Device for nesting inner tank body and outer tank body of cryogenic liquid transportation semitrailer

Abstract

The invention relates to a device for nesting an inner tank body and an outer tank body of a cryogenic liquid transportation semitrailer, belonging to the technical field of semitrailer tank bodies in transportation of cryogenic liquid. The device comprises winding flanges, square steel tubes, flat steel and an assembling trolley, wherein the winding flanges (1) are respectively assembled on end enclosures at the two ends of the inner tank body, the axes of the winding flanges (1) are overlapped with the axis of the inner tank body, the assembling trolley (2) is connected with the winding flanges (1) through threads so as to support the inner tank body, the assembling trolley (2) smoothly loads the inner tank body in the outer tank body along a track consisting of the square steel tubes (3) and the flat steel (4) under the action of an external driving force, and then, the nesting of the inner tank body and the outer tank body is realized. The device has the advantages that the difficulty that an inner tubular body and an outer tubular body are difficultly nested due to a smaller gap between the inner tubular body and the outer tubular body when the inner tubular body and the outer tubular body are assembled in a production workshop is solved, and the smooth nesting of a large-volume inner container and a large-volume outer container of a cryogenic liquefied gas transportation semitrailer is realized.

Description

technical field [0001] The invention belongs to the technical field of semi-trailer tank bodies in low-temperature liquid transportation, and in particular provides a fitting device for inner and outer tank bodies of a low-temperature liquid transportation semi-trailer. Background technique [0002] At present, with the application and promotion of liquefied natural gas, the market share of liquefied natural gas transport semi-trailers is gradually increasing. Since the tank structure of liquefied natural gas transport semi-trailers is composed of an inner container and an outer container, in order to reduce the ton / km operating cost of liquefied natural gas , it is necessary to increase the volume of the inner container. Since the size of the outer container is limited by the length, width, and height of the vehicle, the interlayer space between the inner container and the outer container can only be reduced while increasing the volume of the inner container, resulting in I...

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Problems solved by technology

[0002] At present, with the application and promotion of liquefied natural gas, the market share of liquefied natural gas transport semi-trailers is gradually increasing. Since the tank structure of liquefied natural gas transport semi-trailers is composed of an inner container and an outer container, in order to reduce the ton / km operating cost of liquefied natural gas , it is necessary to increase the volume of the inner container. Since the size of the outer container is limited by the length, width, and height of the vehicle, the interlayer space between the inner container and the outer container can only be reduced while increasing the volume of the inner container, resulting in It is difficult to fit the inner and outer tanks. In order to solve the above problems in the manufacturer, our company invented the inner and outer container fitting device of the LNG transport semi-trailer

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