Currently, the newly built main power plant units in Indonesia rely heavily on equipment and power plant technologies sourced from China. Each unit has a capacity of over 100 MW, and the steam parameters of the steam turbines are typically high-temperature and high-pressure, featuring a dual-cylinder configuration consisting of a high-pressure cylinder and a low-pressure cylinder. The steam flows from the high-pressure cylinder to the low-pressure cylinder via steam导管, resulting in pressure and temperature losses that reduce the steam's ability to perform work and increase... Steam turbine generator set The increased heat consumption has led to a higher coal consumption at the power plant. Meanwhile, the turbine rotor consists of both high-pressure and low-pressure sections, which not only increases the number of cylinders and bearings in the steam turbine generator set but also raises equipment costs. Consequently, the turbine foundation has become larger, resulting in higher civil engineering investment costs. As the total length of the rotor increases, the vibration performance of the steam turbine generator set will be affected when the turbine operates under off-design conditions, thereby compromising the operational reliability of the unit.

　　To address the issues present in existing technologies, technicians have developed a power plant steam turbine unit that reduces steam temperature and pressure losses, thereby effectively enhancing the operational stability of generator sets at high speeds. To achieve the above objective, this power plant steam turbine unit employs the following technical solution: a high-efficiency power plant. Steam turbine generator set The system includes a coupling, a steam turbine, a boiler, a condenser, a generator, and a condensate pump. The steam turbine comprises a low-pressure section of the turbine casing, a high-pressure section of the turbine casing, and a turbine rotor. The high-pressure section and the low-pressure section of the turbine casing are integrally connected via a shaft-pin structure, which then forms the complete steam turbine together with the turbine rotor. The steam turbine is connected to the generator through a coupling, and a turning gear is installed between the coupling and the steam turbine. The inlet of the high-pressure section of the turbine casing is connected to the boiler’s steam outlet via a main steam pipe and a main steam valve. The outlet of the low-pressure section of the turbine casing is connected to the condenser’s inlet via a steam pipe. The condensed water collected by the condenser is sequentially pumped by a condensate pump and a feedwater pump and then returned to the boiler for reuse in the cycle. In addition, a low-pressure heater and an oxygen remover are installed on the pipeline between the condensate pump and the feedwater pump. Both the low-pressure heater and the oxygen remover are connected to the low-pressure section of the turbine casing via steam pipes, with the low-pressure heater positioned upstream of the oxygen remover. A high-pressure heater is installed on the pipeline between the feedwater pump and the boiler, and it is connected to the high-pressure section of the turbine casing via a steam pipe. The condenser is connected to a mechanically ventilated cooling tower via a pipeline, and a circulating water pump is installed on the pipeline between the condenser and the mechanically ventilated cooling tower. Furthermore, a steam bypass device is installed on the main steam pipe at the steam turbine’s inlet; the exhaust port of the steam bypass device is connected via a pipeline to the condenser’s inlet. Additionally, the upper part of the condenser is equipped with a make-up water inlet, which is connected via a pipeline to a water treatment unit. Moreover, a dosing and sampling device is installed at the outlet of the condensate pump. The turbine rotor is supported by a front bearing and a rear bearing of the steam turbine. The generator is supported by a front bearing and a rear bearing of the generator. Both the steam turbine and the generator are mounted on a platform at the same elevation.

　　Compared with existing technologies, the aforementioned power plant... Steam turbine generator set Has the following beneficial effects:

　　1. By integrating the turbine cylinder and rotor, the turbine’s conventional double-cylinder, double-exhaust structure has been changed to a single-cylinder, single-exhaust structure, thereby shortening the length of the turbine rotor, eliminating external steam ducts on the cylinder body, reducing the number of bearings, and effectively enhancing the unit’s stability during high-speed operation.

　　2. The power plant’s steam turbine unit is equipped with a steam bypass system in the main steam pipeline at the turbine inlet. The exhaust port of the steam bypass system is connected via a pipe to the inlet of the condenser. In the event of a grid failure, steam is no longer directed into the turbine but instead flows directly through the steam bypass system to the condenser, thereby enhancing the turbine’s rapid-response capability.