Product Feature and Application of the Steiner Tunnel Test Apparatus

1. The stainless steel combustion test box body has a brick structure inside, which can resist the flame impact and has good thermal insulation performance;
2. Double-layer quartz glass observation window, can observe the flame spread distance, and record;
3. Using the indicator light recording method, the flame spread distance can be recorded more intuitively;
4. The cooling water circulation support bracket can support the combustion cover such as calcium silicate board;
5. Equipped with 2mm thick 304 stainless steel water seal groove to ensure that the smoke does not leak during the test;
6. 304 stainless steel insulation body cover, filled with high temperature insulation material;
7. Equipped with an escalator sample installation platform to facilitate the installation, removal of samples and inspection of the furnace;
8. Independent multi-function exhaust pressure detecting device: real-time monitoring of exhaust pressure changes during testing. Detection range 0～250Pa, accuracy ±0.5Pa, system indication pressure test accuracy ±2Pa;
9. Fan: 380V, 50Hz, 3Kw equipped with frequency converter can change the wind speed, the flow rate is at least 8000m3/h, and the flue gas generated by the sample combustion can be discharged out of the room in time to ensure the safety of the test;
10. Double-head gas burner: It can output standard 5.3MJ/min heat, and can control the gas flow rate by mass flow meter according to different standards. The measuring range is 0~160L/min, which can change the calorific value output of the burner and the maximum output. Energy up to 100MJ/min;
11. Automatic ignition system: to ensure the safety of the test, high-voltage igniter, 44KV, 50mA, the minimum high voltage of the ignition electrode is 1.8kVp;
12. Smoke density system: Provide a separate signal processing system to ensure that the sensor is linear;
13. Automatically record temperature and smoke sensing signals, and the sample collection frequency is 1 Hz;
14. Mass flow controller: 316 stainless steel material, the maximum pressure of 1000psig (70bar), leakage rate is less than 1 × 10-7sml / s, NIST calibration, 0 ~ 5VDC and 4 ~ 20mA signal, loop protection, propane flow range 0 ~ 2.3g / s, control speed ≤ 2s, control accuracy of ± 1% FS, repeatability ± 0.5FS, temperature range 0 ~ 50 ° C, humidity range 0 ~ 90%, digital display, automatic The gas supply meets the 5000Btu (5.3MJ)/min heat requirement during the control test, and the software automatically records the amount of gas used;
15. Standard test software can automatically record test data such as system wind speed, temperature and smoke density.