Classification problem
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Design pressure: 0.22 Mpa; design temperature: 90. Operating pressure: 0.2 Mpa; operating temperature: 85. V = 40 m^3; container dimensions: DN2800X5400. Is it under control? The gas phase space complies with the relevant regulations; I think it is under control
The medium is water, and the equipment is called an industrial water tank
Personally, I think all the other conditions are met for classifying the pressure vessel; it’s necessary to check whether the product of the pressure and volume in the gas phase space is greater than or equal to 2.5 MPa*L, and it seems that this value is far above that threshold
Yes, the pressure-volume product is greater than 2.5 MPa*L
My colleagues all say it’s uncontrolled, which is quite confusing
According to Clause 1.3, Note 1-4 of the new regulations: When the medium inside the container is a liquid whose maximum operating temperature is below its standard boiling point, this regulation also applies if the product of the volume of the gas space and the operating pressure is greater than or equal to 2.5 MPa·L. Since the original poster says the gas phase space meets the requirements, then classify it as one category
A colleague said that the gas phase consists of air, not water vapor, so it is not under control
I’d like to ask gently: why is it necessary to leave a gas phase space?
This post was last edited by chihongjun on 2010-10-19 09:54. Take a look – does clause 4 of section 1.4.1 of the regulations apply to your tank in a similar manner? If so, it should be classified as Category I according to Appendix A 1.3.5.
Air pressure tanks also need to be classified, right?
If the product of pressure and volume in the gas phase space is greater than or equal to 2.5 MPa·L, it should be considered a pressure vessel.