A hot melt sleeve

Abstract

The invention discloses a hot-melt sleeve. The hot-melt sleeve includes a seamless rubber sleeve. The edge of the inner surface of one end of the seamless rubber sleeve is provided with a first mesh strip along the circumference, and the two ends of the first mesh strip are obliquely opposite or in a meshing shape, and one end of the first mesh strip is set There is a first live wire electrode, and the other end of the first mesh strip is provided with a first neutral wire electrode. The edge of the inner surface of the other end of the seamless rubber sleeve is provided with a second mesh strip along the circumferential direction. A second live line electrode is provided, and the other end of the second mesh strip is provided with a second neutral line electrode. The hot-melt sleeve of the present invention will not produce gaps due to the thickness of the hot-melt sleeve, which is beneficial to the sealed and fixed connection between the hot-melt sleeve and the heat preservation pipe; at the same time, the sealing effect of welding at the slit between the two ends of the mesh is better it is good.

Description

technical field [0001] The invention relates to a sealing connection part used for thermal insulation joints of direct-buried high-temperature hot water pipe networks in heating engineering, in particular to a heat-melt sleeve. Background technique [0002] Since the introduction of foreign prefabricated direct-buried thermal insulation pipes in my country in the 1980s, the construction technology of direct-buried heating and thermal insulation pipes in my country has developed rapidly. Progress; With the popularization of high-temperature hot water pipeline direct burial technology, the problems caused by thermal insulation joints have become increasingly prominent, and have attracted great attention from the industry. At present, when direct-buried thermal insulation pipelines are laid in areas with rich groundwater, if any part of the pipeline system is damaged from the outside, causing groundwater to enter the pipeline insulation system, the vaporization of high-temperatu...

AI Technical Summary

Problems solved by technology

[0008] The hot-melt sheet in the prior art needs to be sealed by lapping the two wide sides, so the gap caused by the thickness of the hot-melt sheet cannot be avoided, and it cannot be completely eliminated; at the same time, it is used to produce heat The production tools of the fusion sheet occupy a large area; the production method of the hot-melt sheet is more complicated and the production efficiency is low; the storage and transportation of the hot-melt sheet need to occupy a separate space; the construction method of the hot-melt sheet is more complicated and the construction efficiency is lower

Images