CN101793404B - Boiler by-pass flue - Google Patents
Boiler by-pass flue Download PDFInfo
- Publication number
- CN101793404B CN101793404B CN2010101425674A CN201010142567A CN101793404B CN 101793404 B CN101793404 B CN 101793404B CN 2010101425674 A CN2010101425674 A CN 2010101425674A CN 201010142567 A CN201010142567 A CN 201010142567A CN 101793404 B CN101793404 B CN 101793404B
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- Prior art keywords
- ash
- pass
- boiler
- ash bucket
- pass line
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Abstract
The invention relates to a boiler by-pass flue which has compact and rational structure, saves space and has wide adjustment range, so as to lead ash to be discharged smoothly and ensure heat adsorption ability of a heating surface; the boiler by-pass flue comprises an upper ash bucket, an ash pipe and a lower ash chamber; the ash pipe is communicated with the bottom part of the upper ash bucket and the lower ash chamber, and the upper ash bucket is communicated with the lower ash chamber by the ash pipe; the boiler by-pass flue is characterized in that: the side part of the upper ash bucket and the lower ash chamber are communicated by a by-pass pipeline, and an inserted slab door is arranged at the inlet position at the upper part of the by-pass pipeline, when the inserted slab door is closed, the lower end of the inserted slab door is closely attached to the inner wall of the ash bucket wall, and an operation rail of the inserted slab door is inclined to the water plane and is arranged in the by-pass pipeline.
Description
Technical field
The present invention relates to the flue structure field of boiler, be specially a kind of boiler by-pass flue.
Background technology
All contain a certain amount of ash in the flue gas that general boiler combustion produces; The ash that the boiler that particularly uses coal, house refuse, RDF, RPF and biomass fuel etc. takes back-end surfaces to is more; When boiler need be provided with by-pass line; The structural configuration wasting space, and tend to run into dust stratification, stifled ash and the narrow problem of flow area adjustable range, finally cause the heating surface heat absorption capacity to reduce.
Summary of the invention
To the problems referred to above, the invention provides a kind of boiler by-pass flue, its compact conformation is reasonable, save the space, and adjustable range is wide, thereby causes the smooth discharge of ash, guarantees the heat absorption capacity of heating surface.
Its technical scheme is such: it comprises top ash bucket, ash tube, bottom smoke-box; Said ash tube is communicated with ash bucket bottom, top and bottom smoke-box; Said top ash bucket is communicated with said bottom smoke-box through ash tube; It is characterized in that: said top ash bucket sidepiece and said bottom smoke-box are connected through by-pass line; The upper entrance place of said by-pass line is provided with insertion plate door, and insertion plate door lower end when closing and said grey headwall inwall are close to, and the orbit of said insertion plate door favours horizontal plane and is installed on said by-pass line inside;
It is further characterized in that: the bilateral symmetry of said top ash bucket is furnished with said by-pass line; The orbit of said insertion plate door and the angle of inclination of horizontal plane are 50 ° ~ 90 °; It is inner that the top level of said by-pass line stretches into said top ash bucket, and the formed plane of the top port of said by-pass line is parallel with the flue gas flow direction direction, and the cross sectional shape that stretches into the inner said by-pass line of said top ash bucket is for circular or oval; Said by-pass line, ash tube are arranged between top ash bucket and the bottom smoke-box, and said by-pass line, ash tube horizontal direction do not exceed the horizontal width of top ash bucket and bottom smoke-box; The flue collector import of said bottom smoke-box is horn-like, and the middle part that faces the flue gas approach axis of said bottom smoke-box is provided with gas baffle; The coupling part of said top ash bucket and said ash tube is equipped with two baffle doors, and said pair of baffle door connects external control system; The outer wall of said by-pass line upper end is equipped with inspection door, and the outer wall of said top ash bucket is equipped with manhole door; The middle and lower part of said by-pass line is equipped with expansion joint, and the bottom of said ash tube is equipped with expansion joint;
After adopting said structure of the present invention, said top ash bucket sidepiece and said bottom smoke-box are connected through by-pass line, and this compact conformation is reasonable, the saving space; And the bilateral symmetry of said top ash bucket is furnished with said by-pass line; Said by-pass line and ash tube vertically are arranged between top ash bucket and the bottom smoke-box; Horizontal direction does not exceed the horizontal width of top ash bucket and bottom smoke-box, this structure more compact and reasonable, saved the space; When insertion plate door is closed; When this moment top ash is arranged on dropping to insertion plate door the time to be installed on said by-pass line inner because the orbit of said insertion plate door favours horizontal plane, so the insertion plate door when closing favours horizontal plane; Its angle of inclination is 50 ° ~ 90 °; So ash can since gravity to downslide, and since insertion plate door lower end and said grey headwall inwall when closing be close to, so ash enters into ash tube after can getting into the cavity of top ash bucket again; So it can prevent to produce dust stratification and clogging phenomenon in the by-pass line, guarantees the smooth discharge of ash; When ash amassed in the top of said by-pass line the horizontal upper end face, because the cross sectional shape that stretches into the inner said by-pass line of said top ash bucket is for circular or oval, ash can fall to grey headwall, enters into ash tube; Because by-pass line upper entrance place is provided with insertion plate door, insertion plate door can move along the orbit of insertion plate door, from the contract fully to the standard-sized sheet, thereby regulates flow area, and its flow area adjustable range is wide, guarantees the smooth discharge of ash; Two baffle doors are installed between said in addition top ash bucket and the said ash tube, and said pair of baffle door connects external control system, when flue collector is closed; Open by-pass line, but, also can open two baffle doors this moment simultaneously through the insertion plate door step-less adjustment flue gas flow area on the by-pass line; Ash tube can be put ash, can walk flue gas again, integrates to put ash and by-pass line; Therefore whole by-pass flue flow area adjustable range is wider, can adapt to the various operating conditions of boiler; After flue gas enters into the bottom smoke-box; Because the flue collector import is that the middle part that faces the flue gas approach axis horn-like, the bottom smoke-box is provided with gas baffle; So its flue gas is well spread when getting into the bottom smoke-box; Smoke-box is gone out comparatively evenly from the bottom, has guaranteed that more top can not produce dust stratification, clogging phenomenon because the flue gas of bottom is smooth, thereby has helped the heat absorption of heating surface;
In sum, this invention compact conformation is reasonable, saves the space, can prevent to produce in the by-pass line dust stratification and clogging phenomenon, the flow area adjustable range is wide.
Description of drawings
Fig. 1 is a front view structural representation of the present invention;
Fig. 2 is the left view structural representation of Fig. 1.
The specific embodiment
See Fig. 1, Fig. 2; It comprises top ash bucket 1, ash tube 2, bottom smoke-box 3, ash tube ash bucket 1 bottom, 2 connection top and bottom smoke-box 3, and top ash bucket 1 is through ash tube 2 connection bottom smoke-boxes 3; Top ash bucket 1 sidepiece and bottom smoke-box 3 are connected through by-pass line 4; The upper entrance place of by-pass line 4 is provided with insertion plate door 5, and insertion plate door 5 lower ends and grey headwall inwall 6 when closing are close to, and the orbit of insertion plate door 5 favours horizontal plane and is installed on by-pass line 4 inside;
The bilateral symmetry of top ash bucket 1 is furnished with by-pass line 4; The orbit of insertion plate door 5 and the angle of inclination of horizontal plane are 50 ° ~ 90 °; Top 7 levels of by-pass line 4 stretch into top ash bucket 1 inside, and the top port 8 formed planes of by-pass line 4 are parallel with the flue gas flow direction direction, and the cross sectional shape that stretches into the by-pass line 4 of top ash bucket 1 inside is circle or oval; By-pass line 4, ash tube 2 are arranged between top ash bucket 1 and the bottom smoke-box 3, and by-pass line 4, ash tube 2 horizontal directions do not exceed the horizontal width of top ash bucket 1 and bottom smoke-box 3; The flue collector import 9 of bottom smoke-box 3 is horn-like, and the middle part that faces the flue gas approach axis of bottom smoke-box 3 is provided with gas baffle 10; Top ash bucket 1 is equipped with two baffle doors 11 with the coupling part of ash tube 2, and two baffle doors 11 connect external control system (for existing mature technology, not drawing among the figure); The outer wall of by-pass line 4 upper ends is equipped with inspection door 12, and the outer wall of top ash bucket 1 is equipped with manhole door 13; The middle and lower part of by-pass line 4 is equipped with expansion joint 15, and the bottom of ash tube 2 is equipped with expansion joint 15.Among the figure, 14 be heating surface, 16 for gas approach, 17 for flue collector outlet, 18 be exhanst gas outlet.
Its operation principle is following: flue gas enters into top ash bucket 1 from gas approach 16; When by-pass line 4 is closed, when flue collector is opened; Flue gas flows out from flue collector outlet 17, feeds the flue collector import 9 of bottom smoke-box 3 through middle device (for existing maturing appts) back, and put ash by ash tube 2 this moment; And remaining one open-one close through two baffle doors 11, flue gas did not have leakage basically when the state opened that closes guaranteed to put ash;
When flue collector is closed, open by-pass line 4, but through the 5 step-less adjustment flue gas flow areas of the insertion plate door on the by-pass line 4, can open two baffle doors 11 this moment simultaneously, ash tube 2 can be put ash, can walk flue gas again, integrates to put ash and by-pass line.
Claims (9)
1. boiler by-pass flue; It comprises top ash bucket, ash tube, bottom smoke-box; Said ash tube is communicated with ash bucket bottom, top and bottom smoke-box; Said top ash bucket is communicated with said bottom smoke-box through ash tube, it is characterized in that: said top ash bucket sidepiece and said bottom smoke-box are connected through by-pass line, and the upper entrance place of said by-pass line is provided with insertion plate door; Insertion plate door lower end when closing and grey headwall inwall are close to, and the orbit of said insertion plate door favours horizontal plane and is installed on said by-pass line inside.
2. a kind of boiler by-pass flue according to claim 1 is characterized in that: the bilateral symmetry of said top ash bucket is furnished with said by-pass line.
3. a kind of boiler by-pass flue according to claim 1 is characterized in that: the orbit of said insertion plate door and the angle of inclination of horizontal plane are 50 ° ~ 90 °.
4. a kind of boiler by-pass flue according to claim 1; It is characterized in that: it is inner that the top level of said by-pass line stretches into said top ash bucket; The formed plane of the top port of said by-pass line is parallel with the flue gas flow direction direction, and the cross sectional shape that stretches into the inner said by-pass line of said top ash bucket is for circular or oval.
5. a kind of boiler by-pass flue according to claim 1; It is characterized in that: said by-pass line, ash tube are arranged between top ash bucket and the bottom smoke-box, and said by-pass line, ash tube horizontal direction do not exceed the horizontal width of top ash bucket and bottom smoke-box.
6. a kind of boiler by-pass flue according to claim 1 is characterized in that: the flue collector import of said bottom smoke-box is horn-like, and the middle part that faces the flue gas approach axis of said bottom smoke-box is provided with gas baffle.
7. a kind of boiler by-pass flue according to claim 1 is characterized in that: the coupling part of said top ash bucket and said ash tube is equipped with two baffle doors, and said pair of baffle door connects external control system.
8. a kind of boiler by-pass flue according to claim 1 is characterized in that: the outer wall of the upper end of said by-pass line is equipped with inspection door, and the outer wall of said top ash bucket is equipped with manhole door.
9. a kind of boiler by-pass flue according to claim 1 is characterized in that: the middle and lower part of said by-pass line is equipped with expansion joint, and the bottom of said ash tube is equipped with expansion joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101425674A CN101793404B (en) | 2010-04-09 | 2010-04-09 | Boiler by-pass flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101425674A CN101793404B (en) | 2010-04-09 | 2010-04-09 | Boiler by-pass flue |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101793404A CN101793404A (en) | 2010-08-04 |
| CN101793404B true CN101793404B (en) | 2012-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101425674A Expired - Fee Related CN101793404B (en) | 2010-04-09 | 2010-04-09 | Boiler by-pass flue |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537989B (en) * | 2012-02-23 | 2014-04-23 | 无锡华光锅炉股份有限公司 | Spiral deslagging device for grate of refuse incineration boiler |
| CN104390224A (en) * | 2014-11-04 | 2015-03-04 | 南车资阳机车有限公司 | Waste gas switching pipeline for waste heat boiler |
| CN108278626A (en) * | 2018-01-17 | 2018-07-13 | 山东钢铁集团日照有限公司 | A kind of new type of safe anti-explosion exhaust fume device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2634309Y (en) * | 2003-06-11 | 2004-08-18 | 江西江联能源环保股份有限公司 | Round cross section by pass flue pipe |
| CN2751234Y (en) * | 2004-12-30 | 2006-01-11 | 哈尔滨工大格瑞环保能源科技有限公司 | Wet-and-dry two-stage combined desulfurization and dust collection device |
| CN1330402C (en) * | 2005-02-21 | 2007-08-08 | 张彤 | Bag dust collector for coal burning boiler and furnace |
| JP2007239478A (en) * | 2006-03-06 | 2007-09-20 | Babcock Hitachi Kk | Device and method for exhaust emission control device |
| CN101033848A (en) * | 2006-12-06 | 2007-09-12 | 广州市粤首实业有限公司 | Flow equalizing low-resistance dust dedusting system |
| CN101310831B (en) * | 2007-05-21 | 2010-10-06 | 威海市正大环保设备有限公司 | Carbon calcination fume dry cleaning method and device thereof |
| CN201662071U (en) * | 2010-04-09 | 2010-12-01 | 无锡华光锅炉股份有限公司 | Improved boiler bypass flue |
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2010
- 2010-04-09 CN CN2010101425674A patent/CN101793404B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101793404A (en) | 2010-08-04 |
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