CN105694983B - Spiral burner cover - Google Patents
Spiral burner cover Download PDFInfo
- Publication number
- CN105694983B CN105694983B CN201410685329.6A CN201410685329A CN105694983B CN 105694983 B CN105694983 B CN 105694983B CN 201410685329 A CN201410685329 A CN 201410685329A CN 105694983 B CN105694983 B CN 105694983B
- Authority
- CN
- China
- Prior art keywords
- coil pipe
- spiral
- burner
- nozzle cover
- disk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 239000002826 coolant Substances 0.000 claims abstract description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 21
- 239000011248 coating agent Substances 0.000 claims description 21
- 238000000576 coating method Methods 0.000 claims description 21
- 239000003063 flame retardant Substances 0.000 claims description 21
- 244000309464 bull Species 0.000 claims description 3
- 238000002309 gasification Methods 0.000 abstract description 10
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 239000000498 cooling water Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003818 cinder Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003250 coal slurry Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Furnace Details (AREA)
- Gas Burners (AREA)
Abstract
The invention discloses a spiral burner nozzle cover, which belongs to the field of entrained flow bed burners and comprises an input pipeline, an output pipeline and a spiral coil pipe, wherein two ends of the spiral coil pipe are communicated with the input pipeline and the output pipeline, a cooling medium is arranged in the spiral coil pipe, the spiral coil pipe comprises a cover surface section coil pipe for cooling a burner and a disc surface section coil pipe for cooling a hearth wall, and an annular disc surface formed by the disc surface section coil pipe is kept horizontal to the wall surface of the hearth wall. The spiral burner cover provided by the invention has the advantages that the disk surface pipeline capable of cooling the wall surface of the hearth is additionally arranged, so that the possibility of burning the wall surface of the hearth is greatly reduced, and the service life of the gasification furnace is prolonged.
Description
Technical field
The present invention relates to air flow bed burner arts, more particularly to a kind of spiral nozzle cover.
Background technology
The coal gasification reaction of air flow bed typically carries out in the environment of high temperature and pressure, fuel, such as fine coal, coal slurry,
Such as oxygen, empty gas and water or water vapour, are sprayed into gasification furnace burner hearth by burner/burner, it is anti-that imperfect combustion occur
It answers, temperature is generally at 1400 DEG C or so.Due to gas in the jet entrainment effect and stove of the high-velocity fluid of burner/burner ejection
The complexity of body ingredient is located at burner/burner on gasification furnace and is easy scaling loss, and the scaling loss of burner/burner will influence entirely
The long period of gasifier bed is safely and steadily run.
To solve the above-mentioned problems, it will usually in the periphery setting nozzle cover of burner/burner, and muffle cover is can be described as,
For protecting burner/burner, nozzle cover to be usually mounted on the wall surface of burner hearth.Chinese patent literature Authorization Notice No.
CN202359081U discloses a kind of nozzle cover for powder coal gasification furnace burner, and it is ring-like cold that the inside of nozzle cover is fixed with multilayer
But it manages, the cross sectional arrangements of the ring-like cooling tube of multilayer are in inverted trapezoidal.Though the burner of this structure can effectively prevent the blocking of cooling tube,
But since the section of multilayer cooling tube is in substantially inverted trapezoidal or taper, and burner/burner should not stretch into gasification furnace burner hearth mistake
It is more, therefore due to the jet entrainment effect of high-velocity fluid, it can make burning of the jet stream that the fluid of part high speed is formed to nozzle periphery
Burner hearth wall surface near mouth cover is heated so that the burner hearth wall surface at where burner/burner is than other positions burner hearth wall surface
Temperature is higher by very much, and this temperature difference easily leads to the damage of burner hearth wall surface, and burner hearth wall surface is typically global formation, damage
After be difficult to repair.
Invention content
In order to overcome the deficiencies of existing technologies, technical problem to be solved by the present invention lies in propose a kind of spiral burner
Cover can significantly reduce the possibility that burner hearth wall surface is burnt by increasing to the disk pipeline that burner hearth wall surface cools down
Property, improve the service life of gasification furnace.
For this purpose, the present invention uses following technical scheme：
A kind of spiral nozzle cover provided by the invention, including input channel, output channel and spiral coil, the spiral shell
The both ends of capstan pipe are connected with the input channel, the output channel, and the spiral coil is internally provided with cooling medium,
The spiral coil includes the cover section coil pipe for cooling down burner and the disk section coil pipe for cooling furnace bore wall, the disk
The wall surface of annular disk surfaces and the hearth wall that face section coil pipe is formed keeps horizontal.
The further technical solution of the present invention：The cover section coil pipe includes straightway coil pipe and changeover portion coil pipe, described
The both ends of changeover portion coil pipe are connected with the straightway coil pipe and the changeover portion coil pipe respectively.
The further technical solution of the present invention：The burner is located at the inside of the spiral coil, the burner
Opening is positioned at the inside of the changeover portion coil pipe.
The further technical solution of the present invention：The inside of the cover section coil pipe, the disk section coil pipe side towards the fire set
It is equipped with fixing piece.
The further technical solution of the present invention：The fixing piece be one kind either in hexsteel of bitch, anchor studs or
It is a variety of.
The further technical solution of the present invention：The spiral coil is formed by one or bull pipeline helical disk system.
The further technical solution of the present invention：The inside of the cover section coil pipe, the disk section coil pipe side towards the fire also
It is provided with flame retardant coating, the fixing piece is fixed on the inside of the flame retardant coating.
The further technical solution of the present invention：The flame retardant coating is configured to the structure being made of SiC.
The further technical solution of the present invention：The cross section of the straightway coil pipe is round, ellipse or square.
The further technical solution of the present invention：It is provided with flame retardant coating between the disk section coil pipe and the hearth wall, institute
The annular disk surfaces for stating the formation of disk section coil pipe are in contact by the flame retardant coating with the wall surface of the hearth wall.
Beneficial effects of the present invention are：
Spiral nozzle cover provided by the invention, provided with can cool down burner cover section coil pipe and being capable of cooling furnace
The disk section coil pipe of bore wall, therefore this nozzle cover has excellent cooling capacity to burner and hearth wall, has been improved particularly stove
The high temperature tolerance ability of bore wall, extends the service life of gasification furnace.The annular disk surfaces and hearth wall that disk section coil pipe is formed
Wall surface keeps horizontal, increases wall surface shielded area of the nozzle cover to hearth wall, can effectively prevent melt cinder and be flowed into nozzle cover,
Avoid influencing the jet stream effect of burner.
Description of the drawings
Fig. 1 is the sectional view for the spiral nozzle cover that the specific embodiment of the invention provides；
Fig. 2 is the stereogram for the spiral nozzle cover that the specific embodiment of the invention provides.
In figure：
1, input channel；2, output channel；3, cover section coil pipe；4, disk section coil pipe；5, hearth wall；31, straightway disk
Pipe；32, changeover portion coil pipe；6, burner；7, fixing piece；8, flame retardant coating.
Specific implementation mode
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
As illustrated in fig. 1 and 2, a kind of spiral nozzle cover provided in the present embodiment one, including input channel 1, efferent duct
The both ends of road 2, spiral coil and burner 6, spiral coil are connected with input channel 1, output channel 2, the input pipe
Road 1, the output channel 2 and spiral coil are internally provided with cooling medium, and cooling medium can be with cooling water, and cooling water is from defeated
Enter the inflow of pipeline 1, after spiral coil, is flowed out from output channel 2, burner 6 is located at the inside of spiral coil, burner
6 jet streams sprayed are cooled down, by the cooling effect of cooling medium inside spiral coil to avoid the damage of burner 6.
Spiral coil includes cover section coil pipe 3 and disk section coil pipe 4, liquid outlet and the output channel 2 of cover section coil pipe 3
It is connected, the liquid inlet of disk section coil pipe 4 is connected with input channel 1, and cover section coil pipe 3 is connected with disk section coil pipe 4,
Cover section coil pipe 3 is used for cooling furnace bore wall 5 for cooling down burner 6, disk section coil pipe 4.Cooling water is flowed into from input channel 1,
Mainly hearth wall 5 is cooled down by disk section coil pipe 4, mainly burner 6 is cooled down using cover section coil pipe 3,
Finally flowed out from output channel 2.It can be seen that the flow of cooling water direction in spiral coil is just penetrated with the ejection of burner 6
The direction of stream can improve the cooling effect of nozzle cover on the contrary, conducive to adverse current is formed.Disk section coil pipe 4 formed annular disk surfaces with
The wall surface of hearth wall 5 keeps horizontal, increases wall surface shielded area of the nozzle cover to hearth wall 5, can effectively prevent melt cinder inflow
Into nozzle cover.
Further technical solution in the present embodiment, cover section coil pipe 3 include straightway coil pipe 31 and changeover portion coil pipe 32,
The both ends of changeover portion coil pipe 32 are connected with straightway coil pipe 31 and changeover portion coil pipe 32 respectively.Wherein, 31, straightway coil pipe
The straightway that cross section is round ellipse or square is could be provided as according to the cooling effect difference needed for different gasification furnaces
Coil pipe 31；It the longitudinal section of changeover portion coil pipe 32 can be for the trapezoidal of symmetrical arc side, or trapezoidal, this shape is main
The jet stream jet port that a burner 6 is formed for 3 lower part of cover section coil pipe has certain guiding role to jetting stream.
Positioned at the inside of changeover portion coil pipe 32, this setup is not only improved to be sprayed the opening of burner 6 from burner 6
Jet stream can quickly enter gasification furnace, be also beneficial to straightway coil pipe 31 to other positions in addition to the opening of burner 6 into
Row cooling is handled.
Further technical solution in the present embodiment, the inside of cover section coil pipe 3, the side towards the fire of disk section coil pipe 4 are set
It is equipped with the fixing piece 7 for fixing spiral coil, fixing piece 7 is one or more of bitch, anchor studs or hexsteel,
Fixing piece 7 is arranged to be more conducive to enhance the two neighboring fastness and stability being fixedly connected of spiral coil compared to other modes,
So that nozzle cover integral reinforcing ability substantially enhances.
Further technical solution in the present embodiment, spiral coil are configured to by one or bull pipeline helical disk system
Made of structure, this discharge plate structure is conducive to water flow and is evenly distributed with, to realizing the uniform decrease in temperature of burner 6.
Further technical solution in the present embodiment, the inside of cover section coil pipe 3, the side towards the fire of disk section coil pipe 4 are also
It is provided with flame retardant coating 8, fixing piece 7 is fixed on the inside of flame retardant coating 8.Flame retardant coating 8 can enhance the ability of nozzle cover tolerance high temperature, and
Fixing piece 7 is fixed on the inside of flame retardant coating 8 so that flame retardant coating 8 and fixing piece 7 are solidified as a whole, and it is whole to further enhance nozzle cover
The fastness and stability of body.Further preferential, flame retardant coating 8 is configured to by the SiC structures formed or other refractory materials
The structure of composition, SiC material is not only resistant to the very competent of high temperature, but also quality is relatively light.
Preferred technical solution in the present embodiment is provided with flame retardant coating, disk between disk section coil pipe 4 and hearth wall 5
Section coil pipe 4 formed annular disk surfaces be in contact with the wall surface of hearth wall 5 by flame retardant coating, i.e., the two of flame retardant coating side respectively with
Disk section coil pipe 4 formed annular disk surfaces, hearth wall 5 wall surface be in contact, this structure can by with disk section coil pipe 4
Contact heat is transmitted, and improves cooling effect of the disk section coil pipe 4 to hearth wall 5, and an effect of flame retardant coating 8 is stove in order to prevent
Bore wall 5 scorch or rub low-quality disk face section coil pipe 4；Its another effect is so that clinker is along nozzle cover disk outer and stove
Refractory matter circle between bore wall 5 prevents clinker from flowing into gap between the two toward flowing down.
The present invention is described with reference to the preferred embodiments, and those skilled in the art know, is not departing from the present invention's
In the case of spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.The present invention is not by this
The limitation of specific embodiment disclosed in place, other embodiments fallen into claims hereof belong to protection of the present invention
Range.
Claims (10)
1. a kind of spiral nozzle cover, including input channel (1), output channel (2) and spiral coil, the spiral coil
Both ends are connected with the input channel (1), the output channel (2), and the spiral coil is internally provided with cooling medium,
It is characterized in that：
The spiral coil includes the cover section coil pipe (3) for cooling down burner (6) and the disk for cooling furnace bore wall (5)
Section coil pipe (4)；
The wall surface of the annular disk surfaces that the disk section coil pipe (4) is formed and the hearth wall (5) keeps horizontal.
2. spiral nozzle cover according to claim 1, it is characterised in that：
The cover section coil pipe (3) includes straightway coil pipe (31) and changeover portion coil pipe (32)；
The both ends of the changeover portion coil pipe (32) are connected with the straightway coil pipe (31) and the disk section coil pipe (4) respectively
It is logical.
3. spiral nozzle cover according to claim 2, it is characterised in that：
The burner (6) is located at the inside of the spiral coil；With
The opening of the burner (6) is located at the inside of the changeover portion coil pipe (32).
4. spiral nozzle cover according to claim 1, it is characterised in that：
The inside of the cover section coil pipe (3), the disk section coil pipe (4) side towards the fire be provided with fixing piece (7).
5. spiral nozzle cover according to claim 4, it is characterised in that：
The fixing piece (7) is one or more of bitch, anchor studs or hexsteel.
6. spiral nozzle cover according to claim 1, it is characterised in that：
The spiral coil is configured to the structure made of one or bull pipeline helical disk system.
7. spiral nozzle cover according to claim 4, it is characterised in that：
The inside of the cover section coil pipe (3), the disk section coil pipe (4) side towards the fire be additionally provided with flame retardant coating (8)；With
The fixing piece (7) is fixed on the inside of the flame retardant coating (8).
8. spiral nozzle cover according to claim 7, it is characterised in that：
The flame retardant coating (8) is configured to the structure being made of SiC.
9. spiral nozzle cover according to claim 2, it is characterised in that：
The cross section of the straightway coil pipe (31) is round, ellipse or square.
10. spiral nozzle cover according to claim 1, it is characterised in that：
It is provided with flame retardant coating between the disk section coil pipe (4) and the hearth wall (5)；
The annular disk surfaces that the disk section coil pipe (4) is formed are in contact by the flame retardant coating with the wall surface of the hearth wall (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410685329.6A CN105694983B (en) | 2014-11-25 | 2014-11-25 | Spiral burner cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410685329.6A CN105694983B (en) | 2014-11-25 | 2014-11-25 | Spiral burner cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105694983A CN105694983A (en) | 2016-06-22 |
| CN105694983B true CN105694983B (en) | 2018-08-17 |
Family
ID=56940758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410685329.6A Active CN105694983B (en) | 2014-11-25 | 2014-11-25 | Spiral burner cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105694983B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109181777B (en) * | 2018-11-05 | 2024-03-29 | 华能（天津）煤气化发电有限公司 | Gasification furnace burner protecting cover based on IGCC |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06306373A (en) * | 1993-04-21 | 1994-11-01 | Mitsubishi Heavy Ind Ltd | Spouted-bed coal gasifier |
| WO2008087133A1 (en) * | 2007-01-17 | 2008-07-24 | Shell Internationale Research Maatschappij B.V. | Gasification reactor |
| CN202786144U (en) * | 2012-05-28 | 2013-03-13 | 张清虎 | Flame separation cover with air flow protection |
| CN203545952U (en) * | 2013-10-31 | 2014-04-16 | 武汉锅炉集团超顺锅炉设备制造有限公司 | Burner cover of gasification furnace |
| CN104099135A (en) * | 2014-07-22 | 2014-10-15 | 中国华能集团清洁能源技术研究院有限公司 | High-temperature resistant burner shield for gasification furnace |
| CN203878120U (en) * | 2014-03-26 | 2014-10-15 | 杭州新际能源科技有限公司 | Two-stage gasification furnace burner cover |
| CN204237757U (en) * | 2014-11-25 | 2015-04-01 | 航天长征化学工程股份有限公司 | A kind of spiral nozzle cover |
-
2014
- 2014-11-25 CN CN201410685329.6A patent/CN105694983B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06306373A (en) * | 1993-04-21 | 1994-11-01 | Mitsubishi Heavy Ind Ltd | Spouted-bed coal gasifier |
| WO2008087133A1 (en) * | 2007-01-17 | 2008-07-24 | Shell Internationale Research Maatschappij B.V. | Gasification reactor |
| CN202786144U (en) * | 2012-05-28 | 2013-03-13 | 张清虎 | Flame separation cover with air flow protection |
| CN203545952U (en) * | 2013-10-31 | 2014-04-16 | 武汉锅炉集团超顺锅炉设备制造有限公司 | Burner cover of gasification furnace |
| CN203878120U (en) * | 2014-03-26 | 2014-10-15 | 杭州新际能源科技有限公司 | Two-stage gasification furnace burner cover |
| CN104099135A (en) * | 2014-07-22 | 2014-10-15 | 中国华能集团清洁能源技术研究院有限公司 | High-temperature resistant burner shield for gasification furnace |
| CN204237757U (en) * | 2014-11-25 | 2015-04-01 | 航天长征化学工程股份有限公司 | A kind of spiral nozzle cover |
Non-Patent Citations (2)
| Title |
|---|
| 《壳牌煤气化炉Ⅱ代烧嘴罩的设计特点》;李亚东;《化肥设计》;20091231;第47卷(第6期);第35-37页 * |
| 《壳牌煤气化炉烧嘴罩失效原因分析及应对策略》;徐才福等;《化肥设计》;20111030;第49卷(第5期);第23-28页 * |
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| Publication number | Publication date |
|---|---|
| CN105694983A (en) | 2016-06-22 |
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