Method and apparatus for purging a device

By using a 3D watershed model to simulate and optimize the layout of nozzles, suction ports, and flexible shields, the problem of poor layout of purging equipment in urban rail transit vehicle maintenance was solved, improving the purging effect and cleaning efficiency.

CN122113381APending Publication Date: 2026-05-29CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP CO LTD
Filing Date
2026-01-26
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In the existing technology, the layout of the purging equipment in the maintenance process of urban rail transit vehicles affects the purging effect, resulting in suboptimal maintenance, especially in complex structures where missed inspections are likely to occur.

Method used

By constructing a three-dimensional watershed model, simulation analysis of nozzles, suction ports, and flexible shields is conducted to determine nozzle type, orientation, air compressor parameters, suction port location, and negative pressure parameters. Combined with engineering redundancy coefficients and pipeline pressure loss, the layout of the purging equipment is optimized.

Benefits of technology

The optimal layout of the purging equipment was achieved, which improved the purging effect, ensured efficient cleaning in complex structures, and reduced the risk of missed detection.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122113381A_ABST
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Abstract

The application provides a layout method and device of a blowing equipment. The method comprises the following steps: constructing a three-dimensional flow field model containing a key blowing position, a nozzle, a dust suction port and a flexible shielding, and determining a flow field control equation; simulating the nozzle based on the three-dimensional flow field model, and determining the type of the nozzle, the blowing pose of the nozzle and the air compressor parameters; simulating the dust suction port based on the three-dimensional flow field model, and determining the arrangement scheme of the dust suction port, the relative position of the dust suction port and the nozzle and the negative pressure parameters; simulating the end shielding effect based on the three-dimensional flow field model, and determining the flexible shielding arrangement area; integrating the type of the nozzle, the blowing pose, the air compressor parameters, the arrangement scheme of the dust suction port, the relative position of the dust suction port and the nozzle, the negative pressure parameters and the flexible shielding arrangement area to obtain a preliminary layout scheme, and performing overall flow field simulation according to the preliminary layout scheme, and adjusting the preliminary layout scheme according to the blowing effect to obtain a final layout scheme of the blowing equipment.
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