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Impeller and centrifugal compressor

A technology of impeller and compression section, which is applied in the field of centrifugal compression equipment, can solve the problems of low energy efficiency of compressors, and achieve the effect of ensuring energy efficiency and effectively controlling size

Pending Publication Date: 2021-01-15
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem of low energy efficiency of a compressor with a small impeller size when applied to a refrigerant with a low cooling capacity per unit volume, the present invention proposes an impeller and a centrifugal compressor, which can effectively control the size while ensuring energy efficiency technical effect of size

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  • Impeller and centrifugal compressor
  • Impeller and centrifugal compressor
  • Impeller and centrifugal compressor

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Embodiment Construction

[0033] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0034] Such as Figure 1 to Figure 3 As shown, in one embodiment, an impeller 10 is provided, including a hub 11 and a plurality of blades 13, the blades 13 are arranged on the outer peripheral surface of the hub 11, and the plurality of blades 13 are arranged on the circumference of the ...

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Abstract

The invention relates to an impeller and a centrifugal compressor. The impeller comprises a hub and a plurality of blades, the blades are arranged on the outer circumferential surface of the hub, theblades are distributed at intervals in the circumferential direction of the hub, a compression channel is defined by the adjacent blades and the hub, and the volume of the compression channel is gradually reduced in the airflow circulation direction. The compression channel comprises a suction compression section and a middle compression section which are communicated with each other, the suctioncompression section is defined by the front edges of the blades and the hub, and the volume change rate of the suction compression section is larger than that of the middle compression section in theairflow circulation direction. Therefore, the volume compression amount of external fluid is small when the external fluid just enters the compression channel, and the sudden change condition is avoided. Therefore, the flow loss of fluid entering the compression channel is reduced, the compression energy efficiency is guaranteed, and the size of the impeller can be controlled within a small rangeunder the condition of the same refrigeration capacity requirement.

Description

technical field [0001] The invention relates to the technical field of centrifugal compression equipment, in particular to an impeller and a centrifugal compressor. Background technique [0002] In the air conditioning system, the refrigerant is mainly used as the medium for cold and heat exchange to achieve the purpose of cooling or heating. The compressor is mainly used to work on the refrigerant, so that the refrigerant can continuously circulate and exchange heat in the air conditioning system. With the development of society, people pay more and more attention to environmental issues. In order to reduce the damage of refrigerants to the environment, the GWP value (Global Warming Potential, global warming potential value) and ODP value (ozone depression potential, ozone depletion potential value) are low. Refrigerants are gradually being developed. However, refrigerants with low GPW and ODP values ​​have the problem of low cooling capacity per unit volume. During the u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/28F04D29/30F04D29/66F04D17/10
CPCF04D17/10F04D29/284F04D29/30F04D29/666
Inventor 张治平亓静利钟瑞兴蒋楠
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION