recently
the first combination of compressed air energy storage and flywheel energy storage in Liaoning province
demonstration project
Liaoshui new energy (Fushun) “compressed air flywheel” energy storage project
traffic tunnel formal tunnel construction
significant progress in project construction
entrance site
noun explanation
compressed air energy storage technology is known as the “stabilizer” and “super charging treasure” of the new power system, and it has no special requirements for geographical conditions, function, construction cost and response speed, efficiency and pumped storage power station, long service life, large energy storage capacity, energy storage cycle is not limited, flexible location, is a large-scale energy storage technology with the prospect of popularization and application.
Flywheel energy storage technology is an energy storage technology that uses a reciprocal bidirectional motor (motor/generator) to realize the mutual conversion between electrical energy and the mechanical energy of a high-speed rotating flywheel.
The project is located in Xinbin Manchu Autonomous County, Fushun City, Liaoning Province. It is planned to cover an area of about 60000 square meters. It adopts the “compressed air flywheel” hybrid energy storage technology route, with a total installed capacity of 100 MW and an energy storage scale of 400 MW. The supporting construction of a 10 MW flywheel energy storage system.
the 18th bureau of China railway undertook the construction of the underground gas storage project of the project. the construction contents include: core structures such as gas storage chamber, sealing plug and traffic hole. the gas storage adopts a large section cavern with annular arrangement. the diameter of the excavation section is nearly 17 meters, the total length of steel lining welding is 12000 meters, and the concrete pouring volume exceeds 60000 cubic meters. the engineering technology is difficult and the process is complicated.
traffic hole entrance
the traffic hole is a standard two-lane design, with a total length of about 267 meters, the precise connection with the existing water conveyance tunnel adit is the key channel and material transportation “aorta” for the subsequent construction of the main gas storage chamber “. In strict accordance with the requirements of fine management, the project team plans in advance and implements precise policies. Starting from the key links such as optimization of construction organization, strengthening of resource allocation, scientific arrangement of construction period and discussion of technical schemes, the project team repeatedly demonstrates and strictly compiles special construction schemes to build a solid foundation for the smooth progress of the tunnel.
It is understood that after the project is fully completed, the annual power generation capacity can reach 0.119 billion kilowatt-hours, which will provide 400 megawatt-hours of energy storage capacity for the Fushun City Power Grid and improve the rapid frequency modulation capability.
