Conformity with standards: ENISO11612, ENISO11611, ISO13506, EN469:2005
Scope of application: The combustion dummy test system is used to test the overall thermal protection performance of protective clothing.
Product Details: Complete combustion dummy system, consisting of combustion chamber, combustion dummy and air supply control system, etc.
Test standards ENISO11612, ENISO11611, ISO13506, EN469:2005, etc. are applicable to the test system.
The combustion dummy test system is a computer-controlled test system, consisting of a combustion dummy, a thermal sensor group, a flame generation device, a computer control module, a data acquisition and processing module and a burn analysis module. The first four parts are mainly realized by the corresponding hardware, and the last four parts are solved by using software programming and model building.
The burning dummy model is a 1:1 adult male model, made of stable, flame inert, high strength FRP with a thickness of 2-3mm and a surface area of 1.72m2; a certain number of sensors are evenly distributed on the surface of the head, torso, legs and arms of the dummy model; and the outer surface of the dummy model is sprayed with black flame retardant and high temperature resistant paint; in the head of the dummy, there are processed sensor data export line, convenient for the instrument to collect and process the data signal.
The sensor cluster includes thermal sensors and pressure sensors. The thermal sensors consist of more than 120 heat flow sensors, which are uniformly distributed on the surface of the dummy, each sensor represents a certain surface area of the physical condition of the skin; and each sensor is numbered, if the temperature value calculated by the sensor after the burn estimate to meet the second and third degree burn value, then it is marked by a different color into the analog digital human model. Since the temperature change of the flame is a dynamic process, the test sensor temperature range should be high and the response time should be short in order to achieve the dynamic process of the flame change test. The pressure sensor is mainly used to measure the gas pressure value in the gas container and gas pipeline to ensure that the experiment is carried out safely and controllably.
The flame generation device consists of 6 groups of 12 propane flame generators around the dummy. Each group of flame generators consists of a high-pressure liquefied gas tank, a buffer gas tank, a pressure pipe and gas pressure sensor, a flame nozzle with adjustable flame size and a guide flame. The flame action time generated by the flame generator is controlled by a computer-controlled simulation module, and the flame intensity is kept uniform and stable during this time.
The computer control module is composed of pre-programmed software. Its main function is to automatically check the status of each group of sensors related to the experiment before the experiment starts, and the ready command occurs after the status is problem-free; in the experiment, the computer control program controls the flame generator's action time and intensity, and automatically directs the data processing module to record the data changes of each sensor; in the experiment result stage, the recorded data are downloaded into the form of files In the experimental results stage, the recorded data are downloaded as files and saved, and the exhaust ventilation system is guided to cool and ventilate the combustion experimental chamber.
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