High pressure cabinet clean dry air exchange system

Abstract

The invention provides a high-voltage cabinet clean dry air exchange system. The system housing is divided into two chambers, separated by a partition and a dehumidification wheel in the middle. One chamber is equipped with a regeneration air inlet, a regeneration fan, a heater, a drying air Centrifugal fan and dry air outlet, the other room is equipped with regenerated air outlet, process air inlet and cooler, the dry air outlet is connected to the bottom inlet of the high-voltage cabinet through the gas pipeline; a system control box is also installed on the system shell. The desiccant rotor is divided into a process air zone and a regeneration air zone. The dry air is continuously delivered to the high-pressure cabinet through the gas pipeline to ensure that the air pressure inside the cabinet is positive relative to the outside of the cabinet. Its advantages are: through the positive pressure of dry air with ultra-low dew point in the cabinet, the humid air is discharged out of the cabinet through the gap of the cabinet body and the pressure relief channel, which completely reduces the moisture content of the air in the cabinet, thereby reducing the air humidity in the cabinet , reducing the dew point temperature, thereby avoiding the occurrence of condensation.

Description

Technical field [0001] The invention relates to an air dehumidifier, in particular to a high-pressure cabinet clean and dry air exchange system. Background technique [0002] There are many dehumidification methods for switch cabinets at this stage. There are dehumidifiers installed in high-pressure rooms, traditional heating and dehumidifying devices in cabinets, and semiconductor dehumidifiers, but the effect is not obvious, because they rely solely on the external environment of the high-voltage cabinet, that is, high-pressure Installing dehumidification equipment in the room, or placing a heater in the switch room, or using special thermoelectric semiconductor materials according to the Peltier effect, manufacturing semiconductor refrigeration devices for dehumidification cannot effectively prevent moisture in the high-voltage cabinet from passing over and forming condensation . To solve the problem of excessive humidity and condensation in the switch cabinet, the problem ca...

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Problems solved by technology

[0002] At this stage, there are many dehumidification methods for switch cabinets. There are dehumidifiers installed in the high-voltage room, traditional heating and dehumidification devices in the cabinet, and semiconductor dehumidifiers, but the effect is not obvious, because simply relying on the external environment of the high-voltage cabinet is the high-voltage dehumidifier. Installing dehumidification equipment indoors, or placing heaters in the switch room, or using special thermoelectric semiconductor materials to manufacture semiconductor refrigeration devices for dehumidification according to the Peltier effect cannot effectively prevent the moisture in the high-voltage cabinet from passing through and form condensation.

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