What is the effect of the main steam pressure on the steam turbine?
At this time into the steam turbine steam parameters, flow and condenser vacuum changes, will cause the pressure at all levels, temperature, enthalpy drop, efficiency, reaction and axial thrust changes.
In the actual operation, it is difficult to strictly maintain the design value of the parameters, this design conditions do not meet the operating conditions, known as the steam turbine variable conditions.
At present, most of the large-scale steam turbine heat calculation conditions are taken to the rated conditions, for this unit design conditions and rated conditions to become the same conditions.
If the various parameters are equal to the rated value during operation, this condition is called rated operating conditions.
In the steam turbine operation, the beginning of the steam pressure, steam temperature, the main steam flow and other parameters are equal to the design parameters, this operating conditions known as the design conditions, this time the highest efficiency, it is also known as economic conditions.
