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1.设计基本参数:
2. 罐壁分段及假设壁厚:
3. 罐壁计算:
4. 罐顶计算:
5.罐顶与罐壁的连接计算:
6. 风载荷及地震载荷计算
7. 地脚螺栓(锚栓)计算
储罐设计计算书 | | 1.设计基本参数: | | | | | | | | | 设计规范: | GB50341-2003《立式圆筒形钢制焊接油罐设计规范》 | | | | 设计压力: | P | 2000 | Pa | -500 | Pa | | | | | 设计温度: | T | 50 | °C | | | | | | | 设计风压: | ω0 | 540 | Pa | | | | | | | 设计雪压 | Px | 300 | Pa | | | | | | | 附加荷载: | Ph | 1200 | Pa | | | | | | | 地震烈度: | | 8 | 度 | 0.2g | Ⅱ类第一组 | | | | 罐壁内径: | D | 24 | m | | | | | | | 罐壁高度: | H1 | 13 | m | | | | | | | 充液高度: | H | 13 | m | | | | | | | 液体比重: | ρ | 1.5 | | | | | | | | 罐顶半径: | Rs | 24 | m | | | | | | | 焊缝系数: | Φ | 0.9 | | | | | | | | 腐蚀裕量: | C2 | 0 | mm | | | | | | | 钢板负偏差: | C1 | 0.8 | mm | | | | | | | | | | | | | | | | 2. 罐壁分段及假设壁厚: | | | | | | | | | 罐壁尺寸、材料及许用应力如下: | | | | | | 从下至上 分段号 | 高度(m) | 厚度(mm) | 材料 | 设计[σ]d(MPa) | σs(MPa) | σb(MPa) | 水压试验[σ]t(MPa) | 重量(kg) | | 1 | 2 | 24 | 00Cr17Ni14Mo2 | 110 | 165 | 455.6 | 110 | 28438.5 | | 2 | 2 | 22 | 00Cr17Ni14Mo2 | 110 | 165 | 455.6 | 110 | 26066.4 | | 3 | 2 | 20 | 00Cr17Ni14Mo2 | 110 | 165 | 455.6 | 110 | 23694.8 | | 4 | 2 | 16 | 00Cr17Ni14Mo2 | 110 | 165 | 455.6 | 110 | 18952.7 | | 5 | 2 | 14 | 00Cr17Ni14Mo2 | 110 | 165 | 455.6 | 110 | 16582.2 | | 6 | 1.5 | 10 | 00Cr17Ni14Mo2 | 110 | 165 | 455.6 | 110 | 8881.8 | | 7 | 1.5 | 8 | 00Cr17Ni14Mo2 | 110 | 165 | 455.6 | 110 | 7104.9 | | | | | | | | 总重: | mt | 129721.2 | | | | | | | | | | | 3. 罐壁计算: | | | | | | | | 1)设计厚度计算(储存介质): | | | | | | | | | | | | | | | | | 计算结果: | | | | | | | | | | 从下至上分段数 | 计算液位高度H(m) | 计算壁厚td(mm) | 名义厚度tn(mm) | | | | | | | 1 | 13 | 23.4 | 24 | | | | | | | 2 | 11.5 | 20.8 | 22 | | | | | | | 3 | 10 | 18.1 | 20 | | | | | | | 4 | 8 | 14.5 | 16 | | | | | | | 5 | 6 | 11.0 | 14 | | | | | | | 6 | 4 | 7.4 | 10 | | | | | | | 7 | 2 | 3.8 | 8 | | | | | | 2)水压试验厚度计算: | | | | | | | Pict | | | | | | | | 计算结果: | | | | | | | | | | 从下至上分段数 | 计算液位高度H(m) | 计算壁厚tt(mm) | | | | | | | | 1 | 13 | 15.09 | | | | | | | | 2 | 11.5 | 13.30 | | | | | | | | 3 | 10 | 11.52 | | | | | | | | 4 | 8 | 9.15 | | | | | | | | 5 | 6 | 6.77 | | | | | | | | 6 | 4 | 4.40 | | | | | | | | 7 | 2 | 2.02 | | | | | | | | | | | | | | | | | 4. 罐顶计算: | | | | | | | | 4.1光面球壳顶板的计算厚度: | (如果不加肋板拱顶所需厚度) | | | ths=0.42RsPower(Pw/2.2,0.5)+C2+C1 | 11.90 | mm | | | | | | 设计外载荷 | Pw=Ph+Px+Pa | 2.67 | KPa | 注:按保守计算加上雪压值。 | | 实际罐顶取用厚度为 | th= | 8 | mm | 本设计按加肋板结构 | | | 顶板及加强筋(含保温层)总质量 md= | 53863 | kg | | | | | | 罐顶固定载荷 | Pa | 1166.82 | N/m2 | | | | | 4.2顶板计算 | | | | | | 4.2.1 拱顶的许用外压 | | | | | | | 4.2.1 带肋拱顶的许用外压 | | | | | | | | | Pict | | | | 4245 | Pa | | 式中: | | | | | | | [Po]——带肋拱顶许用外压 | | | | | | | | Et——设计温度下材料的弹性模量 | | | | 199875 | MPa | | Rs——拱顶球面半径; | | | | 24000 | mm | | te——顶板有效厚度 | | | | 7.2 | mm | | tm——带肋顶板的折算厚度 | | | | | | | | | | | 12.76 | mm | | | | | | | | | | | | | | | | 3783.1 | mm | | h1——纬向肋宽度 | | | 50 | mm | | b1——纬向肋厚度 | | | 10 | mm | | L1——纬向肋在经向的间距 | | | 1500 | mm | | e1——纬向肋与顶板在经向的组合截面形心到顶板中面的距离 | | | | | | | | 2.77 | mm | | L1S——顶板有效参与筋板组合矩的宽度 | | | | | | L1S=1.1(2Rste)0.5= | | | 646.67 | mm | | | | | | | | | | | 1.05 | | | δ2m——经向肋与顶板的折算厚度 | | | | | | | | | 3783.1 | mm | | h2——经向肋宽度 | | | 50 | mm | | b2——经向肋厚度 | | | 10 | mm | | L2——经向肋在经向的间距 | | | 1500 | mm | | Pict e2——经向肋与顶板在经向的组合截面形心到顶板中面的距离
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| | | | | | | | 2.77 | mm | | L2S——顶板有效参与筋板组合矩的宽度 | | | | | | L2S=1.1(2Rste)0.5= | | | 646.67 | mm | | | | | | | | | | | 1.05 | | | | | | | | | | | | 4.2.2 带肋拱顶的稳定性验算 | | | | | | | | 拱顶载荷 P=Pw | 2667 | N/m2 | | | | | | | 拱顶许用外压 [P0]: | 4245 | N/m2 | | | | | | | ∵ [P0]>P,故满足稳定性要求,合格 | | | | | | | | | | | 5.罐顶与罐壁的连接计算: | | | 5.1. 几何参数计算(如图) | | | | 角钢规格: | ∠ | 140 | × | 140 | × | 10 | | | | 罐顶与角钢连接位置 | | B | | | 30 | mm | | | 罐外半径 | | | Rc | | | 12008 | mm | | | 罐壁连接有效宽度 | Wc=0.6(Rcte)0.5 | 176.36 | mm | | | 罐顶连接有效宽度 | Wh=Min[0.3(R2te) | 124.55 | mm | | | 罐顶与罐壁连接处,罐顶切线与水平面夹角 | θ=arcsin((Rc+B)/Rs)= | 30.10 | ° | | | 罐顶与罐壁连接处到罐中心线垂直距离 | R2=Rc/sinθ | 23940.19 | mm | | | | | | | | | 5.2. 罐顶与罐壁连接 | | 罐顶与罐壁连接处的有效截面积(按A.3.2) | | | | | | | | | | | | | | | 1805.77 | mm2 | | | | | | 注:此处的设计压力应为设计内压,不可等同于按液柱所确定的设计压力。 | | | | | 罐顶与罐壁连接处的有效截面积(按7.5.3) | | | A2=4.6DR2 | 2643.00 | mm2 | | | | | | 罐顶与罐壁连接处的实际截面积(按图7.1.5确定) | | | Aa= | 6277.50 | mm2 | | | | | | 实际截面积大于所需有效截面积,满足设计要求 | | | | | 注:如果Aa≥mtg/(1415tgθ)= | 1551.14 | mm2 | | | | | | 顶部 应设置通气装置 | | | | | | | 罐顶与罐壁连接处发生屈曲破坏压力(按设计压力P计算) | | | PQ=1.6P-0.047th= | 3.20 | KPa | | | | | | | 其中: | g= | 9.81 | m/s2 | | | | | | 满足连接要求 | | | | | | | | | | | | | | | 6. 风载荷及地震载荷计算 | | | | | | | |
GB50341储罐设计计算 油气储运网搜集.xls
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