Process Flow Diagram of Heated Regeneration Air Dryers 
 

Working Principle of Heated Regeneration Air dryers :
With taking advantage of the surface absorbability of porous solid material, the heated regeneration air dryer is a kind of equipment, which can absorb the moisture to get satisfied air with lower dew point, air dryer and better cleanliness.
It adopts active alumina, whose diameter is almost same with water molecule, as the adsorbent, it's also in line with the world advanced pressure swing adsorption (PSA) principle, that is to say, when absorbing in normal temperature, the pressure of water molecule in air is big than that in desiccant, so the former will be sucked into the desiccant, then condense to water drop, meanwhile the liberated heat will be stored at the upside of the tower. As regenerating, in order to temporary lower the desiccant absorption ability to let the water molecule effuse out, about 7% dry air will go through the regeneration tower slowly after the air being heated up to 150ºC, the stored heat also will take part in regeneration process for energy saving. For the circular employ of absorption-regeneration-absorption, the desiccant dries compressed air continuously to get deeply dried air. The technical performance already has reached the international high-level standard. It can be you ideal equipment with dew point lowering than -40ºC.
The working alternating cycle of twin tower can ensure stable output of satisfied compressed air. Its pressure dew point which can make up to -40ºC is definitely can obtain deeply dry and oil-free compressed air with high purity to meet the customer high requirements. Due to the heater, it can keep good regeneration performance with less purge air loss.
 

Shanli SDXW-PB/PF   series heatless  Air Dryer  SPECIFICATION

Heated Desiccant Air Dryer

Working condition and technical data
Maximum inlet air temperature:45ºC
Pressure range:0.5-1.0Mpa
Pressure dew point:-20ºC ~ -40ºC
Inlet oil content:≤0.1PPm
Regeneration gas consumption:≤7%
Control mode: microcomputer automatic control / PLC control
Power supply: 1-6nm 3 / min, AC 220 V / 50 Hz
AC 380 V / 220 V / 50 Hz for 8nm 3 / min and above
Period: T = 2-6 (H)
Design condition: inlet temperature: 38 ºC
Ambient temperature: 38 ºC
Working pressure: 0.7MPa
Pressure loss: ≤ 3% of design pressure
Note: other special requirements are welcome to customize.
 

Characteristics of micro heat regeneration adsorption dryer

• 2-6 hours standard cycle;
• The pressure dew point can reach - 20 ºC to - 40 ºC;
• The regeneration gas consumption is less than 7%;
• High quality switching valve, stable and reliable, can ensure the integrity of the working process and prolong the working life of components;
• The activated alumina with high hygroscopicity is selected with uniform shape and size, high strength, low dew point, less dust and long service life;
• The unique regeneration pipeline design is adopted to ensure that the regeneration gas can be evenly distributed when the regeneration gas is heated and cooled, so that the adsorbent in the center of the adsorption tower is heated evenly, the heat dissipation is fast, and the regeneration is complete;
• The heater has reasonable design, good dehumidification and regeneration effect, low air consumption, high heating efficiency, and greatly reduces energy consumption;
• Programmable microcomputer controller, cycle time, adsorption, regeneration working time, heating time, heating temperature can be adjusted to achieve your satisfactory dew point value.