Low-Dew-Point Industrial Combined Air Dryer

Working Principles

Refrigeration Stage: Preliminary Cooling & Condensation

The combined air dryer begins with the refrigeration stage, where high-temperature, high-humidity compressed air is cooled. This cooling process causes gaseous water molecules to condense into liquid water, which is then separated and drained away. The refrigeration stage leverages energy-efficient cooling technology to reduce air temperature without excessive power consumption.

Adsorption Stage: Deep Dehumidification

After preliminary cooling, the air enters the adsorption stage, where a high-performance desiccant absorbs any remaining moisture. This stage ensures the air reaches an ultra-low dew point, far below what standalone refrigeration dryers can achieve. The desiccant is regenerated periodically to maintain its effectiveness, using a combination of heating and blowing cooling for optimal efficiency.

Heat Recovery & Energy Optimization

A key part of the working principle is heat recovery, where the dried, low-temperature air exchanges heat with the incoming high-humidity air. This pre-cools the incoming air, reducing the load on the refrigeration system and lowering energy consumption. The heated dry air is also used for desiccant regeneration, maximizing energy efficiency.

The system is perfect and runs smoothly:Excellent refrigeration compressor and components are selected, the system is designed perfectly, and excellent pneumatic butterfly valves are selected inside the machine to ensure the stable operation of the equipment.

 Electronic drainer:It adopts imported technology brands and selects an enlarged electronic automatic drainer to eliminate hidden dangers and faults caused by blockages.

Adsorption system:The design and manufacture of the tower body conform to the specifications of the pressure vessel, the selection of excellent desiccant, high compressive strength, non-hydrolysis, the adoption of special design, the continuous supply of air during the switching of the adsorption tower, the slow and stable filling program and switching design, the independent filling port and discharge port, easy to replace the adsorbent.

Flexible operation and clear layout:The panel is equipped with a clear process flow chart, which can directly display the operating status of the equipment, and the output is flexible and reliable.

Compressed Air System Configuration Drawing

The Luoyou series dryer operates continuously under the conditions of rated working conditions (i.e., inlet temperature 38C, inlet pressure 7Kgf/cm2, relative humidity 100% and maximum load 100%), and the outlet dew point will be guaranteed to reach the original design value. To choose a refrigerated dryer correctly, it is necessary to take into account the actual flow of compressed air, pressure, temperature, ambient temperature, and the required pressure dew point temperature. When the "pressure dew point" of compressed air is required to be below zero, a suction dryer is a better device for compressed air treatment.

FAQ

How does the combined air dryer differ from standalone refrigeration dryer or adsorption dryer?

The combined model integrates both technologies, offering the energy efficiency of a refrigeration dryer and the low dew point performance of an adsorption dryer. It eliminates the limitations of standalone units, providing a balanced solution for efficiency and performance.

Can the combined air dryer handle high-temperature inlet air?

Yes, the dryer is designed to process high-temperature inlet air, with a pre-cooling stage that prepares the air for efficient condensation and adsorption. It adapts to varying inlet conditions without sacrificing performance.

What maintenance is required for the combined air dryer?

Routine maintenance includes checking and replacing the desiccant (when needed), inspecting the automatic drainer, and cleaning filters. The long desiccant lifespan and intelligent design minimize maintenance frequency.