The sealing problem of flash vaporization equipment interferes with the flash evaporation process and reduces flash evaporation equipment's operating efficiency, wasting energy. This issue has not been given sufficient attention. The influence of air inflow rate on low-pressure static flash evaporation is studied by adding an intake valve on the flash chamber in experiments. The suitable adjustment ranges of the intake and extraction valves' opening levels are determined through experiments. By analyzing the effects of different initial back pressures and initial liquid temperatures on the flash process, the relationship between the dimensionless evaporation efficiency and the dimensionless rate of pressure rise caused by the air inflow is proposed.

闪蒸设备的密封问题会干扰闪蒸过程，降低闪蒸设备的运行效率，浪费能源。这个问题没有得到足够的重视。实验中通过在闪蒸室上增加进气阀，研究了空气流入量对低压静态闪蒸的影响。进、排气门开度的合适调节范围是通过实验确定的。通过分析不同初始背压和初始液体温度对闪蒸过程的影响，提出了无量纲蒸发效率与进气引起的无量纲升压率之间的关系。