Heavy drilling tools and refinery equipment
Refinery equipment
A shell-and-tube exchanger transfers heat between two streams. On a crude unit it is how the feed is warmed before the furnace.
In a refinery crude unit, hot product streams give up heat to the incoming crude in a train of exchangers. The crude then needs less furnace fuel to reach distillation temperature. A shell-and-tube exchanger does that by putting one fluid through the tubes and the other through the shell. The same machine is used elsewhere in a plant wherever two streams should exchange heat and a plate exchanger is not the right choice.
The construction code, when it is specified, is usually ASME Section VIII, and the mechanical design is usually described in TEMA class. The order needs the duty: both flow rates, both temperatures in and out, the allowable pressure drop, the fouling, and the materials. We do not publish a surface area for "an exchanger" as if one size fitted a crude unit.
The photograph is a shell-and-tube exchanger in a plant, with the channel cover and the piping on the shell.
| Duty | Transfer heat between two process streams |
|---|---|
| On a crude unit | Preheat crude with hotter product streams |
| Named on the order | Flows, temperatures, pressures, materials, TEMA type |
| Usual codes | ASME Section VIII and TEMA, when specified |
| Evidence | Datasheet for the duty, not a generic surface area |
A datasheet will be attached when measured results are on file.
Request a quoteWhat it is used for
One stream flows through the tubes and the other through the shell, and heat moves between them. On a crude unit this is how the feed is heated before the furnace. The exchanger is sized from the duty. There is no single surface area that suits every crude.
The order
We quote the piece you name. A missing size or standard is a question, not a guess.
Flows, temperatures in and out, allowable pressure drop.
What each stream will do to the metal.
ASME and TEMA type, when you require them.
Supply
The specification written on the order.
Mill or material certificates when the maker provides them.
Identity marks checked against the packing list.
A performance figure is published only when a datasheet is attached.
Use the quote button. Include the duty, the quantity and where it has to be delivered. We reply on business days.
Write to info@edatm.com or telephone +44 7570 624325. Replies go out on business days, Monday to Friday, 08:30–18:00.
Direct line