High turbulence boiler

US4424768A · kind A · utility

Inventor

• Luigi Testa · Milano, IT

Key dates

• Filing date: Feb 3, 1982
• Grant date: Jan 10, 1984
• Expiry date: Feb 3, 2002

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F24H1/28
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A boiler has a combustion chamber wherein combustion occurs under high turbulence and wherein the combustion products in the form of smoke are exhausted from the boiler in proximity to the liquid to be heated in a manner whereby the risk of the smoke path being clogged by soot is eliminated so that pollution of the ambient atmosphere is negligible. The burner-operated boiler has a combustion chamber which, at least in front of the burner, is defined by a concave wall section having its concavity facing the burner. In this manner, a recirculation of a portion of the smoke is obtained in the combustion chamber creating a high turbulent condition thereby facilitating complete combustion. The smoke is discharged from the combustion chamber into a smoke sleeve have a substantially annular shape with a vertical axis wherein the only horizontal wall on which deposition of soot may occur is very small. In certain embodiments, at least one vertical smoke conduit is provided through which smoke is directed from the combustion chamber and from which the smoke exits into the smoke sleeve to combine with the smoke which had directly entered into the latter from the combustion chamber. Any soot …