CN107289658B - A kind of thermoacoustic machine and its application - Google Patents
A kind of thermoacoustic machine and its application Download PDFInfo
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- CN107289658B CN107289658B CN201610196368.9A CN201610196368A CN107289658B CN 107289658 B CN107289658 B CN 107289658B CN 201610196368 A CN201610196368 A CN 201610196368A CN 107289658 B CN107289658 B CN 107289658B
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- heat transducer
- function
- thermoacoustic machine
- heat
- transducer
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Classifications
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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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
- F25B9/145—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle pulse-tube cycle
-
- 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
- F25B2309/1402—Pulse-tube cycles with acoustic driver
Abstract
The present invention relates to a kind of thermoacoustic machine and its applications, the thermoacoustic machine includes the first heat transducer (1) and the second heat transducer (2) connected by resonatron (17), first heat transducer (1) exports after amplification in resonatron (17) input the second heat transducer (2) for generating function, and by the function of generation；First heat transducer (1) is cyclic annular heat transducer, and second heat transducer (2) is linear type heat transducer；Above-mentioned thermoacoustic machine gives material gain component, such as vascular refrigerator for output work.Compared with prior art, the present invention has high-efficient, the advantages of simple structure and simple of thermoacoustic machine and the vascular refrigerator being made of thermoacoustic machine.
Description
Technical field
The present invention relates to thermoacoustic fields, more particularly, to a kind of thermoacoustic machine and its application.
Background technique
The vascular refrigerator of existing thermoacoustic machine driving, including heat to power output portion (as thermoacoustic machine) and frozen part, hot merit
Converter section is usually one function converter of a resonatron band, using gas in pipe generation pressure wave of reciprocating vibration to cold
Jelly portion generates cooling capacity.Common heat transducer generally includes two kinds: linear type heat transducer and cyclic annular heat transducer, general
The heat to power output principle of logical linear type thermoacoustic machine is that gas generates function, energy density and ring by irreversible heat exchange in plate is folded
Shape heat transducer is compared to very low, and efficiency is also very low, and advantage is that do not have DC air-flow.Cyclic annular heat transducer due to there is a ring,
Ideal upper annular heat transducer as Stirling engine, but in fact, gas phase modulation poor ability, heat to power output
Efficiency and power density are only more better than linear type without Stirling engine height.In addition, gas not only does reciprocal vibration in ring
It is dynamic, and have one DC component for doing positive hour hands or counterclockwise flow, referred to as DC air-flow.Do the reciprocating vibrational component of air-flow
Original position is returned in a cycle, the flow integral in a cycle is zero.DC air flow component flows in one direction, and one
Integral in period is not zero.DC air-flow destruction work condition makes the reduction of heat to power output efficiency, Gas Vibration can be made to stop when serious
Only.DC air-flow suppressor need to be added to reduce DC throughput, but be difficult to completely eliminate that (DC air-flow suppressor is a direction resistance system
Small, the big device of another direction resistance coefficient of number).Meanwhile the higher hamonic wave of cyclic annular heat transducer is also very big, influences to freeze
Effect.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of thermoacoustic machine and its answer
With.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of thermoacoustic machine, it is described including the first heat transducer and the second heat transducer connected by resonatron
First heat transducer exports after resonatron inputs in the second heat transducer and amplifies for generating function, and by the function of generation；
First heat transducer is cyclic annular heat transducer, and second heat transducer is linear type hot merit
Converter.
First heat transducer can also be coaxial-type heat transducer.
First heat transducer includes connection and constitutes the first cooler of circulation, the first plate is folded, the first heating
Device, the first function transfer tube and feedback pipe, the first function transfer tube are also connected with resonatron, are additionally provided with DC air-flow in feedback pipe
Suppressor.
First heat transducer includes connection and constitutes the first cooler of circulation, the first plate is folded, the first heating
Device, the first function transfer tube and feedback pipe, the first function transfer tube are also connected with resonatron, are additionally provided with reciprocal vibration in feedback pipe
Dynamic pushing piston a.The reciprocal vibration of of reciprocating vibration matching first heat transducer interior air-flow of the pushing piston a in feedback pipe
It is dynamic.
The pushing piston a is driven by external mechanical mechanism or self-vibration spring.
A kind of thermoacoustic machine gives material gain component for output work.
The material gain is vascular refrigerator with component.It can also be other electric energy or mechanical energy converting unit.
The vascular refrigerator is inertia tube vascular refrigerator, by sequentially connected aftercooler, regenerator, cold
Head, vascular, inertia tube and air reservoir composition.
The air reservoir also passes through pipeline and connect with feedback pipe, is additionally provided with pushing piston b between air reservoir and feedback pipe.It pushes away
The expansion work of air reservoir is mainly recycled in the effect of shifting piston b, and it is folded through the first plate and is remake with after the amplifications such as secondary heater
It is exported for function, so as to further increase efficiency.The reciprocal vibration of motion match the first function converter interior air-flow of pushing piston b
It is dynamic.
In three working chambers are formed between step type, with feedback pipe, respectively first works the pushing piston a
Chamber, the second working chamber and third working chamber, wherein the first working chamber connects the first cooler, and the second working chamber connects the first function
Efferent duct, third working chamber directly contact the head end of pushing piston a, and connect air reservoir by pipeline.
Compared with prior art, the invention has the following advantages that
(1) heat to power output of thermoacoustic machine is high-efficient: the present invention is using cyclic annular heat transducer and linear type heat transducer
Combined mode generates function by cyclic annular heat transducer, then amplifies function by linear type heat transducer, to may make heat
The performance of sound machine is between annular thermoacoustic machine and Stirling engine.
(2) by installing a pushing piston a in the feedback pipe of cyclic annular heat transducer, and do it and cyclic annular hot merit
The matched movement of air-flow of reciprocating vibration in converter, not only will not influence the generation and biography of cyclic annular heat transducer internal strength
It is defeated, and DC air-flow has been blocked, to may make the efficiency of cyclic annular heat transducer and Stirling engine about the same.
(3) setting of pushing piston b can recycle the expansion work of air reservoir in inertia tube vascular refrigerator, so as into one
Step provides efficiency of heating- utilization.
(4) structure is simple.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the thermoacoustic machine in the embodiment of the present invention 1；
Fig. 2 is the structural schematic diagram of the thermoacoustic machine in the embodiment of the present invention 2；
Fig. 2-1 is the structural schematic diagram of the thermoacoustic machine in the embodiment of the present invention 2；
Fig. 3 is the structural schematic diagram of the vascular refrigerator of the thermoacoustic machine driving in the embodiment of the present invention 1；
Fig. 4 is the structural schematic diagram of the vascular refrigerator of the thermoacoustic machine driving in the embodiment of the present invention 3；
Fig. 5 is the structural schematic diagram of the vascular refrigerator of the thermoacoustic machine driving in the embodiment of the present invention 4；
Fig. 6 is the structural schematic diagram of the thermoacoustic generator in the embodiment of the present invention 5；
Fig. 7 is the structural schematic diagram of the vascular refrigerator of the thermoacoustic machine driving in the embodiment of the present invention 6；
Fig. 8 is the structural schematic diagram of the vascular refrigerator of the thermoacoustic machine driving in the embodiment of the present invention 6；
In figure, the first heat transducer of 1-, the first cooler of 11-, the first plate of 12- is folded, 13- primary heater, 14- first
Function transfer tube, 15-DC air-flow suppressor, 16- feedback pipe, 17- resonatron, the first working chamber of 18- pushing piston a, 181-, 182-
Second working chamber, 183- third working chamber, the second heat transducer of 19- pushing piston b, 2-, the second cooler of 21-, 22- second
Plate is folded, 23- secondary heater, 24- the second function transfer tube, 3- frozen part, 31- aftercooler, 32- regenerator, 33- cold head, 34-
Vascular, 35- inertia tube, 36- air reservoir, 4- generator assembly, 41- piston, 42- piston rod, 43- generator.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of thermoacoustic machine, structure is as shown in Figure 1, include the first heat transducer 1 connected by resonatron 17 and
Two heat transducers 2, the first heat transducer 1 by be sequentially connected and constitute the first cooler 11 of circulation, the first plate it is folded 12, the
One heater 13, the first function transfer tube 14 and feedback pipe 16 form, and are also equipped with DC air-flow suppressor 15 in feedback pipe 16；The
Two heat transducers 2 fold 22, secondary heater 23 and the second function transfer tube 24 by sequentially connected second cooler 21, the second plate
Composition, the first function transfer tube 14 connect the second cooler 21 by resonatron 17；
When work, the converting heat being added by primary heater 13 is function by the first heat transducer 1, and passes through the first function
A part input resonatron 17 of transfer tube 14, a part through feedback pipe 16 after the first cooler 11 is cooling through the first plate folded 12 with
Primary heater 13 is continued to output after amplifying by the first function transfer tube 14.Function a part of input resonatron 17 is for remaining humorous
The Gas Vibration of vibration tube 17, remainder enter the second hot merit converter 2, again by second after the heat absorption amplification of secondary heater 23
Function transfer tube 24 exports.
Second function transfer tube 24 of above-mentioned thermoacoustic machine connects frozen part 3, as shown in figure 3, frozen part 3 is inertia tube vascular
Refrigeration machine, thus the pulse pipe refrigeration machine system that composition is driven by thermoacoustic machine, frozen part 3 is by aftercooler 31, regenerator 32, cold head
33, vascular 34, inertia tube 35 and air reservoir 36 form.When pulse pipe refrigeration machine system works, gas is of reciprocating vibration inside thermoacoustic machine
Generate pressure wave.Heat is added through primary heater 13, secondary heater 23 and cold head 33, and waste heat is through the first cooler 11, and the
Two coolers 21, aftercooler 31 and inertia tube 35 are put into environment, and primary heater 13 and 23 temperature of secondary heater are higher than ring
Border temperature, cold head temperature 33 are lower than environment temperature.
In the present embodiment, according to thermodynamic principles, the transmission of the second function ideally is reached from the function of resonatron 17
It is amplified when pipe 24, multiple TH/T0, THFor the temperature of secondary heater 23, T0For environment temperature.This and Stirling engine
Equally, but since DC air-flow is difficult to control, actual efficiency can not be compared with Stirling engine.Therefore the thermoacoustic of the present embodiment
It is Stirling that engine, which can regard half as, and half is cyclic annular thermoacoustic machine, and performance is between cyclic annular thermoacoustic machine and Stirling engine
Between.
Embodiment 2
A kind of thermoacoustic machine of coaxial type, structure is as shown in Fig. 2 or Fig. 2-1, in addition to the first function converter 1 is coaxial-type heat
Outside function converter, remaining is same as Example 1.In entire thermoacoustic machine, the first heat transducer 1, resonatron 17 and the second heat
Function converter 2 is on same root axis.Wherein, in shown in Fig. 2, in the first heat transducer 1, it is cooling that feedback pipe 16 passes through first
The first cooler 11 is connected in one end of device 11, the first plate folded 12 and primary heater 13, feedback pipe 16, and the other end is placed in the first function
In efferent duct 14, and for output work into resonatron 17.In shown in Fig. 2-1, feedback pipe 16 and resonatron 17 are directly connected, In
Sequentially connected DC air-flow suppressor 15, the first cooler 11, the first plate are set inside feedback pipe 16 and fold 12, primary heater 13
With the first function efferent duct 14,14 face resonatron 17 of the first function efferent duct.
Embodiment 3
A kind of vascular refrigerator of thermoacoustic machine driving, structure is as shown in figure 4, including thermoacoustic machine and driving company by thermoacoustic machine
The frozen part 3 connect, thermoacoustic machine include the first heat transducer 1 and the second heat transducer 2 connected by resonatron 17, and first
Heat transducer 1 by being sequentially connected and constituting the first cooler 11 of circulation, the first plate folds 12, primary heater 13, the first function
Transfer tube 14 and feedback pipe 16 form, and the pushing piston a18, pushing piston a18 of reciprocating motion are also equipped in feedback pipe 16
Feeding back the of reciprocating vibration of first heat transducer of matching of reciprocating vibration, 1 interior air-flow in pipe 16；Second heat transducer 2 by according to
The second cooler 21, the second plate of secondary connection fold 22, secondary heater 23 and the second function transfer tube 24 composition, the first function transfer tube
14 connect the second cooler 21 by resonatron 17；Frozen part 3 is inertia tube vascular refrigerator, by aftercooler 31, regenerator
32, cold head 33, vascular 34, inertia tube 35 and air reservoir 36 form.
Embodiment 4
A kind of vascular refrigerator of thermoacoustic machine driving, structure is as shown in figure 5, in addition to including knot all in embodiment 3
Structure composition is outer, and the pushing piston b19 for recycling the expansion work of air reservoir 36 is also equipped between air reservoir 36 and feedback pipe 16.Passage
The motion match of the air-flow moved back and forth in the motion conditions of piston b19 and the first heat transducer 1.
Embodiment 5
A kind of thermoacoustic generator, structure is as shown in fig. 6, including thermoacoustic machine and the generating set being drivingly connected by thermoacoustic machine
Part 4, thermoacoustic machine include the first heat transducer 1 and the second heat transducer 2 connected by resonatron 17, the first heat to power output
Device 1 by being sequentially connected and constituting the first cooler 11 of circulation, the first plate folds 12, primary heater 13, the first function transfer tube 14
It is formed with feedback pipe 16, the pushing piston a18 of reciprocating motion is also equipped in feedback pipe 16, pushing piston a18 is managed in feedback
First heat transducer of matching of reciprocating vibration, 1 interior air-flow in 16 it is of reciprocating vibration；Second heat transducer 2 is by sequentially connected
Second cooler 21, the second plate fold 22, secondary heater 23 and the second function transfer tube 24 composition, and the first function transfer tube 14 passes through humorous
Vibration tube 17 connects the second cooler 21；Generator assembly 4 is made of piston 41, piston rod 42 and generator 43.Thermoacoustic machine generates
Function push piston 41 move, and then drive generator 43 generate electricity.
Above-mentioned generator assembly 4 can also be the mechanical energy conversion devices such as brace and connecting rod framework, for generating thermoacoustic machine
Function be converted into mechanical energy.
Embodiment 6
A kind of vascular refrigerator of thermoacoustic machine driving, structure is as shown in Fig. 7 or Fig. 8, including thermoacoustic machine and by thermoacoustic machine
The frozen part 3 of drive connection, thermoacoustic machine include the first heat transducer 1 and the second heat transducer connected by resonatron 17
2, the first heat transducer 1 by being sequentially connected and constituting the first cooler 11 of circulation, the first plate folds 12, primary heater 13,
First function transfer tube 14 and feedback pipe 16 form, and the pushing piston a18 of reciprocating motion is also equipped in feedback pipe 16, and passage is lived
It fills in and forms three working chambers between a18 and feedback pipe 16, respectively the first working chamber 181, the second working chamber 182 and third work
Chamber 183, wherein the first working chamber 181 connects the first cooler 11, and the second working chamber 182 connects the first function efferent duct 14, third
Working chamber 183 directly contacts the head end of pushing piston a18, and connects air reservoir 36 by pipeline；Second heat transducer 2 by
Sequentially connected second cooler 21, the second plate fold 22, secondary heater 23 and the second function transfer tube 24 composition, the transmission of the first function
Pipe 14 connects the second cooler 21 by resonatron 17；Frozen part 3 is inertia tube vascular refrigerator, by aftercooler 31, backheat
Device 32, cold head 33, vascular 34, inertia tube 35 and air reservoir 36 form.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability
Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be of the invention
Within protection scope.
Claims (10)
1. a kind of thermoacoustic machine, which is characterized in that including the first heat transducer (1) connected by resonatron (17) and the second heat
Function converter (2), first heat transducer (1) is for generating function, and by the function of generation through resonatron (17) input the
It is exported after amplification in two heat transducers (2)；
First heat transducer (1) is cyclic annular heat transducer, and second heat transducer (2) is linear type heat
Function converter；
Second heat transducer is folded by sequentially connected second cooler, the second plate, secondary heater and the second function transmit
Pipe composition.
2. a kind of thermoacoustic machine according to claim 1, which is characterized in that first heat transducer (1) can be with
It is coaxial-type heat transducer.
3. a kind of thermoacoustic machine according to claim 1 or 2, which is characterized in that first heat transducer (1) includes
Connect and constitute the first cooler (11) of circulation, the first plate fold (12), primary heater (13), the first function transfer tube (14) and
Feedback pipe (16), the first function transfer tube (14) are also connected with resonatron (17), are additionally provided with DC air-flow in feedback pipe (16)
Suppressor (15).
4. a kind of thermoacoustic machine according to claim 1 or 2, which is characterized in that first heat transducer (1) includes
Connect and constitute the first cooler (11) of circulation, the first plate fold (12), primary heater (13), the first function transfer tube (14) and
Feedback pipe (16), the first function transfer tube (14) are also connected with resonatron (17), are additionally provided with reciprocal vibration in feedback pipe (16)
Dynamic pushing piston a (18).
5. a kind of thermoacoustic machine according to claim 4, which is characterized in that the pushing piston a (18) is by external mechanical
Mechanism or the driving of self-vibration spring.
6. thermoacoustic machine as claimed in claim 4 gives material gain component for output work.
7. a kind of application of thermoacoustic machine according to claim 6, which is characterized in that the material gain is vascular system with component
Cold.
8. a kind of application of thermoacoustic machine according to claim 7, which is characterized in that the vascular refrigerator is inertia tube
Vascular refrigerator, by sequentially connected aftercooler (31), regenerator (32), cold head (33), vascular (34), inertia tube (35)
It is formed with air reservoir (36).
9. a kind of application of thermoacoustic machine according to claim 8, which is characterized in that the air reservoir (36) also passes through pipeline
It is connect with feedback pipe (16), is additionally provided with pushing piston b (19) between air reservoir (36) and feedback pipe (16).
10. a kind of application of thermoacoustic machine according to claim 8, which is characterized in that the pushing piston a (18) is in rank
Ladder type, with feedback pipe (16) between formed three working chambers, respectively the first working chamber (181), the second working chamber (182) and
Third working chamber (183), wherein the first working chamber (181) connects the first cooler (11), and the second working chamber (182) connects the
One function efferent duct (14), third working chamber (183) directly contacts the head end of pushing piston a (18), and is connected by pipeline
Air reservoir (36).
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| CN201610196368.9A CN107289658B (en) | 2016-03-31 | 2016-03-31 | A kind of thermoacoustic machine and its application |
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| CN201610196368.9A CN107289658B (en) | 2016-03-31 | 2016-03-31 | A kind of thermoacoustic machine and its application |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5953921A (en) * | 1997-01-17 | 1999-09-21 | The United States Of America As Represented By The Secretary Of The Navy | Torsionally resonant toroidal thermoacoustic refrigerator |
| WO2004015336A1 (en) * | 2002-08-13 | 2004-02-19 | The Regents Of The University Of California | Circulating heat exchangers for oscillating wave engines and refrigerators |
| CN101655291A (en) * | 2009-09-10 | 2010-02-24 | 浙江大学 | High-pressure-ratio thermoacoustic drive pulse tube refrigerating device adopting liquid-column sound pressure amplifier |
| CN104654649B (en) * | 2013-11-22 | 2017-07-28 | 同济大学 | A kind of pre-cooling type multi-stage pulse tube refrigeration machine |
-
2016
- 2016-03-31 CN CN201610196368.9A patent/CN107289658B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5953921A (en) * | 1997-01-17 | 1999-09-21 | The United States Of America As Represented By The Secretary Of The Navy | Torsionally resonant toroidal thermoacoustic refrigerator |
| WO2004015336A1 (en) * | 2002-08-13 | 2004-02-19 | The Regents Of The University Of California | Circulating heat exchangers for oscillating wave engines and refrigerators |
| CN101655291A (en) * | 2009-09-10 | 2010-02-24 | 浙江大学 | High-pressure-ratio thermoacoustic drive pulse tube refrigerating device adopting liquid-column sound pressure amplifier |
| CN104654649B (en) * | 2013-11-22 | 2017-07-28 | 同济大学 | A kind of pre-cooling type multi-stage pulse tube refrigeration machine |
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