CN104747391B - Combustion of industrial boiler fume afterheat travelling-wave type heat and acoustic power generating system - Google Patents
Combustion of industrial boiler fume afterheat travelling-wave type heat and acoustic power generating system Download PDFInfo
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- CN104747391B CN104747391B CN201510114322.3A CN201510114322A CN104747391B CN 104747391 B CN104747391 B CN 104747391B CN 201510114322 A CN201510114322 A CN 201510114322A CN 104747391 B CN104747391 B CN 104747391B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
- F22B33/18—Combinations of steam boilers with other apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/44—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 , e.g. boilers having a combination of features covered by F24H1/24 - F24H1/40
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
- H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The present invention relates to a kind of combustion of industrial boiler fume afterheat travelling-wave type heat and acoustic power generating system.The system includes combustion of industrial boiler subsystem, traveling wave thermoacoustic prime mover subsystem, permanent magnet linear generator subsystem and electric energy storage subsystem.The system mechanical structure is simple, flexible design, the body construction of existing industrial boiler system burning is not changed, improve boiler combustion utilization rate, reduce boiler heat load, and can changes into the fume afterheat that boiler flue is discarded for production and the regulated power used of living, and improves comprehensive utilization rate of energy source.
Description
Technical field：Mist heat recovering produces the field of electric energy when the present invention relates to the use of combustion of industrial boiler.Specifically
Refer to the system design realized using thermoacoustic generation technology and fume afterheat during boiler combustion is changed into electric energy.
Background technology：
Industrial Boiler conveys them by consuming the secondary energy sources such as production of energy steam or hot water, then by heat distribution pipe network
To each heating equipment.More than 1/3rd of energy total flow is accounted for the total amount consumed of the energy in industrial boilers in China, is consumption
One of equipment that can be most.Industrial Boiler produces a large amount of fume afterheats in the process of running, now more using heat pipe heater, heat
The methods of tubular air preheater and heat pipe type of coal saver, carries out flue gas waste heat recovery, but still has a large amount of fume afterheats as discarded
Waste heat is discharged into air, not only pollutes environment, and cause energy waste.If the fume afterheat that can be discharged into air turns
Electric energy is turned to, not only realizes environmental protection, and improve the comprehensive utilization of energy rate of steam generator system.But as the heat of pyroelectric technology
Source, fume afterheat have the characteristics that temperature is low, thermal source rate of change is big, belong to low-quality thermal source, traditional pyroelectric technology be difficult by
It is converted into electric energy.
Thermoacoustic generation technology can utilize low-quality thermal source, have that thermal source adaptability is good, simple in construction, service life length, peace
The potential advantage such as reliable entirely, therefore turn into a kind of emerging energy utilization patterns.But existing thermoacoustic generation technology is mainly applied
In field of solar thermal power generation, from oscillating temperature height is agitated, the deficiency of difficult oscillation starting, which has become, restricts the application of thermoacoustic generation technology
Bottleneck.Existing thermoacoustic generation technology is using fixed resonance tubular construction in addition, and resonatron dissipates a large amount of sound work(during system operation, this
Fixed resonance tubular construction makes the frequency range scope that traveling wave thermoacoustic prime mover subsystem and permanent-magnet linear power generation sub-system resonance are run
It is very limited.When heat and acoustic power generating system is unable to resonance operation, the ability of permanent magnet linear generator subsystem capture sound work(is rapid
Reduce, have a strong impact on the ability of whole system output electric work.Fume afterheat during combustion of industrial boiler is low-quality thermal source, extraneous
When weather or fuel mass and burning condition change, can all heat source temperature be set to change, heat and acoustic power generating system work
The frequency range scope of medium operation is especially big, this with the frequency range of fixed resonatron resonant frequency is limited contradicts.There is thermoacoustic generating again
Hot receiver is also design difficulty in technology, and it is to realize the key for capturing low-quality thermal source heat energy, but thermoacoustic is generated electricity
The research that technology is applied to Industrial Boiler fume afterheat field still belongs to blank, and existing solar heat collector design structure can not
Directly apply in Industrial Boiler fume afterheat travelling-wave type heat and acoustic power generating system.Transported because heat and acoustic power generating system working media fluctuates
Capable mode, permanent magnet linear generator produce the electric energy of alternation, and existing heat and acoustic power generating system exports electric work using resistance measurement is become
The method of ability can not directly produce the regulated power used for production and living.
The content of the invention：
Goal of the invention：The present invention combines combustion of industrial boiler subsystem structure and flue gas flow and carbonated drink flow, and design is special
Door is applied to the combustion of industrial boiler fume afterheat travelling-wave type heat and acoustic power generating system of Mist heat recovering during combustion of industrial boiler, its
Purpose is that solve the regulated power the problems of conventional, its output directly uses for production and life, while improves industry
Boiler combustion subsystem comprehensive utilization of energy rate.
Technical scheme：The present invention is achieved through the following technical solutions：
A kind of combustion of industrial boiler fume afterheat travelling-wave type heat and acoustic power generating system, it is characterised in that：Fired including Industrial Boiler
Burn subsystem, traveling wave thermoacoustic prime mover subsystem, permanent magnet linear generator subsystem and electric energy storage subsystem, Industrial Boiler
Combustion subsystem connects traveling wave thermoacoustic prime mover subsystem, traveling wave thermoacoustic prime mover subsystem connection permanent magnet linear generator
Subsystem, permanent magnet linear generator subsystem connection electric energy storage subsystem.
Combustion of industrial boiler subsystem includes the fire grate for being arranged on burner hearth lower end and the drum or pot that are arranged on burner hearth upper end
Cylinder, is additionally provided with the water screen tube of built-in aqueous medium in burner hearth, and burner hearth is connected with boiler flue, is provided with boiler flue
The economizer connected with drum or drum；Drum or drum connect terminal user by pipeline.
Traveling wave thermoacoustic prime mover subsystem is mainly anti-by thermal recovery storage, primary cooler, acoustics self-adapting tuning pipe, acoustics
Feedback pipe, supplementary cooler, regenerator and thermal buffer tube, thermal recovery storage are arranged on acoustic feedback pipe, and the top of thermal recovery storage is back
Hot device and primary cooler, the lower section of thermal recovery storage is thermal buffer tube and supplementary cooler, and thermal recovery storage is coupled into boiler flue, main
The fixed water cooling tube in cooler periphery, one end of water cooling tube is connected to condensed water or the low-temperature circulating water backwater water outlet of terminal user
Pipe, the other end are connected to the economizer in boiler flue.
Condensed water or low-temperature circulating water backwater outlet pipe connect water cooling tube by boiler circulation pump；Thermal recovery storage uses wing
Shape array.
It is additionally provided with acoustic feedback pipe with the moveable acoustics self-adapting tuning pipe resonance structure of piston, in acoustics certainly
Adapt to be provided with the piston component of variable displacement in tuning pipe resonance structure.
Acoustic feedback pipe is round rectangle structure.
Piston of the permanent magnet linear generator subsystem including capture sound work(, spring resonant mechanism, stator winding, lightweight connect
Bar, permanent magnet, stator yoke and generator casing；Piston and spring resonant mechanism are arranged on the both ends of lightweight connecting bar, piston activity
Be arranged in acoustic feedback pipe, spring resonant mechanism, stator winding, permanent magnet and stator yoke are arranged in generator casing,
Permanent magnet is arranged on lightweight connecting bar, and stator winding is arranged in stator yoke, and stator winding is corresponding with permanent magnet.
Electric energy storage subsystem includes rectifying installation and battery, rectifying installation connecting stator winding and battery.
Rectifying installation uses the structure of diode series connection slide rheostat shunt inductance and electric capacity.
Acoustics self-adapting tuning pipe resonance structure designs and realizes that step is as follows：
Step 1) measures the relevant parameter of traveling wave thermoacoustic prime mover subsystem：Traveling wave thermoacoustic prime mover subsystem exports
And the pressure variations acted on the piston of permanent magnet linear generator subsystemTraveling wave thermoacoustic prime mover subsystem exports
And the working media gas volume flow velocity variable acted on permanent magnet linear generator subsystem pistonTravelling-wave type thermoacoustic is sent out
Gas running frequency ω in motivation subsystem；Tune the piston area A of pipe；Tune the plunger backer chamber acoustic capacitance of pipe
Step 2) measures the relevant parameter of permanent magnet linear generator subsystem：Torque factor Bgrlg；Mechanical impedance Rm；With work
Fill in the spring resonant mechanism stiffness K being connected with permanent magnet moverm；Stator winding resistance Rs；Stator winding inductance coefficent Ls；Stator
Induced-current caused by winding
Step 3) measures the relevant parameter of electric energy storage subsystem：The real part R of accumulator equipment impedanceL1With imaginary part XL2；
Step 4) traveling wave thermoacoustic prime mover subsystem can be because external heat source changes, and runs system off resonance,
Output sound work(and electric energy is caused to reduce rapidly, after acoustics self-adapting tuning pipe resonance structure is located at permanent magnet linear generator subsystem
Side, traveling wave thermoacoustic prime mover subsystem resonance service ability can be improved and improve the output of permanent magnet linear generator subsystem
Electrical power, acoustics self-adapting tuning length of tube be less than traveling wave thermoacoustic prime mover subsystem work dielectric gas wavelength four/
One, end is closed using piston, working media gas flow direction and the main acoustics of acoustic feedback pipe in acoustics self-adapting tuning pipe
Working media gas flow direction has phase angle in runner, can offset due to external heat source change and permanent magnet linear generator subsystem
System, which is coupled into acoustics runner, causes system impedance to mismatch, and this design method can make in traveling wave thermoacoustic prime mover subsystem
The phase matched that portion's longitudinal sound wave transmission is propagated with horizontal entropy, realizes the energy-optimised operation of regenerator so that travelling-wave type thermoacoustic is sent out
Motivation subsystem output sound work(is maximum, and the electric energy of permanent magnet linear generator subsystem output is maximum；
Acoustics self-adapting tuning tube impedance matched design principle is as follows：
Wherein ZgaIt is the acoustic impedance of acoustics self-adapting tuning pipe 23, θ is gas volume in acoustics self-adapting tuning pipe 23
The phase angle of flow velocity and the acoustics sprue gas volume flow velocity of acoustic feedback pipe 24.
Advantage and effect：
The present invention provides a kind of combustion of industrial boiler fume afterheat travelling-wave type heat and acoustic power generating system, and it utilizes thermoacoustic generating skill
Art will discard fume afterheat and be converted into electric energy caused by combustion of industrial boiler, realize effective utilization to low-quality thermal source.It is whole
Individual system architecture is simple, does not change the primary structure of existing combustion of industrial boiler subsystem, and cost is low, and replicability is strong, improves
Comprehensive utilization rate of energy source.Without mechanical moving element in traveling wave thermoacoustic prime mover subsystem, as long as internal regenerator both ends temperature
Degree gradient reaches critical-temperature, will produce sonication in internal system, maintenance cost is reduced compared with traditional combustion engine.
The working media of thermoacoustic generation technology is inert gas, environmentally friendly, safe and reliable to reduce pollution.
Traveling wave thermoacoustic prime mover subsystem thermal recovery storage uses airfoil array, is coupled directly into boiler flue, machine
The thermal recovery storage of wing array does not influence boiler flue inner air flow, and and can improves traveling wave thermoacoustic prime mover transverse direction entropy and passed
The ability passed, realize that heat energy capture is maximum.Heater is arranged on boiler furnace design method compared to conventional heat engines, reduces heat
Collector material requirements, and the utilization rate of boiler oil burning is improved, really realize and generated electricity using boiler combustion fume afterheat.
Traveling wave thermoacoustic prime mover subsystem primary cooler uses the fixed water cooling tube refrigeration in periphery, and water cooling tube and boiler
Condensed water (or low-temperature circulating water backwater) outlet pipe of combustion subsystem is directly connected to, and participates in boiler combustion subsystem water circulation.
The condensed water (or low-temperature circulating water backwater) of boiler combustion subsystem injects traveling wave thermoacoustic prime mover via boiler circulation pump
The primary cooler water cooling tube of system, the economizer progress that boiler combustion subsystem is injected after primary cooler once heats up are secondary
Heating.Both the thermic load of Industrial Boiler subsystem, and can increase traveling wave thermoacoustic prime mover subsystem internal regenerator can have been reduced
Thermograde, improve traveling wave thermoacoustic prime mover subsystem output sound work(ability.
Traveling wave thermoacoustic prime mover subsystem, which uses, has the moveable acoustics self-adapting tuning pipe tuning structure of piston, this
The acoustically tuned pipe design of kind can be according to boiler combustion fume afterheat temperature change active accommodation heat and acoustic power generating system dynamics mistake
The phase between the horizontal entropy vibration in acoustic pressure vibration and thermodynamic process in journey, makes two kinds of vibrations with optimal phase coupling
Close.Industrial Boiler fume afterheat is low-quality thermal source, outside climatic or fuel mass and when burning condition changes, and all can
The temperature of thermal source is set to change, the frequency range scope for causing heat and acoustic power generating system working media resonance to run is especially big.Acoustics is certainly
The problem of tuning pipe tuning structure overcomes existing fixed resonatron frequency range limited is adapted to, improves heat-sound-electricity conversion effect of system
Rate, traveling wave thermoacoustic prime mover subsystem is matched operation with any temperature with the boiler combustion fume afterheat of frequency, improve
The versatility of equipment.This acoustics self-adapting tuning pipe resonance structure makes whole system simple in construction, detection with it is easy to maintenance.
Permanent magnet linear generator subsystem is run using generator-motor starting of oscillation, and system is led into the autonomous collaboration into resonance
Shake control strategy, and this technology for controlling compensation traveling wave thermoacoustic prime mover to agitate starting of oscillation certainly using generator starting of oscillation, which can reduce, is
System oscillating temperature, reduce system from starting of oscillation consumed energy is agitated, improve the energy conversion efficiency of heat and acoustic power generating system, overcome existing
Heat and acoustic power generating system is high from surge oscillating temperature, the deficiency of difficult oscillation starting.
The electric energy storage system is made up of battery and rectifying installation, by entering to the electric energy that heat and acoustic power generating system exports
The processing of row active rectification, the regulated power that the alternate electric energy of heat and acoustic power generating system output is changed into battery output is realized, is supplied
Directly use.
Brief description of the drawings：
The combustion of industrial boiler fume afterheat travelling-wave type heat and acoustic power generating system composition figure of Fig. 1 present invention；
Fig. 2 is the combustion of industrial boiler subsystem structure figure of the present invention；
Fig. 3 is the structure chart of the traveling wave thermoacoustic prime mover subsystem of the present invention；
Fig. 4 is the permanent-magnet linear power generation sub-system and electric energy storage subsystem schematic diagram of the present invention.
Embodiment：
The present invention provides a kind of combustion of industrial boiler fume afterheat travelling-wave type heat and acoustic power generating system, and it mainly sends out thermoacoustic
Power technology applies in combustion of industrial boiler Mist heat recovering to change into the field of electric energy, and the system includes combustion of industrial boiler
Subsystem 1, traveling wave thermoacoustic prime mover subsystem 2, permanent magnet linear generator subsystem 3 and electric energy storage subsystem 4, industrial pot
Stove combustion subsystem 1 connects traveling wave thermoacoustic prime mover subsystem 2, and traveling wave thermoacoustic prime mover subsystem 2 connects permanent-magnet linear
Generator subsystems 3, permanent magnet linear generator subsystem 3 connect electric energy storage subsystem 4.
Combustion of industrial boiler subsystem 1 includes the fire grate 11 for being arranged on the lower end of burner hearth 16 and the vapour for being arranged on the upper end of burner hearth 16
Bag or drum 12, the water screen tube 13 of built-in aqueous medium being additionally provided with burner hearth 16, burner hearth 16 connects with boiler flue 17,
The economizer 18 connected with drum or drum 12 is provided with boiler flue 17；Drum or drum 12 connect terminal by pipeline and used
Family 112.
Traveling wave thermoacoustic prime mover subsystem 2 is mainly by thermal recovery storage 21, primary cooler 22, acoustics self-adapting tuning pipe
23rd, acoustic feedback pipe 24, supplementary cooler 25, regenerator 26 and thermal buffer tube 27, thermal recovery storage 21 are arranged on acoustic feedback pipe 24
On, the top of thermal recovery storage 21 is regenerator 26 and primary cooler 22, and the lower section of thermal recovery storage 21 is cold for thermal buffer tube 27 and pair
But device 25, thermal recovery storage 21 are coupled into boiler flue 17, the fixed water cooling tube 29 in the periphery of primary cooler 22, one end of water cooling tube 29
The condensed water or low-temperature circulating water backwater outlet pipe 113 of terminal user 112 are connected to, the other end is connected in boiler flue 17
Economizer 18.
Condensed water or low-temperature circulating water backwater outlet pipe 113 connect water cooling tube 29 by boiler circulation pump 114；Thermal recovery storage
21 use airfoil array.
It is additionally provided with acoustic feedback pipe 24 with the moveable acoustics self-adapting tuning pipe resonance structure 23 of piston, in sound
Learn the piston component 28 that variable displacement is provided with self-adapting tuning pipe resonance structure 23.
Acoustic feedback pipe 24 is round rectangle structure.
The piston 31 of permanent magnet linear generator subsystem 3 including capture sound work(, spring resonant mechanism 32, stator winding 33,
Lightweight connecting bar 34, permanent magnet 35, stator yoke 36 and generator casing 37；Piston 31 and spring resonant mechanism 32 are arranged on lightweight company
The both ends of bar 34, the activity of piston 31 are arranged in acoustic feedback pipe 24, spring resonant mechanism 32, stator winding 33, permanent magnet
35 and stator yoke 36 be arranged in generator casing 37, permanent magnet 35 is arranged on lightweight connecting bar 34, and stator winding 33 is arranged on
In stator yoke 36, stator winding 33 is corresponding with permanent magnet 35.
Electric energy storage subsystem 4 includes rectifying installation 41 and battery 42, the connecting stator winding 33 of rectifying installation 41 and storage
Battery 42.
Rectifying installation 41 uses the structure of diode series connection slide rheostat shunt inductance and electric capacity
It is described in detail with reference to chain-grate industrial boiler and accompanying drawing：
Fig. 1 is the combustion of industrial boiler fume afterheat travelling-wave type heat and acoustic power generating system composition figure of the present invention.Mainly include work
Industry boiler combustion subsystem 1, traveling wave thermoacoustic prime mover subsystem 2, permanent magnet linear generator subsystem 3, electric energy storage subsystem
System 4.Wherein combustion of industrial boiler subsystem 1 burn caused by flue 17 fume afterheat be traveling wave thermoacoustic prime mover subsystem
System 2 provides thermal source, and the condensed water (or low-temperature circulating water backwater) of combustion of industrial boiler subsystem 1 is via the note of boiler circulation pump 114
Enter the water cooling tube 29 of primary cooler 22 of traveling wave thermoacoustic prime mover subsystem 2, inject and save after primary cooler 22 once heats up
Coal device 18 carries out secondary temperature elevation, can both reduce the thermic load of boiler subsystem 1, and can increase traveling wave thermoacoustic prime mover subsystem
The thermograde of 2 inside regenerators 26, improve the ability of the output sound work(of traveling wave thermoacoustic prime mover subsystem 2.Travelling-wave type thermoacoustic
For engine subsystems 2 by the way that thermal recovery storage 21 is directly coupled in flue 17, capture combustion of industrial boiler subsystem 1 is low-quality
Thermal source, sound work(is converted heat into according to thermoacoustic effect principle, the permanent-magnet linear that driving is embedded into acoustic feedback pipe 24 generates electricity
Piston 31, spring resonant mechanism 32 and the permanent magnet mover 35 of loom system 3 are back and forth run, according to the law of electromagnetic induction, fixed
Sub- winding 33 induces the electric energy of alternation.Rectifying installation 41 in electric energy storage subsystem 4 is directly sub with permanent magnet linear generator
The stator winding 33 of system 3 is connected, and will be filled into after the current rectification of alternation in accumulator equipment 42, and finally output is for production life
The regulated power living directly used.Permanent magnet linear generator subsystem 3 and electric energy storage subsystem 4 and travelling-wave type thermoacoustic simultaneously
The acoustic load of engine subsystems 2, their impedance variations can influence heat and acoustic power generating system energy conversion efficiency again.
Fig. 2 is the structure chart of the combustion of industrial boiler subsystem 1 of the present invention.The chain-grate industrial boiler burning subsystem
The fuel of system 1 burns on fire grate 11 to be heated to the water system of drum (or drum) 12 and water screen tube 13, caused high temperature cigarette
Gas enters flue 17 under air blower 14 and the effect of the external force of air-introduced machine 15, via burner hearth 16, then sequentially passes through travelling-wave type thermoacoustic hair
The thermal recovery storage 21 of motivation subsystem 2, the economizer 18 of combustion of industrial boiler subsystem, air preheater 19, deduster 110,
Chimney 111 is discharged into air.After boiler recirculated water is heated, needed in the inner formation production process of drum (or drum) 12 (or heating)
Steam (or hot water), supply terminal user 112 carry out heat exchange and use.After heat exchange condensed water (or low-temperature circulating water return
Water) injected via circulating pump 114 traveling wave thermoacoustic prime mover subsystem 2 primary cooler 22 water cooling tube 29, by main cooling
Device 22 injects the progress secondary temperature elevation of economizer 18 after once heating up after, flow into drum (or drum) 12 and complete water circulation.
Fig. 3 is the structure chart of the traveling wave thermoacoustic prime mover subsystem 2 of the present invention.The traveling wave thermoacoustic prime mover subsystem
System 2 mainly by thermal recovery storage 21, primary cooler 22, acoustics self-adapting tuning pipe 23, acoustic feedback pipe 24, supplementary cooler 25, return
Hot device 26, thermal buffer tube 27, acoustics self-adapting tuning pipe piston component 28, the fixed water cooling tube 29 in primary cooler periphery form.
Traveling wave thermoacoustic prime mover subsystem 2 captures cigarette in the flue 17 of Industrial Boiler smoke combustion subsystem 1 by thermal recovery storage 21
Gas waste heat heats to the working media gas of internal acoustic runner, when thermograde reaches starting of oscillation critical point, 26 in regenerator
Working media gas produces Sound Self excitation and swung, and according to thermoacoustic effect principle, the fume afterheat of capture is changed into sound work(, driving is embedding
The permanent magnet linear generator subsystem 3 for entering acoustic feedback pipe 24 carries out straight reciprocating motion.
Further, the thermal recovery storage 21 of traveling wave thermoacoustic prime mover subsystem 2 uses airfoil array, is coupled directly into
In boiler flue 17, the thermal recovery storage 21 of airfoil array does not influence the inner air flow of boiler flue 17, and and can improves traveling wave
The ability of 2 horizontal entropy transmission of type thermoacoustic engine subsystem, realize that heat energy capture is maximum.Heater is pacified compared to conventional heat engines
Mounted in boiler furnace design method, the material requirements of thermal recovery storage 21 is reduced, and improve the fuel combustion of Industrial Boiler subsystem 1
Utilization rate, really realize and generated electricity using boiler combustion fume afterheat.
Further, the primary cooler 22 of traveling wave thermoacoustic prime mover subsystem 2 uses the fixed refrigeration of water cooling tube 29 in periphery,
And condensed water (or low-temperature circulating water backwater) outlet pipe 113 of water cooling tube 29 and boiler combustion subsystem 1 is directly connected to, water is participated in
Circulation.The condensed water (or low-temperature circulating water backwater) of boiler combustion subsystem 1 injects travelling-wave type thermoacoustic via boiler circulation pump 114
The water cooling tube 29 of primary cooler 22 of engine subsystems 2, boiler combustion subsystem 1 is injected after primary cooler 22 once heats up
Economizer 18 carry out secondary temperature elevation, both reduced the thermic load of boiler subsystem 1, and can increase traveling wave thermoacoustic prime mover subsystem
Unite the thermogrades of 2 inside regenerators 26, improve the ability of the output sound work(of traveling wave thermoacoustic prime mover subsystem 2.
Further, traveling wave thermoacoustic prime mover subsystem 2, which uses, has the moveable acoustics self-adapting tuning pipe of piston
23 resonance structures, this acoustically tuned resonance structure of pipe 23 can be compensated due to extraneous gas automatically by the change of piston displacement
Time or fuel mass and burning condition change, and cause thermal recovery storage 21 to capture sound wave resistance caused by the flue gas heat of flue 17
Resistance, while can also compensate because permanent magnet linear generator subsystem 3 and electric energy storage subsystem 4 introduce acoustics runner and caused
The change of the acoustic impedance of traveling wave thermoacoustic prime mover subsystem 2.Acoustics self-adapting tuning pipe 23 passes through self-adjusting travelling-wave type thermoacoustic
The phase between the horizontal entropy vibration in acoustic pressure vibration and thermodynamic process in the dynamic process of engine subsystems 2, makes
Two kinds of vibrations can widen the frequency range that permanent magnet linear generator subsystem 3 captures most loud work(again with optimal phase coupling estimation
Scope, traveling wave thermoacoustic prime mover subsystem 2 is set to match fortune with the combustion product gases waste heat of any combustion of industrial boiler subsystem 1
OK.The resonance structure of acoustics self-adapting tuning pipe 23 makes traveling wave thermoacoustic prime mover subsystem 2 simple in construction, detection and maintenance side
Just, versatility and strong applicability, and heat-sound -- the photoelectric transformation efficiency of whole system can be improved.
Further, the design of the resonance structure of acoustics self-adapting tuning pipe 23 and realization principle are as follows：
The relevant parameter of step 1) measurement traveling wave thermoacoustic prime mover subsystem 2：Traveling wave thermoacoustic prime mover subsystem 2 is defeated
The pressure variations for going out and acting on the piston 31 of permanent magnet linear generator subsystem 3Traveling wave thermoacoustic prime mover subsystem
2 outputs and the working media gas volume flow velocity variable acted on the piston 31 of permanent magnet linear generator subsystem 3Traveling wave
Gas running frequency ω in type thermoacoustic engine subsystem 2；Tune the piston area A of pipe 23；Tune the plunger backer chamber sound of pipe 23
Hold
The relevant parameter of step 2) measurement permanent magnet linear generator subsystem 3：Torque factor Bgrlg；Mechanical impedance Rm；With
The stiffness K of spring resonant mechanism 32 that piston 31 is connected with permanent magnet mover 35m；The resistance R of stator winding 33s；The inductance of stator winding 33
Coefficient Ls；Induced-current caused by stator winding 33
The relevant parameter of step 3) measurement electric energy storage subsystem 4：The real part R of accumulator equipment impedanceL1With imaginary part RL2；
Step 4) traveling wave thermoacoustic prime mover subsystem 2 can be because external heat source changes, and runs system off resonance,
Output sound work(and electric energy is caused to reduce rapidly.The resonance structure of acoustics self-adapting tuning pipe 23 is located at permanent magnet linear generator subsystem
3 rear sides, can improve the resonance service ability of traveling wave thermoacoustic prime mover subsystem 2 and improve permanent magnet linear generator subsystem 3
The electrical power of output.The length of acoustics self-adapting tuning pipe 23 is less than the working media gas ripple of traveling wave thermoacoustic prime mover subsystem 2
Long a quarter, end are closed using piston 29.Working media gas flow direction and sound in acoustics self-adapting tuning pipe 23
Learn feedback the main acoustics runner of pipe 24 in working media gas flow direction have phase angle, can offset due to external heat source change and forever
Magnetic linear electric generator subsystem 3, which is coupled into acoustics runner, causes system impedance to mismatch.This design method can make travelling-wave type
The phase matched that the inside longitudinal sound wave transmission of thermoacoustic engine subsystem 2 is propagated with horizontal entropy, realizes that regenerator 26 is energy-optimised
Operation so that the output sound work(of traveling wave thermoacoustic prime mover subsystem 2 is maximum, the electric energy that permanent magnet linear generator subsystem 3 exports
It is maximum.The designing impedance matching principle of acoustics self-adapting tuning pipe 23 is as follows：
Wherein ZgaIt is the acoustic impedance of acoustics self-adapting tuning pipe 23, θ is gas volume in acoustics self-adapting tuning pipe 23
The phase angle of flow velocity and the acoustics sprue gas volume flow velocity of acoustic feedback pipe 24.
Fig. 4 is the permanent-magnet linear power generation sub-system 3 and the schematic diagram of electric energy storage subsystem 4 of the present invention.The permanent-magnet linear
Power generation sub-system 3 is by the piston 31 of capture sound work(, spring resonant mechanism 32, stator winding 33, on lightweight connecting bar 34
Permanent magnet 35, stator yoke 36, generator casing 37 form.
Further, the permanent magnet 35 of permanent-magnet linear power generation sub-system 3 is used as mover installed in lightweight connecting bar 34, and spring is humorous
Mechanism of shaking 32 is connected with piston 31, and stator winding 33 is arranged in stator yoke 36.According to thermoacoustic effect principle, travelling-wave type thermoacoustic hair
The thermal recovery storage 21 of motivation subsystem 2 captures fume afterheat output sinusoidal sound wave pressure in flue 17, acts on embedded travelling-wave type
The surface of 3 piston of permanent-magnet linear power generation sub-system 31 in the acoustic feedback pipe 24 of thermoacoustic engine subsystem 2, the capture row of piston 31
The pressure that wave mode thermoacoustic engine subsystem 2 exports, permanent magnet mover 35 is driven to make straight reciprocating motion.According to faraday's electromagnetism
Induction law, the magnetic flux of stator winding 33 will change, and produce induced electromotive force.Wherein permanent magnet linear generator subsystem
3 independently cooperate with starting of oscillation with thermoacoustic engine using electronic starting of oscillation from starting of oscillation is agitated, i.e., permanent-magnet linear power generation sub-system 3 is using generating
The dynamic starting of oscillation operation of electromechanics, dragging traveling wave thermoacoustic prime mover subsystem 2 lead the autonomous collaboration starting of oscillation control strategy into resonance, used
The control compensation traveling wave thermoacoustic prime mover of permanent-magnet linear power generation sub-system 3 subsystem 2 can reduce system from the technology of surge starting of oscillation
Oscillating temperature, reduce system from starting of oscillation consumed energy is agitated, improve the energy conversion efficiency of heat and acoustic power generating system, overcome existing row
Wave mode thermoacoustic engine subsystem 2 is high from surge oscillating temperature, the deficiency of difficult oscillation starting.
Further, electric energy storage subsystem 4 is made up of rectifying installation 41 and battery 42, to permanent-magnet linear generating subsystem
The electric current of 3 stator winding 33 of uniting output carries out active rectification processing.Using diode series connection slide rheostat and shunt inductance electricity
Hold and realize that will be filled with battery 42 after alternating current rectification that permanent-magnet linear power generation sub-system 3 exports exports regulated power, for life
Production and life directly use.
Combustion of industrial boiler fume afterheat travelling-wave type heat and acoustic power generating system mechanical structure is simple, flexible design, does not change existing
There is combustion of industrial boiler system ontology structure, reduce boiler heat load, improve boiler combustion utilization rate, and can gives up boiler flue
The fume afterheat abandoned is changed into for production and the regulated power used of living, and improves comprehensive utilization rate of energy source.
Claims (8)
- A kind of 1. combustion of industrial boiler fume afterheat travelling-wave type heat and acoustic power generating system, it is characterised in that：Including combustion of industrial boiler Subsystem (1), traveling wave thermoacoustic prime mover subsystem (2), permanent magnet linear generator subsystem (3) and electric energy storage subsystem (4), combustion of industrial boiler subsystem (1) connection traveling wave thermoacoustic prime mover subsystem (2), traveling wave thermoacoustic prime mover subsystem (2) permanent magnet linear generator subsystem (3), permanent magnet linear generator subsystem (3) connection electric energy storage subsystem (4) are connected；Combustion of industrial boiler subsystem (1) includes being arranged on the fire grate (11) of burner hearth (16) lower end and is arranged on burner hearth (16) upper end Drum or drum (12), the water screen tube (13) of built-in aqueous medium, burner hearth (16) and boiler are additionally provided with the burner hearth (16) Flue (17) is connected, and the economizer (18) connected with drum or drum (12) is provided with boiler flue (17)；Drum or pot Cylinder (12) connects terminal user (112) by pipeline；Traveling wave thermoacoustic prime mover subsystem (2) is mainly by thermal recovery storage (21), primary cooler (22), acoustics self-adapting tuning pipe (23), acoustic feedback pipe (24), supplementary cooler (25), regenerator (26) and thermal buffer tube (27), thermal recovery storage (21) are arranged on On acoustic feedback pipe (24), the top of thermal recovery storage (21) is regenerator (26) and primary cooler (22), thermal recovery storage (21) Lower section is thermal buffer tube (27) and supplementary cooler (25), and thermal recovery storage (21) is coupled into boiler flue (17), primary cooler (22) the fixed water cooling tube (29) in periphery, one end of water cooling tube (29) is connected to the condensed water or low-temperature circulating of terminal user (112) Water backwater outlet pipe (113), the other end are connected to the economizer (18) in boiler flue (17).
- 2. combustion of industrial boiler fume afterheat travelling-wave type heat and acoustic power generating system according to claim 1, it is characterised in that：It is cold Condensate or low-temperature circulating water backwater outlet pipe (113) connect water cooling tube (29) by boiler circulation pump (114)；Thermal recovery storage (21) Using airfoil array.
- 3. combustion of industrial boiler fume afterheat travelling-wave type heat and acoustic power generating system according to claim 2, it is characterised in that：Sound Learn and be additionally provided with feedback pipe (24) with the moveable acoustics self-adapting tuning pipe resonance structure (23) of piston, it is adaptive in acoustics The piston component (28) that variable displacement is provided with pipe resonance structure (23) should be tuned.
- 4. combustion of industrial boiler fume afterheat travelling-wave type heat and acoustic power generating system according to claim 3, it is characterised in that：Sound It is round rectangle structure to learn feedback pipe (24).
- 5. combustion of industrial boiler fume afterheat travelling-wave type heat and acoustic power generating system according to claim 3, it is characterised in that：Forever It is the piston (31) of magnetic linear electric generator subsystem (3) including capture sound work(, spring resonant mechanism (32), stator winding (33), light Matter connecting rod (34), permanent magnet (35), stator yoke (36) and generator casing (37)；Piston (31) and spring resonant mechanism (32) are set Put and be arranged in the both ends of lightweight connecting bar (34), piston (31) activity in acoustic feedback pipe (24), spring resonant mechanism (32), Stator winding (33), permanent magnet (35) and stator yoke (36) are arranged in generator casing (37), and permanent magnet (35) is arranged on gently On matter connecting rod (34), stator winding (33) is arranged in stator yoke (36), and stator winding (33) is corresponding with permanent magnet (35).
- 6. combustion of industrial boiler fume afterheat travelling-wave type heat and acoustic power generating system according to claim 5, it is characterised in that：Electricity Subsystem (4), which can be laid in, includes rectifying installation (41) and battery (42), rectifying installation (41) connecting stator winding (33) and storage Battery (42).
- 7. combustion of industrial boiler fume afterheat travelling-wave type heat and acoustic power generating system according to claim 6, it is characterised in that：It is whole Flow device (41) uses the structure of diode series connection slide rheostat shunt inductance and electric capacity.
- 8. combustion of industrial boiler fume afterheat travelling-wave type heat and acoustic power generating system according to claim 3, it is characterised in that：Acoustics self-adapting tuning pipe (23) resonance structure designs and realizes that step is as follows：The relevant parameter of step 1) measurement traveling wave thermoacoustic prime mover subsystem (2)：Traveling wave thermoacoustic prime mover subsystem (2) is defeated The pressure variations for going out and acting on the pistons (31) of permanent magnet linear generator subsystem (3)Traveling wave thermoacoustic prime mover System (2) exports and acts on the change of the working media gas volume flow velocity on permanent magnet linear generator subsystem (3) piston (31) AmountThe interior gas running frequency ω of traveling wave thermoacoustic prime mover subsystem (2)；The piston area A of tuning pipe (23)；Tuning pipe (23) plunger backer chamber acoustic capacitanceThe relevant parameter of step 2) measurement permanent magnet linear generator subsystem (3)：Torque factor Bgrlg；Mechanical impedance Rm；With piston (31) spring resonant mechanism (32) stiffness K being connected with permanent magnet mover (35)m；Stator winding (33) resistance Rs；Stator winding (33) inductance coefficent Ls；Induced-current caused by stator winding (33)The relevant parameter of step 3) measurement electric energy storage subsystem (4)：The real part R of accumulator equipment impedanceL1With imaginary part XL2；Step 4) traveling wave thermoacoustic prime mover subsystem (2) can be because external heat source changes, and runs system off resonance, leads Output sound work(and electric energy is caused to reduce rapidly, acoustics self-adapting tuning pipe (23) resonance structure is located at permanent magnet linear generator subsystem (3) rear side, can improve traveling wave thermoacoustic prime mover subsystem (2) resonance service ability and improve permanent magnet linear generator subsystem The electrical power of system (3) output, acoustics self-adapting tuning pipe (23) length are less than traveling wave thermoacoustic prime mover subsystem (2) work and are situated between The a quarter of matter gas wavelength, end are closed using piston (31), the interior working media gas of acoustics self-adapting tuning pipe (23) There is phase angle flow direction with working media gas flow direction in the main acoustics runner of acoustic feedback pipe (24), can offset due to outer Boundary's thermal source change and permanent magnet linear generator subsystem (3), which are coupled into acoustics runner, causes system impedance to mismatch, this to set Meter method can make the phase matched that the internal longitudinal sound wave transmission of traveling wave thermoacoustic prime mover subsystem (2) is propagated with horizontal entropy, real Existing regenerator (26) energy-optimised operation so that traveling wave thermoacoustic prime mover subsystem (2) output sound work(is maximum, permanent-magnet linear hair The electric energy of motor subsystem (3) output is maximum；Acoustics self-adapting tuning pipe (23) designing impedance matching principle is as follows：Wherein ZgaIt is the acoustic impedance of acoustics self-adapting tuning pipe (23), θ is acoustics self-adapting tuning pipe (23) interior gas volume The phase angle of flow velocity and acoustic feedback pipe (24) acoustics sprue gas volume flow velocity.
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