CN105571337B - Using the energy-saving industrial kiln of biomass gasification fired electricity generation system - Google Patents
Using the energy-saving industrial kiln of biomass gasification fired electricity generation system Download PDFInfo
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- CN105571337B CN105571337B CN201610058314.6A CN201610058314A CN105571337B CN 105571337 B CN105571337 B CN 105571337B CN 201610058314 A CN201610058314 A CN 201610058314A CN 105571337 B CN105571337 B CN 105571337B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/006—Systems for reclaiming waste heat using a boiler
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The invention discloses a kind of energy-saving industrial kilns using biomass gasification fired electricity generation system, it include: kiln furnace body, at least four anti-backfire nozzles, flue, the First Heat Exchanger and the second heat exchanger, turbine generator and biomass gasifying furnace being sequentially arranged along the flow of flue gas direction of flue, biomass gasifying furnace has steam entry, hot air inlet and biological fuel gas outlet；First Heat Exchanger has the first flue gas flow path and first fluid flow path, and the outlet of first fluid flow path is successively connected with the steam entry of turbine generator and biomass gasifying furnace by water vapour pipeline；Second heat exchanger has the second flue gas flow path and second fluid flow path, and the outlet of second fluid flow path is connected by hot-air pipeline with the hot air inlet of biomass gasifying furnace；The biological fuel gas outlet of biomass gasifying furnace is connected at least four anti-backfire nozzles by biomass fuel gas pipeline with by combustion heat release in biomass fuel gas jet to kiln furnace body.
Description
Technical field
The present invention relates to a kind of Industrial Stoves more particularly to a kind of Industrial Stoves of biomass burning gas.
Background technique
In face of increasingly serious environmental problem and energy crisis, energy-saving and emission-reduction are all being advocated in the whole world energetically.It is especially right
For all more serious Industrial Stoves related industry of energy consumption and pollution, how energy-saving and emission-reduction transformation is carried out, have become ability
Field technique personnel have to the factor considered when designing such equipment.
By taking Industrial Stoves as an example, a large amount of fuel combustions is not only needed to provide thermal energy when in use, and these fuel exist
A large amount of toxic and harmful gas is discharged in burning Shi Huixiang air, causes Air seriously polluted；In addition, industrial furnace smoke exports
The flue-gas temperature at place would generally reach 900 degrees centigrades, if these high-temperature flue gas are directly discharged in environment, not only can
Cause energy waste that can also cause a degree of destruction to environment.
A kind of biological fuel gas industry kiln with flue gas waste heat-recovering is disclosed such as Chinese patent 201420329574.9
Furnace combustion system comprising plate heat exchanger, kiln and burner, plate heat exchanger are internally provided with exhaust gases passes and combustion-supporting
Air duct, one end of exhaust gases passes and kiln inside are connected to, and the other end of exhaust gases passes is in communication with the outside, combustion air channel
One end be connected to the inside of burner, the other end in combustion air channel is in communication with the outside, and biology is also connected on burner
Matter gasification burning channel.However, the biological fuel gas Industrial Stoves combustion system of the patent disclosure does not disclose or suggests biology
The source of matter gasification burning, the waste heat that flue gas is discharged also are not utilized completely.
For another example Chinese patent 201420819512.6 disclose a kind of biomass gasification fired confession for Industrial Stoves
Hot systems, comprising: kiln is equipped with exhanst gas outlet and combustion inlet；Pyrolysis apparatus is equipped with heating channel, pyrolysis gas outlet and material
Outlet, the exhanst gas outlet of heating feeder connection connection kiln；The gasification furnace in inclusive reaction area, pyrolysis gas outlet are passed to by pipeline
Reaction zone, the material inlet of gasification furnace connect the material outlet of pyrolysis apparatus by pipeline, and the gas outlet of gasification furnace passes to kiln
Combustion inlet；And heat exchanger, heat exchanger includes interconnected high temperature inlet, low-temperature outlet, and is interconnected low
Warm entrance, hot outlet, high temperature inlet connect the gas vent of kiln, and hot outlet is passed in reaction zone by pipeline.However,
Gasification furnace in the biomass gasification fired heating system of the patent disclosure also needs to provide material source using pyrolysis apparatus, and
The biomass gasification fired heating system does not also disclose or suggests how to generate electricity using the flue gas of kiln.
Therefore it provides one kind, which can make full use of fume afterheat, can generate electricity but also provide gasifying agent for biomass gasifying furnace
The energy-saving industrial kiln in source becomes urgent problem in the industry.
Summary of the invention
The object of the present invention is to provide a kind of energy-saving industrial kilns using biomass gasification fired electricity generation system, can
The waste heat for sufficiently recycling Industrial Stoves high-temperature flue gas generates electricity, and can give and provide gasifying agent for biomass gasifying furnace
Source is Industrial Stoves heating using biomass gasifying furnace, realizes the recycling of energy.
To achieve the goals above, the present invention provides a kind of energy-saving industrials using biomass gasification fired electricity generation system
Kiln, comprising: kiln furnace body, kiln furnace body is interior to be equipped with burner hearth；At least four anti-backfire nozzles, between at least four anti-backfire nozzles
Every on the bottom end furnace wall that kiln furnace body is arranged in, for combustion gas and combustion-supporting gas to be ejected into furnace chamber inner combustion heat release；And cigarette
Feed channel, flue are connected on the side furnace wall of kiln furnace body so that the flue gas generated in burner hearth is expelled to chimney；Wherein,
Energy-saving industrial kiln using biomass gasification fired electricity generation system further includes biomass gasification fired electricity generation system and along flue gas
What the flow of flue gas direction of pipeline was sequentially arranged is used to that the flue gas in flue to be made to carry out heat exchange respectively from different fluids
First Heat Exchanger and the second heat exchanger；Its biomass gasification fired electricity generation system includes turbine generator and gasification of biomass
Furnace, biomass gasifying furnace have steam entry, hot air inlet and biological fuel gas outlet；First Heat Exchanger has first
Flue gas flow path and first fluid flow path, the outlet of first fluid flow path by water vapour pipeline successively with turbine generator and life
The steam entry of gasification substance furnace is connected；Second heat exchanger has the second flue gas flow path and second fluid flow path, second
The outlet of body flow path is connected by hot-air pipeline with the hot air inlet of biomass gasifying furnace；The biology of biomass gasifying furnace
Matter gas outlet is connected at least four anti-backfire nozzles by biomass fuel gas pipeline with by biomass fuel gas jet to kiln
Combustion heat release in furnace body.
Preferably, hot-air pipeline also branch has hot-air to be in charge of line, and hot-air is in charge of line and biomass fuel gas pipeline phase
It connects and is equipped with the first mixer in junction shape will be mixed with biological fuel gas from the part hot-air of the second heat exchanger
At premix gas.
Selectively, hot-air be in charge of line by the 20~40% of hot-air total amount be delivered to the first mixer with biomass
Combustion gas mixing forms premix gas, is preferably delivered to the first mixer for the 30% of hot-air total amount.
Preferably, the downstream connection on flue in the outlet of the second flue gas flow path of the second heat exchanger has the first cigarette
Gas reflux pipeline and the second smoke backflow pipeline, wherein the first smoke backflow pipeline is connected at least four anti-backfire nozzles
With partial fume is back at least four anti-backfire nozzles be used for it is combustion-supporting；On second smoke backflow pipeline and hot-air pipeline
The second mixer being arranged is connected so that partial fume to be back in the second mixer and is used for and the heat from the second heat exchanger
Biomass gasifying furnace is delivered to as gasifying agent after air mixing.
Selectively, the first smoke backflow pipeline flows back at least four anti-backfire nozzles for the 10~20% of amount of flue gas emission
For combustion-supporting, at least four anti-backfire nozzles preferably are flowed back by the 15% of amount of flue gas emission.
Selectively, the second smoke backflow pipeline by the 10~20% of amount of flue gas emission flow back into the second mixer be used for come
It is mixed from the hot-air of the second heat exchanger, preferably flows back into the second mixer for the 15% of amount of flue gas emission.
Preferably, each anti-backfire nozzle at least four anti-backfire nozzles includes nozzle body, is set to nozzle body
The jet port of one end, the mixing chamber inside nozzle body and set on nozzle body the other end and be connected to mixing chamber
Air duct distributor, wherein air duct distributor includes the center air duct, gaseous mixture air duct and flue gas wind being arranged concentrically from inside to outside
Road, gaseous mixture air duct are connected with biomass fuel gas pipeline, center air duct and flue gas air duct respectively with the first smoke backflow pipeline
It is connected.
Selectively, at least four anti-backfire nozzles can be five or five or more.
Preferably, each anti-backfire nozzle further comprises the first eddy flow that neighbouring mixing chamber is set in gaseous mixture air duct
Blower and the second rotational flow fan being set in flue gas air duct.
Preferably, the first mixer or the second mixer include blender body, set on the first of blender body one end
Class gas access, the second class gas access set on blender body side, the gas mixing chamber inside blender body,
And the mixed gas outlet of the other end set on blender body, wherein neighbouring mixed gas outlet is equipped with rotation in gas mixing chamber
Rotary impeller.
Preferably, biomass gasification fired electricity generation system further includes screw rod power generator, is flowed out from turbine generator
Part water vapour via pipeline be delivered to screw rod power generator for generate electricity be changed into cold water after, be delivered to first using pipeline
The entrance of the first fluid flow path of heat exchanger.
Selectively, 20~40% from turbine generator outflow water vapour total amount are delivered to screw rod power generation via pipeline
Device is preferably delivered to screw rod power generation dress via pipeline from the 30% of turbine generator outflow water vapour total amount for generating electricity
It sets.
Wherein, turbine generator can be the generator of general Steam Turbine Driven, and superheated steam enters in steam turbine
Expansion work makes blade rotate and drive electrical power generators.
Selectively, screw rod power generator uses screw expander generation technology, its working principle is that passing through yin-yang screw rod
The volume expansion of hot fluid in conduit pushes yin-yang screw rod to rotate round about, and realization converts thermal energy into doing for mechanical energy
Merits and demerits journey.
It wherein, is 100~115 degrees Celsius from the temperature of turbine generator outflow water vapour, from screw rod power generator stream
Cold water temperature out is 55~65 degrees Celsius.
Preferably, the inlet of the first fluid flow path of First Heat Exchanger is equipped with for introducing the into first fluid flow path
The inlet of first water pump of one fluid, the second fluid flow path of the second heat exchanger is equipped with for introducing into second fluid flow path
First blower of second fluid.
Selectively, the first fluid in the first fluid flow path of First Heat Exchanger is water, the second of the second heat exchanger
Second fluid in body flow path is air.
Selectively, the pipeline of the cold water flowed out from screw rod power generator is equipped with the second water pump so that cold water is introduced first
The entrance of fluid flowing path.
Selectively, the first smoke backflow pipeline is equipped with the second blower and is prevented back so that partial fume is back at least four
For combustion-supporting at fire-fighting mouth.
Preferably, First Heat Exchanger includes the first shell, the first housing interior volume is divided into reverse parallel first
The septum primum plate of flue gas flow path and first fluid flow path and several first heat pipes being threaded through in septum primum plate, wherein
The evaporation ends of first heat pipe extend in the first flue gas flow path, and the condensation end of the first heat pipe extends in first fluid flow path, the
Several are evenly equipped on the outer wall of the evaporation ends of one heat pipe for increasing the first fin of heat exchange area.
Preferably, the second heat exchanger includes second housing, second housing inner space is divided into reverse parallel second
The septum secundum plate of flue gas flow path and second fluid flow path and several second heat pipes being threaded through in septum secundum plate, wherein
The evaporation ends of second heat pipe extend in the second flue gas flow path, and the condensation end of the second heat pipe extends in second fluid flow path, the
Several are evenly equipped on the evaporation ends of two heat pipes and the outer wall of condensation end respectively for increasing the second fin of heat exchange area.
Wherein, about 900 degrees Celsius of high-temperature flue gas of burner hearth discharge flows through that be cooled to about 500 after First Heat Exchanger Celsius
Degree passes through after the second heat exchanger is cooled to about 150 degrees Celsius, and flue gas is back at least four anti-backfire nozzles and the respectively again
Two mixers.
Selectively, the working medium in the first heat pipe of First Heat Exchanger is the liquid suitable for 1000 degrees centigrade operating conditions
The working medium such as sodium or potassium.
Selectively, the working medium in the second heat pipe of the second heat exchanger is the naphthalene etc. suitable for 500 degrees centigrade operating conditions
Working medium.
Selectively, the temperature of the water vapour in the exit of the first fluid flow path after First Heat Exchanger carries out heat exchange
It is 250~350 degrees Celsius, the temperature of the hot-air in the exit of the second fluid flow path after the second heat exchanger carries out heat exchange
It is 250~350 degrees Celsius.
It wherein, is 6% or so through the oxygen content in the second heat exchanger treated flue gas, through the second heat exchanger, treated
The oxygen content of hot-air is 21% or so, and the oxygen content through the second mixer treated gasifying agent is 15% or so.
The beneficial effects of the present invention are: (1), be sequentially arranged for making flue along the flow of flue gas direction of flue
Flue gas carry out the First Heat Exchanger of heat exchange respectively from different fluids and the second heat exchanger makes more than the flue gas of flue
Heat classification is recycled by First Heat Exchanger and the second heat exchanger, is substantially increased heat recovery efficiency while being effectively reduced discharge dirt
Dye；(2), secondary recovery is carried out using power generation to high-temperature flue gas using First Heat Exchanger, substantially increases flue gas waste heat recovery rate；
(3), First Heat Exchanger and the second heat exchanger difference preheating cold water and cold air, cold water heating are delivered to biology after becoming water vapour
Matter gasification furnace becomes hot-air and is delivered to biomass gasifying furnace as another gasification as a kind of gasifying agent after cold air preheating
Agent, the biological fuel gas of generation are delivered to kiln burning, realize more than burner hearth high-temperature flue gas after mixing again with another strand of hot-air
Recycling for heat, has achieved the purpose that energy-saving and emission-reduction；(4), the high-temperature flue gas for accounting for total amount 15% or so is returned by the first flue gas
It is combustion-supporting that flow tube line is delivered to anti-backfire nozzle, improves efficiency of combustion；(5), anti-backfire nozzle structure is at by flue gas and biomass
Combustion gas is sufficiently mixed, and reinforces rotation, mixed effect using rotational flow fan, further improves efficiency of combustion；(6) it greatly drops
The content of carbon dioxide, nitrogen oxides in the final flue gas of low kiln discharge, is effectively protected environment.
Detailed description of the invention
Fig. 1 shows the construction signal of the energy-saving industrial kiln of the invention using biomass gasification fired electricity generation system
Figure.
Fig. 2 shows the organigrams of First Heat Exchanger of the invention.
Fig. 3 shows the organigram of the second heat exchanger of the invention.
Fig. 4 shows the organigram of the first mixer or the second mixer of the invention.
Fig. 5 shows the organigram of anti-backfire nozzle of the invention.
Specific embodiment
Please refer to Fig. 1, a kind of non-limiting embodiment according to the present invention, using biomass gasification fired electricity generation system
Energy-saving industrial kiln include: 100, four anti-backfire nozzles 120 of kiln furnace body, flue 130, First Heat Exchanger 200,
Two heat exchangers 300, turbogenerator 400 and biomass gasifying furnace 500.
Wherein, burner hearth (not shown) is equipped in kiln furnace body 100, four anti-backfire nozzles 120 are arranged at intervals on kiln furnace
On the bottom end furnace wall of body 100, so as to which combustion gas and combustion-supporting gas are ejected into furnace chamber inner combustion heat release, flue 130 connects
It is connected on the side furnace wall of kiln furnace body 100 so that the flue gas generated in burner hearth is expelled to chimney (not shown).
Along the flow of flue gas direction of flue 130 be sequentially arranged for make the flue gas in flue 130 from it is different
Fluid carry out the First Heat Exchanger 200 and the second heat exchanger 300 of heat exchange respectively.About 900 degrees Celsius be discharged from burner hearth
High-temperature flue gas flow through First Heat Exchanger 200 after be cooled to about 500 degrees Celsius, be cooled to about after passing through the second heat exchanger 300
150 degrees Celsius.
As shown in Fig. 2, First Heat Exchanger 200 include the first shell 210,210 inner space of the first shell is divided into it is inverse
To parallel first fluid flow path 220 and the first flue gas flow path 230 septum primum plate 240 and be threaded through septum primum plate
Several first heat pipes 250 in 240, wherein the evaporation ends of the first heat pipe 250 extend in the first flue gas flow path 230, the first heat
The condensation end of pipe 250 extends in first fluid flow path 220.Working medium in the heat pipe of First Heat Exchanger 200 is suitable for about
The Liquid Sodium or potassium of 800~1200 degrees Celsius of (such as 1000 degrees centigrades) operating conditions, in order to improve heat exchange efficiency, the first heat pipe
Several are evenly equipped on the outer wall of 250 evaporation ends for increasing the first fin 251 of heat exchange area.
As shown in figure 3, the second heat exchanger 300 include second housing 310,310 inner space of second housing is divided into it is inverse
To parallel second fluid flow path 320 and the second flue gas flow path 330 septum secundum plate 340 and be threaded through septum secundum plate
Several second heat pipes 350 in 340, wherein the evaporation ends of the second heat pipe 350 extend in the second flue gas flow path 330, the second heat
The condensation end of pipe 350 extends in second fluid flow path 320, for the purposes of improving heat exchange efficiency, the evaporation ends of the second heat pipe 350
With several are evenly equipped on the outer wall of condensation end respectively for increasing the second fin 351 of heat exchange area.
In non-limiting embodiment shown in Fig. 1, the entrance 221 of the first fluid flow path 220 of First Heat Exchanger 200
It is connected to the first water pump P 1 for supplementing the water as first fluid into first fluid flow path 200 by pipeline, second changes
The entrance 321 of the second fluid flow path 320 of hot device 300 is connected to by pipeline to be made for conveying into second fluid flow path 320
For the first blower F1 of the air of second fluid.As a result, using the first water pump P 1 and the first blower F1 respectively to First Heat Exchanger
200 and second introduce cold water and cold air in heat exchanger 300.The outlet 222 of the first fluid flow path 220 of First Heat Exchanger 200
Successively it is connected with the steam entry 510 of turbine generator 400 and biomass gasifying furnace 500 by water vapour pipeline 260,
The outlet 322 of the second fluid flow path 320 of second heat exchanger 300 passes through the heat of hot-air pipeline 360 and biomass gasifying furnace 500
Air intake 520 is connected, and the biological fuel gas outlet 530 of biomass gasifying furnace 500 passes through biomass fuel gas pipeline 540 and four
A anti-backfire nozzle 120 is connected with by combustion heat release in biomass fuel gas jet to kiln furnace body 100.From kiln furnace body 100
High-temperature flue gas via flue 130 followed by the first flue gas flow path 230 of First Heat Exchanger 200 entrance 231 and go out
The entrance 331 of second flue gas flow path 330 of mouth 232 and the second heat exchanger 300 and outlet 332 are sufficiently expelled to cigarette after heat exchange
Chimney (not shown).
In the non-limiting embodiment, the also branch of hot-air pipeline 360 has hot-air to be in charge of line 370, hot-air point
Pipeline 370 is connected with biomass fuel gas pipeline 540 and is equipped with the first mixer 600 in junction, to will change from second
The hot-air total amount about 30% (volume content) of hot device 300, oxygen content about 21%, the hot-air that temperature is 300 degrees centigrades
It is mixed to form premix gas in the first mixer 600 with biological fuel gas, then is delivered at anti-backfire nozzle 120.
As a kind of alternative embodiments, in the second flue gas flow path of the second heat exchanger 300 on flue 130
The downstream connection of 330 outlet 332 has the first smoke backflow pipeline 140 and the second smoke backflow pipeline 150.Wherein, the first cigarette
It is equipped with the second blower F2 in gas reflux pipeline 140 and is connected with four anti-backfire nozzles 120, thus by amount of flue gas emission about 15%
(volume fraction), oxygen content about 6% (volume content), smoke backflow to four anti-backfires that temperature is 150 degrees centigrades spray
It is used at mouth 120 as combustion-supporting gas.The second mixer being arranged on second smoke backflow pipeline 150 and hot-air pipeline 360
700 are connected, and take the photograph to will account for about amount of flue gas emission 15% (volume fraction), oxygen content about 6% (volume content), temperature for 150
The smoke backflow of family name's degree or so is into the second mixer 700, with oxygen content about 21%, temperature from the second heat exchanger 300
After the hot-air that the hot-air of 300 degrees centigrades is mixed to form oxygen content about 15%, temperature is 200 degrees centigrades, conveying
Gasifying agent is used as to biomass gasifying furnace 500.
In the non-limiting embodiment, as shown in figure 4, the structure phase of the first mixer 600 and the second mixer 700
Together, respectively include blender body MB, set on the one end blender body MB first kind gas access GI1, be set to mixer
The second class gas access GI2, the gas mixing chamber MC inside blender body of ontology side and be set to mixer sheet
Neighbouring mixed gas outlet GO is equipped with rotary blade RI in the mixed gas outlet GO of the other end of body, gas mixing chamber MC.
In the non-limiting embodiment, as shown in figure 5, each anti-backfire nozzle 120 includes nozzle body 121, sets
In the jet port 122 of 121 one end of nozzle body, the mixing chamber 123 inside nozzle body 121 and it is set to nozzle body
121 other end and the air duct distributor 124 being connected to mixing chamber 123, wherein air duct distributor 124 includes same from inside to outside
Center air duct 1241, gaseous mixture air duct 1242 and the flue gas air duct 1243 of heart setting, gaseous mixture air duct 1242 and biological fuel gas
Pipeline 540 is connected, and center air duct 1241 and flue gas air duct 1243 are connected with the first smoke backflow pipeline 140 respectively.In order to
It mixes biological fuel gas preferably with flue gas, is in gaseous mixture air duct 1242 in neighbouring mixing chamber 123 and is equipped with the first eddy flow
Blower CF1, flue gas air duct 1243 is interior to be equipped with the second rotational flow fan CF2.
As another alternative embodiments, about 300 degrees Celsius flowed out after First Heat Exchanger 200 carries out heat exchange
Water vapour flow through turbine generator as 100 degrees centigrades water vapour after, about 30% (body of water vapour total amount will be accounted for
Fraction) water vapour be delivered in screw rod power generator 800 and generate electricity via pipeline, to utilize Industrial Stoves again
Waste heat, 60 degrees Celsius of the cold water flowed out from screw rod power generator can be delivered to first using the second water pump P 2 using pipeline and change
The entrance of the first fluid flow path 220 of hot device 200, realizes recycling for energy.
About 900 degrees Celsius of high-temperature flue gas being discharged in the burner hearth of kiln furnace body 100 as a result, along flue 130 according to
Secondary flow through is cooled to about 500 degrees Celsius using the First Heat Exchanger 200 that cold water carries out heat exchange, passes through and is carried out using cold air
Second heat exchanger 300 of heat exchange is cooled to about 150 degrees centigrades and is expelled to chimney.Hot friendship is carried out from First Heat Exchanger 200
The water vapour for changing 300 degrees centigrades of generation enters turbogenerator 400 and is generated electricity and cooled down as 100 degrees centigrades
Low temperature water vapor stream goes out, and about 70% (volume) of low temperature water vapour flows into biomass gasifying furnace 500 and be used as biomass gasifying furnace 500
A kind of gasifying agent, about 30% low temperature water vapour then flows into screw rod power generator 800 to generate electricity again, and from screw rod generate electricity
About 60 degrees Celsius of the cold water flowed out in device 800 then under the action of the second water pump P 2, is delivered to the of First Heat Exchanger 200
The entrance of one fluid flowing path 220, carries out circulation heat exchange.Meanwhile the 300 of heat exchange generation is carried out in the second heat exchanger 300
The hot-air of degrees centigrade then about half (volume) enters in the second mixer 700, the flue gas of the second heat exchanger 300 discharge
About 15% (volume) then also enters in the second mixer 700 along the second smoke backflow pipeline 150, and flue gas and hot-air are second
Another gasifying agent of the biomass gasifying furnace 500 as biomass gasifying furnace 500, biomass are flowed into after mixing in mixer 700
Gasification furnace 500 generates biology by the hot-air that the water vapour provided using First Heat Exchanger 200 and the second heat exchanger 300 are provided
Matter combustion gas.And the other half hot-air that heat exchange generation is carried out in the second heat exchanger 300 then enters in the first mixer 600,
The biological fuel gas generated with biomass gasifying furnace 500 is mixed into premix gas, is delivered to by biomass fuel gas pipeline 540 anti-
It is tempered in the gaseous mixture air duct 1242 of nozzle 120 and is used as combustion gas, meanwhile, about 15% (body of the flue gas of the second heat exchanger 300 discharge
Product) then along the first smoke backflow pipeline 140 enter anti-backfire nozzle 120 center air duct 1241 and flue gas air duct 1243 in make
For combustion-supporting gas.
Although detailed description of the present invention preferred embodiment herein, it is to be understood that the invention is not limited to this
In the specific structure being described in detail and show, without departing from the spirit and scope of the present invention can be by the technology of this field
Personnel realize other modifications and variant.For example, the UTILIZATION OF VESIDUAL HEAT IN different from First Heat Exchanger and the second heat exchanger can be set
System.In addition, the parameters such as the temperature of system, oxygen content can be according to concrete application conditions in range disclosed in this invention
Interior appropriate selection.
Claims (10)
1. a kind of energy-saving industrial kiln using biomass gasification fired electricity generation system, comprising:
Kiln furnace body, the kiln furnace body is interior to be equipped with burner hearth；
At least four anti-backfire nozzles, at least four anti-backfires nozzle are arranged at intervals on the bottom end furnace wall of the kiln furnace body
On, for combustion gas and combustion-supporting gas to be ejected into the furnace chamber inner combustion heat release；And
Flue, the flue are connected to the cigarette on the side furnace wall of the kiln furnace body will generate in the burner hearth
Gas is expelled to chimney；
The energy-saving industrial kiln using biomass gasification fired electricity generation system further include biomass gasification fired electricity generation system,
And the flue gas and different stream being used to make in the flue being sequentially arranged along the flow of flue gas direction of the flue
Body carries out the First Heat Exchanger and the second heat exchanger of heat exchange respectively；
Wherein, the biomass gasification fired electricity generation system includes turbine generator and biomass gasifying furnace, the biomass
Gasification furnace has steam entry, hot air inlet and biological fuel gas outlet；
It is characterized by:
The First Heat Exchanger has the first flue gas flow path and first fluid flow path, and the outlet of the first fluid flow path passes through water
Steam pipe line is successively connected with the steam entry of the turbine generator and the biomass gasifying furnace；
Second heat exchanger has the second flue gas flow path and second fluid flow path, and the outlet of the second fluid flow path passes through heat
Air line is connected with the hot air inlet of the biomass gasifying furnace；
It is sprayed by biomass fuel gas pipeline and at least four anti-backfire biological fuel gas outlet of the biomass gasifying furnace
Mouth is connected with by combustion heat release in biomass fuel gas jet to the kiln furnace body.
2. using the energy-saving industrial kiln of biomass gasification fired electricity generation system as described in claim 1, which is characterized in that institute
Stating hot-air pipeline also branch has hot-air to be in charge of line, and the hot-air is in charge of line and is connected simultaneously with the biomass fuel gas pipeline
The first mixer is equipped in junction will mix from the part hot-air of second heat exchanger with the biological fuel gas
Form premix gas.
3. using the energy-saving industrial kiln of biomass gasification fired electricity generation system as claimed in claim 2, which is characterized in that
Downstream connection on the flue in the outlet of the second flue gas flow path of second heat exchanger has the first smoke backflow pipe
Line and the second smoke backflow pipeline, wherein the first smoke backflow pipeline is connected at least four anti-backfires nozzle
With partial fume is back at at least four anti-backfires nozzle be used for it is combustion-supporting；The second smoke backflow pipeline with it is described
The second mixer being arranged on hot-air pipeline, which is connected, to be used for and comes so that partial fume to be back in second mixer
The biomass gasifying furnace is delivered to as gasifying agent from after the hot-air mixing of second heat exchanger.
4. using the energy-saving industrial kiln of biomass gasification fired electricity generation system as claimed in claim 3, which is characterized in that institute
Stating each anti-backfire nozzle at least four anti-backfire nozzles includes nozzle body, the injection set on described nozzle body one end
Mouthful, the mixing chamber inside the nozzle body and set on the nozzle body the other end and with the mixing chamber connect
Logical air duct distributor, wherein the air duct distributor include the center air duct being arranged concentrically from inside to outside, gaseous mixture air duct and
Flue gas air duct, the gaseous mixture air duct are connected with the biomass fuel gas pipeline, the center air duct and the flue gas air duct
It is connected respectively with the first smoke backflow pipeline.
5. using the energy-saving industrial kiln of biomass gasification fired electricity generation system as claimed in claim 4, which is characterized in that every
A anti-backfire nozzle further comprises the first rotational flow fan that the neighbouring mixing chamber is set in the gaseous mixture air duct
And it is set to the second rotational flow fan in the flue gas air duct.
6. using the energy-saving industrial kiln of biomass gasification fired electricity generation system as claimed in claim 5, which is characterized in that institute
It states the first mixer or the second mixer includes that blender body, the first kind gas set on described blender body one end enter
Mouth, the second class gas access set on the blender body side, the gas mixing chamber inside the blender body,
And the mixed gas outlet of the other end set on the blender body, wherein the neighbouring mixing in the gas mixing chamber
Gas outlet is equipped with rotary blade.
7. using the energy-saving industrial kiln of biomass gasification fired electricity generation system as claimed in claim 6, which is characterized in that institute
Stating biomass gasification fired electricity generation system further includes screw rod power generator, the part water vapour flowed out from the turbine generator
Via pipeline be delivered to the screw rod power generator for generate electricity be changed into cold water after, be delivered to described first using pipeline and change
The entrance of the first fluid flow path of hot device.
8. using the energy-saving industrial kiln of biomass gasification fired electricity generation system as claimed in claim 7, which is characterized in that institute
The entrance for stating the first fluid flow path of First Heat Exchanger is connected with the first water pump by pipeline into the first fluid flow path
Moisturizing, the entrance of the second fluid flow path of second heat exchanger are connected with the first blower by pipeline with to the second fluid
Air is conveyed in flow path.
9. using the energy-saving industrial kiln of biomass gasification fired electricity generation system as claimed in claim 8, which is characterized in that institute
First Heat Exchanger is stated to include the first shell, first housing interior volume is divided into inversely parallel the first flue gas stream
The septum primum plate of road and the first fluid flow path and several first heat pipes being threaded through in the septum primum plate,
In, the evaporation ends of first heat pipe extend in first flue gas flow path, and the condensation end of first heat pipe extends institute
It states in first fluid flow path, several is evenly equipped on the outer wall of the evaporation ends of first heat pipe for increasing the of heat exchange area
One fin.
10. using the energy-saving industrial kiln of biomass gasification fired electricity generation system as claimed in claim 9, which is characterized in that
Second heat exchanger includes second housing, the second housing inner space is divided into inversely parallel second flue gas
The septum secundum plate of flow path and the second fluid flow path and several second heat pipes being threaded through in the septum secundum plate,
Wherein, the evaporation ends of second heat pipe extend in second flue gas flow path, and the condensation end of second heat pipe extends
In the second fluid flow path, several are evenly equipped on the evaporation ends of second heat pipe and the outer wall of condensation end respectively for increasing
Add the second fin of heat exchange area.
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| CN105937763A (en) * | 2016-06-07 | 2016-09-14 | 广东工业大学 | Harmless treatment system for urban kitchen waste |
| CN107062348B (en) * | 2017-05-04 | 2023-12-01 | 广东省技术经济研究发展中心 | Energy-saving combustion heat supply network optimizing system |
| CN107677136B (en) * | 2017-09-18 | 2024-04-02 | 广东工业大学 | Ceramic kiln waste heat comprehensive recycling system |
| CN113432033A (en) * | 2021-06-10 | 2021-09-24 | 江苏匡集工业科技有限公司 | Centralized intelligent gas supply system |
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Effective date of registration: 20190822 Address after: 511470 Guangzhou Fourth Resources Thermal Power Plant, Dagang Town, Nansha District, Guangdong Province Patentee after: Guangzhou Huantu Nansha Environmental Protection Energy Co., Ltd. Address before: 510050 Panyu District City, Guangzhou Province, the University of Guangdong, West Ring Road, No. 100 Patentee before: Guangdong University of Technology |