The simplest refrigeration system consists of four main components:

1. Compressor: Provides power to circulate the refrigerant.

2. Condenser: Cools the refrigerant, converting it from hot gas to room-temperature liquid.

3. Throttle Device (Expansion Valve): Reduces pressure and regulates refrigerant flow.

4. Evaporator: Allows the refrigerant to evaporate, cooling the chamber air and lowering the chamber temperature.

After the refrigeration is completed, the steam from the evaporator is compressed by the refrigeration compressor, and the temperature and pressure rise sharply.

The “cold balance" technology of the "intelligent high and low temperature test chamber temperature control system", that is, the balance mode of "no heating in the refrigeration process" and "no cooling in the heating process", is different from the traditional technology of "cold and heat dynamic balance" of high-power refrigeration against high-power heating, The controller controls the temperature by adjusting the refrigerant flow to control the refrigeration energy according to different temperature control points of the equipment and the amount of cooling required by the user's test article. There is no need to heat to balance refrigeration (i.e. the "static balance" technology of refrigeration without heating and heating without refrigeration), The more uniform the thermal power consumption of the equipment is (the better the thermal control performance of the traditional technology is), and the better the thermal balance of the equipment can be achieved; The longer the low-temperature operation time is, the more obvious the energy-saving advantage is.