CN103759464B - The capable ripple thermoacoustic refrigeration system of loop type that a kind of linear compressor drives - Google Patents
The capable ripple thermoacoustic refrigeration system of loop type that a kind of linear compressor drives Download PDFInfo
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- CN103759464B CN103759464B CN201410058792.8A CN201410058792A CN103759464B CN 103759464 B CN103759464 B CN 103759464B CN 201410058792 A CN201410058792 A CN 201410058792A CN 103759464 B CN103759464 B CN 103759464B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1426—Pulse tubes with basic schematic including at the pulse tube warm end a so called warm end expander
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Abstract
The capable ripple thermoacoustic refrigeration system of loop type that linear compressor drives, the capable ripple hot sound refrigerating machine of its loop type being made up of N hot sound refrigerating machine core cell and linear compressor form; Between core cell, be connected and form loop by resonatron; Linear compressor is other to be connected on resonatron, N=3-10 positive integer; Between adjacent core cell voltage, phase difference is 360 degree/N; Core cell includes the inferior indoor temperature end heat exchanger, indoor temperature end laminarization element, thermal buffer tube, cold junction laminarization element, cool end heat exchanger, regenerator and the main indoor temperature end heat exchanger that are connected successively; Resonatron one end connects the first reducer pipe, and the other end connects the second reducer pipe, connection chamber and the 3rd reducer pipe successively; Linear compressor bypass of the present invention connects, and can weaken between refrigeration machine and be coupled, and between linear compressor and refrigeration machine, more easily mates, and core cell is operated in inter-bank wave phase; Its loop structure is recycled sound merit, and the direct current of generation is suppressed by direct current suppressor; It has more practical prospect.
Description
Technical field
The present invention relates to a kind of refrigeration system, the capable ripple thermoacoustic refrigeration of loop type that particularly a kind of linear compressor drivesSystem.
Background technology
High temperature superconductor technology and gas liquefaction in recent years, the demand day of separation industries to long-life, large cold refrigeration machineBenefit increases, but conventional refrigeration machine all exists and asks at aspects such as the thermal efficiency, vibration, noise and low maintenance operation, life-spansTopic. The pulse tube refrigerating machine (one of hot sound refrigerating machine) that linear compressor drives, due to simple in structure, cold headMovement-less part, life-span are long, and can realize more than 20% relative Carnot efficiency, can provide hectowatt to be at 80K warm areaTo a kilowatt above refrigerating capacity, thereby be more and more subject to paying close attention to widely and applying. As shown in Figure 1, mainly by directlyLine compressor and pulse tube refrigerating machine composition. Wherein pulse tube refrigerating machine is by main indoor temperature end heat exchanger 9, regenerator 10,Cool end heat exchanger 11, pulse tube (thermal buffer tube) 12, inferior indoor temperature end heat exchanger 9 ' and be connected to time indoor temperature endPhase modulating mechanism composition after heat exchanger. Phase modulating mechanism makes the regenerator work of pulse tube refrigerating machine by its acoustic impedanceDo in efficient sound field phase place, but taking the sound merit of institute that consumes time indoor temperature end heat exchanger exit as cost. In general,The cold junction refrigerating capacity of pulse tube refrigerating machine and the sound merit of phase modulating mechanism consumption have suitable numerical value, and this just means arteries and veinsWashing pipe refrigeration machine power is larger, and the sound merit that phase modulating mechanism need to consume is larger, if this part sound merit can recycle,The efficiency of system will significantly promote. Therefore, the hot sound of double acting row ripple that a kind of linear compressor drives that grows upRefrigerant system configurations, as shown in Figure 2, by the piston of linear compressor is connected into cyclic system, piston one sideThe refrigeration machine core cell of as compression chamber, sound merit being inputted to this unit, piston opposite side reclaims upper level unit systemThe sound merit that cold machine does not consume. The individual identical linear compressor of N (N >=3) and refrigeration machine core cell combined serial,By by the voltage phase difference ACTIVE CONTROL between linear compressor at 360/N, make regenerator 22 works of refrigeration machineDo at traveling-wave phase, thereby realized Active phasing and the acoustic power recovery of refrigeration machine simultaneously. But this system is straight owing to inciting somebody to actionLine compressor is connected with refrigeration machine, and the coupling between two subsystems is very strong, higher to designing requirement. SimultaneouslyInconsistency in real system between unit can be exaggerated in this train, a motor cisco unity malfunctionTo cause whole system normally to work, thereby processing and manufacturing process will be brought to larger challenge.
For solving the problem running in above two kinds of systems, use for reference the acoustic resonance type that Dutch scholar DEBLOCK proposesThermo-acoustic engine system, the present invention proposes the capable ripple thermoacoustic refrigeration system of loop type that a kind of linear compressor drives.
As shown in Figure 3, a kind of acoustics of announcing in patent WO2010107308A1 for Dutch scholar DEBLOCKResonance type traveling wave thermoacoustic engine system, this system is by arranging multiple thermoacoustic engines on the loop at a wavelengthCore cell builds an engine, and it has the advantages that power density is high, is suitable for large-power occasions. CoreUnit comprises main indoor temperature end heat exchanger 101, regenerator 102, hot end heat exchanger 103, passes through reducing between core cellPipe is connected with resonatron tubule section 109. This system is utilized sound merit and Active phasing possessing double acting system recoveriesOn basis etc. advantage, its key property also comprises: by increasing the Area Ratio of hot sound core cell and resonatron,Reduce the flow velocity in hot sound core cell, reduce the flow resistance loss in regenerator, reduce resonatron diameter simultaneously, increaseAdding system pressure ratio; By multiple Cascade Systems, recycling sound merit is also shared resonatron loss; Load is (as straight lineGenerator) bypass connecting system, reduce coupled characteristic between load and hot sound core cell, be convenient to optimal design andThe manufacture of real system, operation. But WO201007308 exist problem be in system, do not have diameter and regenerator straightThe thermal buffer tube that footpath is suitable, can be owing to existing large turbulent flow to produce cold and hot losses by mixture; Secondly, in this patent alsoThere is no the measure of suppression loop direct current, can cause the loss of heat or cold yet.
Comprehensively, the present invention proposes a kind of novel flowage structure, can solve asking of existing in above-mentioned 3 kinds of traditional processesTopic, the capable ripple thermoacoustic refrigeration system of loop type that a kind of linear compressor drives, can meet efficient, reliable, long-livedThe large refrigeration requirement occasion of life.
Summary of the invention
The object of the invention is to provide a kind of electric-driven refrigerating machine flowage structure, the ring that a kind of linear compressor drivesThe capable ripple thermoacoustic refrigeration system of road type, can obtain a kind of large cold refrigeration system with efficient, reliable, long-life featureSystem, can be used for liquid nitrogen temperature and above various cold junction temperatures and the occasion of different refrigeration requirement; The present invention is by adoptingReclaim, utilize sound merit by loop type structure, and by suppressing the passes such as thermal buffer tube loss, loop sound DC-flowKey measure improves system effectiveness; Connect mode by linear compressor is other, weaken linear compressor and refrigeration machine core listStiffness of coupling between unit, optimal design and the actual motion of being convenient to system regulate; By the introducing of thermal buffer tube, realExisting cool end heat exchanger movement-less part, strengthens system reliability; The energy of combining to improve system by multiple-unit is closeSpend, meet the needs of large cold occasion.
Technical scheme of the present invention is as follows:
The capable ripple thermoacoustic refrigeration system of loop type that linear compressor provided by the invention drives, it is by the capable ripple heat of loop typeAcoustic refrigerator and linear compressor composition; The capable ripple hot sound refrigerating machine of described loop type comprises N hot sound refrigerating machine coreUnit 1,1 of each hot sound refrigerating machine core cell connects and composes loop by resonatron 110 head and the tail; Described straight lineCompressor is N, other being connected on the resonatron 110 in loop respectively, the positive integer that described N is 3-10;
Described each hot sound refrigerating machine core cell 1 comprises the inferior indoor temperature end heat exchanger 101, the thermal buffer tube that are connected successively103, cool end heat exchanger 105, regenerator 106 and main indoor temperature end heat exchanger 107; It is characterized in that, also comprise and connectingBe connected to the indoor temperature end laminarization element 102 between time indoor temperature end heat exchanger 101 and thermal buffer tube 103 and be connected in heat slowCold junction laminarization element 104 between washing pipe 103 and cool end heat exchanger 105; Indoor temperature end laminarization element 102 and cold junctionThe effect of laminarization element 104 be cold in the thermal buffer tube in order to reduce to bring due to the Complex Flows such as turbulent flow or jet,Hot fluid losses by mixture.
For reducing because circulation area changes the flow losses of bringing, described resonatron 110 one end connect one first and becomeFootpath pipe 108, the main indoor temperature end heat exchanger 107 of described the first reducer pipe 108 and described hot sound refrigerating machine core cell 1Be connected; Described resonatron 110 other ends are connected with the second reducer pipe 111, connection chamber 112 and the 3rd reducer pipe in turn113, inferior indoor temperature end heat exchanger 101 phases of described the 3rd reducer pipe 113 and next stage hot sound refrigerating machine core cell 1Connect; To form the capable ripple hot sound refrigerating machine of loop type;
The linear electric motors that described linear compressor 2 comprises two opposed motions are to reduce vibration; Described straight-line electricMachine is made up of piston 201, support unit 202, stator coil 203, mover magnet 204 and shell 205; DescribedLinear compressor 2 successively by the 3rd reducer pipe 113, connection chamber 112 and the other resonance that is connected to of the second reducer pipe 111On pipe 110, the capable ripple thermoacoustic refrigeration system of loop type driving to form linear compressor;
Stator coil 203 incoming transport electricity in described linear compressor 2, according to electromagnetic induction principle, exchangeElectric drive mover magnet 204 moves in stator coil 203, and mover magnet 204 drives piston 201 to do reciprocal fortuneMoving and be sound merit by electric energy conversion, and output in the capable ripple hot sound refrigerating machine of loop type; Adjacent heat acoustic refrigerator coreThe driving voltage amplitude of the linear compressor 2 of unit is equal, has phase difference between voltage, and described phase difference is 360Degree/N;
The sound merit that upper level hot sound refrigerating machine core cell does not consume is via the 3rd reducer pipe 113 and straight line compression at the corresponding levelsThe sound merit that machine 2 is exported is converged in connection chamber 112, and via the second reducer pipe 111, resonatron 110 and firstReducer pipe 108 enters into this hot sound refrigerating machine from the main indoor temperature end heat exchanger 107 of hot sound refrigerating machine core cell at the corresponding levelsIn the regenerator 106 of core cell, this regenerator 106 by consumption sound merit by heat from cool end heat exchanger 105 pumpsDeliver to time indoor temperature end heat exchanger 101, formation temperature gradient in this regenerator 106; Cool end heat exchanger 105 and low temperatureThermal source is connected, and maintains or reduce the temperature of low-temperature heat source by absorbing the heat of low-temperature heat source; Described main chamber's temperatureEnd heat exchanger 107 is connected with indoor temperature end thermal source respectively with time indoor temperature end heat exchanger 101, this main indoor temperature end heat exchanger 107Thermal release is formed to indoor temperature end to environment; The residue sound merit not consuming after this regenerator 106 is passed through successivelyCool end heat exchanger 105, thermal buffer tube 103, inferior indoor temperature end heat exchanger 101, outputs to next stage linear compressorIn connection chamber, this residue sound merit is converged mutually with the output sound merit of next stage linear compressor, by the hot sound system of next stageThe resonatron of cold machine core cell enters into next stage hot sound refrigerating machine core cell, realizes the recycling of sound merit;So circulation, forms the capable ripple thermoacoustic refrigeration system of loop type that linear compressor drives.
Optional position on the described other resonatron 110 that is connected to the capable ripple hot sound refrigerating machine of loop type of linear compressor 2.The interior sound merit loss of the more excellent work phase place of comprehensive regenerator 106 and resonatron 110, described linear compressor 2 canFurther other inferior indoor temperature end heat exchanger 101 sides or the side that is connected to upper level hot sound refrigerating machine core cell is connected to the corresponding levelsMain indoor temperature end heat exchanger 107 sides (these two position system performances are more excellent) of hot sound refrigerating machine core cell.
Described thermal buffer tube 103 and the cool end heat exchanger 105 at its two ends and the cross section of inferior indoor temperature end heat exchanger 101Long-pending than between 0.75～1.25; And be furnished with respectively cold junction laminarization element at the two ends of described thermal buffer tube 103104 and indoor temperature end laminarization element 102, to reduce in thermal buffer tube 103 due to the Complex Flows such as turbulent flow or jet bandThe cold and hot fluid losses by mixture coming.
The circulation area of described resonatron 110 is that 1/25 of hot sound refrigerating machine core cell place circulation area arrives1/10, thereby to keep the acoustic impedance in regenerator 106 to reduce greatly fluid resistance loss; Described resonatron 110Length get approximately sound wave length/N, thereby make system reach loop acoustic resonance state, obtain best acoustic power recoveryAnd realize sound field regulate.
For suppressing the direct current in row ripple loop, hot sound refrigerating machine core cell 1 of the present invention also comprises to be placed in loopDirect current straining element 109; Described direct current straining element 109 is preferably placed at first reducer pipe 108 larger one end of diameter;Described direct current straining element 109 is elastic membrane or asymmetric jet pump.
The working medium that the capable ripple thermoacoustic refrigeration system of loop type that linear compressor of the present invention drives uses for helium, hydrogen,Nitrogen, argon gas or their combined hybrid gas, to meet between different cryogenic temperatures and refrigeration machine and linear compressorCoupling requirement.
In the capable ripple thermoacoustic refrigeration system of loop type that linear compressor of the present invention drives, described hot sound refrigerating machine coreHeart element number and linear compressor quantity can be 3-10 or more, preferably 3,4,6,8,9, can realize different refrigeration work consumptions; As required, hot sound refrigerating machine core cell quantity and linear compressor numberAmount can be identical or not identical;
The capable ripple thermoacoustic refrigeration system of the loop type advantage that linear compressor of the present invention drives is: it can be used for liquid nitrogenUnder warm area and above various cold junction temperatures and meet different refrigeration requirement, by suppressing thermal buffer tube loss, straightThe key measures such as stream loss and effectively recovery sound merit, have improved the performance of complete machine effectively; Meanwhile, due to straight lineCompressor is other to be connected on resonatron, and it is more easy to make to mate between linear compressor and refrigeration machine, and actual motionTime also can regulate the operation quantity of linear compressor; Therefore the loop type that, linear compressor of the present invention drives is capableRipple thermoacoustic refrigeration system has more practical value and application prospect.
Brief description of the drawings
Fig. 1 is existing traditional pulse tube refrigerating machine structural representation;
Fig. 2 is the double acting row ripple thermoacoustic refrigeration system structural representation that existing linear compressor drives;
Fig. 3 is the capable ripple heat and acoustic power generating system of existing acoustic resonance type structural representation;
Fig. 4 is that the capable ripple thermoacoustic refrigeration system of loop type (embodiment 1) structure that linear compressor of the present invention drives is shownIntention;
Fig. 5 is that the capable ripple thermoacoustic refrigeration system of loop type (embodiment 2) structure that linear compressor of the present invention drives is shownIntention;
Fig. 6 is that the capable ripple thermoacoustic refrigeration system of loop type (embodiment 3) structure that linear compressor of the present invention drives is shownIntention;
Fig. 7 is that the capable ripple thermoacoustic refrigeration system of loop type (embodiment 4) structure that linear compressor of the present invention drives is shownIntention;
Detailed description of the invention
The capable ripple thermoacoustic refrigeration system of loop type that linear compressor of the present invention drives, can be used for liquid nitrogen temperature and more thanVarious cold junction temperatures under and meet different refrigeration requirement, by suppress thermal buffer tube loss, DC-flow andThe effectively key measure such as recovery sound merit, improves the performance of complete machine effectively; Meanwhile, be connected to because linear compressor is otherOn resonatron, it is more easy to make to mate between linear compressor and refrigeration machine, and also can regulate when actual motionThe operation quantity of linear compressor; Therefore the capable ripple thermoacoustic refrigeration of the loop type system that, linear compressor of the present invention drivesSystem has more practical value and application prospect.
Further describe the present invention below by drawings and Examples.
Embodiment 1:
Fig. 4 is that the capable ripple thermoacoustic refrigeration system of loop type (embodiment 1) structure that linear compressor of the present invention drives is shownIntention. As shown in Figure 4, the capable ripple thermoacoustic refrigeration system of loop type that the linear compressor of the present embodiment drives, its byThe capable ripple hot sound refrigerating machine of loop type and linear compressor composition; The capable ripple hot sound refrigerating machine of described loop type comprises 3 heatAcoustic refrigerator core cell 1,1 of each hot sound refrigerating machine core cell connects and composes ring by resonatron 110 head and the tailRoad; The equal bypass of 3 linear compressors of the present embodiment 2 is connected on resonatron 110, near upper level hot sound refrigerating machineInferior indoor temperature end heat exchanger 101 sides of core cell 1;
Each hot sound refrigerating machine core cell 1 all comprises the inferior indoor temperature end heat exchanger 101, the thermal buffer tube that are connected successively103, cool end heat exchanger 105, regenerator 106 and main indoor temperature end heat exchanger 107; It is characterized in that, also comprise and connectingBe connected to the indoor temperature end laminarization element 102 between time indoor temperature end heat exchanger 101 and thermal buffer tube 103 and be connected in heat slowCold junction laminarization element 104 between washing pipe 103 and cool end heat exchanger 105; Indoor temperature end laminarization element 102 and cold junctionThe effect of laminarization element 104 be cold in the thermal buffer tube in order to reduce to bring due to the Complex Flows such as turbulent flow or jet,Hot fluid losses by mixture.
For reducing because circulation area changes the flow losses of bringing, described resonatron 110 one end are connected with the first changeFootpath pipe 108; The main indoor temperature end heat exchanger 107 of the first reducer pipe 108 and described each hot sound refrigerating machine core cell 1Be connected; Described resonatron 110 other ends are connected with the second reducer pipe 111, connection chamber 112 and the 3rd reducer pipe in turn113, inferior indoor temperature end heat exchanger 101 phases of described the 3rd reducer pipe 113 and upper level hot sound refrigerating machine core cell 1Connect, to form the capable ripple hot sound refrigerating machine of loop type;
The linear electric motors that each linear compressor 2 comprises two opposed motions are to reduce vibration; Described linear electric motorsFormed by piston 201, support unit 202, stator coil 203, mover magnet 204 and shell 205; This enforcement3 linear compressors of example are respectively by the 3rd reducer pipe 113, connection chamber 112 and the other ring that is connected to of the second reducer pipe 111On resonatron 110 in road, the capable ripple thermoacoustic refrigeration system of loop type driving to form linear compressor;
Stator coil 203 incoming transport electricity in each linear compressor 2, according to electromagnetic induction principle, drive movingSub-magnet 204 moves in stator coil 203, and mover magnet 204 drives piston 201 to move reciprocatingly, therebyBe sound merit by electric energy conversion, output in the capable ripple hot sound refrigerating machine of loop type; Adjacent heat acoustic refrigerator core cellLinear compressor driving voltage amplitude equates, has 120 degree phase differences, thereby make between adjacent cells between voltagePiston movement is operated in 120 degree phase differences, the regenerator work in hot sound refrigerating machine core cell of the ensureing ripple phase of being expert atPosition.
The sound merit that upper level hot sound refrigerating machine core cell does not consume is via the 3rd reducer pipe 113 and straight line compression at the corresponding levelsThe sound merit that machine 2 is exported is converged in connection chamber 112, and via the second reducer pipe 111, resonatron 110 and firstReducer pipe 108 enters into this hot sound refrigerating machine from the main indoor temperature end heat exchanger 107 of hot sound refrigerating machine core cell at the corresponding levelsIn the regenerator 106 of core cell, this regenerator 106 by consumption sound merit by heat from cool end heat exchanger 105 pumpsDeliver to time indoor temperature end heat exchanger 101, formation temperature gradient in this regenerator 106; Cool end heat exchanger 105 and low temperatureThermal source is connected, and maintains or reduce the temperature of low-temperature heat source by absorbing the heat of low-temperature heat source; Described main chamber's temperatureEnd heat exchanger 107 is connected with indoor temperature end thermal source respectively with time indoor temperature end heat exchanger 101, this main indoor temperature end heat exchanger 107Thermal release is formed to indoor temperature end to environment; The residue sound merit not consuming after this regenerator 106 is passed through successivelyCool end heat exchanger 105, thermal buffer tube 103, inferior indoor temperature end heat exchanger 101, outputs to next stage linear compressorIn connection chamber, this residue sound merit is converged mutually with the output sound merit of next stage linear compressor, by the hot sound system of next stageThe resonatron of cold machine core cell enters into next stage hot sound refrigerating machine core cell, realizes the recycling of sound merit;So circulation, forms the capable ripple thermoacoustic refrigeration system of loop type that linear compressor drives.
In the present embodiment, the other inferior indoor temperature end heat exchange being connected near upper level hot sound refrigerating machine unit of linear compressor 2Device exit, sound merit enters hot sound refrigerating machine core cell at the corresponding levels after via resonatron 110 again, has improved regenerator106 work phase places in sound field, machine system service behaviour is better. Thermal buffer tube 103 changes with the cold junction at its two endsHot device 105 and inferior indoor temperature end heat exchanger 101 circulation areas are suitable, and divide at the two ends of described thermal buffer tube 103Be not furnished with cold junction laminarization element 104 and indoor temperature end laminarization element 102, can reduce in thermal buffer tube 103 byThe cold and hot fluid losses by mixture bringing in the Complex Flows such as turbulent flow or jet. The circulation area of resonatron 110 is heat1/25 to 1/10 of acoustic refrigerator core cell place circulation area, can keep regenerator acoustic impedance large, reduce to flowDrag losses. The first reducer pipe 108, the second reducer pipes 111, the introducing of connection chamber 112 and the 3rd reducer pipe 113,Loss can reduce linear compressor 2 consumption sound merit is not converged with upper level time, and reduce resonatron 110 both sidesSectional area changes the sound merit loss bringing; In the first reducer pipe 108, place direct current straining element 109, can suppressDC-flow, improves systematic function.
Embodiment 2:
Fig. 5 is that the capable ripple thermoacoustic refrigeration system of loop type (embodiment 2) structure that linear compressor of the present invention drives is shownIntention. As different from Example 1, linear compressor 2 sides of the present embodiment are connected to hot sound refrigerating machine core at the corresponding levelsMain indoor temperature end heat exchanger 107 sides of heart unit 1. As shown in Figure 5, the ring that the linear compressor of the present embodiment drivesType capable ripple thermoacoustic refrigeration system in road is made up of the capable ripple hot sound refrigerating machine of loop type and linear compressor; The capable ripple heat of loop typeAcoustic refrigerator comprises 3 hot sound refrigerating machine core cells 1, and 1 of each hot sound refrigerating machine core cell passes through resonatron110 head and the tail connect and compose loop; The equal bypass of 3 linear compressors of the present embodiment 2 is connected on resonatron, near this heatMain indoor temperature end heat exchanger 107 sides of acoustic refrigerator core cell 1;
Described hot sound refrigerating machine core cell 1 comprises the inferior indoor temperature end heat exchanger 101, the thermal buffer tube that are connected successively103, cool end heat exchanger 105, regenerator 106, main indoor temperature end heat exchanger 107. It is characterized in that, also comprise connectionIndoor temperature end laminarization element 102 between inferior indoor temperature end heat exchanger 101 and thermal buffer tube 103, be connected in thermal buffer tube103 and cool end heat exchanger 105 between cold junction laminarization element 104. Indoor temperature end laminarization element 102 and cold junction laminar flowThe effect of changing element 104 is hot and cold in the thermal buffer tube in order to reduce to bring due to the Complex Flows such as turbulent flow or jetFluid losses by mixture; For reducing because circulation area changes the flow losses of bringing, comply with described resonatron 111 one endInferior second reducer pipe 110 that is connected with, connection chamber 109, the first reducer pipes 108; The first reducer pipe 108 is with described everyThe main indoor temperature end heat exchanger 107 of one hot sound refrigerating machine core cell 1 is connected; Described resonatron 111 other ends connectThere is the 3rd reducer pipe 112, the inferior indoor temperature end of described the 3rd reducer pipe 112 and upper level hot sound refrigerating machine core cell 1Heat exchanger 101 is connected, to form the capable ripple hot sound refrigerating machine of loop type;
The linear electric motors that described linear compressor 2 comprises two opposed motions are to reduce vibration. Described straight-line electricMachine is made up of piston 201, support unit 202, stator coil 203, mover magnet 204 and shell 205. DescribedLinear compressor 2 be connected to main indoor temperature end by connection chamber 109, the first reducer pipe 108, the second reducer pipe 110 are otherBetween heat exchanger 107 and resonatron 111, form the capable ripple thermoacoustic refrigeration system of loop type that linear compressor drives.The driving voltage amplitude of the linear compressor of adjacent cells equates, has 120 degree phase differences, thereby make between voltagePiston movement between adjacent cells is operated in 120 degree phase differences, ensures the regenerator in hot sound refrigerating machine core cellBe operated in traveling-wave phase.
In the present embodiment, linear compressor 2 is other to be connected near main indoor temperature end heat exchanger 107 porch, linear electric motors 2The sound merit that output sound merit and upper level do not consume directly enters hot sound refrigerating machine core cell, regenerator 106 placesSound field phase place is not good enough than embodiment 1, but has reduced the sound merit loss in resonatron 111 than embodiment 1. HeatSeparator tube 103 is suitable with cool end heat exchanger 105 and inferior indoor temperature end heat exchanger 101 circulation areas at its two ends, andBe furnished with respectively cold junction laminarization element 104 and indoor temperature end laminarization element at the two ends of described thermal buffer tube 103102, can reduce the cold and hot fluid of bringing due to the Complex Flows such as turbulent flow or jet in thermal buffer tube 103 and mix damageLose. The circulation area of resonatron 111 is 1/25 to 1/10 of hot sound refrigerating machine core cell place circulation area, can protectThe acoustic impedance at card regenerator 106 places is larger, thereby reduces the fluid resistance loss in regenerator 106. The first reducingPipe 108, the introducing of connection chamber 109, the second reducer pipes 110 and the 3rd reducer pipe 112, can reduce linear compressor2 losses when consumption sound merit is not converged with upper level, and reduce resonatron 111 both sides sectional areas and change the sound bringingMerit loss. In the 3rd reducer pipe 112, place direct current straining element 113, can suppress DC-flow, raising systemPerformance.
Embodiment 3:
Fig. 6 is that the capable ripple thermoacoustic refrigeration system of loop type (embodiment 3) structure that linear compressor of the present invention drives is shownIntention. As shown in Figure 6, different from embodiment 2, the capable ripple heat of loop type that the linear compressor of the present embodiment drivesAcoustic refrigeration system includes four hot sound refrigerating machine core cells, and each unit all has, and a linear compressor is other to be connectOn each resonatron.
Embodiment 4:
Fig. 7 is that the capable ripple thermoacoustic refrigeration system of loop type (embodiment 4) structure that linear compressor of the present invention drives is shownIntention. As shown in Figure 7, different from embodiment 2, the capable ripple of loop type that the linear compressor in the present embodiment drivesThermoacoustic refrigeration system includes six hot sound refrigerating machine core cells, and each unit all has by a linear compressorBe connected on each resonatron.
In theory, we can be composed in series loop by any number of hot sound refrigerating machine core cells, under actual conditionsNeed to be in conjunction with the condition such as sound field phase place and the power density of system at regenerator place, select that suitable (the present invention is preferredUnit number 3-10).
Above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to aforementioned enforcementExample has been described in detail the present invention, and those of ordinary skill in the art is to be understood that: it still can be to frontState the technical scheme that each embodiment records and modify, or part technical characterictic is wherein equal to replacement;And these amendments or replacement do not make the essence of appropriate technical solution depart from various embodiments of the present invention technical schemesSpirit and scope.
Claims (7)
1. the capable ripple thermoacoustic refrigeration system of loop type that linear compressor drives, it is by the capable ripple thermoacoustic refrigeration of loop typeMachine and linear compressor composition; The capable ripple hot sound refrigerating machine of described loop type comprises N hot sound refrigerating machine core cell (1),Between each hot sound refrigerating machine core cell (1), connect and compose loop by resonatron (110) head and the tail; Described straight lineCompressor is N, and side is connected on the resonatron (110) in loop respectively, the positive integer that described N is 3-10;
Described each hot sound refrigerating machine core cell (1) comprise successively the inferior indoor temperature end heat exchanger (101) that is connected,Thermal buffer tube (103), cool end heat exchanger (105), regenerator (106) and main indoor temperature end heat exchanger (107);It is characterized in that, also comprise the indoor temperature end being connected between time indoor temperature end heat exchanger (101) and thermal buffer tube (103)Laminarization element (102) and be connected in thermal buffer tube (103) and cool end heat exchanger (105) between cold junction laminarizationElement (104);
Described resonatron (110) one end connects the first reducer pipe (108), described the first reducer pipe (108) and instituteThe main indoor temperature end heat exchanger (107) of stating hot sound refrigerating machine core cell (1) is connected; Described resonatron (110) is anotherOne end is connected with the second reducer pipe (111), connection chamber (112) and the 3rd reducer pipe (113) in turn, and describedThree reducer pipes (113) are connected with the inferior indoor temperature end heat exchanger (101) of next stage hot sound refrigerating machine core cell (1);To form the capable ripple hot sound refrigerating machine of loop type;
The linear electric motors that described linear compressor (2) comprises two opposed motions; Described linear electric motors are by piston(201), support unit (202), stator coil (203), mover magnet (204) and shell (205) groupBecome; Described linear compressor (2) becomes by the 3rd reducer pipe (113), connection chamber (112) and second successivelyFootpath pipe (111) is other is connected to resonatron (110) above, the hot sound system of the capable ripple of loop type driving to form linear compressorCooling system;
Stator coil (203) incoming transport electricity in described linear compressor (2), according to electromagnetic induction principle,Alternating current drives mover magnet (204) to move in stator coil (203), and mover magnet (204) drives piston(201) move reciprocatingly and be sound merit by electric energy conversion, and output in the capable ripple hot sound refrigerating machine of loop type; AdjacentThe driving voltage amplitude of the linear compressor (2) of hot sound refrigerating machine core cell (1) equates, has phase between voltagePotential difference, described phase difference is 360 degree/N;
The sound merit that upper level hot sound refrigerating machine core cell does not consume is pressed via the 3rd reducer pipe (113) and straight line at the corresponding levelsThe sound merit of contracting machine (2) output is converged in connection chamber (112), and via the second reducer pipe (111), resonatron(110) and the first reducer pipe (108) from the main indoor temperature end heat exchanger (107) of hot sound refrigerating machine core cell at the corresponding levelsThe regenerator (106) that enters into this hot sound refrigerating machine core cell, this regenerator (106) is by consumption sound meritHeat is pumped into time indoor temperature end heat exchanger (101) from cool end heat exchanger (105), in this regenerator (106)Formation temperature gradient; Cool end heat exchanger (105) is connected with low-temperature heat source, ties up by the heat that absorbs low-temperature heat sourceHold or reduce the temperature of low-temperature heat source; Described main indoor temperature end heat exchanger (107) and time indoor temperature end heat exchanger (101)Be connected with indoor temperature end thermal source respectively, this main indoor temperature end heat exchanger (107) forms indoor temperature end by thermal release to environment;The residue sound merit not consuming after this regenerator (106) is passed through cool end heat exchanger (105), thermal buffer tube successively(103) and time indoor temperature end heat exchanger (101), output in the connection chamber of next stage linear compressor this residueSound merit is converged mutually with the output sound merit of next stage linear compressor, humorous by next stage hot sound refrigerating machine core cellVibration tube enters into next stage hot sound refrigerating machine core cell, realizes the recycling of sound merit; So circulation, forms straightThe capable ripple thermoacoustic refrigeration system of loop type of line driven compressor.
2. the capable ripple thermoacoustic refrigeration system of loop type driving according to the linear compressor described in claims 1, its spyLevy and be, described linear compressor (2) is other to be connected on the resonatron (110) of the capable ripple hot sound refrigerating machine of loop typeOptional position.
3. the capable ripple thermoacoustic refrigeration system of loop type driving according to the linear compressor described in claims 2, its spyLevy and be, the other inferior indoor temperature end heat exchange that is connected to upper level hot sound refrigerating machine core cell of described linear compressor (2)Device (101) side or other main indoor temperature end heat exchanger (107) side that is connected to hot sound refrigerating machine core cell at the corresponding levels.
4. the capable ripple thermoacoustic refrigeration system of loop type driving according to the linear compressor described in claims 1, its spyLevy and be, cool end heat exchanger (105) cross-sectional area at described thermal buffer tube (103) cross-sectional area and its two ends andInferior indoor temperature end heat exchanger (101) cross-sectional area is than between 0.75～1.25.
5. the capable ripple thermoacoustic refrigeration system of loop type driving according to the linear compressor described in claims 1, its spyLevy and be, the circulation area of described resonatron (110) is 1/25 of hot sound refrigerating machine core cell place circulation areaTo 1/10; Described resonatron (110) length is sound wave length/N.
6. the capable ripple thermoacoustic refrigeration system of loop type driving according to the linear compressor described in claims 1, its spyLevy and be, hot sound refrigerating machine core cell (1) also comprises the direct current straining element (109) of placing in loop; InstituteState direct current straining element (109) and be positioned at the large one end of the first reducer pipe (108) diameter; Described direct current straining element(109) be elastic membrane or asymmetric jet pump.
7. the capable ripple thermoacoustic refrigeration system of loop type driving according to the linear compressor described in claims 1, its spyLevy and be, the working medium that the capable ripple thermoacoustic refrigeration system of loop type that described linear compressor drives uses for helium, hydrogen,Nitrogen, argon gas or their combined hybrid gas.
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| CN110454344B (en) * | 2019-08-15 | 2020-10-30 | 中国科学院理化技术研究所 | Loop thermoacoustic driving combined cooling heating and power system structure |
| CN113310247A (en) * | 2020-06-02 | 2021-08-27 | 中国科学院理化技术研究所 | Multi-stage thermoacoustic refrigerator for room temp. region |
| CN114687882B (en) * | 2020-12-29 | 2024-06-18 | 中国科学院理化技术研究所 | Loop type gas-liquid coupling thermo-acoustic system |
| CN113324343B (en) * | 2021-05-07 | 2022-06-07 | 太原理工大学 | Combined cooling heating and power system capable of recovering waste heat |
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