Gas permeable refractory brick for use in regenerative heat exchanger and hot grid formed therefrom

US6389776B1 · kind B1 · utility

Assignee

• L'Air Liquide, Société Anonyme à Directoire et Conseil de Surveillance pour l'Étude et l'Exploitation des Procédés Georges Claude · FR

Inventors

• Marc Bremont · Paris, FR
• Karin Tynelius-Diez · Vélizy-Villacoublay, FR
• Nicolas Perrin · Champigny-sur-Marne, FR
• Philippe Queille · Paris, FR
• Joël Pierre · Champigny-sur-Marne, FR
• Michel Poteau · Mitry-Mory, FR

Key dates

• Filing date: Mar 14, 2000
• Grant date: May 21, 2002
• Expiry date: Mar 14, 2020

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F28D17/005
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

Provided are novel gas permeable bricks of a refractory material suitable for use in a hot grid of a regenerative heat exchanger. In accordance with one aspect of the invention, the brick has an inner face and an outer face on opposite sides of the brick. One or more cavities extend from the inner face partially into the brick. A plurality of channels for each of the cavities extend from the outer face to the cavities. The cavities and channels allow a gas to pass through the brick. Also provided is a hot grid suitable for use in a regenerative heat exchanger formed from a plurality of the bricks.