FAR 25.853 Part II,III,VII Aviation HOSE and Tube Flammability Tester
Introduction:
This test equipment 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.
Standard:
FAR 25.853 Part II,III,VII
Features
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. Aviation HOSE and Tube Flammability Test Equipment is 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 than1200±50℃. 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.
Test bench structure
1.The test frame is made of stainless steel, beautiful and corrosion resistant.
2.Aviation HOSE and Tube Flammability Test Equipment is equipped with steerable burner bracket for horizontal and vertical test and 45 degree combustion test
3.The burner is movable , which is convenient to move to the temperature and heat calibration position for calibration.
4.Aviation HOSE and Tube Flammability Test Equipment is equipped with temperature calibration tooling and temperature calibration system.
5.It is equipped with standard elliptical heater and imported fuel burner; the burner can ignite automatically
6.The combustion system is equipped with fuel tank, solenoid valve, oil pressure gauge, temperature detection system, air conditioning, igniter, fuel supply system, etc.
7.This tester is equipped with 7 imported thermocouples to calibrate burner flame temperature.
8.The position of burner can be adjusted according to different samples, and the horizontal or vertical combustion can be adjusted.
9.The flame temperature of fuel burner is not lower than 1200±50℃)
10.The flame heat flux of fuel burner is no less than 116kw/m2.
11.Aviation HOSE and Tube Flammability Test Equipment is equipped with independent computer control system and Labview software
12.Automatic monitoring of test, equipped with camera system, remote monitoring of test status
13.The burner frame is movable. Convenient switching of different samples;
14.The exhaust system is provided by customer’s laboratory.
15.Operation manual is supplied to instruct adjusting temperature and heat of burner.
16.Manual pressure regulation, automatic control of gas and oil circuit closing and opening.
Combustion system
1.Inlet pressure regulating valve and pressure gauge control air and gas pressure respectively
2.High Precision Pressure Regulating Valve Accurately Controls Gas Flow
3.Oil supply constant temperature control system. Ensure that the fuel is supplied to the burner under uniform density and pressure to ensure the flame temperature and heat stability.
4.Gas supply constant temperature control system: reduce the influence of air temperature on flame temperature and fuel combustion efficiency.
5. Automatic ignition system.
Control system:
1.Independent Control cabinet
2.Computer control, CPU I5 processor, 4 G memory, 500 G hard disk, 22 inch display;
3.Labview operation software, friendly interface, concise and beautiful; modular function design
4.Equipped with computer automatic ignition system
5.It is equipped with a flame calibration system. The temperature curves of seven thermocouples are displayed in real time, and the indicator lamp shows whether the temperature meets the standard requirements.
6.Sound prompts all temperature calibrations to meet standard requirements
7.It is equipped with heat flux density calibration system.
Automatic ignition system
1.12 kV High Voltage Automatic Igniter
Flame calibration system:
1.Thermocouple imported from the USA, 304 armoured, 1.5mm in diameter, real-time acquisition of flame temperature, accuracy of 0.1 C;
2.16 bit high performance temperature data acquisition module;
3.The calibration temperature range is 1100±80℃.
4.Temperature calibration includes calibration framework, 7 imported temperature sensors, temperature acquisition device and software system.
5.The elliptical heater is made according to the standard size. For more specific sizes are more detailed as described in the standard document,pls read the standard
6.Some parts of the second generation burner are imported,including muffler and ejector.
7.Pressure tank can burn for about 20 to 40 hours. The fuel supply is powered by compressed air.
Water pipe heat flux density calibration system
1.Two imported K-type thermocouples, 304 armoured, 1.5 in diameter, were used to record the temperature data of the inlet and outlet in real time.
2.16 bit high performance temperature data acquisition module;
3.Automatic control of calibration process system, ignition-preheating-calibration;
4.Data acquisition for 3 minutes, recording 1 data per second;
5.The system automatically calculates the current heat flux density
Test System (Software System):
1.Computer Automatic Control of Test Flow; Computer+Labview Automatic Control System
2.The test time is set independently and the timing accuracy is 0.1 seconds.
3.Combustion effect can be observed on a computer screen
4.System Automatically Generates Test Report
Parameters
1.Power Supply:AC 220 50/60Hz,
2.Maximum power: 2000VA;
3.Flame temperature: adjustable from room temperature to 1100 ℃
Relevant component dimensions:
Burner Occupation area: 1.5 m X 1.5 m
Horizontal combustion Occupation area: 2.5 m x 2.5 m, 1.5 m high.
Vertical burning occupation area: 2.5 m x 2.5 m, 2.5 m high
Temperature calibration occupation area: 1.5 m X1.5 m, 1.5 m high
Calorific Calibration Coverage: Based on the customer's existing equipment
Burning Vibration Experiments Coverage: According to customer's existing equipment
Gas and oil supply system covers an area of 1 m X2 m and 1.5 m high. It is placed outside the combustion chamber, control chamber or hydraulic control chamber.
