Abstract：The gap between body and rotor plays an important role in the safe operating of rotary valve. Based on the finite element method, thermodynamic and pseudo-fluid method, a thermal analysis about the body and rotor of rotary valve was carried out, and the temperature distribution was obtained. Based on the thermal-structure coupling strain analysis, thermal distortion was obtained, and through the deformation the requirement of the gap values between rotary valve body and rotor was found. Body temperature decreases gradually from inside to outside, the temperature of the rotor blades distributes evenly, and the temperature values on both ends of the rotor is lower. As the temperature of the material increases, the gap between the valve body and the rotor gradually increases. Material impact on the value of the gap between the rotor forces can be neglected. With the pressure on valve body increa-sing, the valve body clearance value between the rotor increases. For supporting greater force, other structural such as reinforcement can be added to the body to increase the structural strength.
宫恩祥, 夏天, 杨岩, 蔡皖锋, 胡海鹏. 基于热-结构耦合的旋转阀间隙分析[J]. 排灌机械工程学报, 2014, 32(8): 698-702.
Gong Enxiang, Xia Tian, Yang Yan, Cai Wanfeng, Hu Haipeng. Thermal-structural coupled analysis of gap between rotary valve′s body and rotor. Journal of Drainage and Irrigation Machinery Engin, 2014, 32(8): 698-702.
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