管道壁厚等级与压力等级计算

1、510管道壁厚等级与压力等级1)内压金属直管的壁厚根据SH3059-2001石油化工管道设计器材选用通则确定:当S06或P/ot0.385时，宜管壁厚应根据断裂理论、疲劳、热应力及材料特性等因素综合考虑确定。2）对于外压直管的壁厚应根据GB150-1998钢制压力容器规定的方法确定。0500000000-505200500250505050H122345681112233445公称直径管子外径设计儿力许阳应力t最终堆现箜黑系列2227344248607689114140159219273323.9355.6406.4457508000073337303000000333336663636333

2、333111111111111111111424452.4,5,4.4.4.4441116366.7.364766667.7.4*O.44.4.444.444.44444444OOSO.SSSO.SSSSS8O.S6炸健系轨修正系数Y0.0843558280.1035276070.1303680981.0138805075.1268357811.1597004111.4689538542.01054216912.176234982.7059676252.4164133744.9472891576.5902232957.8189499098.5841882929.81050090512.7173

3、58614.136582430.50.50.50.50.50.50.5.56657895O.O.SO.SSO.O.0.50.50.51.52.08435582841.52.10352760741.5253.013880507405.62683578141.53.1597004113.51.53.4689538544.51.54.0105421694.51.514.2762349851.54.805967625624.91641337471.5758.890223295101.510.2189499181.510.584188298.81.51

4、1.81050091101.514.7173586111.516.1365824312.5So壁原负值差腐蚀裕诚&5505597.4153.310.413.236272880.5215.7362728812.56006107.4153.310.414.443875590.5216.9438755914.26506607.4153.310.415.627799820.5218.1277998214.27007117.4153.310.416.835402530.5219.3354025316注：计算得的结果为计算壁厚，最终厚度为：S=So+C.C为腐蚀裕量+壁风负偏差+理纹深度。修正系数丫请见下

5、表：温度对计算管子壁厚公式的修正系数Y材料温度（C）482510538566593铁素体钢0.40.50.70.70.7奥氏体钢0.40.40.40.40.5本公式的适用范闱及其要求请参照SH3059-2001P21弯管弯头外弧最小壁以公称直径管子外径设计压力许用应力t焊缝系数修正系数弯曲半径腐蚀裕量壁以S。7007116.445010.442001.56,331236737弯管弯头内弧最小壁以公称直径管子外径设计压力许用应力t焊缝系数修正系数弯曲半径腐蚀裕量壁”Soi壁厚负偏差最终壁厚40486.413010.4601.53.0449607720.6253.85265841945060116

6、310.4751.51.7447980420.43752.2869859244.565766.413010.41001.53.8968695860.56254.693181761580896.413010.41201.54.2816168210.56255.1010138315.51001146.413010.41501.55.0953043780.6256.02602264171251406.413010.41901.55.8653188490.6256.8422379871501686.413010.42251.56.7635498660.757.91936285881501686.413

7、010.49001.55.7642621320.756.8601178672002502196.41302737.5173.310.43001.58.3060578120.8759.6794212811010.437529.4685757551.511.536690313直缝弯头旁管300323.9)4173.310.44501.56.2450308851.17.71973273810350355.6，7.5173.310.45251.511.000513470.512.1605442711400406.46.4173.310.46001.510.788444250.511.935750911

8、2.54504576.4173.310.46751.511.943520620.513.1601318614.25005086.4173.310.47501.513.110555320.514.39718864165005086.4173.310.430001.511.171230070.512.3415038714.25505596.4173.310.48251.514.277591710.515.63424721166006107.5173.310.49001.517.800578650.519.3686133717.56506606.4173.310.49751.516.58176430

9、.518.07667016207007117.5173.310.410501.520.49403720.522.22367943207117.5173.310.442001.517.322596430.518.8619522217.5注：弯管弯曲后的最小壁尸不应小于直管扣除壁厚负偏差后的值。dld2SeiSe2LIL2atPApAa是否介格666.6228.720.220.2117.785228370.90684029173.36.4855613410合格417283.9181888.4872872273.71702653173.36.4585532601合格6614072323125.427

10、269899.44847912173.36.4134220.45239.40格476374.4141482.8251169673.74008408259.46.4781602002合格303.9199.18849.9519769440.70380818259.46.4192139.55240.8合格479.6295.512.212.277.4594087261.26940509259.46.439372.61086.8合格281.256.4781602002281.256.481600.52023281.256.438786.6873格格格人“人”476374.4141482.82511696

11、73.74008408679241.1141498.4987309659.76119142301.9301.99952.8970698652.89706986:44444ooooOY4444.4P6.6.6.6.6.6.40.46.40.46.40.46.40.4155dLL(PatSodlSeiApAap666.60,66173.320.28974846666.620.28556134100.657601014170.51173.316.75511773417185855326010.51454665428.60.46259.413.0920959566123134220.45239.40.

12、56092746610.56173.323.48013437476147816020020.435440123303.90,47281.258.926389285479.612.2630721544.520.4813337141.5479.60.48281.2512.95431548476147816020020.4354401231.54760.44281.2513.9071457637812.26180315350.384769641.56790.6281.2514.449985136791481600.520230.6011942331.5298.90.39281.2510.311458

13、69298.910.53937310870.39295033dld2SeiSe2LIL2ApAa三通壁尸计算666.6228.720.220.21187185561.1053409.76公式系数：417283.9181888.57458553.1252601L1主管最大承载长度(mm)6614072323125.4125.4134220.355239.4L2支管最大承载长度(mm)476374.41414837478160.42002dl主管内径(mm)14414499373710512585d2支管内径(mm)479.6295.512.212.277.561.363072.0251544.5

14、2Sei主管有效厚度(mm)679241.1141498.56081600.4752023Se2支管有效厚度(mm)330.6330.610.510.5606047160.091149.75Ap通过主管支管中心线的纵向战面在最大承载范围内的承压面积(mm)301.9301.999535338786.6025873Aa通过主管支管中心线的纵向极面在最大承魏范围内的钢材承压面积(mm)00p三通的强度减弱系数dld2SeiSe2LIL2ApAaatP是否合格(pYC2So6231116.528.3372546315.6124951600.948566341.691018413025合格0.6014

15、855420.4111.12460893422288.915.515.582.3483454668.6891548957776.599322100.831255173.36.4不合格0.4949826210.41.517.409042416614072323125.427269899.44847912128948.22824643.142224173.36.4不介格0.5174164540.41.525.30129269476374.4141482.8251169673.7400840878070.121581995.912815259.46.4合格0.4346159220.41.515.12

16、536635303.9199.18849.9519769440.7038081826768.8895661.2462809259.46.4不合格0.4691844440.41.59.569099881479.6295.512.212.277.4594087261.2694050963057.770811543.651529259.46.4不合格0.4811716170.41.513.89341971345.6345.64.54.539.6919387339.6919387343577.37402336.9774486173.31令格0.2969415740.455055029.529.5格0.4324299040.465165129.529.5格0.4169534640.41.54.927056362130.748805130.748805147536.84276843.929493173.3