CN109519919B - Cracking-proof ceramic flame cyclone for methanol burner - Google Patents
Cracking-proof ceramic flame cyclone for methanol burner Download PDFInfo
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- CN109519919B CN109519919B CN201811112686.8A CN201811112686A CN109519919B CN 109519919 B CN109519919 B CN 109519919B CN 201811112686 A CN201811112686 A CN 201811112686A CN 109519919 B CN109519919 B CN 109519919B
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- ceramic
- cylinder body
- cracking
- swirler
- ceramic cylinder
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- 239000000919 ceramic Substances 0.000 title claims abstract description 103
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 238000005336 cracking Methods 0.000 claims abstract description 18
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/38—Nozzles; Cleaning devices therefor
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cyclones (AREA)
Abstract
An anti-cracking ceramic flame swirler for a methanol burner, comprising: an outer cylinder; the ceramic cylinder body is formed by splicing ceramic plate bodies and is nested in the outer cylinder body; the swirl plate component is inserted on the ceramic cylinder body and used for generating disturbance swirl; the joint of every two ceramic plate bodies arranged along the axial direction of the ceramic cylinder body forms an inserting port, the ceramic cylinder body integrally forms a plurality of groups of inserting ports along the axial direction of the ceramic cylinder body, and each group of inserting ports is arranged along the circumferential direction of the ceramic cylinder body; the swirl piece subassembly quantity is the same with the quantity of a set of interface, every group the swirl piece subassembly includes: one end of the plug-in block is plugged into the plug-in ports of the same group of the ceramic cylinder; and the swirl plate is arranged at the other end of the plug-in block, the ceramic cylinder body adopts a split structure to facilitate the manufacture of the die, the risk of cracking of the ceramic cylinder body is further reduced, and the stability is improved.
Description
Technical Field
The disclosure relates to the field of swirling devices of methanol combustors, in particular to an anti-cracking ceramic flame swirler for a methanol combustor.
Background
Swirl burners are commonly used in the fields of pulverized coal combustion and gas combustion. Some solid or gas burners incorporate various forms of swirl generators which are rotated as the coal dust stream or gas mixture passes through the cyclone, and which are ejected from the nozzle to form a rotating jet. The rotary jet flow is favorable for forming a high-temperature smoke reflux zone, so that the air flows are intensively mixed, and further, the combustion is more sufficient. The swirling means of these swirl burners are usually arranged before the ignition of the fuel.
In the existing methanol burner, the atomization of methanol particles and the subsequent combustion process are carried out in a cyclone. The cyclone can not only realize the cyclone of the methanol atomized particles and promote the mixing of the atomized particles and the air, but also strengthen the forced turbulent flow of the methanol flame, so that the flame generates axial and radial velocity superposition and promotes the mixing of the combustion flame and the air so as to realize complete combustion.
The prior cyclone for the methanol burner is formed by splicing three 1/3 circumference ceramic cylinders and cyclone sheets inserted into the ceramic cylinders. The ceramic cylinder with the 1/3 circumference is easy to deform in the manufacturing process due to the large radian, and on the other hand, the inside of the ceramic cylinder with the 1/3 circumference is provided with a plurality of holes, so that stress concentration is easy to occur when the ceramic cylinder is subjected to thermal shock, and cracking damage further occurs. In addition, the swirl plate in the existing structure is not radially restrained, so that an outer cylinder wrapping for radial fixation of the swirl plate is needed outside the ceramic cylinder, and the structure is high in manufacturing and processing difficulty, low in yield and high in production cost.
BRIEF SUMMARY OF THE PRESENT DISCLOSURE
First, the technical problem to be solved
The disclosure provides an anti-cracking ceramic flame swirler for a methanol burner, which is used for relieving the technical problems of easy deformation, easy cracking and high manufacturing difficulty of the ceramic flame swirler in the prior art.
(II) technical scheme
The present disclosure provides a cracking-resistant ceramic flame swirler for a methanol burner, comprising: an outer cylinder; the ceramic cylinder body is formed by splicing ceramic plate bodies and is nested in the outer cylinder body; and the swirl plate component is inserted on the ceramic cylinder body and used for generating disturbance swirl.
In the embodiment of the disclosure, an interface is formed at the joint of each two ceramic plate bodies axially arranged along the ceramic cylinder, and a plurality of groups of interfaces are formed along the axial direction of the ceramic cylinder as a whole, and each group of interfaces are circumferentially arranged along the ceramic cylinder.
In the embodiment of the present disclosure, the number of the cyclone sheet assemblies is the same as the number of the group of the plug interfaces, and each group of the cyclone sheet assemblies includes: one end of the plug-in block is plugged into the plug-in ports of the same group of the ceramic cylinder; and the swirl plate is arranged at the other end of the plug-in block.
In the embodiment of the disclosure, the ceramic plate bodies are connected through mortise and tenon structures and are uniformly distributed along the axial direction and the circumferential direction of the inner wall of the outer cylinder body.
In the embodiment of the disclosure, a protruding structure is formed at the joint of every two ceramic plate bodies arranged along the circumferential direction of the ceramic cylinder body, so that an air circulation channel is formed between the ceramic cylinder body and the outer cylinder body.
In an embodiment of the present disclosure, the plug interface shape includes: square, circular, triangular or polygonal.
In the embodiment of the disclosure, a stepped structure is adopted in the plug interface.
In the embodiment of the disclosure, the plane of the swirl plate and the axial direction of the ceramic cylinder have an inclined angle theta, and 0 degrees < theta <85 degrees.
In an embodiment of the present disclosure, the bump structure is a strip bump structure, a block bump structure, or a dot bump structure.
In an embodiment of the present disclosure, the radial cross-sectional shape of the ceramic cylinder includes: round or regular polygon.
(III) beneficial effects
According to the technical scheme, the cracking-resistant ceramic flame swirler for the methanol burner has at least one or a part of the following beneficial effects:
(1) Ensuring that the rotational flow sheet is restrained in all directions in advance, and the manufacturing process is more convenient and simpler;
(2) Stability is improved, and deformation is not easy to occur;
(3) The ceramic cylinder body has no internal open pore, is not easy to damage and crack in the use process, prolongs the service life and has low cost;
(4) The ceramic cylinder adopts a split structure to facilitate the manufacture of the die, further reduces the risk of cracking of the ceramic cylinder, and can limit the split structure by means of the outer cylinder.
Drawings
FIG. 1 is a schematic diagram of a crack-resistant ceramic flame swirler for a methanol burner according to an embodiment of the disclosure;
FIG. 2 is a schematic structural view of the ceramic wafer body shown in FIG. 1 in accordance with an embodiment of the present disclosure;
FIG. 3 is a schematic view of the configuration of the cyclone sheet assembly shown in FIG. 1 in accordance with an embodiment of the disclosure;
FIG. 4 is a schematic view of another construction of a crack-resistant ceramic flame swirler for a methanol burner according to an embodiment of the disclosure;
Fig. 5 is a schematic structural view of the ceramic wafer body in fig. 4 according to an embodiment of the disclosure.
[ In the drawings, the main reference numerals of the embodiments of the present disclosure ]
10-An outer cylinder;
20-ceramic cylinder
21-A ceramic wafer body; 22-plug-in interface; 23-bump structure;
30-cyclone sheet assembly
31-Plug-in blocks; 32-cyclone sheets.
Detailed Description
The utility model provides a methyl alcohol combustor is with preventing ceramic flame swirler that ftractures, ceramic flame swirler's ceramic barrel is formed by the concatenation of a plurality of potsherds body, and the splice that the spliced is used for fixing the plug interface of potsherd subassembly has realized the omnidirectionally restraint of potsherd, has avoided restricting the potsherd through the parcel layer, has reduced the processing manufacturing degree of difficulty of potsherd body and parcel layer, makes ceramic flame swirler whole stable performance good simultaneously, difficult fracture damages, difficult deformation.
For the purposes of promoting an understanding of the principles and advantages of the disclosure, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same.
In an embodiment of the disclosure, a cracking-preventing ceramic flame swirler for a methanol burner is provided, fig. 1 is a schematic structural diagram of the cracking-preventing ceramic flame swirler for a methanol burner, fig. 2 is a schematic structural diagram of a ceramic plate body shown in fig. 1, fig. 3 is a schematic structural diagram of a swirl plate shown in fig. 1, and in combination with fig. 1, fig. 2 and fig. 3, the ceramic flame swirler includes:
The outer cylinder 10 is arranged at the outermost side of the ceramic flame swirler.
The ceramic cylinder 20 is formed by splicing ceramic plate bodies 21 and is nested in the outer cylinder. And
A plurality of swirl plate assemblies 30 are inserted on the ceramic cylinder 20 for generating a turbulent swirl.
The ceramic plate bodies 21 are connected through mortise and tenon structures and are uniformly distributed along the axial direction and the circumferential direction of the inner wall of the outer cylinder 10.
An interface 22 is formed at the joint of each two ceramic plate bodies 21 axially arranged along the ceramic cylinder 20. The ceramic cylinder 20 integrally forms a plurality of groups of insertion ports along the axial direction thereof, and each group of insertion ports is arranged along the circumferential direction of the ceramic cylinder 20.
The joint of every two ceramic plate bodies 21 arranged along the circumferential direction of the ceramic cylinder 20 forms a convex structure 23 for forming an air circulation channel between the ceramic cylinder 20 and the outer cylinder 10.
The protruding structures 23 may be stripe-shaped protruding structures, block-shaped protruding structures or dot-shaped protruding structures.
The number of the cyclone sheet assemblies 30 is the same as the number of the group of the plug interfaces. Each of the cyclone sheet assemblies 30 includes:
A plug-in block 31 having one end plugged into the plug-in port 22 of the same group of the ceramic cylinder 20, and
The swirl plate 32 is provided at the other end of the plug 31.
A step structure is disposed in the plug 22 for better fixing the plug 31.
The shape of the plug 22 includes: square, circular, triangular or polygonal, etc.
As shown in fig. 3, the swirl plate 32 is disposed at the other end of the plug 31, and the plane of the swirl plate 32 and the axial direction of the ceramic cylinder 20 have an inclination angle θ,0 ° < θ <85 °, which is beneficial to disturbance of swirl.
In an embodiment of the present disclosure, fig. 4 is a schematic diagram of another structure of a cracking-preventing ceramic flame swirler for a methanol burner according to an embodiment of the present disclosure; fig. 5 is a schematic structural view of the ceramic wafer body in fig. 4 according to an embodiment of the disclosure.
The radial cross-sectional shape of the ceramic cylinder 20 includes: round or regular polygon.
The outer cylinder 10 is not essential and a part of the kiln or boiler may be directly used as the outer cylinder.
Thus, embodiments of the present disclosure have been described in detail with reference to the accompanying drawings. It should be noted that, in the drawings or the text of the specification, implementations not shown or described are all forms known to those of ordinary skill in the art, and not described in detail. Furthermore, the above definitions of the elements and methods are not limited to the specific structures, shapes or modes mentioned in the embodiments, and may be modified or replaced simply by one skilled in the art, for example:
(1) The ceramic plate body can also be replaced by a ceramic plate;
(2) The plug-in port can be replaced by a limit hole;
From the foregoing, it should be apparent to those skilled in the art that cracking resistant ceramic flame swirlers for methanol burners.
To sum up, the disclosure provides a methyl alcohol combustor is with preventing ceramic flame swirler that ftractures, ceramic flame swirler's ceramic barrel is formed by the concatenation of a plurality of potsherds body, and the splice-formed interface that is used for fixed potsherd subassembly has realized the omnidirectionally restraint of potsherd, has avoided restricting the potsherd through the parcel layer, has reduced the processing manufacturing degree of difficulty of potsherd body and parcel layer, makes ceramic flame swirler whole stability can be good simultaneously, difficult fracture damages, non-deformable.
It should be further noted that, the directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., are only referring to the directions of the drawings, and are not intended to limit the scope of the present disclosure. Like elements are denoted by like or similar reference numerals throughout the drawings. Conventional structures or constructions will be omitted when they may cause confusion in understanding the present disclosure.
And the shapes and dimensions of the various elements in the drawings do not reflect actual sizes and proportions, but merely illustrate the contents of the embodiments of the present disclosure. In addition, in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.
Unless otherwise known, numerical parameters in this specification and the appended claims are approximations that may vary depending upon the desired properties sought to be obtained by the present disclosure. In particular, all numbers expressing quantities of ingredients, reaction conditions, and so forth used in the specification and claims are to be understood as being modified in all instances by the term "about". In general, the meaning of expression is meant to include a variation of + -10% in some embodiments, a variation of + -5% in some embodiments, a variation of + -1% in some embodiments, and a variation of + -0.5% in some embodiments by a particular amount.
Furthermore, the word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements.
The use of ordinal numbers such as "first," "second," "third," etc., in the description and the claims to modify a corresponding element does not by itself connote any ordinal number of elements or the order of manufacturing or use of the ordinal numbers in a particular claim, merely for enabling an element having a particular name to be clearly distinguished from another element having the same name.
Furthermore, unless specifically described or steps must occur in sequence, the order of the above steps is not limited to the list above and may be changed or rearranged according to the desired design. In addition, the above embodiments may be mixed with each other or other embodiments based on design and reliability, i.e. the technical features of the different embodiments may be freely combined to form more embodiments.
Those skilled in the art will appreciate that the modules in the apparatus of the embodiments may be adaptively changed and disposed in one or more apparatuses different from the embodiments. The modules or units or components of the embodiments may be combined into one module or unit or component and, furthermore, they may be divided into a plurality of sub-modules or sub-units or sub-components. Any combination of all features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or units of any method or apparatus so disclosed, may be used in combination, except insofar as at least some of such features and/or processes or units are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Also, in the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware.
Similarly, it should be appreciated that in the above description of exemplary embodiments of the disclosure, various features of the disclosure are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various disclosed aspects. However, the disclosed method should not be construed as reflecting the intention that: i.e., the claimed disclosure requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this disclosure.
While the foregoing embodiments have been described in some detail for purposes of clarity of understanding, it will be understood that the foregoing embodiments are merely illustrative of the invention and are not intended to limit the invention, and that any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the present disclosure are intended to be included within the scope of the present disclosure.
Claims (8)
1. An anti-cracking ceramic flame swirler for a methanol burner, comprising:
An outer cylinder (10);
the ceramic cylinder body (20) is formed by splicing ceramic plate bodies (21) and is nested in the outer cylinder body; and
The swirl plate assembly (30) is inserted on the ceramic cylinder (20) and used for generating disturbance swirl;
Every two ceramic plate bodies (21) axially arranged along the ceramic cylinder (20) form an inserting port (22), the ceramic cylinder (20) integrally forms a plurality of groups of inserting ports (22) along the axial direction of the ceramic cylinder, and each group of inserting ports (22) is circumferentially arranged along the ceramic cylinder (20); every two ceramic plate bodies (21) which are circumferentially arranged along the ceramic cylinder body (20) form a convex structure (23) at the joint, and the convex structure is used for forming an air circulation channel between the ceramic cylinder body (20) and the outer cylinder body (10).
2. The cracking-resistant ceramic flame swirler for a methanol burner as set forth in claim 1, wherein the number of swirl vane assemblies (30) is the same as the number of a set of plug interfaces (22), each set of swirl vane assemblies (30) comprising:
one end of the plug-in block (31) is plugged into the plug-in ports (22) of the same group of the ceramic cylinder body (20); and
The swirl plate (32) is arranged at the other end of the plug-in block (31).
3. The cracking-resistant ceramic flame swirler for a methanol burner according to claim 1, wherein the ceramic plate bodies (21) are connected through mortise and tenon structures and are uniformly distributed along the axial direction and the circumferential direction of the inner wall of the outer cylinder body (10).
4. The cracking-resistant ceramic flame swirler for a methanol burner as set forth in claim 1, wherein the interface (22) shape includes: square, circular, triangular or polygonal.
5. The cracking-resistant ceramic flame swirler for a methanol burner as claimed in claim 1, wherein the insertion port (22) adopts a stepped structure.
6. The cracking-resistant ceramic flame swirler for a methanol burner as claimed in claim 2, wherein the plane of the swirl plate (32) and the axial direction of the ceramic cylinder (20) have an inclination angle θ of 0 ° < θ <85 °.
7. The cracking-resistant ceramic flame swirler for a methanol burner as claimed in claim 1, wherein the protrusion structure (23) is a strip-shaped protrusion structure, a block-shaped protrusion structure or a dot-shaped protrusion structure.
8. The cracking-resistant ceramic flame swirler for a methanol burner as set forth in claim 1, wherein a radial sectional shape of the ceramic cylinder (20) includes: round or regular polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811112686.8A CN109519919B (en) | 2018-09-25 | 2018-09-25 | Cracking-proof ceramic flame cyclone for methanol burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811112686.8A CN109519919B (en) | 2018-09-25 | 2018-09-25 | Cracking-proof ceramic flame cyclone for methanol burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109519919A CN109519919A (en) | 2019-03-26 |
| CN109519919B true CN109519919B (en) | 2024-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811112686.8A Active CN109519919B (en) | 2018-09-25 | 2018-09-25 | Cracking-proof ceramic flame cyclone for methanol burner |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1571905A (en) * | 2001-10-19 | 2005-01-26 | 阿尔斯通技术有限公司 | Burner for synthesis gas |
| CN105627304A (en) * | 2016-01-27 | 2016-06-01 | 北京泷涛环境科技有限公司 | Strong-swirling-flow fuel staging ultra-low-nitrogen gas burner |
| CN106016364A (en) * | 2016-07-13 | 2016-10-12 | 哈尔滨汽轮机厂有限责任公司 | Unit two-cyclone premixed combustion nozzle for dry-type low-pollution combustion chamber of gas turbine |
| CN206320747U (en) * | 2016-12-28 | 2017-07-11 | 安徽诚铭热能技术有限公司 | Spinning disk, turbulent burner |
| CN107355781A (en) * | 2017-08-30 | 2017-11-17 | 山西煜能科技开发有限公司 | A kind of methanol burner flame vortex device |
| CN210035481U (en) * | 2018-09-25 | 2020-02-07 | 天津大学 | Cracking-proof ceramic flame swirler for methanol burner |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7513098B2 (en) * | 2005-06-29 | 2009-04-07 | Siemens Energy, Inc. | Swirler assembly and combinations of same in gas turbine engine combustors |
| US7490471B2 (en) * | 2005-12-08 | 2009-02-17 | General Electric Company | Swirler assembly |
-
2018
- 2018-09-25 CN CN201811112686.8A patent/CN109519919B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1571905A (en) * | 2001-10-19 | 2005-01-26 | 阿尔斯通技术有限公司 | Burner for synthesis gas |
| CN105627304A (en) * | 2016-01-27 | 2016-06-01 | 北京泷涛环境科技有限公司 | Strong-swirling-flow fuel staging ultra-low-nitrogen gas burner |
| CN106016364A (en) * | 2016-07-13 | 2016-10-12 | 哈尔滨汽轮机厂有限责任公司 | Unit two-cyclone premixed combustion nozzle for dry-type low-pollution combustion chamber of gas turbine |
| CN206320747U (en) * | 2016-12-28 | 2017-07-11 | 安徽诚铭热能技术有限公司 | Spinning disk, turbulent burner |
| CN107355781A (en) * | 2017-08-30 | 2017-11-17 | 山西煜能科技开发有限公司 | A kind of methanol burner flame vortex device |
| CN210035481U (en) * | 2018-09-25 | 2020-02-07 | 天津大学 | Cracking-proof ceramic flame swirler for methanol burner |
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| Publication number | Publication date |
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| CN109519919A (en) | 2019-03-26 |
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