tank & drum
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These two terms are often seen in English materials; both mean jar. Within the same process, the tank and drum containers for the same material should be different; I believe the former is a storage tank while the latter is an intermediate tank. It’s just my own understanding, and I’ve never discussed it with anyone else. We welcome everyone to share, based on their work experience, what terms were used to translate them all as jars.
tank: storage tank; drum: barrel.
A tank is a container in various forms such as jars, boxes, tanks, barrels, or even pools; a drum is a barrel-shaped or cylindrical container
A tank generally refers to a relatively large storage vessel； A drum generally refers to a relatively thick, cylindrical container with a small volume. Among foreigners, \"drum\" often refers to a barrel used for holding raw materials or liquid products. Here, in the boiler industry, the term \"drum\" is used quite frequently; it refers to one of the most important pressure-bearing components of a boiler, and can be translated as \"steam drum\".
A tank generally refers to a storage vessel of large volume. A drum or barrel is used to hold many chemicals here; sometimes it also denotes a barrel-shaped container
My understanding is that a \"tank\" refers to horizontal tanks in devices outside large storage tanks, while a \"drum\" refers to vertical tanks, such as separators and steam drums, etc.
Chinese characters belong to pictographic scripts, while the scripts of the English-speaking languages are different from Chinese characters and are more or less symbolic scripts. A drum is a barrel-shaped object; in Chinese, it is most commonly referred to as the \"drum\" in musical instruments. Therefore, any object with such a shape is called a drum – and of course, small vertical tanks used in chemical plants also fall under this category. A tank is a container-shaped device; as we know, there is a weapon in the category of weapons called a tank, and its original form was simply a large box within which people could take cover or from which they could fire weapons. Therefore, in chemical plants, any large, box-shaped tanks are naturally referred to as tanks. As for the functions of these tanks and drums, whether they are used to hold products, raw materials, or intermediate substances, it has little to do with their original purpose. And these are usually standard-named containers, so they can all be called vessels as well. This post was last edited by weiqj on 2007-12-8 10:14]
Tanks are relatively large storage vessels, such as intermediate product tanks and final product tanks. Drums are relatively small storage tanks, such as chemical barrels, buffer tanks, flash tanks, air receivers, etc.
Everyone has discussed the differences in size; I think there is another aspect related to operating pressure – tanks are usually stored at atmospheric pressure or slightly positive pressure, with vertical tanks featuring a flat bottom and conical or arched roofs being the most common； A Drum is an elliptical-headed container that is operated under pressure.
TANK generally refers to storage tanks and reservoirs used for storage, temporary holding, collection, and similar purposes. A DRUM is a container used to achieve certain process purposes, such as liquid separation and buffering. This is just my own opinion; I haven’t looked for any further evidence. It is recommended that the original poster take a look at the PFDs produced by foreign design firms; in those P&IDs, terms such as TANK and Drum are used. Compare it by yourself.
A tank is a general term; it can be any shape – square, round, oval. A drum can only have a circular cross-section
You can think of a Tank as a relatively large storage tank, and a Drum as a relatively small one, right?