一种新型偏心蝶阀的设计与分析

发布时间：2018-10-18 18:57

【摘要】：针对国内气动三偏心蝶阀易产生严重的"水锤"现象,设计了一种新型偏心蝶阀结构,并对三偏心蝶阀和新偏心蝶阀的内部流场特性进行了有限元模拟分析。介绍了新结构蝶阀的构造原理,分析了三偏心蝶阀和新结构蝶阀的压力云图、速度云图和流线分布图,得到了其流量特性和流阻特性。分析结果表明,新结构蝶阀增大了小开度下的流阻系数,减小了关闭瞬间的流量变化量,减轻了"水锤"现象。
[Abstract]:Aiming at the serious "water hammer" phenomenon of pneumatic triple eccentric butterfly valve in China, a new type of eccentric butterfly valve structure is designed, and the internal flow field characteristics of three eccentric butterfly valve and new eccentric butterfly valve are simulated by finite element method. This paper introduces the construction principle of the new structure butterfly valve, analyzes the pressure cloud diagram, velocity cloud diagram and streamline distribution diagram of the three eccentric butterfly valve and the new structure butterfly valve, and obtains its flow characteristics and flow resistance characteristics. The analysis results show that the new structure butterfly valve increases the flow resistance coefficient under the small opening, reduces the flow rate change in the closing moment, and reduces the "water hammer" phenomenon.
【作者单位】：重庆理工大学;重庆川仪调节阀有限公司;
【基金】：重庆市应用开发计划项目(cstc2014yykf A70003)
【分类号】：TH134

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