Patent application number | Description | Published |
20130052597 | Oxygen Enrichment of Premix Air-Gas Burners - A premix burner arrangement for safely oxygen-enriching a premix air-fuel combustion system is disclosed. In the disclosed burner arrangement, a first conduit is arranged and disposed to provide a first gas stream. The first gas stream is a self-reactive or self-flammable premixture comprising air and a combustible gas. At least one second conduit is arranged and disposed to provide a second gas stream circumferentially around the first gas stream. The second gas stream includes oxygen. The premix burner arrangement is configured to combust or react the first stream at a temperature at least 1000° F. greater than the temperature of the second stream. A method and combustion system including the premix burner arrangement are also disclosed. | 02-28-2013 |
20130095437 | Oxy-Fuel Furnace and Method of Heating Material in an Oxy-Fuel Furnace - An oxy-fuel furnace and method of heating material in an oxy-fuel furnace are disclosed. The method includes combusting oxygen and fuel with an oxy-fuel burner arrangement in the oxy-fuel furnace forming combustion gases, and maintaining a vortex including the combustion gases within a central region of an enclosure of the oxy-fuel furnace. The oxy-fuel burner arrangement includes a plurality of high momentum oxy-fuel burners arranged at an angle to generate the vortex, the angle being greater than 15 degrees but less than 75 degrees with respect to a furnace wall boundary of the enclosure, an angular velocity of greater than 0.07 radians per second, or a combination thereof. The furnace includes an oxy-fuel burner arrangement including at least two high momentum oxy-fuel burners having high shape factor nozzle geometries, and an enclosure. The vortex increases convective heating within the enclosure and uniformity of heating within the enclosure. | 04-18-2013 |
20130143168 | Rapid Energy Release Burners And Methods For Using The Same - A burner having a high shape factor nozzle including a nozzle opening having a shape factor from about 10 to about 75, the shape factor being defined as the square of the nozzle perimeter divided by twice the nozzle cross-sectional area, and an annular nozzle surrounding the high shape factor nozzle, wherein the high shape factor nozzle is configured to be supplied with one of a fuel gas and an oxidizer gas, and the annular nozzle is configured to be supplied with the other of a fuel gas and an oxidizer gas. A method of rapid energy release combustion, including supplying a fuel gas and an oxidizer gas to a burner having a high shape factor nozzle and an annular nozzle surrounding the high shape factor nozzle. | 06-06-2013 |
20130143169 | Staged Oxy-Fuel Burners And Methods For Using The Same - A burner including a central oxidant nozzle defining a central axis of the burner, and a plurality of flame holders each having an axis spaced apart from the axis of the burner, each flame holder including a high shape factor nozzle including a nozzle opening having a shape factor from about 10 to about 75, the shape factor being defined as the square of the nozzle perimeter divided by twice the nozzle cross-sectional area, and an annular nozzle surrounding the high shape factor nozzle, wherein the high shape factor nozzle is configured to be supplied with one of a fuel gas and an oxidizer gas, and the annular nozzle is configured to be supplied with the other of a fuel gas and an oxidizer gas. | 06-06-2013 |
20140220499 | Retractable Ignition System - An integrated retractable burner ignition system including a burner having an outlet face and a flow passage including a front end substantially coincident with the outlet face of the burner and a gas inlet positioned rearward from the front end of the flow passage, an igniter including a high voltage electrode surrounded by an insulator and extending beyond the insulator to form a tip end of the igniter, the igniter being mounted slidably within the flow passage, an actuator connected to a rear portion of the igniter and configured to advance and retract the igniter within the flow passage, and a slidable seal between the igniter and the flow passage, the seal being positioned rearward of the gas inlet of the flow passage and frontward of the rear portion of the igniter. | 08-07-2014 |