The difference between boilers and pressure vessels
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1. Does a steam generator belong to boilers? 2. For example, in the case of a 5-cubic-meter back-pressure reactor, steam needs to be introduced directly during the material mixing and reaction process for heating; the heating temperature should not exceed the boiling point of the materials, and the reactor does not have a jacket. Should this reactor be a boiler or a pressure vessel, or does it only need to be manufactured as a vessel at atmospheric pressure?
It does not belong to boilers; whether it is considered a pressure vessel depends on specific parameters, with the 2014 \"Catalogue of Special Equipment\" issued by the General Administration of Quality Supervision, Inspection and Quarantine serving as the basis for such determination.
The original poster will understand once they learn the definition of a boiler. A boiler is a device that uses various fuels, electricity, or other forms of energy to heat the liquid contained within it to certain parameters, and supplies thermal energy by releasing the resulting medium. It is defined as a pressurized steam boiler whose designed normal water level volume is 30L or more, and whose rated steam pressure is 0.1MPa or more (gauge pressure) ； Pressure-bearing hot water boilers with an outlet water pressure of 0.1 MPa (gauge pressure) or higher, and a rated power of 0.1 MW or higher ； Organic heat carrier boilers with a rated power of 0.1 MW or greater.
It does not belong to boilers; it belongs to pressure vessels. Whether it is manufactured as a pressure vessel at normal pressure depends on the requirements of the designed operating conditions. If the design pressure exceeds 0.1 MPa, it must be designed and manufactured in accordance with pressure vessel standards.
For pressure vessels, you can find out the specific details by checking the inspection certificate, or by looking at the technical specifications and standards referenced in the as-built drawings.
1 does not belong to boilers; 2 are generally pressure vessels, but it also depends on the materials after the reaction
A boiler, code 1000, refers to a device that uses various fuels, electricity, or other forms of energy to heat the liquid contained within it to certain parameters, and supplies thermal energy by releasing the resulting medium; it is defined as a pressure-bearing steam boiler whose designed normal water level volume is 30L or more, and whose rated steam pressure is 0.1MPa or more (gauge pressure)； Pressure-bearing hot water boilers with an outlet water pressure of 0.1 MPa (gauge pressure) or higher, and a rated power of 0.1 MW or higher ； Organic heat carrier boilers with a rated power of 0.1 MW or greater. Pressure vessels, code: 2000, refer to enclosed devices used for holding gases or liquids and subjected to certain pressures. They include fixed and mobile vessels whose maximum operating pressure is greater than or equal to 0.1 MPa (gauge pressure) for gases and liquefied gases, and whose maximum operating temperature is greater than or equal to their standard boiling point; such vessels also have a volume of 30 L or more and an inner diameter of 150 mm or more (for non-circular cross-sections, this refers to the largest geometric dimension of the cross-sectional boundary) ； 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 chamber. Functional difference between the two: A boiler heats and supplies energy in the form of a specific medium, that is, its purpose is to convert and deliver energy. Pressure vessels, used to hold pressurized media.
It’s been dug up and posted again; the parameters aren’t complete, yet you’re still able to determine whether it’s a boiler or a pressure vessel – you’re all really amazing.