steam cycle

From advanced demineralization systems to highly efficient condensers and degassers: we provide comprehensive solutions for efficiency and longevity in power plants

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Steam power plant: from clean water to electrical power

In the realm of power generation, the Rankine cycle stands as a cornerstone for thermal power plants, converting heat into mechanical work and electrical power. At the heart of this process is a meticulous balance of water and steam treatment, ensuring efficiency and longevity of the equipment. At Nuoro, we understand how demineralized water production, steam cycles, blowdown, steam condensers, and degassers play a crucial role in this cycle.

"Superheated steam, invisible for the naked eye but the driving force of all thermal power plants."

Steam boiler water degassing

The demin water is stored in the feedwater tank before being heated in the economizer. The preheated water then enters the steam drum, where it is further heated to produce saturated steam. In the boiler, the superheated steam is generated, which then drives the turbine. The turbine’s rotation converts thermal energy into mechanical energy, subsequently driving the generator to produce electricity.

 

Precision in water and steam treatment at this stage is paramount to prevent turbine blade erosion and to maintain efficiency. Blowdown is a critical process in maintaining water quality within the boiler. It involves the removal of a portion of the water to control the concentration of impurities, ensuring the boiler operates effectively. After doing its work in the turbine, the steam is cooled in the steam condenser, turning it back into water.

 

Finally, the water is sent to the degasser, where dissolved gases such as oxygen and carbon dioxide are removed. This step is essential to prevent corrosion in the boiler and the steam system. The treated water is then recirculated back to the feedwater tank, completing the cycle.

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