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The working principle of the constant temperature and humidity chamber

Date:2016-12-09 Author: Click:

The refrigeration cycle uses the inverse card circulation, which consists of two isothermal processes and two adiabatic processes. The process of the constant temperature and humidity chamber is as follows: The refrigerant is compressed by the compressor to a higher pressure, The temperature is raised, and then the refrigerant is transferred to the surrounding media by heat exchange with the condenser and the surrounding heat exchange. After the refrigerant through the shutoff valve adiabatic expansion work, then the refrigerant temperature decreases. Finally, the refrigerant evaporates from the higher temperature object through the evaporator so that the temperature of the object to be cooled is lowered. This cycle is repeated to achieve the purpose of cooling.

The design of the refrigeration system of the constant temperature and humidity chamber is designed to ensure the normal operation of the refrigeration unit and the energy consumption and cooling capacity of the refrigeration system, so that the refrigeration system can be kept in the best running state. With the balance of temperature control (BTC), both in the continuous operation of the refrigeration system, the control system according to the set temperature point through the PID automatic calculation of the output to control the output of the heater, and ultimately to achieve a dynamic balance.


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