Application of screw air compressor for water treatment

In the construction of water plants in the past, we generally chose piston screw air compressors. Piston-type screw air compressors have the advantages of low investment cost and large compression ratio, but at the same time, screw air compressors also have problems such as many moving parts, easy to wear, and large maintenance workload.

In the construction of water plants in the past, we generally chose piston screw air compressors. Piston-type screw air compressors have the advantages of low investment cost and large compression ratio, but at the same time, piston air compressors also have problems such as many moving parts, easy to wear, and large maintenance workload.

There are two two-stage air-cooled oil-free piston screw air compressors. Various problems have occurred after less than half a year of use. Piston air compressors have excessive wear of piston rings and pistons, and excessive wear of inlet and outlet valves and valve seats. , Control the oil leakage problem of the oil circuit system; and the gas output of the piston air compressor is obviously insufficient, and the machine is in the loaded state for a long time and cannot be unloaded, thereby increasing its own wear and tear.

Through extensive understanding and comparison of screw air compressors, screw air compressors are selected. After use, I found that the screw air compressor is not only easy to operate, but once the various operating parameters of the screw air compressor are set, the screw air compressor can be completely controlled and monitored by its own computer controller.

These characteristics of the screw air compressor are related to the unique structure and working mechanism of the screw air compressor, and are also closely related to the reasonable system design and intelligent electrical control system of the screw air compressor.

An outstanding feature of the electric control system of the screw air compressor is its high degree of intelligence, and the design of the man-machine interface of the screw air compressor is simple and friendly.

It is based on a computer controller and its control panel as the control center. The main input is the analog signal of the outlet temperature sensor of the compressor and the pressure sensor of the screw air compressor's air supply port and the switching signal of the motor overload. Through the screw air compressor running the built-in control program, the output electric signal triggers the conventional electric control element to realize the control of the screw air compressor.

From the main structure and working mechanism of the screw air compressor, it is not difficult to see that the screw air compressor has fewer moving parts. The screw air compressor has only a pair of intermeshing rotors (there is an oil film between the rotors). There is no reciprocating piston mechanism and complicated air inlet and outlet valve mechanism similar to the piston machine, so the screw air compressor has little wear, more reliable operation and long life.

Secondly, the operation of the main machine of the screw air compressor is similar to that of a turbo machine. The screw air compressor has no unbalanced inertial force, and the gas compression of the screw air compressor is continuous, without impact, and the machine can work smoothly at high speed without special equipment. basis.

In addition, the noise of the screw air compressor can be reduced to a lower level.