Multifunctional drying and dehumidifying device and drying and dehumidifying method thereof

Abstract

The invention discloses a multifunctional drying and dehumidifying device and a drying and dehumidifying method thereof. The drying and dehumidifying device comprises a heat pump assembly, a drying assembly and a controller. The heat pump assembly comprises a compressor, a four-way valve, a condenser, a one-way valve, a liquid accumulator, a filter, a thermal expansion valve, a gas-liquid separator, an outdoor evaporator, a first dehumidification evaporator and a second dehumidification evaporator. The evaporators are each provided with an electromagnetic valve. The drying assembly comprises a dryer shell body, a circulating draught fan, a moisture exhausting draught fan, an air heat exchanger and an outdoor draught fan. According to the structural design, the drying and dehumidifying device has the advantages of being novel in structural design, diversified in function and good in energy conservation and environmental protection effect. In addition, the drying and dehumidifying method comprises the following operating modes of a ventilation mode, a heating mode, a constant-temperature dehumidifying mode, a cooling dehumidifying mode, a heating moisture exhausting mode and a constant-temperature dehumidifying moisture exhausting mode. According to the design of the operating modes of the drying and dehumidifying method, a plurality of functions can be realized, and the good effects of energy conservation and environmental protection are achieved.

Description

technical field [0001] The invention relates to the technical field of drying and dehumidifying devices, in particular to a multifunctional drying and dehumidifying device and a drying and dehumidifying method thereof. Background technique [0002] China's modern drying technology has gradually developed since the 1950s. So far, many drying equipment have appeared. Common drying equipment includes airflow drying, spray drying, fluidized drying, spin flash drying, infrared drying, microwave drying, etc. Drying, freeze-drying and other equipment can be developed and produced in my country to meet the market supply. In recent years, some new drying equipment have been gradually developed and applied, such as impact drying, convective flow drying, superheat drying, heat pump drying and other equipment, among which heat pump drying technology has been supported and promoted by the government; with the intensification of energy consumption in China , the national government's macr...

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Problems solved by technology

The preset fuel energy or electric energy of the fuel input into the heater is 100 parts. Since the heat energy loss will inevitably occur during the heat transfer process, the actual heat energy obtained is only about 70-95%; The humidity content of the air is equal to the humidity content of the ambient air. When the humidity in the ambient air is high, the moisture content is large and the material requires low-temperature drying, the application of traditional heating and drying devices will be limited, especially for small and medium-sized boilers. , due to environmental pollution, safety hazards and other reasons, it has been the target of comprehensive rectification by the government, and it is very difficult to obtain boiler-related permits for newly launched projects

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