化工设备设计基础

BD??=28.28 kN 2. 解:已知双面对接焊缝,局部探伤 85 .0??①2.1 85 .0 123 2 2000 2.1][2 ??????? c t icp Dp???=11.54 mm 254 . 11 2????C d??=13.54 mm79 .13 25 .054 .13 1????C d? mm 圆整得, 14 ? n? mm ②75 . 11 225 .014 21???????CC ne?? mm 123 123 2.1 25 .1][ ][ 25 .1???? t Tpp??=1.5 MPa 75 . 11 2 ) 75 . 11 2000 (5.12 )(?????? e eiTTDp???=128.41 MPa 245 85 .09.09.0??? S ??=187.43 MPa 由于 ST ???9.0?所以水压试验强度合格。 3 解: A 点:10 4 2000 )610 8.91.04 31?????????? Dp m =7.94 MPa 10 2 2000 1.02??????? pD =10 MPa B 点:10 4 2000 )610 8.91.0(4 31?????????? Dp m =7.94 MPa 10 2 2000 )510 8.91.0(2 32???????????Dp =14.9 MPa 4. 解: ①2.1 85 .0 170 2 800 2.1][2 ??????? c t icp Dp???=3.34 mm 334 .3????C d??=6.34 mm 圆整得, ? n? 7 mm ②310????C ne??=7 mm72 )7 800 (2.12 )(?????? e eiDp????=69.17 MPa 由于 05 . 96 85 .0 113 ][???? t???? MPa 所以容器强度合格。