Organic fire-resisting composite glass fibre electric cable protective pipe and its production method

A technology of cable protection tube and flame-retardant composite, which is applied to the installation of organic insulators, cables, and cables in underground pipelines. The installation and construction are simple and convenient, and the friction coefficient is small

Inactive Publication Date: 2004-03-17
包国良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (2) Concrete conduit: the pipe is bulky, the labor intensity of installation and construction is high, the cost is high, and the excavation and exposure time of urban roads is long, which affects traffic
The inner wall of the pipe is rough, the cable is heavy, etc.
And due to the heavy weight of the pipe, if the joint is not properly handled or the soil quality is poor, it is easy to cause disconnection or settlement, and even cut off the cable in severe cases.
[0005] (3) PVC pipe: It also has disadvantages such as low strength, no flame retardancy, easy aging, brittle pipe, and short service life.
[0006] (4) Steel pipe: It is easy to corrode when buried in the ground. The installation and construction are labor-intensive, the progress is slow, and there are burrs. The cable will be scratched if you are not careful when threading the cable. Because it is a magnetic material, it needs special treatment when laying single-phase cables. to prevent eddy currents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1. Cut the glass fiber to a certain size as required.

[0047] 2. Preparation of unsaturated polyester resin

[0048] a) Put 105kg of propylene glycol, 138kg of ethylene glycol, 200kg of diethylene glycol, 315kg of phthalic anhydride, 302kg of maleic anhydride, 0.220kg of hydroquinone, 0.41kg of paraffin wax, and 0.47kg of naphthenic acid ketone into the reaction kettle for firing at 150-205°C 10-12 hours to make unsaturated polyester, the temperature is controlled at about 150 ℃ for use.

[0049] b) 586kg of styrene is placed in the dilution kettle, and the above-mentioned unsaturated polyester is put into to make an unsaturated polyester resin, and the dilution temperature is controlled at 85-95°C;

[0050] 3. Take 50kg of the prepared unsaturated polyester resin, put it in a mixing bucket, add 5kg of antimony trioxide and mix thoroughly, then add 0.275kg of cobalt isooctanoate (temperature below 25°C) as an accelerator and mix thoroughly to make a mixture for use. ...

Embodiment 2

[0054] 1. Cut the glass fiber to a certain size as required.

[0055] 2. Preparation of unsaturated polyester resin

[0056] a) Put 98kg of propylene glycol, 160kg of ethylene glycol, 160kg of diethylene glycol, 390kg of phthalic anhydride, 280kg of maleic anhydride, 0.220kg of hydroquinone, 0.35kg of paraffin, and 0.6kg of naphthenic acid ketone into the reaction kettle for firing at 150-205°C 10-12 hours to make unsaturated polyester, the temperature is controlled at about 150 ℃ for use.

[0057] b) Put 520 kg of styrene in the dilution kettle, put the above-mentioned unsaturated polyester into it to make unsaturated polyester resin, and control the dilution temperature at 85-95°C.

[0058] 3. Take 50kg of the prepared unsaturated polyester resin, put it in a mixing bucket, add 6kg of antimony trioxide and mix thoroughly, then add 3.31kg of cobalt isooctanoate (temperature below 25°C) as an accelerator and mix thoroughly to make a mixture for use.

[0059] 4. Take 5.5kg of...

Embodiment 3

[0062] 1. Cut the glass fiber to a certain size as required.

[0063] 2. Preparation of unsaturated polyester resin

[0064] a) Put 112kg of propylene glycol, 128kg of ethylene glycol, 190kg of diethylene glycol, 290kg of phthalic anhydride, 304kg of maleic anhydride, 0.2kg of hydroquinone, 0.48kg of paraffin, and 0.32kg of naphthenic acid ketone into the reaction kettle for firing at 150-205°C 10-12 hours to make unsaturated polyester, the temperature is controlled at about 150 ℃ for use.

[0065] b) Put 575 kg of styrene in the dilution kettle, put the above-mentioned unsaturated polyester into it to make unsaturated polyester resin, and control the dilution temperature at 85-95°C.

[0066] 3. Take 50kg of the prepared unsaturated polyester resin, put it in a mixing bucket, add 5kg of antimony trioxide and mix thoroughly, then add 2kg of cobalt isooctanoate (temperature below 25°C) as an accelerator and mix thoroughly to make a mixture for use.

[0067] 4. Take 5.5kg of th...

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PUM

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Abstract

The present invention relates to organic fire retarding composite glass fiber reinforced plastic electric cable protecting tube, which uses high strength glass fiber as reinforcer, and prepares mixed glue from unsaturated polyester resin (80-90 wt.%) antimony trioxide (8-16%), accelerator (0.47-6%) and solidifying agent (3-5%). It is prepared through primpregnating, winding, rolling, solidifying and compounding to form shape. The protecting tube is made by (wt.%) glass fiber 40-50, mixed glue 45-60. Adrantages: high strength, smooth inner wall, flexible, light, good insulation, corrusion resistant, ageing resistant, non-magnetic etc.

Description

Technical field: [0001] The invention relates to an organic flame-retardant composite glass-steel cable protection pipe and a production method thereof, which are suitable for the transformation of urban power grids, the construction of traffic roads and bridges, and the underground construction of telecommunication cables. Background technique: [0002] At present, the products used as cable protection pipes mainly include: asbestos cement pipes, concrete pipes, PVC pipes, steel pipes and other pipe materials. In the construction of cable projects with different requirements, each region adopts them according to their own characteristics and experience. With the improvement of cable engineering requirements and the needs of urban construction and operating experience, the above-mentioned pipes have gradually exposed their inherent insurmountable defects: [0003] (1) Asbestos cement conduit: Because it pollutes the environment and endangers the health of construction worke...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B3/08H01B3/42H01B17/58H02G3/04H02G9/06
Inventor 包国良
Owner 包国良
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