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Novel composite material cable trough box for rail transit

A cable trough box and rail transportation technology, applied in the field of rail transportation, can solve the problems of environmental erosion and freeze-thaw damage of cement products, inconvenient maintenance and replacement of cement cable troughs, and limited use area, etc. Anisotropy, the effect of increasing the oxygen index

Active Publication Date: 2014-12-03
NINGBO HUAYUAN FRP ELECTRICAL APPLIANCE MFR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The durability is poor. Due to the outdoor environment, cement products are easily damaged by environmental erosion and freeze-thaw, which limits the use area;
[0004] 2. The cement cable trough has microscopic holes, which are easy to absorb water in a humid environment, and have a great impact on the internal cables and cables. Once short-circuited, there is a risk of accidents;
[0005] 3. The distance between each section of the cement cable duct is only 3-5 meters, but each section weighs more than 200kg. The weight is too heavy, and the installation is very inconvenient. It needs to be installed and transported by lifting machinery, and there are requirements for the load-bearing design of the elevated line;
[0006] 4. It is inconvenient to maintain and replace the cement cable trough in the later stage, and the production cycle is about 1 month

Method used

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  • Novel composite material cable trough box for rail transit
  • Novel composite material cable trough box for rail transit
  • Novel composite material cable trough box for rail transit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The new composite material cable trough box for rail transit in this embodiment includes a cable trough body 1 and a cable trough cover 2 that covers the upper surface of the cable trough body 1 . Two rectangular slots 3 , one wide and one narrow, are arranged inside the cable slot body 1 along the length direction. The length of the cable groove body 1 is 3-20 meters. structured as figure 1 shown.

[0031] The cable trough box (including the cable trough body 1 and the cable trough cover 2) is prepared by the pultrusion process from each component with the following weight:

[0032]

[0033] The preparation method is as follows: add the release agent to the unsaturated polyester resin, stir with a high-speed disperser at a speed of 1000 rpm for 1 minute, and then add the other components in sequence. During the addition process, the high-speed dispersant should continue to disperse. And the stirring speed is kept above 1000 revolutions per minute. After all the m...

Embodiment 2

[0037] The new composite material cable trough box for rail transit in this embodiment includes a cable trough body 1 and a cable trough cover 2 that covers the upper surface of the cable trough body 1 . Two rectangular slots 3 , one wide and one narrow, are arranged inside the cable slot body 1 along the length direction. The length of the cable groove body 1 is 3-20 meters. structured as figure 1 shown.

[0038] The cable trough box is prepared by the pultrusion process from the components with the following weights:

[0039]

[0040]

[0041] The preparation method is as follows: add the release agent to the unsaturated polyester resin, stir with a high-speed disperser at a speed of 1000 rpm for 1 minute, and add the other components to the above resin in turn. During the addition process, the high-speed dispersant should be Continue to disperse, and keep the stirring speed above 1000 revolutions per minute. After all the materials are added, continue to disperse f...

Embodiment 3

[0045]The new composite material cable trough box for rail transit in this embodiment includes a cable trough body 1 and a cable trough cover 2 that covers the upper surface of the cable trough body 1 . Two rectangular slots 3 , one wide and one narrow, are arranged inside the cable slot body 1 along the length direction. The length of the cable groove body 1 is 3-20 meters. structured as figure 1 shown.

[0046] The cable trough is prepared by pultrusion from the following components by weight percentage:

[0047]

[0048]

[0049] The preparation method is as follows: add the release agent to the unsaturated polyester resin, stir with a high-speed disperser at a speed of 1000 rpm for 1 minute, and add the other components to the above resin in turn. During the addition process, the high-speed dispersant should be Continue to disperse, and keep the stirring speed above 1000 revolutions per minute. After all the materials are added, continue to disperse for 5 minutes ...

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Abstract

The invention provides a novel composite material cable trough box for rail transit. The novel composite material cable trough box comprises a cable trough body (1) and a cable trough cover (2) which covers the upper surface of the cable trough body (1), wherein the cable trough box is prepared from the following components in parts by weight by virtue of a pultrusion process: 15-35 parts of unsaturated polyester resin, 15-35 parts of aluminum hydroxide micro powder, 40-70 parts of glass fiber, 0.5-1.5 parts of mold releasing agent, 0.1-0.2 part of ultraviolet absorbent and 3-10 parts of additives. The cable trough box provided by the invention has the advantages of high flame-retardant performance, low smoke toxicity, high strength, low density, good aging resistance, convenience in assembly, low cost, short production cycle and the like.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a novel composite material cable trough box for urban rail transit. Background technique [0002] With the progress of society, the development of science and technology, and the acceleration of urbanization in all parts of the country, the construction of urban rail transit has also entered a stage of rapid development. In the construction of rail transit, a large number of cables and signal lines need to be laid on the whole line, so the safety protection of cables has been paid more and more attention by people. The cable protection grooves currently used in rail transit are made of cement, which has the following disadvantages in actual use: [0003] 1. The durability is poor. Due to the outdoor environment, cement products are easily damaged by environmental erosion and freeze-thaw, which limits the use area; [0004] 2. The cement cable trough has microscopic holes, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/06C08K13/04C08K7/14C08K3/22C08K5/098C08K5/14C08J5/08B29C70/52
Inventor 钟斌周良华俞碧波许忠张宵华张文武赵勤王军平杨树松
Owner NINGBO HUAYUAN FRP ELECTRICAL APPLIANCE MFR
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