Dry Air Generator Special for Transformers Product Introduction
The KJ-2 series Dry Air Generator Special for Transformers is specially designed to provide high-purity dry air with a dew point as low as -55℃ to -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, offering high efficiency, economy, safety, and environmental protection. The Dry Air Generator comprehensively utilizes the advantages of refrigerated dryers, desiccant dryers, coalescing oil-water separators, and precision filters, scientifically combining freezing, adsorption, and filtration three drying and purification processes, through reasonable pipeline connections and capacity matching, to produce high-quality low-dew-point dry air. Moreover, with integrated design, PLC automatic control, automatic detection of various operating parameters, compact and reasonable structure, excellent drying effect, low regeneration gas consumption, long service life, and effective use of composite desiccants, its lifespan is more than three times longer than ordinary adsorbents. It adopts microcomputer program control, which is efficient, energy-saving, safe, and reliable.
II. Working Principle of Dry Air Generator
Atmospheric air enters the air storage tank through the air compressor, where 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; then it enters the adsorption dryer for the third drying, adsorbing the remaining trace moisture, and finally, after passing through high-precision air filters, it is delivered to the equipment requiring dry gas.
III. Dry Air Generator Product Features
◆ Unique rapid regeneration technology for desiccant
Dry Air Generator adopts rapid regeneration technology, and can provide qualified dry air after running for 5-20 minutes. It truly achieves instant use without waiting.
◆ Low dew point of product gas
The core indicator to measure a dry air generator is the supply gas dew point; the lower the dew point, the drier the air. Low-dew-point dry air will absorb moisture inside the transformer to improve its insulation performance. The series dry air generator integrates compressed drying, refrigerated drying, and adsorption drying, and adopts a multi-stage filtration system. It uses "strong composite molecular adsorbent", so no matter how much moisture the air contains, the dew point of the product gas will quickly drop below -70℃.
◆ High-efficiency filtration system
Dry Air Generator adopts "gradient density" filtration technology, with a filtration precision of 0.01μm and a solid particle retention rate of up to 99.99%. The primary filter has a filtration precision of μm, the secondary filter has a precision of 0.1μm, and the tertiary filter has a precision of 0.01μm.
◆ Completely abandon heating regeneration of adsorbent
The adsorbent adopts a heatless pressure-difference fully automatic regeneration method, completely eliminating the need for manual baking of the adsorbent.
IV. Technical Parameters of Dry Air Generator
Model
KJ-2
Air Supply Volume (m3/min)
2
Working Pressure (MPa)
0.6-0.8
Product Gas Dew Point (℃)
-40℃-- -75℃
Gas Usage Pressure (MPa)
0-0.3
Dust Particle Size (μm)
≦0.01
Adsorbent Regeneration
Heatless automatic regeneration
Adsorbent
Strong composite molecular adsorbent
Ambient Temperature (℃)
-20-40
Power (KW)
18
Power Supply
Dry Air Generator Three-phase four-wire 380V/50HZ (customized special power supply)
Equipment Weight (KG)
900
