The principle of a dehumidifier is simply to draw in moist air through a fan, then condense the moisture in the air into water droplets via a heat exchange system, and finally expel the dried air back out of the dehumidifier. If this process continues, the humidity in the air will gradually decrease. Dehumidification is more effective in environments with high humidity.
1. Internal Cycle The compressor runs → discharges high-temperature and high-pressure gas → the gas enters the condenser to cool down → turns into low-temperature and high-pressure gas → passes through the capillary tube for throttling → turns into low-temperature and low-pressure liquid → evaporates and absorbs heat through the evaporator → returns to the compressor as low-temperature and low-pressure gas. This cycle continues endlessly.
2. External Cycle Under normal startup conditions → through the operation of the fan → humid air is sucked in from the inlet → passes through the evaporator → the evaporator adsorbs moisture from the air onto aluminum plates → turns into dry air → passes through the condenser for heat dissipation → blows out from the outlet. The main components of a dehumidifier include a compressor, heat exchanger, fan, water tank, casing, and computer (or mechanical) controller. The saturated water content in the air decreases with the drop in air temperature. A dehumidifier uses this principle and then utilizes the compressor for refrigeration, lowering the air temperature below the dew point. At this point, the excess moisture beyond the air's water content limit will precipitate. By using the fan to draw indoor air into the machine, moisture is extracted, and dry air is discharged. The water is collected in the water tank, thereby achieving the purpose of reducing indoor humidity.
What is the principle of industrial dehumidifiers?
The principle of internal and external circulation of industrial dehumidifiers: 1. The inner circulation of the dehumidifier: Through the operation of the compressor, high-temperature and high-pressure gas is discharged from the exhaust port into the condenser to cool down into low-temperature and high-pressure gas. After throttling through the capillary tube, it becomes low-temperature and low-pressure liquid. It absorbs heat through the evaporator and returns to the compressor as low-temperature and low-pressure gas. This cycle repeats continuously. 2. The outer circulation of the dehumidifier: Under normal operating conditions, damp air is sucked in through the inlet, passes through the evaporator, which adsorbs the moisture in the air onto the aluminum sheets, turning it into dry air. After heat dissipation through the condenser, it is blown out from the outlet. 1. Temperature-regulating dehumidifiers use evaporators to cool and dehumidify the air while recovering the condensation heat from the system to compensate for the heat lost during cooling and dehumidification. This is an efficient and energy-saving dehumidification method that has been widely applied in defense projects, civil air defense projects, tobacco and petrochemical industries, subway stations, aerospace purification projects, laboratories, telecommunication equipment rooms, archives, food storage rooms, pharmaceutical or film workshops, special glass manufacturing, grain, timber, etc., for dehumidification drying and temperature control in high-humidity spaces. 2. China's climate types are diverse, with large temperature differences between winter and summer in most areas, and obvious changes in thermal/cold/moisture loads over time. Traditional dehumidification and drying systems cannot well meet actual needs. 3. Temperature-regulating dehumidifiers provide a method and equipment for heating, cooling, and dehumidifying indoor spaces under different indoor and outdoor temperatures to meet indoor temperature and humidity requirements. They ca