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Extra large-caliber fire fighting hose and preparation method thereof

A technology for fire hoses and super-large calibers, which is applied to mechanical equipment, hoses, pipes, etc., and can solve problems such as unbearable fire hoses, high water pressure, use range and field restrictions, etc., to achieve fast water output and large water output , laying the effect quickly

Inactive Publication Date: 2012-04-11
上海华森消防科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the general specifications of fire hoses are 40, 50, 65, 80, and 90 mm in diameter, and the scope and field of use are limited
However, simply increasing the diameter of the fire hose will cause the fire hose to be unable to withstand higher water pressure

Method used

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  • Extra large-caliber fire fighting hose and preparation method thereof
  • Extra large-caliber fire fighting hose and preparation method thereof
  • Extra large-caliber fire fighting hose and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0016] Such as figure 1 and figure 2 As shown, the super-large diameter fire hose of the present invention is composed of a blank 1 and a composite layer 2, the blank 1 is tubular, the composite layer 2 is arranged inside the blank 1, and the blank 1 is arranged inside the blank 1. The strip blank 1 is made of fiber weaving, and the composite layer 2 is formed by dual-mode co-extrusion of a thin-walled polyurethane adhesive layer 21 and a polyurethane waterproof layer 22. The thickness of the thin-walled polyurethane adhesive layer 21 and the polyurethane waterproof layer 22 is The ratio is 1:2 to 1:3.

[0017] Further, the strip blank 1 is braided by warp threads 12 and weft threads 11 .

[0018] Further, the warp thread 12 is formed by plying polyester filaments or twisting polyester yarns.

[0019] Further, the weft 11 is composed of polyester filaments and jet filaments twisted together.

[0020] Further, a layer of composite layer 2 is also provided on the outer surf...

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Abstract

The invention discloses an extra large-caliber fire fighting hose. The fire fighting hose consists of a hose blank and a composite layer, wherein the hose blank is tubular; the composite layer is arranged on the inner side of the hose blank; the hose blank is formed by braiding fibers; the composite layer is formed by performing double-mould co-extrusion on a thin-walled polyurethane bonding layer and a polyurethane waterproofing layer; and a thickness ratio of the thin-walled polyurethane bonding layer to the polyurethane waterproofing layer is 1:2-1:3. The composite layer also can be arranged on the outer surface of the hose blank. The invention also provides a preparation method for the extra large-caliber fire fighting hose. The extra large-caliber fire fighting hose is easy to fold and convenient to pave, is high in pressure resistance and water outlet amount, and is hydrolysis resistant and weak acid and alkali resistant; the aging life of the fire fighting hose can be over 8 years; and the fire fighting hose can be used in places requiring a large amount of water.

Description

Technical field: [0001] The invention relates to fluid conveying technology, in particular to a fire-fighting water supply device, in particular to a super-large-diameter fire-fighting hose and a preparation method thereof. Background technique: [0002] It is convenient to lay the fire hose for fire extinguishing. However, with the construction of water delivery projects such as urban emergency drainage and the main line of high-power fire trucks, the main line needs a larger water output to ensure the water output of the branch hoses. In the prior art, the general specifications of fire hoses are 40, 50, 65, 80, and 90 millimeters in diameter, and the scope and field of use are limited. However, simply increasing the diameter of the fire hose will cause the fire hose to be unable to withstand higher water pressure. Invention content: [0003] The purpose of the present invention is to provide a super-large-diameter fire hose, which solves the technical problem of the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L11/00
Inventor 龚卫兴朱伟华葛金兴郑民杰张建忠
Owner 上海华森消防科技发展有限公司
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