阐述了泡沫的形成及聚并机制，探讨了泡沫最终稳定形成所需的条件，并通过构建完整的泡沫发生系统，设计新型的泡沫发生器，研究得出了供风量与产泡量之间呈先增大后减小的“抛物线”型关系，超过最佳风量（44～47m3/h）后，液气逐渐分离，消泡现象明显，泡沫因不能获得足够的气体动力，产泡量开始减小；泡沫驱动压力上、下限与水量呈“剪刀状”关系，水量小于0.703 m3/h或者大于1.052 m3/h 时，驱动压力变化剧烈，最大波动幅度9.1％，当水量在0.798～0.948m3/h时，驱动上限与驱动下限值重合，泡沫驱动压力趋于稳定，近似维持在0.068～0.069MPa；风量对泡沫的喷射有重要影响，风量为65m3/h时，喷射距离可达3m，但单纯依靠提升风量来进一步提升喷射距离存在局限性。%This paper introduced foam formation and coalescence mechanism.The condition needed for foam stable formation was dis-cussed.By constructing whole foam generation system , new-style foam generator was designed.Research showed that air supply and bubble production took on first-large-then-small parabola relationship.After exceeding optimum air supply (44~47m3/h), liquid and gas gradually separated , defoaming phenomenon was obvious.Foam production reduced for absent air pressure.Upper and floor limit of foam drive pressure and water volume took on scissor relationship.When water volume lesser than 0.703 m3/h or larger than 1.052 m3/h, drive pressure variation was large , maximum fluctuation range reached 9.1%;when water volume was within 0.798~0.948 m3/h, drive pressure tended to be stable and kept at 0.068~0.069 MPa.Air supply influenced foam injection largely , when it was 65m3/h, injection distance could be 3m, but it was limited only by increasing air supply to advance injection distance.
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