When using the AD-series dry air generator for installation and maintenance of power equipment, it is not affected by changes in external climate conditions. Especially for overnight operations, simply seal the flanges and fill with dry air to 0.02-0.03Mpa. There is no need for oil filling, nitrogen supplementation, or vacuum pumping. Power equipment such as transformers and reactors will not be affected by moisture, greatly reducing workload and achieving the effect of shortening construction periods and improving installation and maintenance quality. The AD-series dry air generator is also suitable for air drying and circulation drying in warehouses, packaging, electronics, pharmaceuticals, and other industries. It is also suitable for drying nitrogen, generator set hydrogen, and SF6 equipment. It replaces traditional drying methods, is efficient, economical, safe, and environmentally friendly, integrating air compression, cold drying, and adsorption, and can be moved freely.

Working Principle


Atmospheric air enters the air storage tank through the air compressor. Most of the moisture is compressed and liquefied and discharged through the drain valve, achieving the first drying of the air. Then it enters the refrigerated dryer, where water vapor is condensed into water, achieving the second drying of the air. Then it enters the adsorption dryer for the third drying, adsorbing the remaining trace moisture. Finally, it passes through a high-precision air filter and is transported to equipment requiring dry gas.

Performance and Features


The D-series dry air generator device mainly consists of four parts: the air source system, the refrigeration drying system, the adsorption drying system, and the electrical control system, forming a mobile high-purity dry air generation device.

Air source system composition: It consists of an air dust filter, an oil-free air pump (or screw-type oil-free air compressor), a radiator (air-cooled), an air-water separator, and filters, outputting clean and oil-free gas.

Refrigeration drying system composition: This device mainly adopts an imported fully sealed high-temperature compression refrigeration unit, with stable and reliable performance, capable of obtaining greater cooling capacity. The system configuration adopts an imported fully sealed compressor unit, air heat exchanger, evaporator, air-water separator, and fine filter; during the refrigeration process, R22 refrigerant first passes through the fully sealed high-temperature compression refrigeration compressor, cooler, desiccant, solenoid valve, and finally returns to the refrigeration compressor through the evaporator, obtaining a low-temperature environment of 0-5°C inside the evaporator.