3000m3液化气球罐的优化设计—（毕业设计）

安徽理工大学毕业设计

2?R2?3.14?9000??2827.4mm N20?18弦长B2?2Rsin()?2?9000?sin()?2815.8mm

22弦长： ??弧长B2D?2R1?cos2(??弧长D

?0?7518)cos2()=2?9000?1?cos2()cos2()=11183.1mm 2222D3.14?9000?11183.1?)?arcsin???12066.8mm 2R90?18000??R90arcsin(图2-4 赤道板

极板（见图2.5）尺寸计算

?=弧长B1?R90arcsin(B1)?8652.4mm 2R2Rsin(弦长B1???弧长D0?12H??2)?8323.0mm

?R90arcsin(D0)?12829.5mm 2R弦长D0?2B1?11770.5mm

??弧长B2?R(?1?2?2)180?9896.0mm

弦长B2?2Rsin(?12对角线弦长与弧长的最大间距：

??2)?9405.0mm

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安徽理工大学毕业设计

H?1?sin2(

图2.5极板

?12??2)?1.13mm

（1）极中板（见图2.6）尺寸计算

?=?R?1?3298.7mm 弧长B2180?弦长B2?2Rsin(1)?3280.24mm

2???R(?1?2?2)?9896.0mm 弧长L2180?弦长L2?2Rsin(1??2)?9405.0mm

22Rcos(弦长L1???弧长L1?12)sin(A?12??2)?9289.3mm

?R90arcsin(L1)?9760.7mm 2R??????2Rsin?1?cos?1??2??2??2??2809.5mm

弦长B1?A??弧长B1?R90arcsin(B1)?2821.0mm 2R对角线弦长与弧长的最大间距：A?1?sin2(弦长D?L1?B1?9708.2mm

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22?12)sin2(?12??2)?0.9955mm

安徽理工大学毕业设计

??弧长D?R90arcsin(D)?10253.9mm 2R

图2-6极中板

（2）极侧板（见图2.7）尺寸计算

??????2Rcos?1?sin?1??2??2??2??9289.3mm

弦长L1?A??弧长L1?R?L?arcsin?1??9760.1mm 90?2R????2Rsin?1??2??2??8323.1mm

弦长L2?H?L?arcsin?2??8652.5mm 90?2R????R?2?3298.7mm 弧长B2180??弧长L2?R???弦长B2?2Rsin?2??3280.2mm

?2???弧长B1?R180?1?2915.4mm

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安徽理工大学毕业设计

???弦长B1?2Rsin?1??2902.7mm

?2?弦长D?B1?L1L2?9263.7mm

22?D??R?弧长D?arcsin???9730.8mm

902R??式中，A、H同前；

?1?arcsin??L2?K?arcsin()?18.56o ?2R?2R???????2Rsin?1?cos?1??2??2??2??2809.5mm

K?A

图2-7极侧板

极边板（见图2.8）尺寸计算

???Rcos??0??11215.8mm L1??2?2????L1?2Rcos?0??10097.7mm

?2?11