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

A technology of high-density polyethylene and pipe fittings, applied in the direction of elbows, heat preservation, pipe elements, etc., can solve the problems of uneven space of outer protective pipe, uneven heat preservation of polyurethane, and no support, so as to improve product quality and heat preservation effect , uniform distance and uniform layout distance

Inactive Publication Date: 2018-11-27
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 supports that bind wood and plastic blocks are rigidly bound on the outer wall of the working pipe by metal wires. During the process of inserting the working pipe into the high-density polyethylene outer protective tube, due to the friction of the

Method used

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

Examples

Experimental program
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Effect test

Embodiment 1

[0016] A thermal insulation pipe fitting elbow containing a high-density polyethylene reinforced bracket, which consists of: an elbow working tube 3, the outer side of the elbow working tube is covered with a high-density polyethylene reinforcing bracket 4, and the high-density polyethylene There is an outer protective tube 1 on the outside of the reinforced bracket, a hard polyurethane layer 2 is provided between the elbow working tube and the outer protective tube, and the vertical section of the elbow working tube is transitioned through a circular arc.

Embodiment 2

[0018] According to the thermal insulation pipe fitting containing the high-density polyethylene reinforced bracket described in Example 1, the bracket body of the high-density polyethylene reinforced bracket is a rectangular isosceles trapezoid, and one end of the high-density polyethylene reinforced bracket is a standard height The support 5, one end of the high-density polyethylene reinforced bracket is a contracted clip tail 6, and the clip end is clipped with the buckle at the bottom of the support.

Embodiment 3

[0020] According to the thermal insulation pipe fitting elbow with the function of monitoring leakage points described in embodiment 1 or 2, the pipe diameter of the elbow working pipe is 15mm-2000mm, the thickness of the polyurethane protective layer is 30-200mm, and the The thickness of the polyethylene outer protective tube is 1-30mm, and the signal wires are metal conductive bare wires.

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Abstract

The invention relates to a thermal-insulation pipe elbow with a high-density polyethylene reinforced bracket and a manufacturing method for the thermal-insulation pipe elbow. An original polyurethane plastic foamed thermal-insulation pipe is produced by a wood or plastic upholder which is tied up by metal wires in series connected. In a process of covering a pipe with another pipe, a wood block and a plastic block have breaking and moving phenomena. The thermal-insulation pipe elbow with the high-density polyethylene reinforced bracket consists of an below working pipe (3), wherein the outer side of the below working pipe is provided with the high-density polyethylene reinforced bracket (4) in a sleeved mode; the outer side of the high-density polyethylene reinforced bracket is provided with an outer protective tube (1); a hard polyurethane layer (2) is arranged between the elbow working pipe and the outer protective tube; and a vertical section of the elbow working pipe is in transition through a circular arc. The invention is applied to the thermal-insulation pipe elbow with the high-density polyethylene reinforced bracket and the manufacturing method for the thermal-insulation pipe elbow.

Description

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

Claims

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Application Information

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IPC IPC(8): F16L43/00F16L59/12F16L59/02F16L58/10
CPCF16L43/00F16L58/1027F16L58/1072F16L59/028F16L59/123F16L59/22
Inventor 张居山赖贞澄王辉
Owner HARBIN LOGSTOR ENERGY SAVING TECH
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