Metal wall temperature in the heat exchanger technical specifications table
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Hello, teachers! The main components of the tube side of a heat exchanger include: the tube sheet, heat exchange tubes, and tube plate. According to GB/T 150, P7, clause 4.4.3, item a): \"When the metal temperatures of various parts are different under operating conditions, design temperatures can be set separately for each part.\" ； The shell-side design temperature and the tube-side design temperature are respectively the design temperatures of the shell on the shell side and the tube box on the tube side. It can be understood that the design temperature for the tube bank is only relevant to the tube bank itself and has nothing to do with the heat exchange tubes, right? In the technical parameter tables of many heat exchanger drawings, there is a value for the metal wall temperature, which is used to calculate the expansion difference between the tube side and the shell side. Is this metal wall temperature required in the technical specifications table? Is it specified in the regulatory standards?
The metal wall temperature should be included in the technical specifications table. It is specified in TCED41002-2012
The metal wall temperature in the heat exchanger technical specifications is determined through thermal calculations
It is necessary to provide for fixed tube sheet heat exchangers, as it is required for strength calculations.