通过理论推导,分析储存体积相同、管道进口压力相同和变化两种情况下,两种不可压缩流体不稳定流动的时间比,证明水和不可压缩流气体灭火剂喷射时间的相似性,获取了水替代不可压缩流气体灭火剂喷射时间的定量修正参数。以七氟丙烷和水为例进行了实际喷射对比实验,进一步验证了理论推导的修正参数的准确性。 Through the theoretical derivation, the time ratio of two incompressible fluid unsteady flows under the same storage volume and the same inlet pressure of the pipeline is analyzed. The similarities between the jetting time of water and incompressible flow gas are proved, and the water Replaces quantitative correction parameters for incompressible flow gas extinguishing agent injection time. Taking heptafluoropropane and water as examples, an actual jetting experiment was carried out to verify the accuracy of the theoretically derived correction parameters.