LOW-NOX GAS BURNER WITH WIND BOX, WHICH IS CAPABLE OF SUPPLYING EQUALLY COMBUSTION AIR FORCIBLY SENT FROM BLOWER TOWARD FURNACE

摘要

PURPOSE: A low-NOx(Nitrogen Oxide) gas burner with a wind box is provided to prevent generation of the NOx and to secure perfect combustion by supplying equally the combustion air forcibly sent from a blower toward a furnace. CONSTITUTION: A low-NOx(Nitrogen Oxide) gas burner with a wind box(20) is composed of a cylindrical frame panel(30) for receiving and guiding the combustion air forcibly sent from a blower through the wind box to a fire room; a fuel supply pipe(40) installed longitudinally in the central part of the frame panel and extended to the fire room with passing a front end through a lower part of the frame panel; a nozzle disposed at the front end of the fuel supply pipe to inject fuel; and a plate-shaped diffuser arranged at the lower part of the frame panel to diffuse and supply the combustion air toward the nozzle and perforated with a plurality of air-supply holes. The wind box comprises an air supply duct(21) having one end connected with the blower and the other end laterally communication-connected to an opening unit(31) perforated at the side of a wall surface of the frame panel; a funnel-shaped rectifying member(22) disposed in the frame panel to guide the air input through the air supply duct toward the diffuser with covering around the fuel supply pipe; and a dividing plate(23) installed and set up at the opposite side of the opening unit of the frame panel to prevent an air current discharged out through the fuel supply pipe from joining at the upper part of the rectifying member again. The diameter of the rectifying member gets narrower toward the air supply direction.