CN206496345U - Natural premix burner structure - Google Patents

Abstract

A kind of natural premix burner structure, comprising main air intake group, mixing body, burning shower nozzle and secondary air register group, the air inlet combination main air intake group of the mixing body, the other end links burning shower nozzle；Main air intake group includes fixed seat, air door cover plate, adjusting lever and fuel nozzle, and fuel nozzle is fixed on air inlet front end, can change the gap of air door cover plate and air inlet through adjusting lever；Secondary air register group is made up of bellows casing and adjustment cover plate, and the bellows casing and adjustment cover plate are respectively equipped with relative the first stomata and the second stomata in position, to aid in supplementing air inflow.Fuel is being mixed by the bundles of flame of burning nozzle end burning after body is sufficiently mixed in advance with air, by the palisade burner of angularly arranged radially, forms the radial flame for being dispersed evenly to furnace wall.

Description

Natural premix burner structure

Technical field

The utility model is related to a kind of burner structure, and referring in particular to one kind has at least one set of air door, can improve burning effect The burner structure of rate.

Background technology

Burner（Burner）It is fuel and air is sprayed the device general designation for carrying out mixed combustion with a rational proportion.Through Boiler and industrial furnace of combusting coal fines, liquid fuel and gaseous fuel etc. are commonly applied to, its simple principle heated is to burn Fuel is directly sent to combustion chamber and burnt by device, and the heat produced using fuel combustion reaches heat effect.

In burner operation, whether the efficiency of heating burns completely depending on fuel, and whether fuel burns completely Key then depend on whether fuel mixes fully with air, the especially fuel supplying mode of injecting type, in the continuous active of fuel In the case of feeding, in order to avoid cost is wasted caused by fuel combustion not exclusively, whether the supply of air seems special enough It is important.

In view of this, the mixed effect of fuel and air how is lifted, fuel can fully be burnt under enough oxygen, subtracts The use cost of the possibility, further reduction fuel of low boiler formation crock, becomes the problem of must being solved for related dealer.

Utility model content

The problem of to be set forth in solution encountered in actual use experience, the utility model, which provides one kind, can improve burning effect The spontaneous combustion premix burner structure of rate.

A kind of natural premix burner structure provided by the utility model, including main air intake group, mixing body and Burn shower nozzle, and the mixing body is a hollow body, and the air inlet of body one end combines once air door group, and the other end then links Burn shower nozzle；The main air intake group is made up of fixed seat, air door cover plate, adjusting lever, fuel nozzle；Fuel nozzle is fixed on Mix air inlet front end set by body；Air door cover plate is movably arranged in fixed seat, and air door cover plate is changed with entering through adjusting lever The gap of gas port；The burner further includes secondary air register group, is made up of the adjustment cover plate of bellows casing and activity, the bellows Shell has made the first stomata, and the adjustment cover plate makes second stomata relative with the first stomata position, when rotation adjustment cover plate Angle, changes perforation size that the first stomata and the second stomata formed to aid in supplement air inflow；Set on the burning shower nozzle There is equiangularly arranged uniform palisade burner.

Through the implementation of the air door group of the utility model first and second, fuel is sufficiently mixed in advance with air in mixing tube body, Then by the bundles of flame of burning nozzle end burning, through the palisade burner of angularly arranged radially, form radial uniform scattered It is distributed in the flame of furnace wall.

Brief description of the drawings

Fig. 1 systems dimensional structure diagram of the present utility model.

The dimensional structure diagram of another angle of Fig. 2 systems the utility model.

Fig. 3 systems the utility model implements view.

Label declaration：

10 main air intake groups；

11 fixed seats；

12 air door cover plates；

13 adjusting levers；

14 fuel nozzles；

20 mixing bodys；

21 air inlets；

30 burning shower nozzles；

31 palisade burners；

40 secondary air register groups；

41 bellows casings；

411 first stomatas；

42 adjustment cover plates；

421 second stomatas；

43 perforation；

50 combustion furnaces.

Embodiment

To enable architectural feature of the present utility model, technological means, effect and other features to be further appreciated that, hereby with compared with Good embodiment simultaneously coordinates schema detailed description as follows.

Refer to shown in Fig. 1,2 and Fig. 3, be the preferable reality for describing the natural premix burner structure of the utility model in figure Example is applied, the utility model burner structure is mainly made up of main air intake group 10, mixing body 20 and burning shower nozzle 30；Should Mixing body 20 is a hollow body, and the air inlet 21 of body one end combines once air door group 10, and the other end then links burning Shower nozzle 30, burning shower nozzle 30 makes the palisade burner 31 of more several radial openings；Burner structure of the present utility model is further included Secondary air register group 40, burner is combined on the body of combustion furnace 50 by the secondary air register group 40.Fuel is in mixing body 20 It is natural to be pre-mixed with air, the flame uniformly spread is finally burnt into palisade burner 31.

Referring again to shown in Fig. 1 and Fig. 2, foregoing main air intake group 10 is by fixed seat 11, air door cover plate 12, adjusting lever 13rd, fuel nozzle 14 is constituted；Fuel nozzle 14 can the fuel such as external LNG, fuel oil, gas, be fixed on by fixed seat 11 mixed The front end of air inlet 21 of body 20 is closed, during operation, fuel nozzle 14 sprays into fuel into air inlet 21；The activity of air door cover plate 12 It is arranged in fixed seat 11, the gap of air door cover plate 12 and air inlet 21 can be changed through adjusting lever 13, for adjusting entrance The air capacity of air inlet 21；Secondary air register group 40 is mainly 42 groups of adjustment cover plate by the movable rotation of bellows casing 41 and one Into bellows casing 41 has made the first stomata 411, and adjustment cover plate 42 makes second stomata relative with the position of the first stomata 411 421, the angle of cover plate 42 is adjusted by rotation, thus it is possible to vary the first stomata 411 and the perforation 43 that the second stomata 421 is formed are big It is small, as auxiliary main air intake group 10, supplement not enough air inflow.

Referring again to being to describe mixing body 20 and main air intake group 10, secondary air register group 40 and burning shown in Fig. 3, in figure The combination and structural relation of shower nozzle 30；It can be seen that by schema, fuel is entered in mixing body 20 by air inlet 21, and air is then Enter to mix by air door cover plate 12 and the gap of air inlet 21 and be pre-mixed in body 20 with fuel, then in burning shower nozzle 30 The bundles of flame of end burning, through the palisade burner 31 of angularly arranged radially, forms the radial fire for being dispersed evenly to furnace wall Flame.In principle, based on the main gap of air door cover plate 12 to adjust main air intake group 10 of air input, not enough air capacity is matched somebody with somebody again Close regulation secondary air register group 40 to supply, make burner of the present utility model can ensure that the supply of air capacity in operation according to this Fully.

Understand that the utility model has reached default purpose, can be utilized really by industry, really via above-described embodiment explanation Patent requirement is met, whence proposes patent application.But, structure, ratio, size, quantity etc. depicted in embodiment institute accompanying drawings, Only coordinate specification disclosure, be not limited to the utility model practical range, therefore protection model of the present utility model Enclose to work as and be defined depending on those as defined in claim.

Claims (1)

1. a kind of natural premix burner structure, including main air intake group, mixing body and burning shower nozzle, the mixing body is One hollow body, the air inlet of body one end combines once air door group, and the other end then links burning shower nozzle；It is characterized in that：

The main air intake group is made up of fixed seat, air door cover plate, adjusting lever, fuel nozzle；Fuel nozzle is fixed on mixing Air inlet front end set by body；Air door cover plate is movably arranged in fixed seat, and air door cover plate and air inlet are changed through adjusting lever Gap；

Secondary air register group is provided with the middle part of the mixing body, the secondary air register group is by bellows casing and the adjustment cover plate institute group of activity Into the bellows casing has made the first stomata, and the adjustment cover plate makes second stomata relative with the first stomata position, when rotation is adjusted The angle of whole cover plate, changes perforation size that the first stomata and the second stomata formed to aid in supplement air inflow；

The burning shower nozzle is provided with equiangularly arranged uniform palisade burner.