CN215723175U - Air inlet hood for circulating fluidized bed - Google Patents
Air inlet hood for circulating fluidized bed Download PDFInfo
- Publication number
- CN215723175U CN215723175U CN202122100090.XU CN202122100090U CN215723175U CN 215723175 U CN215723175 U CN 215723175U CN 202122100090 U CN202122100090 U CN 202122100090U CN 215723175 U CN215723175 U CN 215723175U
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- CN
- China
- Prior art keywords
- core pipe
- holes
- fan housing
- air
- fluidized bed
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- 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.)
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 239000002893 slag Substances 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000003818 cinder Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The utility model provides an air inlet hood for a circulating fluidized bed, which comprises a core pipe and an air cover; the upper part of the core pipe is circumferentially provided with a plurality of through holes, the middle part of the core pipe is circumferentially and uniformly provided with a plurality of clamping blocks, the lower part of the core pipe is provided with an annular fixing plate, and the fixing plate is circumferentially provided with a plurality of through holes; an air cavity corresponding to the through hole is formed in the fan housing, a plurality of air outlet holes are formed in the side wall of the fan housing along the circumferential direction and correspond to the air cavity, a wind shield is hinged to the outer portion of the fan housing and corresponds to the air outlet holes, a plurality of limiting grooves corresponding to the clamping blocks are formed in the fan housing, limiting rings corresponding to the clamping blocks are sequentially connected to the top ends of the limiting grooves, and a plurality of threaded blind holes corresponding to the through holes are formed in the bottom end of the fan housing along the circumferential direction; the core pipe and the fan cover are fixed together through bolts corresponding to the threaded blind holes. The utility model can not only ensure the tight and stable connection of the wind cover and the core pipe, but also facilitate the cleaning and maintenance of the wind cover and the core pipe, thereby ensuring the practicability of the wind cover and the core pipe.
Description
Technical Field
The utility model belongs to the technical field of circulating fluidized bed boiler hoods, and particularly relates to an air inlet hood for a circulating fluidized bed.
Background
The air cap used by the circulating fluidized bed boiler has more types, the air cap is one part of an air distribution device of the boiler, and the air distribution device has the function of enabling air to uniformly enter the cross section of the bottom of the boiling section so as to ensure the combustion of fuel at a good boiling state. The hood generally includes two parts, one is the dustcoat, and one is the takeover, and the exhaust vent along the horizontal direction is generally processed at the dustcoat to current boiler hood, and this structural design leads to great soot to block up in exhaust vent department easily, and the air current that comes out from the exhaust vent erodees adjacent hood easily, causes the hood wearing and tearing.
In addition, current hood, dustcoat and takeover generally adopt the form of electric welding or threaded connection, and wherein the spot welding is not firm easily not hard up, and the too many inconvenient maintenance of spot welding, and threaded connection is heated the back and is out of shape seriously, leads to connecting insecurely. The hood as a consumable product is frequently replaced, and meanwhile, the environment of the hood is severe and the firmness of the hood must be ensured, and the contradiction between the two methods still needs to be solved.
The utility model provides an air inlet hood for a circulating fluidized bed, which is combined with years of design and use experience of related fields and over-strong professional knowledge to overcome the defects.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an air inlet hood for a circulating fluidized bed, aiming at the defects of the prior art, and the specific scheme is as follows:
an air inlet hood for a circulating fluidized bed comprises a core pipe and an air cover; the upper part of the core pipe is circumferentially provided with a plurality of through holes, the middle part of the core pipe is circumferentially and uniformly provided with a plurality of clamping blocks, the lower part of the core pipe is provided with an annular fixing plate, and the fixing plate is circumferentially provided with a plurality of through holes; an air cavity corresponding to the through hole is formed in the fan cover, a plurality of air outlet holes are formed in the side wall of the fan cover along the circumferential direction and correspond to the air cavity, a wind shield is hinged to the outer portion of the fan cover and corresponds to the air outlet holes, a plurality of limiting grooves corresponding to the clamping blocks are formed in the fan cover, limiting rings corresponding to the clamping blocks are sequentially connected to the top ends of the limiting grooves, and a plurality of threaded blind holes corresponding to the through holes are formed in the bottom end of the fan cover along the circumferential direction; and the core pipe and the fan cover are fixed together through bolts corresponding to the threaded blind holes.
Based on the above, the bottom of air cavity is equipped with a plurality of row cinder notches along circumference.
Based on the above, a plurality of limiting grooves corresponding to each other are arranged on the fixing plate and at the bottom of the fan cover, and graphite washers are arranged at the limiting grooves.
Based on the above, the air outlet is obliquely arranged downwards.
Compared with the prior art, the utility model has substantive characteristics and progress, and particularly has the following advantages:
1. according to the utility model, the connecting structure of the wind cover and the core pipe is convenient for the fixed installation of the wind cover and the core pipe, and can prevent the wind cover and the core pipe from loosening and leaking, so that the efficient work of the wind cap is ensured, and the service life of the wind cap can be prolonged.
2. In the utility model, considering that certain particles can be accumulated in the air cavity in the use process of the blast cap, a plurality of slag discharge ports are arranged at the bottom of the air cavity along the circumferential direction in order to discharge the particles.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention in cross-section and in isolation.
FIG. 2 is a top view of the core tube of the present invention.
Fig. 3 is an enlarged schematic view at a in fig. 1.
In the figure: 1. a core tube; 2. a fan housing; 3. a through hole; 4. a clamping block; 5. a fixing plate; 6. a bolt; 7. a threaded blind hole; 8. an air cavity; 9. an air outlet; 10. a limiting ring; 11. a slag discharge port; 12. a graphite gasket; 13. a limiting groove; 14. a wind deflector.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments.
Examples
As shown in fig. 1-3, the present invention provides an air inlet hood for a circulating fluidized bed, which comprises a core pipe 1 and an air cover 2; the upper part of the core tube 1 is circumferentially provided with a plurality of through holes 3, the middle part of the core tube 1 is circumferentially and uniformly distributed with a plurality of clamping blocks 4, the lower part of the core tube 1 is provided with an annular fixing plate 5, and the fixing plate 5 is circumferentially provided with a plurality of through holes; an air cavity 8 corresponding to the through hole 3 is formed in the fan housing 2, a plurality of air outlet holes 9 are formed in the side wall of the fan housing 2 corresponding to the air cavity 8 along the circumferential direction, a wind shield 14 is hinged to the outer portion of the fan housing 2 corresponding to the air outlet holes 9, a plurality of limiting grooves 13 corresponding to the fixture blocks 4 are further formed in the fan housing 2, the top ends of the limiting grooves 13 are sequentially connected with limiting rings 10 corresponding to the fixture blocks 4, and a plurality of threaded blind holes 7 corresponding to the through holes are formed in the bottom end of the fan housing 2 along the circumferential direction; the core pipe 1 and the fan cover 2 are fixed together through bolts 6 corresponding to the threaded blind holes 7.
Considering that some dust may be accumulated in the air cavity 8 after the hood is used for a long time, in order to ensure smooth air flow, a plurality of slag discharge ports 11 are arranged at the bottom of the air cavity 8 along the circumferential direction.
In order to ensure the connection tightness of the wind shield 2 and the core pipe 1, a plurality of limiting grooves 13 corresponding to each other are arranged on the fixing plate 5 and the bottom of the wind shield 2, and graphite gaskets 12 are arranged at the limiting grooves 13.
In order to prevent external dust from entering the air cavity 8 and simultaneously prevent the gas discharged from the hood from eroding the surrounding hood, the air outlet 9 is arranged obliquely downwards.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the utility model or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the utility model as defined by the appended claims.
Claims (4)
1. The utility model provides a circulating fluidized bed is with air inlet hood which characterized in that: comprises a core pipe (1) and a fan cover (2); the upper part of the core pipe (1) is circumferentially provided with a plurality of through holes (3), the middle part of the core pipe (1) is circumferentially and uniformly provided with a plurality of clamping blocks (4), the lower part of the core pipe (1) is provided with an annular fixing plate (5), and the fixing plate (5) is circumferentially provided with a plurality of through holes; an air cavity (8) aiming at the through hole (3) is formed in the fan housing (2), a plurality of air outlet holes (9) are formed in the side wall of the fan housing (2) along the circumferential direction and correspond to the air cavity (8), a wind shield (14) is hinged to the outer portion of the fan housing (2) and correspond to the air outlet holes (9), a plurality of limiting grooves (13) corresponding to the fixture blocks (4) are further formed in the fan housing (2), limiting rings (10) corresponding to the fixture blocks (4) are sequentially connected to the top ends of the limiting grooves (13), and a plurality of threaded blind holes (7) corresponding to the through holes are formed in the bottom end of the fan housing (2) along the circumferential direction; the core pipe (1) and the fan cover (2) are fixed together through bolts (6) corresponding to the threaded blind holes (7).
2. The air intake hood for the circulating fluidized bed according to claim 1, wherein: the bottom of the air cavity (8) is provided with a plurality of slag discharge openings (11) along the circumferential direction.
3. The air intake hood for the circulating fluidized bed according to claim 1, wherein: a plurality of limiting grooves (13) corresponding to each other are formed in the fixing plate (5) and the bottom of the fan cover (2), and graphite gaskets (12) are arranged in the limiting grooves (13).
4. The air intake hood for the circulating fluidized bed according to claim 1, wherein: the air outlet hole (9) is obliquely arranged downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122100090.XU CN215723175U (en) | 2021-09-02 | 2021-09-02 | Air inlet hood for circulating fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122100090.XU CN215723175U (en) | 2021-09-02 | 2021-09-02 | Air inlet hood for circulating fluidized bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215723175U true CN215723175U (en) | 2022-02-01 |
Family
ID=80011125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122100090.XU Active CN215723175U (en) | 2021-09-02 | 2021-09-02 | Air inlet hood for circulating fluidized bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215723175U (en) |
-
2021
- 2021-09-02 CN CN202122100090.XU patent/CN215723175U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 457500 Puzhou chemical industry park, fan County, Puyang City, Henan Province Patentee after: Henan Huasong New Materials Technology Co.,Ltd. Country or region after: China Address before: 457500 Puzhou chemical industry park, fan County, Puyang City, Henan Province Patentee before: Puyang Far East Technology Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |