Low-temperature air supply device

Abstract

The invention discloses a low-temperature air supply device. The low-temperature air supply device comprises an air inlet fan (1), an ice water drying chamber (2), a low-temperature cooling chamber (3) and a shunt pipe (5). Different coolants are added into the ice water drying chamber (2) and the low-temperature cooling chamber (3) correspondingly. Air is cooled through a heat exchange tube. The fan (1) is opened to input air into a pipeline, the temperature is controlled through a bypass and a valve, outlet air pressure or flow is controlled through a flow valve, and low-temperature air with given parameters is obtained finally.

Description

technical field [0001] The invention relates to a device capable of continuously supplying low-temperature air. Background technique [0002] Human beings continue to explore in areas with extremely low temperature climates such as plateaus and polar regions. It is necessary to conduct research on the operation of equipment such as engines, electrical appliances, and instruments in extremely low temperature environments, which is of great significance in scientific research and national defense. Most of the experiments can only be carried out in mild climate areas due to limited conditions. Therefore, a device for continuously supplying low-temperature air is needed to simulate air in an extremely low-temperature environment, such as air temperature below -30°C. [0003] At present, there are two ways to continuously supply low-temperature air: ① use the low-temperature working medium generated by the refrigeration cycle to exchange heat with the air to cool the air to a sp...

AI Technical Summary

Problems solved by technology

However, this type of product is expensive, occupies a large area, has a complex structure, and is difficult to maintain

Especially in use, there will often be leakage of refrigeration oil and refrigerant, which will affect the long-term supply air temperature and quality

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