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Insulation pipe containing high-density polyethylene reinforced bracket and manufacturing method

A technology of high-density polyethylene and thermal insulation pipes, which is applied in the direction of heat insulation protection of pipelines, heat preservation, and pipeline protection. It can solve the problems of no support, uneven space, broken and mobile outer protective pipes, etc.

Inactive Publication Date: 2018-01-26
HARBIN LOGSTOR ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the pipe-in-pipe process, the support that binds wooden blocks and plastic blocks is rigidly bound on the working pipe by metal wires. During the process of inserting the working pipe into the high-density polyethylene outer protective pipe, due to the friction of the outer protective pipe, Wood and plastic blocks will break and move, resulting in no support in the middle and end of the pipe, so that the space between the outer protective pipe and the working pipe cannot be uniform, and polyurethane insulation will appear uneven after foaming

Method used

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  • Insulation pipe containing high-density polyethylene reinforced bracket and manufacturing method
  • Insulation pipe containing high-density polyethylene reinforced bracket and manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A thermal insulation pipeline containing a high-density polyethylene reinforced bracket, which consists of: a working pipeline 4, the outer side of the working pipeline is covered with a high-density polyethylene reinforced bracket 3, and the outer side of the high-density polyethylene reinforced bracket is provided with an outer sheath There is a hard polyurethane layer 2 between the pipe 1, the working pipe and the outer protective pipe.

Embodiment 2

[0017] According to the thermal insulation pipeline containing the high-density polyethylene reinforced bracket described in Example 1, the bracket body of the high-density polyethylene reinforced bracket is a cuboid with an isosceles trapezoidal cross section, and one end of the high-density polyethylene reinforced bracket is A support 6 of standard height, one end of the high-density polyethylene reinforced bracket is a contracted snap-in tail 5, and the snap-in end is snapped into the buckle at the bottom of the support.

Embodiment 3

[0019] According to the thermal insulation pipeline containing high-density polyethylene reinforced bracket described in embodiment 1 or 2, the diameter of the working pipeline is 15mm-2000mm, the thickness of the hard polyurethane layer is 30-200mm, and the outer The thickness of the protective tube is 1-30mm.

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Abstract

The invention relates to an insulation pipe containing a high-density polyethylene reinforced bracket and a manufacturing method. Traditional polyurethane plastic foaming insulation pipe production adopts a wood or plastic support; and the support is serially connected and bound by a metal wire. In a pipe sleeve process, the support for binding a wood block and a plastic block is rigidly bound on a working piece by the metal wire; and in the process of coating the working pipe in a high-density polyethylene outer protection pipe, because of the friction of the outer protection pipe, the wood block and the plastic block can generate the crushing and moving phenomenon. The insulation pipe containing the high-density polyethylene reinforced bracket comprises the working pipe (4); the outer side of the working pipe is coated with the high-density polyethylene reinforced bracket (3); the outer protection pipe (1) is arranged at the outer side of the high-density polyethylene reinforced bracket; and a hard polyurethane layer (2) is arranged between the working pipe and the outer protection pipe. The invention is applied to the insulation pipe containing the high-density polyethylene reinforced bracket and the manufacturing method.

Description

Technical field: [0001] The invention relates to a thermal insulation pipeline containing a high-density polyethylene reinforced bracket and a production method thereof. Background technique: [0002] The original production of polyurethane plastic foam insulation pipes uses wooden or plastic supports, which are bound in series by metal wires. In the pipe-in-pipe process, the support that binds wooden blocks and plastic blocks is rigidly bound on the working pipe by metal wires. During the process of inserting the working pipe into the high-density polyethylene outer protective pipe, due to the friction of the outer protective pipe, Wood and plastic blocks will break and move, resulting in no support in the middle and end of the pipe, so that the space between the outer protective pipe and the working pipe cannot be uniform, and polyurethane insulation will appear uneven after foaming. Invention content: [0003] The object of the present invention is to provide a thermal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L9/12F16L9/18F16L59/04F16L58/02
CPCF16L9/12F16L9/18F16L58/02F16L59/04
Inventor 赖贞澄张居山王辉
Owner HARBIN LOGSTOR ENERGY SAVING TECH