CN110645734A - Rotary magnetic refrigeration cooler and method - Google Patents
Rotary magnetic refrigeration cooler and method Download PDFInfo
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- CN110645734A CN110645734A CN201911045458.8A CN201911045458A CN110645734A CN 110645734 A CN110645734 A CN 110645734A CN 201911045458 A CN201911045458 A CN 201911045458A CN 110645734 A CN110645734 A CN 110645734A
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000012533 medium component Substances 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 230000005284 excitation Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 claims description 6
- 238000009825 accumulation Methods 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 6
- 230000003321 amplification Effects 0.000 description 2
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- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
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- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling 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
- 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
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- 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]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
The invention discloses a rotary magnetic refrigeration cooler and a method, and the rotary magnetic refrigeration cooler is characterized in that: the magnetic refrigerating machine comprises a machine upper shell and a machine lower shell which are mutually assembled; a first clamping plate and a second clamping plate are symmetrically fixed between the combined contact surfaces of the upper shell and the lower shell of the cold machine, a circular magnetic working medium assembly is rotatably supported and installed between the first clamping plate and the second clamping plate through a shaft, and a permanent magnet groove is sleeved outside the top of the upper shell of the cold machine. The defects of complex flow channel, large body resistance and large heat loss of the magnetic refrigeration cold joint at the present stage are overcome.
Description
Technical Field
The invention belongs to the technical field of magnetic refrigeration, and particularly relates to a rotary magnetic refrigeration cooler for continuous refrigeration without energy storage.
Background
The magnetic refrigeration technology is a new refrigeration technology, is different from the traditional vapor compression refrigeration technology, has simpler process and does not need to use organic working media. The organic working medium used by the high-efficiency refrigerating unit at present has larger or smaller Ozone Destruction Potential (ODP) and Global Warming Potential (GWP). According to the montreal protocol a large number of conventional organic working substances will be limited, which is one reason why magnetic refrigeration technology has emerged.
Magnetic refrigeration technology is a process for realizing refrigeration or heating by utilizing the magnetocaloric effect of certain materials. Generally, when a used magnetocaloric material enters a magnetic field, the magnetic moments of atoms in the material are changed from disorder to order, and the magnetic entropy of the material is lowered to release heat according to the energy conservation magnetocaloric material; when the magnetocaloric material leaves a magnetic field, the material absorbs heat, and the magnetic moments of the atoms inside the material change from ordered to disordered. The giant magnetocaloric effect of Gd and Gd5Si2Ge2 alloy thereof is found recently, which lays a foundation for the development of magnetic refrigeration technology.
In order to realize a continuous and stable magnetic refrigeration process, the magnetic field applied to the magnetic working medium needs to be periodically changed. The electromagnetic field can provide a periodically changing magnetic field, but the electric system current is larger to form a larger magnetic field, so that higher loss is formed, and the current permanent magnet magnetic field is more popular. According to the relative motion mode of the magnet and the magnetic working medium, the magnetic refrigeration cold machine is divided into a rotary type and a reciprocating type. Wherein, the rotary cooler has better continuity of the refrigeration process and is widely concerned.
However, in order to realize the continuous switching of the cold and the heat of the system, the internal flow channel of the refrigerator is more complex and has more pipelines, which causes heat loss and low energy loss utilization rate, and the complex flow channel structure causes the reliability of the refrigerator to be reduced and the resistance to be higher. The complicated system structure is also an important restriction factor for restricting the amplification of the magnetic refrigeration system, so the continuity and the reliability of the magnetic refrigeration chiller are directly related to the commercial application and the popularization possibility of the magnetic refrigeration chiller.
Disclosure of Invention
The invention provides a novel rotary magnetic refrigeration cold machine, aiming at solving the defects of complex flow channel, large body resistance and large heat loss of the magnetic refrigeration cold machine at the present stage.
In order to achieve the technical features, the invention is realized as follows: a rotary magnetic refrigeration cold machine comprises a cold machine upper shell and a cold machine lower shell which are mutually assembled; the utility model discloses a circular magnetism working medium subassembly of cold machine, including the shell, the cold machine is gone up the shell and is cooled down the shell, the combination contact surface of shell is fixed with first splint and second splint between the cold machine, installs circular magnetism working medium subassembly and drives its rotation through the axle support between first splint and second splint, the outside cover in top of shell is equipped with the permanent magnet groove on the cold machine, the permanent magnet groove provides the circular magnetism working medium subassembly of perpendicular to planar excitation magnetic field.
Bearing mounting holes are processed in the middle of the first clamping plate and the middle of the second clamping plate respectively, a first bearing is mounted in the bearing mounting hole of the first clamping plate, a second bearing is mounted in the bearing mounting hole of the second clamping plate, and two ends of the shaft are supported and mounted between the first bearing and the second bearing respectively.
The circular magnetic working medium assembly comprises a framework, a plurality of magnetic working media are fixedly arranged in gaps of the framework, and the outer edges of the magnetic working media are fixed through circular hoops.
The framework is in a star-shaped structure cast by hard heat-insulating plastic; the magnetic working medium is formed by casting and is cut into a required sector.
The first clamping plate and the second clamping plate adopt the same structure, the cross sections of the first clamping plate and the second clamping plate both adopt T-shaped cross sections, and long-strip-shaped ribs with the T-shaped cross sections are clamped between the upper shell and the lower shell of the cold machine and are fixed; and a silica gel layer which is used for rotating, sealing and matching with the round magnetic working medium component is arranged on the other smooth surface of the T-shaped section.
After the upper shell of the cold machine, the lower shell of the cold machine, the circular magnetic working medium assembly, the first clamping plate and the second clamping plate are assembled, the whole cavity is divided into a cold-carrying cavity and a heat-carrying cavity which are relatively closed.
The heat-carrying cavity is used for circulating heat-carrying gas, and adopts a downward-in-upward-out arrangement mode, a heat-carrying flow channel inlet is arranged at the lower part of one side of the heat-carrying cavity, and a heat-carrying flow channel outlet is arranged at the upper part of the other side of the heat-carrying cavity; the top angle position of one side of the heat-carrying flow channel inlet is provided with a baffle plate which is obliquely arranged so as to avoid the accumulation of hot fluid in corners.
The cold-carrying cavity is used for circulating cold-carrying liquid and adopts an arrangement mode of upper inlet and lower outlet, the upper part of one side of the cold-carrying cavity is provided with a cold-carrying runner inlet, and the lower part of the other side of the cold-carrying cavity is provided with a cold-carrying runner outlet; an obliquely arranged baffle plate is arranged at the bottom corner of one side of the cold carrier runner inlet so as to avoid cold fluid accumulation at the corner.
When the circular magnetic working medium assembly works, the circular magnetic working medium assembly rotates anticlockwise, and heat-carrying gas in the heat-carrying cavity and cold-carrying liquid in the cold-carrying cavity respectively move in the opposite directions.
The refrigeration method of the rotary magnetic refrigeration refrigerator comprises the following steps:
step 1: a magnetic field is generated through the permanent magnet slots, and meanwhile, the magnetic field can penetrate through the upper shell of the refrigerator, so that an excitation field is provided for the circular magnetic working medium assembly in the refrigerator;
step 2: the shaft synchronously drives the circular magnetic working medium assembly to rotate through the driving shaft of the power device, so that the circular magnetic working medium assembly rotates in a magnetic field;
step 3: when the magnetic working medium enters the magnetic field, the magnetic working medium can be excited to release heat; when the magnetic working medium leaves the field, the magnetic working medium is demagnetized and absorbs heat;
step 4: the rotation angular velocity of the circular magnetic working medium assembly is controlled by calculating the heat absorption time of the magnetic working medium in the cold fluid, so that the heat release and heat absorption of the magnetic working medium in the heat-carrying cavity and the cold-carrying cavity are realized in a circulating manner, and the continuous refrigeration process of the magnetic refrigeration refrigerator is further realized.
The invention has the following beneficial effects:
1. the design of the refrigerating machine disclosed by the invention can realize effective energy utilization to realize a continuous refrigerating process, realize modularization simplification of each link and solve the problems of complex system, complex flow, complex manufacturing and the like of a rotary magnetic refrigerating machine.
2. The magnetic refrigeration cold machine has the advantages of simple structure, high reliability, high equipment amplification feasibility, simple cold-carrying and hot runner and small system resistance.
Drawings
The invention is further illustrated by the following figures and examples.
Fig. 1 is a view showing the overall explosion structure of the present invention.
Fig. 2 is a front sectional view of the present invention.
Fig. 3 is a front and back structure view of the first splint of the present invention.
Fig. 4 is a front and back structure view of the second splint of the present invention.
FIG. 5 is a diagram of a circular magnetic working medium assembly according to the present invention.
In the figure: the magnetic refrigerating machine comprises a magnetic refrigerating machine 1, a circular magnetic working medium assembly 2, a machine upper shell 3a, a machine lower shell 3b, a shaft 4, a first bearing 5a, a second bearing 5b, a first clamping plate 6a, a second clamping plate 6b, a framework 7, a magnetic working medium 8, a circular hoop 9, a permanent magnet groove 10, a cold carrying cavity 11, a heat carrying cavity 12, a heat carrying runner inlet 13, a heat carrying runner outlet 14, a cold carrying runner inlet 15 and a cold carrying runner outlet 16.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-5, a rotary magnetic refrigerator is characterized in that: the magnetic refrigerating machine 1 comprises a machine upper shell 3a and a machine lower shell 3b which are mutually assembled; a first clamping plate 6a and a second clamping plate 6b are symmetrically fixed between the combined contact surfaces of the upper shell 3a and the lower shell 3b of the cold machine, a circular magnetic working medium assembly 2 is supported and installed between the first clamping plate 6a and the second clamping plate 6b through a shaft 4 and drives the circular magnetic working medium assembly to rotate, and a permanent magnet groove 10 is sleeved outside the top of the upper shell 3a of the cold machine and provides an excitation magnetic field perpendicular to the plane of the circular magnetic working medium assembly 2 for the circular magnetic working medium assembly 2. The rotary magnetic refrigeration chiller can realize effective energy utilization and realize continuous refrigeration process. The defects of complex flow channel, large body resistance and large heat loss of the magnetic refrigeration cold joint at the present stage are overcome.
Further, bearing mounting holes are respectively machined in the middle parts of the first clamping plate 6a and the second clamping plate 6b, a first bearing 5a is mounted in the bearing mounting hole of the first clamping plate 6a, a second bearing 5b is mounted in the bearing mounting hole of the second clamping plate 6b, and two ends of the shaft 4 are respectively supported and mounted between the first bearing 5a and the second bearing 5 b. Through the structure, the shaft 4 can smoothly rotate under the supporting action of the bearing, and then the supported circular magnetic medium component 2 is driven to rotate.
Furthermore, the circular magnetic medium assembly 2 comprises a framework 7, a plurality of magnetic medium 8 are uniformly distributed and fixedly installed on the periphery of the framework 7, and the outer edges of the magnetic medium 8 are fixed through circular hoops 9. The framework 7 is cast into a star-shaped structure by hard heat-insulating plastic; the magnetic working medium 8 is formed by casting and is cut into a required fan shape. The magnetic working medium 8 can generate heat under the action of a magnetic field, and heat absorption is realized after the magnetic working medium leaves a magnetic field area, so that circulating refrigeration is realized when the magnetic working medium alternately enters the magnetic field.
Further, the first clamping plate 6a and the second clamping plate 6b adopt the same structure, the cross sections of the first clamping plate and the second clamping plate both adopt T-shaped cross sections, and long-strip-shaped ribs with the T-shaped cross sections are clamped between the upper refrigerator shell 3a and the lower refrigerator shell 3b and are fixed; and a silica gel layer which is used for rotating, sealing and matching with the round magnetic working medium component 2 is arranged on the other smooth surface of the T-shaped section. The shaft 4 can be effectively supported by the splint with the structure.
Further, after the upper casing 3a of the refrigerator, the lower casing 3b of the refrigerator, the circular magnetic medium assembly 2, the first clamping plate 6a and the second clamping plate 6b are assembled, the whole cavity is divided into two relatively closed cavities, namely a cold carrying cavity 11 and a heat carrying cavity 12. The heat-carrying cavity 12 is used for circulating heat-carrying gas, and adopts a downward-in-upward-out arrangement mode, wherein the lower part of one side of the heat-carrying cavity is provided with a heat-carrying flow channel inlet 13, and the upper part of the other side of the heat-carrying cavity is provided with a heat-carrying flow channel outlet 14; an inclined baffle is arranged at the top corner of one side of the heat carrying flow channel inlet 13 to avoid hot fluid accumulation in the corner. The cold-carrying cavity 11 is used for circulating cold-carrying liquid, and adopts an arrangement mode of upper inlet and lower outlet, wherein the upper part of one side of the cold-carrying cavity is provided with a cold-carrying runner inlet 15, and the lower part of the other side of the cold-carrying cavity is provided with a cold-carrying runner outlet 16; an obliquely arranged partition is mounted at the bottom corner of the side of the cold carrier channel inlet 15 to avoid cold fluid accumulation in the corner. Through the two relatively sealed flow passages, cooling and heating can be respectively formed.
Further, during operation, the circular magnetic working medium assembly 2 rotates anticlockwise, and the heat-carrying gas in the heat-carrying cavity 12 and the cold-carrying liquid in the cold-carrying cavity 11 respectively move in opposite directions. By adopting the movement and rotation directions, the flow of fluid inside the device can be fully realized, and meanwhile, the heat exchange efficiency is greatly increased, and further the working efficiency is improved.
Further, a magnetic field is applied to the outer part of the upper side runner, and the upper side runner is a magnetic medium excitation area; no magnetic field is arranged outside the lower runner, and the lower runner is a demagnetizing area of a magnetic working medium; the middle clamping plate covers the part without magnetic field and is a transition area.
Example 2:
the installation process of the magnetic refrigeration chiller 1 comprises the following steps:
the shaft 4 is inserted into the circular magnetic working medium component 2, and the circular magnetic working medium component can be fixed in a fixing mode through friction, ribbing, threads and the like according to different system sizes and torsion; then fixing a first bearing 5a and a second bearing 5b into a first clamping plate 6a and a second clamping plate 6b, wherein the first clamping plate 6a is arranged at the top end of the bearing, the second clamping plate 6b penetrates through the other end of the shaft 4, and the clamping plate assembly clamps the circular magnetic working medium assembly 2 to the outer side of the ribbed side of the clamping plate assembly through the shaft 4; then a first clamping plate 6a and a second clamping plate 6b which are provided with a shaft 4, a circular magnetic working medium assembly 2, a first bearing 5a and a second bearing 5b are arranged in a lower shell 3b of the refrigerator, ribs of the first clamping plate 6a and the second clamping plate 6b can fix the shaft 4 and the circular magnetic working medium assembly 2 at corresponding positions, the upper shell 3a of the refrigerator is covered, and the two outer boxes can be fixed by means of thread calipers and the like; and finally, the permanent magnet groove 10 is placed on one side of the upper shell 3a of the refrigerator to complete the assembly of the magnetic refrigeration refrigerator 1.
Example 4:
in the implementation, the shell assembly is formed by butt joint of an upper shell 3a of the refrigerator and a lower shell 3b of the refrigerator which are the same, the shell is made of aluminum alloy, and the internal dimension of the wall thickness of 2mm is 200mm multiplied by 100 mm multiplied by 30 mm. The upper shell 3a of the cold machine and the lower shell 3b of the cold machine are connected with interfaces for fluid to enter and exit, the interfaces and the shell are made of the same material and are connected in a welding mode, and the outer sides of the interfaces are engraved with threads and are connected with external circulation through hoses. The outer diameter of a round hole which can be passed by another bearing is 10mm is reserved on the lower edge of the opening of the shell component.
In the first clamping plate 6a and the second clamping plate 6b of the embodiment, the cross section is T-shaped, the main bodies of the first clamping plate 6a and the second clamping plate 6b are hard heat-insulating plastic material, the length multiplied by the width multiplied by the height is 200mm multiplied by 30mm multiplied by 2mm, one side of the hard heat-insulating plastic material is provided with a rib with the length multiplied by the width multiplied by the height multiplied by 200mm multiplied by 2mm, and one side of the hard heat-insulating plastic material, which is contacted with a magnetic working medium, is adhered with a silicon rubber material with. One second clamping plate 6b of the two clamping plate components is provided with a circular hole with the diameter of 12mm in the center, so that the bearing can pass through the circular hole and be installed with the bearing, and the other first clamping plate 6a is provided with a groove without passing through and can be provided with a bearing with the thickness of 2 mm.
The circular magnetic working medium assembly 2 in the embodiment comprises a framework 7, a magnetic working medium 8 and a circular hoop 9, wherein the framework 7 is formed by casting rigid heat-insulating plastic into a star shape, the outer diameter multiplied by the inner diameter multiplied by the thickness is 198mm multiplied by 10mm multiplied by 25mm, the magnetic working medium 8 is formed by casting and cut into a required fan shape, the straight multiplied by the thickness is 168mm multiplied by 25mm, and finally the circular hoop 9 is fixed on the framework 7 through the carbon fiber circular hoop 9, and the outer diameter multiplied by the inner diameter multiplied by the thickness is 200mm multiplied by 198mm multiplied by 25 mm. The thickness of the circular magnetic working medium component 2 is 25 mm.
In the embodiment, the first bearing 5a, the second bearing 5b and the shaft 4 are made of stainless steel materials, the diameter of the shaft 4 is 10mm, the outer diameter of the first bearing 5a and the outer diameter of the second bearing 5b are 12mm, the inner diameter of the first bearing is 10mm, and the thickness of the first bearing is 2 mm.
Example 5:
the refrigeration method of the rotary magnetic refrigeration refrigerator comprises the following steps:
step 1: a magnetic field is generated through the permanent magnet slots 10 and can penetrate through the upper cooler shell 3a and the lower cooler shell 3b, so that an excitation field is provided for the circular magnetic working medium assembly 2 in the magnetic working medium assembly;
step 2: the shaft 4 is driven by the power device, and the shaft 4 synchronously drives the circular magnetic working medium component 2 to rotate, so that the circular magnetic working medium component 2 rotates in a magnetic field;
step 3: at the moment, when the magnetic working medium 8 enters the magnetic field, the magnetic working medium 8 can be excited to release heat; when the magnetic working medium 8 leaves the field, the magnetic working medium 8 is demagnetized and absorbs heat;
step 4: the rotation angular velocity of the circular magnetic working medium component 2 is controlled by calculating the heat absorption time of the magnetic working medium 8 in the cold fluid, so that the heat release and heat absorption of the magnetic working medium 8 in the heat-carrying cavity 12 and the cold-carrying cavity 11 are realized in a circulating manner, and the continuous refrigeration process of the magnetic refrigeration refrigerator 1 is further realized.
Claims (10)
1. A rotary magnetic refrigeration chiller is characterized in that: the magnetic refrigerating machine (1) comprises a machine upper shell (3 a) and a machine lower shell (3 b) which are mutually assembled; the utility model discloses a cold machine of cold machine, including cold machine upper housing (3 a) and cold machine lower housing (3 b), the combination contact surface between the symmetry be fixed with first splint (6 a) and second splint (6 b), support through axle (4) between first splint (6 a) and second splint (6 b) and install circular magnetism working medium subassembly (2) and drive its rotation, the outside cover in top of cold machine upper housing (3 a) is equipped with permanent magnet groove (10), permanent magnet groove (10) provide the planar excitation magnetic field of circular magnetism working medium subassembly (2) of perpendicular to for circular magnetism working medium subassembly (2).
2. A rotary magnetic refrigerator according to claim 1 wherein: the middle part of first splint (6 a) and second splint (6 b) has all processed the bearing mounting hole respectively, installs first bearing (5 a) at the bearing mounting hole of first splint (6 a) inside, installs second bearing (5 b) at the bearing mounting hole of second splint (6 b) inside, the both ends of axle (4) are supported respectively and are installed between first bearing (5 a) and second bearing (5 b).
3. A rotary magnetic refrigerator according to claim 1 wherein: the circular magnetic working medium assembly (2) comprises a framework (7), a plurality of magnetic working media (8) are fixedly arranged in gaps of the framework (7), and the outer edges of the magnetic working media (8) are fixed through circular hoops (9).
4. A rotary magnetic refrigerator according to claim 3 in which: the framework (7) is cast into a star-shaped structure by hard heat-insulating plastic; the magnetic working medium (8) is formed by casting and is cut into a required fan shape.
5. A rotary magnetic refrigerator according to claim 1 or 2 wherein: the first clamping plate (6 a) and the second clamping plate (6 b) adopt the same structure, the cross sections of the first clamping plate and the second clamping plate both adopt T-shaped cross sections, and long-strip-shaped ribs with the T-shaped cross sections are clamped between the upper refrigerator shell (3 a) and the lower refrigerator shell (3 b) and are fixed; and a silica gel layer which is used for rotating, sealing and matching with the round magnetic working medium component (2) is arranged on the other smooth surface of the T-shaped section.
6. A rotary magnetic refrigerator according to claim 1 wherein: the upper shell (3 a) of the refrigerator, the lower shell (3 b) of the refrigerator, the circular magnetic working medium assembly (2), the first clamping plate (6 a) and the second clamping plate (6 b) are assembled and then divide the whole cavity into a cold carrying cavity (11) and a heat carrying cavity (12) which are closed relatively.
7. A rotary magnetic refrigerator according to claim 6 in which: the heat-carrying cavity (12) is used for circulating heat-carrying gas, and adopts a downward-in-upward-out arrangement mode, the lower part of one side of the heat-carrying cavity is provided with a heat-carrying flow channel inlet (13), and the upper part of the other side of the heat-carrying cavity is provided with a heat-carrying flow channel outlet (14); and an obliquely-arranged partition plate is arranged at the top angle position of one side of the heat-carrying flow channel inlet (13) to avoid hot fluid from accumulating at corners.
8. A rotary magnetic refrigerator according to claim 7 wherein: the cold-carrying cavity (11) is used for circulating cold-carrying liquid, and adopts an arrangement mode of upper inlet and lower outlet, wherein the upper part of one side of the cold-carrying cavity is provided with a cold-carrying runner inlet (15), and the lower part of the other side of the cold-carrying cavity is provided with a cold-carrying runner outlet (16); an obliquely arranged baffle is arranged at the bottom corner of one side of the cold carrier runner inlet (15) to avoid cold fluid accumulation in corners.
9. A rotary magnetic refrigerator according to claim 1 wherein: when the circular magnetic working medium assembly works, the circular magnetic working medium assembly (2) rotates anticlockwise, and heat-carrying gas in the heat-carrying cavity (12) and cold-carrying liquid in the cold-carrying cavity (11) respectively move in the opposite directions.
10. A refrigerating method of a rotary magnetic refrigerator as claimed in any one of claims 1 to 9, characterized in that:
step 1: a magnetic field is generated through the permanent magnet groove (10), and meanwhile, the magnetic field can penetrate through the upper shell (3 a) of the refrigerator, so that an excitation field is provided for the circular magnetic working medium assembly (2) in the refrigerator;
step 2: the power device drives the shaft (4), and the shaft (4) synchronously drives the circular magnetic working medium component (2) to rotate, so that the circular magnetic working medium component (2) rotates in a magnetic field;
step 3: when the magnetic working medium (8) enters the magnetic field, the magnetic working medium (8) can be excited to release heat; when the magnetic working medium (8) leaves the field, the magnetic working medium (8) is demagnetized and absorbs heat;
step 4: the rotation angular velocity of the circular magnetic working medium assembly (2) is controlled by calculating the heat absorption time of the magnetic working medium (8) in the cold fluid, so that the heat release and heat absorption of the magnetic working medium (8) in the heat-carrying cavity (12) and the cold-carrying cavity (11) are realized in a circulating manner, and the continuous refrigeration process of the magnetic refrigeration refrigerator (1) is further realized.
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| CN201911045458.8A CN110645734B (en) | 2019-10-30 | 2019-10-30 | Rotary magnetic refrigeration chiller and method |
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| CN201911045458.8A CN110645734B (en) | 2019-10-30 | 2019-10-30 | Rotary magnetic refrigeration chiller and method |
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| CN211011986U (en) * | 2019-10-30 | 2020-07-14 | 中国长江三峡集团有限公司 | Rotary magnetic refrigeration cooler |
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| JP2007155267A (en) * | 2005-12-07 | 2007-06-21 | Toshiba Corp | Magnetic refrigerating device having magnetic material blade |
| CN101728176A (en) * | 2008-10-29 | 2010-06-09 | 乐金电子(天津)电器有限公司 | Heat radiation structure of anode of magnetron |
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| CN105466070A (en) * | 2014-08-27 | 2016-04-06 | 青岛海尔股份有限公司 | Rotary type magnetic refrigeration component and magnetic refrigeration equipment |
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