Recirculating drainage channel for the safety circuits of a nuclear reactor

US4243485A · kind A · utility

Assignee

• Societe Franco-Americaine de Constructions Atomiques-Framatome · FR

Inventor

• Michel Chabin · Paris, FR

Key dates

• Filing date: Mar 10, 1978
• Grant date: Jan 6, 1981
• Expiry date: Mar 10, 1998

Classification

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

Abstract

In a nuclear reactor, a drainage channel for the safety injection and spray circuits of the reactor is arranged in the bottom of the annular gap between two substantially vertical walls surrounding the pressure vessel of the reactor, the drainage channel comprising filter panels disposed vertically along each side of a central horizontal solid lower panel at the bottom of the annular gap and between two lateral horizontal solid upper panels so as to bound a central channel having vertical lateral filter walls communicating with two lateral chambers which communicate by substantially horizontal passages with a central collecting chamber disposed below the central lower panel and having an outlet for connection to the main intake of the safety circuit.