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Combustion spreading test device and test method thereof

A test device and test piece technology, which can be used in chemical analysis using combustion, aircraft component testing, etc., and can solve problems such as low versatility

Active Publication Date: 2021-02-02
THE SECOND RES INST OF CIVIL AVIATION ADMINISTRATION OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a combustion spread test device, which is used to solve the problem of low versatility of the existing combustion spread test device

Method used

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  • Combustion spreading test device and test method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The embodiment is basically as attached figure 1 As shown: the combustion spread test device in this scheme includes a box body 1 with a cuboid structure with an open front end, and a sample door for closing the box body 1 is provided at the front end of the box body 1; Insulated sample holder.

[0040] An exhaust fan 2 for exhaust and air circulation is installed on the top of the box body 1 . A strip burner that can be used to ignite the test piece and ignite the radiant panel 5 is installed at the bottom of the box body 1 . The left and right sides of the box body 1 are provided with rectangular viewing windows 7, and the viewing windows 7 are provided with high temperature resistant transparent materials. Through the window 7, the burning, spreading and dense smoke in the box body 1 can be visually seen, which is convenient for the test personnel to observe and record in time.

[0041] The radiant plate 5 is located above the strip burner, and the length of the r...

Embodiment 2

[0060] In this embodiment, the radiation plate 5 includes a plurality of heating units arranged in a matrix, and each heating unit works independently. Each heating unit is connected with a control box installed outside the box body 1, and the operation of the heating unit is controlled through the control box. The radiant plate 5 is composed of a plurality of independently working heating units arranged in a matrix, so that it is convenient to conduct local heat radiation tests on the test piece in sections from top to bottom or from left to right when necessary.

Embodiment 3

[0062] In this embodiment, the inner wall of the box body 1 is installed with inwardly inflatable special-shaped obstacles; the special-shaped obstacles include a flame-retardant film formed into a capsule and uniformly covered on the inner wall of the box body 1, and the fire-retardant film communicates with a protruding The connecting pipe of the box body 1 is equipped with a hydraulic pump, and the hydraulic pump is connected with a flame-retardant tank containing a flame-retardant liquid. The hydraulic pump can fill the flame-retardant liquid in the flame-retardant tank into the bag formed by the flame-retardant film. In the object, a special-shaped obstacle protruding toward the inside of the box 1 is formed to simulate the relative position of other cabin facilities adjacent to the test piece in the concealed combustion area, so that the situation during the test can be simulated more realistically and the test results are more accurate. The flame retardant film is a film...

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Abstract

The invention relates to the technical field of aircraft combustion tests, and discloses a combustion spreading test device and a test method thereof.The combustion spreading test device comprises a box body with an opening in the front end, and a sample door used for closing the box body is arranged at the front end of the box body; a clamping jaw for clamping a test piece is arranged at the topof the box body; a strip-shaped combustor used for ignition is arranged at the bottom of the box body, and a radiant panel used for generating heat radiation to a test piece is arranged above the strip-shaped combustor; and the radiation plate covers the test piece. The universality of the combustion spreading test device is improved.

Description

technical field [0001] The invention relates to the technical field of aircraft combustion tests, in particular to a combustion spread test device and a test method thereof. Background technique [0002] With the continuous development of my country's aerospace industry, the quality of aircraft is getting better and better, and the requirements for various materials on the aircraft are getting higher and higher. [0003] The flame retardancy of aircraft cabin materials has always been one of the basic requirements for materials selected on aircraft. The flame retardancy testing of existing aircraft cabin materials mainly includes the flammability test of cabin materials, the flammability test of seat cushions, the flame burn-through resistance test of cargo compartment linings, the heat release rate test of cabin materials, and the Material smoke density test. [0004] There are multiple test methods commonly used now, such as horizontal and vertical combustion tests, such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N31/12B64F5/60
CPCG01N31/12B64F5/60
Inventor 黄致尧陈龙陈元刘又瑞王玉琢于新华温士林苏正良谢飞
Owner THE SECOND RES INST OF CIVIL AVIATION ADMINISTRATION OF CHINA
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