CN102659075B - Load-controllable multichannel liquid fuel gasification burner - Google Patents
Load-controllable multichannel liquid fuel gasification burner Download PDFInfo
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- CN102659075B CN102659075B CN201210153566.9A CN201210153566A CN102659075B CN 102659075 B CN102659075 B CN 102659075B CN 201210153566 A CN201210153566 A CN 201210153566A CN 102659075 B CN102659075 B CN 102659075B
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Abstract
The invention discloses a load-controllable multichannel liquid fuel gasification burner, which comprises a burner central spray pipe, a first burner outer ring spray pipe, a second burner outer ring spray pipe, a third burner outer ring spray pipe, a burner central sprayer, a first burner outer ring sprayer, a second burner outer ring sprayer, a third burner outer ring sprayer, a swirler and a burner cooling system, wherein the burner central spray pipe, the first burner outer ring spray pipe, the second burner outer ring spray pipe and the third burner outer ring spray pipe are coaxial. According to the load-controllable multichannel liquid fuel gasification burner disclosed by the invention, the rotation of airflow in a central channel is enhanced by adopting a multichannel structural design through arranging the swirler in a central channel spray pipe, thus, the overall atomization performance of the burner is improved. By adopting the multichannel design, on one hand, the atomization of the airflow to liquid fuel can be enhanced, and on the other hand, the regulation on the flow of a gasification agent and the flow of the liquid fuel can be enhanced, thus, the load of the gasification burner is effectively regulated. The liquid fuel burner is cooled by adopting a jacket-type cooling mode. Compared with a coiled pipe-type cooling effect of a traditional industrially applied liquid fuel gasification burner, the jacket-type cooling effect is obviously enhanced.
Description
Technical field
The present invention relates to liquid fuel gasification burner, especially a kind of load controllable hyperchannel liquid fuel gasification burner.
Background technology
The clean and effective utilization of the carbonaceous fuels such as coal becomes the important topic of current energy utilization gradually.Fuel gasification preparing synthetic gas can be the systems such as modern chemical industry production, combined cycle generation (being called for short IGCC generating), ICL for Indirect Coal Liquefaction and coal hydrogen manufacturing leading technology is provided.At present, the vaporizing system synthetic gas technology of the carbonaceous fuels such as coal is divided into two classes conventionally, and a class is liquid fuel gasification technology, and another kind is dry-powder solid fuel gasification technology.As one of key part gasifying, the development of burner technology has directly determined operation stability and the reliability of liquid fuel gasification technology, and the backwardness of burner technology has seriously restricted the raising of production efficiency.
Because vapourizing furnace interior reaction temperature is up to 1400 ℃, nozzle structure design is improper, will its head of ablation, and ablation gasification stove internal wall, produces serious consequence.In the time that the fuel atomizing of burner liquid towards is abundant not, will affect the efficiency of carbon conversion of fuel, reduce synthetic gas available gas component concentration.In the time that burner head design is unreasonable, may cause the abrasion of burner head wall surface material, affect its work-ing life.In addition, the cooling efficiency of burner head cooling system directly affects the long period reliability service of burner.Existing patented technology is the burner of straight pipe type structure as United States Patent (USP) 4736693,4858538,4443228 and Chinese patent 89104265 etc. all adopt core jet pipe, common shortcoming is that material lacked accelerator before spraying into reactor, the speed of leaving burner is low, atomizing effect is not good enough, and is easy to ablation burner.The structure of the employing pipe core front end reducings such as United States Patent (USP) 3743606,3705108,4443230 improves logistics speed, core jet pipe outlet logistics speed improves, burner atomizing effect is strengthened, but speed will make the abrasion of burner head accelerate after improving, affected the work-ing life of nozzle.And for single nozzle overhead type vapourizing furnace, top jet nozzle outlet material flow velocity is crossed senior general directly affects the residence time of material in vapourizing furnace, thereby affects overall efficiency of carbon conversion, and its gasification burner tip adopting cannot carry out load control conventionally.
In addition, the liquid fuel gasification burner of existing industrial application all adopts the relatively simple coil tube type water-cooling system of manufacture craft substantially, as Chinese patent 95111750.5 and 200710037138.9 etc., it mainly exists head cooling jacket structure design simple, the problem that cooling performance is not good.And adopting triple channel structure design, load control ability is poor, during particularly for integrated gasification combined cycle for power generation, cannot adapt to electrical network peak change by flexible gasification load.
In sum, solving the problems such as the high-efficient atomizing of liquid fuel and burner head be cooling, is the key point that improves current liquid fuel gasification burner use properties.Therefore, developing advanced load controllable long lifetime high-efficient atomizing gasification burner tip is one of gordian technique approach improving China's liquid fuel gasification engineering reliability.
Summary of the invention
The technical problem to be solved in the present invention is the load of the gasification burner tip technology in order the to overcome prior art defect such as poor the and atomization of easy-regulating, burner cooling performance is not bad, and a kind of load controllable hyperchannel liquid fuel gasification burner is provided.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of load controllable hyperchannel liquid fuel gasification burner, its feature is, it comprises a coaxial burner core jet pipe, one first burner outer shroud jet pipe, one second burner outer shroud jet pipe, one the 3rd burner outer shroud jet pipe and a burner center shower nozzle, one first burner outer shroud shower nozzle, one second burner outer shroud shower nozzle, one the 3rd burner outer shroud shower nozzle, a swirler and a burner cooling system;
This burner center shower nozzle, this first burner outer shroud shower nozzle, this second burner outer shroud shower nozzle and the 3rd burner outer shroud shower nozzle are respectively the Taper Pipe of a butt;
This first burner outer shroud jet pipe is enclosed within this burner core jet pipe and has formed one first outer ring channel outward; This second burner outer shroud jet pipe is enclosed within this first burner outer shroud nozzle contour and has become one second outer ring channel; The 3rd burner outer shroud jet pipe is enclosed within outer the second ring nozzle contour of this burner and has become one the 3rd outer ring channel;
In this centre channel, be provided with swirler, the external diameter of this swirler is identical with the internal diameter of this centre channel, and this swirler comprises some swirl vanes;
This burner center shower nozzle has contraction half-angle α and the outer side rake angle δ of a burner center shower nozzle in a burner center shower nozzle;
This first burner outer shroud shower nozzle has contraction half-angle β and the outer side rake angle ε of one first burner outer shroud shower nozzle in one first burner outer shroud shower nozzle;
This second burner outer shroud shower nozzle has contraction half-angle μ in one second burner outer shroud shower nozzle;
The 3rd burner outer shroud shower nozzle has the outer side rake angle τ of one the 3rd burner outer shroud shower nozzle;
The nozzle of this burner center shower nozzle is provided with a spout straight section, the nozzle diameter d of this burner center shower nozzle and the height h of spout straight section
4ratio 0<h
4: d≤10;
Distance h between the vents face of the vents face of this burner center shower nozzle and this first burner outer shroud shower nozzle
1be 0≤h
1≤ 100mm;
Distance h between the vents face of the vents face of this first burner outer shroud shower nozzle and this second burner outer shroud shower nozzle
2be 0≤h2≤60mm;
Distance h between the vents face of this second burner outer shroud shower nozzle and the vents face of the 3rd burner outer shroud shower nozzle
3be 0≤h
3≤ 60mm.Wherein, the large end of above-mentioned each shower nozzle is connected with the jet pipe of passage separately.
Wherein, the distance h between the vents face of this burner center shower nozzle and the vents face of this first burner outer shroud shower nozzle
1be 1 ~ 20mm.
Wherein, the distance h between the vents face of this first burner outer shroud shower nozzle and the vents face of this second burner outer shroud shower nozzle
2be 1 ~ 20mm.
Wherein, the distance h between the vents face of this second burner outer shroud shower nozzle and the vents face of the 3rd burner outer shroud shower nozzle
3be 1 ~ 20mm.
Wherein, vaporized chemical enters vapourizing furnace from this burner centre channel and this second outer ring channel or the 3rd outer ring channel, and liquid fuel enters vapourizing furnace by the first outer ring channel of this burner, and protection gas enters vapourizing furnace by the 3rd outer ring channel.
Wherein, in this burner center shower nozzle, shrinking half-angle α is 5 ° ~ 30 °, and the outer side rake angle δ of this burner center shower nozzle is 30 ° ~ 85 °; In this first burner outer shroud shower nozzle, shrinking half-angle β is 5 ° ~ 45 °, and the outer side rake angle ε of this first burner outer shroud shower nozzle is 30 ° ~ 85 °; In this second burner outer shroud shower nozzle, shrinking half-angle μ is 5 ° ~ 45 °; The outer side rake angle τ of the 3rd burner outer shroud shower nozzle is 30 ° ~ 85 °.
Wherein, the internal diameter of the centrally-pivoted axle of this swirler is 0.2 ~ 0.8 with the ratio of external diameter, and the height of this swirler is 5 ~ 100mm, and the swirl vane number of this swirler is 2 ~ 20, and the thickness of described swirl vane is 1 ~ 25mm; Angle between described swirl vane and this centrally-pivoted axle is 15 ° ~ 75 °.
Wherein, this burner cooling system comprises that an interior cooling room, that is arranged on this outer shower nozzle outside is communicated with this interior cooling room and is looped around outer cooling room, a cooling room end face, a coolant inlet being communicated with this interior cooling room, a coolant outlet being communicated with this outer cooling room, a cooling room metal division plate, a cooling room inner ring top board, a cooling room outer ring top board, a cooling fluid access road, a cooling liquid outlet passage, a cooling room outer wall passage pipe and the cooling room upper channel centre division plate outside this interior cooling room; Coolant inlet is connected, is located at by pipeline the flange that this burner is connected with this vapourizing furnace respectively with coolant outlet; This refrigerant is entered on backward to this outer cooling room with certain flow velocity rotational flow after this interior cooling room and is entered this cooling room exit passageway by this coolant inlet passage.Refrigerant can adopt low-temperature cooling water or other heat-eliminating mediums.This cooling system is divided into two cavitys by this cooling room metal partion (metp), form two cooling cavitys of annular, i.e. this interior cooling room and this outer cooling room, refrigerant enters from inner side low level entrance, and after inside and outside annular passage annular is streamed, through outside, high-order outlet is flowed out; Wherein, this coolant outlet and this coolant inlet number be respectively 1 ~ 5.
Wherein, the flow velocity of this vaporized chemical is 30 ~ 300m/s, and the flow velocity of this liquid fuel is 1 ~ 40m/s, and the flow velocity of this protection gas is 20 ~ 250m/s; 50 ~ 100% vaporized chemical is sprayed and is entered vapourizing furnace by outer ring channel, and 0 ~ 50% vaporized chemical is sprayed and entered vapourizing furnace by centre channel.Liquid fuel is sprayed and is entered after vapourizing furnace by the first burner outer ring channel, the high speed that the high-speed rotary gas ejecting in centre channel and outer ring channel eject is cut sth. askew under the high speed pneumatic power effect of gas, liquid fuel is atomized into small droplets, and acutely mix at burner nozzle with vaporized chemical, at high temperature carry out partial oxidation reaction, i.e. gasification reaction simultaneously.Said protection gas is selected from CO
2, water vapor and N
2or its mixture.By regulating ratio, the flow velocity of liquid fuel, vaporized chemical and protection gas, can change the shape of gasification flame, close or regulate respective channel logistics ratio, can significantly regulate burner load.
Wherein, this liquid fuel comprises the slurry of liquid hydrocarbon matter fuel or pumpable solid carbon-contg material; This vaporized chemical is that the volume fraction of air, oxygen is greater than 21% oxygen-rich air, oxygen purity and is greater than a kind of or its mixture in 98% pure oxygen, water vapor or carbonic acid gas.This load controllable hyperchannel liquid fuel gasification burner is installed on after vapourizing furnace, can be used for liquid fuel gasification preparing synthetic gas.
Wherein, the slurry of this solid carbon-contg material is selected from coal dust, refinery coke, biomass or solid-state castoff.
Wherein, the applicable pressure 0.1 ~ 15.0MPa of this burner.
In the present invention, above-mentioned optimum condition can arbitrary combination on the basis that meets this area general knowledge, obtains the each preferred embodiment of the present invention.
Positive progressive effect of the present invention is:
1) gasification burner tip of the present invention adopts multi-channel structure design, clip water cooling system, and burner overall structure is simple, makes easy to maintenance; Can be used for the vaporizing system synthesis gas process that coal water slurry, oil coke slurry, residual oil, biomass class and coal are total to the fuel slurries such as pulping, of many uses;
2) gasification burner tip of the present invention is provided with three gas phase channels, a liquid fuel channel, in gas phase channel, be provided with a protection gas passage, by changing each passage logistics flux, flow velocity and relative proportion, realized generally the flexible regulation and control of burner load;
3) gasification burner tip of the present invention adopts multi-channel structure design, and in centre channel, be provided with swirler, and improving the overall atomization of burner, liquid towards fuel atomizing is more abundant, contribute to improve the efficiency of carbon conversion of gasification system, thereby improve integrated gasification efficiency;
4) burner of the present invention has adopted jacketed type design of Cooling System, solve the problem of inhomogeneous cooling in coil tube type cooling system, the particularly jacketed type Cooling Design of burner head, has improved the cooling performance of burner head material greatly, thereby has extended the work-ing life of burner.
Accompanying drawing explanation
Fig. 1 is the structural representation of load controllable hyperchannel liquid fuel gasification burner of the present invention.
Fig. 2 is the head diagrammatic cross-section of burner of the present invention.
Fig. 3 is the head section local structure schematic diagram of burner of the present invention.
Fig. 4 is the head cooling jacket cross-sectional view of burner of the present invention.
Fig. 5 is the structural representation of the swirler of load controllable hyperchannel liquid fuel gasification burner of the present invention.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
Embodiment 1
Fig. 1 ~ 3rd, peripheral structure and the internal structure schematic diagram of load controllable hyperchannel liquid fuel gasification burner of the present invention.Described burner comprises protection sweep gas entrance 29, central oxidizer entrance 30, fuel inlet 31, outer ring channel oxidant inlet 32, outer epoxidizing agent or protection gas entrance 33, coolant entrance 34, coolant outlet 35, joint flange 36, coaxial burner core jet pipe 6, the first burner outer shroud jet pipe 5, the second burner outer shroud jet pipe 4, the 3rd burner outer shroud jet pipe 3 and burner center shower nozzle 17, the first burner outer shroud shower nozzle 18, the second burner outer shroud shower nozzle 19, the 3rd burner outer shroud shower nozzle 20, swirler 11 and burner cooling system.
Said burner center shower nozzle 17, the first burner outer shroud shower nozzle 18, the second burner outer shroud shower nozzle 19 and the 3rd burner outer shroud shower nozzle 20 are respectively the Taper Pipe of a butt.The first burner outer shroud jet pipe 5 is enclosed within outside burner core jet pipe 6, has formed the first outer ring channel 9; The second burner outer shroud jet pipe 4 of burner is enclosed within outside the first burner outer shroud jet pipe 5, has formed the second outer ring channel 8; The 3rd burner outer shroud jet pipe 3 is enclosed within outside the second burner outer shroud jet pipe 4, has formed the 3rd outer ring channel 7.In centre channel 10, be provided with swirler 11, the external diameter of swirler 11 is identical with the internal diameter of described centre channel 10, and the internal diameter of the centrally-pivoted axle 27 of the swirler 11 in centre channel is 0.2 ~ 0.8 with the ratio of external diameter.Said swirler comprises some swirl vanes 28, and the angle between swirl vane 28 and described centrally-pivoted axle 27 is 15 ° ~ 75 ° (see figure 5)s.
Said swirler height is 5 ~ 100mm, and swirl vane number is 2 ~ 20, and vane thickness is 1 ~ 25mm.
Referring to Fig. 3, said burner center shower nozzle 17 has contraction half-angle α and the outer side rake angle δ of burner center shower nozzle in the shower nozzle of burner center, and α is 5 ° ~ 30 °, and δ is 30 ° ~ 85 °.This first burner outer shroud shower nozzle 18 has contraction half-angle β and the outer side rake angle ε of the first burner outer shroud shower nozzle in one first burner outer shroud shower nozzle, and β is 5 ° ~ 45 °, and ε is 30 ° ~ 85 °; The second burner outer shroud shower nozzle 19 has contraction half-angle μ in one second burner outer shroud shower nozzle, and μ is 5 ° ~ 45 °; The 3rd burner outer shroud shower nozzle 20 has the outer side rake angle τ of one the 3rd burner outer shroud shower nozzle, and τ is 30 ° ~ 85 °.
The nozzle of said burner center shower nozzle 17 is provided with spout straight section, the nozzle diameter d of burner center shower nozzle and the height h of spout straight section
4ratio, i.e. h
4: d=0 ~ 10.
Distance h between the vents face of said burner center shower nozzle 17 and the vents face of the first burner outer shroud shower nozzle 18
1be 0 ~ 100mm, be preferably 1 ~ 20mm.Distance h between the vents face of the vents face of said the first burner outer shroud shower nozzle 18 and the second burner outer shroud shower nozzle 19
2be 0 ~ 60mm, be preferably 1 ~ 20mm.Distance h between the vents face of the vents face of said the second burner outer shroud shower nozzle 19 and the 3rd burner outer shroud shower nozzle 20
3be 0 ~ 60mm, elect 1 ~ 20mm as.
Referring to Fig. 2 and Fig. 4, said burner cooling system, comprise the interior cooling room 16 that is looped around the outer shower nozzle of the 3rd burner 20 outsides, be communicated with interior cooling room 16 and be looped around the outer cooling room 15 outside interior cooling room 16, cooling room end face 21, the coolant inlet 22 being communicated with interior cooling room 16, the coolant outlet 23 being communicated with outer cooling room 15, be located at the cooling room metal division plate 24 between interior cooling room 16 and outer cooling room 15, cooling room inner ring top board 26, cooling room outer ring top board 25, cooling fluid access road 13, cooling liquid outlet passage 14, in the middle of cooling room outer wall passage pipe 1 and cooling room upper channel, division plate 2 forms.Coolant inlet 22 and coolant outlet 23 are located at respectively burner and vapourizing furnace joint flange place, and all connect by pipeline.Refrigerant is entered by cooling fluid access road 13 on backward to outer cooling room 15 with certain flow velocity rotational flow after the interior cooling room 16 of burner head and enters cooling room exit passageway 14.Said refrigerant is generally water, also can be other safe liquid.In order to guarantee the right alignment of each passage of burner, be provided with fixed support 12 at each interchannel of burner.
If burner is installed on to single nozzle overhead coal slurry gasifier, when fuel is that concentration is while being the coal water slurry of 61%wt, pure oxygen take 99.6% is vaporized chemical, gasification result is that in synthetic gas, effective constituent CO+H2vol% reaches 83.5%, lime-ash carbon residue is 5%, burner can reach 5 months continuous work-ing life, meets the requirement of coal water slurry gasification completely.
In the present embodiment, said nozzle structure parameter is as follows:
β is 5 °, and ε is 85 °; β is 5 °, and ε is 45 °; μ is 5 °; τ is 30 °;
The nozzle diameter d of burner center shower nozzle 17 and the height h of spout straight section
4ratio, i.e. h
4: d=10.Distance h between the vents face of the vents face of burner center shower nozzle 17 and the first burner outer shroud shower nozzle 18
1for 5mm.Distance h between the vents face of the vents face of the first burner outer shroud shower nozzle 18 and the second burner outer shroud shower nozzle 19
2for 2mm.Distance h between the vents face of the vents face of the second burner outer shroud shower nozzle 19 and the 3rd burner outer shroud shower nozzle 20
3for 3mm.The swirler 11 of centre channel 10 interior settings is highly 100mm, and rotating paddle number is 8, and vane thickness is 3mm, and angle of rotation is 75 °.
Specific embodiment is as follows:
Vaporized chemical is entered to vapourizing furnace from burner centre channel 10 and the second outer ring channel 8 injections; liquid fuel is sprayed and is entered vapourizing furnace by burner the first outer ring channel 9; protection gas is by the 3rd outer ring channel 7; the flow velocity of vaporized chemical is 120m/s; the flow velocity of liquid fuel is 10m/s, and the flow velocity of protection gas is 125m/s.90% vaporized chemical is sprayed and is entered vapourizing furnace by the second outer ring channel 8, and 10% vaporized chemical is sprayed and entered vapourizing furnace by burner centre channel 10; Pressure is 6.5MPa.
In the time that needs increase by 50% load control; the flow velocity of liquid fuel is risen to 15m/s; the vaporized chemical flow of corresponding increase by 50%; wherein each 30% the flow that increases of centre channel and the second outer ring channel; vaporized chemical flow velocity reaches 156m/s; 20% vaporized chemical that remains required increase is sprayed and is entered by the 3rd outer ring channel, the corresponding raising of protection gas passage flow velocity.
Embodiment 2
The difference of the present embodiment and embodiment 1 is, if burner is installed on to single nozzle overhead coal slurry gasifier, when fuel is concentration while being the oil coke slurry of 65%wt, the pure oxygen take 98% is vaporized chemical, and gasification result is available gas composition CO and H in synthetic gas
2volume percent sum reach 86%, lime-ash carbon residue is 4%, burner can reach 5 months continuous work-ing life, meets the requirement of oil coke slurry gasification completely.
Said nozzle structure parameter is as follows:
β is 15 °, and ε is 60 °; β is 20 °, and ε is 45 °; μ is 30 °; τ is 60 °.The nozzle diameter d of burner center shower nozzle 17 and spout straight section height h
4ratio, i.e. h
4: d=3.Distance h between the vents face of the vents face of burner center shower nozzle 17 and the first burner outer shroud shower nozzle 18
1for 2mm.Distance h between the vents face of the vents face of the first burner outer shroud shower nozzle 18 and the second burner outer shroud shower nozzle 19
2for 1mm.Distance h between the vents face of the vents face of the second burner outer shroud shower nozzle 19 and the 3rd burner outer shroud shower nozzle 20
3for 1mm.The swirler 11 of centre channel 10 interior settings is highly 50mm, and rotating paddle number is 12, and vane thickness is 2mm, and angle of rotation is 60 °.
Specific embodiment is as follows:
Vaporized chemical is entered to vapourizing furnace from burner centre channel 10 and the second outer ring channel 8 injections; liquid fuel is sprayed and is entered vapourizing furnace by burner the first outer ring channel 9; protection gas is by the 3rd outer ring channel 7; the flow velocity of vaporized chemical is 160m/s; the flow velocity of liquid fuel is 15m/s, and the flow velocity of protection gas is 100m/s.85% vaporized chemical is sprayed and is entered vapourizing furnace by the second outer ring channel 8, and 15% vaporized chemical is sprayed and entered vapourizing furnace by burner centre channel 10; Pressure is 4.0MPa.
In the time that needs reduce by 20% load control, the flow velocity of liquid fuel is reduced to 12m/s, the vaporized chemical flow of corresponding minimizing 20%, vaporized chemical flow velocity reaches and is reduced to 128m/s, and shielding gas flow amount flow velocity remains unchanged.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present invention and essence, can make various changes or modifications to these embodiments, but these changes and modification all fall into protection scope of the present invention.
Claims (8)
1. a load controllable hyperchannel liquid fuel gasification burner, it is characterized in that, it comprises a coaxial burner core jet pipe, one first burner outer shroud jet pipe, one second burner outer shroud jet pipe, one the 3rd burner outer shroud jet pipe and a burner center shower nozzle, one first burner outer shroud shower nozzle, one second burner outer shroud shower nozzle, one the 3rd burner outer shroud shower nozzle, a swirler and a burner cooling system;
This burner center shower nozzle, this first burner outer shroud shower nozzle, this second burner outer shroud shower nozzle and the 3rd burner outer shroud shower nozzle are respectively the Taper Pipe of a butt;
This first burner outer shroud jet pipe is enclosed within this burner core jet pipe and has formed one first outer ring channel outward; This second burner outer shroud jet pipe is enclosed within this first burner outer shroud nozzle contour and has become one second outer ring channel; The 3rd burner outer shroud jet pipe is enclosed within this second burner outer shroud nozzle contour and has become one the 3rd outer ring channel;
In this centre channel, be provided with swirler, the external diameter of this swirler is identical with the internal diameter of this centre channel, and this swirler comprises some swirl vanes;
This burner center shower nozzle has contraction half-angle α and the outer side rake angle δ of a burner center shower nozzle in a burner center shower nozzle;
This first burner outer shroud shower nozzle has contraction half-angle β and the outer side rake angle ε of one first burner outer shroud shower nozzle in one first burner outer shroud shower nozzle;
This second burner outer shroud shower nozzle has contraction half-angle μ in one second burner outer shroud shower nozzle;
The 3rd burner outer shroud shower nozzle has the outer side rake angle τ of one the 3rd burner outer shroud shower nozzle;
The nozzle of this burner center shower nozzle is provided with a spout straight section, ratio 0<h4:d≤10 of the nozzle diameter d of this burner center shower nozzle and the height h4 of spout straight section;
Distance h 1 between the vents face of the vents face of this burner center shower nozzle and this first burner outer shroud shower nozzle is: 0≤h1≤100mm;
Distance h 2 between the vents face of the vents face of this first burner outer shroud shower nozzle and this second burner outer shroud shower nozzle is 0≤h2≤60mm;
Distance h 3 between the vents face of this second burner outer shroud shower nozzle and the vents face of the 3rd burner outer shroud shower nozzle is 0≤h3≤60mm;
This burner cooling system comprises that an interior cooling room, that is arranged on the 3rd burner outer shroud shower nozzle outside is communicated with this interior cooling room and is looped around outer cooling room, the cooling room end face outside this interior cooling room; Division plate in the middle of one coolant inlet being communicated with this interior cooling room, a coolant outlet being communicated with this outer cooling room, a cooling room metal division plate, a cooling room inner ring top board, a cooling room outer ring top board, a cooling fluid access road, a cooling liquid outlet passage, a cooling room outer wall passage pipe and a cooling room upper channel; This coolant inlet is connected, is located at by pipeline the flange that this burner is connected with this vapourizing furnace respectively with coolant outlet; Refrigerant is entered on backward to this outer cooling room with certain flow velocity rotational flow after this interior cooling room and is entered this cooling room exit passageway by this coolant inlet passage.
2. load controllable hyperchannel liquid fuel gasification burner as claimed in claim 1, is characterized in that, the distance h 1 between the vents face of this burner center shower nozzle and the vents face of this first burner outer shroud shower nozzle is 1～20mm.
3. load controllable hyperchannel liquid fuel gasification burner as claimed in claim 1, is characterized in that, the distance h 2 between the vents face of this first burner outer shroud shower nozzle and the vents face of this second burner outer shroud shower nozzle is 1～20mm.
4. load controllable hyperchannel liquid fuel gasification burner as claimed in claim 1, is characterized in that, the distance h 3 between the vents face of this second burner outer shroud shower nozzle and the vents face of the 3rd burner outer shroud shower nozzle is 1～20mm.
5. load controllable hyperchannel liquid fuel gasification burner as claimed in claim 1; it is characterized in that; vaporized chemical enters vapourizing furnace from the centre channel of this burner with this second outer ring channel or the 3rd outer ring channel; liquid fuel enters vapourizing furnace by the first outer ring channel of this burner, and protection gas enters vapourizing furnace by the 3rd outer ring channel.
6. load controllable hyperchannel liquid fuel gasification burner as claimed in claim 1, is characterized in that, in this burner center shower nozzle, shrinking half-angle α is 5 °～30 °, and the outer side rake angle δ of this burner center shower nozzle is 30 °～85 °; In this first burner outer shroud shower nozzle, shrinking half-angle β is 5 °～45 °, and the outer side rake angle ε of this first burner outer shroud shower nozzle is 30 °～85 °; In this second burner outer shroud shower nozzle, shrinking half-angle μ is 5 °～45 °; The outer side rake angle τ of the 3rd burner outer shroud shower nozzle is 30 °～85 °.
7. load controllable hyperchannel liquid fuel gasification burner as claimed in claim 1, it is characterized in that, the internal diameter of the centrally-pivoted axle of this swirler is 0.2～0.8 with the ratio of external diameter, the height of this swirler is 5～100mm, the swirl vane number of this swirler is 2～20, and the thickness of described swirl vane is 1～25mm; Angle between described swirl vane and this centrally-pivoted axle is 15 °～75 °.
8. load controllable hyperchannel liquid fuel gasification burner as claimed in claim 1, is characterized in that, the applicable pressure of this burner is 0.1～15.0MPa.
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| CN201210153566.9A CN102659075B (en) | 2012-05-15 | 2012-05-15 | Load-controllable multichannel liquid fuel gasification burner |
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| CN105985808B (en) * | 2015-01-30 | 2022-12-23 | 国家能源投资集团有限责任公司 | Gasification burner and gasification furnace |
| CN105038857B (en) * | 2015-08-26 | 2017-05-31 | 上海泽玛克敏达机械设备有限公司 | The multifunctional nozzle and its fixed bed slag gasification furnace of fixed bed slag gasification furnace |
| CN105112104B (en) * | 2015-09-14 | 2017-09-22 | 西北化工研究院 | It is a kind of for multi-channel nozzle of polynary slurry gasification reactor and application thereof |
| CN105132038B (en) * | 2015-09-30 | 2018-11-02 | 西安航天源动力工程有限公司 | A kind of modified coal water slurry process burner |
| CN106939175B (en) * | 2017-04-19 | 2022-10-14 | 神华集团有限责任公司 | Gasification burner and gasification device |
| CN108148632A (en) * | 2018-02-13 | 2018-06-12 | 北京阳华科技有限公司 | A kind of adjustable gasification burner tip |
| CN111732974A (en) * | 2019-03-25 | 2020-10-02 | 华东理工大学 | Gasification burner, gasification furnace and gasification method |
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