便携式热气溶胶灭火器在家用汽车上的应用

摘要

With the improvement of people's security awareness ,the vehicle fire extinguisher has become a kind of necessary facility .However , a person who uses the dry power fire extinguisher may be burned by the fire when o-pening the engine hood .In order to solve this problem , a method of extinguishing fire by using air fire extinguisher in the case of not opening the hood was proposed .The authors analyzed the merits , disadvantages of pyrosol , pro-posed the method for overcoming its defects ,and described the merits of chemical coolant .The experimental results show that , with the assistance of chemical coolant , the temperature of the nozzle of the pyrosol fire extinguisher is lowered apparently , and the fire extinguishing ability is greatly improved .Therefore, the effect for extinguishing fire in the engine of a car is excellent .%随着人们安全意识的提高，车用灭火器已成为一种必备设施，然而传统干粉灭火器需对准着火部位喷射灭火，掀开汽车引擎盖时窜出的火焰会造成灭火人员被烧伤。为解决这一问题，提出一种在不打开汽车引擎盖情况下用气体灭火器实现灭火的方法。通过分析热气溶胶优缺点及克服其缺陷的方法，阐述了化学冷却剂的优点，并用实验进行了验证。实验结果表明配合使用化学冷却剂，热气溶胶灭火器喷口温度明显降低，灭火能力大为提高，对汽车引擎火有很好的灭火效果。