Migration prevention system for radioactive wastewater of underground nuclear power plant

US10373720B2 · kind B2 · utility

Assignee

• CHANGJIANG SURVEY PLANNING DESIGN AND RESEARCH CO., LTD. · CN

Inventors

• Xinqiang Niu · 红钢城街道, CN
• Qigui Yang · 红钢城街道, CN
• Hongbin Li · Shanghai, CN
• Shuda Zhou · 红钢城街道, CN
• Xin Zhao · Austin, US
• Huatang Shi · 红钢城街道, CN
• Qianlong Han · 红钢城街道, CN
• Nianfeng Xu · 红钢城街道, CN
• Haibo Liu · 东风镇, CN
• Jie He · Beijing, CN
• Weina Yu · Nanhu, CN
• Lijun Su · 红钢城街道, CN
• Yanguo Fang · 红钢城街道, CN

Key dates

• Filing date: Dec 12, 2016
• Grant date: Aug 6, 2019
• Expiry date: Feb 15, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E30/30
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A migration prevention system for radioactive wastewater from an underground nuclear power plant. The underground nuclear power plant includes a nuclear island including an underground cavern group including a reactor cavity and auxiliary cavities. The migration prevention system includes a protective layer coating the reactor cavity and an impermeable layer surrounding the nuclear island. The protective layer includes an inner liner, a drainage layer, and a filling layer of rock fractures in that order. The inner liner is configured to prevent exosmosis of the radioactive wastewater of the reactor cavity. The drainage layer is configured to gather and drain seepage water. The impermeable layer is disposed in the periphery of the underground cavern group including the reactor cavity and the auxiliary cavities, and is configured to isolate the underground cavern group from natural underground water.