CN207179648U - CFB boiler built-in type blast cap - Google Patents
CFB boiler built-in type blast cap Download PDFInfo
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- CN207179648U CN207179648U CN201720668768.5U CN201720668768U CN207179648U CN 207179648 U CN207179648 U CN 207179648U CN 201720668768 U CN201720668768 U CN 201720668768U CN 207179648 U CN207179648 U CN 207179648U
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- blast cap
- fixture block
- cannelure
- cap cover
- wind bar
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Abstract
CFB boiler built-in type blast cap, blast cap are made up of blast cap cover and wind bar, and blast cap cover and wind bar are provided with conventional air holes, and cannelure and circumferential groove are additionally provided with blast cap cover inwall, and wind bar middle and upper part is provided with fixture block, and fixture block enters circumferential groove by cannelure；During installation combination, fixture block enters circumferential groove by cannelure, and blast cap cover and wind bar can be fixed by rotating to an angle；When blast cap cover and wind bar are removed, rotary wind calotte causes fixture block to be taken out by cannelure.The utility model reduces erecting and welding quantities and has saved wlding, while has evaded the problem of welding difficulty is big；Greatly reduce the blast cap cost of overhaul.
Description
Technical field
It the utility model is related to CFBB component, more particularly to CFB boiler built-in type blast cap.
Background technology
China coal utilization based on burning, CFBB (CFB boiler) in thermal power plant accounting by
It is cumulative big.CFBB fluidisation whether uniformly and can heat resistant and wear resistant damage will directly affect its burning effect
Rate, blast cap are the important components of CFBB, which determine CFBB whether can safely, it is economical and steady
Surely run.
Blast cap in current most of CFB boiler air distribution plate component uses bell-type windshield.Blast cap is by wind bar and cover group
Into conventional to be connected form using cover lower edge and wind bar (or wind bar boss) spot welding.Because wind bar and cover are all casting,
Therefore two be present in welding, first, casting welding easily cracks, it is insecure；Blast cap is changed or checks second, removing
When, it is necessary to blast cap can be just removed after pad is cleared up, and it is all alloy electrode typically to weld use, it is difficult to polish.Separately
On the one hand, blast cap abrasion needs to regularly replace, and is typically tapped using sledgehammer during replacing, dismounting air distribution plate is handled by the way of building material by laying bricks or stones,
Workload is big, while changing blast cap, adds the expense repaired and build material by laying bricks or stones.
The content of the invention
The defects of in order to overcome above-mentioned prior art, the purpose of this utility model are to provide CFB boiler built-in type wind
Cap, does not use welding manner connection blast cap cover and wind bar, laborsaving material-saving during installation；The abrasion of blast cap cover, which is changed, only need to change wind
Calotte.
In order to achieve the above object, the technical solution of the utility model is：
CFB boiler built-in type blast cap, blast cap are made up of blast cap cover 1 and wind bar 2, and blast cap cover 1 and wind bar 2 are respectively provided with
There is conventional air holes 6,7, cannelure 4 and circumferential groove 8 are additionally provided with the inwall of blast cap cover 1, the middle and upper part of wind bar 2 is provided with fixture block 5,
Fixture block 5 enters circumferential groove 8 by cannelure 4.
The quantity of described fixture block 5 is 1-3.
The utility model does not use welding manner connection blast cap cover and wind bar, and the He of cannelure 4 is set inside blast cap cover
Circumferential groove 8, cannelure 4 plays a part of blast cap cover 1 and wind bar 2 coordinates；Circumferential groove 8 plays blast cap cover 1 and wind bar 2 coordinates
Effect.The middle and upper part of wind bar 2 sets fixture block, the effect of fixed of blast cap cover 1；Laborsaving material-saving during installation；Blast cap cover wears more
Changing only need to change blast cap cover, greatly eliminate the expense removed whole blast cap and build material by laying bricks or stones.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that fixture block and cannelure are used cooperatively schematic diagram.
Embodiment
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Reference picture 1, Fig. 2, CFB boiler built-in type blast cap, blast cap are made up of blast cap cover 1 and wind bar 2, blast cap cover 1
Conventional air holes 6,7 is provided with wind bar 2, cannelure 4 and circumferential groove 8 are additionally provided with the inwall of blast cap cover 1.Set on wind bar 2
Fixture block 5 is equipped with, fixture block 5 enters circumferential groove 8 by cannelure 4,
Wind bar 2 is fixed on air distribution plate 3.
Material used in component be required to high temperature resistant, it is wear-resisting the characteristics of.
The quantity of described fixture block 5 is 1-3.
Operation principle of the present utility model is：
When reference picture 1, Fig. 2, blast cap cover 1 and the installation of wind bar 2 are combined, fixture block 5 enters circumferential groove 8, rotation by cannelure 4
Blast cap cover 1 and wind bar 2 can be fixed by turning certain angle；When blast cap cover 1 and wind bar 2 are removed, rotary wind calotte causes card
Block 5 is taken out by cannelure 4.
Claims (2)
1.CFB boiler built-in type blast caps, blast cap are made up of blast cap cover (1) and wind bar (2), blast cap cover (1) and wind bar (2)
It is provided with air holes (6,7), it is characterised in that be additionally provided with cannelure (4) and circumferential groove (8), wind on blast cap cover (1) inwall
Bar (2) middle and upper part is provided with fixture block (5), and fixture block (5) enters circumferential groove (8) by cannelure (4).
2. CFB boiler built-in type blast cap according to claim 1, it is characterised in that the quantity of described fixture block (5) is
1-3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720668768.5U CN207179648U (en) | 2017-06-09 | 2017-06-09 | CFB boiler built-in type blast cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720668768.5U CN207179648U (en) | 2017-06-09 | 2017-06-09 | CFB boiler built-in type blast cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207179648U true CN207179648U (en) | 2018-04-03 |
Family
ID=61734693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720668768.5U Active CN207179648U (en) | 2017-06-09 | 2017-06-09 | CFB boiler built-in type blast cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207179648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013905A (en) * | 2017-06-09 | 2017-08-04 | 广州市斤石电力科技有限公司 | A kind of CFB boiler built-in type blast cap |
-
2017
- 2017-06-09 CN CN201720668768.5U patent/CN207179648U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013905A (en) * | 2017-06-09 | 2017-08-04 | 广州市斤石电力科技有限公司 | A kind of CFB boiler built-in type blast cap |
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