Convenient-to-use spark extinguishing device for exhaust duct of diesel locomotive

The spark extinguishing device, with its multi-stage spark extinguishing structure and regulating ring design, solves the problem that existing spark extinguishers cannot adapt to different exhaust pipe diameters of internal combustion locomotives, achieving both high-efficiency spark extinguishing and safety.

CN223634772UActive Publication Date: 2025-12-05HANDAN IRON & STEEL GROUP CO LTD +1
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Patent Information

Application Number
CN202520093181.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2025-12-05
Estimated Expiration
2035-01-15

AI Technical Summary

Technical Problem

The existing external spark arresters have fixed specifications, which cannot adapt to the different exhaust pipe diameters of internal combustion locomotives, and their spark arresting effect is poor.

Method used

A connecting cylinder composed of multiple adjusting rings was designed. Combined with the star-extinguishing cone, star-blocking ring and gas turbulence structure inside the extinguishing cylinder, multi-stage star extinguishing is achieved through spiral blades and gas turbulence plates. It can adapt to exhaust pipes of different diameters and ensure the sealing of the connection through sealing components.

Benefits of technology

It has achieved compatibility with exhaust pipes of different specifications of diesel locomotives, improved the extinguishing effect, reduced air leakage, and ensured the safe use of diesel locomotive exhaust pipes.

✦ Generated by Eureka AI based on patent content.
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Abstract

A spark extinguishing device convenient to use for an exhaust duct of a diesel locomotive belongs to the technical field of diesel locomotive equipment and is used for extinguishing sparks in the exhaust duct of the diesel locomotive. According to the technical scheme, a connecting cylinder is a conical cylinder body with two open ends, the conical cylinder body is formed by connecting a plurality of adjusting rings, the adjusting rings are conical circular rings, the diameter of the adjusting ring at the front end is smaller than that of the adjusting ring at the rear end, the rear end of the adjusting ring at the rearmost end of the connecting cylinder is connected with the front end of an extinguishing cylinder through a flange, and the extinguishing cylinder is a cylinder body; a star extinguishing cone and a star blocking ring are installed in the extinguishing cylinder, the star extinguishing cone is a cone cylinder with an opening in the rear end, the cone tip of the cone cylinder faces the direction of the connecting cylinder, a plurality of gas inlets are evenly distributed in the wall of the cone cylinder, the star blocking ring is located behind the star extinguishing cone and is a conical circular ring, and the circumferential edge of the star blocking ring is fixedly connected with the inner wall of the extinguishing cylinder. The device is convenient to install, can be suitable for diesel locomotive exhaust pipeline ports with different calibers, and has multiple internal star-extinguishing loops and a good star-extinguishing effect.
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