The compressed air system in a hydropower station mainly includes the following types:

1.High-Pressure Air System

Equipment Used:

Hydraulic pressure devices

High-pressure air circuit breakers

Function:

Provides high-pressure air to ensure the stable operation and safety protection of the system. For example, hydraulic pressure devices provide necessary pressure support at critical times, and high-pressure air circuit breakers are used for insulation and arc extinction between high-voltage switch contacts.

2.Low-Pressure Air System

Main Purposes:

Unit Braking: Provides braking air to help safely stop the unit.

Turbine Main Shaft Maintenance Seals: Ensures the proper operation of the main shaft maintenance seals.

Industrial Air for Plant Use: Used for the operation of pneumatic tools and cleaning of the plant.

Function:

Provides the necessary air supply for daily maintenance and operation, ensuring the normal operation and maintenance of equipment.

Summary

These systems play a crucial role in the hydropower station, ensuring the normal operation and maintenance of equipment. The high-pressure air system, with its hydraulic pressure devices and high-pressure air circuit breakers, provides necessary pressure support at critical times. The low-pressure air system, on the other hand, is used for the daily maintenance and operational air supply, ensuring the efficient, safe, and stable operation of the hydropower station.