Exhaust casing assembly used for test piece of gas compressor

Abstract

An exhaust casing assembly used for a test piece of a gas compressor comprises an outlet casing assembly, a front exhaust outer ring section, a front exhaust inner ring section, a test lead, an exhaust casing connecting ring, a rear exhaust outer ring section, a rear exhaust inner ring section and a balancing disc sealing ring. The whole casing assembly is formed through assembly of the exhaust casing connecting ring. The front end of the outlet casing assembly is connected with an outlet of the gas compressor. The rear end of the rear exhaust outer ring section is connected with a rear exhaust section of the test piece of the gas compressor. The outlet casing assembly and the rear exhaust outer ring section are connected with a front component and a rear component in an overlapped mode. The outlet casing assembly, the front exhaust inner ring section, the rear exhaust outer ring section and the rear exhaust inner ring section are of cantilever structures. The exhaust casing assembly has the advantages that the exhaust casing assembly is applied to the test piece of the gas compressor which is high in pressure ratio and large is flow, the requirements for balanced axial force, exhaust flow pass switching and the like of the test piece of the gas compressor are met, and meanwhile the relative requirements for testability, assembling capacity, reliability, maintainability and the like of the test piece can also be met.

Description

technical field [0001] The invention relates to the field of compressors, in particular to an exhaust casing assembly which can be used for a compressor test piece. Background technique [0002] In order to connect the compressor test piece to the test bench safely and reliably, it is necessary to have a complete inlet and exhaust section of the test piece. The interface between the exhaust section of the test piece and the compressor test bench is fixed. When the test piece does not need a balance disc, the exhaust section can be directly connected to the stator casing of the compressor. When the test piece needs a balance disc to balance the axial When the pressure is high, it cannot be realized only by connecting the inner and outer casings with the support plate of the rear exhaust section assembly of the test piece. [0003] In the design of the rear section of the compressor test piece, the inner and outer casings forming the flow passage are connected through the sup...

AI Technical Summary

Problems solved by technology

The interface between the exhaust section of the test piece and the compressor test bench is fixed. When the test piece does not need a balance disc, the exhaust section can be directly connected to the stator casing of the compressor. When the test piece needs a balance disc to balance the axial When the force is high, it cannot be realized only by connecting the support plate of the rear exhaust section assembly of the test piece to connect the inner and outer casings.

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