inner cavity of the cleaning cylinder 7 and the suction pipe 401 are connected by a circular tube, and the circular tube has a certain reserved length to ensure that the cleaning cylinder 7 can subsequently reciprocate along the axial direction of the filter cartridge 5. In actual use, since the suction pipe 401 reversely sucks part of the outer area of ​​the filter cartridge 5 through the cleaning cylinder 7, the impurities filtered on the outer side of the filter cartridge 5 are sucked out through the suction pipe 401 and discharged to the outside through the exhaust pipe 104 by the exhaust fan 4.

[0035] On this basis, in order to realize that the cleaning cylinder 7 can fully clean the outer side of the filter cylinder 5, Figure 4-Figure 6 It can be seen that the side of the suction fan 6 is fixedly mounted with a reduction gearbox 8 fixedly mounted with its rotating shaft. When the motor drives the shaft of the fan blades in the suction fan 6 to rotate, the shaft can make the gears in the reduction gearbox 8 rotate synchronously. A driving end face gear 13 is fixedly mounted on the top output end of the reduction gearbox 8, and a pulley 9 is movably mounted on the rotating shaft of the reduction gearbox 8. A driven end face gear 130 is fastened to the bottom of the pulley 9. The driving end face gear 13 and the driven end face gear 130 can transmit torque when they are engaged. There are two pulleys 9, and the other one is supported by a guide rod for limiting. The two pulleys 9 are placed correspondingly near the two ends of the filter cartridge 5. In addition, refer to Figure 9 As shown, a connecting frame is provided between the two pulleys 9. This frame is used to mount and position the two pulleys 9, forcing the pulleys 9 to rotate only on the connecting frame. Furthermore, the connecting frame is movably mounted on a guide rod, ensuring that the connecting frame can drive the two pulleys 9 up and down. Preferably, the top of the guide rod is elliptical, thus limiting the connecting frame's up and down movement to the guide rod. The pulleys 9 are connected by a belt drive, with a drive rod 11 fixedly mounted on the outer side of the belt. When the reduction gearbox 8 drives the pulleys 9 to rotate, the belt drives the drive rod 11 to move synchronously. Correspondingly, a drive frame is bolted to the side of the cleaning cylinder 7. The drive frame has an elongated drive slot. The advantage of this design is that when the motor drives the suction fan 6 to rotate, the suction fan 6 is reduced in speed by the reduction gearbox 8, allowing the pulleys 9 to drive the belt. Because the drive rod 11 is inserted into the drive slot, when the belt drives the drive rod 11 to rotate, the drive rod 11 drives the cleaning cylinder 7 synchronously with the drive frame. In combination with the driving rod 11 which is driven by the belt to perform annular unidirectional motion, the cleaning cylinder 7 is driven by the driving rod 11 to perform axial reciprocating motion along the outer side of the filter cylinder 5 .

[0036] During this process, the suction pipe 401 continuously sucks the inner cavity of the cleaning cylinder 7 according to the circular tube. Therefore, the suction position of the cleaning cylinder 7 also changes relatively, ensuring that the cleaning cylinder 7 can completely suck and backwash the filtering part on the outer side of the filter cylinder 5 to clear the blockage.

[0037] Example 2 is a supplement to Example 1. Please refer to Figure 6 It can be seen that the inner side of the cleaning cylinder 7 is symmetrically arranged with a cleaning seat 14 which is sleeved on the outer side of the filter cylinder 5, and a reset spring 140 is provided between the two cleaning seats 14. The reset spring 140 is used to realize that the two cleaning seats 14 are relatively far apart. At this time, the inner cavity of the cleaning cylinder 7 and the chamber formed by the ends of the two cleaning seats 14 are connected to the circular tube on the suction pipe 401, so that when the suction pipe 401 sucks the inner cavity of the cleaning cylinder 7, the cleaning cylinder 7 has sufficient strength to suck out impurities blocked on the outer side of the filter cylinder 5.

[0038] On this basis, combined with Figure 3 、 Figure 4 and Figure 6 It can be seen that the two ends of the filter cartridge 5 are fixedly installed with the limit seats 12, and the inner side of the limit seat 12 is fixedly installed with a top plate. In this application, there are three top plates on the inner side of a limit seat 12, and the top plates extend from the end of the limit seat 12. The advantage of this design is that when the driving rod 11 drives the cleaning cylinder 7 to move to the end of the filter cartridge 5, the dust cleaning seat 14 close to the end of the limit seat 12 will rest on the limit seat 12, and the inner side of the cleaning cylinder 7 and the outer side of the limit seat 12 are fitted. As the cleaning cylinder 7 continues to approach the limit seat 12, the dust cleaning seat 14 is restricted by the top plate on the limit seat 12, causing it to compress the return spring 140. When the dust cleaning seat 14 enters the annular space opened in the middle of the inner side of the cleaning cylinder 7, the annular space is located Figure 7 In the middle A position, the suction pipe 401 will suck the chamber in the inner cavity of the limit seat 12. In actual use, the end of the cleaning seat 14 will push the large-volume impurities outside the filter cartridge 5 into the limit seat 12. When the suction pipe 401 sucks the inner cavity of the limit seat 12, it can suck out the impurities remaining in the limit seat 12, ensuring that the cleaning cylinder 7 can not only clean the impurities blocked in the filter cartridge 5, but also that the cleaning seat 14 can scrape off the impurities on the outside of the filter cartridge 5 when the cleaning cylinder 7 moves axially along the filter cartridge 5. Since the cleaning seat 14 is normally located inside the cleaning cylinder 7, the scraped impurities will not fall out of the cleaning cylinder 7. Finally, when the cleaning cylinder 7 is assembled with the limit seat 12, the suction pipe 401 can be used to completely clean the impurities adsorbed on the outside of the filter cartridge 5.

[0039] The third embodiment is a further improvement on the second embodiment. Figure 4 、 Figure 7 and Figure 8It can be seen that detection hydraulic cylinders 16 are symmetrically fixedly installed inside the cleaning barrel 7, and detection seats 15 are fixedly installed at the ends of the cylinder rods of the two detection hydraulic cylinders 16. The surface shape of the detection seat 15 is a combination of a right-angled trapezoid and a rectangle, wherein the inclined surface of the trapezoid faces the ash cleaning seat 14. The significance of this design is that when the ash cleaning seat 14 moves along the axial direction of the filter barrel 5 and approaches the detection seat 15, the inclined surface of the detection seat 15 is used to push the cylinder rod back into the inner cavity of the detection hydraulic cylinder 16. When the ash cleaning seat 14 reaches the end of the rectangle, it will also completely enter the annular space in the middle of the cleaning barrel 7, and the annular space is used to realize suction of the inside of the cleaning barrel 7 along the axial direction of the filter barrel 5.

[0040] The two detection hydraulic cylinders 16 are connected by a connecting pipe 17. An adjustment hydraulic cylinder 18, connected to the inner cavity of the connecting pipe 17, is fixedly mounted on the outer center of the connecting pipe 17. A buffer piston 181 is sealed within the adjustment hydraulic cylinder 18. A buffer spring 182 is interposed between the buffer piston 181 and the middle of the adjustment hydraulic cylinder 18. Under normal conditions, the spring force of the buffer spring 182 forces the buffer piston 181 to move hydraulic oil into the interior of the connecting pipe 17. A lift piston 180 is sealed within the adjustment hydraulic cylinder 18, located above the buffer piston 181. When the buffer piston 181 moves upward and abuts against the lift piston 180, it pushes the lift piston 180 upward in tandem. A lift hydraulic cylinder 19 is fixedly mounted on the outer side of the adjustment hydraulic cylinder 18. The cylinder rod of the lift hydraulic cylinder 19 is fixedly mounted to the adjustment frame 10 via a connecting rod. The adjustment frame 10 is movably mounted to the side of the cleaning barrel 7 via guide rods, allowing the adjustment frame 10 to move only along the guide rods. The adjustment frame 10 and the connecting frame on the pulley 9 are guided by dovetail grooves, ensuring that when the adjustment frame 10 moves upward, it can drive the two pulleys 9 to move upward synchronously; when the adjustment frame 10 moves left and right, it can move along the connecting frame on the pulley 9. Combined with the content of the first embodiment, it can be seen that when the adjustment frame 10 drives the pulley 9 upward using the connecting frame, the driven end face gear 130 moves upward and relatively away from the driving end face gear 13, so that the two are disengaged, and the rotation of the driving end face gear 13 will not drive the pulley 9 to rotate.

[0041] During the actual application of this third embodiment, under normal conditions, the inner cavities of the detection hydraulic cylinder 16 and the connecting tube 17 are filled with a sufficient amount of medium, such as hydraulic oil. Simultaneously, the buffer piston 181, pushed by the elastic force of the buffer spring 182, moves toward the connecting tube 17, causing the pressure in the inner cavity of the detection hydraulic cylinder 16 to increase. The cylinder rod in the detection hydraulic cylinder 16 pushes the detection seat 15 to its maximum extension. Simultaneously, the adjustment frame 10 and the connecting frame, along with their pulley 9, descend under the force of gravity, causing the cylinder rod in the lifting hydraulic cylinder 19 to retract. As the pulley 9 descends, it drives the driven end face gear 130 and the driving end face gear 13 into meshing transmission.

[0042] When the unit is operating, air is drawn in by suction fan 6, filtered by filter cartridge 5, and then passed through heat exchanger 3 and activated carbon plate 2 before being discharged from exhaust port 102. The turbid air in the room passes through air inlet 101, heat exchanger 3, and exhaust fan 4, finally being discharged from exhaust duct 104.

[0043] At the same time, when the suction fan 6 rotates, the reduction gearbox 8 drives the driving face gear 13 to rotate synchronously. Due to the meshing transmission between the driving face gear 13 and the driven face gear 130, the driven face gear 130 drives the pulley 9 to rotate synchronously. The rotating pulley 9 rotates the outer belt, and the drive rod 11 on the belt drives the cleaning cylinder 7 to reciprocate. The circular tube in the suction pipe 401 draws suction from the interior of the cleaning cylinder 7, allowing the cleaning cylinder 7 to remove any blockages from the outer portion of the filter cartridge 5.

[0044] If the filter cartridge 5 is seriously clogged during this process, in order to allow the cleaning cartridge 7 to have enough time to suction and clear the blockage on the filter cartridge 5, Figure 6 and Figure 7 It can be seen that when the filter cartridge 5 in the inner cavity of the cleaning cylinder 7 is severely clogged, the inner cavity of the cleaning cylinder 7 cannot absorb air from the filter cartridge 5, resulting in a relatively reduced pressure in the inner cavity of the cleaning cylinder 7. When the airflow pressure overcomes the elastic force of the return spring 140, the dust cleaning seats 14 are relatively close. If one dust cleaning seat 14 approaches and approaches the detection seat 15, it is blocked by the detection seat 15, increasing the resistance to the movement of the dust cleaning seat 14. Subsequently, the other dust cleaning seat 14 will further move closer due to the reduced pressure in the inner cavity of the cleaning cylinder 7, until both dust cleaning seats 14 are in contact with their corresponding detection seat 15. Finally, as the pressure between the two cleaning seats 14 overcomes the resistance of the cylinder rod on the detection seat 15 to retract, it pushes the buffer piston 181 to compress the buffer spring 182 until the buffer piston 181 contacts the lifting piston 180. When the lifting piston 180 moves upward, the hydraulic oil pressure in the inner cavity of the adjustment hydraulic cylinder 18 increases, and the cylinder rod in the lifting hydraulic cylinder 19 pushes the adjustment frame 10 upward. The upward movement of the adjustment frame 10 drives the connecting frame and the pulley 9 above it upward, forcing the active end gear 13 and the driven end gear 130 to disengage. At this time, the pulley 9 will also stop rotating, and the cleaning cylinder 7 will also perform fixed-point suction for a long time at this location, ultimately forcing the filter cartridge 5 to clear the blockage. At this time, the cleaning seat 14 has not crossed the annular space in the middle of the cleaning cylinder 7, and the inner cavity of the cleaning cylinder 7 is still not connected to the outside.

[0045] As the cleaning cylinder 7 drives the cleaning seat 14 along the filter cartridge 5, if impurities on the outside of the filter cartridge 5 severely hinder the movement of the cleaning seat 14, this will cause the cleaning seat 14 to compress the return spring 140 when the cleaning cylinder 7 drives the cleaning seat 14. However, when the cleaning seat 14 reaches the detection seat 15, the filter cartridge 5 in that area is relatively unobstructed, so the other cleaning seat 14 will not move. Subsequently, when the cleaning cylinder 7 drives the cleaning seat 14 further forward, the cleaning seat 14 hits the inclined surface of the detection seat 15, forcing the detection seat 15 to move upward. After the cleaning seat 14 moves to the annular space in the middle of the cleaning cylinder 7, the end of the cleaning seat 14 hits the bottom rectangular end of the detection seat 15, thereby further restricting the movement of the cleaning seat 14. Although the inspection seat 15 now moves upward, retracting the cylinder rod into the inspection hydraulic cylinder 16, the unilateral retraction of the cylinder rod only causes the buffer piston 181 to move upward and compress the buffer spring 182, preventing the buffer piston 181 from contacting the lifting piston 180. Consequently, the lifting hydraulic cylinder 19 will not push the adjustment frame 10 upward. At this point, as the drive rod 11 drives the cleaning cylinder 7, it is forced to move with sufficient strength, using the end of the cleaning seat 14 to push against impurities and remove stubborn impurities. After cleaning is complete, the return spring 140 and the buffer spring 182 push the entire structure back to normal.

[0046] When the cleaning cylinder 7 moves to the end, impurities outside the filter cartridge 5 can be discharged from the suction pipe 401, and the specific method is the same as that described in Example 2. Finally, as the belt drives the drive rod 11 to rotate in a circular shape, the cleaning cylinder 7 reciprocates along the filter cartridge 5, ensuring that the filter cartridge 5 does not accumulate impurities on its exterior and cause air flow problems during operation.

Claims

1. A ventilation device for a modular power grid room, characterized in that: include: The chassis (1) is provided with an air intake fan (6) inside. The input end of the air intake fan (6) is fixed with a filter cartridge (5) through an air intake seat (601), so that the air intake fan (6) can draw in external air. After the air is filtered by the filter cartridge (5), the air flow passes through the heat exchanger (3) and the activated carbon plate (2) in sequence, and is finally discharged to the machine room from the exhaust port (102); the turbid air in the room is discharged through the air inlet (101) and the heat exchanger (3). When the filtered air passes through the heat exchanger (3), heat exchange is performed between the indoor and outdoor air, thereby achieving energy saving; finally, the air passes through the exhaust fan (4) and is discharged to the outside from the exhaust pipe (104); The cleaning cylinder (7) is sleeved on the outside of the filter cylinder (5), and the inner cavity is connected to the air suction pipe (401) by a circular pipe. When the air suction pipe (401) is sucking, the cleaning cylinder (7) can reversely pump out the blockage on the outside of the filter cylinder (5); A reduction gearbox (8) is coaxially fastened to the suction fan (6), and the reduction gearbox (8) drives the pulley (9) to rotate, and a driving rod (11) is fixed to a belt connected to the outer side of the pulley (9); A driving frame is fixedly mounted on the side of the cleaning cylinder (7), and a driving groove is provided on the driving frame. The driving rod (11) is inserted into the driving groove. When the belt drives the driving rod (11) to rotate in a circular manner, the driving rod (11) drives the cleaning cylinder (7) to reciprocate along the axial direction of the filter cylinder (5), and the cleaning cylinder (7) is used to completely back-pump and clear the outside of the filter cylinder (5).

2. The ventilation equipment for a modular power grid room according to claim 1, characterized in that: A driving end face gear (13) is fixedly mounted on the top output end of the reduction gear box (8), and a driven end face gear (130) meshing with the driving end face gear (13) is fixedly mounted on the bottom of the pulley (9), and a connecting frame is used for guiding and positioning between the two pulleys (9).

3. The ventilation equipment for a modular power grid room according to claim 1, characterized in that: A dust cleaning seat (14) sleeved on the outer side of the filter cartridge (5) is symmetrically arranged on the inner side of the cleaning cartridge (7), and a return spring (140) is provided between the two dust cleaning seats (14).

4. The ventilation equipment for a modular power grid room according to claim 3, characterized in that: The filter cartridge (5) is fixedly mounted with a limit seat (12) at both ends, and a top plate is fixedly mounted on the inner side of the limit seat (12). When the cleaning cartridge (7) approaches the limit seat (12), the dust cleaning cartridge (14) is restricted by the top plate on the limit seat (12) and cannot move. As the dust cleaning cartridge (14) and the cleaning cartridge (7) move relative to each other, the suction pipe (401) is finally connected to the inner cavity of the limit seat (12).

5. The ventilation equipment for a modular power grid room according to claim 4, characterized in that: Detection hydraulic cylinders (16) are symmetrically fixedly installed on the inner side of the cleaning cylinder (7), and detection seats (15) are fixedly installed on the ends of the cylinder rods of the two detection hydraulic cylinders (16).

6. The ventilation equipment for a modular power grid room according to claim 5, characterized in that: The two detection hydraulic cylinders (16) are connected via a connecting pipe (17), and an adjustment hydraulic cylinder (18) connected to the inner cavity of the connecting pipe (17) is fixedly installed on the middle portion of the outer side of the connecting pipe (17). A buffer piston (181) is sealed in the adjusting hydraulic cylinder (18), and a buffer spring (182) is provided between the buffer piston (181) and the middle portion of the adjusting hydraulic cylinder (18).

7. The ventilation equipment for a modular power grid room according to claim 6, characterized in that: A sealing sleeve in the adjustment hydraulic cylinder (18) is provided with a lifting piston (180) located above the buffer piston (181). A lifting hydraulic cylinder (19) connected to the adjustment hydraulic cylinder (18) is fixedly installed on the outer side of the adjustment hydraulic cylinder (18), and an adjustment frame (10) is fixedly installed on the cylinder rod of the lifting hydraulic cylinder (19) through a connecting rod. The adjustment frame (10) is movably installed on the side of the cleaning cylinder (7) using a guide rod. The adjustment frame (10) is movably connected to the connecting frame on the two pulleys (9).

8. The ventilation equipment for a modular power grid room according to claim 5, characterized in that: The surface shape of the detection seat (15) is a combination of a right-angled trapezoid and a rectangle.

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