CN113274666A

CN113274666A - Fire extinguishing device for transformer

Info

Publication number: CN113274666A
Application number: CN202110471351.0A
Authority: CN
Inventors: 向群; 赵安安; 王秋杰; 刘伟; 张繁; 王波; 罗立荣; 王飞
Original assignee: Hubei Edian Deli Electrical Co ltd
Current assignee: Hubei Edian Deli Electrical Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-08-20

Abstract

The invention discloses a fire extinguishing device for a transformer, wherein universal wheels and travelling wheels are arranged at the bottom of a frame, a square tube is fixedly arranged on the frame, a support leg is movably inserted in the square tube, a telescopic mechanism is arranged between the square tube and the support leg, a grounding rod is movably arranged at the lower part of the support leg, a spiral rib plate is arranged on the grounding rod, a second motor is fixedly arranged in the support leg and is in transmission connection with the grounding rod, a guide hole is formed in the support leg, a metal rod is arranged on a conductive pressing block, the metal rod is movably inserted in the guide hole, a spring is sleeved on the metal rod, two end parts of the spring are respectively abutted against the conductive pressing block and the support leg, the conductive pressing block is abutted against the grounding rod, a wiring terminal is fixedly arranged on the support leg and is electrically connected with the metal rod through a flexible wire, and the fire extinguishing device has the advantages that: the fire is sealed in the paired enclosers, so that the fire is prevented from spreading to facilities such as a power distribution cabinet and the like around the transformer, the supply of oxygen is effectively reduced, and the fire extinguishing of the transformer is very facilitated.

Description

Fire extinguishing device for transformer

Technical Field

The invention relates to the technical field of electric appliances, in particular to the technical field of transformer fire extinguishing equipment in a distribution area.

Background

As shown in fig. 18 and 19, a conventional outdoor distribution substation mainly includes a transformer 400, a distribution cabinet 404, a transformer switch 401, a high-voltage side outgoing line 403, a low-voltage side outgoing line, two concrete poles 406, and the like, the two concrete poles 406 are fixedly embedded in a ground 407, the transformer 400 and the distribution cabinet 404 are fixedly mounted on the two concrete poles 406 through a framework 402, the transformer switch 401 is fixedly mounted on the two concrete poles 406 through a cross arm 408 and is located above the transformer 400, and the transformer 400 is electrically connected to the transformer switch 401 through the high-voltage side outgoing line 403 and is electrically connected to the distribution cabinet 404 through the low-voltage side outgoing line. At present, the outdoor distribution area is occasionally on fire, the fire of the outdoor distribution area is mainly caused by the transformer 400, and the transformer 400 is generally put out a fire on the ground or on a concrete pole 406 by manpower aiming at the fire extinguishing of the outdoor distribution area transformer 400, however, by adopting the fire extinguishing mode, the fire extinguishing effect is not ideal, and the fire is easy to spread to the distribution cabinet 404 or other facilities around the transformer 400. In addition, a large amount of smoke is generated when the transformer 400 catches fire, thereby causing a great pollution to the environment.

Disclosure of Invention

The present invention aims to solve the above-mentioned disadvantages and provide a fire extinguishing apparatus for transformer, which can effectively reduce the potential safety hazard, effectively improve the fire extinguishing effect, prevent the fire from spreading, and reduce the environmental pollution caused by fire.

The technical solution adopted by the present invention to solve the above technical problems is as follows:

the transformer fire extinguishing device comprises a frame, a bedplate, a pair of housing, a pair of transverse moving mechanism, a pair of induced draft fan, a pair of suspension type dry powder fire extinguisher, a universal wheel, a walking wheel, a smoke dust purification mechanism, a support grounding mechanism and a scissor lifting mechanism, wherein the universal wheel and the walking wheel are arranged at the bottom of the frame, the support grounding mechanism comprises a support leg, a square tube, a take-up and pay-off mechanism, a grounding rod, a second motor, a spring, a conductive pressing block and a wiring terminal, the square tube is fixedly arranged on the frame, the support leg is movably inserted in the square tube, a telescopic mechanism is arranged between the square tube and the support leg, the grounding rod is movably arranged at the lower part of the support leg, the grounding rod is provided with a spiral rib plate, the second motor is fixedly arranged in the support leg and is in transmission connection with the grounding rod, a guide hole is arranged in the support leg, and a metal rod is arranged on the conductive pressing block, the metal rod is movably inserted in the guide hole, the spring is sleeved on the metal rod, two end parts of the spring are respectively abutted against the conductive pressing block and the supporting leg, the conductive pressing block is pressed on the grounding rod, the wiring terminal is fixedly arranged on the supporting leg and is electrically connected with the metal rod through a flexible wire, the take-up and pay-off mechanism comprises a frame, a main shaft, a wire spool, a grounding wire, an insulating cylinder, an insulating seat, an annular conductive sheet, a conductive plate and a third motor, the frame is fixedly arranged on a square tube, the main shaft is movably arranged on the frame, the third motor is fixedly arranged on the frame and is in transmission connection with the main shaft, the wire spool is fixedly arranged on the main shaft, an opening is formed in the front part of the wire spool, the insulating cylinder is fixedly arranged on the frame and penetrates into the wire spool from the opening, an insulating cylinder is arranged in the wire spool, the annular conductive sheet is fixedly sleeved on the outer side of the insulating cylinder, and the insulating seat is fixedly arranged in the insulating cylinder, the conducting plate is fixedly arranged on the insulating base, a splayed conducting pressing sheet is arranged on the conducting plate, the conducting pressing sheet is pressed on the outer side of the annular conducting plate, the conducting plate is electrically connected with the square tube through a conductor, the grounding wire is wound on the wire spool, one end part of the grounding wire penetrates inside the wire spool and is fixedly penetrated in the insulating column, the end part of the grounding wire is electrically connected with the annular conducting plate, the other end part of the grounding wire is electrically connected with the wiring terminal, the smoke dust purification mechanism comprises a bracket, a first liquid storage tank, a second liquid storage tank, a smoke inlet pipe, a first drying mechanism, a second drying mechanism, an inner shell and an outer shell, the bracket is fixedly arranged at the bottom of the frame, the first liquid storage tank and the second liquid storage tank are fixedly arranged on the bracket, acidic urea solution is stored in the first liquid storage tank, alkali solution is stored in the second liquid storage tank, and, the lower end part of the smoke inlet pipe is fixedly arranged in a first liquid storage tank in a penetrating way and is immersed in the acidic urea solution, the first drying mechanism and the second drying mechanism respectively comprise a drying chamber and a shell, the shell is fixedly arranged in the drying chamber, activated alumina is filled in the shell, air holes are arranged on two side walls of the shell, a liquid outlet is arranged on the bottom wall of the shell, a liquid return port corresponding to the liquid outlet is arranged on the bottom wall of the drying chamber, the front part of the drying chamber of the first drying mechanism is communicated with the inside of the first liquid storage tank through a first air pipe, the liquid return port of the drying chamber of the first drying mechanism is communicated with the inside of the first liquid storage tank through a first liquid return pipe, an air outlet pipe is arranged at the rear part of the drying chamber of the first drying mechanism, the air outlet pipe is arranged in a penetrating way in the second liquid storage tank and is immersed in the alkali liquor, the front part of the drying chamber of the second drying mechanism is communicated with the inside of the second liquid storage tank through a second air pipe, the liquid return port of the second drying mechanism drying bin is communicated with the inside of a second liquid storage tank through a second liquid return pipe, the rear part of the second drying mechanism drying bin is provided with an exhaust pipe, an inner shell is fixedly sleeved outside the exhaust pipe to form an annular cavity between the inner shell and the exhaust pipe, activated carbon is filled in the annular cavity, a first air hole is formed in the exhaust pipe on the inner peripheral wall of the annular cavity, a second air hole is formed in the inner shell on the outer peripheral wall of the annular cavity, an outer shell is fixedly installed on the exhaust pipe and sleeved outside the inner shell, a tail discharge port is formed in the outer shell, the scissor lifting mechanism is movably installed on the frame through a rotating mechanism, the bedplate is fixedly installed on the scissor lifting mechanism, the paired transverse moving mechanisms respectively comprise a transverse moving seat, a first screw rod and a sixth motor, a guide rail is arranged on the transverse moving seat, and a chute and a second screw hole are formed in the transverse moving seat, the transverse moving seat is movably clamped on the guide rail through a sliding chute, a convex seat is arranged on the bedplate, a first screw rod is movably arranged on the convex seat, and is arranged in a second screw hole of the transverse moving seat in a rotating way, a sixth motor is fixedly arranged on the convex seat and is in transmission connection with the first screw rod, the paired housings are respectively and fixedly arranged on the transverse moving seats of the paired transverse moving mechanisms, avoidance grooves are respectively arranged on the front wall and the rear wall of the paired housings, a wire groove is arranged on the top wall of one housing, the paired suspension type dry powder fire extinguishers are respectively and fixedly arranged on the inner top walls of the paired housings, the paired induced draft fans are respectively and fixedly arranged on the outer side walls of the paired housings, the side walls of the paired housing shells are respectively provided with a smoke suction port, the air inlets of the paired induced draft fans are communicated with the smoke suction ports through pipelines, and the air outlets of the paired induced draft fans are respectively communicated with the upper end parts of the smoke inlet pipes of the smoke purification mechanism through corrugated pipes.

The telescopic mechanism comprises a vertical screw rod, a screw sleeve, a first worm and a first motor, wherein a vertical hole is formed in the supporting leg, an accommodating groove is formed in the vertical hole in the supporting leg, the vertical screw rod is positioned in the square tube and the supporting leg and penetrates through the vertical hole of the supporting leg, the upper end part of the vertical screw rod is fixedly connected with the square tube, a first worm wheel is arranged on the screw sleeve, a first screw hole is formed in the screw sleeve, the screw sleeve is movably arranged in the vertical hole in a penetrating manner and is rotatably sleeved outside the vertical screw rod through the first screw hole, the first worm wheel on the screw sleeve is movably clamped in the accommodating groove through a pair of first thrust bearings, a shaft sleeve is arranged on the supporting leg, the first worm is movably arranged in the accommodating groove of the supporting leg and is meshed with the first worm wheel, the first motor is fixedly arranged on the shaft sleeve, one end part of the first worm penetrates out of the shaft sleeve and is in transmission connection with the first motor through a first coupling, the square tube is provided with a vertical groove corresponding to the shaft sleeve.

The rotary mechanism comprises a bearing seat, a rotary table and a fourth motor, the bearing seat is fixedly arranged on the frame, the rotary table is movably arranged in the bearing seat through a second thrust bearing and a second radial bearing, a gear ring is arranged on the rotary table, the fourth motor is fixedly arranged on the frame, an output shaft of the fourth motor is provided with a gear, the gear is meshed with the gear ring of the rotary table, the scissor lifting mechanism comprises a scissor bracket, an adjusting screw, a lower frame seat, an upper frame seat and a fifth motor, the lower frame seat is fixedly arranged on the rotary table, the scissor bracket is composed of folding plates, the folding plates are arranged in a crossed manner, the middle parts of the folding plates are hinged through first pins, the end parts of the folding plates are respectively hinged through second pins and third pins, the scissor bracket is respectively hinged with the lower frame seat and the upper frame seat through fifth pins, and the lower frame seat and the upper frame seat are respectively provided with a limiting groove, the fork shearing frame is movably clamped in the limiting grooves of the lower frame seat and the upper frame seat through a fourth pin, pulleys are respectively arranged on the fourth pin, the pulleys are respectively contacted with the inner bottom wall of the lower frame seat and the inner top wall of the upper frame seat, a shaft hole is formed in the second pin, an adjusting screw hole is formed in the third pin, an adjusting screw is movably arranged in the shaft hole in a penetrating mode through a second bearing and is in threaded connection with the adjusting screw hole of the third pin, a fifth motor is fixedly arranged on the second pin and is in transmission connection with the adjusting screw through a fifth coupler, and the bedplate is fixedly arranged on the upper frame seat.

The ground rod is movably mounted on the lower portion of the supporting leg through paired first bearings, the second motor is in transmission connection with the ground rod through a second coupler, the main shaft is movably mounted on the frame through paired fourth bearings, the third motor is in transmission connection with the main shaft through a third coupler, the sixth motor is in transmission connection with the first lead screw through a sixth coupler, and the seventh motor is in transmission connection with the second lead screw through a seventh coupler.

The invention adopts the technical proposal to achieve the following beneficial effects:

1. the bedplate can be lifted by the scissor lifting mechanism, the angle of the bedplate is finely adjusted by the rotating mechanism, the paired housings are positioned at the front side and the rear side of the transformer, the avoidance grooves on the housings are aligned with a framework below the transformer, then the first screw rod is driven to rotate by the sixth motor of the transverse moving mechanism, the transverse moving seat is driven to move along the guide rail by the first screw rod, the paired housings move oppositely and are covered outside the transformer in a closed manner, after the paired housings are closed, the fire is sealed in the paired housings, the temperature sensing glass tubes on the paired suspension type dry powder extinguishers are broken by the high temperature in the housings, the suspension type dry powder extinguishers are triggered to spray extinguishing agents to extinguish the transformer, the fire is sealed in the paired housings, the fire is prevented from spreading to facilities such as power distribution cabinets and the like around the transformer, and the supply of oxygen is effectively reduced, is very beneficial to the fire extinguishing of the transformer.

2. Smoke and dust in the mated housing is sucked through the mated draught fan while extinguishing a fire, the smoke and dust is made to pass through a pipeline, the corrugated pipe and the smoke inlet pipe are led into an acid urea solution of the first liquid storage tank, nitrogen oxides in the smoke and dust are absorbed, then the smoke and dust pass through active aluminum oxide of the first drying mechanism, and the smoke and dust are led into an alkali liquor of the second liquid storage tank from the air outlet pipe, sulfides in the smoke and dust are absorbed, then the smoke and dust pass through the active aluminum oxide of the second drying mechanism, and the smoke and dust enter into the active carbon from the first air hole on the exhaust pipe, residual harmful ingredients in the smoke and dust are absorbed through the active carbon, then the smoke and dust enter into the outer shell from the second air hole on the inner shell, and finally the smoke and dust is discharged into the atmosphere from the tail discharge port, so that the good absorption and purification effects on the smoke and dust are achieved, and the pollution to the environment when a transformer is in fire is effectively reduced.

3. The first motor through telescopic machanism can drive the rotation of first worm, drive first worm wheel and swivel nut through first worm and rotate, make swivel nut and vertical screw rod take place relative displacement, and drive the landing leg through the first worm wheel on the swivel nut and stretch out downwards along square pipe, third motor drive main shaft and the wire reel through receiving paying out machine constructs simultaneously rotate, pay off to the earth conductor, the in-process that the landing leg moved down rotates through second motor drive earth bar, bore it into earth ground through the spiral gusset on the earth bar, form as shown in figure 21 the state, thereby not only form firm support to the frame, and realize ground connection through the earth bar to the frame, avoid this transformer extinguishing device to connect the electricity in the operation in-process accident and cause the electric shock to damage to the consumer on this transformer extinguishing device.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged partial schematic view at A1 in FIG. 2;

FIG. 4 is a sectional view taken at H-H of FIG. 3;

FIG. 5 is an enlarged partial schematic view at A2 in FIG. 2;

FIG. 6 is a cross-sectional S-S view of FIG. 5;

FIG. 7 is an enlarged partial schematic view at A3 in FIG. 2;

FIG. 8 is an enlarged view of a portion of FIG. 1 at B;

FIG. 9 is an enlarged partial schematic view at B1 in FIG. 8;

FIG. 10 is an enlarged partial schematic view at B2 in FIG. 8;

FIG. 11 is an enlarged partial schematic view at B3 in FIG. 8;

FIG. 12 is an enlarged partial schematic view at C of FIG. 1;

FIG. 13 is a cross-sectional view V-V of FIG. 12;

FIG. 14 is an enlarged partial schematic view taken at D in FIG. 1;

FIG. 15 is a schematic structural view of the scissors lifting mechanism of FIG. 1;

FIG. 16 is a cross-sectional view of FIG. 15;

FIG. 17 is a right side view of FIG. 15;

FIG. 18 is a schematic view of a prior art outdoor power distribution station;

FIG. 19 is a left side cross-sectional view of FIG. 18;

FIG. 20 is a schematic diagram of the operation of the present invention;

fig. 21 is a partially enlarged view of W in fig. 20.

Detailed Description

As shown in figure 1, the transformer fire extinguishing device comprises a frame 1, a bedplate 2, a pair of housings 3, a pair of transverse moving mechanisms 4, a pair of induced draft fans 5, a pair of suspension type dry powder fire extinguishers 6, universal wheels 7, traveling wheels 8, a smoke dust purification mechanism 10, a supporting grounding mechanism 11 and a scissor fork lifting mechanism 12, the universal wheels 7 and the traveling wheels 8 are mounted at the bottom of the frame 1, as shown in fig. 2 to 7, the supporting and grounding mechanism 11 comprises supporting legs 14, a square tube 15, a take-up and pay-off mechanism, a grounding rod 16, a second motor 17, a spring 18, a conductive pressing block 19 and a connecting terminal 20, the square tube 15 is fixedly mounted on the frame 1, the supporting legs 14 are movably inserted in the square tube 15, a telescopic mechanism is arranged between the square tube 15 and the supporting leg 14, and the specific structure of the telescopic mechanism and the specific connection relationship among the square tube 15, the supporting leg 14 and the telescopic mechanism are as follows: the telescopic mechanism comprises a vertical screw 21, a screw sleeve 22, a first worm 23 and a first motor 24, wherein a vertical hole 25 is formed in the supporting leg 14, an accommodating groove 26 is formed in the vertical hole 25 in the supporting leg 14, the vertical screw 21 is positioned in the square pipe 15 and the supporting leg 14 and penetrates through the vertical hole 25 of the supporting leg 14, the upper end part of the vertical screw 21 is fixedly connected with the square pipe 15, a first worm wheel 27 is arranged on the screw sleeve 22, a first screw hole 28 is formed in the screw sleeve 22, the screw sleeve 22 is movably arranged in the vertical hole 25 and is screwed outside the vertical screw 21 through the first screw hole 28, the first worm wheel 27 on the screw sleeve 22 is movably clamped in the accommodating groove 26 through a pair of first thrust bearings 29, a shaft sleeve 30 is arranged on the supporting leg 14, the first worm 23 is movably arranged in the accommodating groove 26 of the supporting leg 14 and is meshed with the first worm wheel 27, the first motor 24 is fixedly arranged on the shaft sleeve 30, one end of the first worm 23 penetrates out of the shaft sleeve 30 and is in transmission connection with the first motor 24 through a first coupling 31, and a vertical groove 32 corresponding to the shaft sleeve 30 is formed in the square pipe 15.

The grounding rod 16 is movably mounted at the lower part of the supporting leg 14 through a pair of first bearings 33, a spiral rib plate 34 is arranged on the grounding rod 16, the second motor 17 is fixedly mounted in the supporting leg 14 and is in transmission connection with the grounding rod 16 through a second coupler 35, a guide hole 36 is formed in the supporting leg 14, a metal rod 37 is arranged on the conductive pressing block 19, the metal rod 37 is movably inserted in the guide hole 36, the spring 18 is sleeved on the metal rod 37, two end parts of the spring 18 respectively abut against the conductive pressing block 19 and the supporting leg 14, the conductive pressing block 19 presses against the grounding rod 16, and the connecting terminal 20 is fixedly mounted on the supporting leg 14 and is electrically connected with the metal rod 37 through a flexible lead 38. The take-up and pay-off mechanism comprises a frame 39, a main shaft 40, a wire spool 41, a grounding lead 42, an insulating cylinder 43, an insulating seat 44, an annular conducting strip 45, a conducting plate 46 and a third motor 47, wherein the frame 39 is fixedly arranged on the square pipe 15, the main shaft 40 is movably arranged on the frame 39 through a pair of fourth bearings 120, the third motor 47 is fixedly arranged on the frame 39 and is in transmission connection with the main shaft 40 through a third coupler 48, the wire spool 41 is fixedly arranged on the main shaft 40, an opening 49 is formed in the front part of the wire spool 41, the insulating cylinder 43 is fixedly arranged on the frame 39 and penetrates into the wire spool 41 from the opening 49, an insulating cylinder 50 is arranged in the wire spool 41, the annular conducting strip 45 is fixedly sleeved outside the insulating cylinder 50, the insulating seat 44 is fixedly arranged in the insulating cylinder 43, the conducting plate 46 is fixedly arranged on the insulating seat 44, a splayed conducting pressing sheet 51 is arranged on the conducting plate 46, the conductive sheet 51 is pressed against the outer side of the annular conductive sheet 45, the conductive sheet 46 is electrically connected to the square tube 15 via the conductor 52, the ground wire 42 is wound around the bobbin 41, one end of the ground wire 42 is inserted into the bobbin 41 and is fixedly inserted into the insulating cylinder 50, the one end of the ground wire 42 is electrically connected to the annular conductive sheet 45, and the other end of the ground wire 42 is electrically connected to the terminal 20.

As shown in fig. 8 to 11, the smoke purifying mechanism 10 includes a bracket 53, a first liquid storage tank 54, a second liquid storage tank 55, a smoke inlet pipe 56, a first drying mechanism 57, a second drying mechanism 58, an inner shell 59 and an outer shell 60, the bracket 53 is fixedly installed at the bottom of the frame 1, the first liquid storage tank 54 and the second liquid storage tank 55 are fixedly installed on the bracket 53, an acidic urea solution 61 is stored in the first liquid storage tank 54, an alkaline solution 62 is stored in the second liquid storage tank 55, the smoke inlet pipe 56 is Y-shaped, the lower end of the smoke inlet pipe 56 is fixedly penetrated in the first liquid storage tank 54 and is immersed in the acidic urea solution 61, the first drying mechanism 57 and the second drying mechanism 58 respectively include a drying bin 63 and a shell 64, the shell 64 is fixedly installed in the drying bin 63, the shell 64 is filled with an active alumina 65, two side walls of the shell 64 are provided with ventilation holes 66, a liquid outlet 67 is arranged on the bottom wall of the shell 64, a liquid return port 68 corresponding to the liquid outlet 67 is arranged on the bottom wall of the drying chamber 63, the front part of the drying chamber 63 of the first drying mechanism 57 is communicated with the inside of the first liquid storage tank 54 through a first air pipe 69, the liquid return port 68 of the drying chamber 63 of the first drying mechanism 57 is communicated with the inside of the first liquid storage tank 54 through a first liquid return pipe 70, an air outlet pipe 71 is arranged at the rear part of the drying chamber 63 of the first drying mechanism 57, the air outlet pipe 71 is arranged in the second liquid storage tank 55 in a penetrating way and is immersed in the alkali liquor 62, the front part of the drying chamber 63 of the second drying mechanism 58 is communicated with the inside of the second liquid storage tank 55 through a second air pipe 72, the liquid return port 68 of the drying chamber 63 of the second drying mechanism 58 is communicated with the inside of the second liquid storage tank 55 through a second liquid return pipe 73, an exhaust pipe 74 is arranged at the rear part of the drying chamber 63 of the, an annular cavity is formed between the inner shell 59 and the exhaust pipe 74, activated carbon 75 is filled in the annular cavity, a first air hole 76 is formed in the exhaust pipe 74 on the inner peripheral wall of the annular cavity, a second air hole 77 is formed in the inner shell 59 on the outer peripheral wall of the annular cavity, the outer shell 60 is fixedly installed on the exhaust pipe 74 and sleeved outside the inner shell 59, and a tail exhaust port 78 is formed in the outer shell 60.

The scissor lifting mechanism 12 is movably mounted on the frame 1 through the rotating mechanism 79, the bedplate 2 is fixedly mounted on the scissor lifting mechanism 12, the specific structures of the scissor lifting mechanism 12 and the rotating mechanism 79 and the specific connection relations among the frame 1, the rotating mechanism 79, the scissor lifting mechanism 12 and the bedplate 2 are as follows: as shown in fig. 9, the rotating mechanism 79 includes a bearing seat 80, a rotating table 81, and a fourth motor 82, the bearing seat 80 is fixedly mounted on the frame 1, the rotating table 81 is movably mounted in the bearing seat 80 by a second thrust bearing 83 and a second radial bearing 84, a ring gear 85 is provided on the rotating table 81, the fourth motor 82 is fixedly mounted on the frame 1, a gear 86 is provided on an output shaft of the fourth motor 82, and the gear 86 is engaged with the ring gear 85 of the rotating table 81. As shown in fig. 15 to 17, the scissors lifting mechanism 12 includes a scissors frame, an adjusting screw 88, a lower frame seat 89, an upper frame seat 90 and a fifth motor 91, the lower frame seat 89 is fixedly installed on a rotating platform 81, the scissors frame is composed of folding plates 87, the folding plates 87 are arranged in a crossed manner, the middle parts of the folding plates 87 are hinged through first pins 92, the end parts of the folding plates 87 are hinged through second pins 93 and third pins 94 respectively, the scissors frame is hinged with the lower frame seat 89 and the upper frame seat 90 through fifth pins 95 respectively, limit grooves 96 are respectively formed on the lower frame seat 89 and the upper frame seat 90, the scissors frame is movably clamped in the limit grooves 96 of the lower frame seat 89 and the upper frame seat 90 through fourth pins 97, pulleys 98 are respectively arranged on the fourth pins 97, the pulleys 98 are respectively contacted with the inner bottom wall of the lower frame seat 89 and the inner top wall of the upper frame seat 90, shaft holes are formed on the second pins 93, an adjusting screw hole 99 is formed in the third pin 94, the adjusting screw 88 is movably arranged in the shaft hole in a penetrating manner through the second bearing 100 and is in threaded connection with the adjusting screw hole 99 of the third pin 94, the fifth motor 91 is fixedly arranged on the second pin 93 and is in transmission connection with the adjusting screw 88 through the fifth coupler 101, and the bedplate 2 is fixedly arranged on the upper frame base 90.

As shown in fig. 12 and 13, the paired traverse mechanisms 4 respectively include a traverse base 102, a first screw 103 and a sixth motor 104, a guide rail 105 is disposed on the platen 2, a sliding slot 106 and a second screw hole 107 are disposed on the traverse base 102, the traverse base 102 is movably clamped on the guide rail 105 through the sliding slot 106, a boss 108 is disposed on the platen 2, the first screw 103 is movably mounted on the boss 108 and is rotatably disposed in the second screw hole 107 of the traverse base 102, and the sixth motor 104 is fixedly mounted on the boss 108 and is in transmission connection with the first screw 103 through a sixth coupling 109. Paired housings 3 are respectively and fixedly installed on the traversing seats 102 of the paired traversing mechanisms 4, avoidance grooves 110 are respectively opened on the front wall and the rear wall of the paired housings 3, as shown in fig. 14, a wire groove 111 is opened on the top wall of one housing 3, the paired suspension type dry powder fire extinguishers 6 are respectively and fixedly installed on the inner top walls of the paired housings 3, the paired induced draft fans 5 are respectively and fixedly installed on the outer side walls of the paired housings 3, smoke suction ports 112 are respectively opened on the side walls of the paired housings 3, the air inlets of the paired induced draft fans 5 are respectively communicated with the smoke suction ports 112 through pipelines 113, and the air outlets of the paired induced draft fans 5 are respectively communicated with the upper ends of the smoke inlet pipes 56 of the smoke purification mechanism 10 through bellows 114.

As shown in fig. 20, when a fire breaks out in the transformer 400, the fire extinguishing apparatus of the transformer of the present invention is pushed to the position under the transformer 400 in the distribution area, then the first motor 24 of the telescoping mechanism drives the first worm 23 to rotate, the first worm wheel 27 and the threaded sleeve 22 are driven by the first worm 23 to rotate, so that the threaded sleeve 22 and the vertical screw 21 are relatively displaced, the first worm wheel 27 on the threaded sleeve 22 drives the supporting leg 14 to extend downwards along the square pipe 15, meanwhile, the third motor 47 of the take-up and pay-off mechanism drives the main shaft 40 and the wire spool 41 to rotate, the ground wire 42 is paid off, the ground rod 16 is driven by the second motor 17 to rotate during the downward movement of the supporting leg 14, the ground rod 16 is driven to drill into the ground through the spiral rib plate 34 on the ground rod 16 to form the state shown in fig. 21, thereby not only forming a firm support for the vehicle frame 1, but also achieving grounding for the vehicle frame 1 through the ground rod 16, the transformer fire extinguishing device is prevented from being accidentally electrified in the operation process to damage electric parts on the transformer fire extinguishing device by electric shock. Next, the bedplate 2 is lifted by the scissor lift mechanism 12, the angle of the bedplate 2 is finely adjusted by the rotating mechanism, the paired housings 3 are positioned at the front and rear sides of the transformer 400, the avoidance slots 110 on the housings 3 are aligned with the framework 402 below the transformer 400, then the sixth motor 104 of the traversing mechanism 4 drives the first screw rod 103 to rotate, the traversing base 102 is driven by the first screw rod 103 to move along the guide rail 105, the paired housings 3 move oppositely and are covered outside the transformer 400 in a closed manner, and the wire slot 111 on the top wall of one housing 3 is used for avoiding the high-voltage side lead 403 of the transformer 400. When the paired housings 3 are closed, the fire is enclosed in the paired housings 3, the high temperature in the housings 3 causes the temperature-sensitive glass tubes on the paired suspension type dry powder fire extinguishers 6 to break, and further triggers the suspension type dry powder fire extinguishers 6 to spray fire extinguishing agents to extinguish the fire of the transformer 400, smoke dust in the paired housings 3 is sucked by the paired draught fans 5 while extinguishing the fire, the smoke dust is led into the acidic urea solution 61 of the first liquid storage tank 54 through the pipeline 113, the corrugated pipe 114 and the smoke inlet pipe 56 to absorb nitrogen oxides in the smoke dust, then the smoke dust passes through the activated alumina 65 of the first drying mechanism 57 and is led into the alkali liquor 62 of the second liquid storage tank 55 through the gas outlet pipe 71 to absorb sulfides in the smoke dust, then the smoke dust passes through the activated alumina 65 of the second drying mechanism 58 and enters the activated carbon 75 from the first gas hole 76 on the gas outlet pipe 74, the remaining harmful components in the soot are absorbed by the activated carbon 75, and then the soot enters the outer casing 60 from the second air holes 77 of the inner casing 59, and finally is discharged to the atmosphere from the tail discharge port 78, thereby having good absorption and purification effects on the smoke dust, effectively reducing the pollution to the environment when the transformer 400 is in fire, because the temperature of the flue gas is higher when the flue gas is introduced into the acidic urea solution 61 and the alkaline solution 62, part of the acidic urea solution 61 and the alkaline solution 62 are vaporized, the part of the vaporized liquid is thus absorbed by the activated alumina 65 in the first drying means 57 and the second drying means 58, when the activated alumina 65 is saturated, the liquid flows back to the first liquid storage tank 54 and the second liquid storage tank 55 through the first liquid return pipe 70 and the second liquid return pipe 73, so as to reduce the loss of the acid urea solution 61 and the alkali solution 62 due to vaporization.

Claims

1. Transformer extinguishing device, its characterized in that: the dry powder fire extinguisher comprises a frame, a bedplate, a pair of housings, a pair of transverse moving mechanisms, a pair of induced draft fans, a pair of suspension type dry powder fire extinguishers, universal wheels, walking wheels, a smoke purifying mechanism, a supporting grounding mechanism and a scissor lifting mechanism, wherein the universal wheels and the walking wheels are arranged at the bottom of the frame, the supporting grounding mechanism comprises supporting legs, a square tube, a wire collecting and releasing mechanism, a grounding rod, a second motor, a spring, a conductive pressing block and a wiring terminal, the square tube is fixedly arranged on the frame, the supporting legs are movably inserted into the square tube, a telescopic mechanism is arranged between the square tube and the supporting legs, the grounding rod is movably arranged at the lower part of the supporting legs, a spiral rib plate is arranged on the grounding rod, the second motor is fixedly arranged in the supporting legs and is in transmission connection with the grounding rod, guide holes are formed in the supporting legs, metal rods are arranged on the conductive pressing blocks, and are movably inserted into the guide holes, the spring is sleeved on the metal rod, two end parts of the spring are respectively abutted against the conductive pressing block and the supporting leg, the conductive pressing block is pressed on the grounding rod, the wiring terminal is fixedly arranged on the supporting leg and is electrically connected with the metal rod through a flexible wire, the wire winding and unwinding mechanism comprises a frame, a main shaft, a wire winding disc, a grounding wire, an insulating cylinder, an insulating seat, an annular conductive sheet, a conductive plate and a third motor, the frame is fixedly arranged on a square tube, the main shaft is movably arranged on the frame, the third motor is fixedly arranged on the frame and is in transmission connection with the main shaft, the wire winding disc is fixedly arranged on the main shaft, an opening is formed in the front part of the wire winding disc, the insulating cylinder is fixedly arranged on the frame and penetrates into the wire winding disc from the opening, the insulating cylinder is arranged in the wire winding disc, the annular conductive sheet is fixedly sleeved on the outer side of the insulating cylinder, the insulating seat is fixedly arranged in the insulating cylinder, and the conductive plate is fixedly arranged on the insulating seat, the fume purifying mechanism comprises a bracket, a first liquid storage tank, a second liquid storage tank, a fume inlet pipe, a first drying mechanism, a second drying mechanism, an inner shell and an outer shell, wherein the bracket is fixedly arranged at the bottom of the frame, the first liquid storage tank and the second liquid storage tank are fixedly arranged on the bracket, acid urea solution is stored in the first liquid storage tank, alkali liquor is stored in the second liquid storage tank, the fume inlet pipe is Y-shaped, and the lower end part of the fume inlet pipe is fixedly arranged in the first liquid storage tank, and is immersed in the acidic urea solution, the first drying mechanism and the second drying mechanism respectively comprise a drying chamber and a shell, the shell is fixedly arranged in the drying chamber, activated alumina is filled in the shell, air holes are arranged on two side walls of the shell, a liquid outlet is arranged on the bottom wall of the shell, a liquid return port corresponding to the liquid outlet is arranged on the bottom wall of the drying chamber, the front part of the drying chamber of the first drying mechanism is communicated with the inside of the first liquid storage tank through a first air pipe, the liquid return port of the drying chamber of the first drying mechanism is communicated with the inside of the first liquid storage tank through a first liquid return pipe, an air outlet pipe is arranged at the rear part of the drying chamber of the first drying mechanism, the air outlet pipe penetrates in the second liquid storage tank and is immersed in the alkali liquor, the front part of the drying chamber of the second drying mechanism is communicated with the inside of the second liquid storage tank through a second air pipe, the liquid return port of the drying chamber of the second drying mechanism is communicated with the inside of the second liquid storage tank through a second liquid return pipe, an exhaust pipe is arranged at the rear part of a drying bin of the second drying mechanism, an inner shell is fixedly sleeved outside the exhaust pipe, an annular cavity is formed between the inner shell and the exhaust pipe, activated carbon is filled in the annular cavity, a first air hole is formed in the exhaust pipe on the inner peripheral wall of the annular cavity, a second air hole is formed in the inner shell on the outer peripheral wall of the annular cavity, the outer shell is fixedly arranged on the exhaust pipe and sleeved outside the inner shell, a tail discharge port is formed in the outer shell, the scissor lifting mechanism is movably arranged on the frame through a rotating mechanism, the bedplate is fixedly arranged on the scissor lifting mechanism, the paired transverse moving mechanisms respectively comprise a transverse moving seat, a first screw rod and a sixth motor, a guide rail is arranged on the bedplate, a sliding groove and a second screw hole are formed in the transverse moving seat, the transverse moving seat is movably clamped on the guide rail through the sliding groove, a convex seat is arranged on the bedplate, and the first screw rod is movably arranged on the convex seat, and the sixth motor is fixedly installed on the convex seat and is in transmission connection with the first screw rod, paired housings are respectively and fixedly installed on the transverse moving seats of the paired transverse moving mechanisms, avoidance grooves are respectively formed in the front wall and the rear wall of the paired housings, a wire groove is formed in the top wall of one housing, paired suspension type dry powder fire extinguishers are respectively and fixedly installed on the inner top walls of the paired housings, paired draught fans are respectively and fixedly installed on the outer side walls of the paired housings, smoke suction ports are respectively formed in the side walls of the paired housings, air inlets of the paired draught fans are communicated with the smoke suction ports through pipelines, and air outlets of the paired draught fans are respectively communicated with the upper end parts of smoke inlet pipes of the smoke purification mechanisms through corrugated pipes.

2. The fire extinguishing apparatus for transformer according to claim 1, wherein: the telescopic mechanism comprises a vertical screw rod, a screw sleeve, a first worm and a first motor, wherein a vertical hole is formed in the supporting leg, an accommodating groove is formed in the vertical hole in the supporting leg, the vertical screw rod is positioned in the square tube and the supporting leg and penetrates through the vertical hole of the supporting leg, the upper end part of the vertical screw rod is fixedly connected with the square tube, a first worm wheel is arranged on the screw sleeve, a first screw hole is formed in the screw sleeve, the screw sleeve is movably arranged in the vertical hole in a penetrating manner and is rotatably sleeved outside the vertical screw rod through the first screw hole, the first worm wheel on the screw sleeve is movably clamped in the accommodating groove through a pair of first thrust bearings, a shaft sleeve is arranged on the supporting leg, the first worm is movably arranged in the accommodating groove of the supporting leg and is meshed with the first worm wheel, the first motor is fixedly arranged on the shaft sleeve, one end part of the first worm penetrates out of the shaft sleeve and is in transmission connection with the first motor through a first coupling, the square tube is provided with a vertical groove corresponding to the shaft sleeve.

3. The fire extinguishing apparatus for transformer according to claim 2, wherein: the rotary mechanism comprises a bearing seat, a rotary table and a fourth motor, the bearing seat is fixedly arranged on the frame, the rotary table is movably arranged in the bearing seat through a second thrust bearing and a second radial bearing, a gear ring is arranged on the rotary table, the fourth motor is fixedly arranged on the frame, an output shaft of the fourth motor is provided with a gear, the gear is meshed with the gear ring of the rotary table, the scissor lifting mechanism comprises a scissor bracket, an adjusting screw, a lower frame seat, an upper frame seat and a fifth motor, the lower frame seat is fixedly arranged on the rotary table, the scissor bracket is composed of folding plates, the folding plates are arranged in a crossed manner, the middle parts of the folding plates are hinged through first pins, the end parts of the folding plates are respectively hinged through second pins and third pins, the scissor bracket is respectively hinged with the lower frame seat and the upper frame seat through fifth pins, and the lower frame seat and the upper frame seat are respectively provided with a limiting groove, the fork shearing frame is movably clamped in the limiting grooves of the lower frame seat and the upper frame seat through a fourth pin, pulleys are respectively arranged on the fourth pin, the pulleys are respectively contacted with the inner bottom wall of the lower frame seat and the inner top wall of the upper frame seat, a shaft hole is formed in the second pin, an adjusting screw hole is formed in the third pin, an adjusting screw is movably arranged in the shaft hole in a penetrating mode through a second bearing and is in threaded connection with the adjusting screw hole of the third pin, a fifth motor is fixedly arranged on the second pin and is in transmission connection with the adjusting screw through a fifth coupler, and the bedplate is fixedly arranged on the upper frame seat.

4. Transformer fire extinguishing apparatus according to claim 1, 2 or 3, wherein: the ground rod is movably mounted on the lower portion of the supporting leg through paired first bearings, the second motor is in transmission connection with the ground rod through a second coupler, the main shaft is movably mounted on the frame through paired fourth bearings, the third motor is in transmission connection with the main shaft through a third coupler, the sixth motor is in transmission connection with the first lead screw through a sixth coupler, and the seventh motor is in transmission connection with the second lead screw through a seventh coupler.