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Inclined flow ventilator for subway locomotive filter reactor

A filter reactor and oblique flow technology, which is applied in the field of oblique flow fans for subway locomotive filter reactors, can solve the problems of insufficiently stable air output and insufficient air volume of the fan, and achieve stable air output and large air output Effect

Inactive Publication Date: 2013-10-02
CRRC YONGJI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem that the air volume of the fan used in the filter reactor of the subway locomotive is not large enough and the air output is not stable enough, the present invention provides a diagonal flow fan for the filter reactor of the subway locomotive

Method used

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  • Inclined flow ventilator for subway locomotive filter reactor
  • Inclined flow ventilator for subway locomotive filter reactor
  • Inclined flow ventilator for subway locomotive filter reactor

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Embodiment Construction

[0014] A kind of oblique flow fan for subway locomotive filter reactor, comprises the tubular casing 1 that is provided with air inlet and outlet; Said casing is provided with guiding tube 4, Centrifugal impeller 5 and the motor 6 driving the centrifugal impeller; the rotating shaft of the centrifugal impeller 5 is parallel to the axial direction of the casing 1, and the blades of the centrifugal impeller 5 are on a vertical plane whose normal line is perpendicular to the axial direction of the casing The included angle between the projection and the vertical direction is a12 and it faces the direction of the wind, and the included angle a12 is 20~40° (20°, 25°, 30°, 35°, 40° can be selected); the guide tube 4 has an inward closing structure, and the distance between the closed end and the central axis of the casing 1 is smaller than the distance between the top of the blade of the centrifugal impeller 5 and the central axis of the casing 1 .

[0015] The inner wall of the cas...

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Abstract

The invention relates to a ventilator, in particular to an inclined flow ventilator for a subway locomotive filter reactor. By using the inclined flow ventilator, the technical problems that the air volume of the ventilator for the current subway locomotive filter reactor is not high, the air-out is not stable are solved. The inclined flow ventilator for the subway locomotive filter reactor comprises a barrel-shaped enclosure, wherein a guide cylinder, a centrifugal impeller and a motor driving the centrifugal impeller are arranged inside the enclosure in sequence; the rotating shaft of the centrifugal impeller is parallel with the axial direction of the enclosure; the projection of blades of the centrifugal impeller on a vertical plane on which the normal of the blades is vertical to the axial direction of the enclosure forms an included angle of 20-40 degrees with the vertical direction; the included angle faces to the air-out direction; the guide cylinder is in a structure contracting inwards; and the distance between the contracting end of the guide cylinder and the center axis of the enclosure is smaller than the spacing between the top ends of the blades of the centrifugal impeller and the central axis of the enclosure. Due to the combination of the centrifugal impeller and the axial flow enclosure, the air volume is high, the air-out is stable, and the filter reactor is guaranteed to work under normal temperature when a subway locomotive operates.

Description

technical field [0001] The invention relates to a ventilator, in particular to a diagonal flow ventilator for a filter reactor of a subway locomotive. Background technique [0002] The AC locomotives powered by inverters used in urban rail operations produced by major domestic railway locomotive manufacturers now have higher requirements for ventilation and cooling in the filter reactors, requiring stable air output and large air flow. The currently used ventilators are difficult to meet the above requirements, so a ventilator with stable air output and large air volume is needed to meet the ventilation needs of filter reactors for subway locomotives. Contents of the invention [0003] In order to solve the technical problems that the air volume of the fan used in the filter reactor of the subway locomotive is not large enough and the wind output is not stable enough, the invention provides a diagonal flow fan used in the filter reactor of the subway locomotive. [0004] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/08F04D29/28F04D29/54
Inventor 罗汉牟景峰贾兆雄
Owner CRRC YONGJI ELECTRIC CO LTD
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