Questions about pressure vessels?

Really? I’ve never encountered that. Please give an example, OP! Last edited by wuqitao0000 on 2009-4-11 08:33]

Is it still a pressure vessel? First, understand the concept of a pressure vessel

Broken container? I don’t understand...... What does it mean? Open position?

According to the regulations, among the three necessary conditions for a pressure vessel, the first one is that the maximum operating pressure must be greater than or equal to 0.1 Mpa (excluding static pressure); therefore, an open-container does not meet this condition, so it shouldn’t be considered a pressure vessel :o

The pump in our unit is equipped with a circulating seal oil tank with an inner diameter of 1200 mm and a height of 3000 mm; there is an opening of DN40 at its top that connects to the atmosphere!

Just like in the atmosphere, then there would be no pressure. It’s not a pressure vessel, right?

First, this container is designed and managed as a pressure vessel； Second, this system features liquid level proximity control and pressure control!

If the top is open to the atmosphere, it is no longer a pressure vessel; it is a vessel at atmospheric pressure.

Level control isn’t an issue, as containers all have level control. As for pressure control, it should be provided at the outlet of the oil sealing pump; how can it be controlled if the container is open? Generally, at the outlet of the seal oil pump, there is backflow pressure into the tank; this pressure is used to control the flow of seal oil to various pump users.

Why are some pressure vessels open-bottom vessels? I don’t understand...... ---------------------------------------------------------------------------------------------------------------------------- The inner cylinder of the equipment has a diameter of Φ1600, with a bottom seal and an upper opening. The outer jacket has a diameter of Φ1700; equipment in which steam is used for heating to temperatures above 100 degrees is considered to be a pressure vessel. I’m not sure if everyone understands this. This post was last edited by *xohuang on 2009-4-12 20:32.]

The regulations for determining whether a vessel is considered a pressure vessel can be found in Article 2 of the Vessel Regulations. A vessel is classified as a pressure vessel if: first, its maximum operating pressure (Pw) (Note 1) is greater than or equal to 0.1 Mpa (excluding hydrostatic pressure; the same applies hereafter); second, its inner diameter (for non-circular cross-sections, this refers to the largest dimension) is greater than or equal to 0.15 m, and its volume (V) (Note 2) is greater than or equal to 0.025 m3; third, the medium contained within it is a gas, liquefied gas, or the maximum operating temperature is greater than or equal to the standard boiling point of the liquid... (Note 3). According to the Vessel Regulations, vessels without openings should have very low pressures; if they are to be considered pressure vessels, they must have vents installed at both the top and bottom ends

The concept of a pressure vessel (in a broad sense) is: a sealed container that holds pressurized media

What is referred to on the 14th floor should be pressure vessels; they are classified into different chambers, and jackets are considered pressure vessels according to relevant regulations.

An open structure is connected to the atmosphere, with no external pressure applied, and should therefore be considered a vessel at atmospheric pressure.