What is the difference between vortex and screw compressor

Vortex compressors and screw compressors are two different types of compressors, which differ significantly in their working principles, structural characteristics and application areas. Here are the main differences between the two:

1. working principle:

vortex compressor: Its working principle is based on the vortex phenomenon. By guiding the airflow to the rotating vortex blades, the kinetic energy of the gas is converted into pressure energy to realize the compression of the gas. When the gas passes through the rotating vortex blades, a strong vortex is generated, which in turn converts the kinetic energy of the gas into pressure energy. Subsequently, the continuous action of the diffuser and impeller further increases the gas pressure and completes the compression process.

Screw compressor: the gas is compressed by the rotation of the screw. In fact, there is a gap between the rotor tooth surfaces, so it can withstand liquid impact, can transport liquid-containing gas, dust-containing gas, easy to polymerize gas, etc., and is not sensitive to a large amount of lubricating oil (often called wet stroke) in the refrigerant. Good gas transmission regulation. The screw compressor has a relatively simple structure, few wearing parts, can operate under large pressure difference or pressure ratio, and has a low exhaust temperature.

2. structure features:

vortex compressor: The core components include vortex blades, main engine rotor, diffuser and impeller. The special shape design of the vortex blades enables the airflow to generate strong vortices, and the main engine rotor is responsible for driving the vortex blades to rotate.

Screw compressor: mainly composed of screw and casing, screw is usually composed of a pair of intermeshing male and female rotor (screw). This structure makes the screw compressor have high reliability and long service life.

3. application areas:

vortex compressor: Due to its high efficiency and low vibration characteristics, it is suitable for scenarios that require high efficiency and low vibration compressors, such as refrigeration and air conditioning systems.

Screw compressor: widely used in refrigeration, refrigeration, air conditioning and chemical process and other refrigeration equipment. In addition, the screw compressor is often used as the host of the heat pump, used in heating and air conditioning.

To sum up, there are obvious differences between the vortex compressor and the screw compressor in the working principle, structural characteristics and application fields. Which type of compressor to choose depends on the specific application needs and scenarios.