High and low temperature coolant tester is a device widely used in various industries to simulate different temperature environments to test the performance of materials, components or products. One of its core components is the refrigeration compressor, whose role is to provide the required cooling capacity for the test machine. This article will detail several major classifications of cold compressors for high and low temperature coolant testing mechanisms to help readers better understand this critical component.

First, reciprocating compressor

1, working principle: reciprocating compressor through the reciprocating movement of the piston in the cylinder to compress the refrigerant, so as to achieve the cooling effect.

2, advantages: simple structure, reliable work, easy maintenance.

3, disadvantages: due to the impact and friction caused by the reciprocating movement of the piston, the reciprocating compressor is noisy and the efficiency is relatively low.

4, application scenarios: Generally used for small or medium-sized high and low temperature coolant testing machine, to meet the basic cooling needs.

Two, screw compressor

1. Working principle: The screw compressor compresses the refrigerant through two meshing screws to achieve a continuous and smooth cooling process.

2, advantages: compact structure, smooth operation, low noise, high efficiency.

3, disadvantages: high manufacturing precision requirements, relatively high cost.

4, application scenario: suitable for medium and large high and low temperature coolant testing machine, especially need to work continuously or have high requirements for cooling efficiency occasions.

Three, centrifugal compressor

1, working principle: Centrifugal compressor through the centrifugal force will be thrown out of the refrigerant from the center, so as to form a high pressure at the exit, to achieve cooling effect.

2, advantages: simple structure, small size, light weight, suitable for high-speed and large flow applications.

3, disadvantages: more sensitive to refrigerant flow and pressure changes, may lead to unstable operation.

4, application scenario: suitable for large high and low temperature coolant testing machine or need high-speed cooling occasions.

Four, scroll compressor

1. Working principle: Scroll compressor compresses refrigerant through two meshing scroll discs to achieve an efficient and smooth cooling process.

2, advantages: compact structure, light weight, high efficiency, low noise.

3, disadvantages: manufacturing is difficult, the cost is relatively high.

4, application scenario: suitable for small and medium-sized high and low temperature coolant testing machine or on the occasion of high cooling efficiency and noise requirements.