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A plastic fire detection tube for an automatic fire detection and extinguishing device

A technology for a fire extinguishing device and a fire detection tube, which is applied in the field of plastic fire detection tubes, can solve the problem that the preparation method of the plastic fire detection tube has not been disclosed, and achieves the effects of good environmental aging resistance, good high and low temperature resistance, and convenient use.

Inactive Publication Date: 2014-10-01
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no disclosure about the plastic fire detector tube meeting this requirement and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Get nylon-66 69Kg, EVA 20Kg, nano calcium carbonate 5Kg, aluminum distearate 1 Kg, cadmium red 2 Kg, nylon 316 masterbatch 3Kg. Under the protection of the vacuum feeding device, a plastic fire detector tube with an inner diameter of 4.0±0.04mm and a wall thickness of 1.0±0.1mm is extruded with a single-screw extruder, and the density is 1.15g / cm 3 .

[0022] The fire detector tube in CO 2 When the pressure is 5.8MPa and the outside temperature reaches 160±2°C, the open flame will be extinguished by smooth blasting.

Embodiment 2

[0024] Take nylon-6 72.5Kg, EPDM 16Kg , talcum powder masterbatch 6Kg, stearyl alcohol 1 Kg, carbon black 1.5Kg, nylon 316 masterbatch 3Kg. Under the protection of the vacuum feeding device, a plastic fire detector tube with an inner diameter of 4.0±0.04mm and a wall thickness of 1.0±0.1mm is extruded with a single-screw extruder, and the density is 1.15g / cm 3 .

[0025] The fire detector tube in CO 2 When the pressure is 5.8MPa and the outside temperature reaches 160±2°C, the open flame will be extinguished by smooth blasting.

Embodiment 3

[0027] Take nylon-11 82Kg, POE10Kg , CaV102 2Kg, zinc stearate 1 Kg, cadmium red 2 Kg, nylon 316 masterbatch 3Kg. Under the protection of the vacuum feeding device, a plastic fire detector tube with an inner diameter of 4.0±0.04mm and a wall thickness of 1.0±0.1mm is extruded with a single-screw extruder, and the density is 1.15g / cm 3 .

[0028] The fire detector tube in CO 2 When the pressure is 5.8MPa and the outside temperature reaches 160±2°C, the open flame will be extinguished by smooth blasting.

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Abstract

The invention relates to a fire detecting tube for an automatic fire detecting and extinguishing device. The fire detecting tube comprises the following components and contents according to the mass percentage: 63 to 88 % of nylon, 5 to 20 % of elastic modifier, 2 to 10 % of crystal modifier, and 5 to 7 % of additive. The fire detecting tube has the advantages that: by adopting the elastic modifier and the crystal modifier for adjusting the crystallinity of the nylon, and regulating the melting point of a composite material, the blasting at a particular temperature can be realized; when the ambient temperature is below 140 DEG C, the fire detecting tube has high strength and toughness, and can endure very high internal pressure; when the ambient temperature is 160+ / - 2 DEG C, and blasting is carried out under the pressure function of fire extinguishing gas in the tube, the open fire can be promptly extinguished. Meanwhile, the fire detecting tube also has good high and low temperature resistance performance, and good environmental aging resistance performance, and the strength and toughness of the fire detecting tube can meet the requirement of enduring high pressure gas within the range of minus 40 DEG C to 140 DEG C. The fire detecting tube has the characteristics of easiness in use, low cost and simple preparation process.

Description

technical field [0001] The invention relates to a plastic fire detection tube for an automatic fire detection and extinguishing device. Background technique [0002] As a kind of disaster, fire causes increasing losses to national property and people's life safety under the situation of increasingly prosperous urban and rural economy. From the perspective of fire causes, electrical fires accounted for 27.9% of the total number of fires, ranking first among various fire causes. The loss caused by electrical fires has accounted for about 40% of the total fire losses, especially the vicious fires in recent years, most of which are caused by electricity. [0003] The gas fire extinguishing system is to store some gaseous compounds (at normal temperature) with fire extinguishing ability in normal temperature and high pressure or low temperature and low pressure containers, and release them to the fire area through automatic or manual control equipment when a fire occurs, so as t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/00C08L77/06C08L77/02C08L23/08C08L23/16C08K3/26C08K3/34C08K5/098C08K3/04
Inventor 徐任信王钧王翔杨小利段华军蔡浩鹏
Owner WUHAN UNIV OF TECH
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