CN207688709U - Heat exchanger and acoustic energy refrigeration machine - Google Patents
Heat exchanger and acoustic energy refrigeration machine Download PDFInfo
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- CN207688709U CN207688709U CN201721830985.6U CN201721830985U CN207688709U CN 207688709 U CN207688709 U CN 207688709U CN 201721830985 U CN201721830985 U CN 201721830985U CN 207688709 U CN207688709 U CN 207688709U
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- heat exchanger
- radiating fin
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- ring surface
- angle
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Abstract
A kind of heat exchanger of the utility model offer and acoustic energy refrigeration machine, heat exchanger is provided with multiple boss in circular setting and end face, boss axially protrudes the end face of heat exchanger, radial multiple first radiating fins being uniformly distributed and radially extended far from axle center are provided on the outer shroud of heat exchanger, outer ring surface narrow-gap channel is formed between two neighboring first radiating fin, the angle that the two sides of first radiating fin are formed radially is less than the angle that the two sides of outer ring surface narrow-gap channel are formed radially, radial multiple second radiating fins being uniformly distributed and radially extended towards axle center are provided in the inner ring of heat exchanger, inner ring surface narrow-gap channel is formed between two neighboring second radiating fin, the angle that the two sides of second radiating fin are formed radially is less than the angle that the two sides of inner ring surface narrow-gap channel are formed radially.By reducing empty plot ratio, the helium flow resistance in heat exchanger is controlled, the heat exchange uniformity and heat transfer effect of acoustic energy refrigeration machine are improved.
Description
Technical field
The utility model is related to technical field of refrigeration equipment more particularly to a kind of for changing in back-heating type acoustic energy refrigeration machine
Hot device and the acoustic energy refrigeration machine for using the heat exchanger.
Background technology
For small-sized acoustic energy refrigeration machine, compressed helium enters regenerator runner and compression cylinder inherently as heat exchange
Device does not need individually designed heat exchanger.But for the acoustic energy refrigeration machine of High cooling power, since heat exchange amount is larger, therefore need to configure height
Heat exchanger is imitated, and requires to reduce the helium flow resistance in slit heat exchanger as possible, and reduces the helium of slit heat exchanger
Empty volume.
U.S. Patent Application No.：US2004/0026067A1, by the propositions such as Mochizuki, title：heat
exchanger for stirling refrigerating machine,heat exchanger body,and method
Its structure of of manufacturing heat exchanger body. is to use annular corrugated fin (corrugated fin)
It is put into the donut sleeve of two different-diameters, the inner and outer ring of annular corrugated fin is welded with inner-outer sleeve respectively.It should
Method increases heat exchange area by corrugated fin, but its manufacture difficulty is larger, and corrugated fin runner is difficult to keep equal
It is even consistent, to reduce heat exchange efficiency, increase flow resistance, and the empty volume in annular space not easy to control.
Sanyo Electric Co., Ltd discloses a kind of using tool in the patent of China's application, Publication No. CN1231407A
There is the Stirling refrigerator of fin structure heat exchanger, in linking rod-crank type sterlin refrigerator, inside and outside fin to be integrated
Casting, outside has added water(-cooling) jacket.Wherein for inner sleeve with heat exchanger main body there is no using heat cooperation, thermal contact resistance can be larger,
Therefore the heat exchange area useless for making full use of inner sleeve.
Utility model content
First purpose of the utility model is to provide a kind of heat exchanger in back-heating type acoustic energy refrigeration machine, passes through reduction
Empty plot ratio controls the helium flow resistance in heat exchanger, improves the heat exchange uniformity and heat transfer effect of acoustic energy refrigeration machine, and
And convenient processing and manufacture, it is at low cost.
Second purpose of the utility model is to provide a kind of acoustic energy refrigeration machine using above-mentioned heat exchanger, improves refrigeration machine
Service efficiency, and generate good refrigeration effect.
In order to realize that first purpose of the utility model, a kind of heat exchanger of the utility model offer are arranged in circular, change
The end face of hot device is provided with multiple boss, and boss axially protrudes the end face of heat exchanger, and it is in put to be provided on the outer shroud of heat exchanger
Multiple first radiating fins that shape is uniformly distributed and separate axle center radially extends are penetrated, are formed between two neighboring first radiating fin
Outer ring surface narrow-gap channel, the angle that the two sides of the first radiating fin are formed radially are less than the both sides face diameter of outer ring surface narrow-gap channel
To the angle of formation, radial multiple second for being uniformly distributed and being radially extended towards axle center are provided in the inner ring of heat exchanger
Radiating fin, forms inner ring surface narrow-gap channel between two neighboring second radiating fin, and the two sides of the second radiating fin are radial
The angle of formation is less than the angle that the two sides of inner ring surface narrow-gap channel are formed radially.
Further scheme is that the both sides of the face of heat exchanger are both provided with boss.
Further scheme is to be located at the boss of the both sides of the face of heat exchanger in axial position one-to-one correspondence.
Further scheme is that the quantity of the first radiating fin and the second radiating fin is identical, and the first radiating fin
It is corresponded in radial position with the second radiating fin.
Further scheme is, the end face of heat exchanger is radially evenly distributed that there are four boss.
Further scheme is that heat exchanger is made of red copper material.
By said program as it can be seen that heat exchanger is by the Working medium gas of Oscillating flow and heat exchanger wall surface forced-convection heat transfer,
Inside and outside anchor ring with the larger coefficient of heat transfer, while heat exchanger is provided with the design of narrow-gap channel, considerably increases working medium gas
The contact area of body and heat exchanger, and heat exchanger is made of red copper material, has smaller thermal conduction resistance, thus heat exchanger
By reducing empty plot ratio, the helium flow resistance in heat exchanger is controlled, improves the acoustic energy refrigeration machine using the heat exchanger
The uniformity that exchanges heat and heat transfer effect, and it is simple in structure, facilitate processing and assembly.
The utility model provides a kind of manufacturing process of heat exchanger, and heat exchanger is arranged in circular, and the end face of heat exchanger is set
Multiple boss are equipped with, boss axially protrudes the end face of heat exchanger, radial be uniformly distributed is provided on the outer shroud of heat exchanger
And multiple first radiating fins radially extended far from axle center, it is logical that outer ring surface slit is formed between two neighboring first radiating fin
Road, the angle that the two sides of the first radiating fin are formed radially are less than the folder that the two sides of outer ring surface narrow-gap channel are formed radially
Angle, be provided in the inner ring of heat exchanger it is radial be uniformly distributed and towards multiple second radiating fins that axle center radially extends,
Inner ring surface narrow-gap channel, the angle that the two sides of the second radiating fin are formed radially are formed between two neighboring second radiating fin
Less than the angle that the two sides of inner ring surface narrow-gap channel are formed radially, manufacturing process includes：One mould with specific shape is provided
Tool, the red copper material that would be heated to proper temperature are squeezed into formation annulus in mold, are obtained in certain length by cutting annulus
Mesosome, uniform line is cut into inner ring surface narrow-gap channel on the inner ring surface of intermediate, and uniform line is cut on the outer ring surface of intermediate
Outer ring surface narrow-gap channel is cut out, boss is processed on the end face of intermediate.
By said program as it can be seen that the manufacturing process of heat exchanger makes heat exchanger when high-volume manufactures, easy to process, cost
It is low.
In order to realize second purpose of the utility model, the utility model provides a kind of acoustic energy refrigeration machine, including compression chamber,
Regenerator and expansion chamber, regenerator is between compression chamber and expansion chamber, wherein acoustic energy refrigeration machine further includes two heat exchange
Device, a heat exchanger is between compression chamber and regenerator, another heat exchanger is between regenerator and expansion chamber, heat exchanger
Be arranged in annular shape, the end face of heat exchanger is provided with multiple boss, and boss axially protrudes the end face of heat exchanger, heat exchanger it is outer
Radial multiple first radiating fins being uniformly distributed and separate axle center radially extends are provided on ring, two neighboring first dissipates
Outer ring surface narrow-gap channel is formed between hot fin, the angle that the two sides of the first radiating fin are formed radially is less than outer ring surface slit
The angle that the two sides in channel are formed radially is provided with radial be uniformly distributed and towards axle center radial direction in the inner ring of heat exchanger
Multiple second radiating fins extended form inner ring surface narrow-gap channel, the second heat radiating fin between two neighboring second radiating fin
The angle that the two sides of piece are formed radially is less than the angle that the two sides of inner ring surface narrow-gap channel are formed radially.
By said program as it can be seen that by reducing empty plot ratio, the helium flow resistance in heat exchanger is controlled, acoustic energy is improved
The heat exchange uniformity and heat transfer effect of refrigeration machine, improve the service efficiency of refrigeration machine.
Description of the drawings
Fig. 1 is the structure chart of the utility model heat exchanger embodiments.
Fig. 2 is the front view of the utility model heat exchanger embodiments.
Fig. 3 is enlarged drawings of the Fig. 2 at A.
Fig. 4 is the first embodiment side view of boss in the utility model heat exchanger embodiments.
Fig. 5 is the second embodiment side view of boss in the utility model heat exchanger embodiments.
Fig. 6 is the sectional view of the utility model acoustic energy refrigeration machine embodiment.
Fig. 7 is enlarged drawings of the Fig. 6 at B.
Fig. 8 is enlarged drawings of the Fig. 6 at C.
The utility model is described in further detail with reference to the accompanying drawings and embodiments.
Specific implementation mode
Referring to Fig. 1 to Fig. 3, it is arranged in circular for the heat exchanger 2 in acoustic energy refrigeration machine, the end face setting of heat exchanger 2
There are multiple boss 203, boss 203 to axially protrude the end face of heat exchanger 2, the present embodiment heat exchanger 2 is made of red copper material.It changes
Radial be uniformly distributed and far from multiple first radiating fins 201 that axle center radially extends, phase is provided on the outer shroud of hot device 2
Outer ring surface narrow-gap channel 205, the two sides radial shape of the first radiating fin 201 are formed between adjacent two the first radiating fins 201
At angle be less than the angle that is formed radially of two sides of outer ring surface narrow-gap channel 205.Be provided in the inner ring of heat exchanger 2 is in put
Shape is penetrated to be uniformly distributed and towards multiple second radiating fins 204 that axle center radially extends, two neighboring second radiating fin 204 it
Between form inner ring surface narrow-gap channel 202, the angle that the two sides of the second radiating fin 204 are formed radially is less than inner ring surface slit and leads to
The angle that the two sides in road 202 are formed radially.The quantity phase of the present embodiment the first radiating fin 201 and the second radiating fin 204
Together, and the first radiating fin 201 and the second radiating fin 204 are corresponded in radial position.
Referring to Fig. 4 and Fig. 5, there are two types of embodiment, i.e. the first embodiment is the tool of boss 203 of the present embodiment heat exchanger 2
The both sides of the face of heat exchanger 2 are both provided with boss 203 (as shown in Figure 4), and the boss 203 of both sides of the face is in axial position one
One corresponds to, and second of embodiment is that a side end face of heat exchanger 2 is provided with boss 203 (as shown in Figure 5).The present embodiment heat exchanger
2 end face is radially evenly distributed there are four boss 203.
Referring to Fig. 6 to Fig. 8, heat exchanger 2 is mounted on as hot end heat exchanger and cool end heat exchanger in acoustic energy refrigeration machine, figure
7 be position of the heat exchanger 21 as hot end heat exchanger in acoustic energy refrigeration machine, and heat exchanger 21 is located at the compression chamber of acoustic energy refrigeration machine
101 outlet the entrance of regenerator 105 between, both sides of the face setting boss 203 so that 21 both sides of heat exchanger respectively with cylinder
End face and 105 end face of regenerator form annular space, and passing in and out heat exchanger 21 for helium provides cushioning effect, reduces flow resistance.
The high temperature helium come out from compression chamber 101 is logical by entering outer ring surface narrow-gap channel 205 and inner ring surface slit after the first annular space 102
Road 202 is entered by the second annular space 104 in regenerator 105 again after exchanging heat with 21 inner and outer rings wall surface of heat exchanger.In Oscillating flow
In cyclic process, the constantly outside function of environment heat emission of heat exchanger 21.
Fig. 8 is position of the heat exchanger 22 as cool end heat exchanger in acoustic energy refrigeration machine, and heat exchanger 22 is located at regenerator 105
Outlet and expansion chamber 108 between, heat exchanger 22 is provided with a side end face of boss 203 and the exit end face shape of regenerator 105
At third annular space 106, passes in and out heat exchanger 22 for helium and provide cushioning effect, reduce flow resistance.It is come out from regenerator 105
Helium by after third annular space 106 enter outer ring surface narrow-gap channel 205 and inner ring surface narrow-gap channel 202, then flow into expansion
Chamber 108 carries out swell refrigeration, and cold is transmitted to heat exchanger 22 by low-temperature helium by inner and outer rings wall surface when reflux, to export cold.
Wherein, the angle being formed radially between the two neighboring radiating fin of heat exchanger 2 is α, the radiating fin of heat exchanger 2
The angle that is formed radially of two sides be β, the angle that the two sides of narrow-gap channel are formed radially is (alpha-beta), the gap of heat exchanger
Rate isRatio by controlling α and β can be accurately controlled the sky of the inner ring and outer rings of heat exchanger 2
Gap rate ψ, and control by the difference of adjusting (alpha-beta) the narrow-gap channel width of gas flow.
The present embodiment heat exchanger 2 by the Working medium gas of Oscillating flow and 2 wall surface forced-convection heat transfer of heat exchanger, have compared with
The big coefficient of heat transfer, while the inside and outside anchor ring of heat exchanger 2 is provided with the design of narrow-gap channel, considerably increase Working medium gas and
The contact area of heat exchanger 2, and heat exchanger 2 is made of red copper material, has smaller thermal conduction resistance, thus the present embodiment
Heat exchanger 2 controls the helium flow resistance in heat exchanger 2, the heat exchange for improving acoustic energy refrigeration machine is equal by reducing empty plot ratio
Even property and heat transfer effect, and it is simple in structure, facilitate processing and assembly.
The manufacturing process of heat exchanger 2 includes：One mold with specific shape is provided, proper temperature is then would be heated to
Red copper material is squeezed into and forms annulus in mold, and then the intermediate of certain length is obtained by cutting annulus, and in intermediate
Uniform line is cut into inner ring surface narrow-gap channel on inner ring surface, and then to be cut into outer ring surface narrow for uniform line on the outer ring surface of intermediate
Channel is stitched, finally boss is processed on the end face of intermediate, to obtain heat exchanger finished product.The present embodiment manufacturing process makes to change
The convenient processing and manufacture of hot device 2, it is at low cost.
Embodiment described above, only preferred embodiments of the utility model, be not to limit the utility model practical range,
Therefore the equivalent change or modification that all structure, feature and principles according to described in present utility model application the scope of the claims are done, it should all wrap
It includes in the utility model patent application range.
Claims (9)
1. heat exchanger, it is characterised in that：
The heat exchanger is arranged in circular, and the end face of the heat exchanger is provided with multiple boss, and the boss axially protrudes
The end face of the heat exchanger；
Radial multiple first heat dissipations being uniformly distributed and radially extended far from axle center are provided on the outer shroud of the heat exchanger
Fin forms outer ring surface narrow-gap channel, the two sides of first radiating fin between two neighboring first radiating fin
The angle being formed radially is less than the angle that the two sides of the outer ring surface narrow-gap channel are formed radially；
Radial multiple second heat dissipations being uniformly distributed and radially extended towards axle center are provided in the inner ring of the heat exchanger
Fin forms inner ring surface narrow-gap channel, the two sides of second radiating fin between two neighboring second radiating fin
The angle being formed radially is less than the angle that the two sides of the inner ring surface narrow-gap channel are formed radially.
2. heat exchanger according to claim 1, it is characterised in that：
The both sides of the face of the heat exchanger are both provided with the boss.
3. heat exchanger according to claim 2, it is characterised in that：
The boss positioned at the both sides of the face of the heat exchanger is corresponded in axial position.
4. heat exchanger according to claim 1, it is characterised in that：
First radiating fin is identical with the quantity of second radiating fin, and first radiating fin and described second
Radiating fin is corresponded in radial position.
5. heat exchanger according to any one of claims 1 to 4, it is characterised in that：
The end face of the heat exchanger is radially evenly distributed there are four the boss.
6. heat exchanger according to claim 5, it is characterised in that：
The heat exchanger is made of red copper material.
7. acoustic energy refrigeration machine, including compression chamber, regenerator and expansion chamber, the regenerator is located at the compression chamber and described swollen
Between swollen chamber, it is characterised in that：
The acoustic energy refrigeration machine further includes two heat exchangers, a heat exchanger be located at the compression chamber and the regenerator it
Between, another described heat exchanger is between the regenerator and the expansion chamber；
The heat exchanger is arranged in circular, and the end face of the heat exchanger is provided with multiple boss, and the boss axially protrudes
The end face of the heat exchanger；
Radial multiple first heat dissipations being uniformly distributed and radially extended far from axle center are provided on the outer shroud of the heat exchanger
Fin forms outer ring surface narrow-gap channel, the two sides of first radiating fin between two neighboring first radiating fin
The angle being formed radially is less than the angle that the two sides of the outer ring surface narrow-gap channel are formed radially；
Radial multiple second heat dissipations being uniformly distributed and radially extended towards axle center are provided in the inner ring of the heat exchanger
Fin forms inner ring surface narrow-gap channel, the two sides of second radiating fin between two neighboring second radiating fin
The angle being formed radially is less than the angle that the two sides of the inner ring surface narrow-gap channel are formed radially.
8. acoustic energy refrigeration machine according to claim 7, it is characterised in that：
First radiating fin is identical with the quantity of second radiating fin, and first radiating fin and described second
Radiating fin is corresponded in radial position.
9. acoustic energy refrigeration machine according to claim 7 or 8, it is characterised in that：
The heat exchanger is made of red copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721830985.6U CN207688709U (en) | 2017-12-25 | 2017-12-25 | Heat exchanger and acoustic energy refrigeration machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721830985.6U CN207688709U (en) | 2017-12-25 | 2017-12-25 | Heat exchanger and acoustic energy refrigeration machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207688709U true CN207688709U (en) | 2018-08-03 |
Family
ID=62996105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721830985.6U Withdrawn - After Issue CN207688709U (en) | 2017-12-25 | 2017-12-25 | Heat exchanger and acoustic energy refrigeration machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207688709U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225082A (en) * | 2017-12-25 | 2018-06-29 | 陕西仙童科技有限公司 | Acoustic energy refrigeration machine, heat exchanger and its manufacturing process |
-
2017
- 2017-12-25 CN CN201721830985.6U patent/CN207688709U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225082A (en) * | 2017-12-25 | 2018-06-29 | 陕西仙童科技有限公司 | Acoustic energy refrigeration machine, heat exchanger and its manufacturing process |
| CN108225082B (en) * | 2017-12-25 | 2023-09-22 | 陕西仙童科技有限公司 | Acoustic energy refrigerator |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180803 Effective date of abandoning: 20230922 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180803 Effective date of abandoning: 20230922 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |