CN112366585B - Explosion-proof device of inflatable switch cabinet - Google Patents
Explosion-proof device of inflatable switch cabinet Download PDFInfo
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- CN112366585B CN112366585B CN202011363446.2A CN202011363446A CN112366585B CN 112366585 B CN112366585 B CN 112366585B CN 202011363446 A CN202011363446 A CN 202011363446A CN 112366585 B CN112366585 B CN 112366585B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/045—Details of casing, e.g. gas tightness
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention belongs to the technical field of explosion prevention of switch cabinets, and particularly relates to an explosion-proof device of an inflatable switch cabinet, which aims at solving the problems that an explosion-proof barrel or an explosion-proof box is mostly arranged on a cabinet body in the prior explosion prevention of the cabinet body, a pressure release valve is arranged on the explosion-proof barrel, the pressure release mode of the pressure release valve is single, and the temperature is increased and the temperature cannot be reduced when the air pressure in the cabinet body is high. The invention has convenient operation and more pressure relief modes, can realize secondary pressure relief, and can cool the cabinet body when the secondary pressure relief is realized.
Description
Technical Field
The invention relates to the technical field of explosion prevention of switch cabinets, in particular to an explosion-proof device of an inflatable switch cabinet.
Background
The cubical switchboard is an electrical equipment, the cubical switchboard external line gets into main control switch in the cabinet earlier, then get into branch accuse switch, each is divided according to its needs setting, it seals at airtight gas tank to inflate the high tension switchgear, equipment is in operation if the inside electric arc flashover that lasts of switch appears, gas in the gas tank can sharp inflation, when gas pressure surpassed the intensity of gas tank, the gas tank will explode, can not injure operating personnel and damage other equipment when guaranteeing the gas tank explosion, need carry out explosion-proof design to the gas tank.
The explosion-proof case of setting up an explosion-proof section of thick bamboo or explosion-proof case on the cabinet body of the current cabinet body is explosion-proof many, sets up the relief valve on the explosion-proof section of thick bamboo, and the relief valve pressure release mode is single, and when the internal portion atmospheric pressure of cabinet was big, the temperature rose, can not lower the temperature.
Disclosure of Invention
The invention aims to solve the defects that the explosion-proof cabinet body is provided with an explosion-proof cylinder or an explosion-proof box, the explosion-proof cylinder is provided with a pressure release valve, the pressure release mode of the pressure release valve is single, and the temperature is increased and the temperature cannot be reduced when the internal air pressure of the cabinet body is high in the prior art, and provides an explosion-proof device of an inflatable switch cabinet.
In order to achieve the purpose, the invention adopts the following technical scheme:
an explosion-proof device of an inflatable switch cabinet comprises a cabinet body, wherein cooling boxes are fixedly connected on the inner walls of two sides of the cabinet body respectively, a same communicating pipe is communicated between the two cooling boxes, a liquid barrel is fixedly connected at the rear side of the cabinet body, a filter box is movably connected in the liquid barrel, a liquid pump is arranged in the liquid barrel, a same liquid inlet pipe is communicated between a water outlet of the liquid pump and one of the two cooling boxes, a backflow pipe is communicated between the other cooling box between the two cooling boxes and the liquid barrel, a semiconductor refrigerating sheet is embedded in the outer side of the liquid barrel, an explosion-proof barrel is fixedly connected at the top of the cabinet body, a same bent pipe is communicated between the explosion-proof barrel and the cabinet body, a primary air pressure plate is slidably installed in the explosion-proof barrel, a plurality of tension springs are communicated between the left side of the primary air pressure plate and the explosion-proof barrel, a primary exhaust hole is formed in the outer side of the explosion-proof barrel, a round hole is formed in the primary air pressure plate, the right side fixed mounting of one-level gas-pressure plate has the support column, slidable mounting has the elasticity pole on the support column, the end fixed mounting of elasticity pole has the second grade gas-pressure plate, the second grade exhaust hole has been seted up in the outside of explosion-proof section of thick bamboo, the right side fixed mounting of second grade gas-pressure plate has the push rod, push rod and explosion-proof section of thick bamboo sliding connection, the end of push rod is provided with insulating the pad, fixed mounting has the bridge conductor on the insulating pad, the right side fixed mounting of explosion-proof section of thick bamboo has the protective housing, be provided with two conducting blocks on the inner wall of protective housing, the right side fixedly connected with alarm of protective housing, the alarm, liquid pump and semiconductor refrigeration piece all are connected with two conducting blocks.
Preferably, fixed mounting has two dead levers on the left side inner wall of protective housing, and slidable mounting has same rubber slab on two dead levers, and the equal fixed mounting of two conducting blocks has been seted up on the rubber slab on the right side of rubber slab, two dead levers respectively with two fixed slot sliding connection, fixed mounting has same buffering spring between dead lever and the fixed slot.
Preferably, the right side of the supporting column is provided with an elastic groove, the elastic rod is connected with the elastic groove in a sliding mode, and the same pressure spring is fixedly installed between the elastic rod and the elastic groove.
Preferably, there are two slide bars on the one-level gas-pressure plate slidable mounting, and equal fixed mounting has same jam plate on two slide bars, jam plate and round hole looks adaptation.
Preferably, the slide bar is of a T-shaped structure, a sleeve spring is sleeved on the outer side of the slide bar, one end of the sleeve spring is fixedly installed with the slide bar, and the other end of the sleeve spring is fixedly installed with the primary pressure plate.
Preferably, an extrusion rod is fixedly mounted on the inner wall of the explosion-proof cylinder and is matched with the blocking plate.
Preferably, a filter box is arranged in the liquid barrel in a sliding mode, a sealing ring is sleeved on the outer side of the filter box and is in sliding connection with the inner wall of the liquid barrel, and a plurality of filter holes are formed in the inner wall of the bottom of the filter box.
Preferably, the top of the liquid cylinder is fixedly provided with an external thread pipe, the outer side of the external thread pipe is in threaded connection with a thread cover, the inner wall of the top of the thread cover is fixedly provided with a round rod, and the round rod is fixedly arranged with the filter box.
Compared with the prior art, the invention has the advantages that:
(1) when the air pressure in the cabinet body is increased, the air pressure enters the explosion-proof cylinder through the bent pipe, the air pressure extrudes the primary air pressure plate to move to the right side of the primary air exhaust hole, so that the air is exhausted through the primary air exhaust hole, the internal air pressure of the cabinet body can be reduced, if the air pressure in the cabinet body is too high, the primary air pressure plate cannot completely exhaust the air pressure in the cabinet body, the primary air pressure plate continuously moves rightwards, the extrusion rod extrudes the plugging plate, the plugging plate leaves the round hole, so that the air enters between the primary air pressure plate and the secondary air pressure plate through the round hole, the air extrudes the secondary air pressure plate, the secondary air pressure plate is extruded to move rightwards, the air is exhausted through the secondary air exhaust hole, secondary emission can be performed, and the exhaust effect of the cabinet body can be improved;
(2) the secondary air pressure plate pushes the bridge conductor to move rightwards through the push rod, the bridge conductor is in contact with the two conductive blocks, the two conductive blocks are connected with a power supply of the alarm, the liquid pump and the semiconductor refrigerating sheet, the air pressure in the cabinet body is too high due to the fact that the air pressure in the cabinet body is too high, the air pressure in the cabinet body needs to be reduced, meanwhile, the temperature in the cabinet body needs to be reduced, the semiconductor refrigerating sheet cools the cooling liquid, the liquid pump sends the cooling liquid into the two cooling boxes through the liquid inlet pipe, and the temperature in the cabinet body can be reduced through the two cooling boxes;
(3) the back flow can be with the reintroduction liquid section of thick bamboo reuse of coolant liquid, rotates the screw cap, with screw cap and external screw thread pipe separation, upwards pulls the screw cap, can dismantle the filter cartridge.
The invention has convenient operation and more pressure relief modes, can realize secondary pressure relief, and can cool the cabinet body when the secondary pressure relief is realized.
Drawings
Fig. 1 is a schematic structural diagram of an explosion-proof device of an inflatable switch cabinet according to the present invention;
FIG. 2 is a schematic side view of an explosion-proof device of an inflatable switch cabinet according to the present invention;
FIG. 3 is a schematic structural view of part A of an explosion-proof device of an inflatable switch cabinet according to the present invention;
FIG. 4 is a schematic structural diagram of part B of an explosion-proof device of an inflatable switch cabinet according to the present invention;
FIG. 5 is a schematic structural view of part C of an explosion-proof device of an inflatable switch cabinet according to the present invention;
fig. 6 is a schematic structural diagram of a filter cartridge of an explosion-proof device of an inflatable switch cabinet according to the present invention.
In the figure: 1. a cabinet body; 2. a cooling box; 3. a liquid inlet pipe; 4. a communicating pipe; 5. bending the pipe; 6. an explosion-proof cylinder; 7. a primary gas pressure plate; 8. a tension spring; 9. a primary vent hole; 10. a circular hole; 11. a blocking plate; 12. a slide bar; 13. a spring sleeve; 14. an extrusion stem; 15. a support column; 16. a pressure spring; 17. an elastic rod; 18. a secondary air pressure plate; 19. a secondary exhaust hole; 20. a protective shell; 21. an alarm; 22. a fixing rod; 23. a buffer spring; 24. a rubber plate; 25. a conductive block; 26. a bridge conductor; 27. an insulating pad; 28. a push rod; 29. a liquid pump; 30. a semiconductor refrigeration sheet; 31. a liquid cartridge; 32. a threaded cap; 33. a round bar; 34. a filter cartridge; 35. an externally threaded tube; 36. a return pipe; 37. a filtration pore; 38. and (5) sealing rings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1-6, an explosion-proof device of an inflatable switch cabinet comprises a cabinet body 1, wherein cooling boxes 2 are fixedly connected on the inner walls of two sides of the cabinet body 1 through screws, the same communicating pipe 4 is communicated between the two cooling boxes 2, a liquid barrel 31 is fixedly connected on the rear side of the cabinet body 1 through screws, a filter box 34 is movably connected in the liquid barrel 31, a liquid pump 29 is arranged in the liquid barrel 31, the same liquid inlet pipe 3 is communicated between the water outlet of the liquid pump 29 and one cooling box 2 of the two cooling boxes 2, a return pipe 36 is communicated between the other cooling box 2 of the two cooling boxes 2 and the liquid barrel 31, a semiconductor refrigerating sheet 30 is embedded in the outer side of the liquid barrel 31, an explosion-proof barrel 6 is fixedly connected on the top of the cabinet body 1 through screws, the same elbow pipe 5 is communicated between the explosion-proof barrel 6 and the cabinet body 1, and a first-level air pressure plate 7 is slidably installed in the explosion-proof barrel 6, a plurality of tension springs 8 are communicated between the left side of the primary air pressure plate 7 and the explosion-proof cylinder 6, a primary vent hole 9 is formed in the outer side of the explosion-proof cylinder 6, a round hole 10 is formed in the primary air pressure plate 7, a support column 15 is fixedly installed on the right side of the primary air pressure plate 7 through welding, an elastic rod 17 is slidably installed on the support column 15, a secondary air pressure plate 18 is fixedly installed at the end of the elastic rod 17 through welding, a secondary vent hole 19 is formed in the outer side of the explosion-proof cylinder 6, a push rod 28 is fixedly installed on the right side of the secondary air pressure plate 18 through welding, the push rod 28 is slidably connected with the explosion-proof cylinder 6, an insulating pad 27 is arranged at the end of the push rod 28, a bridge conductor 26 is fixedly installed on the insulating pad 27 through welding, a protective shell 20 is fixedly installed on the right side of the explosion-proof cylinder 6 through welding, two conductive blocks 25 are arranged on the inner wall of the protective shell 20, and an alarm 21 is fixedly connected to the right side of the protective shell 20 through screws, the alarm 21, the liquid pump 29 and the semiconductor refrigerating sheet 30 are all connected with the two conductive blocks 25.
In this embodiment, there are two dead levers 22 through welded fastening installation on the left side inner wall of protective housing 20, and slidable mounting has same rubber slab 24 on two dead levers 22, and two conducting blocks 25 all install on rubber slab 24 through welded fastening, and two fixed slots have been seted up on the right side of rubber slab 24, and two dead levers 22 respectively with two fixed slot sliding connection, there is same buffering spring 23 through welded fastening installation between dead lever 22 and the fixed slot.
In this embodiment, an elastic groove is formed in the right side of the supporting column 15, the elastic rod 17 is connected with the elastic groove in a sliding manner, and the same pressure spring 16 is fixedly installed between the elastic rod 17 and the elastic groove through welding.
In this embodiment, two sliding rods 12 are slidably mounted on the primary pressure plate 7, the same plugging plate 11 is fixedly mounted on the two sliding rods 12 by welding, and the plugging plate 11 is matched with the circular hole 10.
In this embodiment, the sliding rod 12 is a T-shaped structure, a wrap spring 13 is sleeved outside the sliding rod 12, one end of the wrap spring 13 is fixedly installed with the sliding rod 12 by welding, and the other end of the wrap spring 13 is fixedly installed with the primary pressure plate 7 by welding.
In this embodiment, the inner wall of the explosion-proof cylinder 6 is fixedly provided with an extrusion rod 14 by welding, and the extrusion rod 14 is matched with the plugging plate 11.
In this embodiment, the liquid barrel 31 is slidably provided with the filter box 34, the outer side of the filter box 34 is sleeved with the sealing ring 38, the sealing ring 38 is slidably connected with the inner wall of the liquid barrel 31, and the inner wall of the bottom of the filter box 34 is provided with a plurality of filter holes 37.
In this embodiment, an external thread pipe 35 is fixedly welded to the top of the liquid cartridge 31, a screw cap 32 is screwed to the outer side of the external thread pipe 35, a round rod 33 is fixedly welded to the inner wall of the top of the screw cap 32, and the round rod 33 and the filter box 34 are fixedly welded to each other.
Example two
Referring to fig. 1-6, an explosion-proof device of an inflatable switch cabinet comprises a cabinet body 1, wherein cooling boxes 2 are fixedly connected on the inner walls of two sides of the cabinet body 1, the same communicating pipe 4 is communicated between the two cooling boxes 2, a liquid barrel 31 is fixedly connected on the rear side of the cabinet body 1, a filter box 34 is movably connected in the liquid barrel 31, a liquid pump 29 is arranged in the liquid barrel 31, the same liquid inlet pipe 3 is communicated between the water outlet of the liquid pump 29 and one cooling box 2 of the two cooling boxes 2, the liquid pump 29 can send cooling liquid in the liquid barrel 31 into the cooling boxes 2, a return pipe 36 is communicated between the other cooling box 2 of the two cooling boxes 2 and the liquid barrel 31, a semiconductor refrigerating sheet 30 is embedded in the outer side of the liquid barrel 31, an explosion-proof barrel 6 is fixedly connected on the top of the cabinet body 1, the same elbow pipe 5 is communicated between the explosion-proof barrel 6 and the cabinet body 1, a first-stage air pressure plate 7 is slidably installed in the explosion-proof barrel 6, a plurality of tension springs 8 are communicated between the left side of the primary air pressure plate 7 and the explosion-proof cylinder 6, a primary exhaust hole 9 is formed in the outer side of the explosion-proof cylinder 6, a round hole 10 is formed in the primary air pressure plate 7, a support column 15 is fixedly installed on the right side of the primary air pressure plate 7, an elastic rod 17 is slidably installed on the support column 15, a secondary air pressure plate 18 is fixedly installed at the end head of the elastic rod 17, a secondary exhaust hole 19 is formed in the outer side of the explosion-proof cylinder 6, a push rod 28 is fixedly installed on the right side of the secondary air pressure plate 18, the push rod 28 is slidably connected with the explosion-proof cylinder 6, an insulating pad 27 is arranged at the end head of the push rod 28, a bridge type conductor 26 is fixedly installed on the insulating pad 27, a protective shell 20 is fixedly installed on the right side of the explosion-proof cylinder 6, two conductive blocks 25 are arranged on the inner wall of the protective shell 20, an alarm 21 is fixedly connected to the right side of the protective shell 20, the alarm 21 can play an alarm role, the alarm 21, The liquid pump 29 and the semiconductor refrigerating sheet 30 are both connected with the two conductive blocks 25.
In this embodiment, fixed mounting has two dead levers 22 on the left side inner wall of protective housing 20, and slidable mounting has same rubber slab 24 on two dead levers 22, and two equal fixed mounting of conducting block 25 are on rubber slab 24, and two fixed slots have been seted up on the right side of rubber slab 24, and two dead levers 22 respectively with two fixed slot sliding connection, fixed mounting has same buffering spring 23 between dead lever 22 and the fixed slot, and the buffering spring 23 of setting can be so that bridge conductor 26 and conducting block 25 in close contact with.
In this embodiment, an elastic groove is formed in the right side of the supporting column 15, the elastic rod 17 is slidably connected with the elastic groove, the same pressure spring 16 is fixedly installed between the elastic rod 17 and the elastic groove, and the pressure spring 16 can provide reset elasticity for the elastic rod 17.
In this embodiment, two sliding rods 12 are slidably mounted on the primary pressure plate 7, the same plugging plate 11 is fixedly mounted on each of the two sliding rods 12, and the plugging plate 11 is matched with the circular hole 10.
In this embodiment, the sliding rod 12 is a T-shaped structure, the sleeve spring 13 is sleeved outside the sliding rod 12, one end of the sleeve spring 13 is fixedly mounted with the sliding rod 12, the other end of the sleeve spring 13 is fixedly mounted with the primary pressure plate 7, the sleeve spring 13 is sleeved on the sliding rod 12, and the sleeve spring 13 can provide elasticity for the plugging plate 11, so that the plugging plate 11 can plug the circular hole 10.
In this embodiment, the inner wall of the explosion-proof cylinder 6 is fixedly provided with the extrusion rod 14, the extrusion rod 14 is matched with the plugging plate 11, and the extrusion rod 14 can abut against the plugging plate 11.
In this embodiment, a filter box 34 is slidably mounted in the liquid barrel 31, a sealing ring 38 is sleeved on the outer side of the filter box 34, the sealing ring 38 is slidably connected with the inner wall of the liquid barrel 31, a plurality of filter holes 37 are formed in the inner wall of the bottom of the filter box 34, and the coolant can be filtered through the filter holes 37.
In this embodiment, an external threaded pipe 35 is fixedly installed on the top of the liquid cartridge 31, a threaded cap 32 is screwed on the outer side of the external threaded pipe 35, a round rod 33 is fixedly installed on the inner wall of the top of the threaded cap 32, the round rod 33 is fixedly installed with the filter box 34, and the filter box 34 can be conveniently detached by screwing the external threaded pipe 35 and the threaded cap 32.
In this embodiment, the electrical equipment is powered on, the threaded cover 32 is rotated to separate the threaded cover 32 from the external threaded pipe 35, the threaded cover 32 is pulled upwards to open the liquid cylinder 31, the cooling liquid is added into the liquid cylinder 31 and is filtered through the filtering hole 37 on the filtering box 34, when the internal air pressure of the set cabinet body 1 increases, the air pressure enters the explosion-proof cylinder 6 through the elbow pipe 5, the air pressure extrudes the primary air pressure plate 7 to move, the primary air pressure plate 7 moves to the right side of the primary vent hole 9, so that the air is exhausted through the primary vent hole 9, the internal air pressure of the cabinet body 1 can be reduced, if the internal air pressure of the cabinet body 1 is too high, the primary vent hole 9 cannot completely exhaust the air pressure inside the cabinet body 1, the primary air pressure plate 7 continues to move rightwards, the extrusion rod 14 extrudes the blocking plate 11, the blocking plate 11 leaves the circular hole 10, so that the air enters between the primary air pressure plate 7 and the secondary air pressure plate 18 through the circular hole 10, the gas extrudes the secondary air pressure plate 18, the secondary air pressure plate 18 is extruded to move rightwards, the secondary air pressure plate 18 pushes the bridge conductor 26 to move rightwards through the push rod 28, the bridge conductor 26 is contacted with the two conducting blocks 25, the two conducting blocks 25 are connected with the alarm 21, the liquid pump 29 and the power supply of the semiconductor refrigerating sheet 30, the temperature inside the cabinet body 1 is overhigh due to the overlarge air pressure inside the cabinet body 1, the air pressure inside the cabinet body 1 needs to be reduced, the temperature inside the cabinet body 1 needs to be reduced simultaneously, the semiconductor refrigerating sheet 30 cools the cooling liquid, the liquid pump 29 sends the cooling liquid into the two cooling boxes 2 through the liquid inlet pipe 3, the temperature inside the cabinet body 1 can be reduced through the two cooling boxes 2, the cabinet body 1 after pressure reduction and temperature reduction keeps a normal state, and the primary air pressure plate 7 and the secondary air pressure plate 18 are enabled to be restored to an initial state under the elastic force of the tension spring 8 and the pressure spring 16, the use can be continued.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (8)
1. An explosion-proof device of an inflation switch cabinet comprises a cabinet body (1) and is characterized in that cooling boxes (2) are fixedly connected to the inner walls of the two sides of the cabinet body (1), a same communicating pipe (4) is communicated between the two cooling boxes (2), a liquid barrel (31) is fixedly connected to the rear side of the cabinet body (1), a filter box (34) is movably connected in the liquid barrel (31), a liquid pump (29) is arranged in the liquid barrel (31), a same liquid inlet pipe (3) is communicated between the water outlet of the liquid pump (29) and one cooling box (2) of the two cooling boxes (2), a return pipe (36) is communicated between the other cooling box (2) of the two cooling boxes (2) and the liquid barrel (31), a semiconductor refrigerating sheet (30) is embedded in the outer side of the liquid barrel (31), an explosion-proof barrel (6) is fixedly connected to the top of the cabinet body (1), the explosion-proof cabinet is characterized in that a same bent pipe (5) is communicated between an explosion-proof cylinder (6) and a cabinet body (1), a primary air pressure plate (7) is arranged in the explosion-proof cylinder (6) in a sliding mode, a plurality of tension springs (8) are communicated between the left side of the primary air pressure plate (7) and the explosion-proof cylinder (6), a primary exhaust hole (9) is formed in the outer side of the explosion-proof cylinder (6), a round hole (10) is formed in the primary air pressure plate (7), a support column (15) is fixedly arranged on the right side of the primary air pressure plate (7), an elastic rod (17) is slidably arranged on the support column (15), a secondary air pressure plate (18) is fixedly arranged at the end of the elastic rod (17), a secondary exhaust hole (19) is formed in the outer side of the explosion-proof cylinder (6), a push rod (28) is fixedly arranged on the right side of the secondary air pressure plate (18), the push rod (28) is slidably connected with the explosion-proof cylinder (6), and an insulating pad (27) is arranged at the end of the push rod (28), the insulation pad (27) is fixedly provided with a bridge conductor (26), the right side of the explosion-proof cylinder (6) is fixedly provided with a protective shell (20), the inner wall of the protective shell (20) is provided with two conductive blocks (25), the right side of the protective shell (20) is fixedly connected with an alarm (21), and the alarm (21), the liquid pump (29) and the semiconductor refrigerating sheet (30) are all connected with the two conductive blocks (25).
2. The explosion-proof device of an inflatable switch cabinet as claimed in claim 1, wherein two fixing rods (22) are fixedly installed on the inner wall of the left side of the protective shell (20), the same rubber plate (24) is installed on the two fixing rods (22) in a sliding manner, the two conductive blocks (25) are both fixedly installed on the rubber plate (24), two fixing grooves are opened on the right side of the rubber plate (24), the two fixing rods (22) are respectively connected with the two fixing grooves in a sliding manner, and the same buffer spring (23) is fixedly installed between the fixing rods (22) and the fixing grooves.
3. The explosion-proof device of the gas-filled switch cabinet according to claim 1, characterized in that the right side of the supporting column (15) is provided with an elastic groove, the elastic rod (17) is connected with the elastic groove in a sliding way, and the same pressure spring (16) is fixedly arranged between the elastic rod (17) and the elastic groove.
4. An explosion protection device for an inflatable switch cabinet according to claim 1, wherein two sliding rods (12) are slidably mounted on the primary pressure plate (7), the same blocking plate (11) is fixedly mounted on both the two sliding rods (12), and the blocking plate (11) is adapted to the circular hole (10).
5. An explosion-proof device for a gas-filled switch cabinet according to claim 4, characterized in that the sliding rod (12) is of a T-shaped structure, a casing spring (13) is sleeved outside the sliding rod (12), one end of the casing spring (13) is fixedly installed with the sliding rod (12), and the other end of the casing spring (13) is fixedly installed with the primary gas pressure plate (7).
6. An explosion-proof device for a gas-filled switch cabinet according to claim 1, characterized in that a squeeze rod (14) is fixedly mounted on the inner wall of the explosion-proof cylinder (6), and the squeeze rod (14) is adapted to the blocking plate (11).
7. An explosion-proof device for an inflatable switch cabinet according to claim 1, wherein a filter box (34) is slidably installed in the liquid cylinder (31), a sealing ring (38) is sleeved outside the filter box (34), the sealing ring (38) is slidably connected with the inner wall of the liquid cylinder (31), and a plurality of filter holes (37) are formed in the inner wall of the bottom of the filter box (34).
8. The explosion-proof device of the gas-filled switch cabinet according to claim 7, wherein the top of the liquid cylinder (31) is fixedly provided with an external thread pipe (35), the outer side of the external thread pipe (35) is in threaded connection with a thread cover (32), the top inner wall of the thread cover (32) is fixedly provided with a round rod (33), and the round rod (33) is fixedly arranged with the filter box (34).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011363446.2A CN112366585B (en) | 2020-11-28 | 2020-11-28 | Explosion-proof device of inflatable switch cabinet |
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| CN202011363446.2A CN112366585B (en) | 2020-11-28 | 2020-11-28 | Explosion-proof device of inflatable switch cabinet |
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| CN112366585A CN112366585A (en) | 2021-02-12 |
| CN112366585B true CN112366585B (en) | 2022-06-14 |
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| CN114204440A (en) * | 2021-12-08 | 2022-03-18 | 二工防爆科技股份有限公司 | Explosion-proof power distribution cabinet |
| CN114694511B (en) * | 2022-04-14 | 2023-07-25 | 海南搜了科技股份有限公司 | Electric commercial information interaction system capable of being promoted rapidly |
| CN114784693B (en) * | 2022-06-22 | 2022-09-02 | 南通讯科电气股份有限公司 | Air supplement device of electrical control cabinet |
| CN116092779B (en) * | 2023-04-11 | 2023-06-06 | 保定中亿电气集团有限公司 | Oil immersed transformer and explosion-proof protection structure |
| CN117039686B (en) * | 2023-08-11 | 2024-03-22 | 浙江铖元电气科技有限公司 | Outdoor preassembled transformer substation |
| CN117080915B (en) * | 2023-10-13 | 2023-12-22 | 江苏德纪特电气有限公司 | Cubical switchboard pressure relief device and cubical switchboard |
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|---|---|---|---|---|
| CN109687310A (en) * | 2019-03-06 | 2019-04-26 | 国网山东省电力公司沂源县供电公司 | A kind of power high voltage switchgear classification pressure relief mechanism |
| CN110461120A (en) * | 2019-07-03 | 2019-11-15 | 二工防爆科技股份有限公司 | A kind of positive-pressure explosion-proof control cabinet |
| CN110529638A (en) * | 2019-08-20 | 2019-12-03 | 王美娟 | A kind of two-stage pressure release direct-acting overflow valve |
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