AD-Series Dry Air Generator is specially designed to provide high-purity dry air with a dew point as low as -60℃~-70℃ for large power equipment such as transformers and reactors during installation and maintenance. It can replace traditional drying methods such as hot oil circulation, nitrogen supplementation, and vacuum drying, and is more efficient, economical, safe, and environmentally friendly.
When using the AD-Series Dry Air Generator for installation and maintenance of power equipment, it is not affected by changes in external climatic conditions. Especially for overnight operations, simply seal all flanges and fill with dry air to 0.02-0.03Mpa. There is no need for oil filling, nitrogen supplementation, or vacuum pumping. Transformers, reactors, and other power equipment will not be affected by moisture, greatly reducing workload, shortening construction periods, and improving installation and maintenance quality. The AD-Series Dry Air Generator is also suitable for air drying and circulating drying in warehouses, packaging, electronics, pharmaceuticals, and other industries. It is also applicable for drying nitrogen, hydrogen in generator sets, and SF6 equipment. It replaces traditional drying methods, is efficient, economical, safe, and environmentally friendly, integrating air compression, refrigeration drying, and adsorption into one unit, and is freely movable.
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 condenses into water, achieving the second drying. Subsequently, it enters the adsorption dryer for the third drying, where the remaining trace moisture is adsorbed. Finally, it passes through a high-precision air filter and is delivered to the equipment requiring dry gas.
Performance and Features
The AD-Dry Air Generator device mainly consists of four parts: the air source system, refrigeration drying system, adsorption drying system, and electrical control system, forming a mobile high-purity dry air generating 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 compression 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, achieving a low-temperature environment of 0-5℃ inside the evaporator.
Electrical control: The main control electrical parts adopt Schneider Electric; the whole machine has stable, safe, and reliable electrical performance.
