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Burning dummy function and parameters

There are many people do not know what is this product Burning Dummy, what is the use? Today for you to explain in detail.

1, the role of burning dummy: burning dummy is mainly in the field of thermal protection tests, mainly for testing the overall thermal protection performance of protective clothing.

2, the detailed parameters of the burning dummy - the Qinsun to provide you with
    
Conformity to standards:

ENISO11612, ENISO11611, ISO13506, EN469:2005

Scope of application:

Shanghai Qianshui burning 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.

Shanghai Qianshui precision technology combustion dummy test system is a computer-controlled test system, consisting of combustion dummy, thermal sensor group, flame generation device, computer control module, data acquisition and processing module and burn analysis module and other parts. 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 2-3 mm and a surface area of 1.72 m2; 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 heat-resistant paint; in the head of the dummy, there are processed In the head of the dummy, there is a processed sensor data export line, which is convenient for the instrument to collect and process the data signal.

The sensor cluster includes thermal and pressure sensors. The thermal sensors consist of more than 120 heat flow sensors, which are uniformly distributed on the surface of the dummy, and each sensor represents the physical condition of the skin over a certain surface area; and each sensor is numbered, and if the temperature value calculated by the sensor satisfies the second and third degree burn value after the burn estimation, then it is marked into the simulated digital human model by different colors. 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 free of problems; 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 is downloaded into the form of a file Save it, and guide the exhaust ventilation system to cool down and change the air of the combustion experiment bin.

Data acquisition and processing simulation, with the help of the computer control module, control the acquisition, amplification, conversion and storage of data from the temperature sensor and heat flow sensor, carry out signal pre-processing, convert the heat flow signal into the corresponding temperature value after the model, and then store the results temporarily for the burn estimation module.

The burn estimation module is designed to estimate the extent and degree of burns caused by the flame. The information obtained by the sensor on the temperature value of the dummy surface over time is input into the burn estimation model, and the burn estimation operation results in the burn integral value and the burn procedure value, which, combined with the digital human model mapping, results in the distribution of second and third degree burns on the dummy surface.

 
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