Do oil tanks count as pressure vessels?
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May I ask, are oil tanks considered pressure vessels? What is the definition of a pressure vessel? For a Class 1 oil depot, which containers can be considered pressure vessels? Thank you!
The general concept of a pressure vessel is: a closed container that holds pressurized media. Oil tanks aren’t considered pressure vessels, right?
Generally speaking, vertical tanks (including dome tanks, floating roof tanks, and internal floating roof tanks) are atmospheric pressure vessels； Horizontal tanks and spherical tanks are pressure vessels
Oil tanks should be considered pressure vessels； The definition of pressure vessels shall be in accordance with the definition provided in the appendix to the \"Regulations on the Safety Supervision of Special Equipment\": A pressure vessel is a closed device used to hold gases or liquids and subject to certain pressure. It includes fixed and mobile containers whose maximum operating pressure is 0.1 MPa (gauge pressure) or higher, and whose product of pressure and volume is 2.5 MPa·L or higher, for gases, liquefied gases, and liquids whose maximum operating temperature is equal to or higher than their standard boiling point ； Gas cylinders, liquefied gas cylinders, and cylinders for liquids with a standard boiling point of 60°C or lower, whose nominal working pressure at full charge is greater than or equal to 0.2 MPa (gauge pressure), and whose product of pressure and volume is greater than or equal to 1.0 MPa·L ； Oxygen chambers, etc.
1. The vault tanks and floating roof tanks in oil depots are used as storage tanks, not pressure vessels; for specific requirements, you can refer to the Storage and Transportation regulations. 2. Spherical tanks and some horizontal tanks are pressure vessels or atmospheric tanks
(1) The maximum operating pressure is greater than or equal to 0.1 Mpa (excluding hydrostatic pressure; the same applies hereafter); (2) The inner diameter (for non-circular cross-sections, this refers to their largest dimension) is greater than or equal to 0.15 m, and the volume is greater than or equal to 0.25 m3; (3) The medium contained is a gas, a liquefied gas, or a liquid whose maximum operating temperature is greater than or equal to its standard boiling point. Only when all three of these conditions are met can it be considered a pressure vessel. As for the oil tank you mentioned, some parameters are missing.
Oil tanks are considered pressure vessels, and many of them fall into Category 3; our factory has handled such projects before.
Large oil tanks are generally raw material tanks, operating at atmospheric pressure and do not qualify as pressure vessels.
For the specific definition of pressure vessels, refer to GB150. If it meets the requirements of GB150, it is considered a pressure vessel; however, it is subject to supervision and inspection in accordance with relevant regulations, depending on the specific circumstances
(1) The maximum operating pressure is greater than or equal to 0.1 Mpa (excluding hydrostatic pressure; the same applies hereafter); (2) The inner diameter (for non-circular cross-sections, this refers to their largest dimension) is greater than or equal to 0.15 m, and the volume is greater than or equal to 0.25 m3; (3) The medium contained is a gas, a liquefied gas, or a liquid whose maximum operating temperature is greater than or equal to its standard boiling point. Only vessels that meet all three of these conditions can be considered pressure vessels. Based on these criteria, oil tanks (with vaulted or floating roofs) do not satisfy conditions 1 and 3, so they are considered vessels under normal pressure
All high-pressure equipment is considered pressure vessels, but if it is subject to regulatory oversight, it only needs to meet the three conditions outlined on page 8.
According to the regulations, oil tanks are not considered pressure vessels. But it can’t be considered a pressure vessel either (for the 14th floor)
According to the regulations, oil tanks are not considered pressure vessels. Large oil tanks comply with GB50341-2003 \"Design Code for Vertical Cylindrical Welded Steel Oil Tanks\", while small oil tanks are generally designed as horizontal storage tanks and follow JB/T4735-1997 \"Welded Steel Pressure Vessels at Atmospheric Pressure\".