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Inhaul cable body with fireproof shell and manufacturing method of inhaul cable body

A technology for cables and fireproof coatings, applied to bridge parts, bridge materials, bridges, etc., can solve problems such as accelerating fire spread, accelerating internal steel wire heating, and affecting steel wire performance

Pending Publication Date: 2020-12-18
SHANGHAI PUJIANG CABLE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For parallel steel wire cables, the high-density polyethylene outside the cable body plays a role of sealing and anticorrosion, but HDPE is a combustible substance, which will be ignited in case of fire and accelerate the spread of the fire and accelerate the heating of the internal steel wire
Secondly, poor fire resistance is an Achilles’ heel of steel wire. When the temperature is 400°C, its strength drops severely. When the temperature is 600°C, it basically loses its strength and rigidity. The temperature of the general fire scene is 800°Cmm~1000°C. This temperature will have a great influence on the properties of the steel wire

Method used

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  • Inhaul cable body with fireproof shell and manufacturing method of inhaul cable body
  • Inhaul cable body with fireproof shell and manufacturing method of inhaul cable body
  • Inhaul cable body with fireproof shell and manufacturing method of inhaul cable body

Examples

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Embodiment 1

[0028] A cable body with a fireproof casing, comprising a cable body 1, a fireproof coating 3, a protective sleeve 4, a partition 5 and a gasket 6, such as figure 1 and figure 2 As shown, the specific structure is:

[0029] The partitions 5 are ring-shaped, and there are at least three partitions. The outer diameter of the partitions 5 matches the inner diameter of the protective sleeve 4. Each partition 5 is fixed on the inner side wall of the protective sleeve 4 by spot welding. The partitions 5 are all perpendicular to the central axis of the protective casing 4, and the intervals between two adjacent partitions 5 are equal; the inner wall of the protective casing 4 is painted with a fireproof paint 3, and the cable body 1 is pulled from the protective casing. One end of 4 penetrates through the central through hole of each partition 5 in turn and then passes out from the other end of the protective sleeve 4, and the expansion buffer layer 2 is formed between the outer wa...

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Abstract

The invention relates to the field of bridge and building inhaul cables, in particular to an inhaul cable body with a fireproof shell and a manufacturing method of the inhaul cable body. The inhaul cable body with the fireproof shell comprises an inhaul cable body (1) and is characterized by further comprising fireproof paint (3), a protective sleeve (4), partition plates (5) and sealing gaskets (6), the partition plates (5) are sequentially fixed to the inner side wall of the protective sleeve (4), the inhaul cable body (1) penetrates in from one end of the protective sleeve (4) and penetrates out from the other end, and the inhaul cable body (1) and two ports of the protective sleeve (4) are sealed by the sealing gaskets (6). The manufacturing method of the inhaul cable body with the fireproof shell is characterized by comprising the following steps in sequence: 1, cutting; 2, plate welding; 3, painting: painting fireproof paint (3) on the inner side walls of two half sleeves (41) respectively; 4, splicing; and 5, sealing. The inhaul cable body is good in fireproof performance and long in service life.

Description

technical field [0001] The invention relates to the field of cables used in bridges and buildings, in particular to a cable body with a fireproof shell and a manufacturing method thereof. Background technique [0002] According to statistics on bridge fire and explosion accidents worldwide, the number of bridges that collapse due to fires is 2.7 times that of earthquakes. Traffic fires occur an average of 0.5 to 1.5 times per 10 million kilometers of driving, of which 1% are tanker fires. Usually the distance between the cable and the roadway is relatively short. Once a fire breaks out on the bridge, the probability of the cable catching fire is self-evident. For parallel steel wire cables, the high-density polyethylene on the outside of the cable plays a role of sealing and anticorrosion, but HDPE is a combustible substance, which will be ignited in case of fire and accelerate the spread of the fire and accelerate the heating of the internal steel wire. Secondly, poor fir...

Claims

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Application Information

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IPC IPC(8): E01D19/16E01D101/30
CPCE01D19/16
Inventor 汤亮张海良何旭初顾庆华俞建群
Owner SHANGHAI PUJIANG CABLE
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