Burning dummy application prospect

Improvement

1) Further improves the sensor, closer to the nature of true skin. The selection of sensors is a very important part. The currently used sensors mainly have copper-sensors and skin analog sensors, but they are not enough. The copper sensor is different from the heat absorption speed of the skin, and the temperature of the skin is rising than the copper sheet sensor; the skin analog sensor's density, heat capacity, and the heat dissipation coefficient have a certain gap between the skin. Therefore, the sensor is therefore important to the heat absorption capacity of the skin, which is important for improving the accuracy of the combustion dummy test.

2) Combine fake people combined with the sweating dummy, comprehensively evaluate protective clothing. Under the current test conditions, both the TPP test device or the combustion dummy test system cannot simulate water vapor delivery. Hydrogging has an impact on protective performance. Firefighters are often wet during the fire extinguishing, and the firefighters will sweat themselves. If you can improve the combustion dummy, you can simulate the sweating state, that is, the perfect combination of the combustion dummy and the sweating dummy can provide an objective test results for the overall test of protective clothing, whether it is a protective performance test or comfort test. .

3) The intelligent research of combustion fake people is more realistic to simulate the fire. Most of the existing burning fake people in the world cannot be active. The difference in activity level must affect the test results of the protection performance, and the evaluation and study of thermal protection can not be limited to the stationary state. If you put a smart system to the fake man, make it more like a live-action, you can more real simulate the actual firefighter situation, more objectively evaluate the fire service.

4) Reproductive reproduction of various firefield conditions and broadens the field of flame retardant protective clothing. The current combustion dummy system can only simulate the fire environment, but in addition to fire, there may be water, flue gas, poison, improve the combustion dummy test system, so that it can simulate fire, and simulate water, poison, smoke The fire environment can broaden the research field of flame retardant protective clothing.

1 Burning dummy test technology is the optimal technology of internationally recognized objective evaluation of overall thermal protection performance. Future possible application areas:

2 Test and analyze clothing. Using the combustion dummy test system, it can carry out the evaluation and influencing factors of all kinds of fire-fighting equipment, military uniforms and other protective equipment. Shorten the new material and equipment research cycle, improve the research level, and promote the development of individual protective equipment. 3 study the human body. Using the combustion dummy test system, create a real flame-clothing-skin environment condition, monitor the heat flow and temperature changes in the fake people in the combustion process, providing effective biophysical research on further human skin tissue burn analysisThe data foundation.

4 Safety protection. In addition to fire protection services, ordinary clothing also requires certain flame retardancy. The combustion dummy can not only be used in military protective clothing tests, but also have important research significance for the heat damage caused by equipment research and development of thermal protective fabrics, clothing, etc. in civil use.

The main constitution of the combustion dummy system

The system is mainly due to the combustion dummy, data acquisition device, flame generating and control device, skin heat transfer model and burns assessment Model and system centralized control and application software platform, etc. The principle is to simulate the thermal exposure process of the body in the combustion flame, test the change in the surface temperature of the dummy, the estimated dimensions, three-degree burns and total burn area percentage, the larger the burns area, the resistance of clothing The worse the character of burning protection.

Burning dummy. Using non-metallic materials, the duration of the flame is generally 4s during clothing test, and the surface of the dummy needs to have good thermal stability under 300 ° C combustion flame conditions.

Sensors. The sensor of the burning dummy's surface on the combustion flame should be close to the human skin to the flame. At present, the sensors used in China mainly have three types of TPP copper sheet heat generator, adiabatic copper sheet sensor and embedded thermocouple sensor. The arrangement of the sensor needs to consider the factors such as dummy area, data acquisition, burn evaluation calculation. Data acquisition. The data acquisition device mainly completes signal acquisition processing of each sensor of the dummy surface. To ensure synchronous efficient acquisition of multiple sensor signals, multiple data processing units are required.

Flame production and control device. The flame generation and control device comprise a fuel (usually propane material), a gas delivery conduit and a burner.

Application software. The application software platform is the nerve center of the entire system, mainly consisting of data acquisition modules, detection and control modules, matrix operation modules, burn prediction analysis processing modules, and system resource management modules.

Article Source: Qinsun (Hong Kong) Co., Ltd.