Tank sleeving technological method of railway tank car of double-layer structure

Abstract

The invention relates to a tank sleeving technological method of a railway tank car of a double-layer structure. The technological method includes the steps that firstly, one side of an inner tank body and one side of an outer-tank barrel matched with the inner tank body are assembled, wherein one side of the inner tank body and one side of an outer tank body are adjusted by supporting and positioning one side of the outer-tank barrel, and the sleeved outer-tank barrel and the inner tank body are supported and fixed; secondly, the other side of the inner tank body and the other side of the outer-tank barrel matched with the inner tank body are assembled, wherein the other side of the outer-tank barrel and the other side of the inner tank body are adjusted to move relatively, and the sleeved outer-tank barrel and the inner tank body are supported and fixed; thirdly, the two sides of the completely-sleeved outer-tank barrel are overall adjusted, and a circular seam at a combined portion is welded; and finally, end sockets on the two sides are assembled and welded. According to the tank sleeving technological method, quality risks are reduced, all the technical indexes can be more easily guaranteed, and defective products are avoided; the influences of human factors on the quality are eliminated to the maximum degree, and process control is more easily controlled; and the influence of auxiliary time on the production takt is reduced, and the product manufacturing efficiency is improved.

Description

technical field [0001] The invention relates to an assembly process method, in particular to a tank body suiting process method for a double-layer structure railway tank car in which the inner and outer tank bodies of the railway tank car with a double-layer tank body structure are integrally assembled. Background technique [0002] Railway tank cars mostly adopt a single-layer tank design structure, and the storage medium is mostly liquid medium at room temperature. With the development of the energy industry, the railway transportation of liquefied gas has become an urgent need, and the research and development of new railway liquefied gas transportation vehicles is also being accelerated by domestic railway equipment manufacturing enterprises. For railway liquefied gas carriers, the tank structure is mostly double-layer or multi-layer tank structure. How to realize the overall assembly of the inner and outer tank bodies of double-layer or multi-layer tank bodies has becom...

AI Technical Summary

Problems solved by technology

For the special tank structure of the new railway liquefied gas carrier, due to the restriction of the inner and outer tanks penetrating through the middle of the pipeline, the assembly method of the whole package in the same direction cannot be realized. This patent will be aimed at the double-layer tank with this special structure The overall package process method of the structure is explained

[0004] At present, domestic railway vehicle manufacturing enterprises have no scientific examples of the process method of liquefied gas tank car with double-layer tank structure. The difference between the tank structure of automobile vehicles and the double-layer tank structure of railway tank cars makes the process of suiting relatively simple. , the same direction is generally used for the method of fitting, because the middle part of the double-layer tank structure of the railway tank car is provided with a pipeline that runs through the inner and outer tanks, so the process method of fitting in the same direction is not suitable for the new tank structure of this type of railway tank car

[0005] These existing processing methods mainly have the following disadvantages: a. The difference in structure makes the existing method not suitable for the overall package of the double-layer tank structure of the railway tank car; b. The process equipment configured by the process method of the same direction package It is relatively simple, and there are low efficiency and high quality risks in the implementation process; c. The process control is carried out by manual observation, which is easy to cause damage to the heat insulation material laid on the inner tank

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