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小木虫论坛-学术科研互动平台 » 化学化工区 » 石油化工 » 石油装备 » 一题10金，答案解释一下为什么。尽量英文回答谢谢
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我听五月天

木虫 (正式写手)

[求助] 一题10金，答案解释一下为什么。尽量英文回答谢谢已有2人参与

How many types of roofs for storage tanks are used in the petrochemical industry? What are the applications/types of products stored for each type?

Why, in large chemical factories, are gases stored in spheres rather than in regular cylindrical tanks?


Why do all product storage tanks in a chemical plant have a temperature indicator?        

What are the main hazards and safety risks in a petrochemical plant?

Which process risk analysis methods are you familiar with? When shall be applied?         


What are the main process parameters to control in a distillation column? Please develop your answer.

What are the main process parameters to control to maintain the safe operation of a fired heater? Please develop your answer.

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为爱而生
1楼2014-11-04 18:41:14
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8866haha

木虫 (正式写手)

【答案】应助回帖

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我听五月天: 金币+10, ★★★很有帮助 2014-11-05 08:13:52
Why, in large chemical factories, are gases stored in spheres rather than in regular cylindrical tanks?

answer:
This type of vessel is preferred for storage of high pressure fluids. A sphere is a very strong structure. The even distribution of stresses on the sphere's surfaces, both internally and externally, generally means that there are no weak points. Spheres however, are much more costly to manufacture than cylindrical vessels.

Storage Spheres need ancillary equipment similar to tank storage - e.g. Access manholes, Pressure / Vacuum vent that is set to prevent venting loss from boiling and breathing loss from daily temperature or barometric pressure changes, Access ladders, Earthing points, etc.

An advantage of spherical storage vessels is, that they have a smaller surface area per unit volume than any other shape of vessel. This means, that the quantity of heat transferred from warmer surroundings to the liquid in the sphere, will be less than that for cylindrical or rectangular storage vessels.
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just do it
5楼2014-11-05 02:13:21
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wlscj

木虫之王 (文坛精英)

【答案】应助回帖

感谢参与，应助指数 +1
It's really difficult for most of people........
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2楼2014-11-04 19:01:15
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我听五月天

木虫 (正式写手)
是石油公司HSE工程师的测评题目。。。。
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3楼2014-11-04 23:17:54
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我听五月天

木虫 (正式写手)
changle9139: 回帖置顶 2014-11-05 07:59:11
自己翻译一下。。。
1、石油工业所用的储存罐盖子有几种？分别针对哪些产品？
2、为什么大型化工厂里气体是存放在球体中，而非常规的圆柱罐子？
3、为什么化工厂里所有的产品存储罐都有温度指示？
4、石油工厂存在哪些危害和安全风险？
5、你熟悉哪种工艺风险分析方法？在什么情况下适用？
6、蒸馏塔中主要控制的工艺参数有哪些？详细阐述
7、火焰加热器安全操作需要控制哪些参数？详细阐述
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4楼2014-11-05 01:44:21
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