LOW ENVIRONMENTAL POLLUTION AND HIGH EFFICIENCY GAS BOILER FOR HOME BY USING RICH-LEAN COMBUSTION GAS BURNER

摘要

PURPOSE: A low environmental pollution and high efficiency gas boiler for home is provided to reduce the generation of pollutants and to improved the efficiency of a boiler. CONSTITUTION: A gas boiler is comprised of a gas nozzle(4) for injecting fuel letting through a fuel supply hole; plural bunsen rich combustion slits(5) installed on a burner support(8) to let the injected gas; a premixed lean combustion slit(2) using a porous knitted metal fiber mat as a combustion surface material; a screening plate(6) installed on one side of the burner support to contact one face with a gas fuel inlet hole of the rich combustion slit and the premixed lean combustion slit and prepared with a hole to let in gas fuel and first air from each gas nozzle; and an air charging plate(7) installed on a lower end of the burner support and prepared with plural air holes(71). Accordingly, the generation of pollutants is suppressed and the efficiency of the boiler is improved.