Is a container with semi-tube heating considered a pressure vessel?
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Containers heated by coiled tubes are non-pressure vessels; containers heated by jackets are pressure vessels. Are containers heated by semi-coiled tubes considered pressure vessels?
A half-tube is similar to a jacket and can be considered a pressure vessel!
Regardless of the heating method or whether the equipment is a pressure vessel, it should be determined based on the conditions of the equipment. If the inner cylinder of the equipment is a sealed container holding pressurized media, it is considered a pressure vessel. To determine whether a device is subject to regulatory oversight, it must be assessed based on the three essential conditions of the regulations.
Compare your equipment’s process parameters and geometric dimensions with the tolerance specifications; if all three meet the requirements, it is a pressure vessel that falls under the tolerance criteria and requires inspection. Otherwise, it’s not. Do not apply for inspection.
If the container does not meet the requirements for pressure vessels as specified in the regulations, it is necessary to check whether the semi-tube meets those requirements; if it does, then it is classified in that category, otherwise it is not.
First of all, the original poster has got the definition of pressure vessels wrong; it depends on design parameters, not on whether there are semi-tubes or not