CN109556318A - A kind of hot sound refrigerating machine - Google Patents
A kind of hot sound refrigerating machine Download PDFInfo
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- CN109556318A CN109556318A CN201710874780.6A CN201710874780A CN109556318A CN 109556318 A CN109556318 A CN 109556318A CN 201710874780 A CN201710874780 A CN 201710874780A CN 109556318 A CN109556318 A CN 109556318A
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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
- F25B23/00—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect
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Abstract
The present invention relates to a kind of hot sound refrigerating machines, including compressor and cold head, the cold head is made of radiator, regenerator, cooling capacity heat exchanger, inertia tube and air reservoir, the compressor uses step piston structure, form compression chamber and expansion chamber, the compression chamber is connected with radiator, and the expansion chamber is connected with air reservoir, forms the temperature difference between the compression chamber and expansion chamber.The present invention uses the structure of step piston, so that compressor forms compression chamber and expansion chamber, compared with vascular refrigerator, room temperature and the temperature difference of low temperature are undertaken by second level piston and second level cylinder, in terms of large-scale low-temperature refrigeration machine, the losses by mixture due to gas in vascular can be reduced, to obtain higher refrigeration effect.
Description
Technical field
The present invention relates to refrigeration machine fields, more particularly, to a kind of hot sound refrigerating machine.
Background technique
Traditional hot sound refrigerating machine, structure as shown in Figure 1, be made of compressor 3 and cold head 1, compressor 3 by piston 31 with
Cylinder 32 forms, and forms compression chamber 331, cold head 1 is by radiator 11, regenerator 12, cooling capacity heat exchanger 13, inertia tube 14 and air reservoir
15 compositions.Regenerator 12 uses plate stack structure.
Piston 31 moves back and forth under the driving of driving mechanism such as linear motor, generates pressure wave.Cooling capacity heat exchanger 13 is right
Outer output cooling capacity, radiator 11 radiate to room temperature.Gas is vibrated in inertia tube 14, thus since thermoacoustic effect is in regenerator 12
Enthalpy stream from right to left is formed, to generate refrigeration effect, exports cooling capacity in cooling capacity heat exchanger 13.Due to gas in inertia tube 14
Oscillation, pressure about reverse phase in compression chamber 331 and air reservoir 15.Inertia tube 14 and air reservoir 15 at low temperature, temperature substantially and
Cooling capacity heat exchanger 13 is in same temperature levels.Air reservoir 15 makes 14 length of inertia tube shorten and reduce loss.
Since the refrigeration effect of regenerator 12 is limited, although only one moving component of this refrigeration machine, its temperature of freezing
Degree is only only below 200K, is difficult to use as Cryo Refrigerator.With the raising of refrigeration demand and other vascular refrigerators
Development, traditional hot sound refrigerating machine as shown in Figure 1 are gradually eliminated.
Summary of the invention
Step piston is used it is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of
The hot sound refrigerating machine of structure cannot be only used for low temperature, and can extend to ultralow temperature so that its refrigerating efficiency be made to greatly improve.
The purpose of the present invention can be achieved through the following technical solutions:
The present invention provides a kind of hot sound refrigerating machine, including compressor and cold head, and the cold head is by radiator, regenerator, cold
It measures heat exchanger, inertia tube and air reservoir composition, the compressor and uses step piston structure, form compression chamber and expansion chamber, it is described
Compression chamber is connected with radiator, and the expansion chamber is connected with air reservoir, and the temperature difference is formed between the compression chamber and expansion chamber, i.e., described
Compression chamber is in room temperature, and the expansion chamber is in low temperature, and the low temperature refers to cryogenic temperature.
Further, the piston of the compressor is divided into ladder-like, is made of first order piston and second level piston, described
The cylinder of compressor is also divided into staged, is made of first order cylinder and second level cylinder, to form compression chamber and expansion chamber.
That is, the second level piston and second level cylinder one end are in room temperature, one end is used in low temperature, this low temperature and air reservoir
Property pipe and cooling capacity heat exchanger are essentially the same.
The second level piston and second level cylinder are all made of thin-wall construction, and to reduce conductive heat loss, wall can be used stainless
Steel, the low Heat Conduction Material such as glass reinforced plastic is to further decrease loss.
Hot sound refrigerating machine refrigeration principle of the present invention are as follows: due to the oscillation of inertia tube, pressure wave between air reservoir and compression chamber
Phase difference is substantially in 180 degree.If the PV function integral of compression chamber is negative, the PV integral of expansion chamber is positive.In this way, refrigeration principle
Just become gas expansion from thermoacoustic effect, refrigerating capacity greatly increases, and cryogenic temperature substantially reduces.Its theoretical refrigerating capacity can be with this spy
Woods refrigeration machine is compared.Therefore, under high cryogenic temperature, such as 200K or more, regenerator can use plate stack structure, in low refrigeration temperature
Under degree, such as 77K hereinafter, regenerator should be used, such as the silk screen very big using heat transfer area.
The structure of hot sound refrigerating machine of the present invention can do more shape changeable, and cold head is set as multilevel structure as will be described, multistage
It is used between cold head and is connected in series or is connected in parallel.
When using multistage cold head, the radiator of every level-one cold head is connected with compression chamber simultaneously, the inertia of every level-one cold head
It manages and shares an air reservoir or be connected respectively with individual air reservoir, when sharing an air reservoir, which is directly connected with expansion chamber, if
When setting multiple air reservoirs, multiple air reservoirs are connected with expansion chamber simultaneously.
The hot sound refrigerating machine is also used as cold engine, thermo-motor or heat pump to use.As vascular refrigerator, this hair
Bright hot sound refrigerating machine can work: refrigeration machine, cold engine, thermo-motor, heat pump mode, the refrigeration machine given for one,
In the case where given room temperature and cooling capacity heat exchanger, using which kind of operating mode, this depends on sweeping for compression chamber and expansion chamber
Air space ratio.
Further, since inertia tube and air reservoir are in low temperature, area is very big, thus can be used as a part of cooling capacity heat exchanger, because
This, can be such that cooling capacity heat exchanger no longer needs, i.e., hot sound refrigerating machine can use following form.
That is, a kind of hot sound refrigerating machine, including compressor and cold head, the cold head are gentle by radiator, regenerator, inertia tube
Library composition, the compressor use step piston structure, form compression chamber and expansion chamber, the compression chamber are connected with radiator,
The expansion chamber is connected with air reservoir, forms the temperature difference between the compression chamber and expansion chamber.
For being not provided with the hot sound refrigerating machine of cooling capacity heat exchanger, the cold head equally can be set to multilevel structure,
It is used between multistage cold head and is connected in series or is connected in parallel.
The radiator of every level-one cold head is connected with compression chamber simultaneously, and the inertia tube of every level-one cold head shares an air reservoir or divides
It is not connected with individual air reservoir, when sharing an air reservoir, which is directly connected with expansion chamber, multiple when multiple air reservoirs are arranged
Air reservoir is connected with expansion chamber simultaneously.
For being not provided with the hot sound refrigerating machine of cooling capacity heat exchanger, the hot sound refrigerating machine equally also starts as cold
Machine, thermo-motor or heat pump use.As vascular refrigerator, hot sound refrigerating machine of the present invention can work: refrigeration machine cold starts
Machine, thermo-motor, heat pump mode, the refrigeration machine given for one are adopted in the case where given room temperature and cooling capacity heat exchanger
With which kind of operating mode, this depends on the scavenging volume ratio of compression chamber and expansion chamber.
Compared with prior art, the present invention uses the structure of ladder-like piston, so that compressor forms compression chamber and expansion
Chamber, compared with vascular refrigerator, the temperature difference of room temperature and low temperature is undertaken by second level piston and second level cylinder.In large-scale low-temperature system
In terms of cold, the losses by mixture due to gas in vascular can be reduced, to obtain higher refrigeration effect.
Detailed description of the invention
Fig. 1 is traditional hot sound refrigerating machine structural schematic diagram；
Fig. 2 is hot sound refrigerating machine structural schematic diagram in embodiment 1；
Fig. 3 is hot sound refrigerating machine structural schematic diagram in embodiment 2；
Fig. 4 is hot sound refrigerating machine structural schematic diagram in embodiment 3；
Fig. 5 is hot sound refrigerating machine structural schematic diagram in embodiment 4.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
The present embodiment provides a kind of hot sound refrigerating machines, as shown in Fig. 2, including compressor 3 and cold head 1, cold head 1 is by radiator
11, regenerator 12, cooling capacity heat exchanger 13, inertia tube 14 and air reservoir 15 form, and compressor 3 uses step piston structure, form pressure
Contracting chamber 331 and expansion chamber 332, compression chamber 331 are connected with radiator 11, and expansion chamber 332 is connected with air reservoir 15.
Wherein, the piston of compressor 3 is divided into ladder-like, is made of first order piston 311 and second level piston 312, compression
The cylinder of machine 3 is also divided into staged, is made of first order cylinder 321 and second level cylinder 322, to form 331 He of compression chamber
Expansion chamber 332.
In room temperature, one end is used in low temperature, this low temperature and air reservoir 15 for second level piston 312 and 322 one end of second level cylinder
Property pipe 14 and cooling capacity heat exchanger 13 are essentially the same.Here low temperature refers to cryogenic temperature.
In the present embodiment, second level piston 312 and second level cylinder 322 assume responsibility for room temperature to the temperature difference or cylinder of low temperature
One end close to air reservoir is in low temperature, and the other end is in room temperature.Thin-wall construction can be used in second level piston 312 and second level cylinder 322,
To reduce conductive heat loss, stainless steel is can be used in wall, and the low Heat Conduction Material such as glass reinforced plastic is to further decrease loss.Second level piston
312 can be used hollow structure.
Fig. 2 is the improvement to the thermoacoustic machine of Fig. 1.If refrigeration principle is thermo-acoustic principles without expansion chamber 322, it is difficult to obtain
Obtain low temperature.There is expansion chamber 322, refrigeration principle has reformed into gas expansion, and the contribution of thermoacoustic effect becomes very faint.Here
Step piston 312 and ladder cylinder 322 as expansion cylinder, connect phase with the expansion piston of traditional sterlin refrigerator
It connects together when in compression piston and cylinder, so that two moving components are become one.And traditional sterlin refrigerator
Since structure is complicated, gradually replaced in recent years with refrigeration machine field by vascular refrigerator in space.
Compared with step piston vascular refrigerator, air reservoir and inertia tube all in low temperature, it can be achieved that bigger heat transfer area with
Conducive to the external transmission of cooling capacity.Moreover, step piston 312 and ladder cylinder 322 undertake the temperature difference between room temperature and low temperature, axis
To thermally conductive controllable, and vascular is due to being gas flowing, and the axial heat conduction loss as caused by gas mixing has its natural law, we
It is unable to control, therefore the present invention is expected to realize higher refrigerating efficiency.Especially under big refrigeration work consumption, vascular becomes huge,
The axial conductive heat loss as caused by gas mixing can be bigger.The invention will have bigger advantage.
Compared with Fig. 2, the ratio between the heat exchange area of regenerator 12 and volume need to reduce Fig. 1, become sparse silk screen or tradition
Plate it is folded.
The present embodiment hot sound refrigerating machine refrigeration principle are as follows: due to the oscillation of inertia tube 14, between air reservoir 15 and compression chamber 331
The phase difference of pressure wave is substantially in 180 degree.If the PV function integral of compression chamber 331 is negative, the PV integral of expansion chamber 332 is
Just.In this way, refrigeration principle just becomes gas expansion from thermoacoustic effect, refrigerating capacity is greatly increased with refrigerating efficiency, and cryogenic temperature is big
It is big to reduce.If not considering the loss of inertia tube, theoretical refrigerating capacity can be compared with sterlin refrigerator.Since refrigeration principle becomes
For gas expansion, original plate is folded to can be changed to regenerator.But under high cryogenic temperature, such as 200K or more, plate still can be used and fold,
Under low cryogenic temperature, such as 77K hereinafter, regenerator should be used, such as the silk screen very big using heat transfer area.
The structure of hot sound refrigerating machine can do more shape changeable in the present embodiment, such as set multilevel structure for cold head 1, multistage
It is used between cold head and is connected in series or is connected in parallel.
Embodiment 2
Refrigeration machine is made into two stage cooler by lower temperature in order to obtain, the present embodiment.
Hot sound refrigerating machine in the present embodiment is as shown in figure 3, include compressor and cold head, wherein compressor is made into three-level, i.e.,
Piston is divided into ladder-like, is made of first order piston 311, second level piston 312 and third level piston 313, the cylinder of compressor
It is also divided into three-level staged, is made of first order cylinder 321, second level cylinder 322 and third level cylinder 323, thus the first order
Compression chamber 331 is formed between piston 311 and first order cylinder 321, is formed between second level piston 312 and second level cylinder 322
First expansion chamber 332 forms the second expansion chamber 333 between third level piston 313 and third level cylinder 323.
Cold head is by radiator 11, first order regenerator 12, first order cooling capacity heat exchanger 13, first order inertia tube 14, first
Grade air reservoir 15, second level regenerator 22, second level cooling capacity heat exchanger 23, second level inertia tube 24 and second level air reservoir 25 form,
Radiator 11, first order regenerator 12, first order cooling capacity heat exchanger 13, first order inertia tube 14,15 sequence phase of first order air reservoir
Even, second level regenerator 22, second level cooling capacity heat exchanger 23,24 and of second level inertia tube are accessed after first order regenerator 12
Second level air reservoir 25.Radiator 11 is connected with compression chamber 331, and first order air reservoir 15 accesses the first expansion chamber 332, second level air reservoir
25 access second level expansion chambers 333.
Here, third level piston 313 and third level cylinder 323 bear first order cryogenic temperature and second level cryogenic temperature
Difference.Second level cooling capacity heat exchanger 23, second level inertia tube 24 and second level air reservoir 25 and second level expansion chamber 333 are in second
Grade cryogenic temperature.
Second level refrigerating capacity is obtained from second level cooling capacity heat exchanger 23, and second level cryogenic temperature is lower than the first order.Such as the
Level-one cryogenic temperature is 80K, and second level cryogenic temperature is 20K.
The working principle of the second level is as the first order.
Embodiment 3
Refrigeration machine is made into two stage cooler by lower temperature in order to obtain, the present embodiment.
Hot sound refrigerating machine in the present embodiment is as shown in figure 4, include compressor and cold head, wherein compressor is made into three-level, i.e.,
Piston is divided into ladder-like, is made of first order piston 311, second level piston 312 and third level piston 313, the cylinder of compressor
It is also divided into three-level staged, is made of first order cylinder 321, second level cylinder 322 and third level cylinder 323, thus the first order
Compression chamber 331 is formed between piston 311 and first order cylinder 321, is formed between second level piston 312 and second level cylinder 322
First expansion chamber 332 forms the second expansion chamber 333 between third level piston 313 and third level cylinder 323.
Cold head is by first order radiator 11, first order regenerator 12, first order cooling capacity heat exchanger 13, first order inertia tube
14, air reservoir 15, the first radiator of the second level 211, the first regenerator of the second level 212, second level precool heat exchanger device 213, heat bridge
214, the second regenerator of the second level 222, second level cooling capacity heat exchanger 223, second level vascular 26 form, first order radiator 11,
First order regenerator 12, first order cooling capacity heat exchanger 13, first order inertia tube 14, air reservoir 15 are sequentially connected, and the second level first dissipates
Hot device 211, the first regenerator of the second level 212, second level precool heat exchanger device 213, the second regenerator of the second level 222, the second level are cold
It measures heat exchanger 223 to be sequentially connected, passes through 214 phase of heat bridge between first order cooling capacity heat exchanger 13 and second level precool heat exchanger device 213
Even, second level vascular 26 is accessed after second level cooling capacity heat exchanger 223, the close first order of first order inertia tube is accessed in hot end
Cooling capacity heat exchanger end.First order radiator 11 is connected with compression chamber 331, and the first radiator of the second level 211 accesses the first expansion chamber
332, air reservoir 15 accesses second level expansion chamber 333.
In the present embodiment, the first order and the public inertia tube of second level cold head, to improve the phase modulation ability of the second level, this
When the second level have oneself independent the first radiator of the second level 211, the first regenerator of the second level 212, second level precool heat exchanger device
213, heat bridge 214.214 are thermally connected second level precool heat exchanger device 213 and first order cooling capacity heat exchanger 13, thus stop room temperature to
The leakage heat of the second level, to increase the refrigerating capacity of the second level.
Access second level vascular 26 after second level cooling capacity heat exchanger 23, hot end access first order inertia tube close to the
Level-one cooling capacity heat exchanger end.Due to being public inertia tube, the diameter of such inertia tube can be increased, to reduce the resistance of inertia tube
Loss.And then improve refrigerating efficiency.
Simultaneously because the sealing between compression chamber 331 and the first expansion chamber 332, due to collaborating between the first order and the second level
Caused by loss caused by DC component can be reduced to insignificant degree.
For Fig. 4 compared with Fig. 3, only one step piston reduces the complexity of manufacture in low temperature.
Embodiment 4
The present embodiment provides a kind of hot sound refrigerating machines, as shown in figure 5, including compressor and cold head, wherein the work of compressor
Plug is divided into ladder-like, is made of first order piston 311 and second level piston 312, and the cylinder of compressor is also divided into staged, by the
Level-one cylinder 321 and second level cylinder 322 form, to form compression chamber 331 and expansion chamber 332.
Cold head is by first order radiator 11, first order regenerator 12, first order cooling capacity heat exchanger 13, first order inertia tube
14, air reservoir 15, the first radiator of the second level 211, the first regenerator of the second level 212, second level precool heat exchanger device 213, heat bridge
214, the second regenerator of the second level 222, second level cooling capacity heat exchanger 223, second level vascular 26 form, first order radiator 11,
First order regenerator 12, first order cooling capacity heat exchanger 13, first order inertia tube 14, air reservoir 15 are sequentially connected, and the second level first dissipates
Hot device 211, the first regenerator of the second level 212, second level precool heat exchanger device 213, the second regenerator of the second level 222, the second level are cold
It measures heat exchanger 223 to be sequentially connected, passes through 214 phase of heat bridge between first order cooling capacity heat exchanger 13 and second level precool heat exchanger device 213
Even, second level vascular 26 is accessed after second level cooling capacity heat exchanger 223, the close first order of first order inertia tube is accessed in hot end
Cooling capacity heat exchanger end.First order radiator 11 is connected with compression chamber 331, and second piston structure also can be made pre-cooling type, at this point,
The second regenerator of the second level 222 is directly connected in compression by the first regenerator of the second level 212 and the first radiator of the second level 211
In chamber 331, air reservoir 15 accesses second level expansion chamber 333.
This embodiment is compared with Fig. 4, and there are the control problems of DC component.
Embodiment 5
Since inertia tube 14 and air reservoir 15 are in low temperature, area is very big, thus can be used as a part of cooling capacity heat exchanger, because
This, can be such that cooling capacity heat exchanger 13 in embodiment 1 no longer needs.
The present embodiment provides a kind of hot sound refrigerating machines, compared with Example 1, do not need cooling capacity heat exchanger 13.
The present embodiment hot sound refrigerating machine includes compressor 3 and cold head 1, and cold head 1 is by radiator 11, regenerator 12, inertia tube
14 and air reservoir 15 form, compressor 3 uses step piston structure, forms compression chamber 331 and expansion chamber 332, compression chamber 331 and dissipates
Hot device 11 is connected, and expansion chamber 332 is connected with air reservoir 15.
For being not provided with the hot sound refrigerating machine of cooling capacity heat exchanger 13, cold head 1 equally can be set to multilevel structure, more
It is used between grade cold head and is connected in series or is connected in parallel.
The radiator 11 of every level-one cold head is connected with compression chamber 331 simultaneously, and the inertia tube 14 of every level-one cold head shares one
Air reservoir 15 is connected with individual air reservoir respectively, and when sharing an air reservoir 15, which is directly connected with expansion chamber 332, if
When setting multiple air reservoirs, multiple air reservoirs are connected with expansion chamber 332 simultaneously.
For being not provided with the hot sound refrigerating machine of cooling capacity heat exchanger 13, hot sound refrigerating machine equally also as cold engine,
Thermo-motor or heat pump use.As vascular refrigerator, hot sound refrigerating machine of the present invention can work: refrigeration machine, cold engine,
Thermo-motor, heat pump mode, the refrigeration machine given for one use in the case where given room temperature and cooling capacity heat exchanger
Which kind of operating mode, this depends on the scavenging volume ratio of compression chamber and expansion chamber.
Hot sound refrigerating machine described in above embodiments is also used as cold engine, thermo-motor or heat pump to use.With vascular
Refrigeration machine is the same, and hot sound refrigerating machine of the present invention can work: refrigeration machine, cold engine, thermo-motor, heat pump mode, for one
A given refrigeration machine, in the case where given room temperature and cooling capacity heat exchanger, using which kind of operating mode, this depends on compression
The scavenging volume of chamber and expansion chamber ratio.
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 hot sound refrigerating machine, including compressor (3) and cold head (1), the cold head (1) is by radiator (11), regenerator
(12), cooling capacity heat exchanger (13), inertia tube (14) and air reservoir (15) composition, which is characterized in that the compressor (3) uses ladder
Piston structure forms compression chamber (331) and expansion chamber (332), and the compression chamber (331) is connected with radiator (11), described swollen
Swollen chamber (332) is connected with air reservoir (15), the temperature difference of the formation room temperature to low temperature between the compression chamber (331) and expansion chamber (332).
2. a kind of hot sound refrigerating machine according to claim 1, which is characterized in that the piston of the compressor (3) is divided into rank
Scalariform is made of first order piston (311) and second level piston (312), and the cylinder of the compressor (3) is also divided into staged,
It is made of first order cylinder (321) and second level cylinder (322), so that compression chamber (331) and expansion chamber (332) are formed, it is described
The temperature difference of room temperature to low temperature is undertaken by second level piston (312) and second level cylinder (322).
3. a kind of hot sound refrigerating machine according to claim 1, which is characterized in that the low temperature refers to cryogenic temperature.
4. a kind of hot sound refrigerating machine according to claim 1, which is characterized in that the cold head (1) is multilevel structure, multistage
It is used between cold head and is connected in series or is connected in parallel.
5. a kind of hot sound refrigerating machine according to claim 4, which is characterized in that the radiator (11) of every level-one cold head is simultaneously
Be connected with compression chamber (331), the inertia tube (14) of every level-one cold head share an air reservoir (15) or respectively with individual air reservoir phase
Even, when sharing air reservoir (15), which is directly connected with expansion chamber (332), when multiple air reservoirs are set, multiple air reservoirs
It is connected simultaneously with expansion chamber (332).
6. a kind of hot sound refrigerating machine according to claim 1, which is characterized in that the hot sound refrigerating machine also starts as cold
Machine, thermo-motor or heat pump use.
7. a kind of hot sound refrigerating machine, including compressor (3) and cold head (1), the cold head (1) is by radiator (11), regenerator
(12), inertia tube (14) and air reservoir (15) composition, which is characterized in that the compressor (3) uses step piston structure, forms pressure
Contracting chamber (331) and expansion chamber (332), the compression chamber (331) are connected with radiator (11), the expansion chamber (332) and air reservoir
(15) it is connected, the temperature difference of the formation room temperature to low temperature between the compression chamber (331) and expansion chamber (332).
8. a kind of hot sound refrigerating machine according to claim 7, which is characterized in that the cold head (1) is multilevel structure, multistage
It is used between cold head and is connected in series or is connected in parallel.
9. a kind of hot sound refrigerating machine according to claim 7, which is characterized in that the piston of the compressor (3) is divided into rank
Scalariform is made of first order piston (311) and second level piston (312), and the cylinder of the compressor (3) is also divided into staged,
It is made of first order cylinder (321) and second level cylinder (322), so that compression chamber (331) and expansion chamber (332) are formed, it is described
Second level piston (312) and second level cylinder (322) are all made of thin-wall construction.
10. a kind of hot sound refrigerating machine according to claim 7, which is characterized in that the hot sound refrigerating machine is also used as cold hair
Motivation, thermo-motor or heat pump use.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710874780.6A CN109556318B (en) | 2017-09-25 | 2017-09-25 | Thermoacoustic refrigerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710874780.6A CN109556318B (en) | 2017-09-25 | 2017-09-25 | Thermoacoustic refrigerator |
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| CN109556318A true CN109556318A (en) | 2019-04-02 |
| CN109556318B CN109556318B (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710874780.6A Active CN109556318B (en) | 2017-09-25 | 2017-09-25 | Thermoacoustic refrigerator |
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| CN110200504A (en) * | 2019-05-27 | 2019-09-06 | 同济大学 | A kind of thermoacoustic type hot-cold water direct drinking machine |
| CN110617558A (en) * | 2019-08-16 | 2019-12-27 | 成都仙德科技有限公司 | Portable sound energy air conditioner refrigeration method |
| WO2020252689A1 (en) * | 2019-06-19 | 2020-12-24 | 中国科学院理化技术研究所 | Combined cycle room temperature refrigeration/heat pump double-effect system |
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| CN110617558A (en) * | 2019-08-16 | 2019-12-27 | 成都仙德科技有限公司 | Portable sound energy air conditioner refrigeration method |
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| CN109556318B (en) | 2020-07-28 |
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