Pressure vessels are usually welded structures composed of plates and shells. Among the pressure components, the shells corresponding to the cylindrical barrel, spherical tank (or spherical head), oval head, dish head, spherical crown head, conical head and expansion joint are cylindrical shells, respectively. , Spherical shell, ellipsoid shell, spherical crown + ring shell, spherical crown, cone shell and ring plate + ring shell.
The pressure components such as flat cover (or flat head), ring plate, flange, tube plate and so on correspond to circular flat plate, ring plate (the difference between the outer radius and the inner radius is greater than 10 times the plate thickness), ring (outer radius (The difference from the inner radius is less than 10 times the plate thickness) and the elastic base round flat plate.
The above 7 kinds of shells and 4 kinds of plates can be combined into a variety of pressure vessel structure forms, plus sealing elements, supports, safety accessories, etc. to form a complete pressure vessel. Figure 1-1 is the overall structure diagram of a horizontal pressure vessel.
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