What Is Scroll Compressor？What Are The Pros And Cons？

1. What is scroll compressor?

Scroll compressor is also called scroll line type volumetric rotary compressor, it is characterized by small size, high efficiency, smooth operation, has been more and more attention, in the small compressor market is very promising. The emergence of high-precision CNC milling machine also brings development opportunities to the development of scroll compressor.

2. How does a scroll compressor work?

A scroll compressor is a compressible volume compressor consisting of a stationary involute scroll disk and an involute moving scroll disk with eccentric gyratory translation. The two double function equation lines of the moving and static scroll disks bite each other.

In the working process of suction, compression and exhaust, the static disk is fixed on the frame, and the dynamic disk is driven by the eccentric shaft and restrained by the anti-rotation mechanism, around the center of the base circle of the static disk, making a very small radius of the plane rotation. The gas is sucked into the periphery of the static disk through the air cartridge, and with the rotation of the eccentric shaft, the gas is gradually compressed in a number of crescent-shaped compression chambers composed of dynamic and static disks, and then continuously discharged by the axial holes in the center part of the static disk.

3. Why should you get a scroll compressor?

① Simple organization, small volume, light weight.

② Less wearing parts, high volumetric efficiency.

③ The machine friction is relatively small, so the mechanical efficiency is high.

④ Multiple working chambers work at the same time, the torque is uniform.

4. What are the disadvantages of scroll compressors?

① As with most rotary machines, scroll machines require high precision of parts, and therefore, the cost of parts processing is high.

② The performance of variable operating conditions is poor, and the working chamber cannot be externally cooled, so it is difficult to export heat.

③ The exhaust pressure is low due to the limitations of the sealing of the working chamber and the strength of the parts.

5. Application and development trend of scroll compressors

The air conditioning compressor  field is the most suitable field for scroll machinery to be used in compressors, and it is also the field with the largest production capacity at present. Because of the relatively high pressure of scroll compressors, they are also suitable for refrigeration compressors . Scroll compressor compression process index is large, is also applied to air compression and other gas compression; scroll machinery can also be applied as a vacuum pump .

Scroll compressors now have an absolute advantage in the field of cabinet air-conditioning. In the field of automotive air-conditioning, they have shown strong competitiveness, and their development lies in expanding their range of cooling capacity, further improving efficiency, using alternative work materials, and reducing manufacturing costs.