CN213746826U - Novel biomass gasification gas boiler - Google Patents
Novel biomass gasification gas boiler Download PDFInfo
- Publication number
- CN213746826U CN213746826U CN202021137553.9U CN202021137553U CN213746826U CN 213746826 U CN213746826 U CN 213746826U CN 202021137553 U CN202021137553 U CN 202021137553U CN 213746826 U CN213746826 U CN 213746826U
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- CN
- China
- Prior art keywords
- energy saver
- flue
- hearth
- communicated
- biomass gasification
- 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.)
- Expired - Fee Related
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- 239000002028 Biomass Substances 0.000 title claims abstract description 20
- 238000002309 gasification Methods 0.000 title claims abstract description 20
- 239000000428 dust Substances 0.000 claims abstract description 37
- 239000000779 smoke Substances 0.000 claims abstract description 20
- 238000007664 blowing Methods 0.000 claims abstract description 11
- 238000007689 inspection Methods 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000008021 deposition Effects 0.000 abstract description 5
- 230000002265 prevention Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 25
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 22
- 239000003546 flue gas Substances 0.000 description 22
- 238000002485 combustion reaction Methods 0.000 description 10
- 239000004071 soot Substances 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Air Supply (AREA)
- Chimneys And Flues (AREA)
Abstract
The utility model relates to a novel biomass gasification gas boiler, which comprises a hearth, wherein a burning prevention belt is arranged at the front end inside the hearth, the burning prevention belt is made of refractory castable, a plurality of sections of convection tube bundles are arranged on the left side in the hearth, the convection tube bundles are arranged in sequence, an access passage is respectively arranged between each two sections of convection tube bundles along the smoke flowing direction, the left end part of the access passage is respectively provided with an ash removal door, and one side of each section of convection tube bundle is respectively provided with an ash blowing hole; the left side of the front end of the hearth is communicated with a first flue, and an energy saver, a dust removal device and an air preheater are sequentially arranged at the other end of the first flue according to the smoke circulation direction; the top of the energy saver is provided with an inspection door, the bottom of the energy saver is provided with an ash falling hopper, one side of the energy saver is communicated with the first flue, the other side of the energy saver is communicated with the dust removal device through the second flue, and the dust removal device is communicated with the air preheater through an air guide pipeline; the utility model discloses work efficiency is high, and the burning is stable, has the deposition of preventing, the deashing function.
Description
Technical Field
The utility model belongs to the technical field of gas boiler, especially, relate to a novel biomass gasification gas boiler.
Background
The change of gas from coal is one of the strategic decisions for controlling environmental pollution in China, but the implementation of the policy of changing gas from coal causes the accident of gas waste. The cost of clean natural gas is high, which causes the production cost of manufacturers to increase. Under the double pressure of gas shortage and high cost, the biomass gasification gas enters the visual field of people, but the biomass gasification gas has low heat value and unstable combustion; the impurity content is high, and the soot on the heating surface of the boiler can be generated after combustion; the high smoke content leads to low overall efficiency of the boiler and energy waste. At present, a biomass gasification gas boiler with stable combustion, dust deposition prevention, ash removal function and high efficiency is urgently needed, and under the market demand the utility model provides a novel biomass gasification gas boiler.
SUMMERY OF THE UTILITY MODEL
The utility model solves the defects in the prior art, and provides the biomass gasification gas boiler which has the advantages of high efficiency, stable combustion and dust deposition prevention and dust removal functions.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a novel biomass gasification gas boiler comprises a hearth, wherein a burning guarding belt is arranged at the front end inside the hearth, a plurality of sections of convection tube bundles are arranged on the left side in the hearth and arranged in parallel, an overhaul channel is respectively arranged between each two sections of convection tube bundles along the smoke flowing direction, the left end part of the overhaul channel is respectively provided with an ash cleaning door, and one side of each section of convection tube bundle is respectively provided with an ash blowing hole; the left side of the front end of the hearth is communicated with a first flue, and an energy saver, a dust removal device and an air preheater are sequentially arranged at the other end of the first flue according to the smoke circulation direction; one side of the energy saver is communicated with the first flue, the other side of the energy saver is communicated with the dust removal device through the second flue, and the dust removal device is communicated with the air preheater through the air guide pipeline.
Furthermore, an inspection door is arranged at the top of the energy saver, and an ash falling hopper is arranged at the bottom of the energy saver.
Further, the dust removal device is a bag-type dust remover.
Further, the convection bank is provided with at least two sections.
Furthermore, the refractory castable is adopted as the refractory burning zone.
Adopt above-mentioned technical scheme, the utility model has the advantages of as follows:
1. the convection bank in the utility model adopts the in-line arrangement, which increases the cross section area of the smoke flow and reduces the resistance of the smoke flow, thereby reducing the dust accumulation on the surface of the convection bank; because of this characteristic of biomass gasification gas smoke and dust content height, the boiler is after operation a period, the convection bank will be inevitable to appear serious deposition phenomenon, this will influence flue gas circulation and heat transfer, through set up maintenance passageway respectively along flue gas circulation direction in the middle of every two sections convection banks, maintenance passageway left end sets up the deashing door respectively, every section convection bank one side sets up the blowing hole respectively, thereby through maintenance passageway, the deashing is handled to the convection bank to deashing door and blowing hole, in order to avoid descending because of the heat exchange efficiency that the heating area deposition caused.
2. Because the smoke dust content of biomass gasification gas is high, the temperature of smoke gas generated after gas combustion is reduced through heat exchange of a boiler heating surface, if the temperature of the smoke gas is too low, the smoke dust is adhered to the surface of the heating surface, the heat exchange efficiency is greatly reduced, and the ash is difficult to remove, so that the smoke gas at the smoke outlet of the energy saver still has very high temperature, and if the high-temperature smoke gas is directly discharged to a chimney, the low efficiency and the energy waste of the boiler are caused; the utility model discloses set up dust collector before air heater, dust collector will remove dust from the flue gas that the economizer flows out and handle, makes this part flue gas become rethread air heater behind the clean flue gas and carries out the heat transfer, has improved heat exchange efficiency greatly to lower value is fallen to the flue gas temperature, makes the whole efficiency of boiler obtain improving.
3. The utility model discloses a build by laying bricks or stones the fire control area on the anterior inner wall of furnace, the fire control area adopts refractory castable, makes the furnace front portion still maintain higher temperature after blowing out for a short time and blowing out, but the operation back low heat value gas normal combustion of ventilating once more to realize biomass gasification gas boiler's stable combustion.
4. The top and the bottom of the energy saver are respectively provided with an inspection door and an ash falling hopper, and the energy saver can be dedusted and deashed through the inspection door and the ash falling hopper after the boiler operates for a period of time.
Drawings
Fig. 1 is a schematic top view of the present invention;
fig. 2 is a schematic front view of the present invention;
fig. 3 is a schematic structural diagram of the energy saver of the present invention.
In the figure: 1 furnace, 2 combustion protecting belts, 3 convection bank, 4 access passages, 5 ash removing doors, 6 ash blowing holes, 7 first flue, 8 energy-saving devices, 9 dust removing devices, 10 air preheater, 11 inspection doors and 12 ash falling buckets.
Detailed Description
As shown in fig. 1-3, the novel biomass gasification gas boiler of the present invention comprises a furnace 1, a combustion preventing belt 2 is arranged at the front end inside the furnace 1, a plurality of sections of convection banks 3 are arranged on the left side inside the furnace 1, the convection banks 3 are arranged in line, an access passage 4 is respectively arranged between each two sections of convection banks 3 along the smoke flowing direction, the left end of the access passage 4 is respectively provided with an ash removing door 5, and one side of each section of convection bank 3 is respectively provided with an ash blowing hole 6; a first flue 7 is communicated with the left side of the front end of the hearth 1, and an economizer 8, a dust removal device 9 and an air preheater 10 are sequentially arranged at the other end of the first flue 7 according to the smoke circulation direction; one side of the energy saver 8 is communicated with the first flue 7, the other side of the energy saver 8 is communicated with the dust removal device 9 through a second flue, and the dust removal device 9 is communicated with the air preheater 10 through an air guide pipeline. The second chimney and the gas duct are not shown in the figure.
An inspection door 11 is arranged at the top of the energy saver 8, and an ash falling hopper 12 is arranged at the bottom of the energy saver 8.
The dust removing device 9 is a bag-type dust remover.
The convection bank 3 is provided with at least two sections.
The refractory castable is adopted as the refractory burning zone 2.
When the utility model works, the biomass gasification gas enters the hearth 1, and forms high-temperature flue gas with high smoke content after being combusted in the combustion control zone 2, and the high-temperature flue gas enters the convection bank 3 along the rear part of the hearth 1; the convection bank 3 is arranged in line, so that the high-temperature flue gas flow area is increased, and the dust accumulation on the surface of the convection bank 3 can be reduced; the section of the convection bank 3 is provided with an overhaul channel, a soot cleaning door and soot blowing holes, so that real-time soot blowing and periodic soot cleaning of the convection bank 3 can be realized. The flue gas flows out of the convection bank 3 and then enters the economizer 8 through the first flue 7; the energy saver 8 adopts an H-shaped straight finned tube structure, has large clearance, is not beneficial to dust accumulation, and effectively increases the heat exchange area; h-shaped straight finned tubes of the energy saver 8 are aligned up and down to form a channel, so that dust accumulation is reduced; the top and the bottom of the energy saver 8 are respectively provided with an inspection door 11 and an ash falling hopper 12, and the energy saver 8 can be dedusted and deashed through the inspection door 11 and the ash falling hopper 12. The flue gas enters a dust removal device 9 after passing through an energy saver 8, the flue gas treated by the dust removal device 9 is changed into clean flue gas, then the clean flue gas enters an air preheater 10 for heat exchange, and finally the clean flue gas is discharged into a chimney; because the flue gas at the flue gas outlet of the energy saver 8 still has very high temperature, if the high-temperature flue gas is directly discharged to a chimney, the boiler efficiency is low and energy is wasted; through setting up dust collector 9 before air heater 10, dust collector 9 will follow the flue gas that energy-saving appliance 8 flowed out and remove dust and handle, makes this part flue gas become behind the clean flue gas rethread air heater 10 and carry out the heat transfer, has improved heat exchange efficiency greatly to lower value is fallen to the flue gas temperature, makes boiler overall efficiency obtain improving.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.
Claims (5)
1. A novel biomass gasification gas boiler is characterized in that: the device comprises a hearth (1), wherein a burning guarding belt (2) is arranged at the front end inside the hearth (1), a plurality of sections of convection tube bundles (3) are arranged on the left side in the hearth (1), the convection tube bundles (3) are arranged in parallel, an overhaul channel (4) is respectively arranged in the middle of each two sections of convection tube bundles (3) along the smoke flowing direction, the left end part of the overhaul channel (4) is respectively provided with an ash cleaning door (5), and one side of each section of convection tube bundle (3) is respectively provided with an ash blowing hole (6); a first flue (7) is communicated with the left side of the front end of the hearth (1), and an economizer (8), a dust removal device (9) and an air preheater (10) are sequentially arranged at the other end of the first flue (7) according to the smoke circulation direction; one side of the energy saver (8) is communicated with the first flue (7), the other side of the energy saver (8) is communicated with the dust removal device (9) through the second flue, and the dust removal device (9) is communicated with the air preheater (10) through the air guide pipeline.
2. The new biomass gasification gas boiler according to claim 1, characterized in that: an inspection door (11) is arranged at the top of the energy saver (8), and an ash falling hopper (12) is arranged at the bottom of the energy saver (8).
3. The new biomass gasification gas boiler according to claim 1, characterized in that: the dust removal device (9) is a bag-type dust remover.
4. The new biomass gasification gas boiler according to claim 1, characterized in that: the convection bank (3) is provided with at least two sections.
5. The new biomass gasification gas boiler according to claim 1, characterized in that: the refractory castable is adopted as the refractory burning zone (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021137553.9U CN213746826U (en) | 2020-06-18 | 2020-06-18 | Novel biomass gasification gas boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021137553.9U CN213746826U (en) | 2020-06-18 | 2020-06-18 | Novel biomass gasification gas boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213746826U true CN213746826U (en) | 2021-07-20 |
Family
ID=76814319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021137553.9U Expired - Fee Related CN213746826U (en) | 2020-06-18 | 2020-06-18 | Novel biomass gasification gas boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213746826U (en) |
-
2020
- 2020-06-18 CN CN202021137553.9U patent/CN213746826U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210720 |