LFY-637 Flooring material radiant heat source combustion performance tester

Main purpose

Comply with the technical parameters specified in GB/T11785-2005 and ISO9239-1:2002, including radiant heat flux, convective heat flux, radiant flux corresponding to the farthest distance of flame spread on the test piece, radiant energy beyond flame extinction, curves corresponding to radiant flux, flames with sustained combustion, and the distance propagated in the length direction of the test piece.

Technical indicators

1. Adopt computer control and computer operation;

2. The test chamber utilizes calcium silicate boards with a thickness of 13±1mm and a nominal density of 650kg/m3, and the observation window is composed of fire-resistant glass measuring (110±10)×(1100±100)mm;

3. Power supply voltage: AC220V±10%, 50Hz;

4. Timing accuracy: ≤1s/h;

5. Heat flow meter range: 0-15kw/m²;

6. Accuracy of heat flow meter: ±0.1 Kw/m²;

7. Heat flux accuracy: <±3%;

8. Blackbody temperature deviation: <±5℃;

9. Thermal radiation high temperature measurement range: 400~900℃;

10. Measurement distance: 1.4m; measurement area: ø250mm;

11. Exhaust velocity: (2.5±0.2) m/s;

12. Exhaust capacity: (39-85) m³/min;

13. Radiant heat source plate: porous refractory plate, with a surface size of 300±10mm*450±10mm;

14. The heat resistance of the radiant heat source plate is greater than 900℃;

15. Supply radiation gas flow range: adjustable from 3-30L/min (propane);

16. Air flow range: 35-350L/min;

17. Length of blue inner cone of ignition source: adjustable from 10-20mm, with an error of ≤±2mm

18. Flue and box temperature: K-value sheathed thermocouple, room temperature to 800℃, accuracy ±1℃;

19. Optical density measurement of flue gas: 25%, 50%, 70% optical filters;

20. Test procedure curve calibration: heat flux at radiant flux (5.1±0.2) kW/m²

21. The flow rate and wind speed of the smoke exhaust duct can be adjusted for measurement.

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