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A portable flame spread speed and smoke concentration test device and test method

A flame spread and smoke concentration technology, applied in the measurement of color/spectral characteristics, chemical analysis using combustion, etc., can solve problems such as fire safety hazards, property damage, casualties, etc. The effect of capacity

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

[0004] Extruded polystyrene foam (XPS), model polystyrene foam (EPS) or rigid polyurethane foam (PU) and other high-molecular organic thermal insulation materials are used as exterior walls in the current building design and construction in my country. Or roof insulation materials, organic insulation materials have a wide temperature range, good durability, and high cost performance, but there are still some problems and major hidden dangers, among which fire safety issues have become particularly prominent in recent years
The above-mentioned organic foam insulation materials are all flammable materials, which have great hidden dangers in fire safety, and have caused heavy casualties and property losses

Method used

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  • A portable flame spread speed and smoke concentration test device and test method
  • A portable flame spread speed and smoke concentration test device and test method
  • A portable flame spread speed and smoke concentration test device and test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] ① Fix the EPS polystyrene board KH-1 on the top cover of the combustion equipment, so that one end of the measured sample length is above the U-shaped ignition device, and the other end is flush with the connection between the combustion equipment and the transition neck; the sample size is 110× 18×3cm, the accuracy deviation is within 0.5cm;

[0045] ② Turn on the temperature measurement switch of the thermocouple, the photoelectric sensor switch and the exhaust fan, open the fuel gas valve, ignite the U-shaped ignition device, ignite the sample to be tested until it continues to burn, then close the fuel gas valve, and extinguish the U-shaped ignition device;

[0046] ③ The burning point is based on the midpoint of the front and rear edges of the burning line. When the burning point reaches the 0 scale of the steel ruler with scale, start timing with an electronic stopwatch, and record the burning length of the sample and the absorbance value of the photoelectric senso...

Embodiment 2

[0052] ① Fix the modified EPS polystyrene board KH-2 on the top cover of the combustion equipment, so that one end of the measured sample length is located above the U-shaped ignition device, and the other end is flush with the connection between the combustion equipment and the transition neck; the sample size is 110×18×3cm, the accuracy deviation is within 0.5cm;

[0053] ② Turn on the temperature measurement switch of the thermocouple, the photoelectric sensor switch and the exhaust fan, open the fuel gas valve, ignite the U-shaped ignition device, ignite the sample to be tested until it continues to burn, then close the fuel gas valve, and extinguish the U-shaped ignition device;

[0054] ③ The burning point is based on the midpoint of the front and rear edges of the burning line. When the burning point reaches the 0 scale of the steel ruler with scale, start timing with an electronic stopwatch, and record the burning length of the sample and the absorbance value of the pho...

Embodiment 3

[0060] ① Fix the modified EPS polystyrene board KH-3 on the top cover of the combustion equipment, so that one end of the measured sample length is above the U-shaped ignition device, and the other end is flush with the connection between the combustion equipment and the transition neck; the sample size is 110×18×3cm, the accuracy deviation is within 0.5cm;

[0061] ② Turn on the temperature measurement switch of the thermocouple, the photoelectric sensor switch and the exhaust fan, open the fuel gas valve, ignite the U-shaped ignition device, ignite the sample to be tested until it continues to burn, then close the fuel gas valve, and extinguish the U-shaped ignition device;

[0062] ③ The burning point is based on the midpoint of the front and rear edges of the burning line. When the burning point reaches the 0 scale of the steel ruler with scale, start timing with an electronic stopwatch, and record the burning length of the sample and the absorbance value of the photoelectr...

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Abstract

The invention relates to a portable flame spread speed and smoke concentration testing device and testing method, which is composed of ignition equipment, combustion equipment, transition neck and smoke equipment, wherein the ignition equipment is located inside the combustion equipment; the transition neck is located at the end of the combustion equipment, for The transition between the combustion equipment and the flue gas equipment; the transition shrinkage and the flue gas equipment are connected and sealed by a connecting sleeve, the connecting sleeve is made of asbestos or rock wool refractory material, and the transition shrinkage and the flue gas equipment are connected, Fixing and sealing The advantages of the present invention are that the test device has a wide range of applications and can evaluate the fire resistance of different systems of building exterior insulation materials. The test device can be disassembled and assembled, and is easy to carry. It can evaluate the fire resistance of materials at the construction site and production base. The present invention not only evaluates the flammability of the sample through the flame spread speed, but also obtains the ignition point temperature of the material. .

Description

technical field [0001] The invention relates to a portable flame spreading speed and smoke concentration testing device and testing method. Background technique [0002] Energy and the environment are an important part of today's world issues. With the rapid development of the economy, my country's energy consumption has grown very rapidly. Industrial energy consumption, building energy consumption and transportation energy consumption are the main aspects of my country's total energy consumption. Among them, building energy consumption is the main growth point of my country's future energy consumption, with an annual increase of about 15% in recent years. my country's annual construction area of ​​new urban and rural housing is nearly 2 billion square meters, of which more than 95% are high-energy buildings; existing buildings are nearly 42 billion square meters, and about 99% are high-energy buildings. The annual power consumption of buildings in the country is 420-500 bi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N31/12G01N21/31
Inventor 马保国黄健赵子强宋雪峰殷海波代柱端段超群
Owner WUHAN UNIV OF TECH