Design temperature and pressure considerations for the tower top condenser
Thread Content
For the top condenser (cooled by circulating water), the operating temperature and pressure on the medium side are 50°C and 2 MPa. May I ask, what should be considered for the steam purging temperature and pressure during shutdown?
If steam purging is required, the parameters for steam purging should be considered as verification parameters. However, the vessel connected to the condenser during purging is generally vented, so the steam pressure used for purging is usually at atmospheric pressure or a pressure taking into account pressure drops. Also, could steam purging be avoided and alternatives such as nitrogen be used instead?
For example, when using low-pressure steam at 0.3 Mpa and 140°C for verification, how is that taken into account?
Original poster, which side of the heat exchanger is affected during cleaning? Please be more specific. You should also provide information on the heat exchanger’s operating parameters, such as the pressure and temperature in each tube side, so that an accurate assessment can be made.
For such problems, from which aspects should we analyze them?