Abstract: The intelligent steam pipeline network monitoring system can monitor the parameters of the steam pipeline network in real time and simulate the network by mathematical model. The monitoring system was applied to the medium pressure steam pipeline network of Sinochem Quanzhou Petrochemical Co.Ltd. The steam supply and inlet temperature of the turbine of the key unit were simulated under the two working conditions of -30 to 60 t/h and 30 to 90 t/h, which solved the problem of low inlet temperature of the turbine of some units. The method of adding new turbine to digest surplus steam and stabilize medium pressure pipeline network was put forward. It was recognized by simulation that the optimal position of the new turbine is near the FCC unit to realize energy saving optimization and safe and stable operation of the whole steam system.

Key words: medium pressure steam, real time monitoring, simulation optimization, new turbine added