苯菲尔脱碳中的蒸汽喷射闪蒸系统，由蒸汽喷射、被抽蒸汽的吸引、混合、扩压等过程组成。根据理论推导，建立了各部位Ｐ，Ｔ，ｉ″，Ｗ的关系。以外商的资料为依据，通过模拟计算，得出各级的蒸汽喷射效率、混合效率、扩压效率、喷射系数。这些数值都在情理范围之内，该软件对消化吸收国外技术有一定的指导意义 Benfil decarburization in the steam jetting flash system, by the steam jet, was pumping steam suction, mixing, diffusing process. According to the theoretical deduction, the relationship between P, T, i "and W of each part was established.According to foreign data, the steam injection efficiency, mixing efficiency, diffuser efficiency and injection coefficient at various levels were obtained through simulation calculation Numerical values ​​are within the reasonable range, the software to digest and absorb foreign technology has some guiding significance