Minor axis draught fan with motor being rear-mounted

A rear-mounted, short-shaft technology, applied in the direction of machines/engines, pump devices, mechanical equipment, etc., can solve the problems that the air flow cannot be in the fresh air flow, the safety factor is low, and the cooling of the secondary fan is difficult, so as to achieve stable motor temperature, The cooling system is smooth and the safety factor is high

Pending Publication Date: 2018-03-09
SHANXI JULONG FAN & BLOWERS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing short-axis fan has difficulty in cooling the secondary fan. During operation, the motor bearing temperature is always at a high temperature stage. The air flow flowing in the motor sealing cavity cannot be in the fresh air flow. Entering the sealed cavity of the motor, the safety factor is low

Method used

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  • Minor axis draught fan with motor being rear-mounted
  • Minor axis draught fan with motor being rear-mounted

Examples

Experimental program
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Embodiment

[0013] figure 2 It is a structural schematic diagram of an embodiment of the present invention; a short-axis fan with a rear motor in the present invention includes guide vanes, impellers, bearing seats, motor cooling air ducts, explosion-proof motors, diffusers, and motor cooling air inlets. It is characterized in that: explosion-proof The motor 7 is at the air inlet, and the order of the components is: explosion-proof motor 7, bearing housing 3, impeller 2, guide vane 1, diffuser 8; there is a motor cooling air duct 6 above the explosion-proof motor 7, and a motor cooling air inlet 9 below, The explosion-proof motor 7 is connected with the impeller 2 through the bearing housing 3, the impeller 2 is aligned with the guide vane 1, and the guide vane 1 is connected with the diffuser 8. In this way, the air flow flowing in the motor sealing chamber can be in the fresh air flow, and inflammable and explosive gas and downhole dirty air cannot enter the motor sealing chamber under...

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PUM

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Abstract

A motor rear-mounted short-axis fan, including guide vanes, impellers, bearing housings, motor cooling air ducts, explosion-proof motors, diffusers, and motor cooling air inlets. Explosion-proof motor, bearing seat, impeller, guide vane, diffuser; there is a motor cooling air duct above the explosion-proof motor, and a motor cooling air inlet below. The explosion-proof motor is connected to the impeller through the bearing seat, and the impeller is aligned with the guide vane, guide vane and diffuser. connection; the beneficial effect is: the air flow flowing in the motor sealing chamber can be in the fresh air flow, and the flammable and explosive gas and the downhole dirty air cannot enter the motor sealing chamber under negative pressure conditions, the explosion-proof safety is high, the cooling system is smooth, and the motor temperature Stable, high fan operation safety factor.

Description

technical field [0001] The invention relates to a short-axis fan, in particular to a rear-mounted short-axis fan with a motor. Background technique [0002] The existing short-axis fan has difficulty in cooling the secondary fan. During operation, the motor bearing temperature is always at a high temperature stage. The air flow flowing in the motor sealing cavity cannot be in the fresh air flow. Entering the sealed cavity of the motor, the safety factor is low. Contents of the invention [0003] The object of the present invention is to provide a short-axis fan with a rear motor in order to overcome the deficiencies of the prior art. [0004] In order to realize the above object, the technical scheme adopted by the present invention is: [0005] A motor rear-mounted short-axis fan, including guide vanes, impellers, bearing housings, motor cooling air ducts, explosion-proof motors, diffusers, and motor cooling air inlets. Explosion-proof motor, bearing seat, impeller, gu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/06F04D29/58
CPCF04D25/06F04D29/5806F04D29/582
Inventor 李世龙吕存栓李春萍谢海军郑新华许建峰
Owner SHANXI JULONG FAN & BLOWERS
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