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```略助理

2017-12-10View Original

Thread Content

```略助理|
Reply #22017-12-10
```略助理|
Reply #32017-12-10
```略助理|
Reply #42017-12-10
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Reply #52017-12-10
```略
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略助理|
Reply #72017-12-10
```略
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略助理|
Reply #92017-12-11
```略
Reply #102017-12-11
略助理|
Reply #112017-12-11
```5助理
Reply #122017-12-12
```5助理
Reply #132017-12-12
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Reply #142017-12-14
好像没有做降温处理。不过版主有没有注意到“优质主题”那四个大字把内容都盖住了。。。?
Reply #152017-12-23
200°的温度不算高啊,看看材料的许用应力,和你另外一根管线的温度下的需用应力差的多吗?
Reply #162017-12-24
温度不算高,但由于火炬管线口径大,考虑应力补偿的话也是一大投资。
Reply #172017-12-26
算的比较细了,确实会对外管廊增加一定量的投资,如果不是很远的话,就不要考虑这块了,毕竟一旦你分开管线了,那么你火炬的数量增加了,罐子也要增加,塔架的整体投资也要增加,这部分的钱比你外管的少不了多少
Reply #182017-12-26
个人看法:火炬管分介质设置,煤化工中一般设有主火炬、酸性气火炬,氨火炬等。气化、变换等都是进主火炬,因事故泄放量大,且火炬管压力低,口径一般较大,1m左右,接受介质冷热不同,设置自然补偿困难,现有专业厂家的膨胀节可解决热应力问题,不考虑事故排放气的冷却。原因是1、事故排放机会少,冷却系统使用极低,不经济;2、系统增加了火炬管的主力降,低压排放就克服不了系统阻力而无法进入火炬管,在设置也不经济。

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