CN108534134A - The low nitrogen boiler special for biomass of back-firing efficient - Google Patents
The low nitrogen boiler special for biomass of back-firing efficient Download PDFInfo
- Publication number
- CN108534134A CN108534134A CN201810588524.5A CN201810588524A CN108534134A CN 108534134 A CN108534134 A CN 108534134A CN 201810588524 A CN201810588524 A CN 201810588524A CN 108534134 A CN108534134 A CN 108534134A
- Authority
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- China
- Prior art keywords
- flue
- furnace body
- combustion chamber
- exhaust pipe
- smoke exhaust
- Prior art date
- 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.)
- Pending
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000002028 Biomass Substances 0.000 title claims abstract description 15
- 238000010304 firing Methods 0.000 title claims abstract description 11
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 11
- 239000000779 smoke Substances 0.000 claims abstract description 42
- 238000002485 combustion reaction Methods 0.000 claims abstract description 26
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000011084 recovery Methods 0.000 claims description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 10
- 239000003546 flue gas Substances 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000001172 regenerating effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000609240 Ambelania acida Species 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000010905 bagasse Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/06—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for completing combustion
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chimneys And Flues (AREA)
Abstract
The present invention relates to the low nitrogen boiler special for biomass of back-firing efficient, belong to boiler technology field.Present invention mainly solves the technical problems that thermal loss is big existing for existing boiler, utilization efficiency of heat energy is low.The technical scheme is that：The low nitrogen boiler special for biomass of back-firing efficient, including furnace body, feed bin, helical feeder, pressure fan, flue, air-introduced machine and smoke exhaust pipe, wherein：The lower portion of furnace body is equipped with combustion chamber, and sidewall of combustion chamber is equipped with igniter, and the inboard wall of furnace body is equipped with water-cooling wall；The feed bin is located above furnace body and is connected by the feed inlet of helical feeder and top of combustion chamber；The pressure fan is located at outside furnace body side, and the pressure fan passes through ajutage and combustion chamber；The flue is located at the other side in furnace body vertically, and the air-introduced machine is located above flue, and the smoke exhaust pipe is located at outside furnace body vertically close to flue side.The present invention has many advantages, such as that simple in structure, heat exchange efficiency is high, safe and practical, reasonable in design.
Description
Technical field
The invention belongs to boiler technology fields, the more particularly to low nitrogen boiler special for biomass of back-firing efficient.
Background technology
As society is to the growing of energy demand, the fossil fuel as main energy sources source is reduced promptly,
Regenerative resource demand also increasingly increases, and biomass is a kind of ideal regenerative resource, it is derived from a wealth of sources, and has every year a large amount of
Industry, agricultural and forest waste output, as the corncob of China's either northern area, stalk or southern rice
The renewable resources such as shell, bagasse, cocoanut shell are very abundant, are replaced with it or part replaces fire coal, can brought for enterprise abundant
Economy return, on the other hand, biomass energy are a kind of clean reproducible energies, and CO2 emission is utilized close to zero
Biomass energy all plays an important role environmental protection, improvement ecology, raising life of farmers level etc..
But biomass boiler combustion chamber in the prior art or separated with furnace body, or be arranged in boiler side, it is unfavorable for
The efficiency of boiler is converted, and that there are thermal loss is big, utilization efficiency of heat energy is low, that accumulated plugging phenomenon etc. easily occurs is scarce for dust after burning
Point.
Invention content
It is an object of the invention to overcome the prior art, provide back-firing efficient low nitrogen boiler special for biomass,
The technical problem that thermal loss is big, utilization efficiency of heat energy is low is solved existing for existing boiler.
The present invention is achieved by the following technical solutions：
The low nitrogen boiler special for biomass of back-firing efficient, including furnace body, feed bin, helical feeder, pressure fan, flue, draw
Wind turbine and smoke exhaust pipe, wherein：
The lower portion of furnace body is equipped with combustion chamber, and top of combustion chamber is equipped with feed inlet, and sidewall of combustion chamber is equipped with igniter, described
Inboard wall of furnace body is equipped with water-cooling wall；
The feed bin is located above furnace body and is connected by the feed inlet of helical feeder and top of combustion chamber；
The pressure fan is located at outside furnace body side, and the pressure fan passes through ajutage and combustion chamber；
The flue is located at the other side in furnace body vertically, and the air-introduced machine is located above flue, and the smoke exhaust pipe is vertical
It is located at outside furnace body close to flue side, the smoke evacuation bottom of the tube is equipped with flue gas heat recovery mouth, and the smoke exhaust pipe middle part is equipped with row
Smoke pipe smoke inlet, the smoke exhaust pipe top are equipped with smoke exhaust pipe outlet flue；The stack base and combustion chamber, the flue top
Portion is connect with air-introduced machine smoke inlet；The outlet flue of the smoke exhaust pipe smoke inlet and air-introduced machine connects, and the flue gas heat recovery mouth is logical
It crosses off-gas recovery pipe to connect with pressure fan air inlet, the smoke exhaust pipe outlet flue and atmosphere；
Horizontal in the flue to be equipped with several recovery tubes, the recovery tubes both ends are connected to water-cooling wall inner cavity.
Further, volume control damper is housed on the ajutage.
Further, the feed bin side wall is equipped with feed bin observation panel.
The combustion chamber of the present invention is located in furnace body, inboard wall of furnace body is equipped with water-cooling wall, flue is located at furnace body side, flue vertically
Interior several recovery tubes and the smoke evacuation bottom of the tube of being equipped with can realize multiple heat exchange, heat is made to reach equipped with flue gas heat recovery mouth
Release to the limit is reduced and is lost caused by the outside conduct radiation of flame heat regulating.Compared with prior art, the present invention has
Have the advantages that simple in structure, heat exchange efficiency is high, safe and practical, reasonable in design.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples.
As shown in Figure 1, the low nitrogen boiler special for biomass of back-firing efficient in the present embodiment, including furnace body 1, feed bin 2, spiral shell
Glassware 3, pressure fan 4, flue 5, air-introduced machine 6 and smoke exhaust pipe 7 are screwed on, wherein：
1 lower part of the furnace body is equipped with combustion chamber 8, and 8 top of combustion chamber is equipped with feed inlet, and 8 side wall of combustion chamber is equipped with igniter
9,1 inner wall of the furnace body is equipped with water-cooling wall 10；
The feed bin 2 is located at 1 top of furnace body and is connect with the feed inlet at 8 top of combustion chamber by helical feeder 3；
The pressure fan 4 is located at outside 1 side of furnace body, and the pressure fan 4 is connected to by ajutage 11 with combustion chamber 8；
The flue 5 is located at the other side in furnace body 1 vertically, and the air-introduced machine 6 is located at 5 top of flue, the smoke exhaust pipe 7
Close to 5 side of flue, 7 bottom of the smoke exhaust pipe is equipped with flue gas heat recovery mouth 12, the smoke exhaust pipe 7 for vertical 1 outside of furnace body that is located at
Middle part is equipped with smoke exhaust pipe smoke inlet 13, and 7 top of the smoke exhaust pipe is equipped with smoke exhaust pipe outlet flue 14；5 bottom of the flue and burning
Room 8 is connected to, and 5 top of the flue is connect with 6 smoke inlet of air-introduced machine；The outlet flue of the smoke exhaust pipe smoke inlet 13 and air-introduced machine 6
Connection, the flue gas heat recovery mouth 12 are connect by off-gas recovery pipe 12 with 4 air inlet of pressure fan, the smoke exhaust pipe outlet flue 14
With atmosphere；
It is horizontal in the flue 5 to be equipped with several recovery tubes 15,15 both ends of the recovery tubes with 10 inner cavity of water-cooling wall
Connection.
Further, volume control damper is housed on the ajutage 11.
Further, 2 side wall of the feed bin is equipped with feed bin observation panel.
The course of work of the present invention：
In use, the fuel in feed bin 2 is sent into combustion chamber 8 from feed inlet by helical feeder 3, igniting is then opened
Device 9 is lighted a fire, while starting pressure fan 4 and air-introduced machine 6；It can be to the cycle in the water-cooling wall 10 of 8 surrounding of combustion chamber after burning
Water is heated；Flue gas after burning, which can enter, to be located at vertically in the flue 5 of the other side in furnace body 1, and passes through flue 5 and flue
Several recovery tubes 12 in 5 heat the recirculated water in water-cooling wall 8；Flue gas is introduced from after the outflow of flue 5 by air-introduced machine 6
In smoke exhaust pipe 7, the flue gas part in smoke exhaust pipe 7 is discharged by the smoke exhaust pipe outlet flue 14 at top, cigarette of the another part from bottom
Gas recuperation of heat mouth 12 enters off-gas recovery pipe 12, is then fed again into combustion chamber 8 by pressure fan 4 again, realizes the multiple of heat
It recycles.
The spirit or essence that the present invention can be embodied in a variety of forms without departing from invention, it should therefore be appreciated that on
It states embodiment and is not limited to details above-mentioned, and should widely be explained in claim limited range, therefore fall into right
It is required that or the variation in its equivalent scope and remodeling should be covered by the following claims.
Claims (3)
1. the low nitrogen boiler special for biomass of back-firing efficient, including furnace body (1), feed bin (2), helical feeder (3), pressure fan
(4), flue (5), air-introduced machine (6) and smoke exhaust pipe (7), it is characterised in that：
Furnace body (1) lower part is equipped with combustion chamber (8), and feed inlet is equipped at the top of combustion chamber (8), and combustion chamber (8) side wall is equipped with point
Firearm (9), furnace body (1) inner wall are equipped with water-cooling wall (10)；
The feed bin (2) is located above furnace body (1) and is connect with the feed inlet at the top of combustion chamber (8) by helical feeder (3)；
The pressure fan (4) is located at outside furnace body (1) side, and the pressure fan (4) is connected by ajutage (11) and combustion chamber (8)
It is logical；
The flue (5) is located at the other side in furnace body (1) vertically, and the air-introduced machine (6) is located above flue (5), the row
Smoke pipe (7) is located at external close flue (5) side of furnace body (1) vertically, and smoke exhaust pipe (7) bottom is equipped with flue gas heat recovery mouth
(12), it is equipped with smoke exhaust pipe smoke inlet (13) in the middle part of the smoke exhaust pipe (7), smoke exhaust pipe outlet flue is equipped at the top of the smoke exhaust pipe (7)
(14)；Flue (5) bottom is connected to combustion chamber (8), is connect with air-introduced machine (6) smoke inlet at the top of the flue (5)；It is described
Smoke exhaust pipe smoke inlet (13) is connect with the outlet flue of air-introduced machine (6), and the flue gas heat recovery mouth (12) passes through off-gas recovery pipe
(12) it is connect with pressure fan (4) air inlet, the smoke exhaust pipe outlet flue (14) and atmosphere；
It is horizontal in the flue (5) to be equipped with several recovery tubes (15), recovery tubes (15) both ends with water-cooling wall (10)
Inner cavity is connected to.
2. the low nitrogen boiler special for biomass of back-firing efficient according to claim 1, it is characterised in that：The ajutage
(11) volume control damper is housed on.
3. the low nitrogen boiler special for biomass of back-firing efficient according to claim 1, it is characterised in that：The feed bin (2)
Side wall is equipped with feed bin observation panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810588524.5A CN108534134A (en) | 2018-06-08 | 2018-06-08 | The low nitrogen boiler special for biomass of back-firing efficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810588524.5A CN108534134A (en) | 2018-06-08 | 2018-06-08 | The low nitrogen boiler special for biomass of back-firing efficient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108534134A true CN108534134A (en) | 2018-09-14 |
Family
ID=63470748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810588524.5A Pending CN108534134A (en) | 2018-06-08 | 2018-06-08 | The low nitrogen boiler special for biomass of back-firing efficient |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108534134A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200352792Y1 (en) * | 2004-03-22 | 2004-06-07 | 이규일 | A trash boiler waste gas purifier |
| KR100704176B1 (en) * | 2005-11-04 | 2007-04-06 | 이규일 | An incineration boiler |
| WO2009015575A1 (en) * | 2007-07-27 | 2009-02-05 | Zefeng Chen | Double-loop double-pyrogenation incinerator for garbage harmless treatment and its usage method |
| CN202675270U (en) * | 2012-06-06 | 2013-01-16 | 扬州斯大锅炉有限公司 | Smoke recovering boiler |
| CN104696949A (en) * | 2015-03-09 | 2015-06-10 | 李毅强 | Two-stage process denitrification method of coal fired boiler |
| CN206656346U (en) * | 2016-10-21 | 2017-11-21 | 华电龙口发电股份有限公司 | A kind of boiler combustion system for possessing smoke backflow function |
| CN208670995U (en) * | 2018-06-08 | 2019-03-29 | 山西桐鑫宇环保设备有限公司 | The low nitrogen boiler special for biomass of back-firing efficient |
-
2018
- 2018-06-08 CN CN201810588524.5A patent/CN108534134A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200352792Y1 (en) * | 2004-03-22 | 2004-06-07 | 이규일 | A trash boiler waste gas purifier |
| KR100704176B1 (en) * | 2005-11-04 | 2007-04-06 | 이규일 | An incineration boiler |
| WO2009015575A1 (en) * | 2007-07-27 | 2009-02-05 | Zefeng Chen | Double-loop double-pyrogenation incinerator for garbage harmless treatment and its usage method |
| CN202675270U (en) * | 2012-06-06 | 2013-01-16 | 扬州斯大锅炉有限公司 | Smoke recovering boiler |
| CN104696949A (en) * | 2015-03-09 | 2015-06-10 | 李毅强 | Two-stage process denitrification method of coal fired boiler |
| CN206656346U (en) * | 2016-10-21 | 2017-11-21 | 华电龙口发电股份有限公司 | A kind of boiler combustion system for possessing smoke backflow function |
| CN208670995U (en) * | 2018-06-08 | 2019-03-29 | 山西桐鑫宇环保设备有限公司 | The low nitrogen boiler special for biomass of back-firing efficient |
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