Pressure vessels are classified according to the capacity gauge, and the comprehensive classification method is adopted, which not only considers the product of vessel pressure and volume, but also considers the danger of medium and the role of vessels in the production process, which is convenient for safety technical supervision and management. In this method, pressure vessels are divided into three categories:
1. Class I pressure vessels, and low-pressure vessels other than those specified above are Class I pressure vessels.
It can be seen that the domestic classification methods of pressure vessels comprehensively consider the influencing factors such as design pressure, geometric volume, material strength, application situation and medium damage degree.
Classification by pressure grade: pressure vessels can be divided into internal pressure vessels and external pressure vessels.
According to the design pressure (P), internal pressure vessels can be divided into the following four pressure levels:
Low pressure (code l) vessel 0.1MPa ≤ p <1.6 MPa;
Medium pressure (code M) container1.6 MPa ≤ P <10.0 MPa;
High pressure (code H) container10mpa ≤ P <100mpa;
Ultra-high pressure (code U) vessel p≥ 100MPa.
2. Class II pressure vessels are under any of the following circumstances:
Medium pressure vessel;
Low pressure vessel (only used for highly toxic and dangerous media);
Low-pressure reaction vessel and low-pressure storage vessel (flammable medium or moderately toxic medium only);
Low pressure shell-and-tube waste heat boiler;
Low pressure glass lined pressure vessel.
3. Three types of containers:
High pressure vessel;
Medium pressure vessel (only for highly toxic and dangerous media);
Medium pressure storage containers (only flammable or moderately hazardous media with pV product greater than or equal to 10 MPa m3);
Medium-pressure reaction vessel (only flammable or moderately hazardous medium with pV product greater than or equal to 0.5 Pa·m3);
Low-pressure vessels (only used for extremely and highly dangerous media with products greater than or equal to 0.2 MPa·m3); ;
High and medium pressure shell-and-tube waste heat boilers;
Medium pressure glass-lined pressure vessel;
Pressure vessels made of high-strength materials (the lower limit of tensile strength specified in the corresponding standards is greater than or equal to 540 MPa);
Mobile pressure vessels include railway tank cars (medium is liquefied gas and cryogenic liquid), tank cars [liquefied gas transport (semi-trailer), cryogenic liquid transport (semi-trailer) and permanent gas transport (semi-trailer)] and tank containers (medium is liquefied gas and cryogenic liquid).
Spherical storage tank (volume greater than or equal to 50m3); Cryogenic liquid storage container (volume greater than 5m3).
Cryogenic liquid storage container (volume greater than 5m3)
The smaller categories are:
Classification of reaction kettle: stainless steel reaction kettle external coil reaction kettle high pressure reaction kettle enamel reaction kettle steam reaction kettle
Classification of pressure vessels: pressure vessel factories
Non-standard pressure vessel Non-standard pressure vessel factory
Classification of gas storage tanks: stainless steel tanks, stainless steel tanks and air cannons.
Classification of oil tanks: buried oil tanks, horizontal oil tanks, vertical oil tanks, transformer oil tanks, horizontal oil tanks and horizontal oil tanks.
Classification of heat exchangers: spiral plate heat exchanger, tube heat exchanger, plate heat exchanger, radiation heat exchanger and high-frequency welded finned tube heat exchanger.
Evaporator classification: evaporator, thin film evaporator, neutralization kettle, polymerization kettle, resin equipment distillation equipment.
Classification of precipitation tanks: suction filter deaerator
Classification of fermentation tanks: liquid fermentation tanks, solid fermentation tanks, air-lift fermentation tanks, anaerobic fermentation tanks and photosynthetic bacteria reaction tanks.
Cylinder classification: dryer separator
Classification of crystallization pot: crystallization pot stainless steel crystallization pot crystallizer crystallization barrel concentration pot
Classification of crystallization tanks: concentrating crystallization tanks, concentrators, concentrator instruments
Condenser classification: tube bundle condenser, spiral plate heat exchanger, alcohol recovery tower, storage container.
Classification of coolers: oil cooler, aluminum cooler, air cooler, shaft seal heater, shaft seal cooler and motor air cooler.
Classification of vulcanizing tanks: horizontal vulcanizing tanks, vertical vulcanizing tanks, giant vulcanizing tanks, indirect heating vulcanizing tanks, electric heating vulcanizing tanks, direct vulcanizing tanks, indirect vulcanizing tanks, vertical vulcanizing tanks and horizontal vulcanizing tanks.
Classification of concentration tanks: fermentation kettle autoclave seed tank reboiler storage tank distillation tank
Classification of internals: tray tower, rectification tower and absorption tower.
Classification of extraction tanks: pharmaceutical equipment, Chinese medicine extraction equipment, concentrator, alcohol recovery equipment,
Air lift desuperheater and pressure reducer
Classification of loosening machine: coal bunker loosening machine coal bunker dredging machine silo wall vibrator
Classification of reaction tanks: reaction container spray precipitation tank, heat preservation liquid storage tank, aluminum transportation tank, fermentation tank, seed tank and aluminum storage tank.
Classification of reaction kettle: electric heating reaction kettle stainless steel reaction kettle vacuum decompression concentration tank reaction kettle
So, you just need to compare and you will know the answer! I hope you can be satisfied with my answer!