A substation outdoor dehumidification electrical cabinet

Abstract

The present invention belongs to the technical field of electric power equipment, and specifically is an outdoor dehumidification electrical cabinet for a transformer substation, comprising a cabinet body, a cabinet door, a mounting plate and a dehumidification component; the present invention arranges absorbent cotton on the top surface, the back surface and both side surfaces of the cabinet door and the cabinet body, thereby absorbing condensation generated on the inner wall of the cabinet body, and a controller controls the forward and reverse rotation of a No. 1 motor, thereby driving the rotating shaft to rotate through a pulley and a synchronous belt, and then the rotating shaft drives the blades to rotate, and then all the blades rotate synchronously, thereby reversing the absorbent cotton to the outside or inside of the cabinet body, thereby drying the wet absorbent cotton or absorbing the condensation on the inside of the cabinet body, thereby making the absorbent cotton reusable, thereby preventing condensation from gathering and dripping on electrical components, thereby reducing corrosion to metal conductive parts, thereby reducing the probability of short-circuit grounding of equipment, thereby protecting the electrical components in the cabinet body, and thereby ensuring the continuous and safe operation of the power grid.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power equipment, in particular to an outdoor dehumidification electrical cabinet for a transformer substation. Background Art

[0002] Electrical cabinets are made of steel and are used to protect the normal operation of components. Electrical cabinets are widely used in chemical industry, environmental protection industry, power system, metallurgical system, industry, nuclear power industry, fire safety monitoring, transportation industry, etc.

[0003] Substations often require a large number of electrical cabinets to convert high-voltage power. Due to limited indoor space, many electrical cabinets are placed outdoors. In autumn and winter or during the rainy season, the temperature fluctuates greatly between day and night, and the air humidity is high, which will form a large amount of condensation on the inner wall of the electrical cabinet, causing problems such as grounding of the secondary circuit of the equipment, which may cause the circuit breaker to malfunction or refuse to operate, and in serious cases affect the safe operation of the power grid. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art, the present invention proposes an outdoor dehumidification electrical cabinet for a substation. The present invention is mainly used to solve the problem that a large amount of condensation will form on the inner wall of the electrical cabinet when the temperature changes greatly during the day and night due to high air humidity in the outdoor electrical cabinet, thus affecting the safe operation of the power grid.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: the present invention provides an outdoor dehumidification electrical cabinet for a substation, comprising a cabinet body, a cabinet door, a mounting plate and a dehumidification component; the cabinet door is arranged on one side wall of the cabinet body; one side of the cabinet door is hinged on the cabinet body; a mounting plate is arranged on the inner wall of the back side of the cabinet body; the mounting plate is fixedly connected to the cabinet body through a connecting rod; the mounting plate is used to install electrical components; the cabinet door and the top surface, back surface and both side surfaces of the cabinet body are all provided with the dehumidification component;

[0006] The dehumidification component includes absorbent cotton, blades, No. 1 motor, pulleys, synchronous belts and rotating shafts; the blades are evenly spaced; the rotating shafts in the middle of both ends of the blades are rotatably connected to the cabinet; the pulleys are fixedly connected to the rotating shafts at both ends of the blades, the two ends and the middle of the rotating shaft and the rotating shaft of No. 1 motor; the synchronous belt drives the pulleys on the rotating shaft of No. 1 motor and the pulleys in the middle of the rotating shaft, the pulleys at both ends of the rotating shaft and the pulleys on the rotating shafts at both ends of one of the outermost blades, and the pulleys on the rotating shafts at both ends of two adjacent blades; the mounting seat of No. 1 motor is fixedly connected to the cabinet; the absorbent cotton is fixedly connected to one side of the blade.

[0007] In autumn and winter when the weather is clear, the temperature difference between day and night increases. At night, the air temperature outside the cabinet is lower, which in turn makes the cabinet temperature lower. The heat generated during the operation of the electrical components inside the electrical cabinet is dissipated into the air inside the cabinet, making the air temperature inside the cabinet higher than the air temperature outside the cabinet. When the moisture in the air inside the cabinet encounters the cabinet with a lower temperature, the moisture in the air liquefies to form condensation and adheres to the inner wall of the cabinet, causing problems such as grounding of the secondary circuit of the equipment, which may cause the circuit breaker to malfunction or refuse to operate, and in serious cases affect the safe operation of the power grid. In this way, absorbent cotton is arranged on the top, back and both sides of the cabinet door and the cabinet body to absorb the condensation generated on the inner wall of the cabinet, thereby preventing the condensation from gathering and dripping on the electrical components to cause short circuit of the electrical components, thereby avoiding affecting the safe operation of the power grid. During the day, as the temperature rises, the temperature difference between the inside and outside of the cabinet decreases, thereby increasing the temperature of the cabinet body, and no more condensation will be generated. At this time, the absorbent cotton that has absorbed the condensation overnight already contains a large amount of moisture. The controller controls the No. 1 motor to rotate, and then drives the rotating shaft to rotate through the pulley and the synchronous belt. Because the belts at both ends of the rotating shaft The pulleys on the rotating shafts at both ends of the wheel and the pulleys on the rotating shafts at both ends of the two adjacent blades are all driven by synchronous belts, and then the rotating shaft drives the blades to rotate, and then all the blades rotate synchronously, and then the absorbent cotton is reversed to the outside of the cabinet. Due to the continuous increase in the outside temperature, the wet absorbent cotton is dried to make the absorbent cotton dry, so that the absorbent cotton can be reused. When night falls, the temperature in the cabinet gradually decreases, and the controller controls the motor to reverse, thereby driving the rotating shaft to reverse, and then driving the blades to reverse. When the absorbent cotton is located in the same plane in the cabinet, it stops rotating, and then absorbs the condensation generated on the inner wall of the cabinet again at night, thereby reducing corrosion to the metal conductive parts, thereby reducing the probability of short circuit and grounding of the equipment, thereby protecting the electrical components in the cabinet, thereby increasing the service life of the electrical components, and ensuring the continuous and safe operation of the power grid; at the same time, when the weather is relatively hot, the blades can be rotated at a certain angle, so that the entire cabinet is in an open state, thereby accelerating the heat dissipation of the electrical components in the cabinet, thereby reducing the aging of the electrical components caused by high temperature, and thereby increasing the service life of the electrical energy.

[0008] Preferably, a water retaining portion is provided on the cabinet door, the back side of the cabinet body and the blades on both side surfaces; the water retaining portion is located on one side of the water-absorbing cotton and the water retaining portion is inclined toward the water-absorbing cotton side; water outlet holes are provided on the blades at positions close to the water retaining portion; the water outlet holes are evenly spaced in the horizontal direction.

[0009] During operation, when the condensation generated on the side wall of the cabinet exceeds the absorbent cotton and reaches its maximum water locking capacity, water flows downward under the action of gravity, and then the water flow will gather at the bottom of the cabinet, causing the energized electrical components to contact the water and cause damage to the electrical components, affecting the operation of the power grid. Therefore, a water retaining portion is provided on the blade, and a water outlet hole is provided on the blade near the water retaining portion, so that the water flowing downward under the action of gravity is gathered in the cavity formed between the water retaining portion and the blade, and then discharged to the outside of the cabinet through the water outlet, thereby preventing water from gathering inside the cabinet and causing the electrical components to contact the water, thereby avoiding damage to the electrical components, and ensuring the continuous and safe operation of the power grid.

[0010] Preferably, an electric heater is provided inside the absorbent cotton; the electric heater is used to remove moisture from the absorbent cotton.

[0011] During operation, on rainy days (or rainy season), due to the high humidity of the outside air, the turned-out absorbent cotton cannot dry itself in a natural state, which causes the absorbent cotton to lose its water absorption function, thereby causing the dehumidification component to fail. Therefore, an electric heater is arranged in the absorbent cotton, and then the electric heater generates high temperature to evaporate the moisture in the absorbent cotton, and then the absorbent cotton is dried, so that the absorbent cotton maintains its water absorption characteristics, and then in continuous rainy weather or when the air humidity is high, the dehumidification component can still continue to work in a cycle, thereby increasing the scope of use of the electrical cabinet.

[0012] Preferably, a pair of side walls on the blade parallel to the axis of the blade's rotating shaft are each provided with a rubber strip; the rubber strip is fixedly connected to the blade; a pair of side walls on the blade perpendicular to the axis of the blade's rotating shaft are each provided with a sealing strip; the sealing strip is fixedly connected to the blade.

[0013] During operation, the outdoor electrical cabinet is directly exposed to the natural environment. In order to prevent rain, moisture, flying dust and insects from entering the electrical cabinet and causing damage to the electrical components, rubber strips are arranged on a pair of side walls parallel to the blade and its rotating shaft axis, and sealing strips are arranged on a pair of side walls perpendicular to the blade and its rotating shaft axis. In the process of the No. 1 motor driving the blade to rotate and close, the sealing strips on the pair of side walls perpendicular to the blade and its rotating shaft axis are completely in contact with the cabinet body, thereby achieving sealing between the side walls perpendicular to the blade rotating shaft and the cabinet body. At the same time, the rubber strips on adjacent blades gradually contact and squeeze each other, thereby achieving sealing between the blades. The rubber strips on the two outermost blades parallel to the rotating shaft axis contact and squeeze the cabinet body, thereby achieving sealing between the side walls parallel to the blade rotating shaft and the cabinet body, thereby achieving sealing of the entire cabinet body, thereby improving the sealing effect of the cabinet body, thereby preventing rain, moisture, flying dust and insects from entering the cabinet body and causing damage to the electrical components in the cabinet, thereby ensuring the continuous and safe operation of the power grid.

[0014] Preferably, a dehumidification component is arranged below the dehumidification component on the top surface of the cabinet; the dehumidification component comprises a No. 2 motor, a screw rod, a water storage tank, an extrusion wheel, a support rod, a water baffle and a magnet; the water storage tank is arranged directly below the dehumidification component on the top surface of the cabinet; the screw rod is arranged on both sides of the water storage tank; both ends of the screw rod are rotatably connected to the cabinet; the water storage tank and the screw rod are connected by threads; the support rod is arranged at intervals near one end of the water storage tank close to the dehumidification component; one end of the support rod is fixedly connected to the water storage tank; the other end of the support rod is rotatably connected to the extrusion wheel; One end of the screw rod is fixedly connected to the rotating shaft of the No. 2 motor; the mounting base of the No. 2 motor is fixedly connected to the cabinet; the water baffle is provided on the other end surface of the water tank; the middle part of the water baffle is rotatably connected to the side wall of the water tank; a torsion spring is provided between the water baffle and the side wall of the water tank; a drain outlet is provided on the cabinet at a position corresponding to the water baffle; a sealing plate is provided in the drain outlet; the sealing plate is hinged to the cabinet; the magnet is fixedly connected to the sealing plate; a gear lever is provided at the drain outlet; the gear lever is fixedly connected to the cabinet.

[0015] During operation, after the absorbent cotton on the top of the cabinet absorbs condensation on the inner wall of the cabinet top, when the adsorption force of the absorbent cotton on water is less than the gravity exerted on the water, water flows out of the absorbent cotton and drips onto the electrical components under the action of gravity, which can easily cause damage to the electrical components. Therefore, the No. 2 motor is used to drive the screw rod to rotate. Because the screw rod and the water storage tank are threadedly connected, the screw rod drives the water storage tank to move toward the other end of the screw rod, thereby driving the extrusion wheel to move, and then the extrusion wheel squeezes the absorbent cotton, and then the water absorbed by the absorbent cotton is squeezed and dripped into the water storage tank, thereby reducing the amount of water absorbed by the absorbent cotton. When the extrusion wheel completely squeezes the absorbent cotton once, the No. 2 motor reverses and drives the water storage tank to move in the opposite direction, thereby driving the extrusion wheel to squeeze the absorbent cotton again, further reducing the amount of water absorbed by the absorbent cotton. This avoids the absorbent cotton from absorbing water to saturation and being unable to absorb water, thereby ensuring that the absorbent cotton always has capacity, and no water will drip from the top surface of the cabinet, thereby avoiding damage to electrical components; when the water tank completely leaves the absorbent cotton directly below in the vertical direction, the No. 2 motor continues to reverse, and the water tank continues to move, and then the water tank pushes open the sealing plate, so that the end of the water tank is located outside the cabinet, and then the water baffle plate contacts the gear lever, causing the water baffle plate to rotate, and the No. 2 motor stops rotating, thereby draining the water in the water tank out of the cabinet, and then the motor rotates, driving the water tank to move into the cabinet, the water baffle plate leaves the gear lever, and the water baffle plate is reset under the torsion of the torsion spring. As the water tank continues to move, the baffle plate is reset under the action of the magnet to seal the drain outlet.

[0016] Preferably, the electrical component is fixedly connected to the mounting plate via a mounting seat; the mounting plate and the mounting seat are both made of heat-conducting material.

[0017] During operation, since the mounting plate and the mounting seat are both made of heat-conducting materials, the heat generated by the electrical components is transferred to the mounting plate through the mounting seat, thereby increasing the temperature of the mounting plate, and the moisture in the air is evaporated when it contacts the mounting plate, thereby avoiding condensation on the mounting plate, thereby avoiding electrical components from contacting water, and thereby avoiding short circuits and damage to the electrical components, thereby ensuring the continuous and safe operation of the power grid.

[0018] Preferably, the outer surface of the mounting plate is covered with a layer of insulating material; an insulating avoidance groove is provided on one side of the mounting plate for mounting the electrical component; and the mounting seat is in direct contact with the mounting plate through the insulating avoidance groove.

[0019] During operation, a layer of insulating material is provided on the outer surface of the mounting plate to isolate the charged electrical components from the cabinet, thereby preventing leakage of electricity from the electrical components to the cabinet, thereby preventing the cabinet from being charged, thereby preventing electric shock to the staff or maintenance personnel when they touch the box, thereby protecting the safety of the personnel, and at the same time preventing the electrical components from being damaged by a short circuit caused by the cabinet grounding, thereby increasing the service life of the electrical components; by providing an insulating avoidance groove, the mounting seat is in direct contact with the mounting plate, so that the heat on the electrical components can be quickly transferred to the mounting plate, thereby accelerating the evaporation rate of moisture in the air when it contacts the mounting plate, thereby avoiding condensation on the mounting plate.

[0020] Preferably, a raised seat is provided under the cabinet body; the raised seat is filled with heat-insulating material.

[0021] During operation, a heightened base is provided under the cabinet to prevent the bottom of the cabinet from directly contacting the ground or the cable trench. In addition, because the heightened base is filled with insulation material, the bottom of the cabinet is insulated, so that the temperature of the bottom of the cabinet is basically consistent with the air temperature inside the cabinet, thereby preventing condensation from forming due to a large difference between the temperature of the bottom of the cabinet and the temperature of the air inside the cabinet. At the same time, it reduces the cold and humid air on the ground or in the cable trench from entering the cabinet through the cable hole at the bottom of the cabinet, thereby reducing the humidity of the air inside the cabinet and reducing condensation inside the cabinet.

[0022] The beneficial effects of the present invention are as follows:

[0023] 1. In the present invention, water-absorbing cotton is arranged on the top, back and both side surfaces of the cabinet door and the cabinet body, so as to absorb the condensation generated on the inner wall of the cabinet, thereby preventing the condensation from gathering and dripping on the electrical components to cause short circuit of the electrical components, thereby avoiding affecting the safe operation of the power grid. During the day, as the temperature rises, the temperature difference between the inside and outside of the cabinet is reduced, thereby increasing the temperature of the cabinet body, and no condensation will be generated. At this time, the water-absorbing cotton that has absorbed the condensation overnight already contains a large amount of moisture. The controller controls the No. 1 motor to rotate, and then drives the rotating shaft to rotate through the pulley and the synchronous belt. Because the pulleys at both ends of the rotating shaft and the pulleys on the rotating shaft at both ends of one of the outermost blades and the pulleys on the rotating shafts at both ends of the two adjacent blades are all driven by the synchronous belt, the rotating shaft drives the blades to rotate, and then all the blades rotate synchronously, and then the water-absorbing cotton is reversed to the outside of the cabinet. Due to the uneven outside temperature The temperature rises continuously, thereby drying the wet absorbent cotton, making the absorbent cotton dry, and making the absorbent cotton reusable. When night falls, the temperature in the cabinet gradually decreases, and the controller controls the motor to reverse, thereby driving the rotating shaft to reverse, and then driving the blades to reverse. When the absorbent cotton is located in the same plane in the cabinet, it stops rotating, and then absorbs the condensation generated on the inner wall of the cabinet again at night, thereby reducing corrosion to the metal conductive parts, thereby reducing the probability of short circuit and grounding of the equipment, thereby protecting the electrical components in the cabinet, thereby increasing the service life of the electrical components and ensuring the continuous and safe operation of the power grid. At the same time, when the weather is hot, the blades can be rotated at a certain angle, so that the entire cabinet is in an open state, thereby accelerating the heat dissipation of the electrical components in the cabinet, thereby reducing the aging of the electrical components caused by high temperature, and thereby increasing the service life of the electrical components.

[0024] 2. In the present invention, when the condensation generated on the side wall of the cabinet exceeds the absorbent cotton and reaches its maximum water locking capacity, water flows downward under the action of gravity, and then the water flow will gather at the bottom of the cabinet, causing the energized electrical components to contact the water and cause damage to the electrical components, thereby affecting the operation of the power grid. Therefore, a water retaining portion is provided on the blade, and a water outlet hole is provided at a position on the blade close to the water retaining portion, so that the water flowing downward under the action of gravity is gathered in the cavity formed between the water retaining portion and the blade, and then discharged to the outside of the cabinet through the water outlet, thereby preventing water from gathering inside the cabinet and causing the electrical components to contact the water, thereby avoiding damage to the electrical components, thereby ensuring the continuous and safe operation of the power grid.

[0025] 3. In the present invention, on rainy days (or rainy season), due to the high humidity of the outside air, the turned-out absorbent cotton cannot dry itself in a natural state, so that the absorbent cotton loses its water absorption function, and the dehumidification component fails. Therefore, an electric heater is arranged in the absorbent cotton, and the high temperature is generated by the electric heater to evaporate the water in the absorbent cotton, and then the absorbent cotton is dried, so that the absorbent cotton maintains its water absorption characteristics, and the dehumidification component can still continue to work in a cycle in continuous rainy weather or when the air humidity is high, thereby increasing the scope of use of the electrical cabinet.

[0026] 4. In the present invention, the outdoor electrical cabinet is directly exposed to the natural environment. In order to prevent rainwater, moisture, flying dust and insects from entering the electrical cabinet and causing damage to the electrical components, rubber strips are arranged on a pair of side walls parallel to the blade and its rotating shaft axis, and sealing strips are arranged on a pair of side walls perpendicular to the blade and its rotating shaft axis. Then, in the process of the No. 1 motor driving the blade to rotate and close, the sealing strips on the pair of side walls perpendicular to the blade and its rotating shaft axis are completely in contact with the cabinet body, thereby achieving sealing between the side walls perpendicular to the blade rotating shaft and the cabinet body. At the same time, the rubber strips on adjacent blades gradually contact and squeeze each other, thereby achieving sealing between the blades. The rubber strips on the two outermost blades parallel to the rotating shaft axis contact and squeeze the cabinet body, thereby achieving sealing between the side walls parallel to the blade rotating shaft and the cabinet body, thereby achieving sealing of the entire cabinet body, thereby improving the sealing effect of the cabinet body, thereby preventing rainwater, moisture, flying dust and insects from entering the cabinet body and causing damage to the electrical components in the cabinet, thereby ensuring the continuous and safe operation of the power grid.

[0027] 5. In the present invention, the screw rod is driven to rotate by the No. 2 motor. Because the screw rod is threadedly connected to the water storage tank, the screw rod drives the water storage tank to move toward the other end of the screw rod, thereby driving the extrusion wheel to move, and then the extrusion wheel squeezes the absorbent cotton, and then the water absorbed by the absorbent cotton is squeezed and dripped into the water storage tank, thereby reducing the amount of water absorbed by the absorbent cotton. When the extrusion wheel completely squeezes the absorbent cotton once, the No. 2 motor is reversed to drive the water storage tank to move in the opposite direction, thereby driving the extrusion wheel to squeeze the absorbent cotton again, further reducing the amount of water absorbed by the absorbent cotton, thereby avoiding the absorbent cotton from saturating and being unable to absorb water, thereby ensuring that the absorbent cotton always has the capacity, and then the cabinet No water will drip from the top surface of the cabinet, thus avoiding damage to electrical components; when the water tank completely leaves the absorbent cotton in the vertical direction, the No. 2 motor continues to reverse, and the water tank continues to move, and then the water tank pushes open the sealing plate, so that the end of the water tank is located outside the cabinet, and then the water baffle plate contacts the gear lever, causing the water baffle plate to rotate, and the No. 2 motor stops rotating, thereby draining the water in the water tank out of the cabinet, and then the motor rotates, driving the water tank to move into the cabinet, the water baffle plate leaves the gear lever, and the water baffle plate is reset under the torsion of the torsion spring. As the water tank continues to move, the baffle plate is reset under the action of the magnet to seal the drain outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] Figure 1 It is a schematic diagram of the overall structure of the electrical cabinet in the present invention;

[0030] Figure 2 is an exploded view of the electrical cabinet of the present invention;

[0031] Figure 3 It is a view of the internal structure of the electrical cabinet in the present invention;

[0032] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0033] Figure 5 It is a structural schematic diagram of the cabinet in the present invention;

[0034] Figure 6 It is a schematic diagram of the arrangement of the dehumidification components in the present invention;

[0035] Figure 7 It is a schematic diagram of the structure of the blade and the water-absorbing cotton in the present invention;

[0036] Figure 8 It is a structural schematic diagram of the cabinet door in the present invention;

[0037] Fig. 9 yes Figure 3 A partial enlarged view of point B in the middle;

[0038] Fig.10 It is a schematic diagram of the structure of the dehumidification component in the present invention when it is opened;

[0039] In the figure: cabinet body 1, drain outlet 11, sealing plate 12, gear lever 13, cabinet door 2, mounting plate 3, mounting seat 31, dehumidification component 4, absorbent cotton 41, blades 42, water retaining part 421, water outlet hole 422, No. 1 motor 43, pulley 44, synchronous belt 45, rotating shaft 46, rubber strip 47, sealing strip 48, electric heater 5, dewatering component 6, No. 2 motor 61, screw 62, water storage tank 63, extrusion wheel 64, support rod 65, water retaining plate 66, and heightening seat 7. DETAILED DESCRIPTION

[0040] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0041] like Figures 1 to 10As shown, an outdoor dehumidification electrical cabinet for a substation comprises a cabinet body 1, a cabinet door 2, a mounting plate 3 and a dehumidification component 4; the cabinet door 2 is arranged on one side wall of the cabinet body 1; one side of the cabinet door 2 is hinged on the cabinet body 1; a mounting plate 3 is arranged on the inner wall of the back side of the cabinet body 1; the mounting plate 3 is fixedly connected to the cabinet body 1 through a connecting rod; the mounting plate 3 is used to install electrical components; the dehumidification component 4 is arranged on the cabinet door 2 and the top surface, back surface and both side surfaces of the cabinet body 1;

[0042] The dehumidification component 4 includes absorbent cotton 41, blades 42, a motor 43, a pulley 44, a synchronous belt 45 and a rotating shaft 46; the blades 42 are evenly spaced; the rotating shafts in the middle of both ends of the blades 42 are rotatably connected to the cabinet 1; the pulleys 44 are fixedly connected to the rotating shafts at both ends of the blades 42, the two ends and the middle of the rotating shaft 46 and the rotating shaft of the motor 43; the synchronous belt 45 drives the pulleys 44 on the rotating shaft of the motor 43 and the pulleys 44 in the middle of the rotating shaft 46, between the pulleys 44 at both ends of the rotating shaft 46 and the pulleys 44 on the rotating shafts at both ends of one of the outermost blades 42, and between the pulleys 44 on the rotating shafts at both ends of two adjacent blades 42; the mounting seat 31 of the motor 43 is fixedly connected to the cabinet 1; the absorbent cotton 41 is fixedly connected to one side of the blade 42.

[0043] When the weather is clear in autumn and winter, due to the increase in the temperature difference between day and night, the air temperature outside the cabinet 1 is lower at night, which makes the cabinet 1 temperature lower. Since the heat generated during the operation of the electrical components inside the electrical cabinet is dissipated to the air inside the cabinet 1, the air temperature inside the cabinet 1 is higher than the air temperature outside the cabinet 1. When the moisture contained in the air inside the cabinet 1 encounters the cabinet 1 with a lower temperature, the moisture in the air liquefies to form condensation and adheres to the inner wall of the cabinet 1, thereby causing problems such as grounding of the secondary circuit of the equipment, which may cause the circuit breaker to malfunction or refuse to operate, and seriously affect the safe operation of the power grid. Therefore, by Water-absorbing cotton 41 is arranged on the top surface, back surface and both side surfaces of the cabinet 1 to absorb the condensation generated on the inner wall of the cabinet 1, thereby preventing the condensation from gathering and dripping on the electrical components to cause short circuit of the electrical components, thereby avoiding affecting the safe operation of the power grid. During the day, as the temperature rises, the temperature difference between the inside and outside of the cabinet 1 decreases, thereby increasing the temperature of the cabinet 1, and no more condensation will be generated. At this time, the water-absorbing cotton 41 that has absorbed the condensation overnight already contains a large amount of moisture. The controller controls the No. 1 motor 43 to rotate, and then drives the rotating shaft 46 to rotate through the pulley 44 and the synchronous belt 45. Because the pulleys 44 at both ends of the rotating shaft 46 are connected to the outermost The pulleys 44 on the rotating shafts at both ends of one of the blades 42 and the pulleys 44 on the rotating shafts at both ends of two adjacent blades 42 are driven by synchronous belts 45, and then the rotating shaft 46 drives the blade 42 to rotate, and then all the blades 42 rotate synchronously, and then the absorbent cotton 41 is reversed to the outside of the cabinet 1. Due to the continuous increase in the external temperature, the wet absorbent cotton 41 is dried, so that the absorbent cotton 41 becomes dry, and then the absorbent cotton 41 can be reused. When night falls, the temperature in the cabinet 1 gradually decreases, the controller controls the motor to reverse, and then drives the rotating shaft 46 to reverse, and then drives the blade 42 to reverse. The water sponge 41 stops rotating after being located in the same plane in the cabinet 1, and then absorbs the condensation generated on the inner wall of the cabinet 1 again at night, thereby reducing corrosion to the metal conductive parts, thereby reducing the probability of short circuit and grounding of the equipment, thereby protecting the electrical components in the cabinet 1, thereby increasing the service life of the electrical components and ensuring the continuous and safe operation of the power grid; at the same time, when the weather is hot, the blades 42 can be rotated to a certain angle, so that the entire cabinet 1 is in an open state, thereby accelerating the heat dissipation of the electrical components in the cabinet 1, thereby reducing the aging of the electrical components caused by high temperature, and thereby increasing the service life of the electrical components.

[0044] like Figure 4 and Figure 7As shown, a water retaining portion 421 is provided on the cabinet door 2 and the back and side surfaces of the cabinet body 1. The water retaining portion 421 is located on one side of the water-absorbing cotton 41 and the water retaining portion 421 is inclined toward the side of the water-absorbing cotton 41. A water outlet hole 422 is provided on the blade 42 at a position close to the water retaining portion 421. The water outlet holes 422 are evenly spaced in the horizontal direction.

[0045] During operation, when the condensation generated on the side wall of the cabinet 1 exceeds the absorbent cotton 41 and reaches its maximum water locking capacity, water flows downward under the action of gravity, and then the water flow will gather at the bottom of the cabinet 1, causing the energized electrical components to contact the water and cause damage to the electrical components, thereby affecting the operation of the power grid. Therefore, a water retaining portion 421 is provided on the blade 42, and a water outlet hole 422 is provided on the blade 42 at a position close to the water retaining portion 421, so that the water flowing downward under the action of gravity is gathered in the cavity formed between the water retaining portion 421 and the blade 42, and then discharged to the outside of the cabinet 1 through the water outlet, thereby preventing water from gathering inside the cabinet 1 and causing the electrical components to contact the water, thereby preventing damage to the electrical components, thereby ensuring the continuous and safe operation of the power grid.

[0046] like Figure 4 , Figure 7 and Fig. 9 As shown, an electric heater 5 is arranged inside the water-absorbing cotton 41 ; the electric heater 5 is used to remove moisture from the water-absorbing cotton 41 .

[0047] During operation, on rainy days (or rainy season), due to the high humidity of the outside air, the turned-out absorbent cotton 41 cannot dry itself in a natural state, so that the absorbent cotton 41 loses its water absorption function, and the dehumidification component 4 fails. Therefore, an electric heater 5 is arranged in the absorbent cotton 41, and the electric heater 5 generates a high temperature to evaporate the water in the absorbent cotton 41, and then the absorbent cotton 41 is dried, so that the absorbent cotton 41 maintains its water absorption characteristics, and the dehumidification component 4 can still continue to work in a cycle in continuous rainy weather or when the air humidity is high, thereby increasing the scope of use of the electrical cabinet.

[0048] like Figure 4 , Figure 7 and Fig. 9 As shown, a pair of side walls of the blade 42 parallel to the axis of the rotating shaft of the blade 42 are provided with rubber strips 47; the rubber strip 47 is fixedly connected to the blade 42; a pair of side walls of the blade 42 perpendicular to the axis of the rotating shaft of the blade 42 are provided with sealing strips 48; the sealing strip 48 is fixedly connected to the blade 42.

[0049] During operation, the outdoor electrical cabinet is directly exposed to the natural environment. In order to prevent rain, moisture, flying dust and insects from entering the electrical cabinet and damaging the electrical components, a rubber strip 47 is provided on a pair of side walls parallel to the axis of the blade 42 and its rotating shaft, and a sealing strip 48 is provided on a pair of side walls perpendicular to the axis of the blade 42 and its rotating shaft. In the process of the first motor 43 driving the blade 42 to rotate and close, the sealing strip 48 on the pair of side walls perpendicular to the axis of the blade 42 and its rotating shaft is completely in contact with the cabinet body 1, thereby achieving the side wall perpendicular to the rotating shaft of the blade 42 and the cabinet body 1. The sealing between the blades 42 is achieved, and at the same time, the rubber strips 47 on the adjacent blades 42 gradually contact and squeeze each other, thereby achieving the sealing between the blades 42 and the blades 42. The rubber strips 47 on the two outermost blades 42 that are parallel to the axis of the rotation shaft contact and squeeze the cabinet 1, thereby achieving the sealing between the side walls parallel to the rotation shaft of the blades 42 and the cabinet 1, thereby achieving the sealing of the entire cabinet 1, thereby improving the sealing effect of the cabinet 1, thereby preventing rainwater, moisture, flying dust and insects from entering the cabinet 1 and causing damage to the electrical components in the cabinet, thereby ensuring the continuous and safe operation of the power grid.

[0050] like Figure 3 , Figure 6 and Fig. 9 As shown, a dehumidification component 6 is arranged below the dehumidification component 4 on the top surface of the cabinet 1; the dehumidification component 6 includes a No. 2 motor 61, a screw rod 62, a water storage tank 63, an extrusion wheel 64, a support rod 65, a water baffle 66 and a magnet; the water storage tank 63 is arranged directly below the dehumidification component 4 on the top surface of the cabinet 1; the screw rod 62 is arranged on both sides of the water storage tank 63; both ends of the screw rod 62 are rotatably connected to the cabinet 1; the water storage tank 63 and the screw rod 62 are connected by threads; the support rod 65 is arranged at intervals at one end of the water storage tank 63 close to the dehumidification component 4; one end of the support rod 65 is fixedly connected to the water storage tank 63; the other end of the support rod 65 is rotatably connected to the extrusion wheel 64 ; One end of the screw rod 62 is fixedly connected to the rotating shaft of the No. 2 motor 61; the mounting seat 31 of the No. 2 motor 61 is fixedly connected to the cabinet 1; the water baffle 66 is arranged on the other end surface of the water storage tank 63; the middle part of the water baffle 66 is rotatably connected to the side wall of the water storage tank 63; a torsion spring is arranged between the water baffle 66 and the side wall of the water storage tank 63; a drain outlet 11 is arranged on the cabinet 1 at a position corresponding to the water baffle 66; a sealing plate 12 is arranged in the drain outlet 11; the sealing plate 12 is hinged on the cabinet 1; the magnet is fixedly connected to the sealing plate 12; a gear lever 13 is arranged at the drain outlet 11; the gear lever 13 is fixedly connected to the cabinet 1.

[0051] During operation, after the absorbent cotton 41 on the top surface of the cabinet 1 absorbs condensation on the inner wall of the cabinet top, when the adsorption force of the absorbent cotton 41 on water is less than the gravity exerted on the water, water flows out of the absorbent cotton 41 and drips onto the electrical components under the action of gravity, which can easily cause damage to the electrical components. Therefore, the No. 2 motor 61 drives the screw rod 62 to rotate. Because the screw rod 62 and the water storage tank 63 are threadedly connected, the screw rod 62 drives the water storage tank 63 to move toward the other end of the screw rod 62, thereby driving the squeezing wheel 64 to move, and then the squeezing wheel 64 squeezes the absorbent cotton 41, and then squeezes the water absorbed by the absorbent cotton 41 and drips it into the water storage tank 63, thereby reducing the amount of water absorbed by the absorbent cotton 41. When the squeezing wheel 64 completely squeezes the absorbent cotton 41 once, the No. 2 motor 61 reverses and drives the water storage tank 63 to move in the opposite direction, thereby driving the squeezing wheel 64 to squeeze the absorbent cotton 41 again, further reducing the amount of water absorbed by the absorbent cotton 41. The amount of water is prevented from being saturated with water by the water-absorbing cotton 41, thereby ensuring that the water-absorbing cotton 41 always has the capacity, and then no water will drip from the top surface of the cabinet 1, thereby avoiding damage to the electrical components; when the water storage tank 63 completely leaves the bottom of the water-absorbing cotton 41 in the vertical direction, the No. 2 motor 61 continues to reverse, and then the water storage tank 63 continues to move, and then the water storage tank 63 pushes open the sealing plate 12, so that the end of the water storage tank 63 is located outside the cabinet 1, and then the water baffle 66 contacts the gear lever 13, so that the water baffle 66 rotates, and the No. 2 motor 61 stops rotating, so that the water in the water storage tank 63 is discharged to the outside of the cabinet 1, and then the motor rotates, driving the water storage tank 63 to move into the cabinet 1, and the water baffle 66 leaves the gear lever 13. Under the torsion of the torsion spring, the water baffle 66 is reset, and as the water storage tank 63 continues to move, the baffle is reset under the action of the magnet to seal the drain outlet 11.

[0052] like Figure 4 As shown, the electrical component is fixedly connected to the mounting plate 3 via a mounting seat 31; the mounting plate 3 and the mounting seat 31 are both made of heat-conducting material.

[0053] During operation, since the mounting plate 3 and the mounting seat 31 are both made of heat-conducting materials, the heat generated by the electrical components is transferred to the mounting plate 3 through the mounting seat 31, thereby increasing the temperature of the mounting plate 3, and the moisture in the air is evaporated when it contacts the mounting plate 3, thereby avoiding condensation on the mounting plate 3, thereby avoiding the electrical components from contacting water, and thereby avoiding short circuits and damage to the electrical components, thereby ensuring the continuous and safe operation of the power grid.

[0054] like Figure 4 As shown, the outer surface of the mounting plate 3 is covered with a layer of insulating material; an insulating avoidance groove is provided on the side of the mounting plate 3 for mounting electrical components; and the mounting seat 31 is in direct contact with the mounting plate 3 through the insulating avoidance groove.

[0055] During operation, a layer of insulating material is provided on the outer surface of the mounting plate 3, thereby isolating the charged electrical components from the cabinet 1, thereby preventing the electrical components from leaking electricity and transmitting it to the cabinet 1, thereby preventing the cabinet 1 from being charged, thereby preventing the staff or maintenance personnel from getting an electric shock when they touch the box, thereby protecting the safety of the personnel, and at the same time preventing the electrical components from leaking electricity and causing a short circuit through the cabinet 1 to the ground, thereby improving the service life of the electrical components; by providing an insulating avoidance groove, the mounting seat 31 is in direct contact with the mounting plate 3, so that the heat on the electrical components can be quickly transferred to the mounting plate 3, thereby accelerating the evaporation rate of moisture in the air when it contacts the mounting plate 3, thereby avoiding condensation on the mounting plate 3.

[0056] like Figure 1 , Figure 3 , Figure 5 and Fig.10 As shown, a heightened seat 7 is provided below the cabinet 1; the heightened seat 7 is filled with heat-insulating material.

[0057] During operation, a heightening seat 7 is provided under the cabinet 1, thereby preventing the bottom surface of the cabinet 1 from directly contacting the ground or the cable trench. In addition, because the heightening seat 7 is filled with insulation material, the bottom surface of the cabinet 1 is insulated, so that the temperature of the bottom surface of the cabinet 1 is basically consistent with the air temperature in the cabinet 1, thereby preventing the formation of condensation due to a large difference between the bottom surface temperature of the cabinet 1 and the air temperature in the cabinet 1. At the same time, it reduces the cold and humid air on the ground or in the cable trench from entering the cabinet 1 through the cable hole at the bottom of the cabinet 1, thereby reducing the humidity of the air in the cabinet 1, and thus reducing the condensation in the cabinet 1.

[0058] During operation, absorbent cotton 41 is arranged on the top, back and both side surfaces of the cabinet door 2 and the cabinet body 1 to absorb the condensation generated on the inner wall of the cabinet body 1, thereby preventing the condensation from gathering and dripping on the electrical components to cause short circuit of the electrical components, thereby avoiding affecting the safe operation of the power grid. During the day, as the temperature rises, the temperature difference between the inside and outside of the cabinet body 1 decreases, thereby increasing the temperature of the cabinet body 1, and no more condensation will be generated. At this time, the absorbent cotton 41 that has absorbed the condensation overnight already contains a large amount of moisture. The controller controls the No. 1 motor 43 to rotate, and then drives the rotating shaft 46 to rotate through the pulley 44 and the synchronous belt 45. Because the pulleys 44 at both ends of the rotating shaft 46 and the pulleys 44 on the rotating shaft at both ends of one of the outermost blades 42 and the pulleys 44 on the rotating shaft at both ends of the two adjacent blades 42 are all driven by the synchronous belt 45, the rotating shaft 46 drives the blade 42 to rotate, and then all the blades 42 rotate synchronously, thereby reversing the absorbent cotton 41 to the outside of the cabinet body 1 As the outside temperature continues to rise, the wet absorbent cotton 41 is dried and made to be reused. When night falls, the temperature in the cabinet 1 gradually decreases, and the controller controls the motor to reverse, thereby driving the rotating shaft 46 to reverse, and then driving the blades 42 to reverse. When the absorbent cotton 41 is located in the same plane in the cabinet 1, it stops rotating, and then absorbs the condensation generated on the inner wall of the cabinet 1 again at night, thereby reducing corrosion to the metal conductive parts, thereby reducing the probability of short circuit and grounding of the equipment, thereby protecting the electrical components in the cabinet 1, thereby increasing the service life of the electrical components and ensuring the continuous and safe operation of the power grid; at the same time, when the weather is relatively hot, the blades 42 can be rotated by a certain angle, so that the entire cabinet 1 is in an open state, thereby accelerating the heat dissipation of the electrical components in the cabinet 1, thereby reducing the aging of the electrical components caused by high temperature, and thereby increasing the service life of the electrical components.

[0059] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A substation outdoor dehumidification electrical cabinet, characterized in that: The cabinet comprises a cabinet body (1), a cabinet door (2), a mounting plate (3) and a dehumidification component (4); the cabinet door (2) is arranged on one side wall of the cabinet body (1); one side of the cabinet door (2) is hinged on the cabinet body (1); a mounting plate (3) is arranged on the inner wall of the back side of the cabinet body (1); the mounting plate (3) is fixedly connected to the cabinet body (1) via a connecting rod; the mounting plate (3) is used for mounting electrical components; the dehumidification component (4) is arranged on the cabinet door (2) and the top surface, back surface and both side surfaces of the cabinet body (1); The dehumidification component (4) comprises absorbent cotton (41), blades (42), a first motor (43), a pulley (44), a synchronous belt (45) and a rotating shaft (46); the blades (42) are evenly spaced; the rotating shafts at the middle of both ends of the blades (42) are rotatably connected to the cabinet (1); the pulleys (44) are fixedly connected to the rotating shafts at both ends of the blades (42), both ends and the middle of the rotating shaft (46) and the rotating shaft of the first motor (43); the pulleys (44) on the rotating shaft of the first motor (43) are The synchronous belt (45) is used to transmit the power between the pulley (44) in the middle of the rotating shaft (46), between the pulleys (44) at both ends of the rotating shaft (46) and the pulleys (44) on the rotating shaft at both ends of one of the outermost blades (42), and between the pulleys (44) on the rotating shaft at both ends of two adjacent blades (42); the mounting seat (31) of the first motor (43) is fixedly connected to the cabinet (1); the absorbent cotton (41) is fixedly connected to one side of the blade (42); A dehumidification component (6) is arranged below the dehumidification component (4) on the top surface of the cabinet (1); the dehumidification component (6) comprises a second motor (61), a screw rod (62), a water storage tank (63), an extrusion wheel (64), a support rod (65), a water baffle (66) and a magnet; the water storage tank (63) is arranged directly below the dehumidification component (4) on the top surface of the cabinet (1); the screw rod (62) is arranged on both sides of the water storage tank (63); both ends of the screw rod (62) are rotatably connected to the cabinet (1); the water storage tank (63) and the screw rod (62) are connected by threads; the support rod (65) is arranged at intervals near one end of the water storage tank (63) near the dehumidification component (4); one end of the support rod (65) is fixedly connected to the water storage tank (63); the other end of the support rod (65) is rotatably connected to the extrusion wheel (64); 4); one end of the screw rod (62) is fixedly connected to the rotating shaft of the second motor (61); the mounting seat (31) of the second motor (61) is fixedly connected to the cabinet (1); the water baffle (66) is arranged on the other end surface of the water storage tank (63); the middle part of the water baffle (66) is rotatably connected to the side wall of the water storage tank (63); a torsion spring is arranged between the water baffle (66) and the side wall of the water storage tank (63); a drain outlet (11) is arranged on the cabinet (1) at a position corresponding to the water baffle (66); a sealing plate (12) is arranged in the drain outlet (11); the sealing plate (12) is hinged to the cabinet (1); the magnet is fixedly connected to the sealing plate (12); a gear lever (13) is arranged at the drain outlet (11); the gear lever (13) is fixedly connected to the cabinet (1); When the water tank (63) completely leaves the lower part of the absorbent cotton (41) in the vertical direction, the second motor (61) continues to reverse, and the water tank (63) continues to move. Then, the water tank (63) pushes the sealing plate (12) open, so that the end of the water tank (63) is located outside the cabinet (1). Then, the water baffle plate (66) contacts the gear lever (13), so that the water baffle plate (66) rotates, and the second motor (61) stops rotating, so that the water in the water tank (63) is discharged outside the cabinet (1).

2. The outdoor dehumidification electrical cabinet for a substation according to claim 1, characterized in that: A water retaining portion (421) is provided on the cabinet door (2) and on the back and side surfaces of the cabinet body (1); the water retaining portion (421) is located on one side of the water-absorbing cotton (41) and the water retaining portion (421) is inclined toward the side of the water-absorbing cotton (41); a water outlet hole (422) is provided on the blade (42) at a position close to the water retaining portion (421); and the water outlet holes (422) are evenly spaced in a horizontal direction.

3. The outdoor dehumidification electrical cabinet for a substation according to claim 2, characterized in that: An electric heater (5) is arranged inside the water-absorbing cotton (41); the electric heater (5) is used to remove moisture from the water-absorbing cotton (41).

4. The outdoor dehumidification electrical cabinet for a substation according to claim 3, characterized in that: A pair of side walls of the blade (42) parallel to the axis of the rotation shaft of the blade (42) are each provided with a rubber strip (47); the rubber strip (47) is fixedly connected to the blade (42); a pair of side walls of the blade (42) perpendicular to the axis of the rotation shaft of the blade (42) are each provided with a sealing strip (48); the sealing strip (48) is fixedly connected to the blade (42).

5. The outdoor dehumidification electrical cabinet for a substation according to claim 4, characterized in that: The electrical component is fixedly connected to the mounting plate (3) via a mounting seat (31); the mounting plate (3) and the mounting seat (31) are both made of heat-conducting material.

6. The outdoor dehumidification electrical cabinet for a substation according to claim 5, characterized in that: The outer surface of the mounting plate (3) is covered with a layer of insulating material; an insulating avoidance groove is provided on one side of the mounting plate (3) for mounting electrical components; and the mounting seat (31) is in direct contact with the mounting plate (3) via the insulating avoidance groove.

7. The outdoor dehumidification electrical cabinet for a substation according to claim 6, characterized in that: A heightened seat (7) is provided below the cabinet (1); the heightened seat (7) is filled with heat-insulating material.

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