Abstract

This document relates to combustion burners and associated methods of operation. In one aspect a burner is operated to produce harmonic resonance.

IPC Classes  ?

• F23C 15/00 - Apparatus in which combustion takes place in pulses influenced by acoustic resonance in a gas mass
• F23D 14/02 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
• F23D 14/32 - Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid using a mixture of gaseous fuel and pure oxygen or oxygen-enriched air
• F23D 14/34 - Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air

Abstract

A burner system comprises a main body having a fuel conveying passageway having in seriatim and in fluid communication one with the next, a fuel-receiving inlet, a main passageway, and a fuel-emitting outlet, and an air conveying passageway having in seriatim and in fluid communication one with the next, an air-receiving inlet, an intake air-flow chamber, at least one air-flow opening, turbulent air-flow chamber, and an air-emitting outlet. The air-emitting outlet and the fuel-emitting outlet are positioned and oriented to permit delivery of air and fuel, respectively, to a common destination for subsequent combustion. The ratio of the minimum cross-sectional area of the intake air-flow chamber to the minimum cross-sectional area of the turbulent air-flow chamber is between about 1:0.8 and 1:1.2.

IPC Classes  ?

• F23D 14/22 - Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
• F23D 11/40 - Mixing tubesBurner heads
• F23D 14/58 - Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration

Abstract

A cooling jacket, heat transfer apparatus and heat recovery apparatus for use with a burner comprises a main body having a front end and a back end and defining a longitudinal axis extending between the front end and the back end. There is at least one air inlet and a mixing chamber. A fuel passageway has a fuel receiving inlet and a fuel emitting outlet for delivering fuel to the mixing chamber. A first air flow channel has an inlet in fluid communication with the at least one air inlet, and an outlet disposed adjacent the fuel emitting outlet, for delivering air to the mixing chamber. The main body defines a fluid receiving and retaining chamber. There is a fluid inlet in the main body to permit the ingress of fluid into the fluid receiving and retaining chamber of the main body, and a fluid outlet in the main body to permit the egress of fluid from the fluid receiving and retaining chamber of the main body. A plurality of fluid directing vanes are disposed in the fluid receiving and retaining chamber of the main body to define a fluid flow path from the fluid inlet to the fluid outlet.

IPC Classes  ?

• F23D 14/78 - Cooling burner parts