Device and method for measuring axial thrust of centrifugal compressor

Abstract

The invention provides a device and a method for measuring an axial thrust of a centrifugal compressor. The device is installed at the tail end side of the main shaft in the casing of the centrifugalcompressor. The device comprises a thrust measuring end face of the thrust measuring device, a restraining end face of the thrust measuring device, a blind flange, a gasket, a thrust bearing and a thrust disk. 1. The measuring method of the invention is realized by the thrust measuring device, the blind flange, the gasket, the thrust bearing, the thrust disk, a signal conditioning system and a data acquisition system. 2. The number of thrust measuring points on the cover plate of the thrust measuring device of the invention can be 3-6, and each thrust measuring point should ensure accurate flatness. 3. The outer ring of the restraining end face of the thrust measuring device of the invention is designed with an o-ring groove, and the thrust measuring device and the blind flange can realizeflexible assembly. The thrust measuring points on the cover plate of the thrust measuring device are in point contact with the inner end face of the blind flange, and the restraining end face of thethrust measuring device is in contact with the gasket.

Description

technical field [0001] The invention provides a real-time measurement method for the axial thrust of a fluid mechanical centrifugal compressor, which belongs to the technical field related to the measurement of the axial thrust of a fluid mechanical centrifugal compressor. Background technique [0002] In the fields of petroleum and chemical industry, the safe and reliable operation of centrifugal compressors directly affects the development of the national economy. For centrifugal compressors, due to the complex internal structure and numerous components, any problem in any part or link during the entire operation stage will cause the failure of the entire device. Among them, due to the axial thrust, the thrust bearing is worn or the thrust pad temperature is too high, so that the whole unit cannot operate normally. This problem is one of the main reasons for the failure of centrifugal compressors, and it is also a problem that plagues the compressor equipment manufacturing...

AI Technical Summary

Problems solved by technology

For centrifugal compressors, due to the complex internal structure and numerous components, any problem with any component or link during the entire operation stage will cause the entire device to fail

Among them, due to the axial thrust, the thrust bearing wears out or the temperature of the thrust pad is too high, causing the entire unit to fail to operate normally. This problem is one of the main reasons for the failure of centrifugal compressors, and it is also a problem that plagues the compressor equipment manufacturing industry.

[0003] Usually the working medium of the centrifugal compressor is not single, and the structure of the whole unit is complex, so if you want to accurately simulate the axial thrust of the centrifugal compressor, there is a certain gap between the result and the actual force situation

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