CN209445349U - A kind of composite rotating coupling nonuniform air distribution plate - Google Patents
A kind of composite rotating coupling nonuniform air distribution plate Download PDFInfo
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- CN209445349U CN209445349U CN201820172372.6U CN201820172372U CN209445349U CN 209445349 U CN209445349 U CN 209445349U CN 201820172372 U CN201820172372 U CN 201820172372U CN 209445349 U CN209445349 U CN 209445349U
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Abstract
The utility model discloses a kind of composite rotatings to couple nonuniform air distribution plate, and air distribution plate ontology is divided into four annular regions from inside to outside, and four annular regions are respectively first area, second area, third region and the fourth region from inside to outside；Multiple ventilation holes are evenly distributed in the first area, second area, third region and the fourth region, ventilation hole is rounded, the percent opening of the respective region inner vent of first area, second area, third region and the fourth region is identical, ventilation hole is threaded hole, and ventilation hole is divided into left-handed ventilation hole and dextrorotation ventilation hole, the ventilation hole between adjacent area is oppositely oriented.The characteristic that the air distribution plate is sequentially increased using air distribution plate percent opening with air-flow from inside to outside is effectively improved the distribution of burner hearth interior air-flow, reduces leakage slag, it is different using aperture inward turning direction simultaneously, the phenomenon that making in burner hearth without apparent vortex phenomenon occur, improving material gasification efficiency in burner hearth, reduce coking.
Description
Technical field
The utility model relates to a kind of airflow distribution device, specifically a kind of composite rotating couples nonuniform air distribution plate.
Background technique
Biomass energy is the third-largest energy for being only second to coal and petroleum in China, accounts for about 15% in whole energy consumptions,
It can not only be used for fuel, be the renewable energy that can uniquely transport and store but also as the clear energy sources of power generation.Due to fossil energy
Source reserves are limited, exploit difficulty and risk mouth benefit increases, and along with serious pollution problem during exploitation utilization, therefore
Biomass energy is paid special attention to, and main biomass utilization approach has direct combustion power generation, cogeneration of heat and power and gasification hair
Electricity, gas supply heat supply.
Circulating fluidized bed technique is the up-and-coming new combustion technology that the eighties rapidly develop, it has routine concurrently
The advantages of circulating fluidized bed combustion and coal dust firing, and customer service disadvantage.The combustion technology is had conducted extensive research both at home and abroad,
It has made great progress.
Biomass Gasification in Circulating Fluidized Bed boiler can be used a variety of biomass materials, easily expansion scale, can be applied to existing
Power station, low cost.Important composition position of the air-distribution device as Biomass Gasification in Circulating Fluidized Bed equipment mainly has function
Can have: first is that material static in supporting bed;Second is that generating certain resistance to the air-flow for flowing through air-distribution device, guarantee cloth wind dress
It sets overdraught to be uniformly distributed, maintains stable goods fluid.In general, air-distribution device working performance directly to particle mixing,
Flowing and fluidized-bed combustion boiler design and safe operation etc. have an impact, therefore reasonable cloth wind mode should be able to guarantee an endoparticle
It is evenly distributed, well mixes and facilitates discharge etc..But it is usually led since fluidisation is uneven in the operational process of the prior art
Goods fluid is uneven in cause gasification hearth, and bias current once occurs in bed, and air-flow will more be intended to the smaller place of resistance, so that
Region is vortexed rollover phenomenon, forms dead zone elsewhere, reduces gasification efficiency and increases power consumption.Can also when even situation is serious
Situations such as appearance coking, blast cap serious wear, heating surface wear is serious, leaks slag.
In order to improve recirculating fluidized bed burner hearth endoparticle fluidized state, at present there are two types of method it is popular, one is
Change the percent opening of air distribution plate or change air distribution plate aperture and directly pass through, one is arrangement, the shapes etc. that change air distribution plate.This two
Kind method all can be only applied to small-sized fluidized bed boiler, lower to the requirement of burner hearth inventory, for some large-size circulating fluidized bed
Boiler effect is not too obviously, to design entire boiler shape and cost requirement is higher.Therefore side popular at present is combined
Method it is imperative to develop a kind of non-homogeneous aperture air distribution plate of composite rotating coupling, it may have important economic benefit.
Utility model content
The purpose of this utility model is to provide a kind of composite rotatings to couple nonuniform air distribution plate, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the utility model provides the following technical solutions:
A kind of composite rotating couples nonuniform air distribution plate, including air distribution plate ontology, the air distribution plate ontology diameter are
5.25mm, air distribution plate ontology are divided into four annular regions from inside to outside, four annular regions be respectively from inside to outside first area,
Second area, third region and the fourth region；Uniformly divide in the first area, second area, third region and the fourth region
Multiple ventilation holes are furnished with, ventilation hole is rounded, and first area, second area, third region and the fourth region are respectively led in region
The percent opening of air holes is identical, and ventilation hole is threaded hole, and ventilation hole is divided into left-handed ventilation hole and dextrorotation ventilation hole, between adjacent area
Ventilation hole it is oppositely oriented.
As a further solution of the present invention: the ventilation hole upper end is arranged gas outlet, ventilation hole lower end be arranged into
Ventilation hole in port, first area and third region is dextrorotation ventilation hole, and the ventilation hole in second area and the fourth region is
Left-handed ventilation hole.
The first area, second area open interior rate are identical as a further solution of the present invention, the firstth area
Spacing in domain, second area between adjacent ventilation hole is 100mm, and third region is identical with the fourth region open interior rate, third
Spacing in region and the fourth region between adjacent ventilation hole is 50mm.
The first area, second area open interior rate are 10% as a further solution of the present invention, third
Region and the fourth region open interior rate are 20%.
Compared with prior art, the utility model has the beneficial effects that the air distribution plate is using air distribution plate percent opening with air-flow
The characteristic being sequentially increased from inside to outside is effectively improved the distribution of burner hearth interior air-flow, reduces leakage slag, while not using aperture inward turning direction
Together, the phenomenon that making in burner hearth without apparent vortex phenomenon occur, improving material gasification efficiency in burner hearth, reduce coking.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that composite rotating couples nonuniform air distribution plate.
Fig. 2 is the structural schematic diagram that composite rotating couples left-handed ventilation hole in nonuniform air distribution plate.
Fig. 3 is the structural schematic diagram that composite rotating couples dextrorotation ventilation hole in nonuniform air distribution plate.
In figure: 1- air distribution plate ontology；The first area 2-；3- second area；4- third region；5- the fourth region；6- ventilation
Hole；The left-handed ventilation hole of 601-；602- dextrorotation ventilation hole.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1~3, in the utility model embodiment, a kind of composite rotating couples nonuniform air distribution plate, including cloth wind
Plate ontology 1；1 diameter of air distribution plate ontology is 5.25mm, and air distribution plate ontology 1 is divided into four annular regions from inside to outside, four
Annular region is respectively first area 2, second area 3, third region 4 and the fourth region 5 from inside to outside；The first area 2,
Multiple ventilation holes 6 are evenly distributed in second area 3, third region 4 and the fourth region 5, ventilation hole 6 is rounded, first area
2, second area 3, third region 4 are identical with the percent opening of the respective region inner vent 6 of the fourth region 5, and ventilation hole 6 is spiral
Hole, and ventilation hole 6 divides for left-handed ventilation hole 601 and dextrorotation ventilation hole 602, the ventilation hole 6 between adjacent area is oppositely oriented；It is described
First area 2,3 open interior rate of second area are identical, and the spacing in first area 2, second area 3 between adjacent ventilation hole 6 is
100mm, third region 4 is identical with 5 open interior rate of the fourth region, in third region 4 and the fourth region 5 between adjacent ventilation hole 6
Spacing be 50mm, percent opening successively increases from inside to outside with air flow rate；6 radius of ventilation hole is 50mm, along air-flow
First area 2,3 open interior rate of second area are 10% from inside to outside in direction, and third region 4 and 5 open interior rate of the fourth region are
20%.
Gas outlet is arranged in 6 upper end of ventilation hole, and air inlet, first area 2 and third region 4 is arranged in 6 lower end of ventilation hole
Interior ventilation hole 6 is dextrorotation ventilation hole 602, and the air-flow flowed out from first area 2, third region 4 is dextrorotation wind, second area 3
It is left-handed ventilation hole 601 with the ventilation hole 6 in the fourth region 5, the air-flow flowed out from second area 3, the fourth region 5 is left-handed
Wind, air-flow blow out dextrorotation wind and left-handed wind through air distribution plate 1 from air compartment, uniformly mix in burner hearth with material, improve gasification efficiency,
Simultaneously when air-flow flows through air distribution plate 1, since first area 2,3 open interior rate of second area are less than 4 and of third region in air distribution plate 1
The percent opening of the fourth region 5 makes the inside faster flow slowing down of flow velocity, and the air-flow that outside flow velocity on the other hand can be made slower adds
Speed reaches the 1 uniform effect of top hearth region air flow method of air distribution plate.
The working principle of the utility model is: from second area 3, the fourth region 5 flow out air-flow be left-handed wind, air-flow from
Air compartment blows out dextrorotation wind and left-handed wind through air distribution plate 1, uniformly mixes in burner hearth with material, improves gasification efficiency, while working as gas
Stream flows through air distribution plate 1, since first area 2,3 open interior rate of second area are less than third region 4 and the fourth region in air distribution plate 1
5 percent opening makes the inside faster flow slowing down of flow velocity, and the air-flow that outside flow velocity on the other hand can be made slower accelerates, and reaches
The 1 uniform effect of top hearth region air flow method of air distribution plate.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (4)
1. a kind of composite rotating couples nonuniform air distribution plate, including air distribution plate ontology (1), which is characterized in that the air distribution plate sheet
Body (1) diameter is 5.25mm, and air distribution plate ontology (1) is divided into four annular regions from inside to outside, and four annular regions are from inside to outside
Respectively first area (2), second area (3), third region (4) and the fourth region (5)；The first area (2), the secondth area
It being evenly distributed with multiple ventilation holes (6) in domain (3), third region (4) and the fourth region (5), ventilation hole (6) is rounded, and first
Respectively the percent opening of region inner vent (6) is identical for region (2), second area (3), third region (4) and the fourth region (5),
Ventilation hole (6) is threaded hole, and ventilation hole (6) is divided into left-handed ventilation hole (601) and dextrorotation ventilation hole (602), between adjacent area
Ventilation hole (6) it is oppositely oriented.
2. a kind of composite rotating according to claim 1 couples nonuniform air distribution plate, which is characterized in that the ventilation hole
(6) gas outlet is arranged in upper end, and air inlet, the ventilation hole in first area (2) and third region (4) is arranged in ventilation hole (6) lower end
It (6) is dextrorotation ventilation hole (602) that the ventilation hole (6) in second area (3) and the fourth region (5) is left-handed ventilation hole (601).
3. a kind of composite rotating according to claim 1 couples nonuniform air distribution plate, which is characterized in that the first area
(2), second area (3) open interior rate is identical, the spacing in first area (2), second area (3) between adjacent ventilation hole (6)
For 100mm, third region (4) are identical with the fourth region (5) open interior rate, adjacent logical in third region (4) and the fourth region (5)
Spacing between air holes (6) is 50mm.
4. a kind of composite rotating according to claim 1 couples nonuniform air distribution plate, which is characterized in that the first area
(2), second area (3) open interior rate is 10%, and third region (4) and the fourth region (5) open interior rate are 20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820172372.6U CN209445349U (en) | 2018-02-01 | 2018-02-01 | A kind of composite rotating coupling nonuniform air distribution plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820172372.6U CN209445349U (en) | 2018-02-01 | 2018-02-01 | A kind of composite rotating coupling nonuniform air distribution plate |
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| CN209445349U true CN209445349U (en) | 2019-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820172372.6U Expired - Fee Related CN209445349U (en) | 2018-02-01 | 2018-02-01 | A kind of composite rotating coupling nonuniform air distribution plate |
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| CN (1) | CN209445349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI717123B (en) * | 2019-11-27 | 2021-01-21 | 國立成功大學 | Air distributor for use in a fluidized bed |
-
2018
- 2018-02-01 CN CN201820172372.6U patent/CN209445349U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI717123B (en) * | 2019-11-27 | 2021-01-21 | 國立成功大學 | Air distributor for use in a fluidized bed |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190927 Termination date: 20210201 |