HDPE winding structure wall B type pipe with lining as fireproof layer and manufacturing process thereof

A technology of fireproof layer and structural wall, applied in the direction of pipes, rigid pipes, pipeline protection, etc., to achieve the effect of simple construction, expansion of use scope, and cost reduction

Inactive Publication Date: 2018-09-28
HEBEI TONGTAO PIPE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a B-type pipe with HDPE winding structure wall whose lining is designed as a fireproof layer and its manufacturing process. The practical problems encountered in existing projects, that is, the inner wall of the pipe will be exposed to the environment that people can touch, and the open flame will increase the risk of use

Method used

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  • HDPE winding structure wall B type pipe with lining as fireproof layer and manufacturing process thereof

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the embodiments and accompanying drawings.

[0023] Such as figure 1 As shown, the present invention is designed as an embodiment of a fireproof HDPE winding structure wall B-type pipe, which includes a main pipe 1 made of ordinary polyethylene raw materials, and a PP ribbed pipe 2 arranged outside the main pipe 1. The inner wall of the main pipe 1 is compounded with an inner lining layer made of flame-retardant and fire-resistant materials, and an electric fuse 3 is embedded in the nozzle of the main pipe.

[0024] The inner lining layer composed of flame-retardant and fire-resistant materials is made of compound flame-retardant materials composed of high-density polyethylene raw materials and flame-retardant masterbatches accounting for 5-30% of the total weight.

[0025] The flame retardant masterbatch used is bromine antimony flame retardant masterbatch or phosphorus flame retardant masterbat...

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Abstract

The invention provides a HDPE winding structure wall B type pipe with a lining as a fireproof layer and a manufacturing process thereof, and solves the problem of possible generation of fire due to exposure of pipes in an environment capable of contacting with open fire due to change of use environments. An inner layer is designed as the fireproof layer, but a whole pipe body is not designed as afireproof pipe, so that the requirements of use conditions can be met, no waste can be achieved, and the low cost is guaranteed. The application range of high-density polyethylene drainage pipes is widened, so that the effects of simple construction and cost reduction are indirectly achieved, and wide popularization and application value is achieved.

Description

technical field [0001] The invention belongs to the technical field of drainage pipes, and in particular relates to a B-shaped pipe with an HDPE winding structure wall whose lining is designed as a fireproof layer and a manufacturing process thereof. Background technique [0002] The high-density polyethylene winding structure wall B-type pipe is made of high-density polyethylene resin as the main raw material, adopts the hot extrusion winding molding process, and is made of polypropylene (PP) single-wall corrugated pipe as the supporting structure with high resistance. Special structural wall tubing for external pressure capability. [0003] Plastic pipes instead of cement pipes have been popularized in many fields, especially in some poor environments where cement pipes are sensitive to ground subsidence or changes in the earth's crust, and the pipes are prone to breakage; the permeability of HDPE pipes is much lower than that of cement pipes, and is low It will not cause...

Claims

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Application Information

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IPC IPC(8): F16L9/16F16L57/04F16L47/03B29C69/02B29C47/92B29C47/60B29L23/00
CPCF16L9/16B29C48/0019B29C48/625B29C48/92B29C2948/92704B29L2023/00F16L47/03F16L57/04
Inventor 许文刚刘迎宾李海石王喜宽李赫
Owner HEBEI TONGTAO PIPE CO LTD
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