Double-cooling type energy-saving compression heat drying machine and drying method

Abstract

The invention relates to a double-cooling type energy-saving compression heat drying machine. The drying machine comprises: two drying towers provided with upper air pipes and lower air pipes; a valve A1, a valve A3 and a valve A11 which communicate with the upper air pipe of the first drying tower at one ends; a valve A2, a valve A4 and a valve A12 which communicate with the upper air pipe of the second drying tower at one ends;a valve A5 and a valve A7 which communicate with the lower air pipe of the first drying tower; a valve A6 and ae valve A8 which communicate with the lower air pipe of the second drying tower at one ends; a valve A9 and a valve A10 which communicate with the other ends of the valve A5 and the valve A6 at one ends; a first cooler with an inlet communicated with the other ends of the valve A1 and the valve A2 to form a wet air inlet; a first separator communicated with the outlet of the first cooler and the other end of the valve A10 respectively; a second cooler with an inlet communicated with the other ends of the valve A9, the valve A3 and the valve A4; and a second separator respectively communicated with the outlet of the second cooler and the other ends of the valve A7 and the valve A8. The other end of the valve A11 and the other end of the valve A12 are communicated to form a dry air outlet.

Description

technical field [0001] The invention relates to the technical field of pressure swing adsorption, in particular to a double-cooling energy-saving compression heat dryer and a drying method. Background technique [0002] Compressed air is widely used in the production and manufacturing of various industries, and most of the industrial air is required to be anhydrous; if there is water in the compressed air, it will damage the air-using equipment and the final product. [0003] However, compressed air needs energy to remove water and purify it. The most energy-consuming purification equipment is the air dryer. The structure of the air dryer can be obtained from an air dryer disclosed in Chinese Patent Application No. 201921964505.4; there are two types of air dryers: adsorption dryer and freeze dryer, and the effective air supply of the freeze dryer can reach 100%, however, due to the constraints of the working principle of refrigeration, the dew point of the air supply of th...

AI Technical Summary

Problems solved by technology

Its advantages are: simple structure and convenient maintenance; disadvantages are: large gas consumption, high energy grade, small effective gas supply, and sometimes the dew point is not stable enough

Its advantages are: the working cycle is relatively long, and the dew point of the air supply is stable; the disadvantage is: the energy consumption is still too large, not only 6% of the compressed air is consumed, but also a certain amount of electric energy is consumed.

Images