A phase-change material-infused heat-insulation-sealed pipe joint that is easy to disassemble and its method

Abstract

The invention discloses an easy-to-assemble and disassembled phase-change material-infused heat-preservation-sealed pipe joint and a method thereof. The pipe joint includes a hollow pipe body, and the inner walls of the opposite input end and output end of the pipe body are welded with a helical memory alloy as an internal thread. , and the pipe wall is provided with a perfusion hole, the perfusion hole is used to perfuse the phase change material after the joint is connected to the pipe to be connected, and make the phase change material fill the gap between the inner wall of the pipe and the wall of the pipe to be connected; the perfusion hole The end facing the outside of the pipe wall is provided with a detachable sealing bolt. The invention can make use of the solid-liquid phase change characteristics of the phase change material to penetrate into the cracks of the pipe fittings to strengthen the sealing; it can use the low-temperature phase and high-temperature phase deformation characteristics of the memory alloy to fasten the pipe, facilitate disassembly and assembly, and make the phase change The material fully fills the internal gap of the pipe body to enhance the sealing; the phase change material can be used to release heat characteristics, which can reduce the temperature unevenness of the transported fluid, and realize temperature control and protection of the fluid at the pipe joint.

Description

technical field [0001] The invention relates to the fields of medium and low temperature fluid transportation and energy storage and heat preservation, in particular to a phase-change material-infused, heat-preservation and sealing pipe joint that is easy to disassemble and a method thereof. Background technique [0002] Pipeline is a device used to transport gas, liquid or multi-phase flow mixed fluid, which is widely used in the field of fluid transportation in energy, chemical, biological and other industries. Pipe joints are connectors used to connect two pipes, to connect pipes of the same diameter or different diameters and ensure their tightness. With the expansion of my country's industrialization scale, the existing working environment has higher and higher technical requirements for pipes and pipe joints, and with the increase of fluid types in pipes and the increase of transport fluid temperature, pipe joints often face leakage, aging and dismantling. Problems suc...

AI Technical Summary

Problems solved by technology

In the prior art, there are phase change materials used in the casing of pipes, but there are few applications for temperature control protection of pipe joints

For fluids transported over long distances, the heat loss at the pipe joints will to some extent affect the operating conditions of the equipment and the economic benefits of the system

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