Dehumidification device for power distribution cabinet

Abstract

The utility model discloses a dehumidification device for a power distribution cabinet, which is characterized by comprising a mounting plate, an air filter chamber, an air inlet chamber, a condensation chamber, an air guide pipe, a heating chamber and an air outlet are sequentially connected and arranged on the mounting plate, a semiconductor refrigerator is arranged between the condensation chamber and the heating chamber, and the semiconductor refrigerator is connected with the air inlet chamber. Wherein the cold end of the semiconductor cooler is located in the condensation chamber, the hot end of the semiconductor cooler is located in the heating chamber, the cold end and the hot end of the semiconductor cooler are both provided with fins, and the fins located at the cold end are provided with a plurality of vertical confluence grooves. The utility model has the advantages that the structure is simple, the installation is convenient, the dehumidification device is very suitable for dehumidification application in small spaces such as the power distribution cabinet, condensed dew is directly discharged out of the power distribution cabinet, air in the power distribution cabinet is heated, and the possibility of condensation is reduced.

Description

Technical Field

[0001] The utility model relates to the field of dehumidifiers, and particularly to a dehumidifying device for a power distribution cabinet. Background Art

[0002] Some power distribution cabinets are located near humid environments such as riversides or riverbanks. Therefore, condensation is likely to occur inside the high-voltage cabinets. Condensation is very harmful to power distribution cabinets, easily causing aging of circuits, reducing the insulation performance of circuits, and causing many safety accidents regarding power consumption safety, information security, etc. Therefore, it is necessary to design a small dehumidifying device for use inside power distribution cabinets to change the air humidity inside the power distribution cabinets and greatly reduce the probability of condensation. Summary of the Invention

[0003] Aiming at the deficiencies in the above-mentioned prior art, the utility model provides a dehumidifying device for a power distribution cabinet, which has a simple structure and can be installed inside the power distribution cabinet to solve the problem of high humidity inside the power distribution cabinet.

[0004] In order to achieve the above object, the utility model adopts the following technical solutions:

[0005] A dehumidifying device for a power distribution cabinet, characterized in that: it includes a mounting plate, on which an air filter chamber, an air inlet chamber, a condensation chamber, a duct, a heating chamber, and an air outlet are sequentially connected. A semiconductor refrigerator is arranged between the condensation chamber and the heating chamber, the cold end of the semiconductor refrigerator is located inside the condensation chamber, the hot end of the semiconductor refrigerator is located inside the heating chamber, fins are arranged at both the cold end and the hot end of the semiconductor refrigerator, and a plurality of vertical confluence grooves are provided on the fins at the cold end.

[0006] Further, a fan is arranged inside the air inlet chamber for blowing humid air towards the condensation chamber side.

[0007] Further, a detachable filter grid is arranged inside the air filter chamber.

[0008] Further, the bottom of the condensation chamber is funnel-shaped, and a drain pipe is arranged at the lowest point of the funnel, and the other end of the drain pipe extends outside the power distribution cabinet.

[0009] Further, the fins at the hot end are wavy in the horizontal direction.

[0010] Further, the opening direction of the air outlet is upward.

[0011] Further, a dehumidification controller is arranged inside the power distribution cabinet, the dehumidification controller is connected with a humidity sensor, and the dehumidification controller is controllably connected with the semiconductor refrigerator.

[0012] The beneficial effects of the present utility model include: simple structure, convenient installation, very suitable for dehumidification applications in small spaces such as distribution cabinets, and the condensed dew is directly discharged from the distribution cabinet, and the air in the distribution cabinet is heated to reduce the possibility of condensation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The present utility model will be further described in detail below with reference to specific embodiments and the accompanying drawings.

[0015] A dehumidification device for a distribution cabinet as Figure 1 shown, includes a mounting plate 1. Mounting holes are provided at the four corners of the mounting plate 1. The mounting plate 1 is an insulating phenolic board and is bolted to one side of the lower part of the distribution cabinet.

[0016] An air filter chamber 2, an air inlet chamber 3, a condensation chamber 4, a duct 5, a heating chamber 6, and an air outlet 7 are sequentially connected and arranged on the mounting plate 1. The air filter chamber covers the inlet end of the air inlet chamber 3. A detachable filter grid 12 is provided in the air filter chamber 2 for filtering dust in the air entering the air filter chamber 2. To prevent dust from entering the condensation chamber 4 and adhering to the condenser.

[0017] A fan 11 is provided in the air inlet chamber 3 for blowing humid air towards the condensation chamber 4.

[0018] A thermoelectric cooler 8 is provided between the condensation chamber 4 and the heating chamber 6. The cold end of the thermoelectric cooler 8 is located in the condensation chamber 4, and the hot end of the thermoelectric cooler 8 is located in the heating chamber 6. Fins 9 are provided at both the cold end and the hot end of the thermoelectric cooler 8. A plurality of vertical confluence grooves 10 are provided on the fins 9 at the cold end. The humid air condenses into water droplets on the fins 9 at the cold end and drips down along the confluence grooves 10 to the bottom of the condensation chamber 4. And the bottom of the condensation chamber 4 is funnel-shaped, and a drain pipe 13 is provided at the lowest point of the funnel. The other end of the drain pipe 13 extends outside the distribution cabinet. This structure facilitates the timely discharge of the condensate outside the distribution cabinet.

[0019] Furthermore, the fins 9 at the hot end are wavy in the horizontal direction. When the air after condensation flows through the wavy heat dissipation fins, the air can be heated. The wavy structure can slow down the air flow rate and increase the heating effect. The air outlet 7 of this embodiment is preferably oriented upward, and the outlet end of the air outlet 7 is in a flared structure, so that the dehumidification device located on one side of the lower part of the distribution cabinet can blow hot air throughout the distribution cabinet. Since hot air rises and cold air descends, the possibility of condensation is reduced by increasing the overall temperature inside the cabinet.

[0020] Furthermore, a dehumidification controller is provided inside the power distribution cabinet in this embodiment. The dehumidification controller is connected to a humidity sensor, and the dehumidification controller is connected to the semiconductor cooler 8 and the fan 11 for control. When it is detected that the air humidity inside the power distribution cabinet reaches the predetermined lower limit value, the semiconductor cooler 8 and the fan 11 are started to perform dehumidification work. When it is detected that the air humidity inside the power distribution cabinet reaches the preset upper limit value, the semiconductor cooler and the fan 11 are turned off.

[0021] The technical solutions provided by the embodiments of the present invention have been introduced in detail above. Specific examples are used in this article to elaborate on the principles and implementation manners of the embodiments of the present invention. The descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; at the same time, for those of ordinary skill in the art, based on the embodiments of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A dehumidification device for a power distribution cabinet, characterized in that: The invention comprises a mounting plate (1), on which an air filter chamber (2), an air inlet chamber (3), a condensing chamber (4), an air guide duct (5), a heating chamber (6), and an air outlet (7) are sequentially connected, wherein a semiconductor refrigerator (8) is arranged between the condensing chamber (4) and the heating chamber (6), wherein the cold end of the semiconductor refrigerator (8) is located in the condensing chamber (4), and the hot end of the semiconductor refrigerator (8) is located in the heating chamber (6), and both the cold end and the hot end of the semiconductor refrigerator (8) are provided with fins (9), wherein the fins (9) located at the cold end are provided with a plurality of vertical confluence grooves (10).

2. A dehumidification device for a power distribution cabinet according to claim 1, characterized in that: A fan (11) is provided in the air inlet chamber (3) for blowing humid air into one side of the condensation chamber (4).

3. A dehumidification device for a power distribution cabinet according to claim 1, characterized in that: A detachable filter grid (12) is arranged in the air filter chamber (2).

4. A dehumidification device for a power distribution cabinet according to claim 1, characterized in that: The bottom of the condensation chamber (4) is funnel-shaped, and a drain pipe (13) is provided at the lowest point of the funnel, and the other end of the drain pipe (13) extends out of the power distribution cabinet.

5. The dehumidification device for a power distribution cabinet according to claim 1, characterized in that: The fins (9) of the hot end are wavy in the transverse direction.

6. A dehumidification device for a power distribution cabinet according to claim 1, characterized in that: The opening direction of the air outlet (7) faces upward.

7. A dehumidification device for a power distribution cabinet according to claim 1, characterized in that: A dehumidification controller is arranged in the power distribution cabinet, the dehumidification controller is connected to a humidity sensor, and the dehumidification controller is controllably connected to the semiconductor refrigerator (8).

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