CN1105868C - 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

Burner

The present invention relates to make liquid fuel gasification and spray this gasifying gas and make it this life (Bunsen) formula burner of burning from nozzle.

Had multiple this type of burner at present, aftermentioned Figure 4 shows that a wherein example, and the type device can be saved 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, the oil of sending from food tray 51 is delivered in the vaporizer 55 that is made of gasifier 54 and gasifier lid 54A with above-mentioned electromagnetic pump 52.

Above-mentioned vaporizer 55 is buried heater 57 underground in the vaporizer perisporium of the throat shape pipe 56 that surrounds vaporizer central authorities, and the passage 59 that throat shape pipe 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, an end opposite with oil return pipe 60 of solenoid 61 is communicated with food tray 51, is provided with on solenoid 61 and can carries out the shank 62 that nozzle bore 63 opens and closes.

And, be provided with on the gasifier lid 54A top of the peristome of cover gasifier 54 contact closely with it, with the burner portion 66 that the outlet 65 of above-mentioned throat shape pipe 56 covers, be used in the flame 67 that forms on burner portion 66 perisporiums flange 68 on gasifier 54 tops heated.

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

So, when gasifier 54 reaches set point of temperature, 62 unlatchings of above-mentioned shank, the combustion gas of gasification is from nozzle bore 63 ejections.Gasification burning flows towards the throat shape pipe 56 that is arranged on above-mentioned gasifier central authorities with strong imposing manner, corresponding therewith, between above-mentioned throat shape pipe lower end 69 and nozzle 58, be involved in primary air, mix in burner portion 66 from throat shape pipe outlet 65, and after the periphery igniting of burner portion 66 generates combustion flame 67, burn.

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

Yet, still there are the following problems for above-mentioned structure, be exactly to form gasifier 54 by the periphery of throat shape pipe 56 is surrounded, gasifier 54 is maximized, thereby be difficult to make gasifier 54 to reach small compactization, manufacturing cost is improved, and, the thermal capacity of gasifier 54 increases, and when the running beginning gasifier 54 being heated to set point of temperature needs the time, makes time lengthening required when arriving igniting exactly.

In addition, also there is the problem that is difficult to guarantee seal in the gasifier 54, therefore, when making these gasifier 54 commercializations, gasifier 54 needs to engage many pipes, and with itself and throat shape pipe 56 cast solids etc., processed complex, in addition, when pipe not being cast into, on gasifier 54, cover 54A by topped gasifier, need apply encapsulant betwixt, thereby manufacturing cost is improved, and the deviation when also Chang Yin makes in batch simultaneously fluctuates and produces gas leakage or distortion, can not fully guarantee product quality.

In addition, owing to the shape that will surround the gasifier 54 that throat shape pipe 56 forms constitutes cylindrical shape, make work be difficult to carry out for making oil gasization, inhibition generate tar filling gasification key element in vaporizer smoothly, thereby exist the gasification key element to select to be restricted, can not fully improve the problem of performances such as tar.

In addition, in above-mentioned structure, since nozzle 58 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 is not gasified totally of low temperature or oil flow to the situation of nozzle 58 by lower passage 59, make gasification burning be difficult to flow, and because the temperature of low temperature combustion gas, nozzle 58 is low, gasification burning is prone to the tarring problem from passage 59 in nozzle 58.

For this reason, even to vaporizer 55 or from vaporizer 55 to nozzle in 58 the passage 59 filling promote the gasification key element of gasification usefulness, because it is circular surrounding the gasifier 54 of throat shape pipe 56, also be difficult to the such gasification key element of filling in vaporizer, thereby select the gasification key element to be restricted, exist the problem that tar performance etc. can not fully improve.

In addition, in above-mentioned structure, nozzle 58 is far away more from gasifier 54, and the primary air soakage is increased, yet, owing to there is above-mentioned tarring problem, can not make the position of nozzle 58 excessively low, therefore, can not make by the air suction area of the position relation decision between nozzle 58 and throat shape pipe 56 inlets enough big, can not suck enough burning primary airs, the combustibility of burner is restricted.And, because throat shape pipe 56 and gasifier 54 formed one,, throat shape pipe 56 lower shapes are defined as linearity because of the restriction that is subjected to this shaping etc., because of being subjected to the considerable influence of throat shape tube shape, the increase of primary air amount and subtract noise reduction sound countermeasure and be difficult to abundant enforcement.

The present invention is just in order to address the above problem, its primary and foremost purpose is to shorten the duration of ignition because of reclaiming when heat is saved this advantage of electric power in performance, the 2nd purpose is by making handling easeization and small compact reduction manufacturing cost, the 3rd purpose is further to suppress the tarring of combustion gas, the 4th purpose is used opening for increasing the primary air suction, and combustibility is improved.

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, described burner seat is the gasification portion that forms in flat member, make the installation portion of nozzle of the combustion gas ejection of autopneumatolysis portion, and passage from gasification portion to the nozzle installation portion, meanwhile, also form to utilize the opening that sucks primary air from the jet-action of the combustion gas of said nozzle ejection, cover on burner portion on the said burner seat again and make it to cover this opening, and throat shape pipe is configured in this burner portion.

In addition, the said burner seat disposes along general horizontal direction, forms the nozzle installation portion simultaneously on the burner seat, forms gasification portion below the said burner seat, and is located at the below that is installed in the nozzle on the nozzle installation portion.

Perhaps periphery forms the burner released part on the said burner seat, forms the nozzle installation portion at central portion simultaneously, and forms the gasification portion of linearity between nozzle installation portion and burner installation portion, along this gasification portion and burner released part heater is set.

Perhaps, periphery at the said burner seat is installed heater, form the nozzle installation portion at central portion simultaneously, and form the gasification portion that is communicated with by passage and this nozzle installation portion in a side of said nozzle installation portion, reserve to extend to the flank of nozzle installation portion and form in a side opposite simultaneously and suck the opening that primary air is used from the burner installation portion with it.

As mentioned above, because the present invention forms gasification portion on the burner seat, the opening that nozzle installation portion and suction primary air are used, dispose throat shape pipe simultaneously in the burner portion on being located at this burner seat, therefore not influenced by throat shape pipe and gasification portion is designed to small compact shape, can reduce cost, shorten the duration of ignition, simultaneously described gasification portion and nozzle installation portion can adopt carrying out the processing method of hole processing etc. after executions such as the brass forging, thereby can cost be reduced because of adopting simple processing side, can stably provide simultaneously and guarantee airtight high quality of products, not worry the influence that the deviation when making in batch fluctuates and causes.

In addition, be positioned at gasification portion top owing to be installed in the nozzle of nozzle installation portion, 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 the high-temperature gasification combustion gas that is gasified totally comes to nozzle flow, thereby the generating gasification gas tar oilization improves the tar performance hardly.

In addition, since the burner portion that is provided with heater of burner seat put and the nozzle installation portion between form gasification portion, 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 the condition of high temperature can be used for, thereby the tarring that causes because of the low gasification burning liquefaction that causes of nozzle temperature etc. can be prevented.

In addition, owing to make the gasification portion that between said burner installation portion and nozzle installation portion, the forms shape that is in line, and the portion of reporting to the leadship after accomplishing a task between gasification portion and nozzle installation portion is communicated with both, so promote the member of gasification usefulness easily to the filling of gasification portion, can freely select the material that promotes gasification to use member, improve the tar performance simultaneously thereby can improve gasification performance.

In addition, the opening that nozzle installation portion and suction primary air are used is formed on the burner seat, the conduction heat from burner portion that can obtain with the burner released part from the burner seat will be installed in the temperature maintenance of the nozzle on the nozzle installation portion in higher state, can not open greatly sucking the opening that primary air use so worry that nozzle temperature is low, need not increase burner seat integral body and just can form the opening that enough big suction primary air is used, thereby can reach small compactization, guarantee good combustibility simultaneously.

In addition, form the opening that above-mentioned suction primary air is used owing to staying the flank that extends to the nozzle installation portion from tabular burner installation portion, so be not only near the gasification portion, also can will be from the heat that is installed in the burner portion on the burner installation portion to the nozzle transmission near the flank by this flank, 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 with the sufficiently high state of this temperature maintenance, thus keep good tar performance.

Simple declaration to accompanying drawing.

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

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

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

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, be used to make the oil gasization of sending here from inlet 4A, within it portion as required filling promote the gasification key element (not shown) of gasification usefulness, 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, is arranged in the return duct 11 that is communicated with nozzle installation portion 8A, and driving can open or close the shank 12 that jet expansion 9 cleans.

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

On the central portion of said burner seat 13, form said nozzle installation portion 8A, forming near the nozzle installation portion 8A place the above-mentioned gasification of formation portion 4 below nozzle installation portion 8A simultaneously.And, above-mentioned gasification portion 4 is as Fig. 2, shown in 3, form from the outer circumferential nozzle installation portion 8A of burner seat 13 extend and with its linearity that intersects, and nozzle installation portion 8A between the portion of reporting to the leadship after accomplishing a task form above-mentioned passage 7, and make gasification cover 5 outer Monday of the sides that are positioned at burner seat 13.In addition, the periphery of nozzle installation portion 8A is in gasification portion 4 with reserve the flank 16 that forms radially between the burner released part 14 of gasification portion 4 opposite sides and the nozzle installation portion 8A therewith and dig out and suck the opening 17 that primary air is used.

18 for put on the burner installation portion 14 of said burner seat 13, with the throat shape pipe that said nozzle 8 tops cover, be processed to form with the metal tube pull and stretch, for easy suction primary air, its underpart is constituted circular-arc expansion open form shape.19 burner portions for putting on said burner installation portion 14, throat shape pipe 18 being covered, on its perisporium, form a plurality of glory holes 20, can make from the gasification burning burning of nozzle 8 ejections, be fixed on the burner installation portion 14 with screw 21, thereby throat shape pipe 18 is clamped.

In above-mentioned structure, the oil of sending with electromagnetic pump 2 enters 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.The oil of gasification moves along the direction of straight line to nozzle 8, arrives nozzle 8 by passage 7.At this moment, preferentially the high-temperature gasification combustion gas is delivered to nozzle 8 through the passage 7 on top.Under this state, made opening operation by the shank 12 that solenoid 10 drives, gasification burning is from jet expansion 9 ejections.In view of the above, the opening 17 that the suction primary air around nozzle 8 is used sucks primary air, mixes in throat shape pipe 18 and burner portion 19, and the periphery igniting in burner portion 19 produces combustion flame 22, burns away with same action later.

In addition, burner seat 13 absorbs from the heat of the conduction heat of burner 19 and combustion flame 22 becomes high temperature, making with its all-in-one-piece gasification portion 4 also becomes high temperature, though become igniting back not to heater 15 energisings also can spontaneous combustion the power conservation type burner.

And, because this burner forms tabular with burner seat 13, gasification portion 4, nozzle installation portion 8A and primary air are sucked with opening 17 formation one, simultaneously throat shape pipe 18 and burner portion 19 are installed in this burner seat 13 above, so gasification portion 4 is not subjected to throat shape pipe about 18 and can be designed to small compact.

In addition, owing to can cut the above-mentioned gasification of the formation portion 4 of digging from the peripheral part of burner seat 13, cut from above to dig and form nozzle installation portion 8A, so carry out hole processing after implementing forging to the contour contact of brass sheet material, form with this simple and processing method that can in short-term, finish and to have gasification portion 4, the burner seat 13 of the opening 17 that nozzle installation portion 8A and suction primary air are used, 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 when adhering to tar, it can be burnt and loose, temperature is further improved, possess cleaning function.And,, make the gasification lid 5 of topped this opening 4B keep sealing easily so its open-ended 4B becomes the minimum part of burner seat 13 peripheries owing to can cut the gasification portion 4 that is processed to form of digging with aforesaid, even make in batch, also guarantee 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, and heater 15 is installed on the said burner installation portion 14, therefore gasification portion 4 and burner installation portion 14 are evenly heated by heater 15 when igniting, simultaneously, 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, can bring into play good gasification performance, simultaneously, 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 come the gasification burning of autopneumatolysis portion 4 successfully to flow successively from the high-temperature region naturally towards nozzle 8, and because the high-temperature gasification combustion gas that is gasified totally is flowed towards nozzle 8, therefore, tarring takes place in gasification burning hardly, and the tar performance is improved significantly.

In addition, owing between the burner installation portion 14 that is provided with heater 15 of burner seat 13 and nozzle installation portion 8A, form gasification portion 4, can be with gasification portion 4 and the nozzle 8 that is installed on the nozzle installation portion 8A being maintained high temperature from heater 15 and the conduction heat that is installed in the burner portion 19 on the burner released part 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 linearity is made by the gasification portion 4 that forms between said burner released part 14 and nozzle installation portion 8A, the part of reporting to the leadship after accomplishing a task between gasification portion 4 and nozzle installation portion 8A is communicated with both, and the opening 4B that makes this gasification portion 4 is positioned on the periphery of burner installation portion 14, thereby easily to the filling of gasification portion or unload the gasification key element, simultaneously, also can freely select the material of gasification key element etc., gasification performance is improved.

In addition, because with nozzle installation portion 8A with suck the opening 17 that primary air uses and be formed on the burner seat 13, therefore, can be higher the temperature maintenance that is installed in the nozzle 8 on the nozzle installation portion 8A with the conduction heat that obtains from burner released part 14 from burner portion 19, because of not worrying that nozzle temperature descends, the opening 17 that the suction primary air can be used is opened greatly, its result can needn't make burner seat 13 all changes greatly, the opening 17 that the suction primary air can be used forms enough big, thereby can reach small compactization, guarantee good combustibility simultaneously.

In addition, form the opening 17 that above-mentioned suction primary air is used owing to reserving the flank 16 that extends to nozzle installation portion 8A from burner installation portion 14, therefore be not only near the gasification portion 4, even near this flank 16, also can pass through this flank 16, conducting to nozzle 8 from the heat transfer that puts the burner portion 19 on burner released part 14, the temperature maintenance of the nozzle 8 that can will be easily cooled off by primary air is preventing the degree of tarring, can keep good tar performance for a long time, and the heat of above-mentioned flank 16 spontaneous combustion in the future device portion 19 is delivered to nozzle installation portion 8A, also can be delivered to gasification portion 4, can be 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, therefore can make gasification portion not influenced by throat shape pipe and be designed to small compact, can improve the cost and the duration of ignition, simultaneously, after adopting executions such as brass are forged, above-mentioned gasification portion and nozzle installation portion carry out the processing method manufacturing of hole processing etc., because of making cost, the simple processing method that adopts reduces, simultaneously, deviation fluctuation when making 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 because be that the high-temperature gasification combustion gas that has been gasified totally is flowed to nozzle, therefore the tarring of generating gasification combustion gas hardly improves the tar performance.

In addition, owing between the burner released part that is provided with heater of burner seat and nozzle installation portion, form gasification portion, so can be used for autopneumatolysis portion and be installed in the nozzle that the conduction heat of the burner portion on the burner released part 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 gasification portion that between said burner released part and nozzle installation portion, forms linearly, and the part of reporting to the leadship after accomplishing a task at gasification portion and nozzle installation portion is communicated with both, so promote the member of gasification usefulness easily to the filling of gasification portion, can freely select the material of this member, thereby can improve gasification performance, also can improve the tar performance simultaneously.

In addition, owing on the burner seat, form nozzle installation portion and primary air suction opening simultaneously, so the nozzle that the conduction heat from burner that can obtain with the burner released part from the 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, can form sufficient primary air suction and need not the burner seat is totally enlarged, can guarantee good combustibility again thereby can reach small compactization with opening.

In addition, form above-mentioned primary air and suck and use opening owing to reserving the flank that extends to the nozzle installation portion from tabular burner released part, so be not only gasification portion side, this flank side also can by this flank from the heat that puts the burner portion on the burner released part to the nozzle transmission, with this as preventing because of easily being cooled off the countermeasure that the nozzle that is low temperature produces tarring by primary air, can for a long time nozzle temperature be maintained enough height, keep good tar performance.

Claims (12)

1. burner, comprise: the gasification portion that makes fuel gasification, heater with 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, and the burner seat that said burner portion is maintained, it is characterized in that, the said burner seat is the gasification portion that forms in flat member, make installation portion and passage from gasification portion to the nozzle installation portion from the nozzle of the combustion gas of this gasification portion ejection, form utilization sucks primary air from the jet-action of the combustion gas of said nozzle ejection opening simultaneously, and on the said burner seat, cover burner portion, make it simultaneously with this opening cover, configuration throat shape pipe in this burner portion.

2. burner according to claim 1, it is characterized in that, the configuration of said burner seat along continuous straight runs, simultaneously the nozzle installation portion be formed on this burner seat above, gasification portion is formed on a following side of burner seat, and is positioned at the below that is installed in the nozzle on the said nozzle installation portion.

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

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

5. burner according to claim 1, it is characterized in that, periphery at the said burner seat forms the burner released part, form the nozzle installation portion at central portion simultaneously, passing through passage continuous gasification portion and the said nozzle installation portion one side formation one of nozzle installation portion therewith, form the opening that suction primary air is used at its opposition side simultaneously.

6. burner according to claim 5 is characterized in that, reserves from the burner released part to extend to the flank of nozzle installation portion and form the opening that above-mentioned suction primary air is used.

7. burner according to claim 1 is characterized in that, forms 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 forms the burner released part at its peripheral edge portion, dispose above-mentioned heater simultaneously, and form above-mentioned gasification portion to the center of burner seat from the burner released part, form the nozzle installation portion at this gasification portion one end simultaneously, said nozzle is installed on this nozzle installation portion, dispose the throat shape pipe that this nozzle is covered simultaneously, and the burner portion that above-mentioned throat shape shroud is lived is set on the burner released part of said burner seat, on the said burner seat, forms the opening that the suction primary air is used simultaneously in the part except burner released part and gasification portion and nozzle installation portion.

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

10. burner according to claim 8 is characterized in that, above-mentioned gasification portion forms linearity, and and the nozzle installation portion between the part of reporting to the leadship after accomplishing a task be communicated with the nozzle installation portion.

11. burner according to claim 8 is characterized in that, reserves from the burner installation portion to extend to the flank of nozzle installation portion and form the opening that above-mentioned suction primary air is used.

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

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