CN116839031A - Split type steady combustion combustor - Google Patents
Split type steady combustion combustor Download PDFInfo
- Publication number
- CN116839031A CN116839031A CN202310837532.XA CN202310837532A CN116839031A CN 116839031 A CN116839031 A CN 116839031A CN 202310837532 A CN202310837532 A CN 202310837532A CN 116839031 A CN116839031 A CN 116839031A
- Authority
- CN
- China
- Prior art keywords
- venturi
- burner
- primary air
- elbow
- split
- 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.)
- Pending
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 19
- 239000003245 coal Substances 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 10
- 229910001208 Crucible steel Inorganic materials 0.000 abstract description 3
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- 239000011224 oxide ceramic Substances 0.000 abstract description 3
- 229910052574 oxide ceramic Inorganic materials 0.000 abstract description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical group [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 6
- 239000002817 coal dust Substances 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D17/00—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel
- F23D17/007—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel liquid or pulverulent fuel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a split stable combustion burner which comprises a venturi tube, wherein the outer side of the venturi tube is detachably connected with a primary air pipe outer sleeve, one side of the primary air pipe outer sleeve is provided with a primary air elbow, one side of the primary air elbow is fixedly connected with an anti-abrasion plate, and the right side of the venturi tube is detachably connected with a burner nozzle. By adopting the structure, the venturi tube is changed into a split structure, the inlet section adopts Q235+ custom-made welded aluminum oxide ceramic, the outlet section adopts heat-resistant and high-temperature-resistant alloy cast steel, so that the burner is convenient to overhaul and maintain, the structural strength of the burner can be improved, the structural design is reasonable, and the burner is easy to produce; through with the whole recrystallized silicon carbide structure combustor nozzle of combustor output installation integral type, solved traditional installation difficulty, inefficiency's problem, can effectively improve life.
Description
Technical Field
The invention belongs to the technical field of combustors, and particularly relates to a split type stable combustion combustor.
Background
A burner is a device used to generate flame or heat, and typically uses fuel and oxygen to generate flame or heat, a process known as combustion.
The boiler burner has a severe working environment, and serious abrasion defects often occur in the running process, and once the boiler burner is damaged, the cost of teaching is caused because spare parts of the burner are high in price, long in manufacturing period and long in construction period. The burner is a main device of the boiler, and regarding the overall combustion efficiency of the boiler, the damage of the burner can lead to incomplete combustion of the boiler, pollute the heating surface at the tail part of the boiler, cause the rise of the exhaust gas temperature of the boiler, even cause secondary combustion, and increase the energy consumption of the boiler. The large-area damage of the burner can cause the occurrence of events which seriously threaten the operation safety of the boiler, such as unstable ignition, flameout, deflagration, and coking of the hearth, and the like, and the operation risk is larger.
In the prior art, the venturi tube adopts an integral structure, the subsequent maintenance is not convenient enough, and the output end of the burner in the prior art adopts a nozzle and stable combustion ring structure, so that the structure is difficult to install, the installation efficiency is lower, the service life is also short, and the replacement and maintenance cost is higher.
Disclosure of Invention
Aiming at the problems in the background art, the invention aims to provide a split stable combustion burner, which solves the problems that in the prior art, a venturi tube adopts an integral structure, the subsequent maintenance is inconvenient, and the output end of the burner adopts a nozzle and stable combustion ring structure, so that the structure is difficult to install, the installation efficiency is low, the service life is short, and the replacement and maintenance cost is high.
The technical aim of the invention is realized by the following technical scheme:
the utility model provides a split type steady burner that fires, includes venturi, and venturi outside can be dismantled and is connected with the tuber pipe outer sleeve once, and the one side of tuber pipe outer sleeve is installed a wind elbow, and the inboard corner fixedly connected with wear-resisting board of wind elbow, the right side of venturi can be dismantled and be connected with the combustor nozzle, and venturi's internally mounted has the injection pipe, and the outside cover of injection pipe is equipped with the center stick protection sleeve.
Further, the left side of the primary air elbow is provided with an elbow cover plate, and one end of the oil injection pipe penetrates through the elbow cover plate.
Further, the outer surface laminating of venturi is connected with venturi apron, and venturi apron is established between tuber pipe outer sleeve and venturi.
Further, a guide cylinder is arranged on one side of the burner nozzle, and a gasket is arranged between the guide cylinder and the outer sleeve of the primary air pipe.
Further, a first coal powder concentrator and a second coal powder concentrator which are connected with the oil injection pipe are arranged in the venturi tube.
Further, the inner wall of the lower end of the venturi tube is fixedly connected with a supporting plate for supporting the second pulverized coal concentrator.
Further, a ceramic protective sleeve is arranged on the outer side of the first pulverized coal concentrator.
In summary, the invention has the following advantages:
according to the invention, the burner is changed into a split structure, the inlet section adopts Q235+ custom-welded aluminum oxide ceramic, and the outlet section adopts heat-resistant and high-temperature-resistant alloy cast steel, so that the subsequent overhaul and maintenance of the burner are facilitated, the structural strength of the burner can be improved, the structural design is reasonable, and the production is easy; through with the whole recrystallized silicon carbide structure combustor nozzle of combustor output installation integral type, solved traditional installation difficulty, inefficiency's problem, can effectively improve life.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged view of section A of FIG. 1 in accordance with the present invention;
FIG. 3 is an enlarged view of section B of FIG. 1 in accordance with the present invention;
FIG. 4 is a schematic view of a burner nozzle configuration in accordance with the present invention. .
Reference numerals: 1. the primary air elbow, 2, elbow apron, 3, wear-proof board, 4, primary air pipe outer sleeve, 5, venturi apron, 6, venturi, 7, center bar protective sleeve, 8, first pulverized coal concentrator, 9, ceramic protective sleeve, 10, second pulverized coal concentrator, 11, draft tube, 12, burner nozzle, 13, oil spray pipe, 14, backup pad.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-4, the split type stable combustion burner according to this embodiment includes a venturi tube 6, a primary air pipe outer sleeve 4 is detachably connected to the outer side of the venturi tube 6, a primary air elbow 1 is installed on one side of the primary air pipe outer sleeve 4, an anti-wear plate 3 is fixedly connected to the inside corner of the primary air elbow 1, a burner nozzle 12 is detachably connected to the right side of the venturi tube 6, an oil injection tube 13 is installed inside the venturi tube 6, a center rod protection sleeve 7 is sleeved on the outer side of the oil injection tube 13, the center rod protection sleeve 7 is in a bimetal composite surfacing mode, the hardness HRC is higher than 65, a first pulverized coal concentrator 8 and a second pulverized coal concentrator 10 are arranged on one side of the oil injection tube 13, the first pulverized coal concentrator 8 and the second pulverized coal concentrator 10 can send fuel and air into a boiler furnace, so that after the fuel enters the furnace, the fuel should be burned stably as soon as possible and quickly as possible, and a ceramic protection sleeve 9 is installed on the outer side of the first pulverized coal concentrator 8 for protection; the burner has the advantages of simple structure, convenient production and assembly, long service life, strong practicability and popularization and application value.
The burner nozzle 12 includes a stabilizer ring and a nozzle that are secured together.
Example 2
Referring to fig. 1, in order to achieve the purpose of facilitating the installation of the oil spray pipe 13, the left side of the primary air elbow 1 in the embodiment is provided with an elbow cover plate 2, and one side of the oil spray pipe 13 passes through the elbow cover plate 2; by arranging the elbow cover plate 2, the opening of the primary air elbow 1 can be covered, so that coal dust is prevented from overflowing, and the installation of the oil injection pipe 13 is facilitated.
Referring to fig. 1, in order to achieve the purpose of protecting the venturi tube 6, in this embodiment, a venturi cover plate 5 is attached to the outer surface of the venturi tube 6, and the venturi cover plate 5 is disposed between the primary air pipe outer sleeve 4 and the venturi tube 6; by providing the venturi cover plate 5, the venturi 6 can be protected.
Referring to fig. 1, in order to achieve the purpose of making the installation of the burner nozzle 12 and the venturi tube 6 more firm and stable and further fully burn, a guide shell 11 connected with the primary air pipe outer sleeve 4 is arranged at the outer side of the burner nozzle 12 in the embodiment, and a gasket is arranged between the guide shell 11 and the primary air pipe outer sleeve 4; through setting up draft tube 11 cover on combustor nozzle 12 for relatively stable between combustor nozzle 12 and the venturi 6, set up the gasket, make draft tube 11 and the inseparable firm of primary air pipe outer sleeve 4 laminating.
Example 3
Referring to fig. 1, for the purpose of facilitating the stability of the overall structure, the inner wall of the lower end of the venturi tube 6 in this embodiment is fixedly connected with a support plate 14; by providing the support plate 14, the second pulverized coal concentrator 10 is supported, which is beneficial to the stability of the whole structure.
The use principle and the advantages are that: the coal dust enters the venturi tube 6 from the primary air elbow 1, and then enters the hearth for combustion after being mixed by the first coal dust concentrator 8 and the second coal dust concentrator 10, as the venturi tube 6 is changed into a split type structure, the inlet section adopts Q235+ customized welding type aluminum oxide ceramic, the outlet section adopts heat-resistant and high-temperature-resistant alloy cast steel, so that the subsequent overhaul and maintenance of the burner are convenient, the structural strength of the burner can be improved, the structural design is reasonable, the production is easy, the problems of difficult traditional installation and low efficiency are solved, and the service life can be effectively prolonged by installing the burner nozzle 12 with an integral whole recrystallized silicon carbide structure at the output end of the burner.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a split type steady burning combustor which characterized in that: including venturi (6), venturi (6) outside can be dismantled and be connected with tuber pipe outer sleeve (4) once, one side of tuber pipe outer sleeve (4) is installed a wind elbow (1), the inboard corner fixedly connected with abrasionproof board (3) of wind elbow (1), venturi (6) right side can be dismantled and be connected with combustor nozzle (12), venturi (6) internally mounted has injection pipe (13), the outside cover of injection pipe (13) is equipped with center stick protection sleeve (7).
2. A split stable combustion burner according to claim 1, wherein: the left side of the primary air elbow (1) is provided with an elbow cover plate (2), and one end of the oil injection pipe (13) penetrates through the elbow cover plate (2).
3. A split stable combustion burner according to claim 1, wherein: the outer surface laminating of venturi (6) is connected with venturi apron (5), venturi apron (5) are established between tuber pipe outer sleeve (4) and venturi (6) once.
4. A split stable combustion burner according to claim 1, wherein: one side of the burner nozzle (12) is provided with a guide cylinder (11), and a gasket is arranged between the guide cylinder (11) and the primary air pipe outer sleeve (4).
5. A split stable combustion burner according to claim 1, wherein: the venturi tube (6) is internally provided with a first coal powder concentrator (8) and a second coal powder concentrator (10) which are connected with the oil injection tube (13).
6. A split stable combustion burner according to claim 5, wherein: the inner wall of the lower end of the venturi tube (6) is fixedly connected with a supporting plate (14) for supporting the second pulverized coal concentrator (10).
7. A split stable combustion burner according to claim 5, wherein: and a ceramic protective sleeve (9) is arranged on the outer side of the first pulverized coal concentrator (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310837532.XA CN116839031A (en) | 2023-07-10 | 2023-07-10 | Split type steady combustion combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310837532.XA CN116839031A (en) | 2023-07-10 | 2023-07-10 | Split type steady combustion combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116839031A true CN116839031A (en) | 2023-10-03 |
Family
ID=88174061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310837532.XA Pending CN116839031A (en) | 2023-07-10 | 2023-07-10 | Split type steady combustion combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116839031A (en) |
-
2023
- 2023-07-10 CN CN202310837532.XA patent/CN116839031A/en active Pending
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