Dehumidification device and operation method therefor

Abstract

A dehumidification device and an operation method therefor are disclosed. The dehumidification device can comprise: an air blowing part for causing external air to flow therein by using an air blowing fan and an air blowing motor operating the air blowing fan so as to form an air flow; a variable compressor for controlling the amount of a refrigerant gas to be compressed, by varying the rotation speed of a drive shaft; a condenser for liquefying the refrigerant gas compressed by the variable compressor; a heat exchanger for cooling the air, which has flowed in by the air blowing part, by vaporizing the refrigerant gas liquefied by the condenser; and a control unit for controlling the rotation speed of the drive shaft of the variable compressor at every predetermined period.

Description

technical field [0001] The present application relates to a dehumidification device and its working method. Background technique [0002] A dehumidification device for dehumidifying air generally removes air moisture using a refrigeration cycle including a compressor, a condenser, and a heat exchanger. That is, moisture can be removed by condensing water vapor contained in the air into water in a heat exchanger. [0003] Here, the compressor may be constituted by a fixed compressor operating at a fixed rotational speed, or a variable compressor whose rotational speed is variable. [0004] In a dehumidifier using a fixed compressor, the fixed compressor is operated at a fixed rotation speed until the air humidity reaches a target humidity range, and the operation of the fixed compressor is stopped when the target humidity range is reached. [0005] On the contrary, in a dehumidifier using a variable compressor, although the rotation speed of the variable compressor can be c...

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Problems solved by technology

[0005] On the contrary, in a dehumidifier using a variable compressor, although the rotation speed of the variable compressor can be changed in consideration of the humidity of the air, the rotation speed of the variable compressor is adjusted stepwise when the air humidity is within the target humidity range. rotation speed, so there is a limit to improving energy efficiency while maintaining the dehumidification performance of the dehumidifier

[0006] In addition, the existing dehumidifiers can generate frost on the heat exchanger in a low-temperature and low-humidity environment. Although the humidity is low, the rotation speed of the compressor cannot be reduced, so there is a problem of reduced efficiency.

In addition, the existing dehumidifier may overload the compressor in a high-temperature and high-humidity environment

[0007] The following patent document 1 relates to a device having a dehumidification function and an air purification function and a control method thereof, but does not disclose a solution to the above-mentioned problems

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