较大直径加筋圆形平盖的设计计算  

Design and Calculation of a Larger Diameter Reinforced Circular Flat Cover

作　　者：程彪 CHENG Biao

机构地区：[1]湖南百利工程科技股份有限公司,湖南岳阳414000

出　　处：《化工设计通讯》2024年第6期128-130,134,共4页Chemical Engineering Design Communications

摘　　要：平盖因结构简单、制造方便,因此广泛应用于化工设备中的常压、低压容器的端盖或底板。但平盖较椭圆等凸形封头存在同等压力和直径条件下计算壁厚要大得多的缺点,为减少平盖厚度,工程上常采用在平盖上设置加强筋的方法。GB 150.3—2011《压力容器第3部分:设计》提供了一种加筋圆形平盖的计算方法,但对于较大直径和承受一定压力的圆形平盖其盖板计算厚度依然过厚。本文提供了一种较大直径圆形平盖的加筋方案和计算方法,以供工程设计时参考。Flat covers are widely used as end caps or bottom plates for atmospheric and low-pressure vessels in chemical equipment due to their simple structure and convenient manufacturing.However,the fl at cover has the disadvantage of having a much larger calculated wall thickness under the same pressure and diameter conditions compared to convex heads such as ellipses.In order to reduce the thickness of the fl at cover,the method of setting reinforcement ribs on the fl at cover is often used in engineering.GB 150.3-2011"Pressure Vessels Part 3:Design"provides a calculation method for reinforced circular flat covers.However,for circular flat covers with larger diameters and subjected to certain pressure,the calculated thickness of the cover plate is still too thick.This article provides a reinforcement scheme and calculation method for larger diameter circular flat covers for reference in engineering design.

关 键 词：平盖 加强筋 计算 

分 类 号：TG481[金属学及工艺—焊接]