多层包扎层板参数对高压储罐结构强度的影响  

Influence of Multilayer Wrapped Laminate Parameters on the Structural Strength of High-pressure Tanks

作　　者：陈钦举 董金善[1] 沈航宇 CHEN Qin-ju;DONG Jin-shan;SHEN Hang-yu(School of Mechanical and Power Engineering,Nanjing Tech University,Nanjing 211816,China)

机构地区：[1]南京工业大学机械与动力工程学院,江苏南京211816

出　　处：《石油化工设备》2025年第2期58-64,共7页Petro-Chemical Equipment

摘　　要：随着我国工业化水平的提升,压力容器逐渐向大型化发展,同时,高压容器由于自身特性在许多领域应用广泛,成为不可或缺的主要工业装备。采用多层包扎结构的高压容器相比单层厚壁容器加工难度低,生产成本低,有较好的韧性,是高压容器常见的结构型式。以DN1 600 mm的高压粗氦气储罐为研究对象,利用ANSYS中参数优化模块,从应力强度方面探究多层包扎结构的应力水平与层板数量和层板厚度的关系。在文中研究条件下,单纯加厚或减薄搭接在球形封头上的层板厚度,不会降低结构的应力水平,相较于不同厚度层板包扎,等厚层板搭接强度最高;当不同厚度层板包扎且层板总厚度不变时,随层板数量减少,球形封头与层板连接强度下降。结果表明多层包扎结构选用层板数量多,厚度薄的方案较好,通过计算与分析,确定多层包扎高压储罐,层板厚度为10 mm、层数为11层时,结构强度最好,为层板包扎最优方案。此外,在总厚度不变的情况下,当层板数量变化时,对整体结构的极限载荷值没有影响。With the progress ofindustrialization in China,pressure vessels have gradually developed into large-scale structures,and high-pressure vessels have become widely used in various industries and have become indispensable equipment.Compared with single-layer,thick-walled vessels,high-pressure vessels with multi-layer winding structures offer advantages such as reduced processing complexity,lower production costs,and improved toughness,making them a preferred choice for high-pressure applications.This dissertation focused on a DN1600 mm high-pressure helium vessel as the research object.Using the parameter optimization module in ANSYS,the study investigated the relationship between the stress levels ofmulti-layer winding structures and factors such as the number oflayers,plate thickness,and thickness of overlapped plates.The results show that simply increasing the thickness of the overlapped plates on the spherical head does not significantly reduce the stress levels within the structure.In addition,the strength of the overlapped plates is highest when they are of uniform thickness.When winding with varying plate thicknesses while keeping the overall thickness constant,the strength of the joint between the ball head and the plates decreases as the number of layers is reduced.Based on this analysis,a multi-layer wound high-pressure vessel with a plate thickness of 10 mm and 11 layers provides the optimum structural strength,making it the most favorable design solution.Furthermore,varying the number of layers while keeping the overall thickness constant and using different plate thicknesses does not affect the ultimate strength ofthe overall structure.

关 键 词：容器 高压 多层包扎 结构强度 数值模拟 

分 类 号：TQ050.2[化学工程]