ThermoTST is a precise high and low temperature impact airflow instrument with a wider temperature range, providing a very advanced temperature conversion test capability. Temperature conversion from - 55 ℃ to+125 ℃ for about 10 seconds; It meets the requirements of various production environments and engineering environments through long-term multi-condition verification. ThermoTST is pure mechanical refrigeration, without liquid nitrogen or any other consumable refrigerant. What are the characteristics of ThermoTST's refrigeration system?

1. Advanced energy-saving design:

VRF (refrigerant flow control) technology based on PID+PWM principle is used to realize low temperature energy-saving operation: the heater is not involved in the operation at low temperature, and the refrigerant flow and direction are adjusted by PID+PWM, and the three-way flow of refrigeration pipe, cold bypass pipe and hot bypass pipe is adjusted to realize automatic constant temperature of the working room. This method can reduce energy consumption by 30% under low temperature conditions. This technology can be applied to smooth adjustment of cooling capacity when different cooling capacity requirements are met, that is, to realize cooling capacity adjustment of compressor when different cooling rate requirements are met;

2. Refrigeration process:

The protection measures for the compressor have been fully considered in the design of the refrigeration system, such as the automatic protection function of the suction and discharge pressure of the compressor, which keeps the operating temperature of the compressor within the normal temperature range to avoid the compressor being too cold or overheated, so as to extend the service life of the compressor. High-quality oxygen-free copper pipe gas shielded welding is adopted for pipeline welding of refrigeration system, which avoids the damage to refrigeration system and compressor caused by oxide generated on the inner wall of copper pipe by traditional welding method. In the design of the refrigeration system, the vibration reduction measures during the operation of the unit are fully considered, such as installing spring damper on the compressor, and adding arc bending on the refrigeration pipeline to avoid the pipeline deformation and leakage caused by the operation vibration and temperature change, so as to improve the reliability of the whole refrigeration system.

3. Energy saving measures:

The following effective energy regulation measures are adopted, such as: refrigeration capacity regulation of the refrigeration system, gas-liquid bypass regulation, evaporation temperature regulation, etc. When the temperature is constant at any low temperature point, there is no need for heating balance, and the operating power can be reduced to half, so that the operating cost and failure rate of the refrigeration system can be reduced to a more economical state.

4. Compressor return air temperature regulation:

Automatically adjust the return air temperature of the compressor to keep the temperature of the compressor within the normal range and avoid the compressor from being too cold and overheated.

5. Vibration reduction measures

Overall secondary vibration reduction of special rubber cushion; The refrigerant system pipeline adopts the method of adding R and elbow to avoid the deformation of copper pipe caused by vibration and temperature change, which will cause the refrigerant system pipeline rupture.