CN106253073A - Outdoor cabinet type transformer station self-powered ventilation damp-proof device - Google Patents

Abstract

Outdoor box-type substation self-powered ventilation and moisture-proof device, including an outer box and an inner box, a connecting block is provided between the inner wall of the outer box and the outer wall of the inner box, the outer louvers are arranged on the side of the outer box, and the inner box There are inner louvers on the side, and an air dryer is installed on the inner wall of the inner box at the inner louvers; the top of the outer box is equipped with a support, a battery, a voltage stabilizer, a solar photovoltaic panel, the first exhaust fan and the second exhaust fan , the first exhaust fan is connected with the first exhaust pipe extending into the upper part of the inner box, and the second exhaust fan is connected with the second exhaust pipe extending into the lower part of the inner box; between the lower surface of the solar photovoltaic panel and the outer box There is an electric support adjustment mechanism between them. The invention can automatically adjust the inclination angle of the solar photovoltaic panel according to the angle of the sun, and fully improve the photoelectric conversion rate. The electric energy generated by the solar photovoltaic panel can cool down and dehumidify the inside of the transformer box. The device supplies power to the national grid, fully saving and utilizing energy.

Description

Self-powered ventilation and moisture-proof device for outdoor box-type substation

technical field

The invention belongs to the field of electric power technology, and in particular relates to a self-powered ventilation and moisture-proof device for an outdoor box-type substation.

Background technique

For the power grid, safety and stability are the basic requirements for its normal operation. As an indispensable element in the power supply system, power supply equipment, its operating status directly affects the stability and safety of the power system. Once a failure occurs, it will affect the user's Normal power supply will cause huge economic losses, and in severe cases, it may cause vicious accidents such as grid collapse and large-scale power outages.

The outdoor box-type substation is the box of the place where the voltage and current of electric energy are transformed, concentrated and distributed in the power system. In order to ensure the quality of electric energy and the safety of equipment, voltage adjustment, power flow (flow direction and distribution of voltage, current and power in each node and branch in the power system) control and power transmission and distribution lines and Protection of major electrical equipment.

Since the outdoor box-type substation is generally installed outdoors, the components in the outdoor box-type substation have a large calorific value, which will affect the service life of the components. , the air is humid, which will cause a greater safety hazard in the transformer box.

Contents of the invention

In order to solve the deficiencies in the prior art, the present invention provides an outdoor box-type substation in which a solar photovoltaic panel with an adjustable inclination is installed on the top of the transformer box, and the electric energy generated by the solar photovoltaic panel is used for moisture-proof and cooling inside the transformer box. Self-powered ventilation and moisture protection device.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical scheme: the outdoor box-type substation self-powered ventilation and moisture-proof device includes a base plate, and the base plate is provided with an outer box and an inner box in the shape of a cuboid, the outer box and the inner box The front side of the body is open, and a heat insulation cavity is formed between the inner wall of the outer box and the outer wall of the inner box. Several connecting blocks are evenly arranged between the inner wall of the box body and the outer wall of the inner box body, and a double-layer structure door is arranged on the front side of the outer box body, and the door is filled with heat-insulating materials. Sealing strips are provided between the edges of the sides, an outer louver is provided at the left middle part and right middle part of the outer box respectively, and an inner shutter is provided at the upper left part, the lower left part, the upper right part and the lower right part of the inner box body. Shutters, the inner wall of the inner box is equipped with an air dryer at each inner louver; the top of the outer box is equipped with a support, a battery, a voltage stabilizer, a solar photovoltaic panel, a first exhaust fan and a second exhaust fan, The air outlet of the first exhaust fan is connected with the first air exhaust pipe, and the first air exhaust pipe extends downward through the outer box body and the inner box body and extends into the upper part of the inner box body, and the air outlet of the second exhaust fan is connected with the first air exhaust pipe. Two exhaust ducts, the second exhaust duct passes through the outer box body and the inner box body and extends into the lower part of the inner box body along the rear side wall of the inner box body;

The support is set on the left side of the top of the outer box, the left edge of the solar photovoltaic panel is connected to the support by hinge rotation, and an electric support adjustment mechanism is provided between the right side of the lower surface of the solar photovoltaic panel and the right side of the top of the outer box;

The solar photovoltaic panel is connected to the battery through a voltage stabilizer, and the battery is respectively connected to the electric support adjustment mechanism, the first exhaust fan and the second exhaust fan through the power supply line;

The electric support adjustment mechanism includes a support, connecting ears, connecting plates, supporting rods, square tubes, pressure bearings, screw rods, driving gears, driven gears and driving motors. The connecting ears are fixed on the right side of the lower surface of the solar photovoltaic panel, and connected The plate is hinged on the connecting ear, and the upper end of the support rod is fixedly connected with the connecting plate; the support is fixed on the right side of the top of the outer box, and the left side of the square tube is provided with a support block, which is hinged on the top of the support. The prism-shaped guide post, the lower end of the support rod is fixedly connected with the upper end of the guide post in the same axial direction, the lower side of the square tube is fixedly connected with the support frame, the drive motor is fixed on the support frame, the main shaft of the drive motor is parallel to the support rod, and the lower end of the guide post There is a groove at the bottom, the pressure bearing is set in the groove and the outer ring of the pressure bearing is in interference fit with the inner wall of the groove. The screw rod and the support rod have the same center line. The upper part of the screw rod is a polished rod structure. It enters into the inner ring of the pressure bearing and has an interference fit with the inner ring of the pressure bearing. The lower end of the guide post is provided with a gland for limiting the position of the pressure bearing. Extended into and threaded into the threaded hole, the driving gear is coaxially fixed on the main shaft of the drive motor, the driving gear meshes with the driven gear, and a limit block is provided on the support frame, and the limit block faces the side of the driven gear A limiting groove corresponding to the thickness of the driven gear is provided, and one side of the driven gear extends into the limiting groove.

The inner wall of the top of the inner box is horizontally equipped with an upper air duct, and the two ends of the upper air duct are blocked. The lower part of the upper air duct is evenly provided with a row of upper air inlets along the length direction, and the lower end of the first exhaust duct is connected to the upper part of the upper air duct. .

The inner wall of the bottom of the inner box is horizontally equipped with a lower air duct, both ends of the lower air duct are blocked, and a row of lower air inlets is evenly arranged on the upper part of the lower air duct along the length direction. connected.

The air dryer comprises a rectangular parallelepiped frame, the area of the frame is larger than that of the inner louver, the front side of the frame is open, and a net pocket filled with quicklime is arranged inside the frame.

A flexible shield is arranged between the front side, the rear side and the right side of the solar photovoltaic panel and the top of the outer box.

An upper reinforcing rib is arranged between the upper part of the supporting rod and the connecting plate, and a lower reinforcing rib is arranged between the lower part of the supporting rod and the upper end surface of the guide post.

With the above technical solution, the components installed in the inner box are all existing mature technologies, and the specific installation position is not mentioned. In addition, an inverter can be installed in the inner box, and the solar photovoltaic panel converts light energy into electrical energy It is sent to the battery for storage through the voltage stabilizer. When the battery is full, the excess power is sent to the national grid through the inverter. The storage battery in the present invention mainly supplies power for the first exhaust fan, the second exhaust fan and the drive motor.

When it is necessary to adjust the inclination angle of the solar photovoltaic panel to adapt to the vertical irradiation of the sun's rays as much as possible, start the driving motor, the main shaft of the driving motor drives the driving gear to rotate, and when the driving gear rotates, it drives the driven gear to rotate. Under the limitation of the limit groove on the limit block, with the rotation of the driven gear, the screw rod is driven to move up or down, and the screw rod drives the guide post to move up or down through the pressure bearing, and the support rod at the upper end of the guide post also moves As the guide post moves, the solar photovoltaic panel will rotate with the hinge on the support as the fulcrum, so that the inclination angle of the solar photovoltaic panel can be changed. The driving motor itself has a self-locking function. It will drive the screw to rotate. Therefore, after the inclination angle of the solar photovoltaic panel is adjusted, it will be very stable.

The flexible shield plays the role of sheltering from wind and rain, prolonging the service life of the top of the outer box and the parts and equipment below the solar photovoltaic panel.

Because the present invention adopts the double-layer structure of the outer box body and the inner box body, and the double-layer structure of the box door, and fills the heat insulating material in the box door, it plays a good heat insulation effect like this. Under this condition, the temperature in the inner box will not increase too much. If the temperature of the inner box is high, the first exhaust fan and the second exhaust fan are turned on, and the first exhaust fan blows the hot air on the upper part of the inner box outward through the first exhaust pipe and the upper air inlet on the upper air distribution pipe. The second exhaust fan draws the hot air in the lower part of the inner box outward through the second exhaust pipe and the lower air inlet on the lower distribution air pipe, and the cold air outside the outer box is drawn from the outer louvers, inner louvers and filled with The net bag of quicklime enters the inner box, when the cold air passes through the net bag filled with quicklime, the quicklime absorbs the moisture in the cold air, and the cold air entering the inner box is dry air, so that while cooling down, Play a good role in moisture. When the quicklime in the net bag absorbs more water vapor, the net bag can be taken out from the frame every once in a while and replaced with new quicklime, which can achieve a good drying effect.

The inner box is equipped with four inner louvers, as well as the lower air duct at the bottom of the inner box and the upper air duct at the top of the inner box, so that the incoming cold air can flow more evenly inside the inner box and improve Cooling effect of air convection.

The voltage stabilizer smoothly inputs the electric energy generated by the low-light solar photovoltaic panels into the battery, and provides intelligent protection for the battery from overcharging, overcurrent, and short circuit. power supply to protect the battery. The battery is a lithium cobalt oxide battery with less self-discharge, superior discharge performance, long life and less heavy metal pollution.

To sum up, the present invention is novel in design and compact in structure, and can automatically adjust the inclination angle of the solar photovoltaic panel according to the angle of sunlight, and fully improve the photoelectric conversion rate. While being self-sufficient, it can also supply power to the national grid through the inverter, fully saving and utilizing energy.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is an enlarged view of the electric support adjustment mechanism in Fig. 1 .

detailed description

As shown in Figure 1 and Figure 2, the self-powered ventilation and moisture-proof device of the outdoor box-type substation of the present invention comprises a base plate 1, and the base plate 1 is provided with an outer box body 2 and an inner box body 3 all in the shape of a cuboid, and the outer box body 2 and the front side of the inner box 3 are all open, and a heat-insulating chamber 4 is formed between the inner wall of the outer box 2 and the outer wall of the inner box 3, and the front side edge of the outer box 2 and the inner box 3 is provided with a For the sealing plate (not shown in the figure) that seals the heat insulation cavity 4, several connecting blocks 5 are uniformly arranged between the inner wall of the outer box body 2 and the outer wall of the inner box body 3 (the connecting blocks 5 serve to strengthen and fix the connection of the inner box Body 3 and outer box 2), the front side of the outer box 2 is provided with a double-layer structure door (not shown in the figure), the door is filled with heat insulating material, the inner wall of the door and the outer box 2 Sealing strips (not shown in the figure) are arranged between the surrounding edges of the front side, an outer louver 6 is respectively provided at the left middle part and right middle part of the outer box body 2, and an outer louver 6 is respectively arranged at the left middle part and the right side middle part of the inner box body 3. The upper part of the side and the lower part of the right side are provided with an inner louver 7, and the inner wall of the inner box 3 is provided with an air dryer at each inner louver 7; the top of the outer box 2 is provided with a support 9, a battery 10, Compressor 11, solar photovoltaic panel 12, first exhaust fan 13 and second exhaust fan 14, the exhaust port of the first exhaust fan 13 is connected with a first exhaust pipe 15, and the first exhaust pipe 15 passes through the outer box downwards Body 2 and inner box body 3 are stretched into inner box body 3 tops behind, and the air outlet of the second exhaust fan 14 is connected with the second air exhaust pipe 16, and the second air exhaust pipe 16 passes through outer box body 2 and inner box body downwards. The rear of the casing 3 extends into the lower part of the inner casing 3 along the rear side wall of the inner casing 3 .

The support 9 is arranged on the left side of the top of the outer box body 2, and the left side edge of the solar photovoltaic panel 12 is connected to the support 9 by a hinge 17. The right side of the lower surface of the solar photovoltaic panel 12 and the right side of the outer box 2 top An electric support adjustment mechanism 18 is provided.

The solar photovoltaic panel 12 is connected to the storage battery 10 through the voltage stabilizer 11, and the storage battery 10 is connected to the electric support adjustment mechanism 18, the first exhaust fan 13 and the second exhaust fan 14 respectively through the power supply line.

The electric support adjustment mechanism 18 includes a bearing 21, a connecting ear 22, a connecting plate 23, a support rod 24, a square pipe 25, a pressure bearing 26, a screw mandrel 27, a driving gear 28, a driven gear 29 and a drive motor 30, and the connecting ear 22 Fixed on the right side of the lower surface of the solar photovoltaic panel 12, the connecting plate 23 is hinged on the connecting ear 22, the upper end of the support rod 24 is fixedly connected to the connecting plate 23; the support 21 is fixed on the right side of the top of the outer box 2, and the square tube 25 is left The side is provided with a support block 31, the support block 31 is hinged on the top of the support 21, and the square tube 25 is slidingly provided with a four-prism-shaped guide post 32, and the lower end of the support rod 24 is fixedly connected with the upper end of the guide post 32 in the same direction. The lower side is fixedly connected with a support frame 33, the drive motor 30 is fixedly arranged on the support frame 33, the main shaft of the drive motor 30 is parallel to the support rod 24, the lower end of the guide post 32 is provided with a groove, and the pressure bearing 26 is located in the groove and The outer ring of the pressure bearing 26 has an interference fit with the inner wall of the groove. The screw rod 27 and the support rod 24 have the same center line. The upper part of the screw rod 27 is a polished rod structure, and the upper end of the screw rod 27 extends into the inner ring of the pressure bearing 26 And with the inner ring of the pressure bearing 26 interference fit, the lower end of the guide post 32 is provided with a gland 34 used to limit the position of the pressure bearing 26, the center hole of the driven gear 29 is provided with a threaded hole that is transparent up and down, and the screw rod 27 extends into the And threaded in the threaded hole, the driving gear 28 is coaxially fixed on the main shaft of the drive motor 30, the driving gear 28 is meshed with the driven gear 29, the support frame 33 is provided with a limit block 35, and the limit block 35 faces One side of the driven gear 29 is provided with a limiting groove 36 corresponding to the thickness of the driven gear 29 , and one side of the driven gear 29 extends into the limiting groove 36 .

Inner box body 3 top inner walls are horizontally provided with upper distribution air duct 48, and upper distribution air duct 48 two ends are blocked, and upper distribution air duct 48 bottom is evenly provided with a row of upper air inlets 49 along the length direction, and the first exhaust duct 15 lower ends are connected to The upper part of the upper distribution duct 48 is connected.

The inner wall of the bottom of the inner box 3 is horizontally provided with a lower distribution duct 50, and the two ends of the lower distribution duct 50 are blocked. It communicates with the upper part of the lower distribution duct 50.

The air dryer includes a rectangular parallelepiped frame 8 whose area is greater than that of the inner louvers 7 , the front side of the frame 8 is open, and a net bag filled with quicklime 52 is provided in the frame 8 .

A flexible shield 53 is provided between the front side, rear side and right side of the solar photovoltaic panel 12 and the top of the outer box 2 .

An upper reinforcing rib 37 is provided between the upper part of the support rod 24 and the connecting plate 23, and a lower reinforcing rib 38 is provided between the lower part of the supporting rod 24 and the upper end surface of the guide column 32, and the upper reinforcing rib 37 and the lower reinforcing rib 38 play a role in strengthening the supporting rod. 24 and the connecting plate 23, the supporting rod 24 and the guide post 32 are connected to provide good support.

The components installed in the inner box 3 are existing mature technologies, and their specific installation positions are not mentioned. In addition, an inverter can be installed in the inner box 3, and the solar photovoltaic panel 12 converts light energy into electrical energy It is delivered to the storage battery 10 through the voltage stabilizer 11 for storage, and when the storage battery 10 is full, the excess electric energy is delivered to the national grid through the inverter. The storage battery 10 in the present invention mainly supplies power for the first exhaust fan 13 , the second exhaust fan 14 and the driving motor 30 .

When it is necessary to adjust the inclination angle of the solar photovoltaic panel 12 to adapt to the vertical irradiation of the sun's rays as much as possible, start the driving motor 30, the main shaft of the driving motor 30 drives the driving gear 28 to rotate, and when the driving gear 28 rotates, it drives the driven gear 29. Rotate, the driven gear 29 is limited by the limit groove 36 on the limit block 35. With the rotation of the driven gear 29, the screw rod 27 is driven to move up or down, and the screw rod drives the guide post 32 through the pressure bearing 26. Moving up or down, the support rod 24 on the upper end of the guide post 32 also moves with the guide post 32, and the solar photovoltaic panel 12 will rotate with the hinge on the support 21 as a fulcrum, so that the inclination angle of the solar photovoltaic panel 12 can be changed , the drive motor 30 itself has a self-locking function, and the guide post 32 cannot rotate, nor can it drive the screw mandrel 27 to rotate. Therefore, after the inclination angle of the solar photovoltaic panel 12 is adjusted, it will be very stable.

Because the present invention adopts the double-layer structure of the outer box body 2 and the inner box body 3, and the double-layer structure of the box door, and fills the heat insulating material in the box door, plays a good heat insulation effect like this, in the summer of high temperature, Under sunlight, the temperature in the inner box body 3 will not increase too much. If the temperature of the inner box body 3 is higher, the first exhaust fan 13 and the second exhaust fan 14 are opened, and the first exhaust fan 13 passes the inner box through the upper air inlet 49 on the first exhaust pipe 15 and the upper distribution air pipe 48. The hot air at the top of the body 3 is drawn outwards, and the second exhaust fan 14 draws the hot air at the bottom of the inner box body 3 outwards through the second air intake pipe 16 and the lower air inlet 51 on the lower cloth air duct 50, and the outer box body 2. The cold air outside enters the inner box body 3 through the outer louvers 6, the inner louvers 7 and the net bag filled with quicklime 52. When the cold air passes through the net bag filled with quicklime 52, the quicklime 52 absorbs the moisture in the cold air , the cold air that enters the inner box body 3 is all dry air, so that it has a good moisture-proof effect while cooling down. After the quicklime 52 in the net bag absorbs more water vapor, the net bag can be taken out from the frame 8 at regular intervals, and new quicklime 52 can be replaced, so that a good drying effect can be played.

The inner box body 3 is provided with four inner louvers 7, and the lower air distribution duct 50 located at the bottom of the inner box body 3 and the upper air distribution duct 48 at the top of the inner box body 3, so that the incoming cold air can be drawn into the inner box body 3 The interior flows more evenly, increasing the cooling effect of air convection.

The voltage stabilizer 11 smoothly inputs the electric energy generated by the low-light solar photovoltaic panel 12 into the battery 10, and provides intelligent protection for the battery 10 from overcharging, overcurrent, and short circuit. 11 will automatically cut off the power supply to the storage battery 10 to protect the storage battery 10. The storage battery 10 is a lithium cobalt oxide battery with less self-discharge, superior discharge performance, long service life and less heavy metal pollution.

This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the present invention. All simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention belong to the protection of the technical solution of the present invention. scope.

Claims (6)

1. The self-powered ventilation and moisture-proof device of outdoor box-type substation is characterized in that it includes a bottom plate, which is equipped with an outer box and an inner box in the shape of a cuboid, and the front sides of the outer box and the inner box are both open. , a heat insulation cavity is formed between the inner wall of the outer box and the outer wall of the inner box, and a sealing plate for sealing the heat insulation cavity is provided between the front edge of the outer box and the inner box, and the inner wall of the outer box and the inner box Several connecting blocks are evenly arranged between the outer walls, and a double-layer structure door is arranged on the front side of the outer box body, and the door is filled with heat-insulating materials. Sealing strip, the left middle part of the outer box and the right middle part are respectively equipped with an outer louver, and the inner box body is equipped with an inner louver on the left upper part, left lower part, right upper part and right lower part, and the inner wall of the inner box body There is an air dryer at each inner louver; the top of the outer box is equipped with a support, a battery, a voltage stabilizer, a solar photovoltaic panel, a first exhaust fan and a second exhaust fan, and the air outlet of the first exhaust fan A first exhaust pipe is connected, and the first exhaust pipe extends downwards through the outer box body and the inner box body and extends into the upper part of the inner box body. The exhaust pipe passes through the outer box and the inner box downwards and extends into the lower part of the inner box along the rear side wall of the inner box; The support is set on the left side of the top of the outer box, the left edge of the solar photovoltaic panel is connected to the support by hinge rotation, and an electric support adjustment mechanism is provided between the right side of the lower surface of the solar photovoltaic panel and the right side of the top of the outer box; The solar photovoltaic panel is connected to the battery through a voltage stabilizer, and the battery is respectively connected to the electric support adjustment mechanism, the first exhaust fan and the second exhaust fan through the power supply line; The electric support adjustment mechanism includes a support, connecting ears, connecting plates, supporting rods, square tubes, pressure bearings, screw rods, driving gears, driven gears and driving motors. The connecting ears are fixed on the right side of the lower surface of the solar photovoltaic panel, and connected The plate is hinged on the connecting ear, and the upper end of the support rod is fixedly connected with the connecting plate; the support is fixed on the right side of the top of the outer box, and the left side of the square tube is provided with a support block, which is hinged on the top of the support. The prism-shaped guide post, the lower end of the support rod is fixedly connected with the upper end of the guide post in the same axial direction, the lower side of the square tube is fixedly connected with the support frame, the drive motor is fixed on the support frame, the main shaft of the drive motor is parallel to the support rod, and the lower end of the guide post There is a groove at the bottom, the pressure bearing is set in the groove and the outer ring of the pressure bearing is in interference fit with the inner wall of the groove. The screw rod and the support rod have the same center line. The upper part of the screw rod is a polished rod structure. It enters into the inner ring of the pressure bearing and has an interference fit with the inner ring of the pressure bearing. The lower end of the guide post is provided with a gland for limiting the position of the pressure bearing. Extended into and threaded into the threaded hole, the driving gear is coaxially fixed on the main shaft of the drive motor, the driving gear meshes with the driven gear, and a limit block is provided on the support frame, and the limit block faces the side of the driven gear A limiting groove corresponding to the thickness of the driven gear is provided, and one side of the driven gear extends into the limiting groove. 2. The outdoor box-type substation self-powered ventilation and moisture-proof device according to claim 1, characterized in that: the inner wall of the top of the inner box is horizontally provided with an upper distribution air duct, both ends of the upper distribution air duct are blocked, and the upper distribution air duct The lower part is uniformly provided with a row of upper air inlets along the length direction, and the lower end of the first exhaust pipe communicates with the upper part of the upper distribution air pipe. 3. The outdoor box-type substation self-powered ventilation and moisture-proof device according to claim 1 or 2, characterized in that: the inner wall of the bottom of the inner box is horizontally provided with a lower air duct, both ends of the lower air duct are blocked, and the lower air duct is sealed. The upper part of the air duct is uniformly provided with a row of lower air inlets along the length direction, and the lower end of the second exhaust duct communicates with the upper part of the lower distribution air duct. 4. The outdoor box-type substation self-powered ventilation and moisture-proof device according to claim 1 or 2, characterized in that: the air dryer includes a rectangular parallelepiped frame, the area of the frame is larger than the area of the inner shutter, and the front side of the frame is open , the frame is provided with a net pocket filled with quicklime. 5. The outdoor box-type substation self-powered ventilation and moisture-proof device according to claim 1 or 2, characterized in that: a flexible protective cover is provided between the front side, back side and right side of the solar photovoltaic panel and the top of the outer box body. cover. 6. The outdoor box-type substation self-powered ventilation and moisture-proof device according to claim 1 or 2, characterized in that: there is an upper rib between the upper part of the support rod and the connecting plate, and an upper rib is provided between the lower part of the support rod and the upper end surface of the guide column. There are lower ribs.