CN105841182B - A kind of biomass combustion furnace exhaust apparatus - Google Patents
A kind of biomass combustion furnace exhaust apparatus Download PDFInfo
- Publication number
- CN105841182B CN105841182B CN201610400532.3A CN201610400532A CN105841182B CN 105841182 B CN105841182 B CN 105841182B CN 201610400532 A CN201610400532 A CN 201610400532A CN 105841182 B CN105841182 B CN 105841182B
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- Prior art keywords
- cap
- upper cap
- lower cover
- air
- cover cap
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L1/00—Passages or apertures for delivering primary air for combustion
- F23L1/02—Passages or apertures for delivering primary air for combustion by discharging the air below the fire
Abstract
The invention discloses a kind of biomass combustion furnace exhaust apparatus, including straight airduct, lower cover cap and upper cap, it is characterized in that, the straight airduct upper end mouth of pipe periphery is provided with lower cover cap, upper cap is installed above lower cover cap, the upper surface of upper cap is the conical surface or spherical structure, is air outlet or air-out passage between upper cap and lower cover cap, and straight airduct is connected with air outlet or air-out passage.Present invention wind distribution in burner hearth all evenly, effectively controls the situation generation of localized hyperthermia.The umbrella shape lateral surface of upper cap is conducive to fuel to move downward, and prevents fuel from resting on upper cap upper surface, makes fuel supplement uniform.Upper cap is flexibly connected by upper cap fix bar with straight airduct endoporus, by its own gravitational orientation, safeguards convenient during air outlet load and unload.
Description
Technical field
The invention belongs to the combustion furnace of solid fuel, more particularly to a kind of exhaust apparatus of biomass combustion furnace.
Background technology
Existing biomass combustion furnace burner hearth air outlet, to burner hearth air blast, causes oxidant with circular hole air-out mode（It is empty
Gas）The local location of fuel is concentrated on, the possibility of fuel slagging in burner hearth is increased, the work of combustion furnace has been had a strong impact on
Performance.Therefore, prior art also needs further perfect.
The content of the invention
For above-mentioned the deficiencies in the prior art, present invention aims at provide a kind of exhaust apparatus of biomass combustion furnace.
The technical solution adopted by the present invention is：
A kind of biomass combustion furnace exhaust apparatus, including straight airduct, lower cover cap and upper cap, the straight airduct upper end mouth of pipe
Periphery, which is provided with above lower cover cap, lower cover cap, is provided with upper cap, and the upper surface of upper cap is the conical surface or spherical structure, upper cap
It is air outlet or air-out passage between lower cover cap, straight airduct is connected with air outlet or air-out passage.
Further, lower section is connected with upper cap fix bar in the middle of upper cap, and some upper cap positioning bars are solid along upper cap
Fixed pole axis direction is evenly distributed on the outside of upper cap fix bar on the face of cylinder, outside the groove profile of some upper cap positioning bar compositions
Cylinder is flexibly connected with straight airduct inner hole wall and forms several groove profile ventilating ducts, straight airduct by several groove profile ventilating ducts with
Air outlet or air-out passage connection.
Further, the groove profile outside cylinder of some upper cap positioning bars composition with straight airduct endoporus is concentric is flexibly connected, it is right
Upper cap and the concentric activity orientation of straight airduct.
Further, lower cover cap is provided with the lid of several support blocks or support bar, several support blocks or support bar composition
The structure of cap contact surface is corresponding with the structure of upper cap contact surface, upper cap under the support of support block or support bar with lower cover cap
Form several straight airduct air outlets or air-out passage.
Further, the height of upper cap and it is outer diametrically more than lower cover cap height and it is outer diametrically.
Further, upper cap is provided with inner face structure or bottom surface structure, and the inner face structure of upper cap is taper or round platform
Shape, upper cap bottom surface structure is plane, and the upper end surface structure of lower cover cap is corresponding with the lower surface of upper cap or bottom surface structure.
Further, upper cap is beveled structure, and the inner face structure of upper cap is taper or truncated cone-shaped, the upper end of lower cover cap
Face is truncated cone-shaped structure, and the upper end surface structure of lower cover cap is corresponding with the inner face structure of upper cap；Lower cover cap upper surface is circumferentially
Direction is uniformly provided with several lower cover cap convexes, the contact surface of several lower cover cap convexes formation and the inner face pair of upper cap
Should, upper cap is taper air-out with the air-out direction of lower cover cap formation air outlet or air-out passage under the support of lower cover cap convex
Direction.
Further, upper cap is cone or spherical surface body structure, and upper cap bottom surface structure is plane, and lower cover cap is flat board knot
Structure, the upper end surface structure of lower cover cap is corresponding with the bottom surface structure of upper cap；If lower cover cap upper surface is along the circumferential direction uniformly provided with
Dry lower cover cap convex, the contact surface of several lower cover cap convexes formation is corresponding with the bottom surface of upper cap, and upper cap is in lower cover cap
It is annular air direction to form air outlet or the air-out direction of air-out passage with lower cover cap under the support of convex.
Further, vertical distribution is on outer annular passage in a ring for straight airduct, high, short two kinds of adjacent installations；Curved airduct with
Annular air channel is connected；Annular passage point airduct is connected with outer annular passage and annular air channel simultaneously；Burning wind band is arranged on
The lower outside of lower furnace portion, is connected with burning wind band valve and annular passage point airduct respectively.
Further, outer annular passage and annular air channel be in feed pipe concentric position, above the ash discharge gear, enter
The lower end of expects pipe is charging aperture；Feed pipe is radially provided with lower air duct air-out on the position same level circumference relative to lower air duct
Hole；The outer panel upper end of lower air duct and the bottom plate of lower furnace portion are connected, and the lower end of lower air duct and the lower end flanges of feed pipe are connected.
Beneficial effect of the present invention is obvious：
Straight airduct by straight airduct air outlet to burner hearth fuel air blast, because draught area is much smaller than air-out in straight airduct
The draught area of mouth or air-out passage, so the wind speed for reaching burner hearth is fixing the feelings of the blow rate required much smaller than wind speed in straight airduct
Under condition, the blow rate required of unit volume fuel is reduced in the unit interval（Compared with circular hole air-out airduct）, straight airduct upper end is installed
There is a lower cover cap, upper cap is installed above lower cover cap, ineffective taper air-out direction or use annular air direction, wind is in burner hearth
All evenly, the situation for effectively controlling localized hyperthermia occurs for distribution.
The dust produced in the upper cap of umbrella shape upper surface, combustion process is installed due to dynamic by charging above lower cover cap
The effect of power and self gravitation, slides towards burner hearth bottom along umbrella shape outside, prevents dust from resting on upper cap outer surface；Combustion
Because the consumption of fuel from upper furnace to lower furnace portion, it is necessary to constantly supplement fuel, on the outside of the umbrella shape of upper cap during burning
Face is conducive to fuel to move downward, and prevents fuel from resting on upper cap upper surface, makes fuel supplement uniform.
According to the Air-blowing plan of taper air-out direction, upper cap and lower cover cap lateral surface are umbrella shape, and formation dips down
Oblique air outlet, adds the resistance that dust enters air outlet.Cause straight airduct and its group when during ash discharge due to shaker vibration
The dust of the resonance of part, upper cap and lower cover cap surface slides along on the outside of umbrella shape towards burner hearth bottom, prevents dust and tar
Cohere in upper cap and lower cover cap surface, to keep blower chamber clean and tidy.
Upper cap is flexibly connected by upper cap fix bar with straight airduct endoporus, by its own gravitational orientation, safeguards air-out
It is convenient during mouth to load and unload.
Brief description of the drawings
Fig. 1 is the exhaust apparatus structural representation of the embodiment of the present invention 1.
Fig. 2 is the upper cap structural representation of the embodiment of the present invention 1.
Fig. 3 is the upper cap overlooking the structure diagram of the embodiment of the present invention 1.
Fig. 4 is the lower cover cap structural representation of the embodiment of the present invention 1.
Fig. 5 is the lower cover cap overlooking the structure diagram of the embodiment of the present invention 1.
Fig. 6 is the exhaust apparatus structural representation of the embodiment of the present invention 1.
Fig. 7 is the upper cap structural representation of the embodiment of the present invention 1.
Fig. 8 is the upper cap overlooking the structure diagram of the embodiment of the present invention 1.
Fig. 9 is the lower cover cap structural representation of the embodiment of the present invention 1.
Figure 10 is the lower cover cap overlooking the structure diagram of the embodiment of the present invention 1.
Figure 11 is the taper air-out direction schematic diagram of the embodiment of the present invention 1.
Figure 12 is the annular air direction schematic diagram of the embodiment of the present invention 2.
Figure 13 is discharge pipe mounting structure schematic diagram of the present invention.
Figure 14 is combustion furnace structure schematic diagram of the present invention.
In figure：Taper air-out direction 1, annular air direction 2, lower furnace portion 3, ash discharge motor 4, ash discharge gear 5 scrapes hawk
6, lower air duct 7, lower air duct exhaust vent 8, feed pipe 9, ash releasing tube 10, ash discharge valve 11, lower air duct blast pipe 12, lower air duct valve
13, burning wind band 14, burning wind band valve 15, annular passage point airduct 16, vibrator 17, vibratory sieve 18, straight airduct 19, straight wind
Pipe air outlet 20, outer annular passage 21, annular air channel 22, curved airduct exhaust vent 23, curved airduct 24, vibratory sieve mesh 25, on
Block fix bar 26, lower cover cap 27,31, lower cover cap convex 28,33, upper cap 29,32, upper cap positioning bar 30.
Embodiment
The present invention can be embodied by the technical scheme in the content of the invention, can be to this hair by the following examples
It is bright to be further described, however, the scope of the present invention is not limited to following embodiments.
Embodiment 1：
The straight upper end of airduct 19 is provided with lower cover cap 27, and the top of lower cover cap 27 is provided with upper cap 29, and upper cap 29 is by upper
Block fix bar 26 is flexibly connected with the straight endoporus of airduct 19, and some upper cap positioning bars 30 are towards the axis side of upper cap fix bar 26
To being evenly distributed on the outside disc of upper cap fix bar 26, the groove profile outside cylinder that some upper cap positioning bars 30 are constituted with it is straight
The endoporus of airduct 19 is flexibly connected with one heart, makes upper cap 29 and the concentric activity orientation of straight airduct 19, and upper cap 29 is beveled structure, on
The inner face structure of block 29 is taper or truncated cone-shaped, and the upper surface of lower cover cap 27 is truncated cone-shaped structure, inner with upper cap 29
Face correspondence.
Several lower cover cap convexes 28 formation taper it is corresponding with the inner face taper of upper cap 29, lower cover cap convex 28 with it is upper
The contact surface of block 29 is connected, and upper cap 29 forms several straight airduct air-out under the support of lower cover cap convex 28 with lower cover cap 27
Mouth 20, air-out direction now is taper air-out direction 1.
Vertical distribution is on outer annular passage 21 in a ring for straight airduct 19, high, short two kinds of adjacent installations.
The lower end of feed pipe 9 is charging aperture, and upper end and the bottom plate of lower furnace portion 3 are concentric to be fixedly connected and stretch into burner hearth
Portion, feed pipe 9 is radially provided with lower air duct exhaust vent 8 on the position same level circumference relative to lower air duct 7；Lower air duct 7
Outer panel upper end is connected with the bottom plate of lower furnace portion 3, and the lower end of lower air duct 7 is connected with the lower end flanges of feed pipe 9；Lower air duct enters
The one end of airduct 12 is connected with lower air duct valve 13, and the other end is connected with lower air duct 7；The upper end of ash releasing tube 10 and lower furnace portion 3
Bottom plate ash discharging hole is connected, and lower end is connected with ash discharge valve 11；Ash discharge motor 4 is connected with ash discharge gear 5；It is row to scrape hawk 6
Spoke on grey gear 5；Ash discharge gear 5 is rotated with the outside of feed pipe 9 and is connected, its lower surface and the contacts baseplate of lower furnace portion 3
Connection；The wind band 14 that burns is arranged on the lower outside of lower furnace portion 3, respectively with burning wind band valve 15 and annular passage point airduct
16 connections；Vibrator 17 is fixedly connected with vibratory sieve 18, and passes through lower furnace portion 3 with seal form, is uniformly opened on vibratory sieve 18
There is vibratory sieve mesh 25；Straight airduct 19 is connected with outer annular passage 21；Curved airduct 24 is connected with annular air channel 22；Annular passage
Airduct 16 is divided to be connected simultaneously with outer annular passage 21 and annular air channel 22；Outer annular passage 21 and annular air channel 22 be in
The concentric position of feed pipe 9, positioned at the top of ash discharge gear 5.
Operation principle：
When starting combustion furnace power supply, automatic feeding mechanism is fed by feed pipe 9 to burner hearth, when material position reaches setting material position
During position, automatic feeding mechanism stops charging.Now, ash discharge valve 11 is closed.Open lower air duct valve 13, burning wind band valve
15.Starting ignition, combustion furnace initially enters working condition, at the same time, is said by lower air duct valve 13, lower air duct 7, leeward
Air holes 8 is to burner hearth air blast；By the wind band valve 15 that burns, burning wind band 14, annular passage point airduct 16, outer annular passage 21,
Annular air channel 22, straight airduct 19, curved airduct 24, curved airduct exhaust vent 23, straight airduct air outlet 20 to burner hearth air blast, due to
Straight airduct air outlet 20 is annular air hole, so air blast is than more uniform；It is crater by igniting and the air blast of top air channel
Imflammable gas it is combustion-supporting.
The airflow direction of straight airduct 19 is as shown in figure 11.In combustion process, because the lateral surface of upper cap 29 is taper surface, combustion
Grey foam produced by material is easy to slide downwards from taper（Effect is same when vibrating ash discharge including closing after fire）.When closing fire,
Power supply and all valves are closed, fire-closed plate is covered.During ash discharge, Vibration on Start-up device 17, ash discharge motor 4 open ash discharge valve 11.Row
Ash closes ash discharge valve 11, vibrator 17 and ash discharge motor 4 after terminating.
Embodiment 2：
The straight upper end of airduct 19 is provided with lower cover cap 31, and the top of lower cover cap 31 is provided with upper cap 32, and upper cap 32 is by upper
Block fix bar 26 is flexibly connected with the straight endoporus of airduct 19, and some upper cap positioning bars 30 are towards the axis side of upper cap fix bar 26
To being evenly distributed on the outside disc of upper cap fix bar 26, the groove profile outside cylinder that some upper cap positioning bars 30 are constituted with it is straight
The endoporus of airduct 19 is flexibly connected with one heart, makes upper cap 32 and the concentric activity orientation of straight airduct 19, the upper surface of upper cap 32 is umbrella
Shape structure, i.e. cone or truncated cone-shaped structure, the bottom surface of upper cap 32 is planar structure, and the upper surface of lower cover cap 31 is flat board knot
Structure, the bottom side with upper cap 32 is corresponding.
The plane of several lower cover cap convexes 33 formation is corresponding with the bottom of upper cap 32, lower cover cap convex 33 and upper cap
32 bottom surface contact connection, upper cap 32 forms several straight airduct air-out under the support of lower cover cap convex 33 with lower cover cap 31
Mouth 20, air-out direction now is annular air direction 2, such as shown in figure 12.
Claims (9)
1. a kind of biomass combustion furnace exhaust apparatus, including straight airduct（19）, lower cover cap（27）And upper cap（29）, its feature exists
In,
The straight airduct（19）Upper end mouth of pipe periphery is provided with lower cover cap（27）, lower cover cap（27）Top is provided with upper cap
（29）, upper cap（29）Upper surface be the conical surface or spherical structure, upper cap（29）With lower cover cap（27）Between for air outlet or
Air-out passage, straight airduct（19）Connected with air outlet or air-out passage；
Upper cap（29）Middle lower section and upper cap fix bar（26）Connection, some upper cap positioning bars（30）It is solid along upper cap
Fixed pole（26）Axis direction is evenly distributed on upper cap fix bar（26）On the face of cylinder of outside, some upper cap positioning bars（30）
The groove profile outside cylinder of composition and straight airduct（19）Inner hole wall is flexibly connected and forms several groove profile ventilating ducts, straight airduct（19）It is logical
Several groove profile ventilating ducts are crossed to connect with air outlet or air-out passage.
2. a kind of biomass combustion furnace exhaust apparatus according to claim 1, it is characterised in that
Some upper cap positioning bars（30）The groove profile outside cylinder of composition and straight airduct（19）Endoporus is flexibly connected with one heart, to upper lid
Cap（29）With straight airduct（19）Concentric activity orientation.
3. a kind of biomass combustion furnace exhaust apparatus according to claim 1, it is characterised in that
Lower cover cap（27）It is provided with the block contact surface of several support blocks or support bar, several support blocks or support bar composition
Structure and upper cap（29）The structure correspondence of contact surface, upper cap（29）With lower cover cap under the support of support block or support bar
（27）Form several straight airduct air outlets（20）Or air-out passage.
4. a kind of biomass combustion furnace exhaust apparatus according to claim 1, it is characterised in that
Upper cap（29）Height and outer be diametrically more than lower cover cap（27）Height and it is outer diametrically.
5. a kind of biomass combustion furnace exhaust apparatus according to claim 1, it is characterised in that
Upper cap（29）Provided with inner face structure or bottom surface structure, upper cap（29）Inner face structure be taper or truncated cone-shaped,
Upper cap（29）Bottom surface structure is plane, and the upper end surface structure of lower cover cap is corresponding with the lower surface of upper cap or bottom surface structure.
6. a kind of biomass combustion furnace exhaust apparatus according to claim 1, it is characterised in that
Upper cap（29）For beveled structure, upper cap（29）Inner face structure be taper or truncated cone-shaped, lower cover cap（27）It is upper
End face is truncated cone-shaped structure, lower cover cap（27）Upper end surface structure and upper cap（29）Inner face structure correspondence；Lower cover cap
（27）Upper surface is along the circumferential direction uniformly provided with several lower cover cap convexes（28）, several lower cover cap convexes（28）What is formed connects
Contacting surface and upper cap（29）Inner face correspondence, upper cap（29）In lower cover cap convex（28）Support under and lower cover cap（27）Shape
Air-out direction into air outlet or air-out passage is taper air-out direction（1）.
7. a kind of biomass combustion furnace exhaust apparatus according to claim 1, it is characterised in that
Upper cap（29）For cone or spherical surface body structure, upper cap（29）Bottom surface structure is plane, and lower cover cap is slab construction, under
The upper end surface structure of block is corresponding with the bottom surface structure of upper cap；Lower cover cap upper surface is along the circumferential direction uniformly provided with several
Block convex, the contact surface of several lower cover cap convexes formation is corresponding with the bottom surface of upper cap, and upper cap is in lower cover cap convex
The lower air-out direction with lower cover cap formation air outlet or air-out passage of support is annular air direction（2）.
8. a kind of biomass combustion furnace exhaust apparatus according to claim 1, it is characterised in that
Straight airduct（19）Vertical distribution is in outer annular passage in a ring（21）On, high, short two kinds of adjacent installations；Curved airduct（24）With
Annular air channel（22）Connection；Annular passage point airduct（16）Simultaneously with outer annular passage（21）With annular air channel（22）Even
Connect；Burn wind band（14）Installed in lower furnace portion（3）Lower outside, respectively with burning wind band valve（15）With annular passage point
Airduct（16）Connection.
9. a kind of biomass combustion furnace exhaust apparatus according to claim 8, it is characterised in that
Outer annular passage（21）With annular air channel（22）It is in and feed pipe（9）Concentric position, positioned at ash discharge gear（5）On
Side, feed pipe（9）Lower end be charging aperture；Feed pipe（9）Relative to lower air duct（7）Position same level circumference on radially
It is provided with lower air duct exhaust vent（8）；Lower air duct（7）Outer panel upper end and lower furnace portion（3）Bottom plate connection, lower air duct（7）'s
Lower end and feed pipe（9）Lower end flanges connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400532.3A CN105841182B (en) | 2016-06-08 | 2016-06-08 | A kind of biomass combustion furnace exhaust apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400532.3A CN105841182B (en) | 2016-06-08 | 2016-06-08 | A kind of biomass combustion furnace exhaust apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105841182A CN105841182A (en) | 2016-08-10 |
| CN105841182B true CN105841182B (en) | 2017-10-27 |
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ID=56575932
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610400532.3A Active CN105841182B (en) | 2016-06-08 | 2016-06-08 | A kind of biomass combustion furnace exhaust apparatus |
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| CN (1) | CN105841182B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930967A (en) * | 2018-07-20 | 2018-12-04 | 株洲中车南方环保科技有限公司 | The wind-distributing pipe of Small-sized living garbage incinerator |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58153009A (en) * | 1982-03-04 | 1983-09-10 | Matsushita Electric Ind Co Ltd | Combustion device for solid fuel |
| CN2366414Y (en) * | 1998-10-15 | 2000-03-01 | 包头钢铁学院 | High-efficient air-blower for vertical limekiln |
| CN2407237Y (en) * | 2000-01-14 | 2000-11-22 | 清华大学 | Umbrella shape nozzle button for fluid-bed boiler |
| CN202989080U (en) * | 2012-12-18 | 2013-06-12 | 孙吉章 | Hearth air intake device of biomass gasifier |
| CN204629467U (en) * | 2015-03-26 | 2015-09-09 | 无锡华光锅炉股份有限公司 | cap structure |
| CN205664409U (en) * | 2016-06-08 | 2016-10-26 | 抚州孙氏兄弟实业有限公司 | Biomass combustion furnace air -out device |
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2016
- 2016-06-08 CN CN201610400532.3A patent/CN105841182B/en active Active
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| CN105841182A (en) | 2016-08-10 |
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Effective date of registration: 20170905 Address after: 344000 Jiangxi Province Economic Development Zone Fuzhou City Jinchao Avenue in the middle of Fuzhou Zhong Ling sun brothers Industrial Co. Ltd. Applicant after: Fuzhou Sunshi Xiongdi Industrial Co.,Ltd. Address before: 344000 middle section, Zhong Ling Road, Fuzhou hi tech Development Zone, Jiangxi Applicant before: Sun Jizhang |
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