A control cabinet and humidity control method based on molecular sieve dehumidification

Abstract

The invention discloses a control cabinet based on molecular sieve dehumidification. The control cabinet comprises a control cabinet (1). The control cabinet (1) is internally provided with a storage space (22) and a dehumidification system. The storage space (22) and a cabinet door (21) are mutually cooperated to form an enclosed space. The dehumidification system comprises moisture absorption valve (24) and humidity elimination valve (25). A moisture absorption layer is arranged between each moisture absorption valve (24) and each humidity elimination valve (25). The moisture absorption layer comprises a housing (27) made of netted aluminium alloy materials. The housing (27) is internally provided with a molecular sieve layer (23). One side of the housing (27) is provided with the moisture absorption valves (24), and the other side is provided with the humidity elimination valves (25) in sequence. The lower end of the housing (27) is provided with a PTC heating pipe (26). The moisture absorption valves (24) are communicated with the storage space (22). A mutually-exclusive logic mechanism is formed between each moisture absorption valve (24) and each humidity elimination valve (25).

Description

technical field [0001] The invention relates to the technical field of humidity control, in particular to a control cabinet based on molecular sieve dehumidification and a humidity control method. Background technique [0002] Humidity is an important parameter for the storage of components in industries such as electronics, chemical industry, and precision manufacturing. Appropriate humidity is an important condition for safe storage of items. Excessive environmental humidity will lead to poor performance of stored devices, accelerated oxidation and aging, and even the growth of mold, causing losses. Therefore it is necessary to control the humidity. Investigate the common humidity control equipment currently on the market. According to the control principle, there are roughly several types: cooling dehumidification, adsorption dehumidification, absorption dehumidification, compression dehumidification and other dehumidification methods. [0003] (1) Cooling and dehumidif...

AI Technical Summary

Problems solved by technology

Physical adsorption does not need to be in contact with the stored items, and will not affect the performance of the items. The disadvantage is that the adsorption method is a passive process, and accurate humidity control is a problem.

[0009] At present, there are few researches at home and abroad on the use of molecular sieves for humidity control and optimization, and the corresponding humidity control cabinets have not been effectively controlled. Most domestic manufacturers still use simple switch control to achieve the set humidity. Stop moisture absorption, and restart moisture absorption when the humidity is higher than the set value. Due to the lack of understanding of the moisture absorption characteristics of molecular sieves, the humidity control effect is not good

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