CN111397255B - A regenerator sleeve structure and regenerator - Google Patents
A regenerator sleeve structure and regenerator Download PDFInfo
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- CN111397255B CN111397255B CN201910002851.2A CN201910002851A CN111397255B CN 111397255 B CN111397255 B CN 111397255B CN 201910002851 A CN201910002851 A CN 201910002851A CN 111397255 B CN111397255 B CN 111397255B
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- 230000008646 thermal stress Effects 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 6
- 230000035882 stress Effects 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 2
- 241000628997 Flos Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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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
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/06—Superheaters
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
本发明涉及回热器领域，提供了一种回热器套筒结构及回热器，包括：非室温换热器、室温换热器外壳和非室温换热器外壳，室温换热器外壳和非室温换热器外壳分别连接于套筒本体的两端，且室温换热器外壳、套筒本体和非室温换热器外壳为一体结构。本发明公开的回热器，包括室温换热器、非室温换热器和本回热器套筒结构，室温换热器固定于室温换热器外壳的内部，非室温换热器固定于非室温换热器外壳的内部。本发明将室温换热器外壳、套筒本体和非室温换热器外壳加工成为为一体结构，取消了之间的连接法兰，避免了因回热器与换热器之间通过法兰连接所产生的热应力增加的问题，使回热器与换热器相接处的热应力大幅度减少，提高了回热器的安全性。
The invention relates to the field of regenerators, and provides a regenerator sleeve structure and a regenerator, comprising: a non-room temperature heat exchanger, a room temperature heat exchanger shell and a non-room temperature heat exchanger shell, a room temperature heat exchanger shell and The non-room temperature heat exchanger shells are respectively connected to both ends of the sleeve body, and the room temperature heat exchanger shell, the sleeve body and the non-room temperature heat exchanger shell are integrated into one structure. The regenerator disclosed in the present invention includes a room temperature heat exchanger, a non-room temperature heat exchanger and the regenerator sleeve structure. The room temperature heat exchanger is fixed inside the shell of the room temperature heat exchanger, and the non-room temperature heat exchanger is fixed in the The interior of the room temperature heat exchanger housing. The invention processes the room temperature heat exchanger shell, the sleeve body and the non-room temperature heat exchanger shell into an integrated structure, cancels the connection flange between them, and avoids the flange connection between the regenerator and the heat exchanger. The resulting increase in thermal stress greatly reduces the thermal stress at the junction of the regenerator and the heat exchanger, thereby improving the safety of the regenerator.
Description
Technical Field
The invention relates to the field of regenerators, in particular to a regenerator sleeve structure and a regenerator.
Background
In systems such as thermoacoustic heat engines, thermoacoustic refrigerators, stirling heat engines, stirling refrigerators, G-M and other thermal compressors, the regenerator is the main place for thermal-power conversion. The invention and the development of the heat regenerator technology are the most important step in the technical development history of the heat regenerative heat engine, and the heat-work conversion efficiency of the system where the heat regenerative heat engine is located is effectively improved. As shown in fig. 1, the regenerator is usually operated between a room temperature heat exchanger 1 and a non-room temperature heat exchanger 2, and the two heat exchangers provide the temperature difference required by the operation of the regenerator, and the regenerator realizes thermal power conversion under the driving of the temperature difference. The heat regenerator is used as a core component for heat-power conversion of the system, and the safety and the service life of the heat regenerator influence the safety and the service life of the whole system. The conventional regenerator structure is shown in fig. 1, and is formed by filling regenerator fillers 4 such as silk screen and silk floss in a cylindrical sleeve body 3. The room temperature heat exchanger shell 5 and the non-room temperature heat exchanger shell 6 are respectively connected to two ends of the sleeve body 3 through connecting flanges 7, and the room temperature heat exchanger 1 and the non-room temperature heat exchanger 2 are respectively fixed inside the room temperature heat exchanger shell 5 and the non-room temperature heat exchanger shell 6. Because the both ends of sleeve body 3 among the prior art adopt flange joint fixed, can receive the restraint of flange when the sleeve warp, consequently thermal stress also can increase.
In an engine system, the non-room temperature heat exchanger is a high-temperature heat exchanger, and the temperature of a heat source of the engine is generally 900K or even higher, so that a large temperature difference exists between two ends of the heat regenerator, and the thermal deformation difference between two ends of the sleeve body is large. Similarly, in the refrigerator, the non-room temperature end heat exchanger is a cold end heat exchanger, and the two ends of the heat regenerator have large temperature difference, so that the thermal deformation of the two ends of the sleeve body is inconsistent. Fig. 2 and 3 are graphs showing thermal deformation of the regenerator due to temperature difference, fig. 2 shows wall deformation of a sleeve body in an engine system, fig. 3 shows wall deformation of a sleeve body in a refrigerator system, and enlarged schematic views are shown in the drawings. It can be seen that the outer sleeve of the regenerator is bent due to the inconsistent deformation of the two ends, so that the sleeve wall is subjected to a certain degree of shear deformation. Because the length of the regenerator is limited by the working frequency of the system, the length can not be increased at will, usually less than 10 cm, so that the thermal stress generated by the thermal deformation of the regenerator is increased rapidly along with the increase of the diameter, the bearing capacity of the wall surface is reduced rapidly, the safety performance of the system is greatly reduced, and even serious safety accidents can be caused. However, when these engines and refrigerator systems are industrially produced with a large power, an increase in diameter is inevitable. Therefore, in a high-power engine or refrigerator, it is necessary to consider the concentration of wall stress due to thermal deformation of the sleeve body. However, there is no report on the deterioration of the safety performance of the regenerator due to the thermal stress concentration. If the structure of the regenerator is improved to improve the safety of the regenerator, the safety and the service life of the systems are obviously improved, and the regenerator is very beneficial to market popularization and application of the systems.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a sleeve structure of a heat regenerator and the heat regenerator, and solves the problems that in the prior art, the heat deformation difference of two ends of a sleeve body wall is large due to large temperature gradients of two ends of the heat regenerator, so that the sleeve wall is subjected to certain shearing deformation, the thermal stress concentration exists on the wall surface of the sleeve body, and the safety of the heat regenerator is reduced.
(II) technical scheme
In order to solve the above technical problem, the present invention provides a regenerator sleeve structure, including: the sleeve comprises a sleeve body, a room temperature heat exchanger shell and a non-room temperature heat exchanger shell, wherein the room temperature heat exchanger shell and the non-room temperature heat exchanger shell are respectively connected to two ends of the sleeve body, and the room temperature heat exchanger shell, the sleeve body and the non-room temperature heat exchanger shell are of an integrated structure.
Wherein, include: the sleeve is characterized by further comprising a clamp, wherein the clamp is tightly sleeved on the outer side wall of the sleeve body along the axial direction of the sleeve body.
The clamp is further tightly sleeved on the outer side walls of the room temperature heat exchanger shell and the non-room temperature heat exchanger shell respectively.
Wherein, the clamp is a plurality of, and adjacent the clamp is followed the axial direction of sleeve body is closely arranged.
Wherein, the outer lane width of clamp is less than the inner circle width of clamp.
Wherein the thickness of the clamp is equal to the thickness of the sleeve body.
And flange connecting holes are respectively formed in the end part of the room temperature heat exchanger shell and the end part of the non-room temperature heat exchanger shell.
The sleeve comprises a sleeve body and is characterized by further comprising a buffer area, wherein a groove is formed in the inner side of the sleeve body, the buffer area is arranged in the groove, and a gap is reserved between the buffer area and the sleeve body.
Wherein, the buffer zone is a buffer column or a buffer block.
The invention also discloses a regenerator, comprising: the heat regenerator comprises a room temperature heat exchanger, a non-room temperature heat exchanger and a regenerator sleeve structure, wherein the room temperature heat exchanger is fixed inside a room temperature heat exchanger shell, and the non-room temperature heat exchanger is fixed inside the non-room temperature heat exchanger shell.
(III) advantageous effects
According to the sleeve structure of the heat regenerator and the heat regenerator provided by the invention, the shell of the room temperature heat exchanger, the sleeve body and the shell of the non-room temperature heat exchanger are processed into an integral structure, a connecting flange between the two is eliminated, the problem of thermal stress increase caused by flange connection between the heat regenerator and the heat exchanger is avoided, the thermal stress at the joint of the heat regenerator and the heat exchanger is greatly reduced, and the safety of the heat regenerator is improved.
Drawings
FIG. 1 is a schematic diagram of a regenerator of the prior art;
FIG. 2 is a schematic diagram of wall deformation of a sleeve body in an engine system according to the prior art;
FIG. 3 is a schematic diagram of wall deformation of a sleeve body in a prior art refrigerator system;
FIG. 4 is a longitudinal sectional view of example 1 of the present invention;
FIG. 5 is a longitudinal sectional view of example 2 of the present invention;
FIG. 6 is a schematic structural view of example 3 of the present invention;
fig. 7 is a partial enlarged view of the structure a in fig. 6.
In the figure, 1, a room temperature heat exchanger; 2. a non-room temperature heat exchanger; 3. a sleeve body; 4. a regenerator charge; 5. a room temperature heat exchanger shell; 6. a non-room temperature heat exchanger housing; 7. a connecting flange; 8. clamping a hoop; 10. an O-shaped sealing ring; 12. a buffer area.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
as shown in fig. 4, the present invention discloses a regenerator sleeve structure, comprising: the sleeve comprises a sleeve body 3, a room temperature heat exchanger shell 5 and a non-room temperature heat exchanger shell 6, wherein the room temperature heat exchanger shell 5 and the non-room temperature heat exchanger shell 6 are respectively connected to two ends of the sleeve body 3, and the room temperature heat exchanger shell 5, the sleeve body 3 and the non-room temperature heat exchanger shell 6 are of an integrated structure.
Based on the sleeve structure of the regenerator in embodiment 1, this embodiment further discloses a regenerator, including: the heat regenerator comprises a room temperature heat exchanger 1, a non-room temperature heat exchanger 2 and a regenerator sleeve structure according to the embodiment, wherein the room temperature heat exchanger 1 is fixed inside a room temperature heat exchanger shell 5, and the non-room temperature heat exchanger 2 is fixed inside a non-room temperature heat exchanger shell 6.
Specifically, the sleeve body 3 is a hollow cylinder, and the regenerator filler 4 is filled inside the sleeve body 3.
Specifically, in the prior art, two ends of the sleeve body 3 are fixedly connected by flanges, and the sleeve is constrained by the flanges when deformed, so that the thermal stress is increased, in the embodiment, the sleeve body 3, the room temperature heat exchanger shell 5 and the non-room temperature heat exchanger shell 6 are processed into an integrated structure, and the room temperature heat exchanger 1 and the non-room temperature heat exchanger 2 are respectively fixed inside the room temperature heat exchanger shell 5 and the non-room temperature heat exchanger shell 6; or the room temperature heat exchanger shell 5 and the non-room temperature heat exchanger shell 6 are removed, the length of the sleeve body 3 is prolonged, and the room temperature heat exchanger 1 and the non-room temperature heat exchanger 2 are fixed at two ends inside the sleeve body 3, which are substantially flange connections at the joint of the sleeve body 3. In the embodiment, because no flange constraint exists among the sleeve body 3, the room temperature heat exchanger shell 5 and the non-room temperature heat exchanger shell 6, the thermal stress at the joint of the regenerator and the room temperature heat exchanger 1 and the non-room temperature heat exchanger 2 is greatly reduced.
The end part of the room temperature heat exchanger shell 5 and the end part of the non-room temperature heat exchanger shell 6 are respectively provided with a flange connecting hole for connecting the room temperature heat exchanger 1 with an indoor device, and the non-room temperature heat exchanger 2 with an outdoor device.
The regenerator sleeve structure and the regenerator provided by the embodiment process the room temperature heat exchanger shell, the sleeve body and the non-room temperature heat exchanger shell into an integral structure, cancel the connecting flange between the two, avoid the problem of thermal stress increase caused by flange connection between the regenerator and the heat exchanger, greatly reduce the thermal stress at the joint of the regenerator and the heat exchanger, and improve the safety of the regenerator.
Example 2:
this embodiment is substantially the same as embodiment 1, and for the sake of brevity of description, in the description process of this embodiment, the same technical features as embodiment 1 are not described again, and only differences between this embodiment and embodiment 1 are explained:
in the embodiment, the sleeve body 3 is modified on the basis of the embodiment 1, and other technical characteristics are not changed.
For example, a wall of the sleeve body 3 with a radius R, a length L and a wall thickness delta at a system pressure p0The stress condition of (2) is as follows: axial wall surface force per unit area
Radial wall surface force per unit area
It can be seen that the wall of the sleeve body 3 is subjected to twice the force in the radial direction as in the axial direction. However, when we design the structure of the sleeve body 3, the axial direction and the radial direction of the sleeve wall need to meet the stress requirement, so that there is a large stress margin in the axial direction when we design the outer sleeve of the conventional regenerator. If only axial forces of the sleeve body 3 are considered, the wall thickness of the cylindrical sleeve will be much smaller than the conventional design value.
As shown in fig. 5, the present embodiment provides a design method for improving the radial rigidity of the wall surface of the sleeve body 3 by using the hoop 8: this embodiment includes clamp 8, clamp 8 is followed sleeve body 3's axial direction closely overlaps and is located sleeve body 3's lateral wall. Preferably, the clamp 8 is further closely sleeved on the outer side walls of the room temperature heat exchanger shell 5 and the non-room temperature heat exchanger shell 6 respectively. Preferably, the clamping bands 8 are multiple, and the adjacent clamping bands 8 are closely arranged along the axial direction of the sleeve body 3. Preferably, the width of the outer ring of the clamp 8 is smaller than the width of the inner ring of the clamp 8. The thickness of the clamp 8 is equal to the thickness of the sleeve body 3.
Based on the sleeve structure of the regenerator in embodiment 2, this embodiment further discloses a regenerator, including: the heat regenerator comprises a room temperature heat exchanger 1, a non-room temperature heat exchanger 2 and a regenerator sleeve structure according to the embodiment, wherein the room temperature heat exchanger 1 is fixed inside a room temperature heat exchanger shell 5, and the non-room temperature heat exchanger 2 is fixed inside a non-room temperature heat exchanger shell 6.
Specifically, the sleeve body 3 is a hollow cylinder, and the regenerator filler 4 is filled inside the sleeve body 3.
Specifically, the hoop 8 of the present embodiment is sleeved on the outer wall surface of the sleeve body 3, and the hoop 8 is tightly fitted with the outer wall surface of the sleeve body 3; the adjacent hoops 8 and 8 are closely arranged to cover the whole sleeve body 3 and the outer wall surfaces of the room temperature heat exchanger shell 5 and the non-room temperature heat exchanger shell 6; the width of the outer ring of the hoop 8 is slightly smaller than that of the inner ring, and as shown in the sectional view of fig. 4, the cross section of the hoop 8 is in a trapezoidal structure so as to prevent the hoops 8 from being extruded with each other when the heat retainer is thermally deformed; the thickness of the clamp 8 is generally equal to the wall thickness of the sleeve body 3; the radial direction meets the allowable stress requirement through the trapezoidal clamping hoop 8. The thickness of the sleeve body 3 of the present embodiment is reduced, and the stress caused by the same deformation to avoid bending is also reduced. Meanwhile, the sleeve hoop 8 can also give a certain pressure to the inner sleeve body 3, so that the thermal deformation difference of two ends of the wall of the sleeve body 3 can be reduced, and the stress concentration of the wall of the sleeve body 3 caused by the thermal deformation difference is reduced. Adopt radial cross-section to be trapezoidal ring shape sleeve clamp 8, can prevent that sleeve body 3 from arousing when thermal deformation to extrude each other between clamp 8, leading to stress concentration's phenomenon. When the structure of the sleeve body 3 is designed, the working pressure and the working temperature of the sleeve body 3 are considered, and the wall thickness of the sleeve body 3, the width of the sleeve hoop 8 and the base angle of the trapezoid cross section are reasonably designed. The stress concentration of the wall surface of the regenerator caused by thermal deformation is minimized while the working requirement of the system is met.
The regenerator sleeve structure and the regenerator provided by the embodiment process the room temperature heat exchanger shell, the sleeve body and the non-room temperature heat exchanger shell into an integral structure, cancel the connecting flange between the two, avoid the problem of thermal stress increase caused by flange connection between the regenerator and the heat exchanger, greatly reduce the thermal stress at the joint of the regenerator and the heat exchanger, and improve the safety of the regenerator. Furthermore, the annular sleeve clamp with the trapezoidal radial section is sleeved outside the sleeve body, so that the thermal deformation difference at two ends of the wall of the sleeve body can be reduced, and the phenomenon of stress concentration caused by mutual extrusion between the clamps when the sleeve body is subjected to thermal deformation can be prevented.
Example 3:
as shown in fig. 6 and 7, this embodiment is substantially the same as embodiment 2, and for the sake of brevity of description, in the description process of this embodiment, the same technical features as embodiment 2 are not described again, and only the differences between this embodiment and embodiment 2 are explained:
the embodiment is improved on the basis of the embodiment 2, and the embodiment further comprises a buffer area 12, a groove is formed in the inner side of the sleeve body 3, the buffer area 12 is arranged in the groove, and a gap is reserved between the buffer area 12 and the sleeve body 3.
Wherein, the buffer area 12 is a buffer column or a buffer block. The technical personnel in the field can select other buffer devices according to the actual situation to realize the effect under the buffering.
The embodiment selects the buffer column. The inner wall of the buffer column is thin, the thickness of the buffer column is 1-2 mm, and a small distance of 1-2 mm is reserved between the buffer column and the regenerator sleeve body 3. The buffer column is close to the end of the non-room temperature heat exchanger 2 and is fixedly connected with the sleeve body 3. A small gap is reserved between the buffer column and the room temperature heat exchanger shell 5, so that the working medium gas in the heat regenerator enters a gap between the buffer column and a heat regenerator sleeve to influence the work of the heat regenerator. If the gap is not easy to manufacture in actual operation, the O-shaped sealing ring 10 can be adopted for sealing so as to reduce the gap between the inner wall of the sleeve and the regenerator sleeve where the working medium gas enters. Such a structure has a relatively significant effect on reducing the thermal stress concentration of the system in the engine. Because the regenerator charge deforms due to the temperature gradient (as shown in fig. 2 and 3), the regenerator charge expands and deforms near the non-room temperature heat exchanger 2. The thermal stress caused by the deformation is buffered by the buffer column with the structure, so that the deformation stress can not be transferred to the regenerator sleeve, the radial thermal stress on the regenerator sleeve body can be reduced, namely, the stress concentration of the regenerator sleeve body is reduced, and the purpose of increasing the system safety is achieved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A regenerator sleeve structure, comprising: the sleeve comprises a sleeve body (3), a room temperature heat exchanger shell (5) and a non-room temperature heat exchanger shell (6), wherein the room temperature heat exchanger shell (5) and the non-room temperature heat exchanger shell (6) are respectively connected to two ends of the sleeve body (3), and the room temperature heat exchanger shell (5), the sleeve body (3) and the non-room temperature heat exchanger shell (6) are of an integrated structure;
the sleeve is characterized by further comprising a hoop (8), wherein the hoop (8) is tightly sleeved on the outer side wall of the sleeve body (3) along the axial direction of the sleeve body (3);
the clamp (8) is also respectively and tightly sleeved on the outer side walls of the room temperature heat exchanger shell (5) and the non-room temperature heat exchanger shell (6);
the clamp (8) is a plurality of, and adjacent the clamp (8) is followed the axial direction of sleeve body (3) closely arranges, the radial cross-section of clamp is trapezoidal.
2. The regenerator sleeve structure of claim 1, wherein the outer circumference of the band (8) has a smaller width than the inner circumference of the band (8).
3. Regenerator sleeve structure according to claim 2, characterized in that the thickness of the clip (8) is equal to the thickness of the sleeve body (3).
4. The regenerator sleeve structure of claim 1, wherein the ends of the room temperature heat exchanger housing (5) and the ends of the non-room temperature heat exchanger housing (6) are provided with flange connection holes, respectively.
5. The regenerator sleeve structure of claim 2, further comprising a buffer zone (12), wherein the inner side of the sleeve body (3) is provided with a groove, the buffer zone (12) is arranged in the groove, and the buffer zone (12) is spaced from the sleeve body (3).
6. The regenerator sleeve structure of claim 5, wherein the buffer zone (12) is a buffer post or a buffer block.
7. A regenerator, comprising: -a room temperature heat exchanger (1), -a non-room temperature heat exchanger (2) and-a regenerator sleeve structure according to any of claims 1-6, the room temperature heat exchanger (1) being fixed to the inside of the room temperature heat exchanger housing (5) and the non-room temperature heat exchanger (2) being fixed to the inside of the non-room temperature heat exchanger housing (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910002851.2A CN111397255B (en) | 2019-01-02 | 2019-01-02 | A regenerator sleeve structure and regenerator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910002851.2A CN111397255B (en) | 2019-01-02 | 2019-01-02 | A regenerator sleeve structure and regenerator |
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| CN111397255A CN111397255A (en) | 2020-07-10 |
| CN111397255B true CN111397255B (en) | 2021-10-29 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6282264A (en) * | 1985-10-04 | 1987-04-15 | Mitsubishi Electric Corp | Heat exchanger for stirling engine |
| CN1417544A (en) * | 2001-11-05 | 2003-05-14 | 富士电机株式会社 | Pulse-tube low temperature cooler |
| JP2006118728A (en) * | 2004-10-19 | 2006-05-11 | Daikin Ind Ltd | Thermoacoustic refrigerator |
| CN101749882A (en) * | 2009-12-25 | 2010-06-23 | 河北农业大学 | Sleeve motion type stirling refrigerating device |
| CN105115182A (en) * | 2015-09-25 | 2015-12-02 | 中国科学院上海技术物理研究所 | Monopole coaxial pulse tube refrigeration device of annular pulse tube structure and design method thereof |
-
2019
- 2019-01-02 CN CN201910002851.2A patent/CN111397255B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6282264A (en) * | 1985-10-04 | 1987-04-15 | Mitsubishi Electric Corp | Heat exchanger for stirling engine |
| CN1417544A (en) * | 2001-11-05 | 2003-05-14 | 富士电机株式会社 | Pulse-tube low temperature cooler |
| JP2006118728A (en) * | 2004-10-19 | 2006-05-11 | Daikin Ind Ltd | Thermoacoustic refrigerator |
| CN101749882A (en) * | 2009-12-25 | 2010-06-23 | 河北农业大学 | Sleeve motion type stirling refrigerating device |
| CN105115182A (en) * | 2015-09-25 | 2015-12-02 | 中国科学院上海技术物理研究所 | Monopole coaxial pulse tube refrigeration device of annular pulse tube structure and design method thereof |
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