Smoke and phosgene composite fire detector and detection method

According to the smoke and phosgene composite fire detector and detection method provided by the invention. Thesmoke and phosgene composite fire detector includes a substrate; the substrate is provided with a plurality of guide-type flues on the surface and is internally provided with an optical sensor, a gas detector and a smoke detector, and the diameters of the guide-type flues are gradually reduced, so that smoke is accelerated to flow out by adopting a trumpet-shaped structure, the smoke flow resistance is reduced, the sensitivity and response speed of the detector are improved, and the optical sensor, the gas detector and the smoke detector are adopted to detect a fire at the same time, so that the phenomenon of failure to report the fire is avoided, the fire is effectively prevented from spreading and expanding, and casualties or property loss are avoided. 本发明提供的一种烟光气复合火灾探测器及探测方法，包括基体，其表面设置有多个引导式烟道，内部设置光学传感器、气体探测器和烟雾探测器，由于引导式烟道的直径逐渐减小，采用喇叭形结构使烟气加速流出，减小了烟气流动阻力，提高了探测器的灵敏度和响应速度，同时采用光学传感器、气体探测器和烟雾探测器同时进行探测