Ultra supercritical 1000MW steam turbine

supercritical 1000MW class steam turbine

The steam turbine serves as the core energy conversion equipment in thermal power plants. Its main structure consists of a stator and rotor, with steam seals installed between them. The stator is supported by a base plate and sliding pin system. To regulate steam intake, a steam distribution mechanism is installed. For safety assurance, a turning device is also equipped.

The ultra-supercritical 1000MW-class steam turbine series features single-shaft configurations with either four-cylinder four-pass or five-cylinder six-pass steam passages. Capable of adapting to various cooling methods including wet and air cooling systems, these turbines deliver substantial steam extraction capacity to meet heating and industrial demands. Through continuous innovation and upgrades, the company has achieved multiple industry firsts, establishing itself as a market leader with its cost-effectiveness, safety, and operational flexibility. These advantages have earned widespread acclaim and recognition from customers across the sector.

The ultra-supercritical 1000MW-class steam turbine operates within a power range of 900MW to 1300MW, with steam inlet parameters varying from 26.25MPa/600℃/600℃ to 30MPa/610℃/630℃. It employs a full-cycle steam injection system with a make-up steam valve, running in a fixed-slide-fixed cycle mode. The unit features high-low-pressure combined start-up and a rated speed of 3000r/min.

technological superiority ：

1) High performance:

small diameter, multi-stage, high efficiency;

AIBT blade flow and CFD structural flow optimization design;

The measured heat consumption of multiple units is less than the designed heat consumption.

The BEST micro-computer can be configured to further enhance the unit's economic efficiency.

2) Unique structure:

The cylinder type high pressure cylinder can bear higher main steam pressure/temperature;

N+1 bearing support with a short shaft system;

The moving and stationary parts expand in the same direction, and the sliding pin system is smooth.

3) Flexible operation: