Desiccant Air Dryer

As a comprehensive supplier of compressed air system solutions, "Great" not only manufactures screw-type, piston-type and centrifugal air compressors, but also fully researches, develops and manufactures post-treatment and purification equipment for compressed air (such as dryers, refrigerated dryers, precision filters, etc.).

• Complete industrial chain integration: The vacuum dryers of Grek are usually the standard purification equipment for its "Grek" screw air compressors, which can better achieve pressure matching and联动 control between systems, ensuring the stability and high cleanliness of the air source.
• Mainstream regeneration processes：
  1. Non-thermal regeneration vacuum dryer： Regeneration is achieved through a small amount of dry gas for micro gas consumption switching. The structure is simple and is suitable for smaller air volumes or for conditions where initial installation cost is a concern.
  2. Micro-heat/ventilation regeneration vacuum dryer: External heat sources or ambient air are introduced for regeneration, significantly reducing gas consumption and being more energy-efficient, suitable for large industrial stations.
•  Deep drying capacity： The designed pressure dew point is stable at -40℃ to -70℃ level, effectively removing gaseous moisture from compressed air, protecting terminal pneumatic components, precision instruments, or meeting the gas usage standards for demanding processes such as spraying and pharmaceuticals.

 

Besides the basic principle of the heatless type above, add heating process function and device. In order to achieve to desiccant dehumidification effect, the regenerating low pressure air will be heat before flow into the regenerating tower, and then blow to cool. Can save more energy than heatless type, improve the equipment's reliability and using life, and the finished air dryness is better than heatless type dryer's.

 

Little energy were wasted is the predominance of micro heat desiccant air dryer, only 6%. This machine has good dependability for long switch period and little abrasion. It is better than the heatless desiccant air dryer on the desiccant effect.

• Adopt desiccant's capillarity adsorption to absorb the moisture in the air, the equipment is designed twin tower type, one tower is adsorbing when the other tower is regenerating under low pressure air condition.
• Air intake temperature <=45ºC.
• Operating controlling method PLC or microcomputer.
• Installation method: stand flat ground foot installation method.

 

Core Use

• Its primary purpose is to perform deep moisture removal and drying of the compressed air discharged from air compressors, ensuring an exceptionally high level of purity.
• Compressed air directly from an air compressor typically contains significant amounts of saturated water vapor, liquid water, oil, and dust. If left untreated by an adsorption dryer, this moisture can condense within the piping, leading to equipment corrosion, product spoilage, or instrument failure.
• Depending on the required pressure dew point (i.e., the degree of dryness, typically ranging from -40°C to -70°C), Great adsorption dryers.

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Operating conditions

•  Powder pneumatic conveying: In the pipeline transportation of cement, fly ash, flour, and chemical raw materials, dry air is used as the power source to prevent the powder from absorbing moisture and forming lumps in the pipeline, thus avoiding pipe blockage.
• Anti-freezing for northern or outdoor pipelines: In cold regions or during winter, outdoor compressed air pipelines are prone to freezing and cracking. After being treated by the dehumidifier, since the dew point of the gas (such as -40℃) is much lower than the ambient temperature, even in severe winter, the pipeline will not freeze.
• Pre-separation and purification of gas: As a pre-coupling equipment for nitrogen generators and oxygen generators. If moisture is sucked in by the molecular sieve during nitrogen production, it will quickly "poison" and fail. The dehumidifier can provide absolute protection.

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