What do the design pressure and design temperature in the process conditions refer to? ? ?
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What do the design pressure and design temperature in the process conditions refer to? ? ? How is it obtained, and what significance does it have for instrument selection? ? ?
The design pressure refers to the calculated pressure specified in the strength calculation of pressure-bearing components; it is the maximum pressure at the top of the pressure vessel. Together with the corresponding design temperature, it serves as the design load condition, and its value must not be lower than the operating pressure. The design temperature is one of the design load conditions for pressure vessels; it refers to the metal temperature of the components under normal operating conditions (the average temperature across the metal cross-section of the components). As for instrument selection, I need to consult experts for advice~
The design pressure and design temperature are the maximum values that can be achieved under the extreme conditions provided by the process. . . It is generally used as the upper limit for instrument selection. . It is about the maximum pressure that the instrument manufacturer considers the instrument to be able to withstand. . But it is not the upper limit of measurement. . The upper measurement limit is often lower than the upper tolerance limit. .
In an energy distribution network, if the pressure is below the designed level, the measured flow rate will be higher, which results in financial losses during settlement.