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Polyethylene foamed insulation pipeline

A technology for polyethylene foaming and thermal insulation pipelines, which is applied in the direction of thermal insulation, pipeline protection through heat insulation, and pipeline protection. The effect of high strength and low heat loss rate

Inactive Publication Date: 2017-03-08
JIANGSU HAOSHENG PLASTIC IND TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Underground pipelines currently used for liquid medium transmission are often prone to corrosion due to the erosion of the harsh underground environment, and their strength is not good. After being eroded, they are prone to leakage and cannot be detected

Method used

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  • Polyethylene foamed insulation pipeline

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Embodiment Construction

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0016] see figure 1 , the embodiment of the present invention includes:

[0017] A polyethylene foam insulation pipeline, comprising: a central steel pipe 1, the inner wall of the central steel pipe 1 is provided with a high-density polyethylene inner sheath 2, the outer periphery of the central steel pipe 1 is provided with a polyurethane thermal insulation layer 3, and the outer periphery of the polyurethane thermal insulation layer 3 At least two layers of high-density polyethylene outer sheath 4 are provided.

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Abstract

The invention discloses a polyethylene foamed insulation pipeline. The polyethylene foamed insulation pipeline comprises a central steel pipe. An inner high-density polyethylene protective layer is arranged on the inner wall of the central steel pipe. A polyurethane insulation coating is arranged on the periphery of the central steel pipe. Two or more outer high-density polyethylene protective layers are arranged on the periphery of the polyurethane insulation coating. A leakage alarm line is buried inside the polyurethane insulation coating in the time delay direction of the central steel pipe. In this way, the polyethylene foamed insulation pipeline is good in insulation performance, low in heat loss rate, excellent in corrosion resistance, large in mechanical strength, and capable of supporting the central steel tube to bear a certain external load; and meanwhile, the insulation coating can be protected against erosion of underground water, leakage detection can be conducted, and the detection precision is high.

Description

technical field [0001] The invention relates to the technical field of polyethylene foam materials, in particular to a polyethylene foam insulation pipe. Background technique [0002] PE foam material is one of the earliest foam materials widely used in industrialization, and its application fields are diverse. [0003] Polyethylene (PE) has excellent physical, chemical and mechanical properties, good toughness, flexibility and cushioning properties, and has electrical insulation and heat insulation properties. It is widely used in packaging, chemical and construction fields. [0004] At present, the underground pipelines used for liquid medium transmission are often prone to corrosion due to the erosion of the harsh underground environment, and their strength is not good. After being eroded, they are prone to leakage and cannot be detected. Contents of the invention [0005] The technical problem mainly solved by the present invention is to provide a polyethylene foam in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L59/02
CPCF16L59/029
Inventor 顾鹏程
Owner JIANGSU HAOSHENG PLASTIC IND TECH CO LTD
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