Thermal insulation pipe joint structure and construction method of thermal insulation pipe joint

Abstract

The invention relates to a thermal insulation pipe joint structure and a construction method of a thermal insulation pipe joint. The thermal insulation pipe joint structure is used for connection of prefabricated thermal insulation pipes and comprises a glass fiber reinforced plastic sleeve, manually painted glass fiber reinforced plastics and a joint thermal insulation layer, wherein the two ends of the glass fiber reinforced plastic sleeve are coated by the manually painted glass fiber reinforced plastics, and the joint thermal insulation layer is formed inside the glass fiber reinforced plastic sleeve. The construction method of the thermal insulation pipe joint comprises the following steps: step 1, the glass fiber reinforced plastic sleeve is provided, and the joint of two prefabricated thermal insulation pipes is sleeved with the glass fiber reinforced plastic sleeve, wherein the two prefabricated thermal insulation pipes are connected in advance; step 2, the two ends of the glass fiber reinforced plastic sleeve are coated by the manually painted glass fiber reinforced plastics, wherein the manually painted glass fiber reinforced plastics extend to outer protective layers of the prefabricated thermal insulation pipes; step 3, the joint thermal insulation layer is formed in the glass fiber reinforced plastic sleeve; step 4, filling holes and exhaust holes in the glass fiber reinforced plastic sleeve are sealed. According to the thermal insulation pipe joint structure and the construction method of the thermal insulation pipe joint, no naked flame is needed for site operation, and therefore the fire risk caused by naked flames in a construction process in a limited space can be effectively eradicated.

Description

technical field [0001] The invention relates to an insulation pipe joint structure and a construction method for an insulation pipe joint, in particular to an insulation pipe joint structure and a construction method for an insulation pipe joint that does not require an open flame for on-site construction. Background technique [0002] The form of prefabricated direct-buried insulation pipes in the traditional central heating / cooling field is that the medium pipe is a steel pipe, the insulation layer is a polyurethane foam layer, and the outer protection pipe is made of high-density polyethylene outer protection pipe. The insulation pipe has good insulation performance. And the construction is convenient, but this type of pipeline will use open flames during the construction of the joints to bring serious safety hazards to the pipeline construction and installation operations, and the construction requirements are difficult. Therefore, it is necessary to develop a new product...

AI Technical Summary

Problems solved by technology

[0002] The form of prefabricated direct-buried insulation pipes in the traditional central heating / cooling field is that the medium pipe is a steel pipe, the insulation layer is a polyurethane foam layer, and the outer protection pipe is made of high-density polyethylene outer protection pipe. The insulation pipe has good insulation performance. And the construction is convenient, but this type of pipeline will use open flames during the construction of the joints to bring serious safety hazards to the pipeline construction and installation operations, and the construction requirements are difficult. Therefore, it is necessary to develop a new product to further meet the requirements of pipelines in complex construction environments. fire protection requirements

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