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centrifugal compressor

A technology of centrifugal compressors and centrifuges, which is applied in the direction of mechanical equipment, engine manufacturing, machines/engines, etc., can solve the problems of reduced stable working range, enlarged axial dimension, and increased number of parts, so as to achieve stable working range, shaft The effect of small size and low number of parts

Active Publication Date: 2018-06-19
BEIJING POWER MACHINERY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The increase in the number of stages leads to an increase in the number of parts, an increase in the axial dimension, a complex structure, and a reduction in the stable working range

Method used

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  • centrifugal compressor
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Embodiment Construction

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0022] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the descrip...

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Abstract

The invention discloses a centrifugal compressor, which comprises: a core shaft, a centrifugal impeller, a centrifugal casing, a continuous diffuser and a diffuser casing. The centrifugal impeller is sleeved on the mandrel; the centrifugal casing is arranged around the centrifugal impeller, and the centrifugal casing and the centrifugal impeller are separated to form a first air flow channel; the continuous diffuser is connected with the centrifugal impeller and is located at the outlet of the first air flow channel, continuous The diffuser is a vaned diffuser; the diffuser casing is connected with the centrifuge casing and surrounds the continuous diffuser, and the second airflow connected with the first airflow channel is formed between the diffuser casing and the continuous diffuser aisle. The centrifugal compressor according to the embodiment of the present invention overcomes the shortcomings of the axial flow compressor in the application of small turbojet engines due to the centrifugal structure. At the same time, compared with the traditional centrifugal compressor, this structure reduces the number of parts.

Description

technical field [0001] The invention relates to the technical field of compressor manufacturing, in particular to a centrifugal compressor. Background technique [0002] The centrifugal compressor has been widely used in small turbojet engines due to its high single-stage boosting ratio, simple structure, few parts, small axial size, and wide stable working range. With the development of modern military theory, small turbojet engines are facing great demand as power devices for missiles and unmanned aerial vehicles. At present, most of the small turbojet engines that have been successfully developed in China still use axial flow compressors. Compared with the centrifugal compressor, the single-stage pressure ratio of the axial flow compressor is lower, and more stages are required to achieve the same pressure ratio. The increase in the number of stages leads to an increase in the number of parts, an increase in the axial dimension, a complex structure, and a reduction in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/44
CPCF04D29/448F05D2250/52F04D29/444
Inventor 蔡文哲陆瑶张哲马同玲
Owner BEIJING POWER MACHINERY INST