CN204063021U - The blast cap assembly of fluidized-bed combustion boiler - Google Patents
The blast cap assembly of fluidized-bed combustion boiler Download PDFInfo
- Publication number
- CN204063021U CN204063021U CN201420512668.XU CN201420512668U CN204063021U CN 204063021 U CN204063021 U CN 204063021U CN 201420512668 U CN201420512668 U CN 201420512668U CN 204063021 U CN204063021 U CN 204063021U
- Authority
- CN
- China
- Prior art keywords
- airduct
- bell jar
- fluidized
- cap assembly
- blast cap
- 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.)
- Expired - Lifetime
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 30
- 238000003466 welding Methods 0.000 claims description 22
- 238000009434 installation Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model discloses a kind of blast cap assembly of fluidized-bed combustion boiler, comprise: airduct (2) extending longitudinally, the first end (21) of this airduct is open, second end is closed by end wall (22), the sidewall of described airduct is provided with outstanding shoulder (24), and the region between described outstanding shoulder and described second end is provided with air port (23); Bell jar (3) extending longitudinally, the first end of this bell jar is open, second end is closed by end wall (32), the sidewall of bell jar is provided with air port (33), the end wall of described bell jar has the installing hole (31) running through this end wall, the end wall of described airduct is provided with limited post (25) outwardly, described bell jar is buckled on described airduct, to make described limited post drop on described outstanding shoulder through described installing hole and the first end of described bell jar, described limited post is fixedly connected with described installing hole.The installation and removal of the blast cap assembly of the utility model fluidized-bed combustion boiler are convenient.
Description
Technical field
The utility model relates to fluidized-bed combustion boiler technology, particularly, relates to a kind of blast cap assembly of fluidized-bed combustion boiler.
Background technology
The air distribution device of fluidized-bed combustion boiler is made up of air distribution plate and blast cap assembly, and effect is the boiling section bottom section making air enter boiler uniformly, to ensure that fuel burns under good fluidized state.Blast cap arrangement of components, on the inner air distribution plate of fluid bed boiler furnace, for carrying out even fluidizing to bed material in stove in fluidized-bed combustion boiler regular combustion process, ensures boiler normal combustion.
Fig. 1 is a kind of blast cap assembly assumption diagram of traditional fluidized-bed combustion boiler, this blast cap assembly comprises sleeve pipe 1, airduct 2 and bell jar 3, sleeve pipe 1 is fixed on air distribution plate 4 by the mode of cast, airduct 2 to be fixedly mounted in sleeve pipe 1, bell jar 3 tips upside down on the shoulder of airduct 2, and is welded and fixed at shoulder place and airduct 2.This blast cap assembly is after using after a while, bell jar needs to change owing to damaging, but Problems existing is, the space on the distance air distribution plate upper material surface, position that bell jar and airduct are welded and fixed is very little, and the bell jar that removing damaged bell jar is new with fixed installation is all very difficult.
Therefore, a kind of blast cap assembly of fluidized-bed combustion boiler of more convenient maintenance is needed.
Utility model content
The purpose of this utility model is to provide a kind of blast cap assembly of fluidized-bed combustion boiler, and this blast cap assembly is for convenience detach and install.
To achieve these goals, the utility model provides a kind of blast cap assembly of fluidized-bed combustion boiler, and this blast cap assembly comprises:
Airduct extending longitudinally, the first end of this airduct is open, second end contrary with described first end of described airduct is closed by end wall, the sidewall of described airduct is provided with outstanding shoulder at middle part along the longitudinal direction, and the region of described airduct between described outstanding shoulder and described second end is provided with air port;
Bell jar extending longitudinally, the first end of this bell jar is open, and second end contrary with described first end of described bell jar is closed by end wall, and the sidewall of described bell jar is provided with air port,
Wherein, the end wall of described bell jar has the installing hole running through this end wall, the end wall of described airduct is provided with limited post outwardly, described bell jar is buckled on described airduct, to make described limited post drop on described outstanding shoulder through described installing hole and the first end of described bell jar, described limited post is fixedly connected with described installing hole.
Preferably, described limited post reaches outside described installing hole.Further preferably, described limited post and described installing hole are fixedly connected by welding.Further preferably, described limited post is fixedly connected with by spot welding with described installing hole, and the pad of spot welding is uniformly distributed along described installing hole.
Preferably, described limited post is positioned at the center of the end wall of described airduct, and described mounting hole site is in the center of the end wall of described bell jar.
Preferably, this blast cap assembly also comprises sleeve pipe, and described sleeve pipe is fixedly mounted on air distribution plate, and described airduct is fixedly mounted in described sleeve pipe.
Further preferably, described sleeve pipe by cast mode and described air distribution plate fixedly mount, first end and second end of described sleeve pipe stretch out outside castable; The partial fixing of described airduct between described first end and described outstanding shoulder is arranged in described sleeve pipe, described outstanding shoulder drops on to be stated on the first end of sleeve pipe, the first end of described airduct stretches out outside the second end of described sleeve pipe, and the sidewall of described airduct is fixedly connected with the second end of described sleeve pipe.
Further preferably, the sidewall of described airduct and the second end of described sleeve pipe are fixedly connected by welding.Further preferably, described in be welded as spot welding, the pad of spot welding is uniformly distributed along the second end of described sleeve pipe.
By technique scheme, the first end of bell jar is supported on the outstanding shoulder of airduct, and the end wall of bell jar is installed by the limited post of installing hole and airduct, and the outside of the end wall of bell jar is fixedly connected with limited post, thus fixedly mounts relative with airduct for bell jar.After bell jar damages, remove being fixedly connected with between the installing hole of the end wall of bell jar and the limited post of airduct, the bell jar of damage can be taken off; After changing new bell jar, retighten connection at the installing hole place of limited post and new bell jar, the fixed installation of new bell jar can be completed.Operating position due to this operation is positioned at the second end of bell jar, and not by the restriction of operating space, therefore the replacing of bell jar is very convenient.In addition, the first end of the bell jar of the utility model blast cap assembly is supported on the outstanding shoulder of airduct, second end is fixedly connected with airduct, and with traditional only compared with the first end of the bell jar mounting structure fixing with airduct shoulder, the structure that this bell jar two ends are all installed is more firm.
Other feature and advantage of the present utility model are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for description, is used from explanation the utility model, but does not form restriction of the present utility model with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the structural representation that the blast cap assembly of conventional flow fluidized bed boiler connects.
The blast cap assembly connecting structure schematic diagram of a kind of preferred fluidized-bed combustion boiler of Fig. 2 the utility model.
Description of reference numerals
1 sleeve pipe 2 airduct
3 bell jar 4 air distribution plates
5 castable 2 airducts
Second end of first end 12 sleeve pipe of 11 sleeve pipes
The end wall of first end 22 airduct of 21 airducts
Shoulder is given prominence in the air port 24 of 23 airducts
25 limited post 31 installing holes
The air port of end wall 33 bell jar of 32 bell jars
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
See Fig. 2, the blast cap assembly of fluidized-bed combustion boiler of the present utility model comprises airduct 2 and bell jar 3, and airduct 2 has tubular structure extending longitudinally, and cross section is generally circle.The first end 21 that airduct 2 is positioned at bottom is open, the second end being positioned at top is closed by end wall 22, end wall 22 is provided with limited post 25 outwardly, the middle part of airduct sidewall is provided with outstanding shoulder 24, airduct 2 is provided with air port 23 on the sidewall on outstanding shoulder 24 top, and air port 23 also can be arranged on the end wall 22 of airduct.Described bell jar 3 is also tubular structure extending longitudinally, the first end that bell jar 3 is positioned at bottom is open, and the second end being positioned at top is closed by end wall 32, described end wall 32 has the installing hole 31 run through, the sidewall of bell jar 3 is provided with air port 33, and air port 33 preferably arranges sidewall position on the lower.Bell jar 3 tips upside down on airduct 2, the first end of bell jar drops on the outstanding shoulder 24 in the middle part of airduct 2, and support bell jar 3 by outstanding shoulder 24, the limited post 25 on the end wall 22 of airduct inserts in the installing hole 31 of bell jar 3, and stretch out from this installing hole, limited post 25 is fixedly connected with installing hole 31.The cross section of bell jar 3 and the cross section of airduct 2 adapt, and have gap between the lateral wall of the madial wall of bell jar 3 and the airduct 2 in bell jar 3, this gap is formed as the passage of wind.
Preferably, described limited post 25 stretches out a part from described installing hole 31, limited post 25 and installing hole 31 preferably adopt the mode of welding to be fixedly connected with further, spot welding is more preferably adopted to be fixedly connected with, the pad of spot welding is uniformly distributed along described installing hole 31, is such as uniformly distributed three pads.
Preferably, described limited post 25 is positioned at the center of the end wall 22 of described airduct 2, and described installing hole 31 is positioned at the center of the end wall 32 of described bell jar 3.
During the blast cap component operation of fluidized-bed combustion boiler described above, wind enters from the first end 21 of airduct 2, to the second end flowing of airduct, flows out, enters into the passage gaps between airduct 2 and bell jar 3, then flow out from the air port 33 of bell jar 3 from the air port 23 of airduct.
In technique scheme, the first end of bell jar 3 is supported on the outstanding shoulder 24 of airduct, the end wall 32 of bell jar is installed by the limited post 25 of installing hole 31 and airduct, and the outside of the end wall 32 of bell jar is fixedly connected with this limited post 25, thus fixedly mounts relative with airduct 2 for bell jar 3.After bell jar damages, remove being fixedly connected with between the installing hole 31 of bell jar and the limited post 25 of airduct, the bell jar of damage can be taken off, particularly when adopting the mode of spot welding to connect this installing hole 31 and limited post 25, adopt angle grinding machine in spot welding place polishing and this connection dismountable, very convenient; After changing new bell jar, retighten connection at installing hole 31 place of limited post 25 and new bell jar, the fixed installation of new bell jar can be completed.Operating position due to this operation is positioned at the second end of bell jar 3, and be namely usually in the top of installation site, thus operating space is unrestricted, and the replacing of bell jar is very convenient.And, the first end of the utility model bell jar is supported on the outstanding shoulder 24 of airduct, second end is fixedly connected with the limited post 25 of airduct, and with traditional only compared with the first end of the bell jar mounting structure fixing with airduct shoulder, this structure of all installing at bell jar two ends is more firm.
The blast cap assembly of above-mentioned fluidized-bed combustion boiler can further include sleeve pipe 1, and sleeve pipe 1 is relative with air distribution plate 4 to be fixedly mounted, and described airduct 2 fixedly mounts with sleeve pipe 1.
Sleeve pipe 1 is fixedly connected with air distribution plate 4 by the mode preferably by cast, castable 5 is filled between the outside of air distribution plate about 4 both sides and sleeve pipe 1, after castable 5 is solidified, sleeve pipe 1 can be fixedly mounted on air distribution plate 4, ensures that the first end 11 of sleeve pipe 1 and the second end 12 stretch out outside castable during cast.In sleeve pipe 1 described in the partial insertion of airduct 2 between first end 21 and outstanding shoulder 24, outstanding shoulder 24 drops on the first end 11 of sleeve pipe 1, supported by this first end 11, the first end 21 of airduct stretches out outside the second end 12 of sleeve pipe 1, and the sidewall of airduct 2 is fixedly connected with the second end 12 of sleeve pipe.The sidewall of preferred airduct adopts the mode of welding to be fixedly connected with the second end 12 of sleeve pipe, preferably adopts spot welding to be fixedly connected with further, and the pad of spot welding is uniformly distributed along the second end 12 of sleeve pipe 1, is such as uniformly distributed four pads.
In above-mentioned preferred version, blast cap assembly also comprises sleeve pipe 1, and bell jar 3 is relative with air distribution plate 4 fixing by this sleeve pipe with airduct 2, and after airduct 2 damages, the connection only needing dismounting and install between airduct and sleeve pipe, is therefore convenient to safeguard.In further preferred version, sleeve pipe second end 12 stretches out outside castable 5, the first end 21 of airduct stretches out outside the second end 12 of sleeve pipe, reach outside castable 5 owing to needing the position connected, this structure make between the sidewall of airduct 2 and the second end 12 of sleeve pipe be fixedly connected with or dismantle all very convenient, especially, when adopting spot welding as connected mode, angle grinding machine is utilized can to remove this connection easily in spot welding place polishing.
Below preferred embodiment of the present utility model is described by reference to the accompanying drawings in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the utility model illustrates no longer separately to various possible combination.
In addition, also can be combined between various different embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. the blast cap assembly of fluidized-bed combustion boiler, the blast cap assembly of this fluidized-bed combustion boiler comprises:
Airduct (2) extending longitudinally, the first end (21) of this airduct (2) is open, second end contrary with described first end of described airduct (2) is closed by end wall (22), the sidewall of described airduct (2) is provided with outstanding shoulder (24) at middle part along the longitudinal direction, and the region of described airduct (2) between described outstanding shoulder (24) and described second end is provided with air port (23);
Bell jar (3) extending longitudinally, the first end of this bell jar (3) is open, second end contrary with described first end of described bell jar (3) is closed by end wall (32), the sidewall of described bell jar (3) is provided with air port (33)
It is characterized in that, the end wall (32) of described bell jar (3) has the installing hole (31) running through this end wall (32), the end wall (22) of described airduct (2) is provided with limited post (25) outwardly, described bell jar (3) is buckled on described airduct (2), to make described limited post (25) through described installing hole (31) and the first end of described bell jar (3) drops on described outstanding shoulder (24), described limited post (25) is fixedly connected with described installing hole (31).
2. the blast cap assembly of fluidized-bed combustion boiler according to claim 1, is characterized in that, described limited post (25) reaches outside described installing hole (31).
3. the blast cap assembly of fluidized-bed combustion boiler according to claim 2, is characterized in that, described limited post (25) and described installing hole (31) are fixedly connected by welding.
4. the blast cap assembly of fluidized-bed combustion boiler according to claim 3, it is characterized in that described limited post (25) is fixedly connected with by spot welding with described installing hole (31), the pad of spot welding is uniformly distributed along described installing hole (31).
5. the blast cap assembly of the fluidized-bed combustion boiler according to claim 1-4 any one, it is characterized in that, described limited post (25) is positioned at the center of the end wall (22) of described airduct (2), and described installing hole (31) is positioned at the center of the end wall (32) of described bell jar (3).
6. the blast cap assembly of the fluidized-bed combustion boiler according to claim 1-4 any one, it is characterized in that, the blast cap assembly of this fluidized-bed combustion boiler also comprises sleeve pipe (1), described sleeve pipe (1) is fixedly mounted on air distribution plate (4), and described airduct (2) is fixedly mounted in described sleeve pipe (1).
7. the blast cap assembly of fluidized-bed combustion boiler according to claim 6, it is characterized in that, described sleeve pipe (1) by cast mode and described air distribution plate (4) fixedly mount, the first end (11) of described sleeve pipe (1) and the second end (12) stretch out outside castable (5); Described airduct (2) partial fixing be arranged between described first end (21) and described outstanding shoulder (24) is arranged on described sleeve pipe (1), described outstanding shoulder (24) is dropped on the first end (11) of described sleeve pipe (1), the first end (21) of described airduct (2) stretches out outside second end (12) of described sleeve pipe (1), and the sidewall of described airduct (2) is fixedly connected with second end (12) of described sleeve pipe (1).
8. the blast cap assembly of fluidized-bed combustion boiler according to claim 7, is characterized in that, the sidewall of described airduct (2) and second end (12) of described sleeve pipe (1) are fixedly connected by welding.
9. the blast cap assembly of fluidized-bed combustion boiler according to claim 8, is characterized in that, described in be welded as spot welding, the pad of spot welding is uniformly distributed along second end (12) of described sleeve pipe (1).
10. the blast cap assembly of fluidized-bed combustion boiler according to claim 6, it is characterized in that, described limited post (25) is positioned at the center of the end wall (22) of described airduct (2), and described installing hole (31) is positioned at the center of the end wall (32) of described bell jar (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420512668.XU CN204063021U (en) | 2014-09-05 | 2014-09-05 | The blast cap assembly of fluidized-bed combustion boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420512668.XU CN204063021U (en) | 2014-09-05 | 2014-09-05 | The blast cap assembly of fluidized-bed combustion boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204063021U true CN204063021U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420512668.XU Expired - Lifetime CN204063021U (en) | 2014-09-05 | 2014-09-05 | The blast cap assembly of fluidized-bed combustion boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN204063021U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122952A (en) * | 2016-08-17 | 2016-11-16 | 山西平朔煤矸石发电有限责任公司 | A kind of CFB boiler nested type blast cap air-distribution device and remodeling method thereof |
| CN106678786A (en) * | 2017-03-13 | 2017-05-17 | 哈尔滨红光锅炉总厂有限责任公司 | Bell jar type wind cap for environment-friendly energy-saving circulating fluidized bed boiler |
| JP6235189B1 (en) * | 2017-08-30 | 2017-11-22 | 三菱日立パワーシステムズ株式会社 | Air nozzle, outer cylinder, boiler, power generation system, and method for replacing outer cylinder of air nozzle |
-
2014
- 2014-09-05 CN CN201420512668.XU patent/CN204063021U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122952A (en) * | 2016-08-17 | 2016-11-16 | 山西平朔煤矸石发电有限责任公司 | A kind of CFB boiler nested type blast cap air-distribution device and remodeling method thereof |
| CN106678786A (en) * | 2017-03-13 | 2017-05-17 | 哈尔滨红光锅炉总厂有限责任公司 | Bell jar type wind cap for environment-friendly energy-saving circulating fluidized bed boiler |
| JP6235189B1 (en) * | 2017-08-30 | 2017-11-22 | 三菱日立パワーシステムズ株式会社 | Air nozzle, outer cylinder, boiler, power generation system, and method for replacing outer cylinder of air nozzle |
| WO2019043830A1 (en) * | 2017-08-30 | 2019-03-07 | 三菱日立パワーシステムズ株式会社 | Air nozzle, outer casing, boiler, power generation system, and method for replacing air nozzle outer casing |
| CN111065857A (en) * | 2017-08-30 | 2020-04-24 | 三菱日立电力系统株式会社 | Air nozzle, outer cylinder, boiler, power generation system, and method for replacing outer cylinder of air nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141231 |