sphere球罐讲义课件讲解

第24章球形储罐压力容器设计工程师培训教材

目录

•24.1 型式 (TYPE)

•24.2 球壳板 (SHELL PLATES)

•24.3 装量高度 (FILLING HEIGHT) •24.4 标准 (STANDARD)

•24.5 设计 (DESIGN)

•24.6 材料 (MATERIAL)

•24.7 零部件﹑附件(PARTS, ATTACHMENTS)

•24.8球壳板成形(FORMING OF SHELL PETALS)

•24.9组焊(ASSEMBLY WELDING) •24.10无损检测(NONDESTRUCTIVE EXAMINATION)

•24.11焊后整体热处理(POSTWELD HEAD TREATMENT FOR COMPLETED TANK AS A WHOLE) •24.12产品焊接试板(PRODUCT WELDED TEST COUPON)

•24.13压力试验和气密性试验(STATIC PRESSURE TEST AND PNEUMATIC TEST)

•24.14特种球罐(SPHERICAL TANK FOR SPECIAL PURPOSE)

24.1型式

(a)桔瓣式(b)足球瓣式(c)混合式

图24-1 球壳板结构型式

表24.1 1000m3桔瓣式与混合式球罐比较表

型式

球壳

分带数

支柱

根数

总块数各带分块数

焊缝

长度

(m)

桔瓣式58543+16+16+16+3352引进罐

混合式38287+14+7272

桔瓣式5

8

10

54

66

3+16+16+16+3

3+20+20+20+3

GB/T17261

混合式3

4

8

10

30

54

7+16+7

7+20+20+7

24.2球壳板

•球壳板设计要点﹕

•(1)球壳板的几何尺寸应尽可能大。•(2)选择合适的钢板规格,提高板材利用率。•(3)规格要少,互换性要好。

•(4)相邻带纵焊缝应相互错开。

•(5)焊缝布局应均匀,减少装配应力﹑拘束应力与残余应力。

•(6)必须考虑压机及起重能力。

图24-2 引进1000m3丙烯罐俯视图

名称块数

球壳板尺寸

长x宽(弧长)mm

原材料钢板尺寸

长x宽,mm

赤道板温带板极中板极侧板20

40

2

4

6047.6x2237.6

6047.6x2237.6

6155x2450 (20块)

6250x3515 (20块)

6085x3055 (2块)

5330x3065 (2块)

面积总和

(m2)

746810.83表24.2-1 1900m3乙烯罐下料表

公称容积内径各带板数各带球心角°(m 3

) (mm)L

M N 型式S1S2S3S4S5支柱数量焊缝长度(m)400915012––A 903030––6154.4500985012––A 903030––6166.26001050012––A 903030––6177.17001105012––A 903030––6186.48001155012––B 602424––8224.59001200012––B 602424––8233.310001245016––B 702222––8274.515001425016––B 702222––8314.220001565015––B 702220––10335.525001685018––B 802020––12402.93000179001818–C 10401818–12494.63500188502121–D 5022.51717–14513.64000197002424–D 50251616–16708.75000212502424–D 5027.51515–16775.56000

22550

24

24

24

E

40

30

20

14

14

16

892.5

表24.2-2 国外某公司液体球罐球壳板分割表

表24.2-2附图-球罐型式

球罐装量系数与装量高度关系:

装量系数K 系球缺体积V ´与壳体

积V 之比值:

令:装量系数K 相对应的装量高度

H 为:H=kD

i

k 为装量高度系数,则:K=3k 2-2k 3

例:1000m 3丙烯球罐,内径

Di=12300mm,装量系数K=0.9,

求装量高度?

解:查表24.3:K=0.9得 k=0.8042

则其装量高度为:

H=kDi=0.8042x12300=9891.66

mm

24.3 装量高度

3

234)

3('i

R H

Ri H V V K ππ-==H Di

表24.3 装量系数K与装量高度系数k的关系

K k K k K k K k K k 0.500.50000.600.56710.700.63680.800.71290.900.8042 0.510.50670.610.57390.710.64400.810.72110.910.8150 0.520.51330.620.58070.720.65130.820.72940.920.8263 0.530.52000.630.58760.730.65870.830.73800.930.8383 0.540.53670.640.59450.740.66610.840.74670.940.8510 0.550.53340.650.60140.750.67360.850.75560.950.8646 0.560.54010.660.60840.760.68130.860.76470.960.8796 0.570.54680.670.61540.770.68900.870.77410.970.8964 0.580.55350.680.62250.780.69680.880.78380.980.9160 0.590.56030.690.62960.790.70480.890.79380.990.9411