CN202598498U - Bell wind cap - Google Patents
Bell wind cap Download PDFInfo
- Publication number
- CN202598498U CN202598498U CN 201220270882 CN201220270882U CN202598498U CN 202598498 U CN202598498 U CN 202598498U CN 201220270882 CN201220270882 CN 201220270882 CN 201220270882 U CN201220270882 U CN 201220270882U CN 202598498 U CN202598498 U CN 202598498U
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- cap body
- section
- cap
- bell
- air
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Abstract
The utility model discloses a bell wind cap comprising a wind cap body which consists of a cap body and a cap top; an air inlet cavity is arranged in the wind cap body; a plurality of air outlet holes which are arranged at intervals and are communicated with the air inlet cavity are distributed in the cap body in a circular shape; the lower end section of the cap body is a thickened section; the air outlet holes are arranged in the thickened section; the wall thicknesses of the thickened section and the cap top are more than the wall thickness of the upper end section of the cap body; and the air outlet holes are arranged in an oblique shape with the inside being higher and the outside being lower. The lower end section of the air inlet cavity is provided with an unthreaded hole. The bell wind cap has the advantages of strong wear resistant capability, long service life and small wear to adjacent wind caps, and can effectively prevent the leakage of dust.
Description
Technical field
The utility model relates to a kind of bell-jar blast cap.
Background technology
Blast cap is the vitals on the CFBB, and the bell-jar blast cap is comparatively even because of cloth wind, and is widely used.The bell-jar blast cap constitutes integrative-structure by cap body and roof fall, is equipped with horizontally disposed a plurality of exhaust vent on the cap body, and the bottom section of blast cap inner chamber is to be used for the screwed hole that is connected with blast pipe.Mainly there is following shortcoming in above-mentioned blast cap: the 1st, because the suffered degree of wear inequality of blast cap, the top of blast cap and the wearing and tearing of exhaust vent place are heavier, and its wall ratio of existing blast cap is more even, thereby exist concentrated wear more serious, shortened service life greatly.The 2nd, adopt the mode that is spirally connected to be connected with blast pipe, cause installation and removal inconvenience.The 3rd, exhaust vent is horizontally disposed with, and not only air-out speed is slow, and the wind that comes out directly impacts adjacent blast cap, the wearing and tearing that strengthened adjacent blast cap.
Summary of the invention
The technical problem that the utility model will solve provide a kind of wear-resistant with can reduce the bell-jar blast cap that adjacent blast cap weares and teares.
In order to solve the problems of the technologies described above; The utility model provides a kind of bell-jar blast cap with following structure; Comprise the blast cap body that constitutes by cap body and roof fall, establish air-inlet cavity in the blast cap body, a plurality of exhaust vents that are periphery on the cap body and are provided with and are communicated with at interval with air-inlet cavity; Its design feature is that the bottom section of said cap body is an overstriking section; A plurality of exhaust vents are located on the overstriking section, and all greater than the wall thickness of cap body upper end section, exhaust vent is low inside and high outside skewed setting for the wall thickness of overstriking section and the wall thickness of roof fall.
The bottom section of said air-inlet cavity is a unthreaded hole.
Said exhaust vent is an elliptical aperture.
The footpath, chamber at said air-inlet cavity top is greater than the footpath, chamber of other section of air-inlet cavity.
The height of said overstriking section is 40-55mm.
The wall thickness of said overstriking section is 1.3-2 a times of cap body upper end section wall thickness.
The wall thickness of said roof fall is 1.2-1.5 a times of cap body upper end section wall thickness.
The quantity of said exhaust vent is 6-8, and the aperture of exhaust vent is 12-15mm.
Structure thicker is adopted in the top of blast cap and bottom, makes it have stronger wear-resistant ability, can prolong its service life greatly.Exhaust vent is obliquely installed, and not only air-out is fast, can avoid air-flow that the adjacent blast cap that is arranged on the air distribution plate is caused direct impact, has reduced the air-flow wearing and tearing of adjacent blast cap; And help the mutual disturbance between coarse granule, and avoided thin ash to pour in down a chimney fully into air compartment, guaranteed the long-term safety operation of boiler.The bottom section of air-inlet cavity is a unthreaded hole, can adopt the mode of grafting to be connected with blast pipe, and installation and removal are all more convenient.
In sum, the advantage of the utility model is: wear-resistant ability is strong, and long service life is little to adjacent blast cap wearing and tearing, can effectively prevent the leak-stopping ash.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the utility model is done further to specify:
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the syndeton sketch map of the blast cap shown in Fig. 1.
The specific embodiment
As shown in Figure 1, the integrative-structure of blast cap body 1 for being made up of cap body 11 and roof fall 12 established air-inlet cavity 2 in the blast cap body 1, and roof fall 12 is the spherical crown shape, thereby makes the top of air-inlet cavity 2 also be the spherical crown shape.The footpath, chamber at air-inlet cavity 2 tops is greater than the footpath, chamber of other section of air-inlet cavity, and after high speed winds got into air-inlet cavity 2, because dilatation, dynamic pressure reduced, and can reduce impact and the wearing and tearing of air-flow to roof fall 12.The bottom section of cap body 11 is an overstriking section, and all greater than the wall thickness of cap body 11 upper end sections, the height of overstriking section is 40-55mm to the wall thickness of the wall thickness of overstriking section and roof fall 12, and the wall thickness of overstriking section is 1.3-2 a times of cap body 11 upper end section wall thickness; The wall thickness of roof fall 12 is 1.2-1.5 a times of cap body 11 upper end section wall thickness.The a plurality of exhaust vents 3 that are periphery on the chamber wall of overstriking section and are provided with and are communicated with at interval with air-inlet cavity 2, exhaust vent 3 is low inside and high outside skewed setting, and its quantity is with 6-8.If exhaust vent 3 is a circular hole, its aperture is that 12-15mm is advisable; If exhaust vent 3 is an elliptical aperture, the length of its minor axis is that 12-15mm is advisable.The bottom section of air-inlet cavity 2 is a unthreaded hole 4.
Blast cap and blast pipe 6 syndeton as shown in Figure 2, blast pipe 6 is made up of thin segment on top 61 and bottom thick section 62, forms step 63 between thin segment 61 and the thick section 62, blast cap 1 is plugged on the thin segment 61 and the bottom surface of blast cap 1 contacts with step 63.Blast pipe 6 is connected through its thick section 62 on the air distribution plate 5 of air compartment and with air compartment and is communicated with, and air compartment does not all illustrate in the drawings, and air compartment is a casing, the end face of casing and on fireproof material layer formation air distribution plate 5.Step 63 is concordant with air distribution plate 5 upper surfaces, and blast cap 1 is inserted on the thin segment 61 of blast pipe 6 through the unthreaded hole 4 of the bottom section of its air-inlet cavity 2.The inwall of unthreaded hole 4 will constitute the face contact matching with the outer surface of thin segment 61, is convenient to plug-in mounting and the purpose that is difficult for leaking out to reach.Wind in the air compartment gets in the air-inlet cavity 2 through blast pipe 6, and the gap through between blast pipe 6 and air-inlet cavity 2 inwalls blows out from exhaust vent 3.
Claims (8)
1. bell-jar blast cap; Comprise the blast cap body (1) that constitutes by cap body (11) and roof fall (12); Establish air-inlet cavity (2) in the blast cap body (1); The a plurality of exhaust vents (3) that are periphery on the cap body (11) and are provided with and are communicated with at interval with air-inlet cavity (2), the bottom section that it is characterized in that said cap body (11) is an overstriking section, a plurality of exhaust vents (3) are located on the overstriking section; All greater than the wall thickness of cap body (11) upper end section, exhaust vent (3) is low inside and high outside skewed setting to the wall thickness of the wall thickness of overstriking section and roof fall (12).
2. bell-jar blast cap as claimed in claim 1, the bottom section that it is characterized in that said air-inlet cavity (2) are unthreaded hole (4).
3. bell-jar blast cap as claimed in claim 1 is characterized in that said exhaust vent (3) is an elliptical aperture.
4. bell-jar blast cap as claimed in claim 1 is characterized in that the chamber footpath of the footpath, chamber at said air-inlet cavity (2) top greater than other section of air-inlet cavity (2).
5. bell-jar blast cap as claimed in claim 1, the height that it is characterized in that said overstriking section is 40-55mm.
6. bell-jar blast cap as claimed in claim 1, the wall thickness that it is characterized in that said overstriking section are 1.3-2 times of cap body (11) upper end section wall thickness.
7. bell-jar blast cap as claimed in claim 1, the wall thickness that it is characterized in that said roof fall (12) are 1.2-1.5 times of cap body (11) upper end section wall thickness.
8. bell-jar blast cap as claimed in claim 1, the quantity that it is characterized in that said exhaust vent (3) are 6-8, and the aperture of exhaust vent (3) is 12-15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220270882 CN202598498U (en) | 2012-06-11 | 2012-06-11 | Bell wind cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220270882 CN202598498U (en) | 2012-06-11 | 2012-06-11 | Bell wind cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202598498U true CN202598498U (en) | 2012-12-12 |
Family
ID=47316031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220270882 Expired - Fee Related CN202598498U (en) | 2012-06-11 | 2012-06-11 | Bell wind cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202598498U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869715A (en) * | 2019-02-22 | 2019-06-11 | 刘沁昱 | Slag leak-proof funnel cap and preparation method thereof and circulating fluidized bed boiler |
-
2012
- 2012-06-11 CN CN 201220270882 patent/CN202598498U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869715A (en) * | 2019-02-22 | 2019-06-11 | 刘沁昱 | Slag leak-proof funnel cap and preparation method thereof and circulating fluidized bed boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20190611 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |