Flow distribution device, lower internals of reactor and reactor

US10636530B2 · kind B2 · utility

Assignees

• State Nuclear Power Technology Corporation Ltd. · CN
• SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE CO., LTD. · CN

Inventors

• Shaoxuan Lin · Shanghai, CN
• Yejia Liang · Shanghai, CN
• Zonghua Ding · Shanghai, CN
• Ming Zhang · Mount Royal, CA
• Qing Yu · Zhenjiang, CN
• Wei Zhang
• Weida Yao · Shanghai, CN
• Fan Yu · He‘nan, CN

Key dates

• Filing date: Jan 8, 2014
• Grant date: Apr 28, 2020
• Expiry date: May 6, 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 flow distribution device (3) for a reactor, a lower internals (100) of a reactor and a reactor are provided. The lower internals (100) includes: a lower core support plate (2) defining a coolant hole therethrough; a flow distribution device (3) mounted on the lower core support plate (2) and including a distribution annular plate (8) and a distribution bottom plate (9); a vortex suppression plate (7) disposed below the distribution bottom plate (9); a support column (4) defining an upper end connected with the lower core support plate (2) and a lower end passing through the distribution bottom plate (9) to connect with the vortex suppression plate (7); an energy absorption device (5) defining an upper end connected with the vortex suppression plate (7); and an anti-break bottom plate (6) disposed on the lower end of the energy absorption device (5).