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["Beimt es sich um die Frage der Entwurfspreßspannung für das Vierstoff-Vier-Pressungsrohr.",

2019-06-03View Original

Thread Content

"Die geww校正为碳四压力管道的设计压力通常选择多少,为什么有关碳四的相关管线的压力等级一般不小于PN5的说法会存在?"
Reply #22019-06-03
"Carbon3 ist ein gefährliches Chemikier, dieeig ist易燃、易爆,在定定定一定压力及温度下为液态,常温下为气态。常温下一般碳3的压力在0.11校正为0.1-至-..Mpa之间。如果不纯净,含有碳2或以上组分,则压力可能更高。因此,即便0.6Mpa的压力能够满足碳3的输送,为了安全和保险期间一般都放大余量,提高管线的承压等级"
Reply #32019-06-03
"Das hängt hauptsächlich davon ab,你的工作压力是多少。"
Reply #42019-06-03
"Der alte Petrochemie-Norm规范为标准(好像是S33599)上有这个要求,新规范取消了,很多人还是仍然按照这个执行 还是考虑液化烃气化的问题"
Reply #52019-06-04
"Ich habe diesen Standard gefunden:HGT 235857,确实比较老,里面提到设计值为1.57MPa,比较符合"
Reply #62019-10-19
"Hallo,这个所谓的碳到底是什么?"

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