压缩空气泡沫产生系统及泡沫流变学性能的实验研究

摘要

该文介绍了一种压缩式空气泡沫灭火系统,该系统将压缩空气通入到有压混合液中,产生尺寸均匀,出口动量大的泡沫.结果表明,泡沫的粘性、润湿性均显著提高.试验采用了一种特殊设计的钟摆式测试装置,证明了泡沫屈服应力的存在,试验结果显示屈服应力随气体百分比和泡沫尺寸的提高而增大.%The paper described a newly developed high performance compressed air foam system (CAFS).The effective system generates uniform foam with greater momentum by injecting compressed air into flowing foam solution. Foam generated by this system presented superior viscous and wetting properties to water. A pendulum system was designed to measure yield stress of foam. The results proved the existence of yield stress of foam. And the increasing tendency of yield stress with gas fraction and bubble size has also been found out.