汽爆系统中进料密封阀门的结构设计及稳定性分析.PDF

安徽农业大学学报, 2014, 41(3): 517-522 Journal of Anhui Agricultural University [DOI] 10.13610/ki.1672-352x027 网络出版时间：2014-4-23 15:06:47 [URL]/kcms/doi/10.13610/ki.1672-352x027.html 汽爆系统中进料密封阀门的结构设计及稳定性分析 1 1* 2 刘 峰 ，孔晓玲 ，赵敏晖 (1. 安徽农业大学工学院，合肥 230036 ；2. 云南天际旭能新能源科技有限公司，昆明 650000) 摘 要：针对汽爆系统中进料口阀门进料效率低，容易漏气等问题，设计了一种集进料、密封和开启为一体的 进料密封阀门。根据阀门的材质和使用环境，对阀门中的阀芯进行了理论分析，并利用 ANSYS Workbench 软件对 其进行强度分析，得到了阀芯的最大变形量发生位置以及能够满足其稳定进料和密封时螺旋轴的最佳直径和最佳转 速，经理论计算和强度校核，阀门在正常工作环境下，其阀芯的强度完全满足设计要求。对不同进料时间和转速对 阀门的进料稳定性影响进行试验研究，确定 150 kg 玉米秸秆完成进料时的最佳转速为 200 r·min-1 ，最佳进料时间为 5 min。 关键词：汽爆系统；理论分析；强度校核；试验研究 中图分类号：S224.29 文献标识码：A 文章编号：1672−352X (2014)03−0517−06 Structure design and stability analysis of sealing valve for feed in steam explosion system 1 1 2 LIU Feng , KONG Xiaoling , ZHAO Minhui (1. School of Engineering, Anhui Agricultural University, Hefei 230036; 2.Yunnan Tianji Xuneng New Energy Co. Ltd, Kunming 650000) Abstract: In order to solve low feed control efficiency, easy leakage and other problems of inlet valve in the steam explosion systems, a feed valve which simultaneously achieves feeding, sealing and opening was designed. Through theoretical analysis of valve core according to material and working environment of valve and intensity using ANSYS Workbench, the maximum deformation position of valve core, the optimum diameter and the best speed of screw shaft which can ensure the stability of feed and seal were obtained. Through theoretical calculation and intensity check, the strength of valve core fully meets the design requirements under normal working condi- tions. The experimental test for the impact of feeding time and speed on the stability of feed shows