船用蝶阀液压控制系统的数值仿真

液控蝶阀以其启闭扭矩大、压力损失小和适合用于大中口径管道等特点,在船舶领域得到了广泛应用。基于船舶中某一常用规格的中线对称阀瓣的液控蝶阀,建立该液控蝶阀在实际工况下启闭控制液压系统的数学模型,并进行数值仿真和试验研究。仿真及试验结果表明:液控蝶阀启闭时的转动角速度及其误差受蓄能器排油量、管路压力损失、液压介质的温度以及液控蝶阀的负载影响较大。这一仿真分析及试验结果可为蝶阀液压控制系统中蓄能器总容量和管路通径的选择、液控蝶阀结构型式和规格的确定及其所输送流体运动参数的设计提供依据。

Numerical Simulation of Hydraulic Control System for Marine Butterfly Valve

Hydraulic control butterfly valve is widely used in marine area due to the following features: high torque,low pressure loss and be suitable for medium and large diameter pipeline,etc.In this paper,hydraulic control butterfly valve adopted common centerline symmetry flap,and mathematical model of the switch control hydraulic system for hydraulic control butterfly valve was established.Numerical simulation and experiment results show that: row oil of the accumulator,pipeline pressure loss,temperature of hydraulic medium and the load have great impact on the rotational angular velocity and its error when the hydraulic control valve is opening and closing.The results can be applied to selection of the total capacity of accumulator and pipeline path,and to determination of structure type and specifications for hydraulic control butterfly valve and design of the motion parameters for the fluid transported by the system.