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Centrifugal compressor and centrifugal water chilling unit

A centrifugal compressor and diffuser technology, applied in machines/engines, mechanical equipment, non-variable-capacity pumps, etc., can solve the problems of single noise reduction method, single, limited effect, etc., and achieve the effect of reducing noise

Active Publication Date: 2015-05-27
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Regarding the mechanical noise generated by the meshing of the internal transmission parts of the centrifugal compressor, the noise reduction method is generally single by thickening the wall thickness of the gear box and improving the machining accuracy of the gear. The noise reduction method is relatively simple and the effect is limited.

Method used

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  • Centrifugal compressor and centrifugal water chilling unit
  • Centrifugal compressor and centrifugal water chilling unit

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Embodiment Construction

[0025] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0026] Such as figure 1 and figure 2 As shown, the centrifugal compressor of this embodiment includes a suction chamber 1 , an impeller 2 , a diffuser 3 , a volute 8 and an exhaust diffuser pipe 9 . The suction chamber 1 is used to introduce gas to be compressed. The impeller 2 is used to accelerate the gas to be compressed, and the space between two adjacent blades of the impeller 2 is a gas channel 21 . The intake end of the gas channel 21 communicates with the suction chamber 1 . The diffuser 3 includes a pressurization channel 31 for compressing the accelerated gas to be compressed. The pressurized channel 31 communicates with the gas outlet of the gas channel 21 of the impeller 2 . ...

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Abstract

The invention provides a centrifugal compressor and a centrifugal water chilling unit. The centrifugal compressor comprises an impeller, a diffuser, a volute and a refrigerant channel. The diffuser comprises a pressurizing channel; gas flowing through the impeller enters the inlet of the pressurizing channel; the volute is used for collecting the gas pressurized by the diffuser; the refrigerant channel is used for inletting refrigerant from outside and comprises spray holes formed at the inlet end of the pressurizing channel. By means of the technical scheme of the centrifugal compressor, refrigerant sprayed out of the refrigerant channel can effectively block propagation of noise and further reduce noise.

Description

technical field [0001] The invention relates to the field of refrigeration and compressors, more specifically, to a centrifugal compressor and a centrifugal chiller. Background technique [0002] The central air conditioner, especially the centrifugal chiller with the largest refrigeration capacity, will inevitably produce a lot of noise during operation, which is a serious pollution to the surrounding environment and brings great harm to equipment users and maintainers. come to harm. If people are often in such a high-decibel environment, they will become very irritable and irritable. In order to maintain people's physical and mental health and living environment, noise reduction is imperative. [0003] The noise generated during the operation of the centrifugal chiller is roughly composed of three parts: first, the mechanical noise generated during the meshing process of the centrifugal compressor transmission parts in the unit; second, the motor that drives the compress...

Claims

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Application Information

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IPC IPC(8): F04D17/10F04D29/66F04D29/44
Inventor 蒋楠钟瑞兴蒋彩云谢荣王宏兴刘建飞陈玉辉
Owner GREE ELECTRIC APPLIANCES INC
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