CN112050183A - Biomass boiler waste heat recovery device - Google Patents
Biomass boiler waste heat recovery device Download PDFInfo
- Publication number
- CN112050183A CN112050183A CN202010914279.XA CN202010914279A CN112050183A CN 112050183 A CN112050183 A CN 112050183A CN 202010914279 A CN202010914279 A CN 202010914279A CN 112050183 A CN112050183 A CN 112050183A
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- China
- Prior art keywords
- heater
- flue
- waste heat
- recovery device
- biomass boiler
- 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
- 239000002028 Biomass Substances 0.000 title claims abstract description 37
- 239000002918 waste heat Substances 0.000 title claims abstract description 26
- 238000011084 recovery Methods 0.000 title claims abstract description 23
- 239000000446 fuel Substances 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000013461 design Methods 0.000 abstract description 6
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003546 flue gas Substances 0.000 abstract description 4
- 108091006146 Channels Proteins 0.000 description 8
- 102000010637 Aquaporins Human genes 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 108010063290 Aquaporins Proteins 0.000 description 1
- 235000017060 Arachis glabrata Nutrition 0.000 description 1
- 244000105624 Arachis hypogaea Species 0.000 description 1
- 235000010777 Arachis hypogaea Nutrition 0.000 description 1
- 235000018262 Arachis monticola Nutrition 0.000 description 1
- 235000016068 Berberis vulgaris Nutrition 0.000 description 1
- 241000335053 Beta vulgaris Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000353135 Psenopsis anomala Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 235000020232 peanut Nutrition 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B15/00—Water-tube boilers of horizontal type, i.e. the water-tube sets being arranged horizontally
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- 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
- F23L15/00—Heating of air supplied for combustion
-
- 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
Abstract
The invention discloses a waste heat recovery device of a biomass boiler, and relates to the technical field of biomass boilers. The biomass boiler waste heat recovery device comprises a hearth, a flue, a fuel channel, a fuel heater, an air channel, an air heater, a water channel, a water heater and a secondary water heater, wherein the top of the hearth is connected with the flue, and the fuel heater, the air heater and the water heater are sequentially arranged on the flue from top to bottom. According to the biomass boiler waste heat recovery device, the heaters are arranged on the surfaces in the flue, so that the waste heat of the flue gas in the flue is fully utilized to heat a medium, the heat efficiency is effectively improved, and the design size of the biomass boiler is reduced; a secondary water heater is arranged in the hearth to further absorb heat in the hearth, so that the central combustion speed of the hearth is accelerated.
Description
Technical Field
The invention relates to the technical field of biomass boilers, in particular to a biomass boiler waste heat recovery device.
Background
About 50 industrial boilers in China are available, the annual coal consumption is about 1/3 of the total national coal consumption, the environmental pollution caused by coal-fired industrial boilers is very serious, and a large number of industrial boilers must be replaced by clean energy. According to the biomass resource conditions of China, the agriculture and forestry residues are used as boiler fuel, so that the boiler has the characteristics of environmental friendliness and regeneration, the biomass combustion technology of an industrial boiler is researched, the biomass fuel boiler is developed, and the boiler has positive significance for saving conventional energy, optimizing the energy structure of China and reducing environmental pollution.
Due to the limitation of electric power and natural gas supply and gas pipelines, coal-fired boilers in China cannot be completely changed into electric boilers or gas boilers, and biomass boilers are low in price and running cost, so that the biomass boilers are easy to accept and popularize by users, and the blank is filled. The biomass energy granular fuel is prepared by crushing, mixing, extruding, drying and other processes of all waste crops such as straws, rice straws, firewood materials, wood chips, peanut shells, melon seed shells, beet pulp, barks and the like, and finally preparing the granular fuel.
And traditional biomass boiler does not have the waste heat recovery device of modern large-scale boiler, therefore biomass boiler's specific volume (the ratio of power and equipment volume) is great relatively in the design, and the biomass boiler of design like this occupation space is big, the consumptive material is high, and the thermal efficiency also does not improve effectively simultaneously.
Therefore, the applicant inherits the experience of abundant design development and actual manufacturing of the related industry for many years, researches and improves the existing structure and deficiency, and provides a biomass boiler waste heat recovery device so as to achieve the aim of higher practical value.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a biomass boiler waste heat recovery device, which solves the problems of large volume and low heat efficiency of the traditional biomass boiler.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a biomass boiler waste heat recovery device, includes furnace, flue, fuel passageway, fuel heater, air duct, air heater, water channel, water heater and second grade water heater, the furnace top is connected with the flue, from last fuel heater, air heater and the water heater of having set gradually under to on the flue.
Preferably, the fuel heater, the air heater, the water heater and the secondary water heater are all surface heaters, the outer part of each surface heater is the inner part of the flue, and the inner part of each surface heater is communicated with a medium.
Preferably, the fuel passage penetrates the flue and is provided with a fuel heater at the joint portion.
Preferably, the air passage penetrates the flue and is provided with an air heater at the combining portion.
Preferably, the water passage penetrates the flue and is provided with a water heater at the combining portion.
Preferably, the ends of the fuel channels are connected to the inside of the furnace.
Preferably, the ends of the air channels are connected to the interior of the furnace.
Preferably, the water channel penetrates through the flue, penetrates through the hearth from the left side of the hearth and is provided with a secondary water heater at the combined part.
(III) advantageous effects
The invention provides a waste heat recovery device of a biomass boiler. The method has the following beneficial effects:
(1) this biomass boiler waste heat recovery device is the heater through set up a plurality of surfaces in the flue, and the waste heat of flue gas heats the medium in the full play flue, has effectively improved the thermal efficiency and has reduced biomass boiler's design size simultaneously.
(2) This biomass boiler waste heat recovery device further absorbs heat in the furnace through set up second grade water heater in furnace for furnace central authorities burning speed.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
In the figure: 1. a fuel passage; 2. a fuel heater; 3. an air passage; 4. an air heater; 5. a water passage; 6. a water heater; 7. a secondary water heater.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a biomass boiler waste heat recovery device comprises a hearth, a flue, a fuel channel 1, a fuel heater 2, an air channel 3, an air heater 4, a water channel 5, a water heater 6 and a secondary water heater 7, wherein the top of the hearth is connected with the flue, the flue is sequentially provided with the fuel heater 2, the air heater 4 and the water heater 6 from top to bottom, the fuel heater 2, the air heater 4, the water heater 6 and the secondary water heater 7 are surface heaters, the outer part of the surface heaters is the inner part of the flue, a medium is communicated in the heaters, the fuel channel 1 penetrates through the flue and is provided with the fuel heater 2 at a combined part, the air channel 3 penetrates through the flue and is provided with the air heater 4 at the combined part, the water channel 6 penetrates through the flue and is provided with the water heater 6 at the combined part, the tail end of the fuel channel 1 is connected to the inner, the water channel 6 penetrates through the flue, penetrates through the hearth from the left side of the hearth and is provided with a secondary water heater 7 at the combined part.
When the device is used, fuel is combusted in the hearth, and the combusted flue gas flows to the flue. The fuel is heated by the fuel heater 2 in the fuel passage 1, removing moisture in the fuel and raising the temperature of the fuel, making the fuel more combustible; the air is heated by the air heater 4 in the air channel 3, so that the temperature of the air is improved, the heat required to be absorbed before combustion in the hearth is reduced, and the combustion efficiency is further improved; the water is heated by the water heater 6 in the water channel 5 and then enters the secondary water heater 7 to further increase the temperature of the water, so that the water is easier to reach the boiling point in the evaporator and then is evaporated,
in conclusion, the biomass boiler waste heat recovery device has the advantages that the heaters are arranged on the surfaces in the flue, so that the waste heat of the flue gas in the flue is fully utilized to heat the medium, the heat efficiency is effectively improved, and the design size of the biomass boiler is reduced; a secondary water heater is arranged in the hearth to further absorb heat in the hearth, so that the central combustion speed of the hearth is accelerated.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a biomass boiler waste heat recovery device, includes furnace, flue, fuel passageway (1), fuel heater (2), air duct (3), air heater (4), water passageway (5), water heater (6) and second grade water heater (7), the furnace top is connected with the flue, its characterized in that: the flue is sequentially provided with a fuel heater (2), an air heater (4) and a water heater (6) from top to bottom.
2. The waste heat recovery device of the biomass boiler as claimed in claim 1, wherein: the fuel heater (2), the air heater (4), the water heater (6) and the secondary water heater (7) are all surface heaters, the outer part of the surface heaters is the inner part of a flue, and a medium is introduced into the heaters.
3. The waste heat recovery device of the biomass boiler as claimed in claim 2, wherein: the fuel channel (1) penetrates through the flue and is provided with a fuel heater (2) at the joint part.
4. The waste heat recovery device of the biomass boiler as claimed in claim 3, wherein: the air channel (3) penetrates through the flue and is provided with an air heater (4) at the combining part.
5. The waste heat recovery device of the biomass boiler as claimed in claim 4, wherein: the water channel (6) penetrates through the flue and is provided with a water heater (6) at the combination part.
6. The waste heat recovery device of the biomass boiler as claimed in claim 3, wherein: the ends of the fuel channels (1) are connected to the inside of the furnace.
7. The waste heat recovery device of the biomass boiler as claimed in claim 4, wherein: the ends of the air channels (3) are connected to the interior of the furnace.
8. The waste heat recovery device of the biomass boiler as claimed in claim 5, wherein: and the water channel (6) penetrates through the flue and then penetrates through the hearth from the left side of the hearth, and a secondary water heater (7) is arranged at the combined part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010914279.XA CN112050183A (en) | 2020-09-03 | 2020-09-03 | Biomass boiler waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010914279.XA CN112050183A (en) | 2020-09-03 | 2020-09-03 | Biomass boiler waste heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112050183A true CN112050183A (en) | 2020-12-08 |
Family
ID=73607287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010914279.XA Pending CN112050183A (en) | 2020-09-03 | 2020-09-03 | Biomass boiler waste heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112050183A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203784910U (en) * | 2014-04-16 | 2014-08-20 | 安徽理工大学 | Energy-saving biomass boiler |
| CN204943440U (en) * | 2015-09-16 | 2016-01-06 | 武汉东晟捷能科技有限公司 | A kind of high-efficiency energy-saving biomass boiler |
| CN206944463U (en) * | 2017-06-12 | 2018-01-30 | 西安航空学院 | Environment-friendly and energy-efficient biomass boiler |
-
2020
- 2020-09-03 CN CN202010914279.XA patent/CN112050183A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203784910U (en) * | 2014-04-16 | 2014-08-20 | 安徽理工大学 | Energy-saving biomass boiler |
| CN204943440U (en) * | 2015-09-16 | 2016-01-06 | 武汉东晟捷能科技有限公司 | A kind of high-efficiency energy-saving biomass boiler |
| CN206944463U (en) * | 2017-06-12 | 2018-01-30 | 西安航空学院 | Environment-friendly and energy-efficient biomass boiler |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201208 |
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| RJ01 | Rejection of invention patent application after publication |