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Low-denseness blade diffuser and production method thereof

A manufacturing method and low-consistency technology, applied to machines/engines, components of pumping devices for elastic fluids, non-variable pumps, etc., can solve the problems of low efficiency and poor adaptability of vane diffusers, and achieve The effect of widening the working range, improving efficiency and increasing the degree of diffusion

Active Publication Date: 2013-08-14
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The invention provides a low-consistency vane diffuser and its manufacturing method, which solves the shortcomings of the existing vane diffuser, such as low efficiency and poor adaptability to variable working conditions

Method used

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  • Low-denseness blade diffuser and production method thereof
  • Low-denseness blade diffuser and production method thereof
  • Low-denseness blade diffuser and production method thereof

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Embodiment Construction

[0026] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0027] The invention adopts low-consistency blades to mainly increase the diffusion degree, and adopts a bladeless diffuser to evenly flow the airflow before the airflow enters the blades and after it flows out of the blades, so that the entire diffuser can work normally in a wide operating range , and obtain high-efficiency diffusion, thereby reducing compressor power consumption.

[0028] Such as figure 2 , image 3 As shown, the low-consistency vane diffuser of the present invention consists of an inlet vaneless section 10 , a low-consistency vane section 20 and an outlet vaneless section 30 . The low-consistency blade diffuser of the present invention mainly has the following characteristics:

[0029] The inlet bladeless section 10 is locate...

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Abstract

The invention provides a low-denseness blade diffuser and a production method thereof. The low-denseness blade diffuser is arranged between an outlet of vane wheels and an inlet of volutes of a compressor, and comprises a non-blade inlet section, a low-denseness blade section and a non-blade outlet section. The inlet of the non-blade entrance section is communicated with the outlet of the vane wheels, blades are arranged inside the low-denseness blade section, and the inlet of the low-denseness blade section is communicated with the outlet of the non-blade inlet section, the inlet of the non-blade outlet section is communicated with the outlet of the low-denseness blade section and the outlet of the same is communicated with the inlet of the volutes. The low-denseness blade diffuser has the advantages that diffusion degree of the diffuser is improved, wasted works of the compressor is reduced and efficiency is improved by adopting the low-denseness blade; and the non-blade sections are addedly arranged on the front and back of the blade section to overcome defects of regular poor adaptability of variable working conditions of the blade diffuser, impact losses under variable working conditions are reduced, and working ranges of the compressor are widened.

Description

technical field [0001] The invention relates to the field of centrifugal compressors, in particular to a low-consistency vane diffuser and a manufacturing method thereof. Background technique [0002] According to statistics, more than 90% of the time of the centrifugal chiller is in partial load operation, and the partial load performance of the chiller directly affects the annual operating power consumption of the chiller. At the same time, the national standard GB / T18430.1-2007 also puts forward the regulations and requirements of the comprehensive partial load performance coefficient IPLV. Therefore, for the design of centrifugal refrigeration compressors, it is necessary not only to ensure high full-load efficiency, but also to pursue the performance index of part-load, and to ensure a wide range of operating conditions. [0003] The reasonable use of the diffuser can make the compressor have good performance. Since the airflow coming out of the impeller still has a l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/44
Inventor 钟瑞兴张治平蒋楠谢蓉蒋彩云傅鹏闫秀兵
Owner GREE ELECTRIC APPLIANCES INC
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