Housing structure of centrifugal compressor

Abstract

The invention relates to a housing structure of a centrifugal compressor. The housing of the compressor is detachable and convenient to maintain and process. The technical scheme includes that a diffuser is detached to a diffuser blade and a diffuser covering plate, wherein a tooth slot of the diffuser covering plate and a tooth slot of a compressor volute are connected, an O-shaped sealing ring is arranged at the connection position of the compressor volute and the diffuser, and the leakage is avoided. By the aid of the structure of the compressor, the welding seam number is reduced, the whole machine processing is omitted, the processing difficulty and the processing cost are reduced effectively, the diffuser covering plate is easy to wear, the diffuser covering plate can be replaced during maintenance after being designed to a part separately, the whole compressor housing cannot be wasted and the maintenance cost and the maintenance period are greatly reduced.

Description

technical field [0001] The invention belongs to an environmental control system, and relates to a centrifugal compressor shell used for a turbine cooler. Background technique [0002] The main function of the centrifugal compressor housing of the turbo cooler is to pressurize and collect the incoming air. In the existing design scheme, the compressor shell is designed as an integral welded structure, and then the surfaces with high matching requirements are integrally machined, such as figure 1 shown. [0003] This kind of compressor housing structure needs to be finished after all parts are welded together, and the processing is relatively difficult, and the processing accuracy is not easy to control. in addition, figure 1 The wear-prone part shown in is the surface mating with the compressor impeller. If the high-speed rotating impeller rubs against the compressor casing, it will cause surface damage and the entire compressor casing will be scrapped, resulting in increa...

AI Technical Summary

Problems solved by technology

[0003] This kind of compressor shell structure needs to weld all parts together before finishing, which is difficult to process and difficult to control the machining accuracy

in addition, figure 1 The wear-prone part shown in is the surface mating with the compressor impeller. If the high-speed rotating impeller rubs against the compressor casing, it will cause surface damage and the entire compressor casing will be scrapped, resulting in increased maintenance costs and shorter maintenance cycles. extend

Images