Guizhou’s Groundbreaking Coal-Fired Power Project Achieves Milestone
On August 26, a significant milestone in clean energy technology was achieved with the completion of a 168-hour full-load trial operation of the No. 2 unit at the Guizhou Jinyuan Zhijin "Large Pressure Small" off-site reconstruction project. This remarkable feat was executed by China Energy Construction Anhui Power Construction Company No. 2. Previously, the first unit had been put into operation on August 6, marking the successful attainment of the "double investment" goal. This project proudly stands as the world’s first 660 MW ultra-supercritical double-arch coal-fired unit.
Advancements in Ultra-Supercritical Technology
At the core of ultra-supercritical coal-fired power generation technology is the enhanced ability to raise both pressure and temperature above critical parameters. This technological advancement achieves superior thermal efficiency and significantly reduces pollutant emissions. The Chinese "National High-Tech Research and Development Plan (‘863’ Plan)" initiated in 2003, defined ultra-supercritical parameters as steam pressure exceeding 25 MPa and steam temperature surpassing 580°C.
An Innovative Energy Solution in Guizhou
Situated in Zhuzang Town, Zhijin County, Bijie City, in Guizhou Province, this project represents a pioneering effort in efficient clean energy generation. It is among the first set of projects in Guizhou to implement an "integrated source, network, and load storage" model. Specifically, the project utilizes a cutting-edge 660 MW ultra-supercritical "W" flame boiler unit. This unique design addresses critical challenges such as ignition consistency, stabilization, and combustion of anthracite, presenting itself as a highly efficient solution in power generation.
Combustion Efficiency Enhancements
The innovative design introduces a "W"-shaped flame formation by positioning the furnace air outlet strategically along the sides of the furnace body. This novel approach substantially enhances combustion efficiency and uniformity, resulting in a cleaner burn. Notably, the boiler design achieves an unprecedented efficiency of 93%, contributing to a full-chain efficiency leap and ultra-low emissions.
Environmental Benefits and Economic Impact
Expected to generate approximately 6 billion kWh annually, this project is projected to yield an output value of around 2 billion yuan. Moreover, it has the potential to save approximately 120,000 tons of standard coal and reduce carbon dioxide emissions by over 300,000 tons, equivalent to the environmental benefit of planting 2 million trees. The successful implementation of this project is instrumental in optimizing the energy structure of the region, facilitating the transformation of Guizhou’s energy sector towards a more efficient, clean, and intelligent future.
Conclusion
The Guizhou Jinyuan Zhijin project serves as a beacon of innovation in coal-fired power generation. By embracing ultra-supercritical technology, it not only enhances energy efficiency but also plays a crucial role in reducing environmental impact. The project stands as a model for future energy initiatives, illustrating the potential for advancements in clean technology to transform energy production and contribute to sustainable development.
As the world continues to seek cleaner energy solutions, projects like these pave the way for a transition towards more responsible energy generation, underscoring the importance of embracing technological advancements in the pursuit of a sustainable future.
