What kind of pressure vessel is the pressure vessel
Not, now the new capacity gauge to the classification of the pressure vessel regulation according to the PV value: classification of pressure vessels shall be in accordance with the first dielectric properties, classified according to the following requirements to figure, and then according to the design pressure p (MPa) and volume V (L), mark the coordinate points, determine the type of container: (1) for the first group of medium, the classification of the pressure vessel as shown in figure 1 A. (2) the classification of pressure vessels for the second group is shown in figure A minus 2. (see annex) grouping of medium pressure container medium is divided into the following two groups, including gas, liquefied gas or the standards of the highest working temperature is higher than or equal to the boiling point of the liquid. (1) the first group of dielectric: the toxic degree is extremely harmful, highly harmful chemical medium, explosive medium, liquefied gas. (2) the second medium: the medium except the first group. Other: according to the design pressure of the pressure vessel pressure hierarchies (p) is divided into low pressure, medium pressure and high pressure and ultrahigh pressure of four classes: (1) low voltage (code L) 0.1 MPa acuities were p < 1.6 MPa; (M) 1.6 MPa is not equal to p < 10.0 MPa; (3) high pressure (codename H) 10.0 MPa is not equal to p < 100.0 MPa; (4) super high pressure (codename U) p is greater than 100.0 MPa.
The second type of pressure vessel is the secondary pressure vessel. From the 4th edition of the first class builder's book, page 465. The estimate also comes from the January 1, 2014 version of the special equipment safety law of the People's Republic of China.
The classification of containers is not only related to stress, but also to the properties of the medium and volume, so the questions you ask are not comprehensive and cannot be answered
