CN111884093B - Power distribution cabinet for electric power engineering - Google Patents
Power distribution cabinet for electric power engineering Download PDFInfo
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- CN111884093B CN111884093B CN202010637144.3A CN202010637144A CN111884093B CN 111884093 B CN111884093 B CN 111884093B CN 202010637144 A CN202010637144 A CN 202010637144A CN 111884093 B CN111884093 B CN 111884093B
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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
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
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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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
- H02B1/48—Mounting of devices therein
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention belongs to the technical field of power equipment, and particularly relates to a power distribution cabinet for power engineering, which comprises a shell, a motor and a pressure sensor, wherein the shell is provided with a plurality of through holes; the right side surface of the shell is fixedly connected with a power box; a motor is arranged in the power box; a water pump is arranged at the left side position of the motor; an air pipe is arranged above the water pump; a reversing valve is arranged above the air pipe; the rear surface of the inside of the shell is fixedly connected with a pressure sensor; mounting grooves are formed in the left side surface and the right side surface of the interior of the shell; the fire extinguishing boxes are fixedly connected inside the mounting grooves; the invention effectively realizes the water path cooling of the inside of the distribution box, and avoids the problems that water vapor in the external environment easily enters the inside of the distribution box under the condition of air flowing cooling, so that the inside of the distribution box is damped, and meanwhile, when the spark problem occurs in the inside of the distribution box, the flowing air easily causes fire disasters and the like.
Description
Technical Field
The invention belongs to the technical field of power equipment, and particularly relates to a power distribution cabinet for power engineering.
Background
The power distribution cabinet is divided into a power distribution cabinet, a lighting distribution cabinet and a metering cabinet, which are final-stage equipment of a power distribution system, the power distribution cabinet is a general name of a motor control center, the power distribution cabinet is used in occasions with dispersed loads and less loops, the motor control center is used in occasions with concentrated loads and more loops, the power distribution cabinet distributes electric energy of a certain circuit of upper-stage power distribution equipment to nearby loads, and the equipment of the stage provides protection, monitoring and control for the loads.
According to CN109149421A switch board, among the prior art, the fan carries out continuous operation of taking a breath to the inside of block terminal, guarantee the inside long-term aridity and the effectual cooling of block terminal, avoid the short circuit or the high temperature problem of block terminal internal circuit, but there is the conflict problem between operation of taking a breath and the block terminal leakproofness, often under moist environment, steam among the external environment enters into the inside of block terminal easily, make the inside of block terminal wet, when the spark problem appears in the inside of block terminal simultaneously, the air that flows makes the production scheduling problem of conflagration very easily.
In view of this, in order to overcome the above technical problems, the present company has designed and developed a power distribution cabinet for power engineering, which solves the above technical problems.
Disclosure of Invention
In order to make up the defects of the prior art and solve the problems that in the prior art, a fan conducts continuous ventilation operation on the inside of a distribution box, long-term dryness and effective cooling of the inside of the distribution box are guaranteed, the problem of short circuit or overhigh temperature of a circuit inside the distribution box is solved, but conflict exists between the ventilation operation and the sealing performance of the distribution box, water vapor in the external environment can easily enter the inside of the distribution box under a humid environment, the inside of the distribution box is wetted, and meanwhile when a spark problem occurs in the inside of the distribution box, the flowing air can easily cause fire disasters and the like.
The technical scheme adopted by the invention for solving the technical problem is as follows: the invention relates to a power distribution cabinet for power engineering, which comprises a shell, a motor and a pressure sensor, wherein the shell is provided with a plurality of through holes; the shell is designed into a cuboid structure; the inside of the shell is provided with a mounting groove; the front end surface of the shell is rotatably connected with a rotating door; a waterway supporting rod is arranged inside the shell; the surface of the waterway supporting rod is fixedly connected with an electrical element; the right side surface of the shell is fixedly connected with a power box; the lower surface of the interior of the power box is fixedly connected with a supporting block; the upper surface of the supporting block is fixedly connected with a motor, and an output shaft of the motor faces one side of the shell; the right side surface of the shell is fixedly connected with a water pump at the position of the motor, and the water pump is connected with an output shaft of the motor; the outer arc surface of the motor output shaft is fixedly connected with a first gear; a support plate is fixedly connected to the inner surface of the power box above the motor; the upper surface of the supporting plate is fixedly connected with an air pipe; the inner part of the air pipe is rotatably connected with a rotating shaft; the outer arc surface of the rotating shaft is fixedly connected with a second gear right above the first gear, the second gear is in sealed rotary connection with the air pipe, and the surface of the second gear is provided with a guide hole which is communicated from left to right at the position of the air pipe; the outer arc surface of the rotating shaft is fixedly connected with uniformly arranged fan blades at the right side of the second gear; the water inlet end of the water pump is connected with the waterway support rod, and the connection position is close to the bottom of the shell; a curved pipe is connected between the water outlet end of the water pump and the waterway supporting rod, the curved pipe is led into the air pipe at the right side position of the second gear, the air pipe is internally designed in a spiral structure, the curved pipe is led out from the air pipe at the position close to the shell and is connected to the waterway supporting rod, and the connection position is close to the middle position of the shell; a guide pipe is fixedly connected above the air pipe at the position of the left side of the second gear; a delivery pipe is fixedly connected to the right side of the second gear above the air pipe; when the distribution box is used, because the distribution box is placed under different environmental conditions for a long time, the environment outside the distribution box is easy to influence the circuit system inside the distribution box, such as high temperature, low temperature, dust, water and the like, in order to solve the problems, in the prior art, a fan can be used for continuously ventilating the inside of the distribution box, the long-term dryness and effective cooling inside the distribution box are ensured, the problems of short circuit or overhigh temperature of the circuit inside the distribution box are avoided, but the conflict problem exists between the ventilating operation and the sealing performance of the distribution box, in a humid environment, water vapor in an external environment easily enters the distribution box, so that the interior of the distribution box is wetted, and when a spark problem occurs in the interior of the distribution box, flowing air is very easy to cause fire and the like, through the distribution box for the electric power engineering, the water pump is driven to work through the water channel supporting rod arranged in the distribution box, so that the water pump can drive circulating water in the water channel supporting rod to flow, meanwhile, the output shaft of the motor can drive the first gear to rotate, the first gear further drives the second gear to rotate, the second gear can drive the rotating shaft to rotate, the rotating shaft further drives the fan blades on the surface of the rotating shaft to rotate, so that the air in the air pipe can rapidly flow, when the circulating water flows into the curved pipe at the air pipe position, the flowing air can take away heat in the curved pipe, so that the heat in the shell can be led out, the temperature in the power distribution cabinet is reduced, the power distribution cabinet does not need communication and flow of internal air and external air at the moment, so that complete sealing can be realized, and the influence of the external environment is avoided.
Preferably, a reversing pipe is fixedly connected to the position above the air guide pipe in the power box; a reversing valve is fixedly connected with the position right above the lead-in pipe in the reversing pipe; two inlet ends of the reversing valve are respectively communicated with the inside of the shell and the outside atmosphere; the outlet end of the reversing valve is communicated with the inlet pipe; a baffle is fixedly connected between the guiding-in pipe and the guiding-out pipe on the inner cambered surface of the reversing pipe; the interior of the reversing pipe of the delivery pipe is communicated, and the communicated part is positioned at the right side of the baffle; the right side position of the reversing pipe is connected with an exhaust pipe; the during operation, through setting up the switching-over pipe, through the inside at the switching-over pipe setting up the switching-over valve, two entry ends through the switching-over valve communicate with the inside and the external atmosphere of casing respectively, when just closing the turnstile, the inside intercommunication of switching-over valve and casing, can effectually take the inside air of casing out, then switch the entry end of switching-over valve and external atmosphere intercommunication, because the reduction of the inside atmospheric pressure of casing, the air total volume reduces by a wide margin, and then the oxygen total volume in the inside air of casing reduces, when the electric spark phenomenon appears in the inside of casing, can play effectual inhibitory action, avoid producing the conflagration problem.
Preferably, a frame block is fixedly connected to the inner surface of the shell at a position close to the rotating door; the front end face of the frame block is fixedly connected with first telescopic rods which are uniformly arranged; the front end surfaces of the first telescopic rods are fixedly connected with the same frame sealing block; a first sealing gasket and a second sealing gasket are fixedly connected between the front end surface of the frame sealing block and the rear surface of the front wall of the rotating door and the front wall of the shell respectively; the front end surface of the rotating door is rotatably connected with a rotating knob at a position close to the right side surface of the shell; the front end surface of the shell is provided with a sliding groove at the position of the rotary knob; a sliding block toothed plate is connected inside the sliding groove in a left-right sliding mode and is in meshed connection with the rotating knob; the shell is provided with a movable groove at the position of the sliding groove; a piston plate is arranged inside the movable groove; the during operation, because the inside atmospheric pressure of casing is less than outside atmospheric pressure, under this condition, the leakproofness between casing and the rotating door can require more, through setting up the rotation knob, after closing the rotating door, clockwise rotation knob, and then it can drive the slider pinion rack and slide right to rotate the knob, and then extrude the piston board right, the piston board moves the air that can compress the movable groove inside to the right, make the atmospheric pressure of movable groove inside rise, and then the inside that the gas of movable groove inside can enter into first telescopic link, first telescopic link can promote frame seal piece forward, and then make first sealed pad and second sealed pad respectively with rotate between door and the casing extrusion sealed, improve sealed effect.
Preferably, a pressure sensor is fixedly connected to the rear surface of the interior of the shell; mounting grooves are formed in the left side surface and the right side surface of the interior of the shell; the interior of each mounting groove is fixedly connected with a fire extinguishing box; compressed carbon dioxide gas or inert gas is contained in the fire extinguishing box; the side surfaces of the two opposite sides of the fire extinguishing boxes are fixedly connected with uniformly arranged spray heads; the during operation, through setting up pressure sensors, when the inside of casing produced a small amount of burning phenomenon, the air inflation volume that the burning produced is far less than the gaseous total shrinkage behind the oxygen consumption, therefore the inside atmospheric pressure of casing is when the initial stage of burning, can be quick reduce by a wide margin, and then sensed by the inside pressure sensors of casing, the transmission gives analysis control system, analysis control system makes the shower nozzle of fire extinguishing box all open, make the inside compressed interior of fire extinguishing box suppress the quick inside of spouting into the casing of gas, to the inside further flame retardant action that carries on of casing.
Preferably, a second telescopic rod is fixedly connected to the left side face of the inside of the sliding groove; the right side face of the baffle is fixedly connected with third telescopic rods which are uniformly arranged; the right side positions of the third telescopic rods are fixedly connected with the same moving ring together between the third telescopic rods; the surface of the moving ring is provided with air holes which are uniformly distributed; the left side surface of the moving ring is fixedly connected with a plug at the axis position of the moving ring; the baffle is fixedly connected with a connecting pipe at the blocking position, and the other end of the connecting pipe is directly communicated with the inside of the shell; the during operation, when the switch board is opened to needs, because the inside negative pressure state that presents of casing of switch board, be difficult to very much open, be unfavorable for the normal maintenance and the maintenance of switch board, through setting up the second telescopic link, when the revolving door is opened to needs, at first anticlockwise rotation rotates the knob, it can make the slider pinion rack move left to rotate the knob, and then the slider pinion rack can compress the second telescopic link, the inside gas of second telescopic link can enter into the inside of third telescopic link, the third telescopic link and then drive the shift ring and remove right, the shift ring and then drive the jam and leave the connecting pipe, the inside of casing can directly be through connecting pipe and external atmosphere intercommunication this moment, and then the revolving door that opens that can relax.
Preferably, the outer surface of the curved pipe is fixedly connected with a heating ring at the position below the air pipe; a heating cavity is formed in the heating ring; the heating cavity is filled with heat conducting liquid; the inner arc surface of the heating ring is fixedly connected with heating plates which are uniformly arranged; the during operation, when chilly winter, because the temperature is lower, the inside circulating water of water route bracing piece, solidify into ice easily, prop the rivers bracing piece, and because the temperature in the switch board this moment is lower, also be unfavorable for the normal work of circuit seriously, in order to keep the temperature of the inside of switch board casing at reasonable within range, through setting up the heating ring, heat through the inside hot plate of heating ring, make the heat conduction liquid temperature rise, and then the heat conduction liquid can make the inside circulation liquid temperature that flows through of bent shape pipe rise, guarantee that the interior temperature of switch board is at reasonable scope, the inside problem of freezing of water route bracing piece has also been avoided simultaneously.
The invention has the following beneficial effects:
1. according to the power distribution cabinet for the power engineering, the casing, the motor and the pressure sensor are arranged, the water path inside the power distribution cabinet is effectively cooled, the phenomenon that water vapor in the external environment easily enters the inside of the power distribution cabinet under the condition of air flowing and cooling is avoided, the inside of the power distribution cabinet is affected with damp, and meanwhile when a spark problem occurs inside the power distribution cabinet, the flowing air easily promotes the generation of a fire disaster.
2. According to the power distribution cabinet for the power engineering, the reversing valve is arranged, the two inlet ends of the reversing valve are respectively communicated with the inside of the shell and the outside atmosphere, when the rotating door is just closed, the reversing valve is communicated with the inside of the shell, so that the air in the shell can be effectively pumped out, then the inlet end of the reversing valve is switched to be communicated with the outside atmosphere, the total amount of the air is greatly reduced due to the reduction of the air pressure in the shell, the total amount of the oxygen in the air in the shell is further reduced, when an electric spark phenomenon occurs in the shell, an effective inhibiting effect can be achieved, and the fire problem is avoided.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a cross-sectional view taken at A-A of FIG. 2;
FIG. 5 is a cross-sectional view at B-B in FIG. 3;
FIG. 6 is an enlarged partial view at C of FIG. 4;
FIG. 7 is an enlarged partial view at D of FIG. 5;
in the figure: the fire extinguishing device comprises a shell 1, a rotary door 11, a waterway support rod 12, a first telescopic rod 13, a frame sealing block 14, a rotary knob 15, a sliding block toothed plate 16, a piston plate 17, a motor 2, a power box 21, a water pump 22, a first gear 23, a second gear 24, an air pipe 25, a pressure sensor 3, a fire extinguishing box 31, a reversing valve 32, a second telescopic rod 33, a third telescopic rod 34, a moving ring 35, a plug 36 and a heating ring 37.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 7, the power distribution cabinet for power engineering according to the present invention includes a housing 1, a motor 2, and a pressure sensor 3; the shell 1 is designed to be of a cuboid structure; the inside of the shell 1 is provided with a mounting groove; the front end surface of the shell 1 is rotatably connected with a rotating door 11; a waterway support rod 12 is arranged inside the shell 1; the surface of the waterway support rod 12 is fixedly connected with an electrical element; a power box 21 is fixedly connected to the right side surface of the shell 1; the lower surface of the interior of the power box 21 is fixedly connected with a supporting block; the upper surface of the supporting block is fixedly connected with a motor 2, and the output shaft of the motor 2 faces one side of the shell 1; the right side surface of the shell 1 is fixedly connected with a water pump 22 at the position of the motor 2, and the water pump 22 is connected with an output shaft of the motor 2; the outer arc surface of the output shaft of the motor 2 is fixedly connected with a first gear 23; a support plate is fixedly connected to the inner surface of the power box 21 above the motor 2; the upper surface of the supporting plate is fixedly connected with an air pipe 25; a rotating shaft is rotatably connected inside the air pipe 25; the outer arc surface of the rotating shaft is fixedly connected with a second gear 24 at a position right above the first gear 23, the second gear 24 is in sealed and rotating connection with an air pipe 25, and a guide hole which is communicated from left to right is formed in the position, on the air pipe 25, of the surface of the second gear 24; the outer arc surface of the rotating shaft is fixedly connected with uniformly arranged fan blades at the right side position of the second gear 24; the water inlet end of the water pump 22 is connected with the waterway support rod 12, and the connection position is close to the bottom position of the shell 1; a curved pipe is connected between the water outlet end of the water pump 22 and the waterway support rod 12, the curved pipe is led into the air pipe 25 at the right side position of the second gear 24, the interior of the air pipe 25 is in a spiral structure design, the position close to the shell 1 is led out from the air pipe 25 and is connected with the waterway support rod 12, and the connecting position is close to the middle position of the shell 1; a lead-in pipe is fixedly connected above the air pipe 25 at the left side position of the second gear 24; a delivery pipe is fixedly connected to the right side of the second gear 24 above the air pipe 25; when the distribution box is used, because the distribution box is placed under different environmental conditions for a long time, the environment outside the distribution box is easy to influence the circuit system inside the distribution box, such as high temperature, low temperature, dust, water and the like, in order to solve the problems, in the prior art, a fan can be used for continuously ventilating the inside of the distribution box, so that the long-term dryness and effective cooling inside the distribution box are ensured, the problems of short circuit or overhigh temperature of the circuit inside the distribution box are avoided, but the conflict problem exists between the ventilating operation and the sealing performance of the distribution box, in a humid environment, water vapor in an external environment easily enters the inside of the distribution box, so that the inside of the distribution box is affected with damp, and when a spark problem occurs in the inside of the distribution box, flowing air is very easy to cause fire, and the like, through the distribution box for electric power engineering, the waterway support rod 12 is arranged in the distribution box, the motor 2 drives the water pump 22 to work, so that the water pump 22 can drive circulating water in the waterway support rod 12 to flow, meanwhile, the output shaft of the motor 2 can drive the first gear 23 to rotate, the first gear 23 further drives the second gear 24 to rotate, the second gear 24 can drive the rotating shaft to rotate, the rotating shaft further drives the fan blades on the surface of the rotating shaft to rotate, so that the air in the air pipe 25 can rapidly flow, when the circulating water flows to the inside the curved pipe at the position of the air pipe 25, the heat in the air pipe 25 can be taken away by the flowing air, the invention effectively realizes the cooling of the water channel in the distribution box, and avoids the problem that water vapor in the external environment easily enters the distribution box under the condition of air flowing cooling, so that the interior of the distribution box is affected with damp, and meanwhile, when the spark problem occurs in the interior of the distribution box, the flowing air easily causes the fire disaster and other problems.
As an embodiment of the present invention, a reversing pipe is fixedly connected to the inside of the power box 21 above the air duct; a reversing valve 32 is fixedly connected with the position right above the lead-in pipe in the reversing pipe; the two inlet ends of the reversing valve 32 are respectively communicated with the inside of the shell 1 and the outside atmosphere; the outlet end of the reversing valve 32 is communicated with the inlet pipe; a baffle is fixedly connected between the guiding-in pipe and the guiding-out pipe on the inner cambered surface of the reversing pipe; the interior of the reversing pipe of the delivery pipe is communicated, and the communicated part is positioned at the right side position of the baffle plate; the right side of the reversing pipe is connected with an exhaust pipe; the during operation, through setting up the switching-over pipe, through the inside at the switching-over pipe set up switching-over valve 32, two entry ends through switching-over valve 32 communicate with the inside and the external atmosphere of casing 1 respectively, when just closing revolving door 11, switching-over valve 32 communicates with the inside of casing 1, can effectually take out the inside air of casing 1, then switch over the entry end of switching-over valve 32 with external atmosphere intercommunication again, because the reduction of the inside atmospheric pressure of casing 1, the air total reduces by a wide margin, and then the oxygen total amount in the inside air of casing 1 reduces, when the inside electric spark phenomenon of casing 1 appears, can play effectual inhibitory action, avoid producing the conflagration problem.
As an embodiment of the present invention, a frame block is fixedly connected to the inner surface of the housing 1 near the position of the rotating door 11; the front end face of the frame block is fixedly connected with first telescopic rods 13 which are uniformly arranged; the front end faces of the first telescopic rods 13 are fixedly connected with the same frame sealing block 14; a first sealing gasket and a second sealing gasket are fixedly connected between the front end surface of the frame sealing block 14 and the rear surface of the front wall of the rotating door 11 and the shell 1 respectively; a rotary knob 15 is rotatably connected to the front end face of the rotary door 11, which is close to the right side face of the shell 1; a sliding groove is formed in the front end face of the shell 1 at the position of the rotary knob 15; the sliding block toothed plate 16 is connected inside the sliding groove in a left-right sliding mode, and the sliding block toothed plate 16 is in meshed connection with the rotating knob 15; a movable groove is formed in the sliding groove of the shell 1; a piston plate 17 is arranged in the movable groove; during operation, because the inside atmospheric pressure of casing 1 is less than outside atmospheric pressure, under this condition, the leakproofness between casing 1 and the rotating door 11 can require more, through setting up rotation knob 15, after closing rotating door 11, clockwise rotation knob 15, and then rotation knob 15 can drive slider pinion rack 16 and slide right, and then right extrusion piston board 17, piston board 17 moves the air that can compress the movable groove inside to the right, make the inside atmospheric pressure of movable groove rise, and then the inside gas of movable groove can enter into the inside of first telescopic link 13, first telescopic link 13 can be with frame seal block 14 forward promotion, and then make first sealed pad and second sealed pad respectively with rotating door 11 and casing 1 between extrusion seal, improve sealed effect.
As an embodiment of the present invention, a pressure sensor 3 is fixedly connected to a rear surface position inside the housing 1; the left side surface and the right side surface inside the shell 1 are both provided with mounting grooves; the fire extinguishing boxes 31 are fixedly connected inside the mounting grooves; the fire extinguishing box 31 is internally filled with compressed carbon dioxide gas or inert gas; the side surfaces of the two opposite sides of the fire extinguishing boxes 31 are fixedly connected with uniformly arranged spray heads; the during operation, through setting up pressure sensors 3, when casing 1's inside produced a small amount of burning phenomenon, the air inflation volume that the burning produced is far less than the gaseous total shrinkage behind the oxygen consumption, therefore the inside atmospheric pressure of casing 1 is when the initial stage of burning, can be quick reduce by a wide margin, and then sensed by casing 1 inside pressure sensors 3, the transmission gives analytic control system, analytic control system makes the shower nozzle of fire extinguishing box 31 all open, make the inside quick inside of spouting into casing 1 of the gas that suppresses of the inside compression of fire extinguishing box 31, to casing 1 inside carry out further flame retardant action.
As an embodiment of the present invention, a second telescopic rod 33 is fixedly connected to a left side surface position inside the sliding chute; the right side face of the baffle is fixedly connected with third telescopic rods 34 which are uniformly arranged; the same moving ring 35 is fixedly connected between the third telescopic rods 34 at the right side position of the third telescopic rods 34; the surface of the moving ring 35 is provided with air holes which are uniformly distributed; the left side surface of the moving ring 35 is fixedly connected with a plug 36 at the axial position of the moving ring 35; the baffle is fixedly connected with a connecting pipe at the position of the plug 36, and the other end of the connecting pipe is directly communicated with the inside of the shell 1; the during operation, when the switch board is opened to needs, because 1 inside negative pressure state that presents of casing of switch board, be difficult to very much open, be unfavorable for the normal maintenance and the maintenance of switch board, through setting up second telescopic link 33, when the revolving door 11 is opened to needs, at first anticlockwise rotation rotates knob 15, it can make slider pinion rack 16 remove left to rotate knob 15, and then slider pinion rack 16 can compress second telescopic link 33, the inside gas of second telescopic link 33 can enter into the inside of third telescopic link 34, third telescopic link 34 and then drive shift ring 35 and move right, shift ring 35 and then drive and block up 36 and leave the connecting pipe, casing 1's inside can be directly through connecting pipe and external atmosphere intercommunication this moment, and then can relax open revolving door 11.
As an embodiment of the present invention, the outer surface of the curved pipe is fixedly connected with a heating ring 37 at a position below the air pipe 25; a heating cavity is formed in the heating ring 37; the heating cavity is filled with heat conducting liquid; the inner arc surface of the heating ring 37 is fixedly connected with heating plates which are uniformly arranged; the during operation, when chilly winter, because the temperature is lower, the inside circulating water of water route bracing piece 12, solidify into ice easily, prop the rivers bracing piece, and because the temperature in the switch board this moment is lower, also be unfavorable for the normal work of circuit seriously, in order to keep the temperature of switch board casing 1's inside at reasonable within range, through setting up heating ring 37, heat through the inside hot plate of heating ring 37, make the heat conduction liquid temperature rise, and then the heat conduction liquid can make the inside circulation liquid temperature that flows through of bent shape pipe rise, guarantee that the switch board internal temperature is at reasonable scope, the inside problem of freezing of water route bracing piece 12 has also been avoided simultaneously.
The specific working process is as follows:
when the distribution cabinet works, the waterway support rod 12 is arranged inside the distribution cabinet, the motor 2 drives the water pump 22 to work, and then the water pump 22 can drive circulating water inside the waterway support rod 12 to flow, meanwhile, the output shaft of the motor 2 can drive the first gear 23 to rotate, the first gear 23 further drives the second gear 24 to rotate, the second gear 24 can drive the rotating shaft to rotate, the rotating shaft further drives the fan blades on the surface of the rotating shaft to rotate, so that air inside the air pipe 25 can flow quickly, when the circulating water flows into the curved pipe at the position of the air pipe 25, the flowing air can take away heat inside the air pipe 25, so that the heat inside the shell 1 can be led out, the temperature inside the distribution cabinet is reduced, the distribution cabinet does not need to communicate and flow the inside and outside air, so that complete sealing can be carried out, and the influence of the external environment is avoided; by arranging the reversing pipe, arranging the reversing valve 32 in the reversing pipe, and respectively communicating two inlet ends of the reversing valve 32 with the inside of the shell 1 and the outside atmosphere, when the rotating door 11 is just closed, the reversing valve 32 is communicated with the inside of the shell 1, so that the air in the shell 1 can be effectively pumped out, and then the inlet end of the reversing valve 32 is switched to be communicated with the outside atmosphere, because the air pressure in the shell 1 is reduced, the total amount of the air is greatly reduced, the total amount of oxygen in the air in the shell 1 is reduced, and when an electric spark phenomenon occurs in the shell 1, an effective inhibiting effect can be achieved; by arranging the rotating knob 15, after the rotating door 11 is closed, the rotating knob 15 is rotated clockwise, the rotating knob 15 can drive the sliding block toothed plate 16 to slide rightwards, the piston plate 17 is extruded rightwards, the piston plate 17 moves rightwards to compress air in the moving groove, so that air pressure in the moving groove is increased, the air in the moving groove can enter the first telescopic rod 13, the first telescopic rod 13 can push the frame sealing block 14 forwards, and the first sealing gasket and the second sealing gasket are respectively extruded and sealed with the rotating door 11 and the shell 1; through the arrangement of the pressure sensor 3, when a small amount of combustion phenomenon is generated inside the shell 1, the air expansion amount generated by combustion is far smaller than the total shrinkage amount of the gas after oxygen consumption, so that the air pressure inside the shell 1 can be quickly and greatly reduced in the initial stage of combustion, and then is sensed by the pressure sensor 3 inside the shell 1 and transmitted to the analysis control system, the analysis control system enables the spray heads of the fire extinguishing box 31 to be opened, so that the gas suppressing gas compressed inside the fire extinguishing box 31 is quickly sprayed into the shell 1, and further flame retardant effect is performed on the inside of the shell 1; by arranging the second telescopic rod 33, when the rotating door 11 needs to be opened, firstly, the rotating knob 15 is rotated anticlockwise, the rotating knob 15 can enable the sliding block toothed plate 16 to move leftwards, then the sliding block toothed plate 16 can compress the second telescopic rod 33, gas in the second telescopic rod 33 can enter the third telescopic rod 34, the third telescopic rod 34 further drives the moving ring 35 to move rightwards, the moving ring 35 further drives the plug 36 to leave the connecting pipe, at the moment, the inside of the shell 1 can be directly communicated with the external atmosphere through the connecting pipe, and then the rotating door 11 can be opened easily; through setting up the heating ring 37, heat through the inside hot plate of heating ring 37 for heat conduction liquid temperature risees, and then heat conduction liquid can make the inside circulation liquid temperature that flows through of bent shape pipe risees, guarantees that the interior temperature of switch board is in reasonable scope, has also avoided the inside problem of freezing of water route bracing piece 12 simultaneously.
While there have been shown and described what are at present considered the fundamental principles of the invention, its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (6)
1. A power distribution cabinet for power engineering comprises a shell (1), a motor (2) and a pressure inductor (3); the method is characterized in that: the shell (1) is designed into a cuboid structure; an installation groove is formed in the shell (1); the front end face of the shell (1) is rotatably connected with a rotating door (11); a waterway supporting rod (12) is arranged in the shell (1); the surface of the waterway support rod (12) is fixedly connected with an electrical element; the right side surface of the shell (1) is fixedly connected with a power box (21); a supporting block is fixedly connected to the inner lower surface of the power box (21); the upper surface of the supporting block is fixedly connected with a motor (2), and an output shaft of the motor (2) faces one side of the shell (1); the water pump (22) is fixedly connected to the right side face of the shell (1) at the position of the motor (2), and the water pump (22) is connected with an output shaft of the motor (2); the outer arc surface of the output shaft of the motor (2) is fixedly connected with a first gear (23); a support plate is fixedly connected to the inner surface of the power box (21) above the motor (2); the upper surface of the supporting plate is fixedly connected with an air pipe (25); the inside of the air pipe (25) is rotatably connected with a rotating shaft; a second gear (24) is fixedly connected to the outer arc surface of the rotating shaft at a position right above the first gear (23), the second gear (24) is in sealed rotary connection with the air pipe (25), and a guide hole which is through from left to right is formed in the position, on the surface of the second gear (24), of the air pipe (25); the outer arc surface of the rotating shaft is fixedly connected with uniformly arranged fan blades at the right side of the second gear (24); the water inlet end of the water pump (22) is connected with the waterway support rod (12) and the connection position is close to the bottom position of the shell (1); a curved pipe is connected between the water outlet end of the water pump (22) and the waterway support rod (12), the curved pipe is led into the air pipe (25) at the right side position of the second gear (24), the interior of the air pipe (25) is in a spiral structural design, the position close to the shell (1) is led out from the air pipe (25) and is connected to the waterway support rod (12), and the connecting position is close to the middle position of the shell (1); a lead-in pipe is fixedly connected to the upper part of the air pipe (25) at the left side position of the second gear (24); and a delivery pipe is fixedly connected above the air pipe (25) at the right side position of the second gear (24).
2. The power distribution cabinet for power engineering according to claim 1, characterized in that: a reversing pipe is fixedly connected to the upper position of the air guide pipe in the power box (21); a reversing valve (32) is fixedly connected with the position right above the leading-in pipe in the reversing pipe; two inlet ends of the reversing valve (32) are respectively communicated with the inside of the shell (1) and the outside atmosphere; the outlet end of the reversing valve (32) is communicated with the inlet pipe; a baffle is fixedly connected between the guiding-in pipe and the guiding-out pipe on the inner cambered surface of the reversing pipe; the delivery pipe is communicated with the interior of the reversing pipe, and the communication position is positioned at the right side position of the baffle plate; and the right side position of the reversing pipe is connected with an exhaust pipe.
3. The power distribution cabinet for power engineering according to claim 2, characterized in that: a frame block is fixedly connected to the inner surface of the shell (1) close to the rotating door (11); the front end surface of the frame block is fixedly connected with first telescopic rods (13) which are uniformly arranged; the front end faces of the first telescopic rods (13) are fixedly connected with the same frame sealing block (14); a first sealing gasket and a second sealing gasket are fixedly connected between the front end surface of the frame sealing block (14) and the rear surface of the front wall of the rotating door (11) and the shell (1) respectively; the front end face of the rotating door (11) is rotatably connected with a rotating knob (15) at a position close to the right side face of the shell (1); a sliding groove is formed in the front end face of the shell (1) at the position of the rotary knob (15); a sliding block toothed plate (16) is connected inside the sliding groove in a left-right sliding mode, and the sliding block toothed plate (16) is meshed with the rotating knob (15); the shell (1) is provided with a movable groove at the position of the sliding groove; and a piston plate (17) is arranged in the movable groove.
4. The power distribution cabinet for power engineering according to claim 2, characterized in that: a pressure sensor (3) is fixedly connected to the rear surface of the inner part of the shell (1); mounting grooves are formed in the left side surface and the right side surface of the inner part of the shell (1); the fire extinguishing boxes (31) are fixedly connected inside the mounting grooves; the fire extinguishing box (31) is internally filled with compressed carbon dioxide gas or inert gas; the side surfaces of the two opposite sides of the fire extinguishing boxes (31) are fixedly connected with uniformly arranged spray heads.
5. The power distribution cabinet for power engineering according to claim 3, wherein: a second telescopic rod (33) is fixedly connected to the left side face of the inside of the sliding groove; the right side surface of the baffle is fixedly connected with third telescopic rods (34) which are uniformly arranged; the right side position of the third telescopic rods (34) between the third telescopic rods (34) is fixedly connected with the same moving ring (35) together; the surface of the moving ring (35) is provided with air holes which are uniformly distributed; the left side surface of the moving ring (35) is fixedly connected with a plug (36) at the axial position of the moving ring (35); the baffle is fixedly connected with a connecting pipe at the position of the plug (36), and the other end of the connecting pipe is directly communicated with the inside of the shell (1).
6. The power distribution cabinet for power engineering according to claim 1, characterized in that: the outer surface of the curved pipe is fixedly connected with a heating ring (37) at the lower position of the air pipe (25); a heating cavity is formed in the heating ring (37); the heating cavity is filled with heat conducting liquid; the inner arc surface of the heating ring (37) is fixedly connected with heating plates which are uniformly arranged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010637144.3A CN111884093B (en) | 2020-07-03 | 2020-07-03 | Power distribution cabinet for electric power engineering |
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| CN202010637144.3A CN111884093B (en) | 2020-07-03 | 2020-07-03 | Power distribution cabinet for electric power engineering |
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| CN111884093B true CN111884093B (en) | 2022-07-26 |
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| CN113765305A (en) * | 2021-09-26 | 2021-12-07 | 任峰 | Energy-saving accelerating magnetic motor |
| CN116488021B (en) * | 2023-06-25 | 2023-12-12 | 广东金晖隆开关有限公司 | Low-voltage cabinet for power equipment |
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| CN104505726A (en) * | 2014-12-02 | 2015-04-08 | 国家电网公司 | Automatic fire-proof power distribution cabinet |
| CN206774911U (en) * | 2017-05-22 | 2017-12-19 | 深圳旺科知识产权运营中心有限公司 | A kind of integrated power distribution cabinet of intelligent fire fighting |
| CN111293614A (en) * | 2020-03-30 | 2020-06-16 | 昆明富宇信息科技有限公司 | High-efficient heat dissipation type distribution automation monitoring device |
| CN111342371A (en) * | 2020-04-16 | 2020-06-26 | 胡从勇 | Air-draft heat-dissipation type electric power cabinet |
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2020
- 2020-07-03 CN CN202010637144.3A patent/CN111884093B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505726A (en) * | 2014-12-02 | 2015-04-08 | 国家电网公司 | Automatic fire-proof power distribution cabinet |
| CN206774911U (en) * | 2017-05-22 | 2017-12-19 | 深圳旺科知识产权运营中心有限公司 | A kind of integrated power distribution cabinet of intelligent fire fighting |
| CN111293614A (en) * | 2020-03-30 | 2020-06-16 | 昆明富宇信息科技有限公司 | High-efficient heat dissipation type distribution automation monitoring device |
| CN111342371A (en) * | 2020-04-16 | 2020-06-26 | 胡从勇 | Air-draft heat-dissipation type electric power cabinet |
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