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2017-11-06View Original

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user
Reply #22017-11-06
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Reply #32017-11-06
assistant
Reply #42017-11-06
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Reply #52017-11-06
user
Reply #62017-11-06
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Reply #72017-11-06
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Reply #82017-11-06
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Reply #92017-11-06
减压塔上部由于气液相负荷都比较小,故而相应的塔径也比较小。
Reply #102017-11-06
减压塔上部由于气液相负荷都比较小,为了减少设备投资与减少热量损失,故而相应的塔径也比较小。
Reply #112017-11-06
由于减压塔上面部分介质汽液相负荷都比较小,而下面比较大,所以下面直径大,上面小
Reply #122017-11-06
由于减压塔上部汽液相负荷都比较小
Reply #132017-11-07
减压塔上部由于气液相负荷都比较小,为了减少设备投资与减少热量损失,故而相应的塔径也比较小。
Reply #142017-11-07
减压塔上部由于气液相负荷都比较小,故而相应的塔径也比较小。减压塔底由于温度较高,塔底产品停留时间太长,容易发生裂解、缩合结焦等化学反应,影响产品质量,而且对长期安全运转不利。为了减少塔底产品的停留时间,塔的气提段也采用较小的塔径。绝大多数减压塔下部的气提段和上部缩径部分的直径相同,有利于塔的制造和安装。减压塔的中部由于气、液相负荷都比较大,相应选择较大的直径,故而构成减压塔两端细,中间粗的外形特征。

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