What is the classification of pressure vessel specific basis?
According to China "pressure vessel safety technology and supervision code" concerned regulation, if the airtight container at the same time satisfy the following conditions can be regarded as pressure vessels. (1) the highest working pressure is greater than or equal to 0.1 MPa (excluding fluid column pressure). (2) the internal diameter (non circular cross section refers to the maximum size section) is greater than or equal to 0.15 m, and the volume is greater than or equal to 0.025 m * 3. (3) medium for gas, liquefied gas, or the highest standard of working temperature is equal to the boiling point of liquid. According to the design pressure high and low pressure vessels can be divided into low pressure container 0.1 MPa or less (P < 0.1 MPa), medium pressure vessel 1.6 MPa or less (P < 10.0 MPa), high pressure vessel (10.0 MPa acuities were P < 100 MPa), ultrahigh pressure vessel (P 100 MPa or higher).
You also sent a volume, the diameter of a container two aspects, the main is dangerous degree, said from the Angle of mechanics, the larger the diameter, the smaller the bearing capacity.
You search on the Internet a "pressure vessel safety technology and supervision code", that is the basis of classification. You said these seem to be in attachment 1. If the reason is to ask division, the have to ask the Chinese association of special equipment (turn 010-8427558 association). Mandatory standards, can understand when we work sometimes, but there is a standard is better than no, work is based on at least.
The third class pressure vessel, has a wide range, as follows mainly: (1) the degree of toxicity to extreme and highly harmful medium medium pressure container. (2) the degree of flammable or toxic to moderate damage medium, and pV product more than 10 mpa, m * 3 medium pressure storage containers. (3) the degree of flammable or toxic to moderate damage medium, and pV product is greater than or equal to 0.5 MPa, m * 3 medium pressure reaction containers. (4) the degree of toxicity to extreme or highly harmful medium, and pV product is greater than 0.2 MPa, m * 3 low pressure container. Non-standard equipment any enterprise can make, need not accept special survey hospital inspection, however, can explode absolutely do not belong to the non-standard equipment. It is the responsibility of human life, even the teacher in class (previously reported), if it is a manufacturing problem, factory how can no responsibility
