CN204490822U - A kind of gasifier nozzle and containing its vapourizing furnace - Google Patents
A kind of gasifier nozzle and containing its vapourizing furnace Download PDFInfo
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- CN204490822U CN204490822U CN201420820591.2U CN201420820591U CN204490822U CN 204490822 U CN204490822 U CN 204490822U CN 201420820591 U CN201420820591 U CN 201420820591U CN 204490822 U CN204490822 U CN 204490822U
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- shower nozzle
- bottom face
- throat
- nozzle
- inner ring
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Abstract
The utility model discloses a kind of gasifier nozzle and the vapourizing furnace containing it.This gasifier nozzle comprise coaxial arrange a central jets, ring spray head, an outer shroud shower nozzle and be located at the outermost cooling-part of burner spout in an inner ring shower nozzle; Described central jets, inner ring shower nozzle, middle ring spray head and outer shroud shower nozzle setting gradually from inside to outside, forms ring passage and an outer ring channel in a centre channel, an inner ring channel; The spout end of described centre channel is straight section of channel; The outer angle of throat α of described inner ring shower nozzle, the outer angle of throat β of described middle ring spray head, the outer angle of throat γ of described outer shroud shower nozzle meets α > β > γ, and the outer angle of throat α of described inner ring shower nozzle is 60-800.The gasifier nozzle life-span that the utility model provides is long, substantially increases the security of vapourizing furnace.
Description
Technical field
The utility model relates to a kind of gasifier nozzle and the vapourizing furnace containing it.
Background technology
Gasification refers to that organism is in specific equipment (vapourizing furnace), under certain temperature and pressure, make organic matter and vaporized chemical (as steam, air or oxygen etc.) that series of chemical occurs, be that synthetic gas is (main containing CO and H by organic matter transformation
2deng inflammable gas) process.Synthetic gas is mainly used in synthetic ammonia, synthesizing methanol, synthetic natural gas, refinery hydrogen preparing, blast furnace reduction iron production chemical industry metallurgical industry, combined cycle generating unit and industry and domestic gas field.
Entrained flow bed gasification technology is the principle utilizing jet entrainment in hydromeehanics, liquid or particle and gasifying medium is sprayed in vapourizing furnace by nozzle at high speeds.Jet causes and to entrainment and the turbulent flow of height enhances mixing in vapourizing furnace, is conducive to fully carrying out of gasification reaction.The processing speed of entrained flow bed gasification technology is faster, and temperature is higher, and organic substance decomposing is more complete, cleaner environmental protection.Entrained flow bed gasification technology high temperature, high pressure, the feature such as to mix represent the main flow direction of gasification technology development.The wet feeding gasification technology of existing engineering construction mainly contains Texaco (GE) vapourizing furnace, multi-nozzle opposition gasifier, Tsing-Hua University's stove etc.
The mixed effect of burner liquid towards fuel and vaporized chemical affects huge, is one of key equipment.Because temperature in airflow bed gasification furnace is more than 1000 DEG C, flame temperature is more than 1600 DEG C, and pressure high (1-8MPa), so very high to the requirement of burner.There is the excessively near problem in flame zone distance burner end in current burner, easy generation burner end ablation, (in practical application, liquid fuel gasification burner generally uses just needs parking maintenance in about 3 months to cause burner lifetime, even occur running less than 1 month with regard to the situation of ablation burner), cause the serious consequences such as leakage.And the outermost layer passage of burner walks high speed oxygen in some prior aries, meeting and the synthetic gas (CO+H in vapourizing furnace
2) react, release amount of heat makes burner end face temperature too high, produces ablation phenomen, also can shorten the life-span of burner.
Therefore, excellent in the urgent need to atomization in practice, long-life liquid fuel gasification burner meets the operation of system long period stability and safety.
Utility model content
Technical problem to be solved in the utility model is of the prior art at high temperature life-span short, the defect that may cause the problems such as leakage of the burner in vapourizing furnace in order to overcome, and provides a kind of completely new gasifier nozzle and the vapourizing furnace containing it.The gasifier nozzle life-span that the utility model provides is long, substantially increases the security of vapourizing furnace.
The utility model provides a kind of gasifier nozzle, comprise coaxial arrange a central jets, ring spray head, an outer shroud shower nozzle and be located at the outermost cooling-part of burner spout in an inner ring shower nozzle; Described central jets, inner ring shower nozzle, middle ring spray head and outer shroud shower nozzle setting gradually from inside to outside, forms ring passage and an outer ring channel in a centre channel, an inner ring channel; The spout end of described centre channel is straight section of channel; The outer angle of throat α of described inner ring shower nozzle, the outer angle of throat β of described middle ring spray head, the outer angle of throat γ of described outer shroud shower nozzle meets α > β > γ, and the outer angle of throat α of described inner ring shower nozzle is 60-80 °.
Preferably, the outer angle of throat α of described inner ring shower nozzle meets 65 ° of < α≤75 °, and the outer angle of throat β of described middle ring spray head is 50-70 °, and the outer angle of throat γ of described outer shroud shower nozzle is 40-60 °.
More preferably, the outer angle of throat β of described middle ring spray head meets 55 ° of < β≤65 °, and the outer angle of throat γ of described outer shroud shower nozzle meets 45 ° of < γ≤55 °.
Preferably, the bottom face of described central jets, the bottom face of described inner ring shower nozzle, the bottom face of described middle ring spray head is gradual indentation arrangement relative to the bottom face of described outer shroud shower nozzle, namely, the bottom face of described central jets is relative to the indent x of the bottom face of described outer shroud shower nozzle, the bottom face of described inner ring shower nozzle meets following condition relative to the indent y of the bottom face of described outer shroud shower nozzle and the bottom face of described middle ring spray head relative to the indent z of the bottom face of described outer shroud shower nozzle: x > y > z, be more preferably x≤40mm, y≤10mm, z≤5mm.
The utility model additionally provides a kind of vapourizing furnace comprising above-mentioned gasifier nozzle.
Positive progressive effect of the present utility model is: the gasifier nozzle life-span that the utility model provides is long, liquid fuel and vaporized chemical can be made to obtain good mixing effect by the use of this burner, can improve the security of vapourizing furnace on the whole.
Accompanying drawing explanation
Fig. 1 is the structural representation of the gasifier nozzle of embodiment 1 of the present utility model.
Fig. 2 is the oral structure enlarged diagram of the gasifier nozzle of embodiment 1 of the present utility model.
Embodiment
Lift several preferred embodiment below, and come by reference to the accompanying drawings clearlyer intactly the utility model to be described.
Embodiment 1
As shown in Figure 1, in the present embodiment, described gasifier nozzle to comprise in coaxial central jets 5, the inner ring shower nozzle 6, arranged ring spray 7, an one outer shroud shower nozzle 8 and is located at the outermost cooling-part 9 of burner spout; Described central jets 5, inner ring shower nozzle 6, middle ring spray 7 and outer shroud shower nozzle 8 setting gradually from inside to outside, forms ring passage 3 and an outer ring channel 4 in centre channel 1, inner ring channel 2; The spout end of described centre channel 1 is straight section of channel; The outer angle of throat α of described inner ring shower nozzle 6 is 70 °, and the outer angle of throat β of described middle ring spray 7 is 60 °, and the outer angle of throat γ of described outer shroud shower nozzle 8 is 50 °.
As shown in Figure 2, the bottom face of the bottom face of described central jets 5, the bottom face of described inner ring shower nozzle 6, described middle ring spray 7 is gradual indentation arrangement relative to the bottom face of described outer shroud shower nozzle 8, namely, the bottom face of described central jets 5 relative to the indent x of the bottom face of described outer shroud shower nozzle 8, the bottom face of described inner ring shower nozzle 6 relative to the bottom face of the indent y of the bottom face of described outer shroud shower nozzle 8 and described middle ring spray 7 relative to the indent z of the bottom face of described outer shroud shower nozzle 8 is: x=40mm, y=10mm, z=5mm.
During the gasifier nozzle using the present embodiment to provide, vaporized chemical passes into described centre channel 1 and middle ring passage 3, and liquid fuel passes into described inner ring channel 2 and outer ring channel 4.In the present embodiment, described vaporized chemical to be volumetric concentration be 98% pure oxygen, described liquid fuel is the coal water slurry of 61wt%.
The parameter relevant to gasifier nozzle is as follows: coal water slurry (50 DEG C), the coal water slurry flow 45.87m of inner ring channel 2
3/ h, the coal water slurry flow 11.47m of outer ring channel 4
3/ h (20% of total amount); Pure oxygen (25 DEG C), the oxygen flow 4873Nm of centre channel 1
3/ h (18% of total amount), the oxygen flow 22199Nm of middle ring passage 3
3/ h; Gasifier operation pressure is 6.5MPa (G).
The oxygen velocity of centre channel 1: 126.74m/s; The coal water slurry speed of inner ring channel 2: 8.38m/s; The oxygen velocity of middle ring passage 3: 122.14m/s; The coal water slurry speed of outer ring channel 4: 2.36m/s.
After gasifier nozzle described in the present embodiment is installed on vapourizing furnace disclosed in patent 98110616.1, when fuel be concentration is the coal water slurry of 61wt%, with the pure oxygen of 98% (v/v) for vaporized chemical, gasification result is that in synthetic gas, effective gas component reaches 84% (v/v), lime-ash carbon residue is 3wt%, burner can reach 1 year continuous work-ing life, meets the requirement that coal water slurry gasification long period stability and safety is run completely.
Embodiment 2 ~ 5
Embodiment 2 ~ 5 is except the structural parameter of gasifier nozzle are different from embodiment 1 (specifically in table 1), remaining device parameter and reaction conditions are all identical with embodiment 1, final test effect is also similar to Example 1, gasifier nozzle long service life, substantially increases the security of vapourizing furnace.
The structural parameter of the gasifier nozzle of table 1 embodiment 2 ~ 5
| The outer angle of throat α of inner ring shower nozzle | The outer angle of throat β of middle ring spray head | The outer angle of throat γ of outer shroud shower nozzle | |
| Embodiment 2 | 60° | 50° | 40° |
| Embodiment 3 | 65° | 55° | 45° |
| Embodiment 4 | 75° | 65° | 55° |
| Embodiment 5 | 80° | 70° | 60° |
Claims (6)
1. a gasifier nozzle, is characterized in that, it comprise coaxial arrange a central jets, ring spray head, an outer shroud shower nozzle and be located at the outermost cooling-part of burner spout in an inner ring shower nozzle; Described central jets, inner ring shower nozzle, middle ring spray head and outer shroud shower nozzle setting gradually from inside to outside, forms ring passage and an outer ring channel in a centre channel, an inner ring channel; The spout end of described centre channel is straight section of channel; The outer angle of throat α of described inner ring shower nozzle, the outer angle of throat β of described middle ring spray head, the outer angle of throat γ of described outer shroud shower nozzle meets α > β > γ, and the outer angle of throat α of described inner ring shower nozzle is 60-80 °.
2. gasifier nozzle as claimed in claim 1, it is characterized in that, the outer angle of throat α of described inner ring shower nozzle meets 65 ° of < α≤75 °, and the outer angle of throat β of described middle ring spray head is 50-70 °, and the outer angle of throat γ of described outer shroud shower nozzle is 40-60 °.
3. gasifier nozzle as claimed in claim 2, is characterized in that, the outer angle of throat β of described middle ring spray head meets 55 ° of < β≤65 °, and the outer angle of throat γ of described outer shroud shower nozzle meets 45 ° of < γ≤55 °.
4. gasifier nozzle as claimed in claim 1, it is characterized in that, the bottom face of described central jets, the bottom face of described inner ring shower nozzle, the bottom face of described middle ring spray head is gradual indentation arrangement relative to the bottom face of described outer shroud shower nozzle, the bottom face of described central jets is relative to the indent x of the bottom face of described outer shroud shower nozzle, the bottom face of described inner ring shower nozzle meets following condition relative to the indent y of the bottom face of described outer shroud shower nozzle and the bottom face of described middle ring spray head relative to the indent z of the bottom face of described outer shroud shower nozzle: x > y > z.
5. gasifier nozzle as claimed in claim 4, it is characterized in that, the bottom face of described central jets meets relative to the indent z of the bottom face of described outer shroud shower nozzle relative to the indent y of the bottom face of described outer shroud shower nozzle and the bottom face of described middle ring spray head relative to the indent x of the bottom face of described outer shroud shower nozzle, the bottom face of described inner ring shower nozzle: x≤40mm, y≤10mm, z≤5mm.
6. a vapourizing furnace, is characterized in that: this vapourizing furnace comprises the gasifier nozzle according to any one of Claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420820591.2U CN204490822U (en) | 2014-12-18 | 2014-12-18 | A kind of gasifier nozzle and containing its vapourizing furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420820591.2U CN204490822U (en) | 2014-12-18 | 2014-12-18 | A kind of gasifier nozzle and containing its vapourizing furnace |
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| Publication Number | Publication Date |
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| CN204490822U true CN204490822U (en) | 2015-07-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104498099A (en) * | 2014-12-18 | 2015-04-08 | 华东理工大学 | Gasifier burner and application method thereof, and gasifier containing gasifier burner |
-
2014
- 2014-12-18 CN CN201420820591.2U patent/CN204490822U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104498099A (en) * | 2014-12-18 | 2015-04-08 | 华东理工大学 | Gasifier burner and application method thereof, and gasifier containing gasifier burner |
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| GR01 | Patent grant |