Solution type constant-temperature dehumidifier and control method thereof

Abstract

The invention discloses a solution type constant-temperature dehumidifier comprising two groups of dehumidifiers, a dew point indirect evaporation cooler, a direct evaporator and a refrigerating system, wherein the two groups of the dehumidifiers are connected with an input end of the dew point indirect evaporation cooler; the dew point indirect evaporation cooler is directly connected with an input end of the direct evaporator; the direct evaporator is further connected with each of two groups of the dehumidifiers; and the dew point indirect evaporation cooler is further connected with the refrigerating system. According to the solution type constant-temperature dehumidifier, outdoor low-temperature air is used as a cold source and is subjected to heat exchange with return air after the dehumidification treatment; the power consumption amount of equipment is greatly reduced and the resource of the cold source is abundant; and waste heat of the refrigerating system is used for regenerating dehumidification solution, so that energy saving and environmental protection are realized. According to a control method disclosed by the invention, a dew point indirect evaporation cooling technology is adopted to further reduce the temperature of the sucked outdoor low-temperature air; and the direct evaporator is used for recycling low-temperature heat of the sucked outdoor low-temperature air; and a hot gas bypass technology is used for preventing the dehumidification solution from being excessively evaporated.

Description

technical field [0001] The invention relates to the field of refrigeration equipment, in particular to a solution type constant temperature dehumidifier and a control method thereof. Background technique [0002] Traditional constant temperature and humidity machines generally use refrigeration systems to cool and dehumidify indoor air, and then use electric heating or hot water or steam heat sources to reheat and maintain constant temperature. Constant humidity uses steam humidifiers for isothermal humidification. Such equipment consumes a lot of power, is not economical and practical for users, and cannot use free outdoor low-temperature air energy as a cooling source. [0003] At present, the solution dehumidification air-conditioning system has been widely concerned. Using the solution to treat the air can dehumidify the air at a higher temperature, avoid the generation of condensed water, and improve the quality of air treatment. The solution dehumidification air-cond...

AI Technical Summary

Problems solved by technology

At present, the solution dehumidification air conditioning system on the market generally has a special solution regenerator, which requires a special heater to heat and regenerate the dehumidification liquid, and cannot use the waste heat of the refrigeration system to heat and regenerate the dehumidification liquid.

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