CN110645734B - Rotary magnetic refrigeration chiller and method - Google Patents
Rotary magnetic refrigeration chiller and method Download PDFInfo
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- CN110645734B CN110645734B CN201911045458.8A CN201911045458A CN110645734B CN 110645734 B CN110645734 B CN 110645734B CN 201911045458 A CN201911045458 A CN 201911045458A CN 110645734 B CN110645734 B CN 110645734B
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000012533 medium component Substances 0.000 claims abstract description 28
- 239000012530 fluid Substances 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 238000009825 accumulation Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 238000007789 sealing Methods 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 11
- 238000001816 cooling Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 239000000306 component Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 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
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000003466 welding Methods 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]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a rotary magnetic refrigeration chiller and a method thereof, which are characterized in that: the magnetic refrigeration chiller comprises a chiller upper shell and a chiller lower shell which are mutually assembled; the combined contact surface of the upper shell of the refrigerator and the lower shell of the refrigerator is symmetrically fixed with a first clamping plate and a second clamping plate, a circular magnetic medium component is installed between the first clamping plate and the second clamping plate through a shaft rotation support, and a permanent magnet groove is sleeved outside the top of the upper shell of the refrigerator. Solves the defects of complex flow channel, large body resistance and large heat loss of the magnetic refrigeration cold junction at the present stage.
Description
Technical Field
The invention belongs to the technical field of magnetic refrigeration, and particularly relates to a rotary magnetic refrigeration chiller without energy storage and capable of continuously refrigerating.
Background
The magnetic refrigeration technology is an emerging refrigeration technology, is different from the traditional vapor compression refrigeration technology, is simpler in process and does not need to use organic working media. The organic working media used by the high-efficiency refrigerating unit at the present stage have larger or smaller Ozone Depletion Potential (ODP) and Global Warming Potential (GWP). A number of conventional organic working substances will be limited according to the montreal protocol, which is one reason for the rise of magnetic refrigeration technology.
Magnetic refrigeration technology is to use the magnetocaloric effect of certain materials to realize refrigeration or heating technology. When the magnetic field is entered into the magnetocaloric material, the magnetic moment of atoms in the material is changed from disorder to order, the magnetic entropy of the material is changed into low, and the magnetocaloric material needs to release heat according to energy conservation; the magnetocaloric material absorbs heat when it leaves the magnetic field, and the magnetic moment of atoms inside the material changes from ordered to disordered. Recently, the giant magneto-thermal effect of Gd and Gd5Si2Ge2 alloy thereof 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 is required to change periodically. The electromagnetic field may provide a periodically varying magnetic field, but the power system current is higher to create a larger magnetic field resulting in higher losses than is currently prevalent with permanent magnet fields. According to the relative motion mode of the magnet and the magnetic working medium, the magnetic refrigerating and cooling machine is divided into two main modes of rotation and reciprocating. Among them, the rotary refrigeration process continuity is of great concern.
However, in order to realize continuous switching of cold and hot of the system, the internal flow channel of the cooling machine is complex and has more pipelines, which causes heat loss and low energy loss utilization rate, and the complex flow channel structure reduces the reliability of the cooling machine and increases the resistance. The complex system structure is also an important limiting factor for limiting the amplification of the magnetic refrigeration system, so that the continuity and the reliability of the magnetic refrigeration chiller are directly related to the commercial application and popularization possibility of the magnetic refrigeration chiller.
Disclosure of Invention
The invention provides a novel rotary magnetic refrigeration chiller for solving the defects of complex flow channel, large body resistance and large heat loss of the magnetic refrigeration chiller at the present stage.
In order to achieve the technical characteristics, the aim of the invention is realized in the following way: a rotary magnetic refrigeration chiller, comprising a chiller upper housing and a chiller lower housing assembled to each other; the combined contact surface of the upper shell of the refrigerator and the lower shell of the refrigerator is symmetrically fixed with a first clamping plate and a second clamping plate, a circular magnetic medium component is installed between the first clamping plate and the second clamping plate through a shaft support and is driven to rotate, a permanent magnet groove is sleeved outside the top of the upper shell of the refrigerator, and the permanent magnet groove provides an excitation magnetic field perpendicular to the plane of the circular magnetic medium component for the circular magnetic medium component.
Bearing mounting holes are formed 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 holes of the first clamping plate, a second bearing is mounted in the bearing mounting holes of the second clamping plate, and two ends of the shaft are respectively supported and mounted between the first bearing and the second bearing.
The circular magnetic working medium assembly comprises a framework, a plurality of magnetic working mediums are fixedly arranged on the gap of the framework in an evenly distributed mode, and the outer edges of the magnetic working mediums are fixed through circular hoops.
The framework is formed by casting hard heat-insulating plastic into a star-shaped structure; the magnetic working medium is cast and formed and cut into a required fan shape.
The first clamping plate and the second clamping plate adopt the same structure, the sections of the first clamping plate and the second clamping plate adopt T-shaped sections, and the long strip-shaped ribs of the T-shaped sections are clamped between the upper shell of the cooling machine and the lower shell of the cooling machine and are fixed; and the other smooth surface of the T-shaped section is provided with a silica gel layer which is used for being in rotary sealing fit with the circular magnetic working medium component.
After the upper shell of the cooling machine, the lower shell of the cooling machine, the circular magnetic working medium component, the first clamping plate and the second clamping plate are assembled, the whole cavity is divided into two relatively closed cavities of a cooling cavity and a heat carrying cavity.
The heat-carrying cavity is used for circulating heat-carrying gas, adopts a lower-inlet upper-outlet arrangement mode, and is provided with a heat-carrying runner inlet at the lower part of one side and a heat-carrying runner outlet at the upper part of the other side; and a baffle plate which is obliquely arranged is arranged at the vertex angle position of one side where the heat carrying runner inlet is positioned so as to avoid the accumulation of hot fluid at corners.
The cold carrying cavity is used for circulating cold carrying liquid, adopts an upper inlet and lower outlet arrangement mode, and is provided with a cold carrying channel inlet at the upper part of one side and a cold carrying channel outlet at the lower part of the other side; a baffle plate is mounted in an inclined arrangement at the bottom angle of the side of the cold carrier channel inlet to avoid cold fluid accumulation in the corners.
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 reversely.
The refrigerating method of the rotary magnetic refrigerating machine comprises the following steps:
step1: a magnetic field is generated through the permanent magnet groove, and simultaneously the magnetic field can penetrate through the upper shell of the refrigerator, so that an exciting field is provided for the circular magnetic medium component inside the refrigerator;
step2: the driving shaft of the power device synchronously drives the circular magnetic medium component to rotate so as to enable the circular magnetic medium component to rotate in a magnetic field;
step3: 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 demagnetizes and absorbs heat;
step4: the rotation angular velocity of the circular magnetic working medium component is controlled by calculating the heat absorption time of the magnetic working medium in the cold fluid, so that the circulation heat release and heat absorption of the magnetic working medium in the heat carrying cavity and the cold carrying cavity are realized, and the continuous refrigeration process of the magnetic refrigeration chiller is further realized.
The invention has the following beneficial effects:
1. the design of the refrigerator can realize the effective energy utilization to realize the continuous refrigeration process, realize the modularization and simplification of each link, and solve the problems of complex system, complex flow, complex manufacture and the like shared by rotary magnetic refrigeration refrigerators.
2. The magnetic refrigeration chiller has the advantages of simple structure, high reliability and equipment amplification feasibility, simple cold-carrying and hot-runner and small system resistance.
Drawings
The invention is further described below with reference to the drawings and examples.
Fig. 1 is an overall exploded view of the present invention.
Fig. 2 is a front cross-sectional view of the present invention.
FIG. 3 is a front and back face structure diagram of the first clamping plate of the present invention.
FIG. 4 is a diagram showing the structure of the front and back surfaces of the second clamping plate.
FIG. 5 is a block diagram of a circular magnetic working medium assembly of the present invention.
In the figure: the magnetic refrigeration chiller 1, the circular magnetic working medium component 2, the upper chiller shell 3a, the lower chiller shell 3b, the shaft 4, the first bearing 5a, the second bearing 5b, the first clamping plate 6a, the second clamping plate 6b, the framework 7, the magnetic working medium 8, the circular hoop 9, the permanent magnet groove 10, the cold carrying cavity 11, the heat carrying cavity 12, the hot carrier runner inlet 13, the hot carrier runner outlet 14, the cold carrier runner inlet 15 and the cold carrier 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, characterized in that: the magnetic refrigeration chiller 1 comprises a chiller upper shell 3a and a chiller lower shell 3b which are assembled with each other; the combined contact surfaces of the upper shell 3a and the lower shell 3b of the refrigerator are symmetrically fixed with a first clamping plate 6a and a second clamping plate 6b, 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 driven to rotate, a permanent magnet groove 10 is sleeved outside the top of the upper shell 3a of the refrigerator, and the groove 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 continuous refrigeration process. Solves the defects of complex flow channel, large body resistance and large heat loss of the magnetic refrigeration cold junction at the present stage.
Further, bearing mounting holes are formed in the middle portions of the first clamping plate 6a and the second clamping plate 6b, a first bearing 5a is mounted in the bearing mounting holes of the first clamping plate 6a, a second bearing 5b is mounted in the bearing mounting holes of the second clamping plate 6b, and two ends of the shaft 4 are 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 working medium assembly 2 is driven to rotate.
Further, the circular magnetic working medium assembly 2 comprises a framework 7, a plurality of magnetic working mediums 8 are uniformly and fixedly arranged on the periphery of the framework 7, and the outer edges of the magnetic working mediums 8 are fixed through circular hoops 9. The framework 7 is formed by casting hard heat-insulating plastic into a star-shaped structure; the magnetic working medium 8 is cast and formed and cut into a required fan shape. The magnetic working medium 8 can generate heat under the action of a magnetic field, absorb heat after leaving a magnetic field area, and realize circulation refrigeration when alternately entering the magnetic field.
Further, the first clamping plate 6a and the second clamping plate 6b adopt the same structure, the sections of the first clamping plate and the second clamping plate adopt T-shaped sections, and the long strip-shaped ribs with the T-shaped sections are clamped between the upper shell 3a of the refrigerator and the lower shell 3b of the refrigerator and fix the long strip-shaped ribs; the other smooth surface of the T-shaped section is provided with a silica gel layer which is used for being in rotary sealing fit with the round magnetic working medium component 2. The shaft 4 can be effectively supported by the clamping plate with the structure.
Further, after the upper casing 3a, the lower casing 3b, the circular magnetic medium component 2, the first clamping plate 6a and the second clamping plate 6b are assembled, the whole cavity is divided into two relatively closed cavities of the cold carrying cavity 11 and the heat carrying cavity 12. The heat-carrying cavity 12 is used for circulating heat-carrying gas, adopts a lower-inlet upper-outlet arrangement mode, and is provided with a heat-carrying runner inlet 13 at the lower part of one side and a heat-carrying runner outlet 14 at the upper part of the other side; a baffle plate is installed at the top corner position of the side where the heat carrying runner inlet 13 is located, and is arranged obliquely so as to avoid the accumulation of hot fluid at the corners. The cold carrying cavity 11 is used for circulating cold carrying liquid, adopts an arrangement mode of up-in and down-out, and is provided with a cold carrying channel inlet 15 at the upper part of one side and a cold carrying channel outlet 16 at the lower part of the other side; at the bottom corner of the side of the cold carrier channel inlet 15 a partition plate is mounted which is arranged obliquely in order to avoid cold fluid accumulation in the corners. By means of the two relatively sealed flow passages, refrigerating and heating can be respectively formed.
Further, during operation, the circular magnetic medium component 2 rotates anticlockwise, and makes the heat-carrying gas in the heat-carrying cavity 12 and the cold-carrying liquid in the cold-carrying cavity 11 move reversely. Through adopting foretell motion and direction of rotation, the flow of its inside fluid of realization that can be abundant has simultaneously great increase its heat exchange efficiency, and then has improved work efficiency.
Further, a magnetic field is applied to the outside of the upper side flow and is a magnetic working medium excitation area; the outside of the lower side flow is free of a magnetic field and is a magnetic working medium demagnetizing area; the middle clamping plate covers the part without a 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 penetrated into the circular magnetic working medium component 2, and the fixing mode can be fixed by friction, rib addition, threads and the like according to the different sizes and torque of the system; then the first bearing 5a and the second bearing 5b are fixed into the first clamping plate 6a and the second clamping plate 6b, wherein the first clamping plate 6a is arranged at the top end of the bearing, the second clamping plate 6b passes through the other end of the shaft 4, and the circular magnetic working medium component 2 is clamped by the shaft 4 to face outwards with the rib of the clamping plate component; then the first clamping plate 6a and the second clamping plate 6b which are provided with the shaft 4, the circular magnetic working medium component 2, the first bearing 5a and the second bearing 5b are arranged in the lower shell 3b of the refrigerator, the ribs of the first clamping plate 6a and the second clamping plate 6b can fix the shaft 4 and the circular magnetic working medium component 2 at corresponding positions, the upper shell 3a of the refrigerator is covered, and the two outer boxes can be fixed through a thread caliper and the like; finally, the permanent magnet slots 10 are placed on one side of the upper shell 3a of the refrigerator to complete the assembly of the magnetic refrigerator 1.
Example 4:
the shell component in the implementation is formed by butt joint of two identical upper shells 3a and lower shells 3b of the cold machine, the shell is made of an aluminum alloy material, and the inner dimensions of 2mm in wall thickness are 200mm in length, 100 mm in width and 30mm in height. The upper shell 3a and the lower shell 3b of the cooler are connected with interfaces for fluid to enter and exit, the interfaces and the shell are made of the same material, are connected in a welding mode, are threaded on the outer sides of the interfaces, and are connected with the outside in a circulating mode through hoses. The outer diameter of a round hole which can be used for passing through another bearing is reserved at the lower edge of the opening of the shell component and is 10mm.
In the embodiment, the sections of the first clamping plate 6a and the second clamping plate 6b are T-shaped, the main bodies of the first clamping plate 6a and the second clamping plate 6b are made of hard heat insulation plastic materials, the length, the width and the height of the main bodies are 200mm multiplied by 30mm multiplied by 2mm, the side of the main bodies is provided with ribs with the length, the width and the height of the main bodies are 200mm multiplied by 2mm, and the side of the main bodies, which is contacted with a magnetic working medium, is stuck with a silica gel material with the thickness of 0.5 mm. One of the two clamping plate parts, the second clamping plate 6b, is provided with a 12mm round hole in the center, so that the bearing can pass through and be installed, and the other first clamping plate 6a is provided with a groove but not through, so that the bearing with the thickness of 2mm can be installed.
The circular magnetic working medium component 2 of the embodiment consists of a framework 7, a magnetic working medium 8 and a circular hoop 9, wherein the framework 7 is formed by casting hard heat-insulating plastic into a star shape, the outer diameter multiplied by the inner diameter multiplied by the thickness of 198mm multiplied by 10mm multiplied by 25mm, the magnetic working medium 8 is cast and formed and cut into a required fan shape, the straight multiplied by the thickness of 168mm multiplied by 25mm, and finally the magnetic working medium 8 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 of 200mm multiplied by 198mm multiplied by 25mm. The thickness of the circular magnetic working medium component 2 is 25mm.
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 second bearing 5b is 12mm, the inner diameter is 10mm, and the thickness is 2mm.
Example 5:
the refrigerating method of the rotary magnetic refrigerating machine comprises the following steps:
step1: a magnetic field is generated through the permanent magnet slots 10, and can penetrate through the upper shell 3a and the lower shell 3b of the refrigerator, so that an exciting field is provided for the circular magnetic medium assembly 2 inside the magnetic medium assembly;
step2: the shaft 4 synchronously drives the circular magnetic medium component 2 to rotate through the driving shaft 4 of the power device, so that the circular magnetic medium component 2 rotates in a magnetic field;
step3: 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 demagnetizes and absorbs heat;
step4: the rotation angular velocity of the circular magnetic medium component 2 is controlled by calculating the heat absorption time of the magnetic medium 8 in the cold fluid, so that the circulation heat release and heat absorption of the magnetic medium 8 in the heat carrying cavity 12 and the cold carrying cavity 11 are realized, and the continuous refrigeration process of the magnetic refrigeration chiller 1 is further realized.
Claims (6)
1. A rotary magnetic refrigeration chiller, characterized by: the magnetic refrigeration chiller (1) comprises a chiller upper shell (3 a) and a chiller lower shell (3 b) which are mutually assembled; a first clamping plate (6 a) and a second clamping plate (6 b) are symmetrically fixed between the combined contact surfaces of the upper shell (3 a) and the lower shell (3 b) of the refrigerator, a circular magnetic working medium assembly (2) is supported and installed between the first clamping plate (6 a) and the second clamping plate (6 b) through a shaft (4), the circular magnetic working medium assembly (2) is driven to rotate through the shaft (4), a permanent magnet groove (10) is sleeved outside the top of the upper shell (3 a) of the refrigerator, and the permanent magnet groove (10) 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);
bearing mounting holes are respectively formed in the middle parts of the first clamping plate (6 a) and the second clamping plate (6 b), a first bearing (5 a) is mounted in the bearing mounting holes of the first clamping plate (6 a), a second bearing (5 b) is mounted in the bearing mounting holes of the second clamping plate (6 b), and two ends of the shaft (4) are respectively supported and mounted between the first bearing (5 a) and the second bearing (5 b);
the circular magnetic working medium assembly (2) comprises a framework (7), wherein a plurality of magnetic working mediums (8) are uniformly and fixedly arranged in gaps of the framework (7), and the outer edges of the magnetic working mediums (8) are fixed through circular hoops (9);
the first clamping plate (6 a) and the second clamping plate (6 b) adopt the same structure, the sections of the clamping plates adopt T-shaped sections, and the long strip-shaped ribs of the T-shaped sections are clamped between the upper shell (3 a) of the refrigerator and the lower shell (3 b) of the refrigerator and fix the long strip-shaped ribs; a silica gel layer used for rotating and sealing matching with the circular magnetic working medium component (2) is arranged on the other smooth surface of the T-shaped section;
after the upper shell (3 a), the lower shell (3 b), the circular magnetic working medium component (2), the first clamping plate (6 a) and the second clamping plate (6 b) are assembled, the whole cavity is divided into two relatively closed cavities of a cold carrying cavity (11) and a heat carrying cavity (12).
2. A rotary magnetic refrigerator according to claim 1, wherein: the framework (7) is formed by casting hard heat-insulating plastic into a star-shaped structure; the magnetic working medium (8) is cast and formed and cut into a required fan shape.
3. A rotary magnetic refrigerator according to claim 1, wherein: the heat-carrying cavity (12) is used for circulating heat-carrying gas, adopts a lower-inlet upper-outlet arrangement mode, is provided with a heat-carrying runner inlet (13) at the lower part of one side of the heat-carrying cavity, and is provided with a heat-carrying runner outlet (14) at the upper part of the other side of the heat-carrying cavity; and a baffle plate which is obliquely arranged is arranged at the vertex angle position of one side where the heat carrying runner inlet (13) is positioned so as to avoid the accumulation of hot fluid at corners.
4. A rotary magnetic refrigerator according to claim 3, wherein: the cold carrying cavity (11) is used for circulating cold carrying liquid, adopts an upper inlet and lower outlet arrangement mode, and is provided with a cold carrying channel inlet (15) at the upper part of one side and a cold carrying channel outlet (16) at the lower part of the other side; a partition plate is mounted in an inclined arrangement at the bottom angle of the side of the cold carrier channel inlet (15) to avoid cold fluid accumulation in the corners.
5. A rotary magnetic refrigerator according to claim 1, wherein: when the circular magnetic working medium assembly (2) works, the circular magnetic working medium assembly rotates anticlockwise, and heat-carrying gas in the heat-carrying cavity (12) and cold-carrying liquid in the cold-carrying cavity (11) respectively move reversely.
6. A refrigerating method of a rotary magnetic refrigerating machine as recited in any one of claims 1 to 5, characterized in that:
step1: a magnetic field is generated through the permanent magnet groove (10), and can penetrate through the upper shell (3 a) of the refrigerator, so that an exciting field is provided for the circular magnetic working medium assembly (2) inside the refrigerator;
step2: the shaft (4) synchronously drives the circular magnetic medium component (2) to rotate through the driving shaft (4) of the power device, so that the circular magnetic medium component (2) rotates in a magnetic field;
step3: 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) demagnetizes and absorbs heat;
step4: 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 circulation 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, and the continuous refrigeration process of the magnetic refrigeration chiller (1) is further realized.
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