Constant temperature and humidity test chamber cold heat and humidity system structure description

The constant temperature and humidity chamber adjusts the temperature and humidity in the tank to a given value in a certain way, and tests under the conditions to meet the experimental reaction requirements, that is, a test chamber capable of simultaneously applying temperature and humidity. The structure of the constant temperature and humidity test chamber is as follows:

(1) Refrigeration system:

The cooling mode of the constant temperature and humidity test chamber is mechanical refrigeration, that is, steam compression refrigeration. They are mainly composed of a compressor, a condenser, a throttle structure and an evaporator. The refrigerant continuously absorbs the energy of the air delivered to the evaporator in the evaporator to achieve the purpose of refrigeration.

(2) Heating system:

When the temperature of the air in the box is lower than the required temperature, the control system of the constant temperature and humidity test chamber turns on the electric heater, heats the air, and sends it to the box through the fan to achieve the purpose of heating.

(3) Humidity system:

The humidification method of the constant temperature and humidity test chamber generally adopts the steam humidification method, that is, the low pressure steam is directly injected into the test space to humidify. This humidification method has strong humidifying ability, high speed, and sensitive humidification control, and it is easy to achieve forced humidification especially when cooling.

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