CN109974438A - A kind of efficient dehumidification device of electric power cabinet - Google Patents

Abstract

The invention discloses a high-efficiency dehumidification device for a power cabinet, comprising a power cabinet body, wherein a shutter type drying box device, a connecting drying pipeline device, a drying heat preservation and heat dissipation device and a control mechanism are arranged in the power cabinet body. The louver type drying box device is connected with the shutter through a telescopic rod, and the desiccant bags are alternately distributed on the two mesh frames to adjust the opening and closing of the shutter according to the state of the desiccant. The electric heating wire arranged in the pipeline and the cooperation between the two conical plates are used to dry the desiccant and the air in the power cabinet body. The beneficial effects of the present invention are that the structure is simple and the practicability is strong.

Description

A high-efficiency dehumidifier for power cabinets

technical field technical field

The invention relates to the field of equipment related to power cabinets, in particular to a high-efficiency dehumidification device for power cabinets.

Background technique

The power cabinet is an important facility in the power system, and its safe operation is related to the normal operation of all related equipment. If the power cabinet operates in a humid environment, it will bring hidden dangers to its safety. When the temperature is above 30°C and the relative air humidity is above 80%, it will cause condensation, which will cause corrosion of the terminals of the power equipment and reduce the Short circuit caused by poor insulation performance, resulting in undue power outages and losses, so dehumidification of power cabinets is essential.

In the patent CN201711268137.5-a dehumidification device for a power cabinet, by setting an air dryer, a suction fan and an air guide cover, the air outside the power cabinet is sucked into the air dryer through the suction fan for drying treatment, and after treatment, it is discharged into the power cabinet, and the humid air in the power cabinet is discharged from the power cabinet through the exhaust fan on the air guide cover, which realizes the air circulation in the power cabinet and ensures that the air in the power cabinet is dry; by setting the slot, the inside of the slot is slidingly connected There is a plug board, and the plug board is provided with a desiccant placement hole, and granular desiccant is placed in the desiccant placement hole, which can further dry the air in the power cabinet.

However, the above-mentioned patents require frequent replacement of the desiccant, and for power cabinets installed outdoors, replacing the desiccant one by one will waste a lot of manpower and time.

Contents of the invention

The purpose of the present invention is to design a high-efficiency dehumidification device for power cabinets in order to solve the above problems.

To achieve the above object, the technical solution of the present invention is a high-efficiency dehumidification device for a power cabinet, including a power cabinet body, which is provided with a louvered drying box device, a connecting drying pipeline device, a drying heat preservation and heat dissipation device and Control mechanism, the louver type drying box device is connected with the louvers through telescopic rods, and the desiccant bags interlacedly distributed on the two grids can adjust the opening and closing of the louvers according to the state of the desiccant. The louver type drying box device is connected to the drying The dry pipeline device is connected, and the desiccant and the air in the power cabinet body are dried through the cooperation between the electric heating wire set in the pipeline and the two tapered plates.

The shutter type drying box device includes two circular heat dissipation openings on both side surfaces of the power cabinet body. air fan, two drying boxes are installed above the side surfaces on both sides of the inside of the power cabinet body, the drying boxes are communicated with the circular heat dissipation port, and two fixed mesh plates are installed on both sides of the inner center of the drying box, so Several montmorillonite desiccant bags are installed on the fixed screen plate, the montmorillonite desiccant bags are evenly divided on the fixed screen plate, and the montmorillonite desiccant bags on the two fixed screen plates are staggered. An adjusting shutter device is provided on one side surface of the drying box.

The adjusting louver device includes a louver window on one side surface of the drying box, a louver frame is installed in the louver window, and a plurality of blades are arranged in the louver frame, and the blades are evenly distributed in the louver frame, so Both ends of the blade are provided with rotating short shafts, the rotating short shaft is inserted into the shutter frame, the rotating short shaft is movably connected with the shutter frame, the upper surface of the blade is installed with a waterproof gasket, and the shutter frame is above one side Two tension springs are installed at both ends, and an adjustment rope is installed at the lower end of the tension spring, and the adjustment rope is fixedly connected with one side of the blade. The telescopic end of the miniature electric telescopic rod is fixedly connected with the adjusting rope.

The connecting drying pipeline device includes a drying square pipe installed on the lower surface of the power cabinet body, vertical drying pipes are installed at both ends of the drying square pipe, and the two vertical drying pipes are respectively connected with the two vertical drying pipes. The lower ends of each drying box are fixedly connected, a dehumidification pipe is installed at the center of the upper surface of the drying square pipe, a conical closing plate is installed at the upper end of the inside of the dehumidification pipe, and a small bracket is installed inside the conical closing plate. A conical cover plate is installed on the small bracket, and two spiral electric heating wires are installed on both sides of the inner center of the drying square tube.

The drying, heat preservation and heat dissipation device includes a heat dissipation port on the lower surface of the power cabinet body, the heat dissipation port corresponds to the position of the drying square tube, and a heat sink is installed inside the heat dissipation port. The lower surface of the drying square tube is connected, a square sealing baffle is arranged above the drying square tube, the rear end of the square sealing baffle is fixedly connected with the power cabinet body, and the square sealing baffle is located under the drying box , the front end of the square sealing baffle is provided with a rubber gasket, the square sealing baffle is movably connected with the dehumidification pipe and the vertical drying pipe, and an insulating material is arranged under the square sealing baffle, and the insulating material is filled with a square sealing space under the baffle.

An air humidity sensor is installed at the center of the inner upper surface of the power cabinet body.

The drying square pipe is in the shape of a big V.

The tip of the conical closing plate is downward, and the tip of the conical cover plate is upward.

A high-efficiency dehumidification device for a power cabinet made by using the technical solution of the present invention, in this device, when the smectite desiccant bag is in a dry state, the blades are in an open state at this time, and the air flow inside the power cabinet body is carried out. Dissipate heat, and at the same time dry through the montmorillonite desiccant bag, so as to ensure that the power cabinet is in a dry state. When the montmorillonite desiccant bag is in a wet state, by adjusting the blades to the closed state, heating the spiral electric heating wire, The operation of the exhaust fan can flush the montmorillonite desiccant bag with high-temperature air, and re-dry the montmorillonite desiccant bag for reuse. The device has a simple structure and is easy to operate.

Description of drawings

1 is a schematic structural diagram of a high-efficiency dehumidification device for a power cabinet according to the present invention;

Fig. 2 is the schematic diagram of louver type drying box device of the present invention;

Fig. 3 is the schematic diagram of blade described in the present invention;

Fig. 4 is the schematic diagram of the fixed screen plate of the present invention;

Fig. 5 is a schematic diagram of a square sealing baffle according to the present invention;

Fig. 6 is the schematic diagram of the conical closing plate of the present invention;

In the figure, 1. Power cabinet body; 2. Control mechanism; 3. Circular cooling vent; 4. Circular dust cover; 5. Exhaust fan; 6. Drying box; 7. Fixed mesh plate; 8. Montmorillonization Stone desiccant bag; 9, shutter window; 10, shutter frame; 11, blade; 12, rotating short shaft; 13, waterproof gasket; 14, extension spring; 15, adjusting rope; 16, miniature electric telescopic rod; 17 , drying square pipe; 18, vertical drying pipe; 19, dehumidification pipe; 20, conical closing plate; 21, small bracket; 22, conical cover plate; 23, spiral electric heating wire; 24, cooling port; 25 , heat sink; 26, square sealing baffle; 27, rubber gasket; 28, thermal insulation material; 29, air humidity sensor.

Detailed ways

The present invention will be specifically described below in conjunction with the accompanying drawings, as shown in Figures 1-6, in this embodiment:

In this device, by connecting the device with an external power source to supply power, and connecting the control mechanism 2 with the exhaust fan 5, the miniature electric telescopic rod 16, the spiral electric heating wire 23 and the air humidity sensor 29, the operation of the device is controlled;

This device is divided into dry state mode and desiccant drying mode:

When the desiccant is in the dry state mode, when the external air is circulating at this time, the air passes through the circular dust cover 4 on the circular heat dissipation port 3 for preliminary dust removal, then enters the drying box 6, and passes through two fixed nets The staggered distribution of the montmorillonite desiccant bags 8 on the board 7 allows the air to pass through the gaps between the montmorillonite desiccant bags 8 into the drying box 6, and when the air passes through the drying box 6, the air The moisture in the air absorbs the moisture in the air by contacting with the montmorillonite desiccant bag 8, and then the dried air enters the inside of the power cabinet body 1 through the gap between the blades 11 in the louver frame 10, thereby passing through The gap between the blades 11 in the louver frame 10 on the other side of the drying box 6 enters the other side of the drying box 6, and then the air is discharged through the other side of the circular heat dissipation port 3, thereby generating electricity. Heat dissipation inside the cabinet body 1;

The montmorillonite desiccant bag 8 absorbs the moisture in the air by contacting with the air for a long time. When the water absorbed by the montmorillonite desiccant bag 8 becomes saturated, the moisture in the air begins to enter the power cabinet body 1. The air humidity sensor 29 detects the air humidity in the power cabinet body 1. When the air humidity inside the power cabinet body 1 reaches the set value, the device enters the desiccant drying mode at this time;

When the device enters the desiccant drying mode, the micro electric telescopic rod 16 is first controlled to start extending, and the micro electric telescopic rod 16 is extended to make the adjustment rope 15 in a relaxed state, and at the same time, the adjustment rope 15 is under the action of the tension spring 14 Begin to move upwards, with the upward movement of the adjusting rope 15, the blade 11 is brought into contact with one side, so that the shutter frame 10 is shielded, and sealed by the waterproof gasket 13, thereby ensuring that the air permeability of the shutter frame 10 is reduced to the minimum;

At this time, the spiral electric heating wire 23 is first controlled to start heating, and the exhaust fan 5 on one side is controlled to start working, and the exhaust fan 5 is connected by the drying square tube 17, two vertical drying tubes 18 and the dehumidification tube 19, thereby Start to pump air to the inside of the power cabinet body 1 and the circular heat dissipation port 3 on the other side, the air enters the drying square tube 17 through the vertical drying pipe 18 and the dehumidification pipe 19, and is heated by the spiral electric heating wire 23, so that The temperature of the air rises, and the moisture in the air is evaporated at the same time, and the evaporated moisture enters the drying box 6 on one side along with the flow of the air, and is continuously blown to the montmorillonite desiccant bag 8 by high-temperature air, thereby desiccating the montmorillonite The moisture in the stone-removing desiccant bag 8 evaporates, and is discharged from the exhaust fan 5 along with the flow of air;

After the exhaust fan 5 on one side works for a certain period of time, the exhaust fan 5 on the other side is controlled to work, so that the montmorillonite desiccant bag 8 in the drying box 6 on the other side is dried by the same structure At this time, control the contraction 16 of the miniature electric telescopic rod to open the blade 11 to perform dehumidification in the power cabinet body 1 again;

In this device, the drying square tube 17 is set in a large V shape, which can effectively facilitate the discharge of water in the air after evaporation, and prevent the water from remaining inside the device; at the same time, the spiral electric heating can be effectively guaranteed through the insulation material and heat sink. When the wire 23 is heated, no condensation will be produced on the upper surface of the square sealing baffle plate 26, thereby ensuring the drying inside the power cabinet body 1; Effectively reduce water vapor rising along the dehumidification pipe 19 and returning to the inside of the power cabinet body 1 .

The above-mentioned technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention, and some changes that those skilled in the art may make to certain parts reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims (8)

1. A high-efficiency dehumidification device for a power cabinet, comprising a power cabinet body (1), characterized in that the power cabinet body (1) is equipped with a louvered drying box device, a connecting drying pipeline device and a drying heat preservation and heat dissipation device device and control mechanism (2), the louver-type drying box device is connected to the louvers through telescopic rods, and the desiccant bags are interlacedly distributed on the two grids to adjust the opening and closing of the louvers according to the state of the desiccant. The louver-type drying The box device is connected with the connecting drying pipeline device, and the desiccant and the air in the power cabinet body are dried through the cooperation between the electric heating wire arranged in the pipeline and the two tapered plates. 2 . The high-efficiency dehumidification device for a power cabinet according to claim 1 , wherein the louver-type drying box device comprises two circular radiators on both side surfaces of the power cabinet body ( 1 ). 3 . A circular dust cover (4) is installed inside the circular heat dissipation port (3), an air extraction fan (5) is installed outside the circular heat dissipation port (3), and the power cabinet body (1) Two drying boxes (6) are installed above the side surfaces on both sides of the interior, the drying boxes (6) are communicated with the circular heat dissipation port (3), and two sides of the inner center of the drying box (6) are installed; Two fixed mesh plates (7), a plurality of smectite desiccant bags (8) are installed on the fixed mesh plates (7), and the smectite desiccant bags (8) are evenly divided into the fixed mesh plates ( 7), the smectite desiccant bags (8) on the two fixed mesh plates (7) are staggered, and an adjusting shutter device is provided on one side surface of the drying box (6). 3 . The high-efficiency dehumidification device for a power cabinet according to claim 2 , wherein the adjusting shutter device comprises a shutter window ( 9 ) on one side surface of the drying box ( 6 ), and the A shutter frame (10) is installed in the shutter window (9), a plurality of blades (11) are arranged in the shutter frame (10), the blades (11) are evenly distributed in the shutter frame (10), and the blades ( 11) A rotating short shaft (12) is installed at both ends, the rotating short shaft (12) is inserted into the shutter frame (10), the rotating short shaft (12) is movably connected with the shutter frame (10), and the blades (11) A waterproof gasket (13) is installed on the upper surface, two tension springs (14) are installed on both ends of one side of the shutter frame (10), and an adjusting rope is installed at the lower end of the tension spring (14). (15), the adjusting rope (15) is fixedly connected to one side of the blade (11), and two miniature electric telescopic rods (16) are installed at both ends of one side of the shutter frame (10). The telescopic end of the rod (16) is fixedly connected with the adjusting rope (15). 4. A high-efficiency dehumidification device for power cabinets according to claim 1, characterized in that, the connected drying pipeline device includes a drying square tube (17) installed on the inner lower surface of the power cabinet body (1) ), the two ends of the drying square pipe (17) are equipped with vertical drying pipes (18), and the two vertical drying pipes (18) are respectively fixedly connected with the lower ends of the two drying boxes (6). A dehumidification pipe (19) is installed at the center of the upper surface of the drying square pipe (17), and a conical closing plate (20) is installed on the inner upper end of the dehumidifying pipe (19), and a conical closing plate (20) is installed inside A small bracket (21), on which a conical cover plate (22) is installed, and two spiral electric heating wires (23) are installed on both sides of the inner center of the drying square tube (17). 5. A high-efficiency dehumidification device for a power cabinet according to claim 1, characterized in that, the drying, heat-preservation and heat dissipation device includes a cooling port (24) on the lower surface of the power cabinet body (1), so that The heat dissipation port (24) corresponds to the position of the drying square pipe (17), and the heat dissipation port (24) is equipped with a heat dissipation fin (25) inside, and the heat dissipation fin (25) and the drying square pipe (17) The lower surface of the drying square tube (17) is provided with a square sealing baffle (26), and the rear end of the square sealing baffle (26) is fixedly connected with the power cabinet body (1). The square sealing baffle (26) is located below the drying box (6), and the front end of the square sealing baffle (26) is provided with a rubber gasket (27), and the square sealing baffle (26) is connected with the dehumidification pipe (19) and The vertical drying pipe (18) is movably connected, and an insulating material (28) is provided under the square sealing baffle (26), and the insulating material (28) fills the space under the square sealing baffle (26). 6 . The high-efficiency dehumidification device for a power cabinet according to claim 1 , wherein an air humidity sensor ( 29 ) is installed at the center of the upper surface of the power cabinet body ( 1 ). 7 . 7. The high-efficiency dehumidification device for electric power cabinets according to claim 4, characterized in that, the drying square pipe (17) is in the shape of a large V. 8 . The high-efficiency dehumidification device for a power cabinet according to claim 4 , wherein the tip of the conical closing plate ( 20 ) is downward, and the tip of the conical cover plate ( 22 ) is upward. 9 .