CN213146543U - Biomass boiler flue gas recirculation system - Google Patents
Biomass boiler flue gas recirculation system Download PDFInfo
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- CN213146543U CN213146543U CN202021954982.5U CN202021954982U CN213146543U CN 213146543 U CN213146543 U CN 213146543U CN 202021954982 U CN202021954982 U CN 202021954982U CN 213146543 U CN213146543 U CN 213146543U
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- Prior art keywords
- barrel
- filter
- hearth
- air
- flue gas
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000002028 Biomass Substances 0.000 title claims abstract description 16
- 239000003546 flue gas Substances 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000000746 purification Methods 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 claims description 30
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- 210000000621 bronchi Anatomy 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 3
- 238000003915 air pollution Methods 0.000 abstract 1
- 239000002956 ash Substances 0.000 description 17
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 229910002090 carbon oxide Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- 229910052815 sulfur oxide Inorganic materials 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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- Chimneys And Flues (AREA)
Abstract
The utility model relates to the boiler purification field, in particular to a biomass boiler flue gas recirculation system, which comprises a hearth, one end of the hearth is provided with a feeder, the other end of the hearth is provided with an exhaust pipe, the bottom of the hearth is provided with an ash falling cavity, one end of the exhaust pipe is provided with a draught fan, one end of the draught fan is connected with a first branch air pipe, one end of the first branch air pipe is provided with an alkaline water purification barrel, the upper end of the alkaline water purification barrel is provided with an air inlet and an air outlet, one end of the air outlet is provided with a filter barrel, a plurality of filter layers which are uniformly distributed are arranged in the filter barrel, one end of the filter barrel is provided with a chimney, the filter barrel is connected with the chimney through a second branch air pipe, the side wall of the second branch air pipe is provided with a flue, the flue is, the flue gas is controlled to circularly burn in the hearth, the economical efficiency is improved, impurities in the flue gas are reduced through the filter barrel, and air pollution is reduced.
Description
Technical Field
The utility model belongs to the boiler purification field refers in particular to a biomass boiler flue gas recirculation system.
Background
Present traditional energy supplies with nervous gradually, and the price constantly rises, uses living beings to replace traditional energy, for more effectual utilization biomass energy, extensively adopts the fashioned combustion technology of living beings granule for biomass fuel replaces coal, diesel oil, natural gas gradually as the fuel of industrial boiler, and the emission after its burning is little to the pollution of environment, and the recoverable recycle of ash content moreover can the coal fired boiler that significantly reduces the pollution of environment.
The existing boiler exceeds the rated working condition at the time of a steam consumption peak, so that the phenomena of high oxygen content and overproof NO2 sometimes occur in environment-friendly online detection, a steam generator is insufficient in biomass pellet fuel combustion, waste is caused to a certain degree, and the flue gas is inconvenient to remove dust and discharge.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a boiler operation economic nature, the investment economizes, and the burning is abundant, practical effectual biomass boiler flue gas recirculation system.
The purpose of the utility model is realized like this: the utility model provides a biomass boiler flue gas recirculation system, includes furnace 1, furnace 1's one end is equipped with feeder 2, furnace 1's the other end is equipped with blast pipe 3, characterized in that: the bottom of furnace 1 is equipped with ash falling cavity 4, the one end of blast pipe 3 is equipped with draught fan 5, the one end of draught fan 5 is connected and is equipped with first bronchus 6, the one end of first bronchus 6 is equipped with buck purification barrel 7, the upper end of buck purification barrel 7 is equipped with air inlet 8 and gas outlet 9, first bronchus 6 is connected with air inlet 8, the one end of gas outlet 9 is equipped with filter vat 10, filter vat 10 top is equipped with bung 11, be equipped with a plurality of evenly distributed's filter layer 12 in the filter vat 10, the one end of filter vat 10 is equipped with chimney 13, connect through being equipped with second bronchus 14 between filter vat 10 and the chimney 13, be equipped with flue 15 on the 14 lateral wall of second bronchus, flue 15 is connected with furnace 1, the one end that flue 15 is close to furnace 1 is equipped with variable frequency air exhauster.
The utility model discloses further set up to: an air pipe 18 connected with the air inlet 8 is arranged in the alkaline water purification barrel 7, an air outlet barrel 19 is arranged at one end of the air pipe 18, a plurality of air outlet holes 20 are formed in the side face of the air outlet barrel 19, and a water filling port 21 is formed in the side face of the alkaline water purification barrel 7.
The utility model discloses further set up to: the filter layer 12 comprises a dust filter screen 22, an activated carbon filter screen 23 and a connecting ring 24, a groove 25 is formed in the side face of the connecting ring 24, the dust filter screen 22 and the activated carbon filter screen 23 are fixed in the groove 25, and the connecting ring 24 is in transition connection with the inner wall of the filter barrel 10.
The utility model discloses further set up to: an air detector 26 is arranged at the joint of the filter barrel 10 and the second branch air pipe 14, and a control valve 27 is arranged between the second branch air pipe 14 and the chimney 13.
The utility model discloses further set up to: a layer of sieve plate 28 is arranged in the ash falling cavity 4, and an ash cleaning opening 16 is arranged on the side surface of the ash falling cavity 4.
The beneficial effects achieved by adopting the technical scheme are as follows:
1. biomass boiler's furnace 1 can produce a large amount of ashes when the burning, and the ash falls in ash falling cavity 4, deletes through sieve 28 and selects the granular material that unburnt totally, continues the burning, increases the economic type, and the ash in ash falling cavity 4 is cleared up through deashing mouth 16, avoids the too many boiler operation that influence of ash.
2. The burned gas flows into an alkaline water purification barrel 7 through an induced draft fan 5, and gas carbon oxides, sulfur oxides, nitrogen oxides and the like which are dissolved in water and are acidic are neutralized with the alkali in the water and then are settled in the alkaline water purification barrel 7.
3. The filtering barrel 10 can filter some impurities in the air, and prevent the impurities from entering the air to cause pollution.
4. The air detector 26 can detect combustible gas components in the gas, if the combustible gas components exceed the standard, the air detector 26 controls the control valve 27 to be closed, the gas returns to the hearth 1 through the flue 15 to be combusted again, and the combustion economy is improved.
5. The variable-frequency exhaust fan 17 can control the wind pressure and the wind volume of gas entering the hearth 1, and prevent the gas with excessive gas from entering the hearth 1, so that the danger is generated due to the overhigh pressure in the hearth 1.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the filtering barrel of the present invention;
FIG. 3 is a schematic structural view of the alkaline water purification barrel of the present invention;
FIG. 4 is a schematic structural view of the hearth of the present invention;
1-hearth; 2-a feeder; 3-an exhaust pipe; 4-ash falling cavity; 5-a draught fan; 6-a first bronchus; 7-alkaline water purification barrel;
8-an air inlet; 9-air outlet; 10-a filter vat; 11-a barrel cover; 12-a filter layer; 13-a chimney; 14-a second bronchus;
15-flue; 16-ash removal port; 17-a variable frequency exhaust fan; 18-trachea; 19-an air outlet cylinder; 20-air outlet holes; 21-a water filling port;
22-dust filter screen; 23-activated carbon filter screen; 24-a connecting ring; 25-a groove; 26-an air detector; 27-a control valve;
28-sieve plate.
Detailed Description
The invention will be further described in the following with reference to the accompanying drawings in which: a biomass boiler flue gas recirculation system comprises a hearth 1, wherein one end of the hearth 1 is provided with a feeder 2, the other end of the hearth 1 is provided with an exhaust pipe 3, the bottom of the hearth 1 is provided with an ash falling cavity 4, a layer of sieve plate 28 is arranged in the ash falling cavity 4, the side surface of the ash falling cavity 4 is provided with an ash cleaning port 16, one end of the exhaust pipe 3 is provided with an induced draft fan 5, one end of the induced draft fan 5 is connected with a first air branch pipe 6, one end of the first air branch pipe 6 is provided with an alkaline water purification barrel 7, the upper end of the alkaline water purification barrel 7 is provided with an air inlet 8 and an air outlet 9, an air pipe 18 connected with the air inlet 8 is arranged in the alkaline water purification barrel 7, one end of the air pipe 18 is provided with an air outlet barrel 19, the side surface of the air outlet barrel 19 is provided with a plurality of air outlet holes 20, a filter barrel 10 is arranged at one end of the air outlet 9, a barrel cover 11 is arranged above the filter barrel 10, a plurality of filter layers 12 which are uniformly distributed are arranged in the filter barrel 10, the filter layer 12 comprises a dust filter screen 22, an activated carbon filter screen 23 and a connecting ring 24, a groove 25 is arranged on the side surface of the connecting ring 24, the dust filter screen 22 and the activated carbon filter screen 23 are fixed in the groove 25, the connecting ring 24 is in transition connection with the inner wall of the filter vat 10, one end of the filter vat 10 is provided with a chimney 13, the filter vat 10 is connected with the chimney 13 through a second branch air pipe 14, a flue 15 is arranged on the side wall of the second branch air pipe 14, the flue 15 is connected with the hearth 1, one end of the flue 15 close to the hearth 1 is provided with a variable frequency exhaust fan 17, an air detector 26 is arranged at the joint of the filter barrel 10 and the second branch air pipe 14, and a control valve 27 is arranged between the second branch air pipe 14 and the chimney 13.
The working mode is that the material is fed into the hearth 1 by the feeding machine 2 to be combusted, gas generated by combustion in the hearth 1 enters the alkaline water purification barrel 7 from the air inlet 8 through the induced draft fan 5, the gas flows out from the air outlet 20 of the air outlet barrel 19 and enters the alkaline water, the gas discharged through the air outlet 20 is more easily fused with the alkaline water to generate reaction, carbon oxides, sulfur oxides, nitrogen oxides and the like dissolved in water and presenting acidity are precipitated in the alkaline water purification barrel 7 after being neutralized and reacted with the alkaline in the water, and the purified gas flows out from the air outlet 9 and enters the filter barrel 10 from the gas inlet on the barrel cover 11 to be filtered.
Be equipped with three-layer filter layer 12 in the filter vat 10, through the effect of three-layer filter layer 12 for filterable effect is better, filter layer 12 includes dust filter screen 22, active carbon filter screen 23 and go-between 24, and dust filter screen 22 can filter the particulate matter of smuggleing secretly in the gas, and some harmful substance that do not react with the buck can be filtered and absorbed to active carbon filter screen 23, go-between 24's side is equipped with recess 25, dust filter screen 22 and active carbon filter screen 23 are fixed in recess 25, go-between 24 and filter vat 10 inner wall transitional coupling, after filter layer 12 long-time work, the filter effect reduces, through opening bung 11 above filter vat 10, takes out clearance, change with filter layer 12, increases filter vat 10's practicality.
The gas detection device is an IR-700 infrared combustible gas detector, the filtered gas is detected by an air detector 26, when the combustible components in the gas detected by the air detector 26 exceed the standard, the air detector 26 closes a control valve 27, and the gas returns to the hearth 1 through the flue 15 to be combusted again, so that the combustion economy is improved.
Gas flows out from a gas outlet on the side surface of the bottom of the filter barrel 7, the air pressure and the air volume of the gas entering the hearth 1 are controlled by the variable-frequency exhaust fan 17, the gas which is too much is prevented from entering the hearth 1, the pressure in the hearth 1 is too high to cause danger, the gas entering the hearth 1 is continuously combusted, the content of O2 in the gas is reduced, meanwhile, the effect of generating NO2 at high temperature in the hearth 1 is also reduced, and the smoke is discharged up to the standard.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (5)
1. The utility model provides a biomass boiler flue gas recirculation system, includes furnace (1), the one end of furnace (1) is equipped with feeder (2), the other end of furnace (1) is equipped with blast pipe (3), characterized in that: the bottom of furnace (1) is equipped with ash falling cavity (4), the one end of blast pipe (3) is equipped with draught fan (5), the one end of draught fan (5) is connected and is equipped with first bronchus (6), the one end of first bronchus (6) is equipped with buck purification barrel (7), the upper end of buck purification barrel (7) is equipped with air inlet (8) and gas outlet (9), first bronchus (6) is connected with air inlet (8), the one end of gas outlet (9) is equipped with filter vat (10), be equipped with bung (11) above filter vat (10), be equipped with a plurality of evenly distributed's filter layer (12) in filter vat (10), the one end of filter vat (10) is equipped with chimney (13), connect through being equipped with second bronchus (14) between filter vat (10) and chimney (13), be equipped with flue (15) on the second bronchus (14) lateral wall, the flue (15) is connected with the hearth (1), and one end of the flue (15) close to the hearth (1) is provided with a variable-frequency exhaust fan (17).
2. The biomass boiler flue gas recirculation system of claim 1, wherein: an air pipe (18) connected with an air inlet (8) is arranged in the alkaline water purification barrel (7), an air outlet barrel (19) is arranged at the bottom of the air pipe (18), a plurality of air outlet holes (20) are formed in the side surface of the air outlet barrel (19), and a water filling port (21) is formed in the side surface of the alkaline water purification barrel (7).
3. The biomass boiler flue gas recirculation system of claim 1, wherein: the filter layer (12) includes dust filter screen (22), active carbon filter screen (23) and go-between (24), the side of go-between (24) is equipped with recess (25), dust filter screen (22) and active carbon filter screen (23) are fixed in recess (25), go-between (24) and lauter tub (10) inner wall transitional coupling.
4. The biomass boiler flue gas recirculation system of claim 1, wherein: an air detector (26) is arranged at the joint of the filter barrel (10) and the second branch air pipe (14), and a control valve (27) is arranged between the second branch air pipe (14) and the chimney (13).
5. The biomass boiler flue gas recirculation system of claim 4, wherein: a layer of sieve plate (28) is arranged in the ash falling cavity (4), and an ash cleaning opening (29) is arranged on the side surface of the ash falling cavity (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021954982.5U CN213146543U (en) | 2020-09-09 | 2020-09-09 | Biomass boiler flue gas recirculation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021954982.5U CN213146543U (en) | 2020-09-09 | 2020-09-09 | Biomass boiler flue gas recirculation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213146543U true CN213146543U (en) | 2021-05-07 |
Family
ID=75710620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021954982.5U Active CN213146543U (en) | 2020-09-09 | 2020-09-09 | Biomass boiler flue gas recirculation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213146543U (en) |
-
2020
- 2020-09-09 CN CN202021954982.5U patent/CN213146543U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 238200 Huaxing logistics channel 1, Anhui fine chemical base, Wujiang Town, he County, Ma'anshan City, Anhui Province Patentee after: MAANSHAN Yongqiang Energy Saving Technology Co.,Ltd. Address before: 317000 No. 69, Yicheng Road, Gucheng street, Linhai City, Taizhou City, Zhejiang Province Patentee before: ZHEJIANG DONGDU ENERGY SAVING TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240510 Address after: Room 202, Unit 1, No. 2 Fenghua Street, Xiangfang District, Harbin City, Heilongjiang Province, 150000 Patentee after: Yuan Zhipeng Country or region after: China Patentee after: Yang Qingkun Address before: 238200 Huaxing logistics channel 1, Anhui fine chemical base, Wujiang Town, he County, Ma'anshan City, Anhui Province Patentee before: MAANSHAN Yongqiang Energy Saving Technology Co.,Ltd. Country or region before: China |