New air low-temperature air handling unit for -5℃ to -40℃ (24/7 operation)

Low-Temperature Air Unit for Scientific Research

The low-temperature air unit for scientific research is a wind cooling device that provides a cold source ranging from -5℃ to -40℃ for scientific experiments. At specific temperatures, researchers can read the physical data of the experiments. The temperature range of the low-temperature air unit for scientific research introduced by our company is as follows: the new natural air can reach a low temperature of -40℃ and operate continuously for 24 hours a day; the cold air can reach a low temperature of -90℃ and operate continuously for 24 hours a day.

Working Principle

According to the principle of the refrigeration system: low-temperature and low-pressure liquid refrigerant undergoes heat exchange with the air flowing into the evaporator in the evaporator. The evaporator absorbs heat from the air. During the evaporation process, the temperature of the refrigerant remains unchanged. The liquid refrigerant evaporates into low-temperature and low-pressure gaseous refrigerant and enters the compressor. After being compressed by the compressor, it becomes high-temperature and high-pressure gaseous refrigerant and then enters the condenser. In the condenser, it undergoes heat exchange with the natural air drawn and discharged by the cooling fan, expelling the heat of the high-temperature and high-pressure refrigerant out of the unit. The cooled refrigerant flows out of the condenser and passes through a dryer filter to remove moisture or other impurities contained in the refrigerant during the evaporation process. It then enters the expansion valve for expansion and throttling. Expansion and throttling is a process of rapid cooling, turning the refrigerant into low-temperature and low-pressure liquid. The refrigerant after this process re-enters the evaporator for heat exchange and evaporation, thereby completing the entire process of the refrigeration system. This cycle continues continuously, allowing the water to be continuously cooled. The cold air is then sent to the desired cooling destination through the fan from the air outlet.

Unit Selection

The low-temperature air unit for scientific research is available in split and integrated designs. The split type is suitable for space cooling, with an installation method similar to that of household air conditioners: the condenser is installed outdoors, and the main unit is installed indoors. The integrated unit is more widely applicable, with the main unit for space cooling placed outdoors and connected to air ducts leading indoors. Note: This is fresh air, and it can also be configured as recirculated air.

Unit Features:

1．PLC control system.

2. Touch screen human-machine interface.

3. R485 communication port can connect to the upper computer to read and print experimental data.

4. Temperature control: new natural air -40 to 50℃ ±2; cold air -90 to 0℃ ±0.5.

After-Sales Service

All equipment from our company comes with a one-year warranty and lifetime maintenance (excluding human factors and wear parts).

Upon receiving the customer's written equipment repair notice, we respond within 36 hours for on-site repairs within Guangdong Province and within 72 hours for on-site repairs outside Guangdong Province.

Unit Technical Parameters