Blower

A blower and blower technology, applied in the direction of mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of difficult adjustment of air volume, complicated processing and installation, and large starting current, so as to solve the surge phenomenon, installation and processing Convenience, eliminates the effect of air separation

Inactive Publication Date: 2012-03-21
HARBIN DONGAN ENGINE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the traditional high-speed blowers use a gear box combined with a low-speed motor. The processing and installation are complicated, the volume is large, the efficiency is low, and the starting current is large and easy to form an impact on the power grid. The air volume is not easy to adjust.

Method used

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Embodiment Construction

[0008] As shown in the figure, the blower includes a high-speed permanent magnet motor and a fan. The rotor of the high-speed permanent magnet motor is fixedly connected with the fan impeller 5 and can rotate synchronously; The large blades and small blades, the number of large blades and small blades are 11 respectively, the fan housing 6 is connected with the high-speed permanent magnet motor housing 1, and the fan housing 6 is provided with an annular guide cone 3, so The guide cone 3 described above is fixed on the motor housing 1 and forms an annular air chamber 9 with the fan housing 6. The motor housing 1 is provided with an air inlet 2 and communicates with the annular air chamber 9. The fan housing The body 6 is in the shape of a volute, and a swirl-shaped air passage 4 is arranged inside, and one side communicates with the annular air cavity 9, and the other side communicates with the air outlet elbow 7, and the air outlet elbow 7 is also provided with an air release ...

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PUM

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Abstract

The invention relates to a blower comprising a high-speed permanent-magnet machine and a blower body, wherein the rotor of the high-speed permanent-magnet machine is fixedly connected with the impeller of the blower body; the rotor of the high-speed permanent-magnet machine and the impeller of the blower body can rotate synchronously; the impeller is arranged in the housing of the blower body; large blades and small blades are mounted on the impeller alternately; the housing of the blower body is connected with that of the high-speed permanent-magnet machine; an annular air cavity is formed in the housing of the blower body; an inlet duct communicated with the annular air cavity is arranged on the housing of the high-speed permanent-magnet machine; the housing of the blower body takes the shape of a volute; a swirl-shaped air passage is arranged in the housing of the blower body; one side of the swirl-shaped air passage is communicated with the annular air cavity; and the other side of the swirl-shaped air passage is communicated with a gassing bent pipe. The blower provided by the invention has the advantages that the reliability of the rotor is high; the mounting and the processing are simple; the size is small; the efficiency is high; the starting current is small; and the wind volume adjusting is convenient.

Description

technical field [0001] The invention relates to a blower. Background technique [0002] Under design conditions, fans with a wind pressure of 30kpa to 200kpa and a compression ratio of 1.3 to 3 are called blowers. Traditional high-speed blowers mostly use a gear box combined with a low-speed motor. The processing and installation are complex, large in size, low in efficiency, and the large starting current is likely to cause impact on the power grid, and the air volume is difficult to adjust. Contents of the invention [0003] The purpose of the present invention is to provide a blower with good reliability of the rotor, ie simple installation and processing, small size, high efficiency, small starting current and convenient air volume adjustment. [0004] The technical scheme of the present invention is that the blower includes a high-speed permanent magnet motor and a fan, and the rotor of the high-speed permanent magnet motor is fixedly connected with the fan impeller ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/08F04D29/28F04D29/42
Inventor 何民脱烨张宏杰耿加民刘丛红时晓军冯占祥孙海龙付有志张琳琳刘丽娜仝云峰
Owner HARBIN DONGAN ENGINE GRP
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