Exhaust fan

An exhaust fan and air duct technology, applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve problems such as the inability to ensure the safety of exhaust fans, reduce maintenance times, extend service life, The effect of improving work efficiency

Inactive Publication Date: 2011-05-25
江苏兆年智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no exhaust fan that can be used in these fields on the market. It can only be simply modified on site and adde

Method used

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Embodiment Construction

[0026] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with the accompanying drawings and specific implementation methods.

[0027] figure 1 is the front view of the exhaust fan of the present invention; figure 2 It is a schematic diagram of the left view structure of the present invention; image 3 is a top view of the present invention; Figure 4 yes image 3 A schematic diagram of the cross-sectional structure along the direction of A-A; Figure 5 It is a schematic cut-away view of the internal structure of the present invention; Figure 6 It is a perspective view of the exhaust fan of the present invention.

[0028] The exhaust fan of the present invention includes a housing 1, a motor 5, a motor bracket 11, a sealing ring 8, a sealing ring fixing bracket 9 and blades 7, the housing 1 is cylindrical, and is composed of...

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PUM

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Abstract

The invention relates to an exhaust fan. The exhaust fan comprises a shell, a motor, a motor support, a sealing ring, a sealing ring fixing support and blades, wherein the shell is cylindrical and consists of an inner wall and an outer wall; an air passage is formed between the inner wall and the outer wall, is shaped like a Chinese character 'hui' and is opened at the upper and lower ends; the motor support is arranged in a hollow cavity formed in the middle of the inner wall; the two ends of the motor support are fixed on the inner wall; the motor is suspended on the motor support; a motor shaft is extended into the air passage at the upper end of the shell through the motor support and the inner wall of the shell to be connected with the blades; the sealing ring is arranged at the contact place between the motor shaft and the inner wall; the sealing ring fixing support is arranged on the sealing ring; and the sealing ring fixing support is fixed on the inner wall. Because the motor is well separated from the workpieces and fluid, the exhaust fan can play good role in preventing water, dust and explosion and insulating heat; the maintenance time of the motor is reduced; the working efficiency is improved; and the service life of the motor is prolonged. Therefore, the exhaust fan can be used in a severe working environment.

Description

technical field [0001] The invention relates to a fan, in particular to an explosion-proof, heat-insulating and waterproof exhaust fan. [0002] Background technique [0003] Exhaust fan is a kind of machine that relies on input mechanical energy or electric energy to increase gas pressure and discharge gas. It is widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, boilers and Ventilation and induction of industrial furnaces, cooling and ventilation of air conditioning equipment and household appliances, drying and sorting of grain, wind tunnel wind source and inflation and propulsion of hovercraft, etc. When the exhaust fan is working, because the gas flow rate is low and the pressure changes little, it is generally not necessary to consider the change of the gas specific volume, that is, the gas is treated as an incompressible fluid. [0004] Exhaust fans currently on the market are generally p...

Claims

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Application Information

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IPC IPC(8): F04D25/08F04D29/58
Inventor 何群伟
Owner 江苏兆年智能科技有限公司
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