Turbo-charger single-stage prototype centrifugal compressor interstage pressure test structure

A technology of centrifugal compressor and turbocharger, which is applied in pump testing, machine/engine, measuring fluid pressure, etc. It can solve the problem of not finding the static pressure measurement between compressor stages, etc., and achieve the effect of simple structure and easy realization
CN101545818AInactive Publication Date: 2009-09-30CHINA NORTH IND GRP NO 70 RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA NORTH IND GRP NO 70 RES INST
Publication Date
2009-09-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to turbo-charger technical field, particularly relating to centrifugal compressor interstage pressure test structure, especially a turbo-charger single-stage prototype centrifugal compressor interstage pressure test structure. The test structure includes a compressor spiral casing, a blower impeller and a compressor back disk. The spiral casing is fixed on the compressor back disk through bolts. The blower impeller is fixed on the shaft seal sleeve of the compressor back disk by the shaft end nuts. The compressor spiral casing is divided into a split spiral casing and a sleeve at the position of diameter 180 mm in the middle on the side wall of the compressor spiral casing diffuser. The split spiral casing and the sleeve are fixably connected with the contact surface of the sleeve by the hot charging face of the split spiral casing. The invention measures the inner pressure of the spiral casing and the diffuser on the centrifugal compressor prototype model machine and measures the enclosing cover pressure in the circumferential direction 360 DEG scope. The test structure has simple structure and easy implement based on the prototype model machine.
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Description

technical field

[0001] The invention belongs to the technical field of turbochargers, in particular to an interstage pressure test structure of a centrifugal compressor, in particular to an interstage pressure test structure of a turbocharger single-stage prototype centrifugal compressor. Background technique

[0002] With the improvement of power density, high-pressure ratio and ultra-high-pressure ratio turbochargers have become the current development trend. However, with the increase of the boosting ratio, the centrifugal compressor enters into a transonic flow state, and its flow range narrows sharply and its efficiency decreases; at the same time, the structure of the transonic centrifugal compressor is very complicated, and it is difficult to rely solely on the existing CFD numerical simulation technology. Get reliable results. In order to expand the range of transonic state flow and improve efficiency, it has become a current development trend and research hotspot t...

Claims

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