Which parts of a thermal power plant require high-performance butterfly valves?

The main applications of high-performance butterfly valves in thermal power plants include the following key areas:

1. Boiler System

1. Feedwater System: Controls boiler feedwater flow to ensure stable operation.
2. Steam System: Regulates steam flow and pressure to ensure boiler safety.

2. Turbine System

1. Main Steam Pipeline: Regulates the main steam flow into the turbine.
2. Extraction Steam System: Controls extraction steam flow for feedwater heating or other purposes.

3. Cooling Water System

1. Circulating Water System: Regulates cooling water flow to ensure efficient condenser cooling.
2. Auxiliary Cooling Water System: Controls cooling water flow for auxiliary equipment.

4. Flue Gas Desulfurization (FGD) System

1. Absorber Inlet and Outlet: Regulates flue gas flow to ensure desulfurization efficiency.
2. Slurry Circulation System: Controls slurry flow to ensure desulfurization effectiveness.

5. Compressed Air System

2. Instrument Air System: Regulates instrument air flow to ensure normal operation of instruments and control equipment.
3. Plant Compressed Air System: Controls plant compressed air flow to meet equipment needs.

6. Fuel Supply System

1. Fuel Oil System: Regulates fuel oil flow to ensure stable combustion.
2. Fuel Gas System: Controls fuel gas flow to ensure combustion efficiency.

7. Condensate Water System

1. Condensate Pump Inlet and Outlet: Regulates condensate water flow to ensure stable system operation.

8. Drainage System

1. Drainage Pipeline: Controls drainage flow to prevent water hammer and equipment damage.

9. Chemical Water Treatment System

1. Demineralized Water System: Regulates demineralized water flow to ensure water quality standards.
2. Wastewater Treatment System: Controls wastewater flow to ensure treatment effectiveness.

Summary

High-performance butterfly valves are widely used in thermal power plants in boiler, turbine, cooling water, flue gas desulfurization, compressed air, fuel supply, condensate water, drainage, and chemical water treatment systems to ensure safe, stable, and efficient operation of the equipment.