FIREBOX (VERSIONS) AND METHOD OF FUEL DISTRIBUTION IN FURNACE Russian patent published in 2017 - IPC F23R3/18 F23R3/12 

FIELD: heating.

SUBSTANCE: insert contains a set of pipes, flow regulator, the radial channel passing through the mentioned flow regulator, and an annular liner. Set of tubes is positioned to form tube bundle, supported by at least one plate extending in a radial direction inside the furnace. Each tube has an upstream end spaced axially from the downstream end, and provides fluid communication through the tube bundle. Stabilizer flow passes upstream of the upstream end of one or more tubes of a set of tubes. The flow stabilizer has an inner surface and an outer surface. The annular liner has an inner surface and an outer surface that is generally concentric with a flow regulator and has a downstream end which is at least partially surrounded by said stabilizer. The downstream end of the edge ends. The inner surface of the flow and the outer annular surface of the insert to limit radial flow regulator area, and inner and outer surfaces of the liner to limit axial annular flow area. Method of fuel distribution in the furnace provides a working fluid flowing through the flow regulator.

EFFECT: increase in the flame stability during combustion and expansion performance range for low reactive fuel gas, such as methane.

16 cl, 5 dwg