Thermal shock test chamber working principle simple description
Thermal Shock Test Chamber low temperature storage room: the temperature inside the box by the duct in the heater, evaporator and fan working status decision. After the expansion of the expansion valve through the expansion of the refrigerant into the studio after the evaporator, the absorption of indoor heat and gasification, so that the studio temperature decreases; gasification of the refrigerant after the compressor inhalation and compression into high temperature, high pressure gas into the condenser Is condensed into liquid, and then through the screening program, and finally through the expansion valve throttling, re-enter the work room evaporator heat and gasification and then by the compressor suction compression. So reciprocating work, so that the temperature of the studio down to set the temperature requirements.
Thermal Shock Test Chamber high temperature storage room: the central controller from the temperature sensor to detect real-time signal, and set the temperature signal to compare the signal obtained by the instrument PID logic circuit output signal control solid state relay on or off The proportion of time to adjust the size of the heater output power, so as to achieve the purpose of automatic temperature control.
Thermal Shock Test Chamber impact temperature test room: automatic control by the instrument high and low temperature valve, in the low temperature or high temperature storage room to switch between, respectively, with the high temperature box or low temperature box to form a closed air circulation system, quickly reach the target temperature test.
The temperature status of the test chamber is determined by the working conditions of the heaters, evaporators and fans in the duct. In the working chamber of the test box, the forced axial flow "scattered" type of circular motion work can greatly improve the fluctuation of the equipment operation, uniformity and other parameters.
Contact :Lisa Zhong