U-shaped container under the flange connection
Flange connection is usually used in the pipe link, the link to seal the container, the role of the flange is to ensure good sealing of the container or pipe, to prevent gas or liquid leakage, so under normal circumstances flange connection sealing structure from the flange, Gaskets and fasteners. This structure is the most basic flange connection structure, usually used for pipe flange connection structure or container flange connection structure, in this connection structure, the same two flanges through the gasket, fasteners The flanges only have gaskets without other components. The temperature and pressure load on the two flanges are exactly the same. This type of flange can be designed and calculated directly according to the formula specified in the standard.
In addition, for shell-and-tube heat exchangers, the flange connection structure of the pipe flange differs from that of the container flange or the pipe flange. The structure consists of the flange of the pipe box, the gasket of the pipe box, the pipe plate, The gasket is composed of a flange and a housing flange. The two flanges are separated by a tube plate. When the gaskets on both sides, the temperature load, and the pressure load are inconsistent, the flange bolt force and the gasket reaction force cannot be simply loaded. Calculated according to the standard formula.
Therefore, when we use the flange, you can refer to the relevant provisions of the lower pressure vessel similar to the U-shaped tube heat exchanger tube plate flange on both sides of the design, due to the pressure and temperature on both sides and the gasket may be used Different, must have the necessary accuracy calculation before choosing the flange connection.