What are the types of detectors for fireproof rolling shutter doors?_Shandong Huomande Security Technology Co., Ltd.

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What are the types of detectors for fireproof rolling shutter doors?

Jul 11,2025

The internal structure of the fireproof rolling shutter door mainly includes chains, detectors, and controllers.

The internal structure of the fireproof rolling shutter door mainly includes chains, detectors, and controllers. A detector is an important prerequisite for achieving the function of a fire door. Due to the many differences in the installation environment of detectors, the installation method should be determined based on the design requirements of the building, the actual situation of the construction site, and the standards and requirements of fire prevention regulations during the actual installation process. After running for a period of time, the detector of the fire door will give a false alarm due to contamination. Therefore, it is necessary to modify and adjust the parameters of detectors according to the specific conditions of different types of detectors and the on-site environment. Among them, it is necessary to apply fuzzy control technology to effectively prevent the occurrence of false alarms. At present, the commonly used roller shutter door detectors mainly include the following types:

1. Photoelectric smoke detector

This type of fireproof rolling shutter door detector is more suitable for use in factories and hotels. Its basic characteristics are good insect and dust resistance, which can effectively resist the interference of external light. It is equipped with a complete A/D conversion 8-bit microcontroller internally. A scientific and comprehensive fire detection program has been designed, which can effectively prevent false alarms and has good electronic coding function.

2. Ultraviolet flame detector

This type of detector is mainly used to detect ultraviolet rays formed by the combustion of substances, in order to determine fires, and is more suitable for use in places where open flames are particularly likely to form during fire accidents. This type of detector should be used when the height of the room is greater than 20 meters. This type of detector is mainly based on smoke detectors with light cross-section images, and can perform good fire detection and status inspection on visible and infrared heat sources. With the help of image processing and computer vision technology, combined with the spectral form of fire accidents, a scientifically improved three primary color difference and spread trend recognition model can accurately identify and determine the location of fire accidents.

3. Infrared beam smoke detector

This detector is suitable for tunnels, high-rise buildings, and warehouses, and is equipped with a microcontroller inside that can solidify the fire detection program. Align the indicator light and install it on the receiver for smooth installation and debugging. Its transmission and reception detection range can reach about 100 meters.

4. Ionic smoke fire detector

This detector has a single source dual protection structure and is mainly refined using fully sealed technology. It can quickly, accurately, and scientifically respond to fireworks and firecrackers generated in the early stages of fire accidents.

5. Constant temperature fire detector

This detector mainly detects the ambient temperature through the strong sensitivity of semiconductor thermistor to temperature. It can gradually convert the detection signal into an analog signal and then send it to the fire alarm controller. In this way, when the detected temperature reaches the alarm value, the fire alarm controller can smoothly issue an alarm signal, and then the fireproof rolling shutter door can quickly fall down. When installing this detector, we should choose a scientifically reasonable location. If there are obstacles such as ventilation ducts in the installation site or defense area, the type of detector should be adjusted reasonably.

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