An explosion-proof box-type transformer

Abstract

This invention discloses an explosion-proof box-type transformer, relating to the field of marine fire alarm technology. It includes an explosion-proof outer shell, an explosion-proof inner shell, a heat dissipation duct, a transformer body, and a heat dissipation mechanism. The heat dissipation mechanism includes a first heat dissipation fin, a negative pressure fan, an air guide box, a filter box, a cooling box, and a filter housing. Through the heat dissipation mechanism, the explosion-proof outer shell, the explosion-proof inner shell, and the heat dissipation duct, in conjunction with the first heat dissipation fin, rapidly dissipate heat from the transformer body. The negative pressure fan, air guide box, filter box, cooling box, filter housing, cooling structure, and antistatic filter work together to filter and cool the gas. A rotating block, scraper, first rotating rod, first bevel gear structure, and first transmission rod clean impurities from the antistatic filter. A striking component, first rotating ring, connecting strip, reciprocating screw transmission structure, second bevel gear structure, first rotating gear, second rotating ring, and arc-shaped rack strike and clean the antistatic filter.

Description

Technical Field

[0001] This invention belongs to the field of transformer technology, specifically an explosion-proof box-type transformer. Background Technology

[0002] A transformer is a static electrical device that uses the principle of electromagnetic induction to convert alternating current of one voltage level into alternating current of another voltage level at the same frequency. It mainly consists of an iron core and windings (coils). A prefabricated substation integrates multiple functional units, such as high-voltage switches, transformers, low-voltage distribution, and protection devices, into a single steel structure enclosure according to a specific wiring method. Explosion-proof prefabricated transformers are special power distribution equipment developed from conventional prefabricated transformers. The core difference lies in their enclosure, designed according to strict explosion-proof standards. This enclosure not only withstands the explosion pressure caused by internal faults but also effectively prevents internal flames from spreading to the external environment, achieving "internal explosion, no external propagation." Due to its superior safety, this type of equipment is mandated for use in hazardous environments such as coal mines, oil and gas fields, and chemical plants where explosive gases or dust exist.

[0003] Existing explosion-proof box-type transformers, due to explosion-proof requirements, typically have an explosion-proof enclosure designed on the outside of the transformer body. This enclosure, designed for safety, physically cuts off the direct exchange path between the internal hot air and the external cold air. The air inside the enclosure can only circulate within a closed space, unable to circulate with the outside atmosphere. Combined with factors such as the transformer's own heat generation, overload operation, or poor heat dissipation, and the fact that these enclosures are usually welded from steel plates, although metal is a good conductor of heat, the thermal conductivity of steel itself is far less than the heat dissipation effect of internal air convection. Relying on metal heat conduction becomes a long, relay-like heat transfer process, easily causing internal heat to accumulate. This results in poor heat dissipation for explosion-proof box-type transformers, failing to meet user needs. Summary of the Invention

[0004] The present invention aims to solve the technical problems existing in the prior art; to this end, the present invention proposes an explosion-proof box-type transformer.

[0005] An explosion-proof box-type transformer includes an explosion-proof outer shell, an explosion-proof inner shell disposed inside the explosion-proof outer shell, and a transformer body disposed inside the explosion-proof inner shell. The explosion-proof outer shell and the explosion-proof inner shell are provided with heat dissipation mechanisms for cooling the transformer body. A heat dissipation duct is provided between the explosion-proof outer shell and the explosion-proof inner shell. The heat dissipation mechanism includes several first heat dissipation fins arranged parallel to each other on the explosion-proof inner shell. One end of each first heat dissipation fin extends into the interior of the explosion-proof inner shell, and the other end of each first heat dissipation fin is disposed on the outer side of the explosion-proof inner shell and evenly distributed in the heat dissipation duct. The heat dissipation mechanism also includes several negative pressure fans disposed at one end of the explosion-proof outer shell and connected to the heat dissipation duct, an air guide box disposed at the other end of the explosion-proof outer shell and connected to the heat dissipation duct, and a connection to the safety duct. The system includes a filter box mounted on the outer wall of the air guide box, a cooling box located on the outer side of the filter box, and a filter box located on the outer side of the cooling box. Each filter box has an air inlet. The filter box, cooling box, and filter box are interconnected. A protective net is installed on the air inlet to prevent large particles from entering the filter box. The filter box contains an antistatic filter core for dust filtration. The filter box contains a filter assembly for preliminary gas filtration. The cooling box contains a cooling structure for cooling the filtered gas. The cooled gas is then filtered again through the antistatic filter core before entering the heat dissipation duct, where heat is carried away from the duct and the first heat dissipation fins, thus achieving heat dissipation.

[0006] As a further aspect of the present invention: the cooling structure includes a cooling ring channel installed on the inner wall of the cooling box and a plurality of second heat dissipation fins arranged parallel to the inner side of the cooling ring channel. Both ends of the second heat dissipation fins extend into the cooling ring channel. The cooling ring channel has a U-shaped structure. Coolant is stored inside the cooling ring channel. A refrigeration device for cooling the coolant is provided at the bottom of the cooling box.

[0007] As a further aspect of the present invention: the filter box has a filter chamber inside that matches the filter assembly. The filter assembly includes multiple mounting rings disposed on the inner wall of the filter chamber and antistatic filter screens fixed on the mounting rings. The multiple antistatic filter screens are arranged in parallel, and the filter pore size of the multiple antistatic filter screens gradually decreases, with the filter pore size of the antistatic filter screen closest to the protective net being the largest.

[0008] As a further aspect of the present invention: the filter box is equipped with a cleaning component for cleaning the antistatic filter screen. The cleaning component includes a rotating block rotatably disposed on one side of the antistatic filter screen and scrapers arranged in a circular array on the rotating block for cleaning the antistatic filter screen. The cleaning component also includes a first rotating rod that vertically and coaxially connects adjacent rotating blocks and a first bevel gear structure that controls the rotation of the first rotating rod. The first bevel gear structure is disposed on the front side of the inside of the filter box. One end of the first rotating rod is attached to the inner wall of the filter box and connected to the first bevel gear structure. The upper end of the filter box is equipped with a first explosion-proof motor that controls the rotation of the first bevel gear structure. A first transmission rod connected to the first explosion-proof motor is coaxially disposed on the first bevel gear structure, so that the first explosion-proof motor controls the rotating block to rotate through the first bevel gear structure and the first rotating rod, so that the rotating block drives the scrapers to clean the antistatic filter screen.

[0009] As a further aspect of the present invention: the cleaning assembly further includes several connecting strips arranged in a circular array on the outer wall of the rotating block and a first rotating ring that is fitted and rotated on the inner wall of the filter chamber and fixed to one end of the connecting strips. The filter box has a first rotating groove that matches the first rotating ring. The cleaning assembly also includes several striking elements that are evenly arranged on the connecting strips and alternately strike the antistatic filter screen. The head of the striking element is made of a flexible material, and both the scraper and the striking element are coated with an anti-stick coating. Several moving holes for the striking elements are opened inside the connecting strips. Several sealing rings that fit with the striking elements are installed on the outer wall of the connecting strips.

[0010] As a further aspect of the present invention: the cleaning assembly further includes several reciprocating screw drive structures disposed inside the connecting bar and controlling the horizontal movement of the striking components, and a second bevel gear structure coaxially connected to one end of the reciprocating screw drive structure. A second rotating rod is rotatably mounted on the connecting bar to control the synchronous operation of the several second bevel gear structures. One end of the second rotating rod passes through the first rotating ring and extends into the interior of the filter box. The cleaning assembly also includes a first rotating gear installed at one end of the second rotating rod and a second rotating ring disposed inside the filter box. The second rotating ring is provided with several arc-shaped racks meshing with the first rotating gear. The second rotating ring is configured as a toothed ring. The filter box is provided with a second rotating groove that matches the first rotating gear and the second rotating ring. When the connecting bar drives the first rotating ring to rotate, the second rotating rod drives the first rotating gear to rotate on the second rotating ring. Thus, the second rotating rod controls the several striking components to strike the antistatic filter screen through the reciprocating screw drive structure and the second bevel gear structure, thereby improving the cleaning effect of the antistatic filter screen.

[0011] As a further aspect of the present invention: the cleaning assembly further includes several discharge grooves disposed in the filter chamber and a collection box installed on the lower end face of the filter box and communicating with the discharge grooves. The first and second rotating grooves are both aligned and communicating with the discharge grooves. The filter box is provided with a sealing assembly for sealing the second rotating groove at the discharge groove. The sealing assembly includes a sealing block that is movably disposed on the filter box and seals the second rotating groove, a guide strip fixed on the outer side of the sealing block, and a control gear for moving the guide strip. The guide strip has a first groove that matches the moving gear. A moving rack that meshes with the moving gear is installed in the first groove. The filter box has a sealing groove communicating with the second rotating groove. One end of the sealing block is movably disposed in the sealing groove. A guide rod that is slidably connected to the sealing block is vertically disposed on the sealing groove. A return spring connected to the sealing block is sleeved on the guide rod. When the moving gear rotates, the guide strip controls the sealing block to open the second rotating groove by moving the rack. The guide rod and the return spring cooperate to reset the sealing block.

[0012] As a further aspect of the present invention: the sealing assembly further includes several fixing bars vertically arranged outside the first rotating ring and used in conjunction with the first rotating gear, a transmission rack arranged on the outer surface of the fixing bars, and a transmission gear rotatably arranged on the filter box and meshing with the transmission rack. The transmission gear is provided with a second transmission rod coaxially connected to the moving gear. The filter box is provided with a second groove matching the fixing bars. When the fixing bars move to the transmission gear, the transmission rack controls the moving gear and the moving rack to move the sealing block away through the transmission gear.

[0013] As a further aspect of the present invention: the filter box is provided with an adjustment assembly for adjusting the position of the second rotating ring. The adjustment assembly includes an adjustment ring coaxially connected to the second rotating ring, an adjustment toothed ring disposed on the outer wall of the adjustment ring, and an adjustment gear for controlling the rotation of the adjustment toothed ring. The adjustment toothed ring and the adjustment gear mesh, the adjustment toothed ring and the adjustment ring are coaxially connected, the adjustment toothed ring is configured as a toothed ring, and the adjustment ring is provided with an opening.

[0014] As a further aspect of the present invention: the adjustment assembly further includes a third transmission rod coaxially connected to the adjustment gear and a third bevel gear structure coaxially connected to the third transmission rod. A connecting rod is coaxially mounted on the third bevel gear structure. A second explosion-proof motor for controlling the rotation of the connecting rod is installed on the outer wall of the filter box. The second explosion-proof motor also limits the adjustment ring through the adjustment gear and the adjustment gear ring, so that the third bevel gear structure controls the adjustment ring to rotate through the third transmission rod, the adjustment gear and the adjustment gear ring, thereby controlling the rotation of the second rotating ring and adjusting the position of the arc-shaped rack on the second rotating ring, thereby adjusting the striking position of the striking element.

[0015] As a further aspect of the present invention: the adjustment assembly further includes a plurality of limiting blocks mounted on the filter box, and the side of the adjustment ring away from the second rotating ring is provided with a limiting groove that matches the limiting block. The limiting block is movably disposed in the limiting groove to limit the rotation of the adjustment ring.

[0016] Compared with the prior art, the beneficial effects of the present invention are: (1) The present invention uses a heat dissipation mechanism, an explosion-proof outer shell, an explosion-proof inner shell and a heat dissipation duct to form a double explosion-proof structure, and works with the first heat dissipation fins to quickly dissipate heat from the transformer body. The negative pressure fan, air guide box, filter box, cooling box, filter box, protective net, antistatic filter core, cooling structure and antistatic filter screen are used together to filter and cool the gas before introducing it into the heat dissipation duct, thereby improving the heat dissipation effect of the transformer body. The rotating block, scraper, first rotating rod, first bevel gear structure, first explosion-proof motor and first transmission rod are used to clean impurities from the antistatic filter screen. The first rotating ring, reciprocating screw transmission structure, second bevel gear structure, second rotating rod, first rotating gear, second rotating ring and arc rack are used to control the striking part to strike and clean the antistatic filter screen during the rotation of the connecting bar, thereby improving the filtration effect of the antistatic filter screen, extending the working cycle of the antistatic filter screen and improving the use effect of the heat dissipation mechanism.

[0017] (2) The present invention, through the sealing component, the first rotating groove and the second rotating groove cooperate to guide the rotation of the first rotating ring and the first rotating gear. Through the sealing block and the guide strip, the second rotating groove can be sealed, which can prevent impurities at the material discharge groove from entering the second rotating groove. It effectively protects the first rotating gear, the second rotating ring and the arc rack in the second rotating groove, and avoids affecting the operation of the first rotating gear and the arc rack. Through the fixed strip, the transmission rack, the second transmission rod and the transmission gear, the first rotating ring can control the moving gear to rotate during the rotation. The moving rack and the guide strip control the movement of the sealing block to open the second rotating groove, avoid interfering with the rotation of the first rotating gear, improve the sealing effect of the sealing component and improve the use effect of the transformer.

[0018] (3) In this invention, the second explosion-proof motor controls the third bevel gear structure to rotate through the connecting rod, so that the third bevel gear structure controls the adjusting gear to rotate through the third transmission rod, thereby causing the adjusting gear to drive the adjusting gear ring to rotate. The limiting block and the limiting groove cooperate to guide and limit the rotation of the adjusting ring. The adjusting gear ring and the adjusting ring cooperate to control the second rotating ring to rotate, so that the second rotating ring drives the arc rack to move, adjusting the meshing position of the arc rack and the first rotating gear. This allows the connecting bar to control the striking part to strike different positions of the anti-static filter screen during the rotation process, improving the cleaning effect of the striking part on the anti-static filter screen, and avoiding the striking part striking the same position of the anti-static filter screen at too high a frequency, thus protecting the anti-static filter screen and improving the performance of the transformer. Attached Figure Description

[0019] Figure 1 This is an overall structural diagram of the present invention.

[0020] Figure 2 This is a cross-sectional view of the explosion-proof housing and heat dissipation mechanism in this invention.

[0021] Figure 3 This is a partial structural diagram of the cooling structure in this invention.

[0022] Figure 4 This is a partial structural diagram of the cleaning component and heat dissipation mechanism in this invention.

[0023] Figure 5 This is a partial structural diagram of the scraper and connecting strip in this invention.

[0024] Figure 6 In this invention Figure 5 Enlarged view of the structure at point A in the middle.

[0025] Figure 7 This is a partial structural diagram of the striking element and the first rotating gear in this invention.

[0026] Figure 8 This is a partial structural diagram of the connecting strip and the first rotating ring in this invention.

[0027] Figure 9 In this invention Figure 8 Enlarged view of the structure at point C.

[0028] Figure 10 This is a partial structural diagram of the sealing component in this invention.

[0029] Figure 11 This is a partial structural diagram of the antistatic filter and the striking element in this invention.

[0030] Figure 12 In this invention Figure 11Enlarged view of the structure at point B.

[0031] In the diagram: 1. Explosion-proof outer shell; 2. Explosion-proof inner shell; 3. Heat dissipation duct; 4. First heat dissipation fins; 5. Negative pressure fan; 6. Air guide box; 7. Filter box; 8. Cooling box; 9. Filter box; 10. Air inlet; 11. Protective net; 12. Antistatic filter core; 13. Cooling structure; 14. Cooling ring channel; 15. Second heat dissipation fins; 16. Refrigeration equipment; 17. Mounting ring; 18. Antistatic filter screen; 19. Rotating block; 20. Scraper; 21. First rotating rod; 22. First bevel gear structure; 23. First explosion-proof motor; 24. First transmission rod; 25. Connecting strip; 26. First rotating ring; 27. Knock 28. Reciprocating screw drive structure; 29. ​​Second bevel gear structure; 30. Second rotating rod; 31. First rotating gear; 32. Second rotating ring; 33. Collection box; 34. Sealing block; 35. Guide bar; 36. Moving gear; 37. Moving rack; 38. Guide rod; 39. Return spring; 40. Fixing bar; 41. Transmission rack; 42. Transmission gear; 43. Second transmission rod; 44. Arc rack; 45. Adjusting ring; 46. Adjusting gear ring; 47. Adjusting gear; 48. Limiting block; 49. Third transmission rod; 50. Third bevel gear structure; 51. Connecting rod; 52. Second explosion-proof motor. Detailed Implementation

[0032] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1 Please see Figures 1-3This application provides an explosion-proof box-type transformer, including an explosion-proof outer shell 1, an explosion-proof inner shell 2 disposed inside the explosion-proof outer shell 1, and a transformer body disposed inside the explosion-proof inner shell 2. Multiple temperature sensors are provided on both the explosion-proof outer shell 1 and the explosion-proof inner shell 2. When the temperature sensor reaches a set value, a heat dissipation mechanism is activated. Heat dissipation mechanisms for cooling the transformer body are provided on both the explosion-proof outer shell 1 and the explosion-proof inner shell 2. A heat dissipation duct 3 is provided between the explosion-proof outer shell 1 and the explosion-proof inner shell 2. The heat dissipation mechanism includes several first heat dissipation fins 4 arranged parallel to each other on the explosion-proof inner shell 2. One end of each first heat dissipation fin 4 extends into the interior of the explosion-proof inner shell 2, and the other end of each first heat dissipation fin 4 is disposed on the outside of the explosion-proof inner shell 2 and evenly distributed in the heat dissipation duct 3. The heat dissipation mechanism also includes several negative pressure fans 5 disposed at one end of the explosion-proof outer shell 1 and connected to the heat dissipation duct 3, and disposed within the explosion-proof outer shell 1. The outer casing 1 has an air guide box 6 connected to the heat dissipation duct 3 at the other end, a filter box 7 installed on the outer wall of the air guide box 6, a cooling box 8 and a filter box 9 installed on the outer side of the cooling box 8. The filter box 9 has an air inlet 10. The filter box 7, cooling box 8 and filter box 9 are interconnected. A protective net 11 is installed on the air inlet 10. The protective net 11 can prevent large particles of impurities from entering the filter box 9. The filter box 7 has an antistatic filter core 12 for dust filtration inside. The filter box 9 has a filter assembly for preliminary filtration of gas inside. The cooling box 8 has a cooling structure 13 for cooling the filtered gas inside. The cooled gas is filtered again through the antistatic filter core 12 and then enters the heat dissipation duct 3 to remove the heat from the heat dissipation duct 3 and the first heat dissipation fins 4, thus performing heat dissipation.

[0034] In this embodiment, the negative pressure fan 5 is started to extract the high-temperature gas inside the heat dissipation duct 3 and allow the external gas to enter the filter box 9. The filter assembly performs preliminary filtration of the gas and introduces the filtered gas into the cooling box 8, where the cooling structure 13 cools the gas. The cooled gas then enters the filter box 7, where the antistatic filter core 12 performs a second filtration. The filtered gas then enters the heat dissipation duct 3 through the air guide box 6 and dissipates heat from the explosion-proof inner shell 2 and the first heat dissipation fins 4.

[0035] In this invention, the cooling structure 13 includes a cooling ring channel 14 installed on the inner wall of the cooling box 8 and a plurality of second heat dissipation fins 15 arranged in parallel on the inner side of the cooling ring channel 14. Both ends of the second heat dissipation fins 15 extend into the cooling ring channel 14. The cooling ring channel 14 has a U-shaped structure. Coolant is stored inside the cooling ring channel 14. A refrigeration device 16 for cooling the coolant is provided at the bottom of the cooling box 8.

[0036] In this embodiment, when gas enters the cooling box 8, the second heat dissipation fins 15 come into contact with the gas, cooling the gas and allowing the coolant to carry away the heat from the second heat dissipation fins 15. The refrigeration equipment 16 is then activated to dissipate heat from the coolant.

[0037] In this invention, the filter box 9 has a filter chamber inside that matches the filter assembly. The filter assembly includes multiple mounting rings 17 disposed on the inner wall of the filter chamber and antistatic filter screens 18 fixed on the mounting rings 17. The antistatic filter screens 18 are arranged in parallel, and the filter pore size of the antistatic filter screens 18 gradually decreases. The filter pore size of the antistatic filter screen 18 closest to the protective net 11 is the largest. The antistatic filter screen 18 is made of a high-toughness and fatigue-resistant filter screen material.

[0038] In this embodiment, when external gas enters the filter box 9, multiple antistatic filters 18 sequentially filter the gas.

[0039] Example 2 Based on Example 1, referring to Figures 2-7 This is the second embodiment of the present invention. In this embodiment, the filter box 9 is internally equipped with a cleaning component for cleaning the antistatic filter 18. The cleaning component includes a rotating block 19 rotatably disposed on one side of the antistatic filter 18 and scrapers 20 arranged in a circular array on the rotating block 19 for cleaning the antistatic filter 18. The cleaning component also includes a first rotating rod 21 vertically and coaxially connecting adjacent rotating blocks 19 and a first bevel gear structure 22 controlling the rotation of the first rotating rod 21. The first bevel gear structure 22 is disposed on the front side of the interior of the filter box 9. One end of the first rotating rod 21 is attached to the inner wall of the filter box 9 and connected to the first bevel gear structure 22. The upper end of the filter box 9 is equipped with a first explosion-proof motor 23 controlling the rotation of the first bevel gear structure 22. A first transmission rod 24 coaxially disposed on the first bevel gear structure 22 and connected to the first explosion-proof motor 23, so that the first explosion-proof motor 23 controls the rotating block 19 to rotate through the first bevel gear structure 22 and the first rotating rod 21, causing the rotating block 19 to drive the scrapers 20 to clean the antistatic filter 18.

[0040] In this embodiment, the first explosion-proof motor 23 is started, which drives the first transmission rod 24 to rotate. The first transmission rod 24 drives the first bevel gear structure 22 to rotate. The first bevel gear structure 22 drives the first rotating rod 21 to rotate, so that the first rotating rod 21 drives the rotating block 19 to rotate. The rotating block 19 drives the scraper 20 to rotate, so that the scraper 20 cleans the antistatic filter screen 18.

[0041] The cleaning component of this invention also includes several connecting strips 25 arranged in a circular array on the outer wall of the rotating block 19 and a first rotating ring 26 that is fitted and rotated on the inner wall of the filter chamber and fixed to one end of the connecting strips 25. The filter box 9 is provided with a first rotating groove that matches the first rotating ring 26. The cleaning component also includes several striking elements 27 that are evenly arranged on the connecting strips 25 and strike the antistatic filter 18 in an alternating manner. The head of the striking element 27 is made of a flexible material, and both the scraper 20 and the striking element 27 are coated with an anti-stick coating. Several moving holes are provided inside the connecting strips 25 for the striking elements 27 to move. Several sealing rings that fit with the striking elements 27 are installed on the outer wall of the connecting strips 25.

[0042] In this embodiment, when the rotating block 19 rotates, it causes the connecting strip 25 to rotate, and the connecting strip 25 causes the first rotating ring 26 to rotate on the first rotating groove. The connecting strip 25 causes the striking member 27 to strike and clean the antistatic filter screen 18.

[0043] The cleaning assembly of this invention also includes several reciprocating screw drive structures 28 disposed inside the connecting bar 25 and controlling the horizontal movement of the striking member 27, and a second bevel gear structure 29 coaxially connected to one end of the reciprocating screw drive structure 28. A second rotating rod 30 is rotatably mounted on the connecting bar 25 to control the synchronous operation of the several second bevel gear structures 29. One end of the second rotating rod 30 passes through the first rotating ring 26 and extends into the interior of the filter box 9. The cleaning assembly also includes a first rotating gear 31 installed at one end of the second rotating rod 30 and a second rotating ring 32 disposed inside the filter box 9. The filter box 9 is provided with several arc-shaped racks 44 that mesh with the first rotating gear 31. The second rotating ring 32 is a toothed ring. The filter box 9 is provided with a second rotating groove that matches the first rotating gear 31 and the second rotating ring 32. When the connecting bar 25 drives the first rotating ring 26 to rotate, the second rotating rod 30 drives the first rotating gear 31 to rotate on the second rotating ring 32. Thus, the second rotating rod 30 controls several striking parts 27 to strike the antistatic filter screen 18 through the reciprocating screw transmission structure 28 and the second bevel gear structure 29, thereby improving the cleaning effect of the antistatic filter screen 18.

[0044] In this embodiment, when the connecting bar 25 rotates, the connecting bar 25 and the first rotating ring 26 drive the first rotating gear 31 to rotate. When the first rotating gear 31 rotates to the arc-shaped rack 44, the arc-shaped rack 44 meshes with the first rotating gear 31, causing the arc-shaped rack 44 to drive the first rotating gear 31 to rotate. The first rotating gear 31 drives the second rotating rod 30 to rotate, and the second rotating rod 30 drives several second bevel gear structures 29 to rotate. The second bevel gear structures 29 drive the reciprocating screw transmission structure 28 to work, causing the reciprocating screw transmission structure 28 to drive the striking member 27 to move, so that the striking member 27 knocks and cleans the anti-static filter screen 18.

[0045] Example 3 Based on Example 2, referring to Figures 4-6 and Figures 8-10 This is the third embodiment of the present invention. In this embodiment, the cleaning component further includes several discharge grooves disposed in the filter chamber and a collection box 33 installed on the lower end face of the filter box 9 and communicating with the discharge grooves. The first and second rotating grooves are both aligned and communicating with the discharge grooves. The filter box 9 is provided with a sealing component to seal the second rotating groove at the discharge groove. The sealing component includes a sealing block 34 that is movably disposed on the filter box 9 and seals the second rotating groove, a guide strip 35 fixed to the outer side of the sealing block 34, and a gear 36 that controls the movement of the guide strip 35. The guide strip 35 has a first recess that matches the moving gear 36. The filter box 9 has a first groove in which a moving rack 37 meshes with the moving gear 36. A sealing groove communicating with the second rotating groove is provided on the filter box 9. One end of the sealing block 34 is movably disposed in the sealing groove. A guide rod 38 is vertically provided on the sealing groove and slidably connected to the sealing block 34. A guide hole matching the guide rod 38 is provided on the sealing block 34. A return spring 39 connected to the sealing block 34 is sleeved on the guide rod 38. When the moving gear 36 rotates, the moving rack 37 causes the guide rod 35 to control the sealing block 34 to open the second rotating groove. The guide rod 38 and the return spring 39 work together to allow the sealing block 34 to return to its original position.

[0046] In this embodiment, when the tapping member 27 and the scraping member 20 guide the impurities cleaned by the antistatic filter 18 into the feeding groove, the impurities enter the collection box 33 through the feeding groove.

[0047] The sealing assembly of the present invention also includes several fixing bars 40 vertically arranged outside the first rotating ring 26 and used in conjunction with the first rotating gear 31, a transmission rack 41 arranged on the outer surface of the fixing bars 40, and a transmission gear 42 rotatably arranged on the filter box 9 and meshing with the transmission rack 41. The transmission gear 42 is provided with a second transmission rod 43 coaxially connected to the moving gear 36. The filter box 9 is provided with a second groove that matches the fixing bars 40. When the fixing bars 40 move to the transmission gear 42, the transmission rack 41 controls the moving gear 36 and the moving rack 37 to move the sealing block 34 away through the transmission gear 42.

[0048] In this embodiment, when the first rotating ring 26 rotates, it drives the fixed strip 40 to rotate, which in turn drives the transmission rack 41 to rotate. The transmission rack 41 then drives the transmission gear 42 to rotate, which in turn drives the second transmission rod 43 to rotate. The second transmission rod 43 then drives the moving gear 36 to rotate, which in turn drives the moving rack 37 to move. The moving rack 37 then drives the guide strip 35 to move, which in turn drives the sealing block 34 to move. This causes the sealing block 34 to open the second rotating groove and press the return spring 39 on the guide rod 38, causing the first rotating gear 31 to move away from the sealing block 34. When the transmission rack 41 separates from the transmission gear 42, the return spring 39 presses the sealing block 34, causing the sealing block 34 to move on the guide rod 38 and reset, thus sealing the second rotating groove.

[0049] Example 4 Based on Example 3, referring to Figures 8-9 and Figures 11-12 This is the fourth embodiment of the present invention. In this invention, the filter box 9 is provided with an adjustment component for adjusting the position of the second rotating ring 32. The adjustment component includes an adjustment ring 45 coaxially connected to the second rotating ring 32, an adjustment toothed ring 46 disposed on the outer wall of the adjustment ring 45, and an adjustment gear 47 for controlling the rotation of the adjustment toothed ring 46. The adjustment toothed ring 46 and the adjustment gear 47 mesh with each other. The adjustment toothed ring 46 and the adjustment ring 45 are coaxially connected. The adjustment toothed ring 46 is configured as a toothed ring, and the adjustment ring 45 is provided with an opening.

[0050] In this embodiment, when the adjusting gear 47 rotates, it causes the adjusting gear ring 46 to rotate, which in turn causes the adjusting gear ring 46 to rotate the adjusting ring 45. The rotation of the adjusting ring 45 causes the second rotating ring 32 to rotate, thereby adjusting the position of the second rotating ring 32. This adjusts the position of the arc-shaped rack 44, thereby adjusting the meshing position of the first rotating gear 31 and the arc-shaped rack 44, and adjusting the striking position of the striking member 27.

[0051] The adjustment assembly of this invention also includes a third transmission rod 49 coaxially connected to the adjustment gear 47 and a third bevel gear structure 50 coaxially connected to the third transmission rod 49. A connecting rod 51 is coaxially mounted on the third bevel gear structure 50. A second explosion-proof motor 52 is installed on the outer wall of the filter box 9 to control the rotation of the connecting rod 51. The second explosion-proof motor 52 also limits the adjustment ring 45 through the adjustment gear 47 and the adjustment gear ring 46, so that the third bevel gear structure 50 controls the adjustment ring 45 to rotate through the third transmission rod 49, the adjustment gear 47 and the adjustment gear ring 46, thereby controlling the rotation of the second rotating ring 32 and adjusting the position of the arc rack 44 on the second rotating ring 32, thereby adjusting the striking position of the striking element 27.

[0052] In this embodiment, the second explosion-proof motor 52 is started, which drives the connecting rod 51 to rotate, so that the connecting rod 51 drives the third bevel gear structure 50 to rotate, the third bevel gear structure 50 drives the third transmission rod 49 to rotate, so that the third transmission rod 49 drives the adjusting gear 47 to rotate.

[0053] The adjustment component of the present invention also includes several limiting blocks 48 installed on the filter box 9. The side of the adjustment ring 45 away from the second rotating ring 32 is provided with a limiting groove that matches the limiting block 48. The limiting block 48 is movably disposed in the limiting groove to limit the rotation of the adjustment ring 45.

[0054] In this embodiment, when the adjusting ring 45 rotates, the limiting block 48 rotates in the limiting groove.

[0055] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.

Claims

1. An explosion-proof box-type transformer, characterized in that, include: An explosion-proof enclosure, wherein an explosion-proof inner shell is provided inside for installing the transformer body, and a heat dissipation duct is provided between the explosion-proof enclosure and the explosion-proof inner shell; Several first heat dissipation fins are arranged in parallel on the outer side of the explosion-proof inner shell and extend into the interior of the explosion-proof inner shell. A cooling box is provided with a filter box on one side and a filter box on the other side. One end of the outer side of the explosion-proof housing is provided with an air guide box that communicates with the filter box, and the other end of the outer side of the explosion-proof housing is provided with a negative pressure fan that draws external gas into the heat dissipation air duct. Antistatic filter core, which is located inside the filter box; An antistatic filter screen is fixed inside the filter box by mounting rings; A cooling structure is installed inside the cooling box and cools the gas filtered by the anti-static filter. The cooling structure guides the cooled gas through the filter box and the air guide box into the heat dissipation duct.

2. The explosion-proof box-type transformer according to claim 1, characterized in that, The cooling structure includes: A cooling ring channel is installed on the inner wall of the cooling box, and the cooling ring channel has a U-shaped structure; The second heat dissipation fin is arranged parallel to the inner wall of the cooling ring channel, and both ends of the second heat dissipation fin extend into the cooling ring channel. The cooling ring channel contains coolant; The bottom of the cooling tank is equipped with a refrigeration device for cooling the coolant.

3. The explosion-proof box-type transformer according to claim 1, characterized in that, A rotating block is provided on one side of the antistatic filter screen; The rotating block is equipped with several scrapers arranged in a circular array to clean the antistatic filter screen; A first rotating rod is perpendicularly and coaxially connected between adjacent rotating blocks; The filter box is equipped with a first bevel gear structure that is coaxially connected to the first rotating rod. The upper end of the filter box is equipped with a first explosion-proof motor; The first explosion-proof motor is equipped with a first bevel gear structure that controls the rotation of the first bevel gear structure.

4. The explosion-proof box-type transformer according to claim 3, characterized in that, The outer wall of the rotating block is provided with several connecting strips arranged in a circular array; The outer side of the rotating block is provided with a first rotating ring that is connected to several connecting strips; The connecting strip is evenly provided with a number of striking elements that strike the antistatic filter screen in an alternating manner; The head of the striking element is made of a flexible material; Both the scraper and the striking component are coated with an anti-stick coating. The outer wall of the connecting strip is fitted with several sealing rings that fit against the striking element.

5. The explosion-proof box-type transformer according to claim 4, characterized in that, The connecting bar uses a reciprocating screw drive structure with several control striking parts for horizontal movement. The reciprocating screw drive structure is coaxially connected to a second bevel gear structure at one end. A second rotating rod is rotatably mounted on the connecting bar to control the synchronous operation of several second bevel gear structures. One end of the second rotating rod passes through the first rotating ring and extends into the interior of the filter box; A first rotating gear is fixedly installed at one end of the second rotating rod; The filter box is equipped with a second rotating ring that is aligned with the first rotating gear. The second rotating ring is provided with several arc-shaped racks that mesh with the first rotating gear; When the connecting bar drives the first rotating ring to rotate, the second rotating rod drives the first rotating gear to rotate on the second rotating ring. The second rotating rod controls several striking parts to knock and clean the anti-static filter screen through a reciprocating screw transmission structure and a second bevel gear structure.

6. The explosion-proof box-type transformer according to claim 5, characterized in that, The filter box has several material feeding grooves on its lower inner side; A collection box communicating with the feeding groove is installed on the lower end face of the filter box; The filter box is provided with a second rotating groove that matches the first rotating gear and the second rotating ring. The filter box is equipped with a sealing component for sealing the second rotating groove at the material feeding groove.

7. The explosion-proof box-type transformer according to claim 6, characterized in that, The blocking assembly includes: The sealing block is movably mounted on the filter box and seals the second rotating groove; A guide strip is fixedly connected to one side of the sealing block, and a movable rack is provided on the inner side of the guide strip; A movable gear, whose rotation is mounted on the filter box and meshes with a movable rack; The filter box is equipped with several guide rods that are inserted into the sealing block; A reset spring connected to the sealing block is fitted on the guide rod.

8. The explosion-proof box-type transformer according to claim 7, characterized in that, The sealing assembly also includes: A fixing bar is vertically positioned outside the first rotating ring and is used in conjunction with the first rotating gear. A transmission rack is disposed on the lower part of the outer surface of the fixed rack; A transmission gear is rotatably mounted on the filter box and meshes with a transmission rack. The transmission gear is provided with a second transmission rod that is coaxially connected to the moving gear. When the fixed bar moves to the transmission gear, the transmission rack controls the moving gear and the moving rack to move the sealing block away.

9. An explosion-proof box-type transformer according to claim 6, characterized in that, An adjusting ring is coaxially provided on one side of the second rotating ring; The outer surface of the adjusting ring is provided with an adjusting toothed ring; The filter box is equipped with an adjusting gear that meshes with the adjusting gear ring; The adjusting toothed ring and the adjusting ring are coaxially connected; The filter box is equipped with several limiting blocks that slide and rotate with the adjusting ring; When the adjusting gear rotates, it causes the adjusting gear ring to adjust the position of the adjusting ring.

10. An explosion-proof box-type transformer according to claim 9, characterized in that, A third transmission rod is coaxially mounted on the adjusting gear; A third bevel gear structure is installed at one end of the third transmission rod; A connecting rod is coaxially mounted on the third bevel gear structure; The outer wall of the filter box is equipped with a second explosion-proof motor that controls the rotation of the connecting rod. When the second explosion-proof motor controls the adjustment gear to rotate via the connecting rod, the third bevel gear structure, and the third transmission rod, the adjustment gear and the adjustment ring cooperate to control the adjustment ring to rotate, adjusting the position of the arc-shaped rack on the second rotating ring and adjusting the striking position of the striking element.

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