China's First Large Elliptical Semi-Underground Powerhouse for Pumped Storage Delivered
Auf einen Blick
- China's first ultra-large rock-plug hybrid pumped storage power station, the Zhejiang Huadian Quzhou Wuxijiang 298MW hybrid pumped storage power station, has officially delivered its semi-underground powerhouse.
- The station will enhance Zhejiang's power grid capacity and complement renewable energy sources.
KI-generierte Zusammenfassung
Warum es wichtig ist
The Zhejiang Huadian Quzhou Wuxijiang 298MW hybrid pumped storage power station is a significant infrastructure project in China, featuring the country's first ultra-large rock-plug type, largest elliptical vertical shaft, and semi-underground powerhouse. The project aims to enhance the power grid's capacity and support renewable energy integration.
中新网西宁6月3日电(祁增蓓)记者3日从中国水利水电第四工程局有限公司(简称“水电四局”)获悉，日前，中国首座超大岩塞式混合抽蓄最大椭圆竖井半地下厂房——浙江华电衢州乌溪江298兆瓦混合式抽水蓄能电站厂房正式交付，机电设备安装工程同步开工建设。
乌溪江混合式抽水蓄能电站装机容量298兆瓦，主要承担浙江电网调峰、填谷、储能、调频及应急备用等功能。水电四局负责承建项目引水、半地下厂房、尾水、启闭机房及河道疏浚等工程。
5月20日，航拍浙江华电衢州乌溪江298兆瓦混合式抽水蓄能电站半地下厂房。 水电四局供图
项目核心竖井式主厂房既是中国首座、目前最大的椭圆形半地下厂房，亦是中国东部地区唯一全程处于柱状节理围岩的水电工程。该厂房长轴49.3米、短轴35.3米、深度70.7米，地质条件特殊、施工技术难度大。
针对工程特大断面围岩稳定性差、支护周期长、出渣效率低等施工难点，项目团队通过优化爆破参数、升级锚索注浆工艺，保障施工安全与质量。并创新采用双导井并联溜渣系统，颠覆传统单井出渣模式，将单循环出渣量由800立方米提升至1540立方米，出渣效率提升近一倍，有效缩短施工周期。
据悉，该电站投运后将接入浙江省220千伏电网，有效提升该省电网调峰填谷能力，与区域风电、光伏项目形成发电互补，助力消纳新能源。(完)
Worauf zu achten ist
KI-Ausblick — Möglichkeiten, keine Fakten
The power station will improve Zhejiang's power grid stability and renewable energy absorption.
Sehr wahrscheinlich · Kurzfristig
The equipment installation engineering will commence.
Sehr wahrscheinlich · Sofort
Offene Fragen
- What is the exact timeline for the full operationalization of the power station?
- What are the specific challenges anticipated during the equipment installation phase?
- How will the power station's integration with regional wind and solar projects be managed?
- What are the long-term environmental impacts of the station's operation?
