CN110617649A - Heat circulation system of rotary room temperature magnetic refrigerator - Google Patents
Heat circulation system of rotary room temperature magnetic refrigerator Download PDFInfo
- Publication number
- CN110617649A CN110617649A CN201910848244.8A CN201910848244A CN110617649A CN 110617649 A CN110617649 A CN 110617649A CN 201910848244 A CN201910848244 A CN 201910848244A CN 110617649 A CN110617649 A CN 110617649A
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- Prior art keywords
- magnetic
- magnetic field
- electromagnetic valve
- bed
- room temperature
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- 239000000126 substance Substances 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 239000000178 monomer Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 8
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- 239000003507 refrigerant Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 7
- 238000005057 refrigeration Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- 230000005415 magnetization Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005347 demagnetization Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
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
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
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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
- F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
- F25B2321/002—Details of machines, plants or systems, using electric or magnetic effects by using magneto-caloric effects
- F25B2321/0022—Details of machines, plants or systems, using electric or magnetic effects by using magneto-caloric effects with a rotating or otherwise moving magnet
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
The invention discloses a heat cycle system of a rotary room temperature magnetic refrigerator, which comprises: a double-sided magnetic field, a magnetic working medium bed, heat exchange equipment and a rotating shaft; the double-sided magnetic field is provided with a rotating shaft at the center, the rotating shaft is connected to the rack, and the double-sided magnetic field is provided with two mirror-symmetric magnetic field air gaps; the magnetic work medium bed is fixed around the frame and is provided with a cold port, a first hot port and a second hot port, and the magnetic work medium bed comprises two groups of magnetic work medium bed single bodies; the heat exchange apparatus includes: the cooling system comprises a radiator, a cold chamber, a pump, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve and a fourth electromagnetic valve; the cold ports of the two magnetic working medium beds are connected with the cold chamber through pipelines, and the first hot ports of the two magnetic working medium beds are respectively connected with the pump through pipelines; the second hot ports of the two magnetic working substance beds are respectively connected with the same end of the radiator through a pipeline, and the other end of the radiator is connected with the pump through a pipeline. The invention reduces the processing and maintenance cost and improves the operation reliability of the rotary refrigerator.
Description
Technical Field
The invention relates to a magnetic refrigeration technology, in particular to a heat circulation system of a rotary room temperature magnetic refrigerator.
Background
At present, magnetic refrigerators can be classified into reciprocating type and rotary type according to the operation mode of a magnetic field. Wherein, the reciprocating operation frequency is low, and the refrigeration efficiency is difficult to improve; the rotary magnetic refrigerator generally refers to a refrigerator in which a magnetic field or a refrigerating bed rotates, and has high rotation speed and relatively strong refrigerating capacity, so that the rotary magnetic refrigerator is the most promising magnetic refrigerator for industrialization and application to actual life.
The magnetic field system of rotary magnetic refrigerator is composed of two magnets and central magnetic conductive material, and the magnetic working medium bed is multi-groove structure. Because the magnetic field is static and the magnetic working medium bed rotates, the heat exchange system is very complex, the manufacturing cost is high, the subsequent disassembly and assembly are difficult, and the maintenance is inconvenient.
Disclosure of Invention
The invention solves the technical problem of providing a heat circulation system of a rotary room temperature magnetic refrigerator, which reduces the processing and maintenance cost and improves the operation reliability of the rotary refrigerator.
The technical scheme is as follows:
a rotary room temperature magnetic refrigerator thermal cycle system comprising: a double-sided magnetic field, a magnetic working medium bed, heat exchange equipment and a rotating shaft; the double-sided magnetic field is provided with a rotating shaft at the center, the rotating shaft is connected to the rack, and the double-sided magnetic field is provided with two mirror-symmetric magnetic field air gaps; the magnetic working medium bed is fixed around the frame and is provided with a cold port, a first hot port and a second hot port; the magnetic work bed comprises two groups of magnetic work bed monomers, the magnetic work bed monomers in the same group are connected in parallel, the magnetic work bed monomers in different groups are connected in series, the magnetic work bed monomers are arc-shaped, and the magnetic work bed monomers are positioned on a rotating track of a magnetic field air gap; the heat exchange apparatus includes: the cooling system comprises a radiator, a cold chamber, a pump, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve and a fourth electromagnetic valve; the cold ports of the two magnetic working substance beds are respectively connected with the cold chamber through pipelines, the first hot ports of the two magnetic working substance beds are respectively connected with the pump through pipelines, and the first electromagnetic valve and the second electromagnetic valve are respectively arranged on the pipeline between the first hot port and the pump; the second hot ports of the two magnetic working beds are connected with the same end of the radiator through a pipeline, the third electromagnetic valve and the fourth electromagnetic valve are respectively arranged on the pipeline between the second hot ports and the radiator, and the other end of the radiator is connected with the pump through a pipeline.
Further, the double-sided magnetic field is a C-shaped magnetic field at the magnetic field air gap, and the structure comprises: the magnetic block array comprises a plurality of magnetic single bodies, and the magnetic single bodies are in hexahedral structures; the magnetic single bodies are arranged on the inner wall surface of the C-shaped structure, a magnetic field air gap is formed on the inner side of the opening of the C-shaped structure, and the position of the magnetic field air gap is opposite to the opening.
Further, the material of the magnetic monomer 13 is NdFeB magnet.
Further, the length of the single magnetic media bed is smaller than the length of the magnetic field air gap.
Further, the magnetic working medium bed is filled with magnetic refrigeration material.
Furthermore, the yoke is in a symmetrical fan-shaped structure, and the magnetic block array is fixed at a position close to the arc-shaped edge of the fan-shaped structure.
Further, each group of magnetic working medium bed comprises two single magnetic working medium bed bodies.
The invention has the technical effects that:
the invention uses a double-sided magnetic field system to statically fix the magnetic working medium bed around the frame. The heat circulation system and the operation mode of the rotary room temperature magnetic refrigerator adopt the design scheme of magnetic field rotation and static magnetic working medium bed, thereby greatly improving the rotation frequency of the refrigerator, indirectly improving the refrigerating capacity, simultaneously greatly simplifying the complexity of the heat exchange system due to the static magnetic working medium bed, saving the manufacturing cost, improving the operation reliability of the refrigerator, and being convenient for subsequent disassembly and simple in maintenance.
Drawings
FIG. 1 is a schematic diagram of the operation of a heat cycle system of a rotary room temperature magnetic refrigerator according to the present invention;
FIG. 2 is a schematic diagram of the structure of the two-sided magnetic field of the present invention;
FIG. 3 is a magnetic field diagram of a two-sided magnetic field in the present invention.
Detailed Description
The following description sufficiently illustrates specific embodiments of the invention to enable those skilled in the art to practice and reproduce it.
Fig. 1 is a schematic diagram of the operation of the heat cycle system of the rotary room temperature magnetic refrigerator according to the present invention.
A thermal cycle system of a rotary room temperature magnetic refrigerator, comprising: a double-sided magnetic field 1, a magnetic working medium bed 2, a heat exchange device 3, a frame and a rotating shaft 4.
FIG. 2 is a schematic diagram of the structure of a double-sided magnetic field 1 according to the present invention; fig. 3 is a schematic diagram of the magnetic field of the double-sided magnetic field 1 of the present invention.
The double-sided magnetic field 1 is provided with a rotating shaft 4 at the center, the rotating shaft 4 is connected to the rack, the double-sided magnetic field 1 is provided with two magnetic field air gaps 11 in mirror symmetry, the double-sided magnetic field 1 rotates during working, and the magnetic field air gaps 11 periodically penetrate through the magnetic work bed 2 and are used for magnetizing the magnetic work bed 2 in the magnetic field air gaps 11. The double-sided magnetic field 1 is assembled by adopting a Halbach rotation theory. The double-sided magnetic field 1 is used for alternately magnetizing 4 magnetic working substance beds 2 arranged around the machine frame under the action of the driving system.
The double-sided magnetic field 1 is a C-shaped magnetic field at the magnetic field air gap 11, and the structure comprises: yoke 12, magnetic monomer 13. The arrow direction in the figure is the magnetic field direction of the magnetic unit 13.
The yoke 12 functions in two ways: (1) a fixed magnetic block; (2) the magnetic field is shielded. The yoke 12 is of a C-shaped structure, the magnetic block array is fixed in the C-shaped structure and comprises a plurality of magnetic single bodies 13, and the magnetic single bodies 13 are of hexahedral structures; the plurality of magnetic single bodies 13 are installed on the inner wall surface of the C-shaped structure, a magnetic field air gap 11 is formed inside the opening of the C-shaped structure, and the position of the magnetic field air gap 11 is opposite to the opening. The material of the magnetic monomer 13 is NdFeB magnet. In the plurality of magnetic units 13, the magnetization angle of each magnetic unit 13 is different, and after the plurality of magnetic units 13 are assembled, the magnetic block array forms two C-shaped magnetic fields. The angle between the magnetization directions of two adjacent magnetic monomers 13 is 45 °. The 7 magnetic monomers 13 are assembled in sequence, and a magnetic field with certain strength is generated in the magnetic field air gap 11. The assembly of the magnetic monomer 13 is based on the Halbach rotation theory, and the assembly sequence of the magnetic monomer 13 with the horizontal right positive and the C-shaped magnetic field is as follows: 45 degrees, 90 degrees, 135 degrees, 180 degrees, 225 degrees, 90 degrees and 135 degrees. The angle of the magnetic field of the 4 magnetic single bodies 13 close to the opening forms an angle of 45 degrees with the axis, and the angle is opposite to the direction, and the thickness is smaller than that of the other magnetic single bodies 13. The yoke 12 can be designed in various shapes to accommodate different rotary room temperature magnetic refrigerators. In the preferred embodiment, the yoke 12 is a symmetrical fan-shaped structure, and the magnetic block array is fixed near the arc-shaped edge of the fan-shaped structure.
When the magnetic field generator is used, the assembled double-sided magnetic field 1 is arranged on a rack, and the rotating shaft 4 is connected with a motor. 4 magnetic working medium bed units 21 are arranged on the rotating track of the magnetic field air gap 11 around the frame. When the C-shaped magnetic field is driven by the motor to rotate, 2 magnetic working medium bed single bodies 21 enter the magnetic field air gap 11 to be magnetized and release heat outwards at the same time; in addition, 2 magnetic medium bed single bodies 21 leave the magnetic field air gap 11 for demagnetization, and refrigeration is generated.
The magnetic working medium bed 2 is fixed around the frame, heats and refrigerates by magnetization and demagnetization, the magnetic working medium bed 2 is static relative to the double-sided magnetic field 1, and the magnetic working medium bed 2 is provided with a cold port, a first hot port and a second hot port. The magnetic work bed 2 comprises two groups of magnetic work bed single bodies 21, the two magnetic work bed single bodies 21 in the same group are connected in parallel, and the magnetic work bed single bodies 21 in different groups are connected in series. The magnetic work medium bed single body 21 is arc-shaped, and the magnetic work medium bed single body 21 is positioned on the rotating track of the magnetic field air gap 11. The length of the magnetic work substance bed 2 is less than the length of the magnetic field air gap 11, so that the whole magnetic work substance bed 2 can be uniformly magnetized during magnetization. The magnetic working medium bed 2 is filled with magnetic refrigeration materials, and the shape of the magnetic refrigeration materials is spherical particles, flaky particles or irregular particles and the like.
Under the action of the pump 33, the heat exchange liquid firstly flows through the two magnetic work bed single bodies 21 without the magnetic field (the two magnetic work bed single bodies 21 are connected in parallel), then passes through the cooling chamber 32, then passes through the two magnetic work bed single bodies 21 with the magnetic field (the two groups of magnetic work bed single bodies 21 without the magnetic field and with the magnetic field are integrally connected in series), and finally enters the radiator.
The heat exchange device 3 is used for leading out the heat and the cold generated by the magnetic working medium bed 2, and the heat and the cold are led out through the heat exchange liquid. The cold energy alternately generated in the magnetic work bed 2 is transmitted to the cold room 32, and the generated heat is transmitted to the radiator 31. The heat exchange device 3 comprises: radiator 31, cold chamber 32, pump 33, first solenoid valve 34, second solenoid valve 35, third solenoid valve 36, fourth solenoid valve 37. Both the radiator 31 and the cold chamber 32 belong to heat exchangers. The cold ports of the two magnetic work substance beds 2 are respectively connected with the cold chamber 32 through pipelines, the first hot ports of the two magnetic work substance beds 2 are respectively connected with the pump 33 through pipelines, and the first electromagnetic valve 34 and the second electromagnetic valve 35 are respectively arranged on the pipelines between the first hot ports of the two magnetic work substance beds 2 and the pump 33; the second hot ports of the two magnetic work beds 2 are respectively connected with the same end of the radiator 31 through a pipeline, the third electromagnetic valve 36 and the fourth electromagnetic valve 37 are respectively arranged on the pipeline between the second hot ports of the two magnetic work beds 2 and the radiator 31, and the other end of the radiator 31 is connected with the pump 33 through a pipeline. The two connection ports of the cold chamber 32 are designated S, T.
The working process of the heat cycle system of the rotary room temperature magnetic refrigerator is as follows:
1. before operation, the double-sided magnetic field 1 is installed on a rack, and a driving part is installed; fixing the magnetic working medium bed 2 around the frame, and finally connecting the heat exchange device 3;
2. when the magnetic field air gap 11 just rotates to the magnetic work bed 2 which is vertically arranged, the magnetic refrigeration materials in the two magnetic work bed single bodies 21 are completely magnetized to generate heat; at this time, the magnetic field air gap 11 completely leaves the 2 magnetic work bed single bodies 21 of the other magnetic work bed 2, and the 2 magnetic work bed single bodies 21 are completely demagnetized to generate cold energy. At this time, the second electromagnetic valve 35 and the fourth electromagnetic valve 37 at the water outlet end of the pump 33 are opened simultaneously, and the heat exchange liquid enters the transverse magnetic work bed 2 through the second electromagnetic valve 35, takes away the generated cold and enters the cold chamber through the T side of the cold chamber 32. Then flows out from the side S of the cold chamber, enters the longitudinal magnetic working medium bed 2, takes away the heat generated by the magnetic working medium bed 2, enters the radiator 31 and finally returns to the water inlet of the pump 33 to form a complete cycle.
3. When the magnetic field air gap 11 rotates to cover the magnetic work medium bed single bodies 21, the two magnetic work medium bed single bodies 21 are magnetized to generate heat; in addition, 2 magnetic media bed single bodies 21 are completely demagnetized to generate cold energy. At the moment, the first electromagnetic valve 34 and the third electromagnetic valve 36 of the electromagnetic valves are opened simultaneously, the heat exchange liquid enters the magnetic working medium bed 2, cold energy is brought into the cold chamber through the S side of the cold chamber 32, then the cold energy enters the magnetic working medium bed 2 through the T side, heat generated by the cold energy is brought into the radiator 31, and finally the heat returns to the water inlet of the pump 33, so that complete circulation is formed.
4. When the magnetic field air gap 11 rotates to a position where the magnetic work bed single body 21 is not completely covered, the heat exchange liquid needs to enter the magnetic work bed 2, at this time, the first electromagnetic valve 34, the second electromagnetic valve 35, the third electromagnetic valve 36, and the fourth electromagnetic valve 37 are simultaneously opened, the heat exchange liquid enters the radiator 31 through the pump 33, and finally enters the water inlet of the pump 33, so that circulation is completed.
The invention adopts the design scheme of magnetic field rotation and static magnetic working medium bed, greatly improves the rotation frequency of the refrigerator, indirectly improves the refrigerating capacity, and simultaneously, the static magnetic working medium bed 2 can greatly simplify the complexity of a heat exchange system and a heat exchange liquid flow path, saves the manufacturing cost, improves the operation reliability of the refrigerator, and has convenient subsequent debugging and simple maintenance.
The terminology used herein is for the purpose of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (7)
1. A rotary room temperature magnetic refrigerator thermal cycle system, comprising: a double-sided magnetic field, a magnetic working medium bed, heat exchange equipment and a rotating shaft; the double-sided magnetic field is provided with a rotating shaft at the center, the rotating shaft is connected to the rack, and the double-sided magnetic field is provided with two mirror-symmetric magnetic field air gaps; the magnetic working medium bed is fixed around the frame and is provided with a cold port, a first hot port and a second hot port; the magnetic work bed comprises two groups of magnetic work bed monomers, the magnetic work bed monomers in the same group are connected in parallel, the magnetic work bed monomers in different groups are connected in series, the magnetic work bed monomers are arc-shaped, and the magnetic work bed monomers are positioned on a rotating track of a magnetic field air gap; the heat exchange apparatus includes: the cooling system comprises a radiator, a cold chamber, a pump, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve and a fourth electromagnetic valve; the cold ports of the two magnetic working substance beds are respectively connected with the cold chamber through pipelines, the first hot ports of the two magnetic working substance beds are respectively connected with the pump through pipelines, and the first electromagnetic valve and the second electromagnetic valve are respectively arranged on the pipeline between the first hot port and the pump; the second hot ports of the two magnetic working beds are connected with the same end of the radiator through a pipeline, the third electromagnetic valve and the fourth electromagnetic valve are respectively arranged on the pipeline between the second hot ports and the radiator, and the other end of the radiator is connected with the pump through a pipeline.
2. A rotary room temperature magnetic refrigerator thermal cycle system of claim 1 wherein the double-sided magnetic field is a C-shaped magnetic field at the magnetic field air gap and is configured to include: the magnetic block array comprises a plurality of magnetic single bodies, and the magnetic single bodies are in hexahedral structures; the magnetic single bodies are arranged on the inner wall surface of the C-shaped structure, a magnetic field air gap is formed on the inner side of the opening of the C-shaped structure, and the position of the magnetic field air gap is opposite to the opening.
3. The thermal cycle system of a rotary type room temperature magnetic refrigerator according to claim 1, wherein the material of the magnetic unit 13 is NdFeB magnet.
4. A rotary room temperature magnetic refrigerator thermal cycle system of claim 1, wherein the length of the magnetic media bed unit is less than the length of the magnetic field air gap.
5. A rotary room temperature magnetic refrigerator heat cycle system of claim 1 wherein the magnetic media bed is packed with a magnetic refrigerant material.
6. A rotary room temperature magnetic refrigerator heat cycle system as claimed in claim 2, wherein the yoke is constructed in a symmetrical fan-shaped structure, and the magnetic block array is fixed at a position close to the arc-shaped side of the fan-shaped structure.
7. A rotary room temperature magnetic refrigerator thermal cycle system of claim 1, wherein each set of magnetic media beds includes two magnetic media bed units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910848244.8A CN110617649A (en) | 2019-09-09 | 2019-09-09 | Heat circulation system of rotary room temperature magnetic refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910848244.8A CN110617649A (en) | 2019-09-09 | 2019-09-09 | Heat circulation system of rotary room temperature magnetic refrigerator |
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| Publication Number | Publication Date |
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| CN110617649A true CN110617649A (en) | 2019-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910848244.8A Pending CN110617649A (en) | 2019-09-09 | 2019-09-09 | Heat circulation system of rotary room temperature magnetic refrigerator |
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| CN (1) | CN110617649A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692685A (en) * | 2020-06-24 | 2020-09-22 | 邢江 | Novel refrigeration equipment using magnetic material as working medium |
| CN112629057A (en) * | 2020-12-31 | 2021-04-09 | 包头稀土研究院 | Single-row multistage tandem double-magnetic-field magnetic refrigerator and heat exchange method thereof |
| CN112629058A (en) * | 2020-12-31 | 2021-04-09 | 包头稀土研究院 | Single-row multistage series magnetic refrigerator and heat exchange method thereof |
| CN112629060A (en) * | 2020-12-31 | 2021-04-09 | 包头稀土研究院 | Multi-row multistage parallel magnetic refrigerator and heat exchange method thereof |
| CN114183948A (en) * | 2021-12-16 | 2022-03-15 | 中国科学院江西稀土研究院 | Multi-field coupling solid-state refrigerating device |
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| CN104776631A (en) * | 2014-01-13 | 2015-07-15 | 海尔集团公司 | Rotating type magnetic refrigeration component and magnetic refrigeration equipment |
| CN211177503U (en) * | 2019-09-09 | 2020-08-04 | 包头稀土研究院 | Heat circulation system of rotary room temperature magnetic refrigerator |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692685A (en) * | 2020-06-24 | 2020-09-22 | 邢江 | Novel refrigeration equipment using magnetic material as working medium |
| CN112629057A (en) * | 2020-12-31 | 2021-04-09 | 包头稀土研究院 | Single-row multistage tandem double-magnetic-field magnetic refrigerator and heat exchange method thereof |
| CN112629058A (en) * | 2020-12-31 | 2021-04-09 | 包头稀土研究院 | Single-row multistage series magnetic refrigerator and heat exchange method thereof |
| CN112629060A (en) * | 2020-12-31 | 2021-04-09 | 包头稀土研究院 | Multi-row multistage parallel magnetic refrigerator and heat exchange method thereof |
| CN112629060B (en) * | 2020-12-31 | 2024-03-29 | 包头稀土研究院 | Multi-row multi-stage parallel magnetic refrigerator and heat exchange method thereof |
| CN112629058B (en) * | 2020-12-31 | 2024-03-29 | 包头稀土研究院 | Single-row multistage serial magnetic refrigerator and heat exchange method thereof |
| CN112629057B (en) * | 2020-12-31 | 2024-03-29 | 包头稀土研究院 | Single-row multistage serial double-magnetic-field magnetic refrigerator and heat exchange method thereof |
| CN114183948A (en) * | 2021-12-16 | 2022-03-15 | 中国科学院江西稀土研究院 | Multi-field coupling solid-state refrigerating device |
| CN114183948B (en) * | 2021-12-16 | 2023-07-04 | 中国科学院江西稀土研究院 | Multi-field coupling solid-state refrigeration device |
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