The existing furnace burner can be divided into upper and lower two types according to the way of primary ventilation.Wherein, the primary air required for the lower inlet burner enters the ejector tube from below the surface of the furnace.Low air inlet burner has high efficiency of primary air diversion, fully premixed, but when switching cabinet door, it is easy to extinguish small fire, if the cabinet does not open the air inlet, then the primary empty.The potential danger of not breathing enough.
The primary air required by the upper air burner enters the jet pipe from the top of the furnace surface.The limitation of the burner's primary intake structure requires its overall compact structure, simplified structure of ejector tube and mixing chamber, insufficient primary air and premixing, resulting in weak flame and low thermal efficiency, which limits the improvement of the burner's power and cannot be satisfied.High heat cooking requirements.In the existing market, because of the limitation of its structure, it is impossible to have a long ejector pipe like the downdraft.Problems such as insufficient primary draft air, insufficient premix space and inability to completely close the panel limit the energy efficiency and working conditions of the upper tuyere.
In the existing technology, in order to increase the number of ejector tubes and nozzles and increase the combustion load, many designs of upper air burner have been carried out to simplify the injection structure of multi-nozzle burner and solve the problem of low power of upper air burner.Spiral jet tube is used in upper air burner to improve the jet effect.
In addition, because the air burner tube ejector nozzle, and the burner cover over the panel, the panel at the top of the accumulation of a lot of parts also brings the panel clean great difficulties, can appear sometimes nozzle clogging problem, it is necessary to design a air burner, can be realized on the basis of the structure is compact, improve the ejection ability.In the meantime, clean and convenient, can prevent effectively fire prevention cover is blocked and nozzle is blocked.
Technical implementation elements:
Upper air burner with compact structure and good injection effect.
Provide a clean and convenient upper air outlet according to the above technical conditions.
Upper air burner that is not easy to block nozzle according to the above technical status.
The technical solution is:
The upper wind burner comprises an upper wind burner and an upper wind burner.The liquid tray is provided with at least two separately arranged nozzle seats, and each nozzle seat is provided with at least a first nozzle and a second nozzle.The mixing air seat is arranged on the upper end surface of the liquid holder.The upper end surface of the air mixing seat is provided with an annular inner mixing tank and an outer mixing tank located outside the inner mixing tank.The inner mixing tank has at least two inner inlet holes, and the outer mixing tank has at least two outer inlet holes.At least two transverse arranged internal ejector pipes and two transverse arranged inlet holes are arranged on the lower surface of the mixing air seat.The outlet end of the internal ejector pipe is connected with the internal inlet port, and the inlet end corresponds to the above mentioned first nozzle. The outlet end of the external ejector pipe is connected with the above mentioned external inlet port, and the inlet end corresponds to the above mentioned second nozzle.A fireproof cover is arranged on the mixing seat to form a fire hole and a fire hole.The fire hole is connected with the external mixing tank.
