CN2230396Y - Low-pressure wide-range-regulating fule-oil combustor - Google Patents

Abstract

The utility model relates to an oil burner which comprises a flame tip, an injection nozzle, oil, utility piping, a rotary air register, an axial flow fan unit, an air door, a silencing shield, a housing, etc., wherein the flame tip of trumpet shape is arranged at the front end; the rotary air register which is in a grinder shape and is composed of an air blade is installed at the rear part; the injection nozzle is composed of a nozzle body, a nozzle lid, a mixing pan, an adjusting rod, etc. The injection nozzle is installed in the air register whose back is an axial flow fan, etc. The device has the advantages that the supply pressure is low, the fuel metering width reaches 1: 10, the injection nozzle of the fuel oil is atomized for a plurality of times, the fuel oil ejects reelingly and dispersedly, the burning is quick and sufficient, the efficiency reaches more than 93%, the nozzle is non-coking, the nozzle is non-clogging, therefore, the life length of the device is more than ten times longer than the present life length.

Description

The wide mode oil burner of low pressure

The utility model relates to a kind of oil gas burner, especially can regulate the wide mode oil burner of distributive value on a large scale by regulating charge oil pressure and compressed-air actuated pressure.

Oil burner kind commonly used at present is more, as steam atomizing burner, rotary cup mechanical atomizer burner, DT type mechanical atomizer burners etc., their subject matter are that fuel oil is regulated than little, can not rationally regulate oil mass with the boiler load variation, atomize simultaneously and burn also undesirable, the chimney over-emitting black exhaust is forced to increase the air distribution amount, causes the coefficient of excess air height, it is low that whole device heat is imitated, and fuel consumption is big.Also have some burners to adopt a plurality of nozzles combinations, the nozzles aperture is little, require the pressure fuel pump height, and nozzles stops up very easily, increases maintenance load, and the life-span is short.

The purpose of this utility model provides a kind ofly can regulate amount of fuel on a large scale, and the efficient height, oil supply system pressure is low and nozzle is difficult for stopping up, long, service-strong oil burner of life-span.

The purpose of this utility model realizes by following technical proposals: this oil burner is made up of flame jet, rotation air register, nozzle, fuel feeding, gas supply line, blower unit, air door, silencer cover, housing etc.One is trumpet-shaped flame jet by the refractory material moulding and places front end, a rotation air register as the mill shape is equipped with in the back, the deep bid of air register has 10 to 30 axially wind blades of rotation, after shallow bid have 6 to 20 outer radial that wind blade is opened from us rotate in cavities, nozzle of being made up of mouth body, mouth cap, mixing pan, adjusting rod etc. is loaded in the cavity of rotation air register shallow bid.On the mouth body oil is arranged, the gas passage, at mouth body front end face oil channel exit one circular groove is arranged, the place has a cavity to communicate to the middle part and with the gas passage in the axle center, there is through hole at the mixing pan center of likeness in form angular wheel, on the front end conical surface, helical groove is arranged, porose in the groove, the position in hole is corresponding with the position of mouth body 13 front end grooves, on the plane of conical surface back, protrude a handle, the porose conical surface outside that passes to of its root, the conical surface that matches with mixing pan is arranged in the mouth cap, and communicate with horn mouth that its front end is positioned at the center, the mouth cap links to each other with the mouth body and mixing pan is fixed in mouth body front end, adjusting rod is loaded in the mixing pan through hole, and its nose circle Conic nozzle extends mouth cap horn mouth place, fuel feeding, gas supply line is connected to the oil of mouth body respectively, on the gas passage.Axial fan is assembled in after the rotation air register, and air door and silencer cover are loaded on the oil burner rear portion respectively.

Maximum characteristics of the present utility model: the one, charge oil pressure is low, and it is big that fuel oil is regulated width, can change with boiler load rationally to regulate oil mass, and the highest adjusting ratio reaches 1: 10; The 2nd, fuel-oil atmozation is abundant, and burning is complete, and the efficient height reaches more than 93%, and not only fuel savings has also reduced pollution; The 3rd, nozzle oilhole latus rectum is big, and oilhole is difficult for stopping up, and charge oil pressure is low in addition, reduces equipment leakage, wearing and tearing and maintenance load, thereby improves its reliability of operation greatly.

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a nozzle longitudinal profile schematic diagram;

Fig. 3 is the vertical schematic diagram of rotation air register;

Fig. 4 is Fig. 3 right view.

As shown in Figure 1, this oil burner is made up of flame jet 1, rotation air register 2, oil pipeline 3, nozzle 4, tracheae line 5, housing 6, blower unit 7, air door 8, silencer cover 9 etc.Flame jet 1 usefulness refractory ceramics or refractory material compression molding are horn-like according to 20 °～90 ° cone angles of boiler capacity design and protract, and flame jet 1 is loaded on the oil burner front end, forms the high-temperature region herein, helps the oil gas atomizing, and burning fully.The thin handspike of rotation air register 2 usefulness is welded, as shown in Figure 3, Figure 4, be the mill shape, deep bid 16 preceding, shallow bid 17 after, deep bid 16 for axial outlet and inlet, 10 to 30 wind-guiding fins 18 along the axis rotation are arranged, we opens shallow bid 17 sides, have 6 to 16 radially the wind blades 19 of rotation from the outside to middle cavities 20.Nozzle 4 as shown in Figure 2, form by mouth body 13, mouth cap 10, mixing pan 11, adjusting rod 12 etc., mouth body 13 is cylindric, front end has external screw thread, oil passage 14 gentle passage 15 ends have internal thread, and the cone angle of mixing pan 11 conical surfaces is 90 °～160 °, and 1 to 25 helical groove is arranged on the conical surface, the direction of rotation of its groove is opposite with the rotation direction of rotation air register 2 shallow bid wind blades 19, and every slot aperture 0.3 is to 3mm.And from the oblique root that bores 2 to 20 holes to handle of conical surface lateral surface, there is internal thread mixing pan 11 centre bore rear ends.Mouth cap 10 front portions are spherical, and there is the screw thread that links to each other with mouth body 13 rear end, mixing pan 11 can be compressed on pressure mouth body 13 end faces.Adjusting rod 12 is loaded in mixing pan 11 centre bores, and its end has the screw thread that links to each other with the mixing pan centre bore, regulates its screw thread, makes the horn mouth of its nose circle Conic nozzle and mouth cap 10 form circumferential weld shape ejiction opening and is in best atomizing position.Nozzles 4 are loaded in the cavity of rotation air register 2 shallow bids along axis.Blower unit 7 comprises motor and axial fan.Silencer cover 9 is peviform, covers in the oil burner end, with the noise of decay blower fan and burning.When oil pump and air pump respectively with fuel oil, compressed air is through oil pipe line 3, air pipe 5 enters nozzles 4, compressed air enters helicla flute from the pore on its mixing pan 11 and mixes with fuel oil phase from oilhole ejection and atomize, in mouth cap 10 inner conical surfaces and adjusting rod 12 formed hybrid chambers, mix once again, bell-mouthed circumferential weld shape ejiction opening rotation from mouth cap 10 is the dispersed ejection then, the unexpected release of pressure of compressed air and expanding, make the thinner of the elaioleucite fragmentation that atomized, flame is in the rotation agitated conditions in addition, make combustion process unusual rapid and abundant, heat is imitated greatly and is improved.

Claims (3)

1, a kind of oil burner is mainly by air register, nozzle, fuel feeding, gas supply line, blower unit, air door, silencer cover and housing are formed, it is characterized in that having one to be trumpet-shaped flame jet (1) by the refractory material moulding and to place front end, a rotation air register (2) as the mill shape is equipped with in the back, the deep bid (16) of air register (2) has 10 to 30 axially wind blades (18) of rotation, after shallow bid (17) outer radial that has 6 to 20 wind blades (19) to open from us rotate to middle cavities (20), one by mouth body (13), mouth cap (10), mixing pan (11), the nozzle (4) that adjusting rod (12) is formed is loaded in the cavity (20), oily passage (14) is arranged on the mouth body (13), gas passage (15), in mouth body (13) front end face oil passage (14) exit one circular groove is arranged, the place has a cavity to communicate to postmedian and with gas passage (15) in the axle center, there is through hole at mixing pan (11) center of likeness in form angular wheel, on the conical surface of front end, helical groove is arranged, porose in the groove, on the plane of conical surface back, protrude a handle, porose the passing to of its root has the conical surface that matches with mixing pan (11) in the conical surface outside mouth cap (10), and communicate with horn mouth that its front end is positioned at the center, mouth cap (10) links to each other with mouth body (13) and mixing pan (11) is fixed in mouth body (13) front end, adjusting rod (12) is loaded in the through hole of mixing pan (11), its nose circle Conic nozzle extends the horn mouth place of mouth cap (10), and axial fan group (7) is loaded on rotation air register (2) afterwards.

2, want 1 to ask described oil burner according to right, the conical surface cone angle that it is characterized in that the mixing pan (11) of nozzle (4) is 90 ° to 60 °, and helical groove has 1 to 25, and 0.3 to 3 millimeter hole is arranged on the groove.

3, oil burner according to claim 1 and 2 is characterized in that the helicla flute on the mixing pan (11) of nozzle (4), the shallow bid wind blade (19) of its direction of rotation and rotation air register (2) opposite.

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