Types of pressure vessels and main structural configurations

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This post was last edited by *aoyun_lu on 2010-6-30 10:48. In Appendix B \"Pressure Vessel Product Data Sheet\" of the new regulations, there are two items: \"Type of Pressure Vessel\" and \"Main Structural Configuration\". Regarding the types of pressure vessels, based on the principle of their function in the production process, they can be classified as follows: 1. Reaction pressure vessels (code R): Pressure vessels primarily used to carry out physical and chemical reactions of substances. Such as: reactors, reaction kettles, decomposition pots, vulcanization tanks, decomposition towers, polymerization kettles, autoclaves, ultra-high pressure reactors, synthesis towers, shift reactors, cooking pots, steam balls, autoclaves for autoclaving, and gas generators. 　　II. Heat exchange pressure vessels (code E): Pressure vessels primarily used for facilitating heat exchange of fluids. Examples include: shell-and-tube waste heat boilers, heat exchangers, coolers, condensers, evaporators, heaters, sterilization kettles, dyeing machines, drying cylinders, steaming and frying kettles, preheating kettles, solvent preheaters, steam boilers, steam stripping units, electric steam generators, and water jackets for gas generator sets. 　　III. Separation pressure vessel (code S): A pressure vessel primarily used for achieving fluid pressure balance and buffering, as well as for the purification and separation of gases. Such as: separators, filters, buffers, washers, absorption towers, copper washing towers, drying towers, stripping towers, oil collectors, steam separators, deaerators. 　　IV. Storage pressure vessels (code C, with spherical tanks coded as B): Pressure vessels primarily used for storing gases, liquids, liquefied gases, and other such substances. Such as: various types of storage tanks. The above-mentioned pressure vessels must undergo registration with the authorities responsible for the safety supervision and management of special equipment; only after obtaining the \"Special Equipment Use Registration Certificate\" can they be put into use. Regarding the type of main structure, I think one can choose from “single-layer rolled-welded type, forged-welded type, heat-fit type, multi-layer wound-type”. I’m not sure if these options are correct Seeking other opinions.