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为了提高设计精度及效率,缩短设计周期,在AutoCAD 2008平台上,成功开发了诱导轮水力设计的参数化CAD软件,并结合2维水力设计软件产生的数据,在Pro/E平台上成功开发了诱导轮3维造型软件.运用所开发的软件,进行了诱导轮设计,并对泵及诱导轮的气蚀性能进行了定常数值计算,得到了气蚀发生时泵及诱导轮内部气液两相分布规律,对临界气蚀余量下泵叶轮及诱导轮叶片表面的压力分布进行了分析,并对不同气蚀余量下泵叶轮以及诱导轮内部的空泡分布规律进行了探讨.试验验证表明:加装诱导轮后泵气蚀余量小于0.55m,满足设计要求.
In order to improve the design accuracy and efficiency and shorten the design cycle, a parametric CAD software for induced wheel hydraulic design was successfully developed on the AutoCAD 2008 platform. Based on the data generated by the 2-D hydraulic design software, the software was successfully developed on the Pro / E platform Induction wheel three-dimensional modeling software.Using the software developed, the induction wheel design was carried out, and the cavitation performance of the pump and the induction wheel were calculated. The cavitation occurred when the pump and the induced gas-liquid two-phase The distribution of pressure on the surface of pump impeller and the induced wheel under the critical cavitation allowance was analyzed and the cavitation distribution inside the pump impeller and the inducer under different cavitation allowances was discussed.The experimental results showed that : After the installation of induced wheel pump cavitation margin less than 0.55m, to meet the design requirements.