CN220021954U - An intelligent dehumidification device for closed electrical cabinets - Google Patents

Abstract

An intelligent dehumidification device for a closed electrical cabinet, including a dehumidification box. The dehumidification box is provided with a partition. The dehumidification box is divided into a cooling chamber and a heating chamber by the partition. The lower end of the cooling chamber is connected with the lower end of the heating chamber. The dehumidification box is connected with a The air intake pipe and the exhaust pipe have a fan installed on one side of the exhaust pipe, a semiconductor refrigeration fin installed in the dehumidification box on one side of the cooling cavity, and a first radiator and a second radiator are respectively connected to both sides of the semiconductor refrigeration fin. The first radiator is arranged in the cooling cavity, and the second radiator is located outside the dehumidification box. A drainage pipe is connected to the bottom of the cooling cavity. An input button, a temperature and humidity sensor and an LCD are installed on the dehumidification box. The input button and temperature and humidity sensor are installed on the dehumidification box. Connect the input terminal of the controller, and connect the semiconductor refrigeration piece, fan and LCD display to the output terminal of the controller. The utility model is used to solve the problem that condensation is easily formed when heating and dehumidifying existing electrical cabinets, making the electrical equipment or components in the cabinet susceptible to moisture.

Description

An intelligent dehumidification device for closed electrical cabinets

Technical field

The utility model relates to an intelligent dehumidification device for a closed electrical cabinet.

Background technique

In order to ensure the safe and reliable operation of various high and low voltage switch cabinets, electrical cabinets and other equipment and extend their service life, the environmental humidity inside the equipment must be controlled to avoid excessive humidity causing electrical components to rust or mildew, which will greatly reduce the equipment's service life. performance and shorten the service life. In severe cases, the electrical components may become damp and cause electrical breakdown accidents, which may lead to greater accidents in the switchgear. The current dehumidification method is to use a controller with a heater to solve the problem of excessive humidity in the switch cabinet. During the rainy season or after the ambient humidity increases, the humidity controller will start the heating plate to heat the cabinet. When the heating plate After shutdown, the hot steam rises and cools and condenses on the inner wall around the cabinet or on the electrical equipment, but the moisture still remains inside the cabinet. This will make the electrical equipment or components in the cabinet more susceptible to moisture, which is not conducive to the maintenance of the switchgear. Safe operation, while raising the temperature and shortening its service life.

Utility model content

The technical problem to be solved by this utility model is to provide an intelligent dehumidification device for a closed electrical cabinet, which is used to solve the problem that condensation is easily formed in existing electrical cabinets when heated and dehumidified, making the electrical equipment or components in the cabinet susceptible to moisture.

In order to solve the above problems, the technical solution of the present invention is:

An intelligent dehumidification device for a closed electrical cabinet, including a dehumidification box. The dehumidification box is provided with a partition. The dehumidification box is divided into a cooling chamber and a heating chamber by the partition. The lower end of the cooling chamber is connected with the lower end of the heating chamber. The dehumidification box is connected with a The air intake pipe and the exhaust pipe have a fan installed on one side of the exhaust pipe, a semiconductor refrigeration fin installed in the dehumidification box on one side of the cooling cavity, and a first radiator and a second radiator are respectively connected to both sides of the semiconductor refrigeration fin. The first radiator is arranged in the cooling cavity, and the second radiator is located outside the dehumidification box. A drainage pipe is connected to the bottom of the cooling cavity. An input button, a temperature and humidity sensor and an LCD are installed on the dehumidification box. The input button and temperature and humidity sensor are installed on the dehumidification box. Connect the input terminal of the controller, and connect the semiconductor refrigeration piece, fan and LCD display to the output terminal of the controller.

An electric heater is installed in the heating chamber, and the electric heater is connected to the output end of the controller.

The drainage pipe is connected to the first hose, the support pipe, the water storage tank and the second hose in sequence. The support pipe is assembled in the stuffing box of the electrical cabinet. The bottom of the water storage tank is conical, and a float is provided in the water storage tank.

A third hose is connected to the air intake pipe.

One end of the third hose is connected to the elbow, and a plurality of powerful magnets are fixedly connected to the elbow.

The beneficial effects of this utility model are: this device adopts a semiconductor refrigeration and dehumidification method, and actively sucks the humid air in the closed electrical cabinet into the dehumidification box. The water vapor in the air quickly cools down and condenses into water after encountering the semiconductor refrigeration. The water is collected centrally Then it is discharged out of the cabinet through the drainage pipe. By reducing the air moisture content in the enclosed space inside the cabinet, the cabinet is isolated from the external environment, making it difficult for external moisture to enter the cabinet again, effectively controlling the humidity inside the cabinet and achieving good results. Dehumidification effect. It can quickly and effectively reduce the air humidity in electrical cabinets and inhibit the occurrence of condensation. It can solve problems such as aging of equipment in the cabinet, reduction of insulation strength, breakdown of secondary terminals, mildew of materials, and corrosion of steel structural parts caused by moisture and condensation. prevention has a significant effect.

Description of the drawings

The utility model will be further described below in conjunction with the accompanying drawings:

Figure 1 is a schematic structural diagram of the present utility model.

Figure 2 is a schematic cross-sectional structural diagram of the utility model.

Figure 3 is a schematic cross-sectional structural diagram at A-A in Figure 2.

Figure 4 is a front view of the utility model.

Figure 5 is a schematic diagram of the connection relationship between various electrical components in the present utility model.

In the picture: electrical cabinet 1, fan 2, electric heater 3, dehumidification box 4, first radiator 5, semiconductor refrigeration piece 6, second radiator 7, air inlet pipe 8, third hose 9, elbow 10, powerful Magnet 11, exhaust pipe 12, partition 13, drain pipe 14, first hose 15, float 16, water tank 17, support pipe 18, temperature and humidity sensor 19, controller 20, liquid crystal display 21, input button twenty two.

Detailed ways

As shown in Figures 1 to 3, an intelligent dehumidification device for a closed electrical cabinet includes a dehumidification box 4. A partition 13 is provided inside the dehumidification box 4. The partition 13 separates the dehumidification box 4 into a cooling chamber and a heating chamber. The cooling chamber The lower end is connected with the lower end of the heating cavity. The dehumidification box 4 is connected with an air inlet pipe 8 and an exhaust pipe 12. A fan 2 is installed on one side of the exhaust pipe 12. A semiconductor refrigeration chip 6 is installed in the dehumidification box 4 on the side of the cooling cavity. , a first radiator 5 and a second radiator 7 are connected to both sides of the semiconductor refrigeration chip 6 respectively. The first radiator 5 and the second radiator 7 are aluminum radiators, and the first radiator 5 is arranged in the cooling cavity. , the second radiator 7 is located outside the dehumidification box 4, and is connected to a drainage pipe 14 at the bottom of the cooling chamber. An input button, a temperature and humidity sensor 19 and an LCD are installed on the dehumidification box 4. The input button and the temperature and humidity sensor 19 are connected to the controller. At the input end, the semiconductor refrigeration piece 6, the fan 2 and the liquid crystal display are connected to the output end of the controller. The controller is an STM32 controller.

The implementation process of this utility model is:

1. The temperature and humidity sensor 19 detects the humidity in the electrical cabinet in real time. When the humidity in the electrical cabinet exceeds the preset value, the controller controls the semiconductor refrigeration chip 6 and the fan 2 to start. The semiconductor refrigeration chip 6 cools the first radiator 5. The fan 2 draws the air in the electrical cabinet through the first radiator 5. The first radiator 5 condenses the moisture in the air and then discharges it from the drain pipe 14. When the humidity in the electrical cabinet drops to the preset value, the controller controls Fan 2 and first radiator 5 stop.

2. As shown in Figure 1, during implementation, a hole is made in the electrical cabinet, and then the second radiator 7 is extended out of the electrical cabinet. At the same time, a cooling fan 2 can be installed on the second radiator 7 (cooling fan 2 in the figure (not shown) to improve the heat dissipation effect of the second radiator 7, so that only the first radiator 5 is kept in the electrical cabinet. In summer, if the temperature in the electrical cabinet exceeds the preset value (such as 50 degrees Celsius), then The controller controls the semiconductor refrigeration chip 6 and the fan 2 to start, and continuously blows cold air to the electrical cabinet to cool the air in the electrical cabinet.

An electric heater 3 is installed in the heating chamber, and the electric heater 3 is connected to the output end of the controller. After starting the electric heater 3, the electrical cabinet is heated as a whole (the heating temperature is 40 to 50 degrees Celsius) to accelerate the volatilization of water on the devices in the electrical cabinet. While volatilizing, the hot air is extracted into the first radiator 5 for condensation. This can Improve dehumidification efficiency.

The drainage pipe 14 is connected to the first hose 15, the support pipe 18, the water storage tank 17 and the second hose in sequence. The support pipe 18 is assembled in the stuffing box of the electrical cabinet. The bottom of the water storage tank 17 is conical. 17 is provided with a floating ball 16. This structure can firstly discharge the condensed water in the electrical cabinet while ensuring the sealing of the electrical cabinet; secondly, the support tube 18 is assembled in the stuffing box to support the first hose 15 and the second hose. , to prevent the first hose 15 and the second hose from interfering with the wires in the electrical cabinet.

The air intake pipe 8 is connected with a third hose 9 . As shown in Figure 1, the third hose 9 is connected to the upper end of the electrical cabinet, so that the air discharged by the fan 2 can penetrate the entire electrical cabinet and improve the dehumidification effect.

One end of the third hose 9 is connected to the elbow 10 , and a plurality of powerful magnets 11 are fixedly connected to the elbow 10 . The elbow 10 can be easily fixed to the electrical cabinet through two powerful magnets 11.

Claims (5)

1. An intelligent dehumidifying device for a closed electrical cabinet, which is characterized in that: including dehumidification case (4), be equipped with baffle (13) in dehumidification case (4), divide into cooling chamber and heating chamber with dehumidification case (4) by baffle (13), cooling chamber lower extreme and heating chamber lower extreme intercommunication, it has intake pipe (8) and blast pipe (12) to communicate on dehumidification case (4), install fan (2) in blast pipe (12) one side, install semiconductor refrigeration piece (6) in dehumidification case (4) in cooling chamber one side, be connected with first radiator (5) and second radiator (7) respectively in semiconductor refrigeration piece (6) both sides, first radiator (5) set up in the cooling chamber, second radiator (7) are located outside dehumidification case (4), communicate in cooling chamber bottom has drain pipe (14), install input button on dehumidification case (4), temperature and humidity sensor (19) and LCD, input button and temperature and humidity sensor (19) connect the controller input, semiconductor refrigeration piece (6), fan (2) and LCD connect the controller output.

2. The intelligent dehumidifying apparatus for a closed electrical cabinet of claim 1, wherein: an electric heater (3) is arranged in the heating cavity, and the electric heater (3) is connected with the output end of the controller.

3. The intelligent dehumidifying apparatus for a closed electrical cabinet of claim 1, wherein: the drain pipe (14) is communicated with the first hose (15), the support pipe (18), the water storage tank (17) and the second hose in sequence, the support pipe (18) is assembled in the packing box of the electrical cabinet, the bottom of the water storage tank (17) is conical, and the floating ball (16) is arranged in the water storage tank (17).

4. A closed electrical cabinet intelligent dehumidifying apparatus as claimed in any one of claims 1 to 3, wherein: the air inlet pipe (8) is communicated with a third hose (9).

5. The intelligent dehumidifying apparatus for a closed electrical cabinet of claim 4, wherein: one end of the third hose (9) is communicated with the elbow (10), and a plurality of powerful magnets (11) are fixedly connected to the elbow (10).