Does a short circuit between a pressure vessel and a safety valve fall under pressure pipelines?
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Does a short circuit between a pressure vessel and a safety valve fall under pressure pipelines? The length is 300 mm.
Yes, the short circuit between the pressure vessel and the safety valve falls under pressure pipelines. Length does not affect its definition. .
It does not belong to it; it is part of the pressure vessel itself. See Clause 1.6.1 of TSG 21-2016.
It depends on pressure, material properties, pipeline size, etc
Clause 1.6.1 states that pipelines welded to pressure vessels using flanges are considered part of the vessel, but it does not specify whether the connections on the flanges themselves are also considered pressure vessels.
It’s actually easy to tell: nozzles that are directly welded to the container belong to the container, while nozzles that are connected to the container indirectly (via flanges, threads, welding, etc.) belong to the piping
It’s impossible to determine based on the information you provided. 1. Medium: Unknown ； 2. Pressure: Since it is connected to a pressure vessel, 0.1 MPa is considered the appropriate value ； 3. Pipe diameter: unknown. This kind of question is similar to “Is that person a man or a woman?” ”.
You still don’t understand pressure vessels at all.
First, determine whether it belongs to a pressure vessel based on the definition of pressure vessels, and then determine whether it belongs to a pressure pipeline based on the definition of pressure pipelines.
According to the relevant regulations, pressure vessels include those that are welded to external pipes or devices – specifically, the groove surface of the first circumferential joint in a welded connection, the end face of the first threaded joint in a threaded connection, the first flange sealing surface in a flanged connection, and the first sealing surface in a connection using special fittings or pipe connectors； If the safety valve is located behind the short section, it does not belong to the pressure vessel.
This pipe is under the jurisdiction of the vessel, and its design, calculation, manufacturing, and inspection are carried out in accordance with the requirements for vessels.