Are fire cylinders special equipment?
Time：
2022-10-20
Fire extinguishers belong to special equipment, pressure vessels. Storage pressure vessel (code C, spherical tank code B) : mainly used to store and contain gas, liquid, liquefied gas and other media pressure vessel, such as various types of storage tanks.
Pressure vessel refers to the sealed equipment containing gas or liquid and bearing a certain pressure. A pressure vessel is a closed vessel that can withstand pressure. Pressure vessels are widely used and play an important role in many sectors such as industry and civil use as well as in many fields of scientific research.
Classification of containers
Overview of Classification
There are many ways to classify pressure vessels, including the following from the point of view of use, manufacture and supervision.
(1) According to the level of pressure: low pressure vessels, medium pressure vessels, high pressure vessels and ultra-high pressure vessels.
(2) according to the dressing medium is divided into: non-flammable, non-toxic; Flammable or poisonous; Highly toxic.
(3) According to the different roles in the process:
Reaction container: used to complete the physical and chemical reaction of the medium container.
(2) Heat exchange container: used to complete the medium of the heat exchange container.
Separation container: used to complete the mass exchange of the medium, gas purification, solid, liquid, gas separation container.
(4) Storage and transportation container: used for containing liquid or gas materials, storage and transportation media or pressure plays a balanced buffer container.
Division of varieties
According to the principle of pressure vessels in the production process, they are divided into reaction pressure vessels, heat exchange pressure vessels, separation pressure vessels and storage pressure vessels. The specific division is as follows:
(1) Reaction pressure vessel (code R) : mainly used to complete the physical and chemical reaction of the medium pressure vessel, such as reactor, reaction kettle, decomposition pot, canister, decomposition tower, polymerization kettle, autoclave, ultra autoclave, synthesis tower, converter furnace, cooking pot, steam ball, autoclave, gas generator, etc.
(2) Heat exchange pressure vessel (code E) : mainly used to complete the heat exchange of the medium pressure vessel, such as shell and tube type waste heat boiler, heat exchanger, cooler, condenser, heater, disinfection pot, dyeing pot, dryer, steaming pot, preheating pot, solvent preheater, steamer, steam extractor, electric steam generator, gas generator water jacket.
(3) Separation pressure vessel (code S) : It is mainly used to complete the fluid pressure balance buffer of the medium and the pressure vessel of gas purification and separation, such as separator, filter, oil collector, buffer, scrubber, absorber, copper washing tower, drying tower, stripping tower, cylinder, deaerator, etc.
(4) Storage pressure vessel (code C, spherical tank code B) : mainly used for storage, containing gas, liquid, liquefied gas and other media pressure vessel, such as various types of storage tanks.
In a pressure vessel, where there are more than two principles of process action at the same time, the varieties should be classified according to the main role in the process.
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