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Anti-surge ring for axial flow fan

An axial flow fan and anti-surge technology, applied in the direction of mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems affecting the normal use of axial flow fans, affecting the service life of various components, and prone to surge, etc., to achieve The installation is convenient and fast, the effect of reducing relative vibration and preventing surge phenomenon

Inactive Publication Date: 2014-10-08
SHANXI ANRUI FAN ELECTRIC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problems of the existing axial flow fans that are prone to surge phenomenon, which seriously affects the normal use of the axial flow fans and the service life of each component, and provides a fast, convenient and anti-surge Axial fan anti-surge ring

Method used

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Embodiment Construction

[0012] The present invention is described in detail below in conjunction with accompanying drawing and embodiment:

[0013] Such as figure 1 and figure 2 As shown, the anti-surge ring of the axial flow fan in this embodiment includes a connecting flange 1, a small tube 2, two surge flanges 3, an outer ring 4, 36 spoilers 5, and an inner guide ring 6 , quick joint flange 7 and quick joint 8, wherein, the outer edge of the surge flange 3 is connected with the two ends of the outer ring 4 to form an anti-surge ring cavity, and the right end of the small tube 2 is connected to the inside of the left surge flange 3 Edge connection, the left end of the small tube 2 is connected to the inner edge of the connecting flange 1, the left end of the quick joint 8 is connected to the inner edge of the surge flange 3 on the right, and the quick joint flange 7 is set in the middle of the outer surface of the quick joint 8 , the spoiler 5 is a rectangular metal plate with one corner cut off...

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Abstract

The invention belongs to the technical field of metro fan devices, and particularly relates to an anti-surge ring for an axial flow fan. The anti-surge ring aims to prevent the surge phenomenon occurring in the axial flow fan. According to the technical scheme, a connecting flange, a small cylinder, two surge flanges, an outer ring, a plurality of spoilers, an inner flow guide ring, a quick connector flange and a quick connector. The outer edges of the surge flanges are connected with the two ends of the outer ring to form an anti-surge ring cavity, the right end of the small cylinder is connected with the inner edge of the surge flange on the left side, the left end of the small cylinder is connected with the inner edge of the connecting flange, the left end of the quick connector is connected with the inner edge of the surge flange on the right side, the quick connector flange is arranged in the middle of the outer surface of the quick connector, and the inner flow guide ring is arranged on the left edges of the spoilers. The anti-surge ring for the axial flow fan has the advantages of being convenient and fast to install and reducing vibration friction among all components.

Description

technical field [0001] The invention belongs to the technical field of subway fan equipment, and in particular relates to an anti-surge ring of an axial flow fan. Background technique [0002] For the axial fans used in subway tunnels, when the resistance of the ventilation pipeline increases or the piston effect of locomotives causes the resistance to increase, the air volume of the fans will decrease. When the air volume of the fan is less than the specified value, and the inlet and outlet pressures reach the surge pressure ratio, the fan will generate a surge phenomenon due to the backflow of part or all of the airflow. This surge phenomenon seriously affects the normal use of the axial flow fan, making the axial flow The relative vibration between the components of the fan produces noise and seriously affects the service life of each component. Contents of the invention [0003] The purpose of the present invention is to solve the technical problems of the existing ax...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/66
Inventor 王向前端木峰青郭建民文军强郭青陇杜文渊
Owner SHANXI ANRUI FAN ELECTRIC
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