The invention relates to the technical field of
building material testing, in particular to a
fire resistance detection device for a fire-resistant air duct, which comprises a base, two groups of fans fixedly connected to the top end of the base, an air
storage tank arranged between the two groups of fans, a first
test tube arranged at one end of each fan, and a second
test tube arranged at one end of each fan.
Combustion furnaces are arranged at the ends, away from the fan, of the first
test tube and the second test tube. Through cooperation of the gas
storage tank and other parts, the environment of the fire-resistant air
pipe under the two conditions of external fire and internal and external fire is simulated, and through cooperation of the external
thermometer and the intelligent
infrared camera, the
temperature difference of the fire-resistant air
pipe inside and outside the
combustion furnace is detected so as to check the heat insulation property and integrity of the fire-resistant air
pipe. Whether the
internal pressure of the fire-resistant air pipe is stable or not is detected through the cooperation of the fan and the sealing block, and whether a gap exists between the first test pipe and the second test pipe or not is checked through the cooperation of the fan and the air
storage tank, so that the checking steps are simplified, the checking procedure is optimized, and the detection range is expanded.