CN107764061B - Furnace top structure for combustion furnace - Google Patents
Furnace top structure for combustion furnace Download PDFInfo
- Publication number
- CN107764061B CN107764061B CN201710967952.4A CN201710967952A CN107764061B CN 107764061 B CN107764061 B CN 107764061B CN 201710967952 A CN201710967952 A CN 201710967952A CN 107764061 B CN107764061 B CN 107764061B
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- China
- Prior art keywords
- furnace top
- furnace
- block
- pipe
- air supply
- Prior art date
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 45
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000011490 mineral wool Substances 0.000 claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000008602 contraction Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/02—Crowns; Roofs
- F27D1/021—Suspended roofs
- F27D1/022—Parts thereof, e.g. noses, arches
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention discloses a furnace top structure for a combustion furnace, which is arranged on a furnace body of the combustion furnace and comprises a furnace top frame, wherein a plurality of main air supply pipes are arranged on the furnace top frame, a plurality of auxiliary air supply pipes are arranged on each main air supply pipe, the auxiliary air supply pipes are connected and communicated with a furnace top fixing pipe, a furnace top block is detachably arranged on the furnace top fixing pipe, and a furnace top is formed by a plurality of furnace top blocks; a block position adjusting device is arranged between the auxiliary air supply pipe and the furnace top fixing pipe, a furnace top block fixing device is arranged on the furnace top fixing pipe, and a furnace top block sealing device is arranged on the furnace top block; the invention changes the existing integrally built furnace top structure into a split type, each furnace top block is exactly fixed on a furnace top fixing pipe for supplying air into a combustion cavity, and the furnace top blocks are sealed by rock wool; the invention is not only easy to adapt to the change of heat expansion and cold contraction of the furnace top and reduce the generation of cracks, but also only needs to replace a furnace top block singly after a certain furnace top block is damaged, and the disassembly and the installation of the furnace top block are also very simple, thereby leading the maintenance work to be very simple.
Description
Technical Field
The invention relates to the technical field of combustion furnaces, in particular to a furnace top structure.
Background
The main purpose of the combustion furnace is to fully burn fuel in the furnace and to transmit heat energy generated by combustion to other heat energy utilization equipment, and the combustion furnace is widely used in power generation, heating and other occasions. The furnace top structure of the prior art is mostly built by refractory bricks, and because the combustion chamber of the combustion furnace can reach high temperature of thousands of degrees, the furnace top is easy to crack or break due to the change of high and low temperature in the combustion chamber in the use process of the combustion furnace, the maintenance is quite troublesome, and the manufacturing process of the structure built by refractory bricks in the prior art is quite complicated.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a furnace top structure for a combustion furnace, which is simple to manufacture and convenient to maintain.
In order to solve the technical problems, the technical scheme of the invention is as follows: the furnace top structure for the combustion furnace is arranged on a furnace body of the combustion furnace and comprises a furnace top frame which is detachably arranged on the furnace body, a plurality of main air supply pipes are arranged above a combustion chamber of the combustion furnace on the furnace top frame, a plurality of auxiliary air supply pipes facing the combustion chamber are arranged on each main air supply pipe, the auxiliary air supply pipes are connected and communicated with a furnace top fixing pipe, a furnace top block is detachably arranged on the furnace top fixing pipe, and a furnace top is formed by a plurality of furnace top blocks; a block position adjusting device is arranged between the auxiliary air supply pipe and the furnace top fixing pipe, a furnace top block fixing device is arranged on the furnace top fixing pipe, and a furnace top block sealing device is arranged on the furnace top block.
As the preferable technical scheme, the furnace top block is sleeved on the furnace top fixing pipe, and the furnace top block is provided with a mounting through hole.
As an optimized technical scheme, the furnace top block fixing device comprises a pipe fixing step arranged on the outer wall of the furnace top fixing pipe, and a block fixing step corresponding to the pipe fixing step is arranged in the mounting through hole.
As a preferred technical scheme, the furnace top block sealing device comprises sealing rock wool arranged above a plurality of furnace top blocks.
As a preferred embodiment, the block position adjusting device includes a block level adjusting device and a block height adjusting device.
As the preferable technical scheme, the block horizontal adjusting device comprises a connecting corrugated pipe fixedly arranged at the lower end of the auxiliary air supply pipe, and the lower end of the connecting corrugated pipe is connected with the upper end of the furnace top fixing pipe.
As the preferable technical scheme, the block height adjusting device comprises a threaded adjusting pipe arranged at the lower end of the connecting corrugated pipe, and the upper end of the furnace top fixing pipe is provided with a height adjusting thread corresponding to the threaded adjusting pipe.
Due to the adoption of the technical scheme, the furnace top structure for the combustion furnace is arranged on a furnace body of the combustion furnace and comprises a furnace top frame which is detachably arranged on the furnace body, a plurality of main air supply pipes are arranged above a combustion cavity of the combustion furnace on the furnace top frame, a plurality of auxiliary air supply pipes facing the combustion cavity are arranged on each main air supply pipe, furnace top fixing pipes are connected and communicated with each auxiliary air supply pipe, furnace top blocks are detachably arranged on the furnace top fixing pipes, and a plurality of furnace top blocks form a furnace top; a block position adjusting device is arranged between the auxiliary air supply pipe and the furnace top fixing pipe, a furnace top block fixing device is arranged on the furnace top fixing pipe, and a furnace top block sealing device is arranged on the furnace top block; the invention changes the existing integrally built furnace top structure into a split type, each furnace top block is exactly fixed on a furnace top fixing pipe for supplying air to the combustion chamber, the furnace top and the air supply structure are optimized, and rock wool is used for sealing the furnace top block, so that the integral structure is easy to adapt to the change of heat expansion and cold contraction of the furnace top, the generation of cracks is reduced, and after a certain furnace top block is damaged, only the furnace top block is required to be independently replaced, and the disassembly and the assembly of the furnace top block are also very simple, thereby the maintenance work is very simple.
Drawings
The following drawings are only for purposes of illustration and explanation of the present invention and are not intended to limit the scope of the invention. Wherein:
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of a cross-sectional structure at a main air supply duct according to an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of the structure at I of FIG. 2;
FIG. 4 is a schematic cross-sectional view of a roof block according to an embodiment of the invention;
fig. 5 is a schematic view of the state of the embodiment of the present invention after being mounted and used on a furnace body.
In the figure: 1-a furnace body; 11-combustion chamber; 2-a furnace roof frame; 3-a main air supply pipe; 4-auxiliary air supply pipes; 41-furnace top fixing tube; 42-furnace top block fixing device; 43-tube securing step; 5-reinforcing rods; 6-a furnace roof block; 61-mounting through holes; 62-block fixed steps; 7-a block level adjustment device; 71-connecting a corrugated pipe; 8-block height adjusting means; 81-a threaded adjustment tube; 9-furnace top block sealing device; 91-sealing rock wool.
Detailed Description
The invention is further illustrated in the following, in conjunction with the accompanying drawings and examples. In the following detailed description, exemplary embodiments of the invention are described by way of illustration only. It is needless to say that the person skilled in the art realizes that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive in scope.
As shown in fig. 1 to 5 together, the furnace roof structure for the combustion furnace is arranged on a furnace body 1 of the combustion furnace and comprises a furnace roof frame 2 which is detachably arranged on the furnace body 1, and the furnace roof frame 2 in the embodiment can be arranged on the side wall of the combustion furnace or on a base of the combustion furnace.
The furnace roof frame 2 is provided with a plurality of main air supply pipes 3 above a combustion chamber 11 of the combustion furnace, each main air supply pipe 3 is provided with a plurality of auxiliary air supply pipes 4 facing the combustion chamber 11, the main air supply pipes 3 are horizontally arranged and transversely arranged above the combustion chamber 11, the auxiliary air supply pipes 4 are perpendicular to the main air supply pipes 3, as shown in fig. 2, the main air supply pipes 3 are provided with four rows of auxiliary air supply pipes 4, in order to ensure the stability of the auxiliary air supply pipes 4, each row of auxiliary air supply pipes 4 is provided with reinforcing rods 5, the reinforcing rods 5 adopt channel steel, and of course, each main air supply pipe 3 can be provided with three or two rows of auxiliary air supply pipes 4.
The auxiliary air supply pipe 4 is connected and communicated with a furnace top fixing pipe 41, a furnace top block 6 is detachably arranged on the furnace top fixing pipe 41, and a furnace top is formed by a plurality of furnace top blocks 6. The roof block 6 is manufactured from a refractory material which is well known to the person skilled in the art and will not be described in detail here. The furnace top block 6 is sleeved on the furnace top fixing pipe 41, and the furnace top block 6 is provided with a mounting through hole 61. The furnace top fixed pipe 41 is provided with a furnace top block fixing device 42, the furnace top block fixing device 42 comprises a pipe fixing step 43 arranged on the outer wall of the furnace top fixed pipe 41, and a block fixing step 62 corresponding to the pipe fixing step 43 is arranged in the installation through hole 61, namely, the furnace top block 6 is located on the pipe fixing step 43 by means of self gravity. In this embodiment, a sleeve is welded on the outer wall of the furnace top fixing tube 41, the upper end surface of the welded sleeve forms the tube fixing step 43 in this embodiment, and the block fixing step 62 is integrally formed during manufacturing of the furnace top block 6, which is well known to those skilled in the art and will not be described herein.
The furnace roof block 6 is provided with a furnace roof block sealing device 9, the furnace roof block sealing device 9 comprises sealing rock wool 91 arranged above a plurality of furnace roof blocks 6, after all furnace roof blocks 6 are well adjusted in position, a rock wool layer is sprayed or coated on all furnace roof blocks 6, so that gaps among the furnace roof blocks 6 are sealed to prevent heat from leaking, and the spraying or coating process of the sealing rock wool 91 is well known to those skilled in the art and is not repeated herein.
A block position adjusting device is arranged between the auxiliary air supply pipe 4 and the furnace top fixing pipe 41, and comprises a block horizontal adjusting device 7 and a block height adjusting device 8.
The block level adjusting device 7 comprises a connecting corrugated pipe 71 fixedly arranged at the lower end of the auxiliary air supply pipe 4, and the lower end of the connecting corrugated pipe 71 is connected with the upper end of the furnace top fixing pipe 41. The block height adjusting device 8 comprises a threaded adjusting pipe 81 arranged at the lower end of the connecting corrugated pipe 71, and the upper end of the furnace top fixing pipe 41 is provided with a height adjusting thread corresponding to the threaded adjusting pipe 81. In this embodiment, the two ends of the connection bellows 71 are flange connections, the lower end of the connection bellows 71 is flange connected to the threaded adjusting tube 81, in this embodiment, the connection bellows, the flange connection, and the bolts for the flange connection are all commonly known technologies, and will not be described in detail herein, and the bolts for the flange connection are not shown in the figure. In the embodiment, the connecting corrugated pipe 71 is used for realizing the adjustment of the horizontal direction of the furnace top block 6, so that the inconvenience in installation caused by the machining error of the auxiliary air supply pipe 4 is avoided; the bellows are screwed with the roof-holding tube 41, and the height of the roof block 6 can be adjusted by the length of the screw connection with each other. The height adjusting screw thread according to the present embodiment is a common connecting screw thread, which is well known to those skilled in the art, and is not described herein and is not shown in the drawings.
In the embodiment, the existing integrally built furnace top structure is changed into a split type, each furnace top block 6 is just fixed on the furnace top fixing pipe 41 for supplying air to the combustion chamber 11, the furnace top structure and the air supply structure of the combustion furnace are optimized, the furnace top block 6 is sealed by rock wool, the integral structure is easy to adapt to the change of heat expansion and cold contraction of the furnace top, the generation of cracks is reduced, and after a certain furnace top block 6 is damaged, only the furnace top block 6 is required to be independently replaced; when the furnace top block 6 is detached, the threaded adjusting pipe 81 and the connecting corrugated pipe 71 are detached, and then the threaded adjusting pipe 81 is detached from the height adjusting threads at the upper end of the furnace top fixing pipe 41, so that the furnace top block 6 can be detached from the furnace top fixing pipe 41, and the disassembly and the installation of the furnace top block 6 are very simple, so that the maintenance work is very simple.
The foregoing has shown and described the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. Furnace roof structure for combustion furnace installs on the furnace body of combustion furnace, its characterized in that: the furnace top frame is arranged on the furnace body in a detachable mode, a plurality of main air supply pipes are arranged above a combustion cavity of the combustion furnace on the furnace top frame, a plurality of auxiliary air supply pipes facing the combustion cavity are arranged on each main air supply pipe, the auxiliary air supply pipes are arranged in a row, reinforcing rods are arranged on each row of auxiliary air supply pipes, furnace top fixing pipes are connected and communicated with the auxiliary air supply pipes, furnace top blocks are detachably arranged on the furnace top fixing pipes, and a plurality of furnace top blocks form a furnace top; a block position adjusting device is arranged between the auxiliary air supply pipe and the furnace top fixing pipe, a furnace top block fixing device is arranged on the furnace top fixing pipe, and a furnace top block sealing device is arranged on the furnace top block.
2. The furnace roof structure for a combustion furnace according to claim 1, wherein: the furnace top block is sleeved on the furnace top fixing pipe, and the furnace top block is provided with a mounting through hole.
3. The furnace roof structure for a combustion furnace according to claim 2, wherein: the furnace top block fixing device comprises a pipe fixing step arranged on the outer wall of the furnace top fixing pipe, and a block fixing step corresponding to the pipe fixing step is arranged in the mounting through hole.
4. A furnace roof structure for a combustion furnace as claimed in claim 3, wherein: the furnace top block sealing device comprises sealing rock wool arranged above a plurality of furnace top blocks.
5. The furnace roof structure for a combustion furnace according to any one of claims 1 to 4, wherein: the block position adjusting device comprises a block horizontal adjusting device and a block height adjusting device.
6. The burner crown structure of claim 5, wherein: the block horizontal adjusting device comprises a connecting corrugated pipe fixedly arranged at the lower end of the auxiliary air supply pipe, and the lower end of the connecting corrugated pipe is connected with the upper end of the furnace top fixing pipe.
7. The burner crown structure of claim 6, wherein: the height adjusting device comprises a threaded adjusting pipe arranged at the lower end of the connecting corrugated pipe, and the upper end of the furnace top fixing pipe is provided with a height adjusting thread corresponding to the threaded adjusting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710967952.4A CN107764061B (en) | 2017-10-18 | 2017-10-18 | Furnace top structure for combustion furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710967952.4A CN107764061B (en) | 2017-10-18 | 2017-10-18 | Furnace top structure for combustion furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107764061A CN107764061A (en) | 2018-03-06 |
| CN107764061B true CN107764061B (en) | 2024-06-18 |
Family
ID=61268093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710967952.4A Active CN107764061B (en) | 2017-10-18 | 2017-10-18 | Furnace top structure for combustion furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107764061B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207456177U (en) * | 2017-10-18 | 2018-06-05 | 潍坊金丝达新能源科技有限公司 | Combustion furnace top construction |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4860253B2 (en) * | 2005-12-16 | 2012-01-25 | 東邦チタニウム株式会社 | Metal electron beam melting apparatus and metal melting method using the apparatus |
| CN102121795B (en) * | 2011-03-03 | 2013-05-08 | 重庆沃克斯科技股份有限公司 | Furnace top structure of heating furnace |
| CN202057191U (en) * | 2011-04-26 | 2011-11-30 | 中国石油化工股份有限公司 | Furnace roof lining structure of heating furnace |
| CN202420154U (en) * | 2011-12-26 | 2012-09-05 | 王玉福 | Energy-saving tunnel kiln |
| CN203881137U (en) * | 2014-05-21 | 2014-10-15 | 大连经济技术开发区森港机械刀片有限公司 | Arched furnace roof of medium-temperature thermal treatment furnace |
| CN204329615U (en) * | 2014-12-01 | 2015-05-13 | 赣州博晶科技有限公司 | A kind of Novel electric kiln |
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2017
- 2017-10-18 CN CN201710967952.4A patent/CN107764061B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207456177U (en) * | 2017-10-18 | 2018-06-05 | 潍坊金丝达新能源科技有限公司 | Combustion furnace top construction |
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| CN107764061A (en) | 2018-03-06 |
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Effective date of registration: 20181213 Address after: 261326 No. 71, Yangjiawa Village, Kuiju Street, Changyi City, Weifang City, Shandong Province Applicant after: Liu Zhenliang Address before: 261300 Jinsida Company of Kuiju Street, Changyi City, Weifang City, Shandong Province Applicant before: WEIFANG JINSIDA NEW ENERGY TECHNOLOGY Co.,Ltd. |
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