ZDG combined low – dew point compressed air dryer
Compressed air is used as the main power source in the modern industrial production process, however, there are a lot of dust (solid), oil droplets, oil mist, water droplets and water mist in the air. These pollutants will lead to lower operating efficiency of process equipment, maintenance costs, downtime increased, product quality decline, and even the entire system can not work properly. It is necessary to dry and clean the compressed air before using compressed air.
Combined low dew point drying machine is a low dew point drying equipment, which is integrated with two bits of freeze drier and adsorption type dryer. Freezing type drying machine has the advantages of no air loss, low energy consumption, but has the limitation of dew point temperature; while the dryer has the advantages of low dew point, but the disadvantage of large capacity loss. Combined low dew point dryer developed by the company’s advantages of cold and dry machine and dry machine, through the reasonable collocation and pipeline capacity, to maximize the advantages of the two, reaching the highest price.
Working principle of combined low dew point drying machine
Combined low dew point dryer in Hangzhou poly air separation equipment Co. Ltd production is the cooling humidity reduction of pressure swing adsorption and drying principle, so a lot of moisture condensation droplets discharged from a water machine, in order to achieve the purpose of drying compressed air.
Combined low dew point drying machine is a low dew point drying equipment, which is integrated with two bits of freeze drier and adsorption type dryer. Using low temperature adsorption principle, low consumption, energy saving, intelligent operation, to meet the different needs of users.
Compressed air first enters the preheater and dried at low temperature to reduce the temperature of compressed air exchange, then enters into the evaporator is further cooled to 2 DEG C, the temperature of water vapor molecules has become the most liquid water is discharged, then the temperature is low the compressed air into the cylinder is further adsorption drying, lower the dew point the product gas, low temperature drying compressed air into the heat exchanger, cooling high temperature moist air, and temperature increased, the output of the outer pipe to prevent condensation, heating and compression after a small part of air for regeneration of the adsorption tower, improve regeneration efficiency, reduce energy consumption.
Working pressure: 0.6-0.8Mpa (according to the request to provide 1.0-3.0Mpa)
Inlet temperature: <45
Cooling way: water cooling, air cooling
Product gas dew point: -60_-70
Water temperature: less than or equal to 32 DEG C
Inlet pressure: 0.2-0.4Mpa
Regeneration gas consumption: 3-6%