| 摘要 |
Abstract of the Disclosure A gas burner apparatus for discharging a mixture of fuel gas. air and flue gas into a furnace space of a furnace herein the mixture is burned and flue gas having a low content of nitrous oxides and carbon monoxide is formed is provided. The burner tile includes at least one gas circulation port extending though the wall of the tile. The interior surface of the wall of the tile includes a Coanda surface. Fuel gas and/or flue gas conducted through the gas circulation port follows the path of the Coanda surface which allows more flue gas to be introduced into the stream. The exterior surface of the wall of the tile also includes a Coanda surface for facilitating the creation of a staged combustion zone. Also provided are improved burner tiles, improved gas tips and methods of burning a mixture of air, fuel gas and flue gas in a furnace space. maingeOKC_2312244_ IDOC ,-10 56--, 60 27 50____.,_ 70 14 j1l 70 58 162 17 9 60 36 164 168 10j- 164 36 34 167 ' - 34 330 54) 21g 38 24 18 3 22 >220 20- - .- 160 206' -126 2221 46 202 - .! 20 8 1 200- 20 -- -44 204--- 204 *--4 28- 198--32 26 42- 44 /220 |
