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What is a pressure vessel? What are included?
Release time:
Jul 28,2024
Pressure vessels refer to sealed containers that hold a certain medium or vacuum. According to their operating principles in the production process, pressure vessels can be divided into four types: reaction pressure vessels, heat exchange pressure vessels, separation pressure vessels, and storage pressure vessels. Pressure vessels include liquefied gas tanks, acetylene tanks, oxygen tanks, boilers, pressure cookers, air pump storage tanks, etc.
1. Pressure vessels have a wide range of applications. It plays an important role in various sectors of the national economy, such as the petrochemical industry, energy industry, scientific research, and military industry. Pressure vessels generally consist of six main parts: cylinder, head, flange, sealing element, opening and connecting pipe, and support. In addition, it is equipped with safety devices, meters, and internal components with completely different production processes. Due to sealing, pressure bearing, and medium, pressure vessels are prone to explosions, fires, and accidents that endanger the safety of personnel, equipment, and property, as well as pollute the environment. It is listed as an important product for supervision and inspection by countries around the world, and is subject to supervision, inspection, and technical testing by specialized institutions designated by the state in accordance with national regulations and standards.
2. There are many classification methods for pressure vessels, including the following from the perspectives of use, manufacturing, and inspection. Pressure vessels (1) are classified according to the level of pressure they can withstand: low-pressure vessels, medium pressure vessels, high-pressure vessels, and ultra-high pressure vessels.
(2) Classified by the medium of packaging: non flammable, non-toxic; Flammable or toxic; Highly toxic.
(3) According to the different functions in the process, it can be divided into:
① Reaction vessel: a container used to complete physical and chemical reactions of a medium.
② Heat exchanger: a container used to complete the heat exchange of a medium.
③ Separation container: a container used for mass exchange of media, gas purification, solid, liquid, and gas separation.
④ Storage and transportation container: a container used to hold liquid or gas materials, storage and transportation media, or to balance and buffer pressure
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