Low NOX gas combustion ware

The utility model discloses a low NOX gas combustion ware, including gas fuel passag, the air is taken over, positive whirl air duct, air duct is flowed in the derotation, the combustion zone, the combustion zone periphery sets up the coal gas flame holder, combustion zone and gas fuel passag, positive whirl air duct, the derotation is flowed air duct and is communicated with each other, outwards be gas fuel passag in proper order from the center, positive whirl air duct, air duct is flowed in the derotation, it flows the blade to set up the coal gas sidespin in the gas fuel passag, set up the positive whirl blade of air side in the positive whirl air duct, it flows the blade to set up the derotation of air side in the derotation stream air duct, positive whirl air duct, the derotation is flowed air duct and is all communicated with each other with the air takeover, set up recycling flue gas spout on the coal gas flame holder, recycling flue gas spout connects the gas recirculation interface through the intercommunication. The utility model discloses guarantee that the rich fuel of gas in the high -temperature region burns, reduce combustion zone combustion temperature simultaneously, reduced the concentration that NOX produced.