This Flammability Test Device is a multi-functional combined test bench, which can realize the combustion test of large combustible gas burners and small gas burners for the airborne equipment, accessories and components in the designated fire zone of aircraft. The test samples include cables and electrical connectors, hoses and pneumatic components.
FAR 25.853 Part II,III,VII
1.The burner consists of elliptical combustion nozzle, igniter, flame sprayer, spoiler, equalizer, combustion cylinder, muffler and ejector. Burner nozzle is sprayed with carbon steel.
2.The current equalizer is made of 45 steel or 201 stainless steel. It is made according to standard drawings to make the air flow more uniform. The defect of unstable flame temperature caused by non-uniform air flow in the first generation burner is remedied.
3.The spoiler is made of 45 steel or 201. It is made according to the standard drawings, so that the air and fuel particles can be fully mixed, and the flame temperature can be more
uniform and stable.
4.Ejector: It plays a key role in air supply control. Provide sufficient air to the burner flame.
5.The imported muffler eliminates the noise caused by excessive wind speed.
6.The fuel supply system of burner is composed of special nozzle, oil guide pipe, oil pressure gauge, solenoid valve, pressure tank, air pressure system, etc.
7.The gas supply system of burner is composed of compressed air (provided by customers) pressure reducing valve, pressure gauge, pressure regulating valve, filter and so on. Compressed air source provided by customers: 0.9 MPA, The diameter of trachea is 25 mm.
8.Equipped with 10KV high pressure ignition system. Ignition wire is flame-resistant and temperature-resistant.
9.The burner flame is a mixture of air and oil. The temperature should not be lower than 1200 ±50ºC. Flames are conical in shape; yellow in color.
10.Ignition system, ignition wire has high temperature resistant material protection.
11.The test frame is the fixed burner frame and the temperature calibration frame.
12.The burner frame can move forward and backward, left and right. Adjustable horizontal, 45 degrees and vertical, three positions.
13.A calibration gauge is provided to determine the distance between the burner and the calibration device and the sample.