Heat insulation pipe body

Abstract

The invention discloses a heat insulation pipe body. The heat insulation pipe body comprises a pipe body single body and a connecting mechanism, wherein the pipe body single body comprises an inner pipe, a middle pipe and a heat insulation single pipe; the inner pipe, the middle pipe and the heat insulation single pipe are sequentially arranged from inside to outside in a sleeved mode; the heat insulation single pipe is a detachable pipe body and comprises a left heat insulation single pipe and a right heat insulation single pipe, and splicing grooves are both formed in the head end of the left heat insulation single pipe and the tail end of the right heat insulation single pipe; and a sliding splicing pressing block is arranged on the head end splicing groove, and a heat insulating cavitywith a circular-ring-shaped section is arranged in the heat insulation single pipe. According to the heat insulation pipe body, a multi-medium simultaneous conveying multi-layer heat insulation pipeis adopted, so that multiple purposes of one pipe can be realized; the detachable heat insulation single pipe is adopted, so that the disassembly is convenient, only the damaged needs to be disassembled and replaced, and the disassembly cost is saved; a heat insulation cavity separation reaction heat-reduction device is adopted, can be used for carrying out a preferential reaction on the differentheat environments when conveying is performed by the pipe body so that an object to be conveyed can be more conveniently prevented from being affected by the temperature; and moreover, the pipe bodycan be replaced more conveniently.

Description

technical field [0001] The invention relates to the technical field of pipes, in particular to a heat insulating pipe body. Background technique [0002] For flammable and explosive gases, high-purity gases, cold source gases, etc., in order to avoid loss and harm to the environment, non-destructive storage is often used for storage and transportation. High-vacuum multi-layer insulated cryogenic liquid pipelines have been widely used in the field of low-temperature storage and transportation due to their excellent thermal insulation performance, involving machinery, petrochemical, metallurgy, biology, medical, aerospace and many other industries. At present, the development and process research of domestic high-vacuum multi-layer heat insulation technology is on the rise, but the structure of the vacuum heat-insulated low-temperature pipeline still adopts the traditional two-layer structure, which has poor cold insulation effect and is prone to low temperature during transpo...

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Problems solved by technology

[0004] In order to solve the above problems, the conveying pipeline in the prior art generally has the conveying layer and the heat insulation layer integrated, and is easily deformed in the face of temperature changes. When the pipeline is damaged, the damaged end cannot be accurately known, and it can only be replaced as a whole. , very inconvenient, and the cost of replacement is very high. How to solve the problem that the pipe body can only transport one medium, the conveying pipe body is easily deformed by heat, the heat insulation effect is not good, and the damage cannot be stopped in time when the heat source is damaged, and the damage point cannot be clearly defined and damaged Afterwards, the overall replacement of the pipe body and other issues are the main problems that need to be solved at this stage.

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