Comprehensive detection simulation experiment device for fire detection performance

Abstract

The invention provides a comprehensive detection simulation experiment device for fire detection performance. The comprehensive detection simulation experiment device comprises an experiment table body (1), a matched simulation generation device, a measuring and controlling system and a fume extractor (20). The experiment device has a conventional fire detection performance detection function, can be combined according to conditions of detectors and characteristics of suitable places, is capable of overcoming the defects that existing devices do not take fume distribution characteristics and dust, water mist and wind speed changes into consideration and detection performance is affected by the positions of the detectors, and has the advantages of multiple functions, simple structure, high reliability, convenience in assembly and disassembly and low cost. The device is capable of performing various experiments of small-size standard fire experiments, flow equalizing fume simulation, practical application environment simulation and the like, and influences on fire detection performance by the positions of fire detectors relative to a fire source are considered. Enough detected fire detector mounting threaded holes are formed in a ceiling of a firing chamber, so that positions of the fire detectors in the firing chamber are changed conveniently according to practical situations of the fire detectors.

Description

technical field [0001] The invention belongs to the technical field of fire detection, and in particular relates to a simulation experiment device for fire detection performance detection. Background technique [0002] The performance of fire detectors directly affects the timeliness and reliability of fire alarms, and is directly related to the safety of people's lives and property. Therefore, testing the comprehensive performance of fire detectors in different target places has become a subject of concern. [0003] Existing fire detection performance testing methods can be divided into two types: one is described in "National Standard Point Smoke Detector of the People's Republic of China" GB4715-2005, a standard test fire is generated in a standard combustion laboratory, and the detector is measured The fire smoke parameter detection fire detector's sensitivity, anti-interference ability and other performance indicators during the action; the other is the "National Stand...

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Problems solved by technology

Because the test pipeline is arranged horizontally, the position of the inlet of the simulation generating device is fixed, and the simulated smoke enters the test area through the rectification grid. It does not conform to the actual fire smoke situation, cannot reflect the influence of smoke distribution characteristics on detection performance, and cannot study the influence of dust, water mist and wind speed distribution changes on detection performance

In addition, the detector under test can only be installed in the center of the test area, and there is no research on the influence of the relative position of the detector and the fire point on the detection performance

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