Air supply uniformity regulating system for lower static-pressure type air duct

A technology to adjust the system and uniformity, which is applied in the field of urban rail vehicle air duct system, can solve the problems of small air supply and difficulty in achieving the ideal effect of air supply uniformity, and achieve the effect of easy adjustment

Inactive Publication Date: 2012-06-13
ZHUZHOU ELECTRIC LOCOMOTIVE CO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiency that the existing adjustment system is difficult to achieve the ideal effect of adjusting the air supply uniformity of the air duct system, the present invention aims to provide a lower static pressure air duct air supply uniformity adjustme

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  • Air supply uniformity regulating system for lower static-pressure type air duct
  • Air supply uniformity regulating system for lower static-pressure type air duct
  • Air supply uniformity regulating system for lower static-pressure type air duct

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Embodiment Construction

[0018] A lower static pressure air duct air supply uniformity adjustment system, such as figure 1 and 2 As shown, by arranging the perforated baffle 1 at the front of the lower static pressure box, part of the airflow that diffuses forward against the static pressure hole can be blocked to form a downward air outlet. In addition, the perforated baffle 1 A large round hole is opened, and the perforated baffle 1 is U-shaped as a whole. The opening of the perforated baffle 1 faces the direction of the air intake, which can ensure that the air flow can move forward while blocking part of the airflow, and will not go back. A vortex is formed, which effectively increases the wind speed at the front of the air duct; image 3 and 4 As shown, a perforated plate 2 is arranged in the middle of the main air duct, and multiple rows of round holes are opened on the perforated plate 2 . The perforated plate 2 is U-shaped as a whole, and the opening of the perforated plate 2 faces the air ...

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Abstract

The invention discloses an air supply uniformity regulating system for a lower static-pressure type air duct, which belongs to the field of air duct systems of urban rail vehicles and aims to solve the problem that an existing regulating system cannot perfectly regulate air supply uniformity of an air duct system. The air supply uniformity regulating system comprises a lower static-pressure box and a main air duct, a pored baffle plate is arranged at the front of the lower static-pressure box, and a perforated plate is arranged in the middle of the main air duct. The pored baffle plate is arranged in the static-pressure box, airflow is directly guided towards the lower portion of the static-pressure box according to an airflow diffusion principle, and the problem of low air supply quantity of the front of the air duct of the lower static-pressure box is effectively solved. In addition, airflow can be diffused again by the aid of the perforated plate arranged on the main air duct, accordingly, a single airflow diffusion mode is changed, and air supply uniformity of the air duct can be regulated more easily.

Description

technical field [0001] The invention relates to the field of air duct systems for urban rail vehicles, in particular to a lower static pressure air duct air supply uniformity adjustment system. Background technique [0002] The design of subway vehicles generally determines the preliminary space range and air outlet position according to the overall design of the vehicle, and then determines the maximum cross-sectional size of the air duct system according to the air supply volume and the wind speed at the inlet of the air supply duct, and then determines the maximum cross-sectional size of the air duct system according to the total air supply volume and the design average air supply wind speed. Determine the total effective air outlet area, and finally carry out detailed air duct design, and finally determine the air duct system scheme through the air duct system air supply uniformity test. The air supply uniformity of the air duct system can only be adjusted through experi...

Claims

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Application Information

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IPC IPC(8): B61D27/00
Inventor 李跃中易柯邓煜华杨天智王正
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO
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