초록 ▼

A ground flare stack is described having a plurality of stages for combustion to accommodate various quantities of combustible waste gas, the stack having a dished base of gravel with a central combustion chamber with an enlarged opening at the bottom for entrance of air to support combustion, the c

A ground flare stack is described having a plurality of stages for combustion to accommodate various quantities of combustible waste gas, the stack having a dished base of gravel with a central combustion chamber with an enlarged opening at the bottom for entrance of air to support combustion, the central combustion chamber having an enlargement at its upper end with a converging discharge, a plurality of stages of combustion being provided within the chamber, the central combustion chamber being surrounded by a stack in spaced relation with a converging portion disposed around the combustion chamber enlargement and a cylindrical stack thereabove, with a diode to prevent downflow through the cylindrical stack, an acoustical and wind shielding fence being around the bottom of the stack permitting air to be supplied to the bottom of the stack and of the combustion chamber, additional stages of combustion being provided outwardly of the upper end of the central combustion chamber.

대표청구항 ▼

A ground flare stack comprising a combustion chamber open at the top and having its lower margin elevated for entry of air for supporting combustion in a first combustion zone in said combustion chamber, a wall surrounding said combustion chamber in spaced relation thereto and having its lower margi

A ground flare stack comprising a combustion chamber open at the top and having its lower margin elevated for entry of air for supporting combustion in a first combustion zone in said combustion chamber, a wall surrounding said combustion chamber in spaced relation thereto and having its lower margin elevated for entry of air for distribution to said combustion chamber and to the interior of said wall and providing a second combustion zone above said combustion chamber, a stack extending upwardly from said wall for the discharge of products of combustion, a connection to a supply of waste combustible gas, members including first burner nozzles at the same level in the lower part of said combustion chamber in a plurality of groups connected to said supply connection of waste combustible gas for combustion in said first zone, each group of first burner nozzles including means responsive to increasing supply of waste gas to sequentially supply each group of first burner nozzles with waste gas so as to operate in a first plurality of stages, and members including second burner nozzles at the same level interiorly of said wall and exteriorly of said combustion chamber in a plurality of groups connected to said supply connection of waste combustible gas for combustion in said second zone each group of second burner nozzles including means responsive to an increasing supply of waste gas to sequentially supply each group of second nozzles with waste gas so as to operate in a second plurality of stages after the operation of the first burner nozzles.