Gas exhaust tube of insulated lorry

Abstract

The invention provides a gas exhaust tube of an insulated lorry. The gas exhaust tube comprises a to-be-packaged gas exhaust tube body, wherein a layer of thermal insulation cotton pads covers outside the gas exhaust tube by taking the to-be-packaged gas exhaust tube body as support; a layer of stainless steel woven meshes covers outside the thermal insulation cotton pads; length of the stainless steel woven meshes covers is greater than that of the thermal insulation cotton pads; and the two ends at the two ends of the gas exhaust tube body are fixed through blocking hoops. According to the gas exhaust tube provided by the invention, the stainless steel woven meshes can perform density change while a pipeline is bent, so that influences on bending changes of the gas exhaust tube body are avoided, integral package can be performed, the packaged gas exhaust tube is not provided with a connecting seam in the middle, the appearance is smooth and beautiful, thermal insulation materials are packaged tightly, a packaging processing process is simple and batch production efficiency is high, so that popularization use of the gas exhaust tube is greatly improved.

Description

technical field [0001] The invention relates to the wrapping of thermal insulation materials for automobile exhaust pipes after heat preservation treatment, which is applied to the exhaust pipe pipeline between the exhaust pipeline connected to the exhaust gas outlet of the automobile engine and the EGP for exhaust gas treatment, and wrapped with heat insulation cotton The final outer protective treatment prevents the insulation cotton from being exposed, prevents the insulation cotton from being loosely wrapped, which affects the insulation effect and is easily damaged, and plays a protective and aesthetic role. Background technique [0002] With the implementation of national air pollution prevention and control measures and the gradual strengthening of energy-saving and emission-reduction measures, automobiles are equipped with exhaust emission post-treatment and purification systems. Through the combustion and decomposition of the purification system, the harmful gases em...

AI Technical Summary

Problems solved by technology

[0004] The above two methods of wrapping exhaust pipe insulation have the following disadvantages: 1. The first wrapping method is mainly used for local protection. The method of wrapping the exhaust pipe with fireproof cotton pads is not tight enough to wrap the exhaust pipe, and the heat preservation The cotton pad is not protected, it is easy to be scratched, damaged and polluted by muddy water and oil, and the appearance is not good

2. Although the second wrapping treatment method tightly wraps the exhaust pipe, it has a good thermal insulation effect and looks good, but the exhaust pipe has several curved sections, and each curved section must be spliced ​​with a transitional elbow, so there are welds Many, complex processing technology, time-consuming batch processing and other disadvantages

[0005] The reason for the above disadvantages is that the measures for heat preservation of exhaust pipes have just been implemented in China, and there is no in-depth research on effective wrapping methods and process simplification in this area. With the extensive development of applications, there will be more New methods and new techniques emerge

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