Integrated detection device for fire

Abstract

The invention provides an integrated detection device for fire,and belongs to the technical field of fire detection. The integrated detection device comprises: a sampling unit,wherein the sampling unit is used for sucking air from a detected area as air to be detected; an analysis unit,wherein the analysis unit is used for detecting the air to be detected to generate a characteristic value; an on-line monitoring and alarming system,wherein the on-line monitoring and alarming system comprises a control unit and an alarming unit,wherein the control unit is used for controlling the sampling unitto draw air to be detected from the area; the alarming unit is used for starting to alarm; a control host,wherein the control host is connected with the analysis unit and is used for judging whether the area is on fire through the analysis unit,and sending an alarm instruction to the on-line monitoring and alarming system to enable the alarming unit to start when judging that the area is on fire.

Description

technical field [0001] The invention relates to the technical field of fire detection, in particular to a comprehensive fire detection device. Background technique [0002] At present, fire detectors in many places are generally based on conventional smoke, temperature, flame, and infrared beam detectors. From the perspective of installation, these detectors are installed scatteredly in every corner of the space. When encountering a hidden space such as a cable trench, it is easy to cause false alarms if the detector cannot be installed; when the space is large or there are obstacles in the space, fire The fire source is likely to be far away from the detector and complicated or blocked by obstacles so that the information of the fire source cannot be transmitted to the detector in time, resulting in delayed or even missed reporting; when encountering a complex environment with erratic airflow, the smoke is easily blown away Or blowing away from the direction of the detecto...

AI Technical Summary

Problems solved by technology

From the perspective of installation, these detectors are installed scatteredly in every corner of the space. When encountering a hidden space such as a cable trench, it is easy to cause false alarms if the detector cannot be installed; when the space is large or there are obstacles in the space, fire The fire source is likely to be far away from the detector and complicated or blocked by obstacles so that the information of the fire source cannot be transmitted to the detector in time, resulting in delayed or even missed reporting; when encountering a complex environment with erratic airflow, the smoke is easily blown away Or blown away from the direction of the detector, it will also cause the detector to delay or miss the report

In addition to the above complex places and environments, even if the detector is in a normal environment, the smoke in the detected area slowly reaches the detector head with the free flow of air, which will also cause the delay of the detector.

In terms of detector types, under normal circumstances, smoke and flame detectors are more sensitive, and the alarm is faster, because as long as smoke or flame is generated by combustion, the smoke detector or flame detector cannot distinguish whether it is a real fire or not, and it will alarm, which is easy. lead to false alarms; for temperature detectors are greatly affected by the distance from the fire source, ambient temperature, and type of combustibles. The ambient temperature cannot reach the alarm value of ordinary temperature detectors (50°C-70°C) in the early stage, resulting in no alarm for the detectors

Therefore, if the above situation is encountered, the detection device installed on site not only fails to serve the purpose of early warning, but also delays the best time for fire rescue, causing equipment and personnel damage

Images