Turbine compressor

Abstract

The invention discloses a turbine compressor. The turbine compressor comprises a rotating shaft and a first level rotor or a rotor above the first level. The rotor is mainly formed by an air cylinder, an impeller, forward arc-shaped blades and an end cover; the air cylinder and the impeller which are integrated into a whole are fixedly arranged on the rotating shaft; the forward arc-shaped blades are arranged at the rear end of the impeller. According to the turbine compressor, the air cylinder and the centrifugal impeller which are coaxial rotate simultaneously, relative motion is not generated between the air cylinder and the impeller, and meanwhile relative motion is not generated between different levels, so that clearance fit between the dynamic seal and the high accuracy is not needed to be designed, machining, manufacturing and assembling are simple, and the sealing performance is good.

Description

technical field [0001] The invention relates to a gas compressor, in particular to a turbo compressor in which a cylinder and an impeller rotate coaxially. Background technique [0002] The turbo compressor makes the gas move at high speed through the impeller, and then converts the kinetic energy of the gas movement into pressure energy. In order to obtain sufficient pressure, a multi-stage impeller is required. Whether it is a centrifugal or axial flow turbine, it needs to work under the interaction of the rotating impeller (rotor) and the stator (fixed blades or cylinder). For example, the structure of a centrifugal turbocompressor is composed of an impeller (also called a rotor) and a cylinder (also called a stator). When the impeller rotates, the air flow flows to the outer edge of the impeller at high speed. During this process, the gas obtains kinetic energy. The gas enters the inner edge of the next-stage impeller through the bend in the cylinder, and the kinetic e...

AI Technical Summary

Problems solved by technology

Since the cylinder is fixed, there is relative motion between the impeller and the cylinder, and the rotating speed of the rotor is very high. In order to prevent the high-pressure gas from returning between the stages, a labyrinth seal must be used, which requires high manufacturing precision and assembly precision, resulting in Expensive, especially when manufacturing small flow compressors, as the width of the impeller is very small, making it almost impossible to manufacture

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