What are the hazards of increasing main steam pressure when the main steam temperature of steam turbine remains unchanged? Let's take a look.
1. The steam humidity in the last several stages of the unit increases, which worsens the working conditions of the moving blades in the last several stages and increases the water scouring. For high temperature and high pressure units, the main steam pressure increases by 0.5mpa, and the humidity increases by about 2%.
2. The increase in enthalpy drop of the regulating stage will result in overloading of the moving blades of the regulating stage
3. will cause the stress increase of the main steam bearing parts, will shorten the service life of the parts, and may cause the deformation of these parts, so as to damage the parts.
The above is the main content of this explanation, I hope to help you, welcome to pay attention to our message your questions.
