CN1113307A - Combustion apparatus - Google Patents

Abstract

The present invention provides a liquid fuel gas and a combustion apparatus which has a burner part for burning gas vaporized at a vaporizing part and ejected from a nozzle and a burner receiving seat for recovering heat from the burner part are provided; the vaporizing part, a mounting part of the nozzle and an opening for inducing primary air with the aid of ejection action of gas ejected from the nozzle are unitarily formed in the burner receiving seat; and the burner part is mounted on the burner receiving seat so as to cover the opening and a throat is disposed in the burner part. Accordingly, in this combustion apparatus, the vaporizing part is not influenced by the throat, and the whole of the burner receiving seat can be designed into a compact shape, thus enabling production cost and ignition time to be improved.

Description

Combustion apparatus

The present invention relates to make liquid fuel gasification, make this life (Bunsen) formula burner of burning from the nozzle ejection.

Had multiple this type of burner at present, aftermentioned Figure 4 shows that a wherein example, but, the type device has been constituted and can save electric power.Specifically, electromagnetic pump 52 is installed on food tray 51, an end that send oil pipe 53 is linked to each other with electromagnetic pump 52, the other end that send oil pipe 53 is linked to each other with cylindric gasifier 54, oil is delivered in the vaporizer 55 that is made of gasifier 54 and gasifier lid 54A from food tray 51 with above-mentioned electromagnetic pump 52.

Above-mentioned vaporizer 55 constituted trunnion 56 is enclosed in vaporizer central authorities, in the vaporizer perisporium, bury heater 57 underground, and the passage 59 that trunnion 56 is communicated with nozzle 58 in the opposition side setting of sending oil pipe 53 inlets of vaporizer 55.

On said nozzle 58, install back oil pipe 60, the other end of this oil return pipe 60 is linked to each other with solenoid 61.In addition, the oil return pipe 60 that is positioned at solenoid 61 other ends is communicated with food tray 51, on solenoid 61, is provided with and carries out the shank 62 that nozzle bore 63 opens and closes.

And, the top that is formed in the gasifier lid 54A that the peristome for cover gasifier 54 is provided with is provided with and its close contact, and the burner portion 66 with the outlet 65 of above-mentioned trunnion 56 covers is used in burner portion, the flange 68 on flame 67 heating and gasifying devices 54 tops that form on 66 perisporiums.

In above-mentioned structure, with heater 57 vaporizer 55 is heated to set point of temperature, the oil that enters from the inlet that send oil pipe 53 is gasified the process that arrives passage 59.The combustion gas that makes gasification is by the mobile downwards nozzle 58 that arrives of the above-mentioned passage 59 that is positioned at the vaporizer bottom.

So, when gasifier 54 reaches set point of temperature, 62 of above-mentioned shanks open and the combustion gas that makes gasification from nozzle bore 63 ejections.Gasification burning flows towards the trunnion 56 that is arranged on above-mentioned gasifier central authorities with strong imposing manner, corresponding therewith, outlet 65 enters in the burner portion 66 and mixes from above-mentioned trunnion lower end 69 and 58 indrawn primary airs of nozzle from trunnion, generates combustion flame 67 in the periphery igniting of burner portion 66 and burns.

In addition, when making burned flames 67 heating of the upper flange 68 of gasifier 54, gasifier lid 54A is heated because of the conduction heat from burner portion 66, because of such recuperation of heat effect, even not to heater 57 energisings, gasification, and combustion is continued, form spontaneous combustion exactly, reach saving electric power.

Yet, still there are the following problems for above-mentioned structure, be exactly to form gasifier 54 by the periphery of trunnion 56 is surrounded, gasifier 54 is maximized, thereby when being difficult to make gasifier 54 to reach small compactization, manufacturing cost is improved, and, because the thermal capacity of gasifier 54 is increased, when the running beginning gasifier 54 being heated to set point of temperature needs the time like this, and required time prolongs when making the arrival igniting exactly.

In addition, also there is the seal problem be difficult to guarantee in the gasifier 54, therefore, when in fact making these gasifier 54 commercializations, need to adopt many pipes of joint, itself and trunnion 56 cast solids etc. are formed the complicated processing of gasifier 54, in addition, when topped gasifier covers 54A on gasifier 54 pipe not being cast into, need apply encapsulant betwixt, thereby when manufacturing cost was improved, the deviation when also Chang Yin makes in batch fluctuateed and produces gas leakage or distortion, promptly can not fully guarantee product quality problem.

In addition, owing to the shape that will surround the gasifier 54 that trunnion 56 forms constitutes cylindrical shape, make work be difficult to carry out for making oil gasization, inhibition generate tar filling gasification element in vaporizer smoothly, thereby the gasification element is selected in existence, be restricted, can not fully improve problems such as tar.

In addition, in above-mentioned structure, since nozzle 58 away from be positioned at gasifier 54 below, form gasifier 54 and 58 temperature of nozzle and differ very big, because the temperature of nozzle 58 is low, and be positioned at the below of vaporizer 55, form the top that the high-temperature gasification combustion gas rests on vaporizer 55, the combustion gas that low temperature is not gasified totally, or oil flows to the situation of nozzle 58 by lower passage 59, makes gasification burning be difficult to flow, and because the temperature of low temperature combustion gas, nozzle 58 is low, gasification burning is added in the nozzle 58 through passage 59, thereby produce the tarring problem that is prone to.

Therefore, even to vaporizer 55 or from vaporizer 53 to nozzle in the passage 59 on 56 filling promote gasification with the gasification element, because gasifier 54 is formed the toroidal that surrounds trunnion 56, also be difficult to the such gasification element of filling in vaporizer, thereby select the gasification element to be restricted, exist the problem that tar performance etc. can not fully be improved.

In addition, in above-mentioned structure, if more make nozzle 58 the primary air soakage be increased away from gasifier 54, yet, there is above-mentioned tarring problem, be subjected to make the excessive restriction in position of nozzle 58, therefore, because it is enough big to make air by the relation decision of nozzle 58 and trunnion 56 entry positions suck area, thereby exists because of not sucking enough burning primary airs, the problem that the combustibility of burner is restricted.And, because trunnion 56 and gasifier 54 formed one, because of the restriction that is subjected to this shaping etc., trunnion 56 lower shapes are defined as linearity, make at because of being subjected to the considerable influence of trunnion shape thereby exist, the primary air amount is increased, subtract noise reduction sound countermeasure and be difficult to the fully problem of enforcement.

Therefore, the present invention is just in order to address the above problem, when its primary and foremost purpose, performance are saved the such advantage of electric power because of reclaiming heat, and shorten the duration of ignition, the 2nd purpose is by making handling easeization and small compact reduction manufacturing cost, the 3rd purpose can suppress the tarring of combustion gas, the 4th purpose, primary air can be sucked and open greatly, combustibility is improved with opening.

Be the gasification portion that makes fuel gasification that the present invention includes that achieves the above object, heat the heater of this gasification portion, make nozzle in the combustion gas ejection of gasification portion gasification, make from the burner portion of the fuel gas buring of nozzle ejection, and the burner seat that said burner portion is maintained, and the formation of described burner seat is the gasification portion that forms in flat member, make autopneumatolysis portion combustion gas ejection the nozzle installation portion and from gasification portion to the nozzle installation portion on passage, meanwhile, also form to utilize the opening that sucks primary air from the jet-action of said nozzle ejection combustion gas, burner portion covered on the said burner seat again and this opening also will be become cover, and trunnion is configured in this burner portion.

In addition, its formation can be when the said burner seat is disposed along general horizontal direction, on the burner seat, form the nozzle installation portion, below the said burner seat, form gasification portion, and be located at the nozzle below that is installed on the nozzle installation portion.

Perhaps its formation can be to form in the burner installation portion on the periphery on the said burner seat, form the nozzle installation portion in the central in the portion, the gasification portion that will be positioned on the straight line is formed between nozzle installation portion and burner installation portion, along this gasification portion and burner installation portion heater is set.

Perhaps, its formation can be on the periphery of said burner seat, install heater in, form the nozzle installation portion in the central in the portion, and the gasification portion that will be communicated with by passage and this nozzle installation portion is when said nozzle installation portion one side forms, forms primary air and sucks and use opening by keep the flank that extends to the nozzle installation portion from the burner installation portion on a side opposite with it.

Owing to being formed in, the present invention forms gasification portion on the burner seat as mentioned above, when nozzle installation portion and primary air suck with opening, dispose trunnion in the burner portion on being located at this burner seat, not influenced by trunnion gasification portion is designed to small compact shape, can reduce cost, improvement and shortening are in the time of the duration of ignition, because of can be in described gasification portion, adopt on the nozzle installation portion processing methods such as then carrying out hole processing is forged in executions such as brass, thereby can be when adopting simple processing side that cost is reduced, can stably provide and guarantee airtight high quality of products, not worry the influence that the deviation fluctuation when making in batch causes.

In addition, make the nozzle that is installed on the nozzle installation portion be positioned at gasification portion top owing to constitute, successfully flow thereby can make to the nozzle that is positioned at above the gasification portion at the gasification burning of gasification portion gasification, and because this gasification burning comes to nozzle flow with the high-temperature gasification combustion gas that is gasified totally, thereby can make gasification burning that tarring takes place hardly, the tar performance is improved.

In addition, because gasification portion is formed between the burner portion and nozzle installation portion that are provided with heater of burner seat, autopneumatolysis portion and be installed in the nozzle that the conduction heat of the burner portion on the burner installation portion will be installed on the nozzle installation portion and maintain high temperature can be used for, thereby the tarring that gasification burning liquefaction etc. causes can be prevented to cause because of nozzle temperature is low.

In addition, make the gasification portion that between said burner installation portion and nozzle installation portion, the forms shape that is in line owing to constitute, the portion of reporting to the leadship after accomplishing a task at gasification portion and nozzle installation portion is communicated with both, can promote the gasification member to the filling of gasification portion easily, also can freely select the material of this promotion gasification with member, when thereby gasification performance can be improved, also can improve the tar performance.

In addition, owing to constitute nozzle installation portion and primary air suction are formed on the burner seat with opening, the nozzle temperature that the conduction heat from burner portion that can obtain with the burner installation portion from the burner seat will be installed on the nozzle installation portion is kept higher, can not worry that nozzle temperature is low and primary air sucked open greatly with opening, can not make the primary air suction opening that all shapes of burner seat increase and formation is enough big, when thereby small compactization can be reached, guarantee good combustibility.

In addition, owing to constitute by staying the flank that ends extension from tabular burner installation portion to the nozzle installation portion and form above-mentioned primary air suction opening, can be not only in gasification portion one side, also will be by this flank from the heat that is installed in the burner portion on the burner installation portion to the nozzle transmission in this flank one side, with this as causing the low countermeasure of facilitating tarring of nozzle temperature because of easily being cooled off by primary air, can be for a long time that this temperature maintenance is enough high, thus keep good tar performance.

Simple declaration to accompanying drawing.

Fig. 1 is the profile of one embodiment of the invention burner,

Fig. 2 is the stereogram of an above-mentioned burner part,

Fig. 3 is the vertical view of above-mentioned burner burner seat,

Fig. 4 is the profile of traditional combusting device.

Followingly describe with reference to Fig. 1-3 pair embodiment of the invention.1 is food tray, 2 for being installed in the electromagnetic pump on this food tray 1,3 is the oil pipe that send that links to each other with electromagnetic pump 2,4 are and the gasification portion that send oil pipe 3 to be connected, make the oil gasization of sending here from inlet 4A, portion within it, but filling promotes the gasification key element (not shown) of gasification usefulness as required, can carry out the replacing of this gasification key element or carry out the cleaning of vaporizer 6 in the gasification portion by unloading the gasification lid 5 that screw thread is fixed on the one end opening.7 is at the connection nozzle installation portion 8A of the other end top of vaporizer 6 formation and the passage of vaporizer 6.8 for being threaded in the nozzle on the said nozzle installation portion 8A, and the gasification burning that can make gasification in vaporizer 6 is from jet expansion 9 ejections.10 is along the solenoid of the axis configuration of said nozzle 8, and it is arranged in the return duct 11 that is communicated with nozzle installation portion 8A, constitutes to drive to open or close the shank 12 that jet expansion 9 cleans.

As Fig. 2, shown in 3,13 for being formed on above-mentioned gasification portion 4 and nozzle installation portion 8A the circular tabular burner seat on its wall, ladder is set on its periphery top, forms burner installation portion 14, the heater 15 that above-mentioned gasification portion 4 is heated to set point of temperature is installed in below this burner installation portion being.This heater 15 by it being embedded in the groove 13A that the burner seat forms below, and making it sting tight and forms fixed installation, as can be seen from Figure 2, its two ends is drawn along gasification portion 4.

On the central authorities of said burner seat 13, form in the said nozzle installation portion 8A the above-mentioned gasification of formation portion 4 below nozzle installation portion 8A.And, as Fig. 2, shown in 3, its formation is the periphery from burner seat 13, and is linearly towards nozzle installation portion 8A, and makes and intersect with it and form above-mentioned gasification portion 4, form above-mentioned passage 7 in the portion of reporting to the leadship after accomplishing a task, and make gasification cover 5 outer Monday of the sides that are positioned at burner seat 13 with nozzle installation portion 8A.In addition, the periphery of nozzle installation portion 8A is processed to form primary air and sucks with opening 17 by gasification portion 4 under the face and the flank 16 that forms radially between the burner installation portion 14 of the opposite side of this gasification portion 4 and nozzle installation portion.

18 for to be positioned on the burner installation portion 14 of said burner seat 13, and the trunnion with said nozzle 8 tops cover is processed to form with the metal tube pull and stretch, in order to suck primary air easily, its underpart constituted circular-arc expansion open form shape.19 for being installed on the said burner installation portion 14, burner portion with trunnion 18 covers forms a plurality of glory holes 20 on its perisporium, can make the gasification burning burning from the nozzle ejection, be fixed on the burner installation portion 14 with screw 21, thereby trunnion 18 is clamped.

In above-mentioned structure, make the oil of sending by electromagnetic pump 2 enter vaporizer 6 by sending oil pipe 3.Heater 15 is heated to set point of temperature with gasification portion 4, makes the oil gasization in the vaporizer 6.Gasification oil is moved along the direction of straight line to nozzle 8, arrive nozzle 8 by passage 7.At this moment, preferentially the high-temperature gasification combustion gas is delivered to nozzle 8 through passage 7.At this state, drive shank 12 with solenoid 10 and produce opening operation, gasification burning is from jet expansion 9 ejections.In view of the above, the primary air inhalator around nozzle 8 sucks primary air with opening 17, makes in trunnion 18 and burner portion 19 and mixes, and lights a fire on the periphery of burner portion 19, produces combustion flame 22, after, burn away with same action.

In addition, because of absorbing from the conduction heat of burner 19 with from the heat of the combustion flame 22 that is absorbed by heat recovery section 13B, burner seat 13 becomes high temperature, make with its all-in-one-piece gasification portion 4 and also become high temperature, therefore, though constitute the igniting back not to heater 15 energisings also can spontaneous combustion the power conservation type burner.

And, owing to constitute burner seat 13 is formed tabular, with gasification portion 4, when nozzle installation portion 8A and primary air suck with opening 17 formation one, trunnion 18 and burner portion 19 are installed on this burner seat 13, therefore can make gasification portion 4 burner is not designed to small compact by trunnion about 18.

In addition, owing to can be respectively form above-mentioned gasification portion 4 with processing from the outer peripheral portion of burner seat 13, from top formation nozzle installation portion, can form with the processing method of carrying out the simple of hole processing after execution is forged to the contour contact of brass sheet material and in short-term, finish and have gasification portion 4, nozzle installation portion 8A and primary air suck the burner seat 13 with opening 17, and the temperature height the when temperature that can make gasification portion 4 is material than with aluminium, anti-tar in the time of can not only improving common use, and have when adhering to tar, loose because of it being burnt, the further raising of temperature made the effect that possesses cleaning function.And because can be with being processed to form gasification portion 4 as mentioned above, its open-ended 4B becomes the minimum part of the periphery of burner seat 13, makes topped gasification lid 5 at this opening 4B keep sealing easily, even make in batch, also guarantees to stablize air-tightness.

In addition, owing to gasification portion 4 is formed on the inboard of the burner installation portion 14 of burner seat 13 peripheries, heater 15 is installed on the said burner installation portion 14, become make gasification portion 4 and burner installation portion 14 when igniting by heater 15 evenly in the heating, evenly be heated to high temperature from the conduction of burner portion 19 heat with from the heat of combustion flame 22 in the burning, when can bring into play good gasification performance, as mentioned above, owing to the 13 all formation miniaturizations of burner seat can be heated to gasification temperature rapidly during igniting.

In addition, owing to make the nozzle 8 that is installed on the nozzle installation portion 8A be positioned at gasification portion top, thereby it is successfully mobile towards nozzle 8 successively from the high-temperature region naturally to become the gasification burning that makes autopneumatolysis portion 4, and, comes this gasification burning of formation towards nozzle 8 streams because becoming the high-temperature gasification combustion gas that is gasified totally, therefore, tarring takes place in gasification burning hardly, and the tar performance is improved significantly.

In addition, owing to gasification portion 4 is formed on its of burner seat 13 is provided with between the burner installation portion 14 and nozzle installation portion 8A of heater 15, can gasification portion 4 and the nozzle 8 that is installed on the nozzle installation portion 8A be maintained high temperature with heater 15 and the conduction heat that is installed in the burner portion 19 on the burner installation portion 14, thereby can make because of the nozzle temperature tarring that impels gasification burning liquefaction etc. to cause that descends and prevented.

In addition, because the gasification portion 4 of the shape that is in line is formed between said burner installation portion 14 and the nozzle installation portion 8A with being in line shape, the part of reporting to the leadship after accomplishing a task at gasification portion 4 and nozzle installation portion 8A makes this both connections, and the opening 4B that makes this gasification portion 4 is positioned on the periphery of burner installation portion 14, thereby can make to the filling of gasification portion or unload the gasification element when carrying out easily, also can freely select the material of gasification element etc., gasification performance is improved.

In addition, because nozzle installation portion 8A and primary air suction are formed on the burner seat 13 simultaneously with opening 17, therefore, can be with higher the temperature maintenance that is installed in the nozzle 8 on the nozzle installation portion 8A from the conduction heat that is installed in the burner portion 19 on the burner installation portion 14, because of not worrying that nozzle temperature descends, primary air can be sucked and open greatly with opening 17, its result can not make burner seat 13 all changes form the primary air suction enough big with opening 17 greatly, when thereby small compactization can be reached, guarantee good combustibility.

In addition, because making the flank 16 that extremely extends from burner installation portion 14 to nozzle installation portion 8A form above-mentioned primary air by reservation sucks with opening 17, therefore can be not only through gasification portion 4 one sides, also through these flank 16 1 sides, by this flank 16, from the heat transfer that is installed in the burner portion 19 on the burner installation portion 14 to nozzle 8 conduction to as preventing because of easily being cooled off by primary air, cause the low countermeasure that reaches the tarring degree of nozzle 8 temperature, can for a long time it be maintained fully high temperature, keep good tar performance, and the heat that becomes above-mentioned flank 16 spontaneous combustion in the future device portion 19 not only is delivered to nozzle installation portion 8A, also be delivered to gasification portion 4, can be simultaneously equably with the temperature maintenance of gasification portion 4 at high temperature.In addition,, can not only reach save spaceization by mounting temperature sensor on this flank 16, and can near the temperature of reliable determination nozzle.

In sum, burner of the present invention is owing to form tabular with the burner seat, with gasification portion, nozzle installation portion and primary air suck and form one with opening, can make gasification portion not influenced by trunnion and the burner seat is designed to small compact, cost is reduced when improving the duration of ignition, can adopt execution forgings such as brass for forming above-mentioned gasification portion and nozzle installation portion, then carry out processing method manufacturings such as hole processing, when adopting simple processing method that cost is reduced, deviation fluctuation when cause is made in batch causes can not guarantee that airtight situation has not existed, thereby high quality of products can be provided.

In addition, owing to make the nozzle that is installed on the nozzle installation portion be positioned at gasification portion top, can make at the gasification burning of gasification portion gasification and flow to the nozzle that is positioned at above the gasification portion smoothly, and becoming the high-temperature gasification combustion gas that has been gasified totally flows to nozzle, this is the tarring of generating gasification combustion gas hardly, and the tar performance is improved.

In addition, because gasification portion is formed between the burner installation portion and nozzle installation portion that are provided with heater of burner seat, can be used for autopneumatolysis portion and be installed in the nozzle that the conduction heat of the burner portion on the burner installation portion will be installed on the nozzle installation portion and maintain high temperature, the tarring that gasification, and combustion liquefaction etc. is caused is prevented.

In addition, owing to make the linearly gasification portion that is formed between said burner installation portion and nozzle installation portion both are communicated with in the part of reporting to the leadship after accomplishing a task of gasification portion and nozzle installation portion, promote the member of gasification usefulness easily to the filling of gasification portion, also can freely select the material of this member, when thereby gasification performance can be improved, also can improve the tar performance.

In addition, owing to be formed on nozzle installation portion and primary air suction opening on the burner seat, the nozzle that the conduction heat from burner that can obtain with the burner installation portion from the burner seat of burner seat will be installed on the nozzle installation portion maintains higher temperature, therefore, do not worry the nozzle temperature reduction and primary air can be sucked opening greatly with opening, primary air can be sucked again with opening and form enough greatly and need not the burner seat is totally enlarged, thereby can guarantee good combustibility when reaching small compactization.

In addition, owing to form above-mentioned primary air suction opening by staying the flank that extends from tabular burner installation portion to the nozzle installation portion, can be not only from gasification portion side, also from then on the flank side by this flank from the heat that is installed in the burner portion on the burner installation portion to the nozzle transmission, can for a long time nozzle temperature be kept enough height as preventing because of easily being cooled off the countermeasure that the nozzle that is low temperature produces tarring with this, keep good tar by primary air.

Claims (12)

1, burner, comprise the gasification portion that makes fuel gasification, heat the heater of this gasification portion, make nozzle in the combustion gas ejection of gasification portion gasification, make from the burner portion of the fuel gas buring of nozzle ejection, and the burner seat that said burner portion is maintained, it is characterized in that the said burner seat is formed on its flat structure body and form gasification portion, when making from the nozzle installation portion of the combustion gas of this gasification portion ejection and passage from gasification portion to the nozzle installation portion, form and utilize the opening that sucks primary air from the jet-action of said nozzle ejection combustion gas, with burner portion cover on the said burner seat, and make it simultaneously with this opening cover, in this burner portion, dispose trunnion.

2, device according to claim 1, when it is characterized in that said burner seat along continuous straight runs disposed, integratedly the nozzle installation portion is formed on this burner seat above, gasification portion is formed on a side below the burner seat, and is located at the below that is installed in said nozzle installation portion top nozzle.

3, device according to claim 1, it is characterized in that on the said burner seat, forming in the burner on the periphery, portion forms the nozzle installation portion in the central, and between nozzle installation portion and burner installation portion, form gasification portion, heater is set along this gasification portion and burner installation portion.

4, device according to claim 3 is characterized in that above-mentioned gasification portion is formed linearity, and is communicated with making with the nozzle installation portion with the part of reporting to the leadship after accomplishing a task of nozzle installation portion.

5, device according to claim 1, it is characterized in that on said burner seat periphery, forming in the burner installation portion, portion forms the nozzle installation portion in the central, when the gasification portion that links to each other with this nozzle installation portion by passage is formed along said nozzle installation portion one side, form primary air suction opening in a side opposite with it.

6, device according to claim 5 is characterized in that forming above-mentioned primary air suction opening by staying the flank that extends from the burner installation portion to the nozzle installation portion.

7, device according to claim 1 is characterized in that forming the said burner seat with brass by forging.

8, burner, comprise the gasification portion that makes fuel gasification, heater to this gasification portion heating, make nozzle in the combustion gas ejection of gasification portion gasification, make from the burner portion of the fuel gas buring of nozzle ejection, the burner seat that described burner portion is maintained, it is characterized in that described burner seat is formed on its peripheral edge portion when forming the burner installation portion, dispose above-mentioned heater, and make from the burner installation portion and form above-mentioned gasification portion towards burner seat center, on this gasification portion one end, form the nozzle installation portion simultaneously, when being installed in said nozzle on this nozzle installation portion, the trunnion that configuration covers this nozzle, and on the burner installation portion of said burner seat, be provided with in the burner portion that above-mentioned trunnion is covered, on the said burner seat, remove and also form primary air outside the part of burner installation portion and gasification portion and nozzle installation portion and suck and use opening.

9, device according to claim 8, when it is characterized in that said burner seat along continuous straight runs disposed, with the nozzle installation portion be formed on this burner seat above, gasification portion is formed on a side below the said burner seat, and makes and be positioned at the nozzle below that is installed on the said nozzle installation portion.

10, device according to claim 8 is characterized in that above-mentioned gasification portion is formed linearity, in the part of reporting to the leadship after accomplishing a task with the nozzle installation portion it is communicated with the nozzle installation portion.

11, device according to claim 8 is characterized in that forming above-mentioned primary air suction opening by staying the flank that extends from the burner installation portion to the nozzle installation portion.

12, device according to claim 8 is characterized in that forming the said burner seat with brass by forging.

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