| 5 | 1/1 | 返回列表 |
| 查看: 1178 | 回復(fù): 5 | ||
| 當(dāng)前只顯示滿足指定條件的回帖,點(diǎn)擊這里查看本話題的所有回帖 | ||
我聽(tīng)五月天木蟲(chóng) (正式寫(xiě)手)
|
[求助]
一題10金,答案解釋一下為什么。盡量英文回答謝謝 已有2人參與
|
|
|
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. [ 發(fā)自手機(jī)版 http://www.gaoyang168.com/3g ] |

木蟲(chóng) (正式寫(xiě)手)

木蟲(chóng)之王 (文壇精英)
木蟲(chóng) (正式寫(xiě)手)
|
自己翻譯一下。。。 1、石油工業(yè)所用的儲(chǔ)存罐蓋子有幾種?分別針對(duì)哪些產(chǎn)品? 2、為什么大型化工廠里氣體是存放在球體中,而非常規(guī)的圓柱罐子? 3、為什么化工廠里所有的產(chǎn)品存儲(chǔ)罐都有溫度指示? 4、石油工廠存在哪些危害和安全風(fēng)險(xiǎn)? 5、你熟悉哪種工藝風(fēng)險(xiǎn)分析方法?在什么情況下適用? 6、蒸餾塔中主要控制的工藝參數(shù)有哪些?詳細(xì)闡述 7、火焰加熱器安全操作需要控制哪些參數(shù)?詳細(xì)闡述 |

木蟲(chóng) (正式寫(xiě)手)
|
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. |

| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 求調(diào)劑,一志愿 南京航空航天大學(xué) ,080500材料科學(xué)與工程學(xué)碩,總分289分 +9 | @taotao 2026-03-29 | 9/450 |
|
|---|---|---|---|---|
|
[考研] 一志愿華東師范大學(xué)有機(jī)化學(xué)專(zhuān)業(yè),初試351分,復(fù)試被刷求調(diào)劑! +7 | 真名有冰 2026-03-29 | 8/400 |
|
|
[考研] 085600 295分求調(diào)劑 +7 | W55j 2026-03-30 | 9/450 |
|
|
[考研] 生物學(xué)學(xué)碩,一志愿湖南大學(xué),初試成績(jī)338 +7 | YYYYYNNNNN 2026-03-26 | 9/450 |
|
|
[考研] 085600,專(zhuān)業(yè)課化工原理,320分求調(diào)劑 +5 | 大饞小子 2026-03-29 | 5/250 |
|
|
[考研] 297求調(diào)劑 +17 | 田洪有 2026-03-26 | 18/900 |
|
|
[考研] 材料專(zhuān)碩 085600求調(diào)劑 +7 | BBQ233 2026-03-30 | 7/350 |
|
|
[考研] 求調(diào)劑 +7 | 研研,接電話 2026-03-24 | 8/400 |
|
|
[考研] 295求調(diào)劑 +5 | wei-5 2026-03-26 | 5/250 |
|
|
[考研] 一志愿南航 335分 | 0856 | GPA 4.07 | 有科研經(jīng)歷 +8 | cccchenso 2026-03-29 | 8/400 |
|
|
[考研] 【求調(diào)劑】085601材料工程專(zhuān)碩 | 總分272 | +7 | 腳滑的守法公民 2026-03-27 | 7/350 |
|
|
[考研] 311(085601)求調(diào)劑 +4 | liziyeyeye 2026-03-28 | 4/200 |
|
|
[考研] 322求調(diào)劑 +5 | 舊吢 2026-03-24 | 5/250 |
|
|
[考研] 藥學(xué)105500求調(diào)劑 +3 | Ssun。。 2026-03-28 | 3/150 |
|
|
[考研] 308求調(diào)劑 +7 | 墨墨漠 2026-03-27 | 7/350 |
|
|
[考研] 285求調(diào)劑 +4 | AZMK 2026-03-27 | 7/350 |
|
|
[考研] 316求調(diào)劑 +5 | Pigcasso 2026-03-24 | 5/250 |
|
|
[考研] 081200-11408-276學(xué)碩求調(diào)劑 +4 | 崔wj 2026-03-26 | 4/200 |
|
|
[考研] 321求調(diào)劑 +6 | wasdssaa 2026-03-26 | 6/300 |
|
|
[考研] 打過(guò)很多競(jìng)賽,085406控制工程300分,求調(diào)劑 +3 | askeladz 2026-03-26 | 3/150 |
|