化工设计贮罐设计说明书

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1、化工设备设计乙烯贮罐设计说明书目录前言································································2第1章设计参数的选择1.1设计要求与数据1.1.1设计要求···············································21.1.2设计数据···············································21.1.3贮罐容积·······································

2、·······21.2设计温度····················································31.3设计压力····················································31.4主体设备和零部件材料选择····································3第2章设备的结构2.1罐体壁厚设计···············································32.29化工设备设计乙烯贮罐设计说明书封头

3、壁厚设计···············································42.3鞍座·······················································42.4人孔·······················································52.5人孔补强确定···············································62.6法兰的选用···························

4、······················62.7接口管·····················································62.8主体设备尺寸和零部件尺寸····································72.9设备总装配图···············································79化工设备设计乙烯贮罐设计说明书前言卧式贮罐比立式贮罐易运输、设计合理、工艺先进、自动控制，符合GMP标准要求，古采用卧式贮罐。第1章设计参数的选择

5、1.1设计要求与数据1.1.1设计要求（1）主体设备和零部件材料选择；（2）主体设备尺寸和零部件尺寸计算及选择规格；（3）设备壁厚以及封头壁厚的计算和强度校核；（4）各种接管以及零部件的设计选型；（5）设备支座的的设计选型；（6）法兰的设计选型；（7）设备开孔及开孔补强计算；（8）设计图纸要求1号图纸一张，包括设备总装配图，至少画三个重要构件的局部图；技术特性表，接管表和总图材料明细表。要求比例适当，字体规范，图纸整洁。1.1.2设计数据表1-1设计数据序号项目数值单位备注1设备名称乙烯贮罐2公称直径2200㎜3贮罐长度400

6、0㎜4最大工作压力2.5MPa5贮存介质乙烯6工作地点宜宾7其他要求100%无损检测1.1.3贮罐容积9化工设备设计乙烯贮罐设计说明书贮罐的容积=封头的容积+筒体的容积由钢制筒体的容积、面积及质量表，可查得公称直径为2200㎜的筒体，1米高的容积为3.801，可得筒体的容积为：3.801×4=15.204；由JB/T4337—95可查得公称直径为2200㎜，直边高度为50㎜的椭圆形封头的容积为1.58；可得贮罐的容积为：15.204+1.58×2=18.3641.2设计温度由于在宜宾最高温度为42°C左右，因此设计温度为42°

7、C。1.3设计压力设计压力取最大压力的1.1倍，即2.5*1.1=2.75MPa1.4主体设备和零部件材料选择（1）筒体和封头的材料选择乙烯腐蚀性很小，贮罐可用普通低合金钢；大型化工容器采用普通低合金钢16MnR,制造，质量比用碳钢减轻1/3；而且根据GB150-1998表4-1，选用筒体和封头材料为低合金钢16MnR（钢材标准为GB6654）。（2）鞍座的材料选择根据JB/T4731,鞍座选用材料为Q235-A。（3）地脚螺栓的材料选择地脚螺栓选用符合GB/T700规定的Q235，Q235的许用应力。（4）零部件的材料选择优

8、质低碳钢的强度较低，但塑性好，焊接性能好。在化工设备制造中常用作热交换器列管、设备接管、法兰的垫片包皮。优质中碳钢的强度较高、韧性较好，但焊接性能较差，不适宜做化工设备的壳体，但可作为换热设备管板，强度要求较高的螺栓、螺母等；所以零部件的材料用优质低碳钢。第2章设备的结构2.