New Air Supply Low-Temperature Refrigeration Unit for -5°C to -40°C (24/7 Operation)

Low-Temperature Refrigeration Air Unit for Scientific Research

Low-temperature refrigeration air units for scientific research are air-cooled refrigeration equipment designed to provide cold sources ranging from -5°C to -40°C for research experiments. At specific temperatures, researchers can read physical data from experiments. The temperature range of the low-temperature refrigeration air units introduced by our company: the new natural air can reach as low as -40°C and operate continuously for 24 hours a day; the cold air can reach as low as -90°C 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. The evaporator absorbs heat from the air. During the evaporation process, the refrigerant temperature remains unchanged. The liquid refrigerant evaporates into a low-temperature, low-pressure gaseous refrigerant and enters the compressor. After being compressed by the compressor, it becomes a high-temperature, high-pressure gaseous refrigerant and then enters the condenser. In the condenser, it undergoes heat exchange with the natural air drawn by the cooling fan, discharging the heat of the high-temperature, high-pressure refrigerant out of the unit. The cooled refrigerant flows out of the condenser 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, which is a rapid cooling process. The refrigerant turns into a low-temperature, low-pressure liquid. After this process, the refrigerant re-enters the evaporator for heat exchange and evaporation, thereby completing the entire refrigeration system process. This cycle continues continuously, allowing the water to be continuously refrigerated. The cold air is then sent to the desired cooling destination through the fan from the air outlet.

Unit Selection

Low-temperature refrigeration air units for scientific research are divided into split-type and integrated designs. The split-type is suitable for space cooling, with an installation method similar to 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 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°C ±2; cold air -90 to 0°C ±0.5.

After-Sales Service

All equipment from our company: one-year warranty, lifetime maintenance (excluding human factors and consumables).

Upon receiving the customer's written equipment repair notice, we will 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