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夹套封板计算
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封板
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夹套
- 封板
- 夹套
| CALCULATION FOR JACKET CLOSURE | |||||||||
| (In accordance with ASME VIII Div 1 2010, Appendix 9-5(5) ) | |||||||||
| General condition | |||||||||
| Jacket Design Pressure | P = | 0.4 | Mpa |  |
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| Jacket Design Temperature | T = | 104 | ℃ | ||||||
| Thickness of inside shell |
ts=
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16.9 | mm | ||||||
| Thickness of jacket shell |
tj=
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7.2 | mm | ||||||
| Distance between shell and jacket | j= | 34 | mm | ||||||
| Outside radius of inner vessel | Rs= | 1002 | mm | ||||||
| Inside radius of jacket | Rj= | 1036 | mm | ||||||
| Material of jacket cover plate | S30408 | ||||||||
| Cover plate operating allowable stress |
S =
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114 | Mpa | ||||||
| Thickness of cover plate calculation | |||||||||
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j1=
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145.0906371 | mm |  |
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trc=
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15.45967283 | mm |  |
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| So the thickness of cover plate (tc) =14mm is ok | |||||||||
| NOTE 1. Thickness of cover plate should be not less than the trc | |||||||||
| 2.j must less than j1. | |||||||||
| 3.Y should be no less than the smaller of 1.5tc and 1.5ts | |||||||||
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So Y=(a+b)=22≥
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21 | mm | |||||||
| 4.In accordance with UW13.2（c） | |||||||||
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So a1≥2tj=
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12 | mm | |||||||
