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Centrifugal ventilator

A centrifugal fan and casing technology, applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of large energy loss, large friction ratio between gas and blades, large space distance, etc., to achieve energy loss Small, small windward area, size reduction effect

Inactive Publication Date: 2012-12-26
李凡
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  • Summary
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Problems solved by technology

The disadvantage of this centrifugal fan is that the rear disk is a flat disk, and the space distance between the rear disk and the front disk is relatively large, which requires that the blades connected between them are relatively large, and the blades are large, and the friction between the gas and the blades when the impeller rotates The ratio is large, and the energy loss is large. For a motor with a small parameter margin, its service life is short, and choosing a motor with a large parameter margin will not only waste electric energy, but also increase noise pollution.

Method used

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  • Centrifugal ventilator

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Embodiment Construction

[0009] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the embodiments and accompanying drawings. The embodiments are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0010] Such as figure 1 Shown is an embodiment of the centrifugal fan of the present invention, comprising a horizontal support 1, a plurality of rubber shock absorbers 2 are provided on the bottom surface of the horizontal support 1, a casing 3 and a support 4 are arranged on the horizontal support 1, and on the support 4 An electric motor 5 is provided, and a main shaft 6 protrudes from one end of the electric motor 6 , the top of the main shaft 6 is inserted in the casing 3 and is connected with an impeller 7 , and the outer end of the impeller 7 is provided with an air inlet 8 .

[0011] The present invention omits the front disk and the rear...

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Abstract

The invention discloses a centrifugal ventilator which comprises a horizontal bracket. A plurality of rubber shock absorbers are arranged on the bottom surface of the horizontal bracket; a casing and a bracket are arranged on the horizontal bracket; a motor is arranged on the bracket; a main shaft extends from one end of the motor; the top end of the main shaft is inserted into the casing and connected with an impeller, and an air inlet is arranged at the outer end of the impeller. The centrifugal ventilator has the advantages of being simple in structure, loss in energy loss, energy-saving and reduced in noise pollution.

Description

Technical field: [0001] The invention relates to a fan, especially a centrifugal fan. Background technique: [0002] At present, the existing medium and low pressure centrifugal fan includes a motor, the rotating shaft of the motor is covered with an impeller, the outside of the impeller is equipped with a casing, the casing is provided with an air inlet and an air outlet, and the impeller includes a rear disc, a front disc , blades are connected between the rear disc and the front disc. The disadvantage of this centrifugal fan is that the rear disk is a flat disk, and the space distance between the rear disk and the front disk is relatively large, which requires that the blades connected between them are relatively large, and the blades are large, and the friction between the gas and the blades when the impeller rotates If the ratio is large, the energy loss is large. For a motor with a small parameter margin, its service life is short, and choosing a motor with a large pa...

Claims

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Application Information

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IPC IPC(8): F04D29/66
Inventor 李凡
Owner 李凡
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