CN110345680A - A kind of cold-storage bed and magnetic refrigerating system - Google Patents
A kind of cold-storage bed and magnetic refrigerating system Download PDFInfo
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- CN110345680A CN110345680A CN201910735617.0A CN201910735617A CN110345680A CN 110345680 A CN110345680 A CN 110345680A CN 201910735617 A CN201910735617 A CN 201910735617A CN 110345680 A CN110345680 A CN 110345680A
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
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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]
Abstract
The present invention provides a kind of cold-storage bed and magnetic refrigerating system, cold-storage bed includes: first chamber and second chamber, first chamber includes first area and second area, second chamber includes third region and the fourth region, and first and the 4th magnetic working medium of positive-effect magneto-caloric material are provided in first, the fourth region, second and third region in be provided with second and third magnetic working medium of negative effect magneto-caloric material；And it is additionally provided with the first magnetic generating device, energy relative motion between cold-storage bed and the first magnetic generating device, first magnetic generating device and the homogeneous clock synchronization in first area and third region, the first magnetic generating device and second area and the fourth region be not opposite, and the first magnetic generating device and second area and the homogeneous clock synchronization of the fourth region, the first magnetic generating device and first area and third region be not opposite.It can realize to magnetic working medium plus magnetic and demagnetizing effect simultaneously through the invention, increase the time of cooling system or the time of heating, solve the problems, such as that single cold-storage bed flow path cooling time is short.
Description
Technical field
The invention belongs to magnetic refrigeration technology fields, and in particular to a kind of cold-storage bed and magnetic refrigerating system.
Background technique
Magnetic refrigeration is a kind of environmentally protective New Refrigerating technology.Compared with conventional vapor-compression refrigeration, magnetic refrigeration is adopted
Use magnetic material as refrigeration working medium, to ozone layer without destruction, no greenhouse effects, mangneto refrigeration technique obtained in recent years compared with
Develop fastly, development prospect is had an optimistic view of by various countries expert.
Magnetic Refrigeration Technique is the technology that a kind of magnetothermal effect magnetic material is applied to refrigerating field, and magnetothermal effect is magnetic
Property material a kind of build-in attribute, it is that material itself magnetic entropy caused by variation by external magnetic field changes, simultaneous material
Material heat absorption, exothermic process.Such as ferrimagnet, Curie temperature (magnetic order-disorder transformation of the magnetothermal effect at it
Temperature) it is the most significant nearby, when effect has external magnetic field, the magnetic entropy value of the material reduces and releases heat；Conversely, when removal
When external magnetic field, the magnetic entropy value of material increases and absorbs heat, this heat release-caused just and during the compression-expansion of gas
Endothermic thermal event is similar.
Fig. 1 is existing Magnetic refrigerator system schematic, in Fig. 11 be drive reversing arrangement, 2 be cool end heat exchanger, 3 be
Cold-storage bed, 4 be hot end heat exchanger, 5 be driving reversing arrangement, 6 be permanent magnet.One, the model machine complete AMR circulation includes 4
Process: (1) add magnetic: the regenerator equipped with magnetic working medium enters magnetic field space, and the magnetic working medium in cold-storage bed adds magnetic, and temperature increases；(2)
Heat flow: fluid flows through AMR to hot end heat exchanger from cool end heat exchanger under piston driving, and fluid absorbs heat in AMR,
And heat is released to hot end heat exchanger；(3) degaussing: the regenerator equipped with magnetic working medium exits magnetic field space, magnetic working medium degaussing, temperature
It reduces；(4) cold flow: fluid flows through regenerator to cool end heat exchanger from hot end heat exchanger, and fluid discharges heat to magnetic working medium, and
Heat is absorbed from cool end heat exchanger.The continuous above process can realize refrigeration.Model machine AMR in Fig. 1 cannot be realized simultaneously to be added
Magnetic and degaussing, this causes system that could only freeze in cold flow process；Permanent magnetism body length, the length of width and cold-storage bed, width
Spend identical, amount of movement is not less than the length of cold-storage bed when magnet is mobile, this will lead to, and magnet dosage is big, wasted work is big, and refrigerating capacity is small.
It cannot be realized simultaneously plus magnetic and degaussing due to existing in magnetic refrigerating system in the prior art, this causes system to be only had
It could freeze in cold flow process；Permanent magnetism body length, the length of width and cold-storage bed, of same size, amount of movement when magnet is mobile
Not less than the length of cold-storage bed, the technical problems such as magnet dosage is big, wasted work is big, and refrigerating capacity is small that this will lead to, therefore the present invention is ground
Study carefully and designs a kind of cold-storage bed and magnetic refrigerating system.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that overcome in magnetic refrigerating system in the prior art exist cannot be same
Shi Shixian adds magnetic and degaussing, leads to cooling system or heats time short defect, to provide a kind of cold-storage bed and magnetic refrigeration system
System.
The present invention provides a kind of cold-storage bed comprising:
First chamber and second chamber, the first chamber and the second chamber are separated by heat insulation layer, and described the
One chamber includes first area and second area, and the first magnetic working medium, the second area are provided in the first area
In be provided with the second magnetic working medium；And the second chamber includes third region and the fourth region, and is set in the third region
It is equipped with third magnetic working medium, is provided with the 4th magnetic working medium in the fourth region；And the first magnetic working medium and the 4th magnetic work
Matter is positive-effect magneto-caloric material, and the second magnetic working medium and the third magnetic working medium are negative effect magneto-caloric material；
And the first area, the second area, the third region and the fourth region are also correspondingly arranged on
One magnetic generating device, energy relative motion between the cold-storage bed and the first magnetic generating device, so that first magnetic occurs
Device and the homogeneous clock synchronization in the first area and the third region, the first magnetic generating device and the second area and institute
It is not opposite to state the fourth region, the first magnetic generating device and the second area and the homogeneous clock synchronization of the fourth region, institute
It is not opposite to state the first magnetic generating device and the first area and the third region.
Preferably,
The first chamber and the second chamber are arranged up and down, and the first chamber is located at the upper of the second chamber
Side；The first area is located at the top with the third region, and the second area is located at the top of the fourth region.
Preferably,
The first chamber has first port and second port, and the first port is connected to the first area, makes
Heat exchanging fluid can be flowed into or from the first area, the second port and described second by the first port by obtaining
Regional connectivity enables and heat exchanging fluid is flowed into or from the second area by the second port；
And/or the second chamber has third port and the 4th port, the third port and the third region connect
It is logical, enable and heat exchanging fluid is flowed into or from by the third region, the 4th port and institute by the third port
The fourth region connection is stated, enables and heat exchanging fluid is flowed into or from by the fourth region by the 4th port.
Preferably,
The cold-storage bed is fixed, and the first magnetic generating device is translatable or rotates and to fill in first magnetic
The first area and the third region can be in the first magnetic generating device simultaneously during horizontalization is moved or rotated
Between, or enable the second area and the fourth region during the first magnetic generating device is translatable or rotates
Enough while between the first magnetic generating device.
Preferably,
The first area, the second area, the third region and the fourth region form a magnetic refrigeration train,
And the cold-storage bed includes more than two magnetic refrigeration trains being connected in series.
Preferably,
The first chamber further includes the 5th region and the 6th region being sequentially communicated with one end of the second area, and
It is provided with the 5th magnetic working medium in the 5th region, is provided with the 6th magnetic working medium in the 6th region；And second chamber
Room further includes the District 7 domain and Section Eight domain being sequentially communicated with one end of the fourth region, and is set in the District 7 domain
It is equipped with the 7th magnetic working medium, is provided with the 8th magnetic working medium in the Section Eight domain；And the 5th magnetic working medium and the 8th magnetic work
Matter is positive-effect magneto-caloric material, and the 6th magnetic working medium and the 7th magnetic working medium are negative effect magneto-caloric material；
And the 5th region, the 6th region, District 7 domain and Section Eight domain are also correspondingly arranged on the generation of the second magnetic
Device, between the cold-storage bed and the second magnetic generating device also can relative motion so that the second magnetic generating device with
The homogeneous clock synchronization in 5th region and the District 7 domain, the second magnetic generating device and the 6th region and the described 8th
Region is not opposite；The second magnetic generating device and the homogeneous clock synchronization in the 6th region and the Section Eight domain, described second
Magnetic generating device and the 5th region and the District 7 domain be not opposite.
Preferably,
The cold-storage bed is fixed, and the second magnetic generating device is translatable or rotates and to fill in second magnetic
The 5th region and the 6th region can be in the second magnetic generating device simultaneously during horizontalization is moved or rotated
Between, or enable the District 7 domain and Section Eight domain during the second magnetic generating device is translatable or rotates
Enough while between the second magnetic generating device.
The present invention also provides a kind of magnetic refrigerating systems comprising preceding described in any item cold-storage beds, in the first chamber
The first heat exchanging fluid is flowed, the second heat exchanging fluid is flowed in the second chamber.
Preferably,
It further include the first heat exchanging pipe, when including first port and second port, first heat exchanging pipe can divide
It is not connected to the first port and the second port, and be connected on first heat exchanging pipe with the first port
Position is additionally provided with the first cool end heat exchanger, and the position being connected on first heat exchanging pipe with the second port is also set up
There is the first hot end heat exchanger.
Preferably,
It further include the second heat exchanging pipe, when including third port and four ports, second heat exchanging pipe can divide
It is not connected to the third port and the 4th port, and be connected on second heat exchanging pipe with the third port
Position is additionally provided with the second cool end heat exchanger, and the position being connected on second heat exchanging pipe with the 4th port is also set up
There is the second hot end heat exchanger.
Preferably,
It is also set between first cool end heat exchanger and first hot end heat exchanger on first heat exchanging pipe
It is equipped with the first driving reversing arrangement；And/or it is located at second cool end heat exchanger and described second on second heat exchanging pipe
The second driving reversing arrangement is additionally provided between hot end heat exchanger.
A kind of cold-storage bed and magnetic refrigerating system provided by the invention have the following beneficial effects:
1. the first and second chambers are separatedly arranged by being insulated in cold-storage bed in the present invention, first chamber includes being arranged just
The first area of effect magneto-caloric material and the second area and second chamber of setting negative effect magneto-caloric material include the negative effect of setting
Answer magneto-caloric material third region and setting positive-effect magneto-caloric material the fourth region, and the first magnetic generating device with first and
When third region is opposite, it is not opposite with second and the fourth region, when can to go to first and third region, the first magnetic work
The heating of matter excitation, third magnetic working medium excitation but cools down, and heat exchanging fluid flows through that first area is heated, heat exchanging fluid flows through third area
Domain is cooled down, at the same heat exchanging fluid flow through second area due to the second magnetic working medium be negative effect magnetic material its added by degaussing
Heat, heat exchanging fluid flow through the fourth region and are cooled down by degaussing, thus the fluid for flowing through in first chamber effectively freezed or
It heats, simultaneously flow through the total fluid of second chamber and effectively heated or freezed, vice versa, therefore can be achieved at the same time pair
Magnetic working medium adds magnetic and demagnetizing effect, that is, the flow path for possessing single cold-storage bed can simultaneously plus magnetic and degaussing, cooling time increase one
Times, magneto-caloric material absorbs heat simultaneously and heat release；To effectively increase the time of cooling system or the time of heating, effectively solve
Single cold-storage bed can not achieve while add magnetic and degaussing, the problem for causing single cold-storage bed flow path cooling time short；
2. the cold-storage bed in the present invention includes positive-effect magneto-caloric material and adverse effect magneto-caloric material, can be by cold-storage bed
Half magnetic working medium magnetic field is provided, the other half does not provide magnetic field, and this cold-storage bed also can reach following effect: magnetic generating device is used
Quality is relatively a half amount than before, saves cost, solves magnetic generating device and cold-storage bed in only one cold-storage bed flow path
The problem of area is identical, causes magnetic generating device increased costs；This bed can reduce the system cycle of operation, improve system operation frequency
Rate improves refrigeration performance；The length of this bed can be longer, but the several times of common bed length are, it can be achieved that multiple common cold-storages
Bed it is series-parallel, effectively solve cold-storage bed due to will by magnetic generating device provide magnetic field, length be generally equivalent to or be less than magnetic
The length of generating device, and magnetic generating device price is valuable, assembling is difficult, and monolithic magnet length is smaller, and which results in cold-storage beds
The lesser problem of length.
Detailed description of the invention
Fig. 1 is the flow passage structure figure of magnetic refrigerator in the prior art；
Fig. 2 is the structural schematic diagram in cold-storage bed of the invention (4 regions)；
Fig. 3 is the structural schematic diagram in cold-storage bed of the invention (8 regions)；
Structural schematic diagram when Fig. 4 is the first motion path of the heat exchanging fluid of magnetic refrigerating system of the invention；
Structural schematic diagram when Fig. 5 is second group of motion path of the heat exchanging fluid of magnetic refrigerating system of the invention.
Appended drawing reference indicates in figure are as follows:
1, the first driving reversing arrangement；10, first chamber；20, second chamber；100, the first heat exchanging pipe；200, second
Heat exchanging pipe；21, the first cool end heat exchanger；22, the second cool end heat exchanger；3, cold-storage bed；33, heat insulation layer；311, first port；
312, second port；313, first area；314, second area；315, the 5th region；316, the 6th region；321, third end
Mouthful；322, the 4th port；323, third region；324, the fourth region；325, District 7 domain；326, Section Eight domain；34, grid；
41, the first hot end heat exchanger；42, the second hot end heat exchanger；5, the second driving reversing arrangement；6, the first magnetic generating device.
Specific embodiment
Embodiment 1
As shown in Figure 2-5, the present invention provides a kind of cold-storage bed comprising:
First chamber 10 and second chamber 20, the first chamber 10 and the second chamber 20 are divided by heat insulation layer 33
Every, and the first chamber 10 includes that the first area 313 being connected and second area 314 (are separated, grid 34 by grid 34
Magnetic working medium can be stopped mutually to alter but heat exchanging fluid can be allowed to pass through), and the first magnetic working medium is provided in the first area 313,
The second magnetic working medium is provided in the second area 314；And the second chamber 20 includes the third region 323 that is connected and the
Four regions 324 (being separated by grid 34, grid 34 can stop magnetic working medium mutually to be altered but heat exchanging fluid can be allowed to pass through), and described
It is provided with third magnetic working medium in third region 323, is provided with the 4th magnetic working medium in the fourth region 324；And first magnetic
Working medium and the 4th magnetic working medium are positive-effect magneto-caloric material, and the second magnetic working medium and the third magnetic working medium are negative effect
Magneto-caloric material；
And the first area 313, the second area 314, the third region 323 and the fourth region 324 are also
It is correspondingly arranged on the first magnet 6, energy relative motion between the cold-storage bed and first magnet 6, so that first magnet 6
With the homogeneous clock synchronization in the first area 313 and the third region 323, first magnet 6 and the second area 314 and institute
It is not opposite to state the fourth region 324；First magnet 6 and the second area 314 and the fourth region 324 are opposite
When, first magnet 6 and the first area 313 and the third region 323 be with respect to (magnetic generating device packet here
Include permanent magnet and magnetic induction coil etc.).
The first and second chambers are separatedly arranged by being insulated in cold-storage bed in the present invention, and first chamber includes the positive effect of setting
The second area and second chamber of the first area and setting negative effect magneto-caloric material of answering magneto-caloric material include setting negative effect
The fourth region in the third region of magneto-caloric material and setting positive-effect magneto-caloric material, and the first magnetic generating device is with first and the
When three regions are opposite, it is not opposite with second and the fourth region, when can to go to first and third region, the first magnetic working medium
Excitation heating, third magnetic working medium excitation but cools down, and heat exchanging fluid flows through that first area is heated, heat exchanging fluid flows through third region
Cooled down, at the same heat exchanging fluid flow through second area due to the second magnetic working medium be negative effect magnetic material its be heated by degaussing,
Heat exchanging fluid flows through the fourth region and is cooled down by degaussing, so that the fluid flowed through in first chamber is effectively freezed or made
Heat simultaneously flows through the total fluid of second chamber and is effectively heated or freezed, and vice versa, therefore can be achieved at the same time to magnetic
Working medium adds magnetic and demagnetizing effect, that is, the flow path for possessing single cold-storage bed can simultaneously plus magnetic and degaussing, cooling time increasing are twice,
Magneto-caloric material absorbs heat simultaneously and heat release；To effectively increase the time of cooling system or the time of heating, effectively solve single
A cold-storage bed can not achieve while add magnetic and degaussing, the problem for causing single cold-storage bed flow path cooling time short；
Cold-storage bed in the present invention includes positive-effect magneto-caloric material and adverse effect magneto-caloric material, can be by cold-storage bed
Half magnetic working medium provides magnetic field, the other half does not provide magnetic field, and this cold-storage bed also can reach following effect: magnet dosage is than before
Quality is relatively a half, and saves cost, and it is identical as Area of cooling bed is stored to solve in only one cold-storage bed flow path magnet, causes magnetic
The problem of body increased costs；This bed can reduce the system cycle of operation, improve system running frequency, improve refrigeration performance；It is this
The length of bed can be longer, but the several times of common bed length, it can be achieved that multiple common cold-storage beds it is series-parallel, effectively solve to store
Cold bed due to be provided magnetic field by magnet, length be generally equivalent to or less than magnet length, and magnet price is valuable, assembling
Difficulty, monolithic magnet length is smaller, and which results in the lesser problems of the length of cold-storage bed.
Upper area of the present invention is with the material magnetothermal effect at lower area same position on the contrary, the Curie temperature phase of material
Together, temperature becomes that also identical (the effect state that is upper and lower corresponding region magneto-caloric material when adding magnetic and degaussing is on the contrary, magnetic in a region
Hot material absorbs heat to fluid, and to fluid heat release, material magnetothermal effect is identical to be the magneto-caloric material magneto-caloric material in another region
In order to two flow paths temperature across identical, this is primary object)；The Curie temperature of every layer of magneto-caloric material is along direction in cold-storage bed
Hot end heat exchanger direction is sequentially increased.
Preferably,
The first chamber 10 and about 20 second chamber are arranged, and the first chamber 10 is located at second chamber
The top of room 20；The first area 313 is located at the top with the third region 323, and the second area 314 is located at described
The top of the fourth region 324.This be the first and second chambers of the invention optimum position relationship and first and third region,
Optimum position relationship between second and the fourth region enables first area in the first chamber of top and second area same
When freeze or heating, third region and the fourth region in the second chamber of lower section can heat or freeze simultaneously, realize refrigeration
Or the heating time extends one times of effect than existing, and effectively reduces the length of magnet.
Preferably.
The first chamber 10 has first port 311 and second port 312, the first port 311 and described first
Region 313 is connected to, and enables and heat exchanging fluid is flowed into or from the first area 313 by the first port 311；Institute
It states second port 312 to be connected to the second area 314, enables and flowed into heat exchanging fluid by the second port 312
Or the outflow second area 314；
And/or the second chamber 20 has third port 321 and the 4th port 322, the third port 321 and institute
The connection of third region 323 is stated, enables and heat exchanging fluid is flowed into or from by the third region by the third port 321
323；4th port 322 is connected to the fourth region 324, is enabled and is flowed heat exchange by the 4th port 322
Body flows into or from the fourth region 324.
This is the structure type of two ports of the difference of the first and second chambers of the invention, is held by respective two
Mouthful, make one of them be entrance another be outlet, realize the disengaging of fluid and realization first chamber in two regions it is same
Shi Jiare or refrigeration, two regions in second chamber are freezed simultaneously or heating.
Preferably,
The cold-storage bed is fixed, and the first magnetic generating device 6 is translatable or rotates and to fill in first magnetic
The first area 313 and the third region 323 can be sent out in first magnetic simultaneously during setting 6 translations or rotating
Between generating apparatus 6, or make the second area 314 and institute during the first magnetic generating device 6 is translatable or rotates
State the fourth region 324 can simultaneously between the first magnetic generating device 6 (i.e. the first magnetic generating device from first area and
The upper and lower ends in third region are translatable or turn to the upper and lower ends of second area and the fourth region).This is cold-storage of the invention
Preferred relative motion relation between bed and the first magnetic generating device, can effectively realize the first magnetic generating device first in this way
The translation or rotation toggled between second area (or third and fourth region), existing magnetic refrigerating system is only in fluid
Cold flow process stream refrigeration, magnetic generating device sectional area is identical as Area of cooling bed is stored, and the system magnetic of invention fills
Set sectional area be cold-storage bed length half, every time be translatable or rotation length be cold-storage bed length half, and system by
Magneto-caloric material in lower regions exists simultaneously heat absorption and heat release, cause the fluid of magnetic refrigerating system flow it is any when
Quarter has the fluid of half freezing, and the fluid of half is in heat release.Cold-storage bed exists simultaneously heat flow and cold flow in this flow path
Dynamic (the cold flow process of existing cold-storage bed is different from the time that heat flow process occurs, and does not occur simultaneously), cooling time compared with
Flow path increasing before is twice, and the magnetic generating device length in flow path is the half of cold-storage bed length, and is translatable or rotates length
For the half of cold-storage bed length.
Preferably,
As shown in figure 3, the first area 313, the second area 314, the third region 323 and the 4th area
Domain 324 forms a magnetic refrigeration train, and the cold-storage bed includes more than two magnetic refrigeration trains being connected in series.This is of the invention
Further preferred structure type, may include four area above, and areal is even number, the hot material of positive-effect magnetic of upper area
Material and adverse effect magneto-caloric material arranged for interval, the positive-effect magneto-caloric material and adverse effect magneto-caloric material arranged for interval of lower area,
Upper area and lower area separate that (primary object is positive-effect magneto-caloric material and the hot material of adverse effect magnetic by heat-insulating material
Expect arranged for interval, single cold-storage bed is filled only with positive-effect magneto-caloric material or adverse effect magneto-caloric material in the prior art, is not interval
Arrangement), every layer region in upper area is separated by strainer, between every layer region of lower area also by strainer every
It opens.In cold-storage bed there are four the inlet and outlet numbers of heat transport fluid, two openings, two openings, synchronization, upper area is under
The fluid flow direction in portion region is opposite.The length of (must be the multiple of 4 and 4) this cold-storage bed can make as needed
It is very long, it can be the several times of common bed length.
Embodiment 2
Preferably,
The first chamber 10 further includes the 5th region 315 being sequentially communicated with one end of the second area 314 and
Six regions 316, and the 5th magnetic working medium is provided in the 5th region 315, the 6th magnetic is provided in the 6th region 316
Working medium；And the second chamber 20 further includes the District 7 domain being connected being sequentially communicated with one end of the fourth region 324
325 and Section Eight domain 326, and the 7th magnetic working medium is provided in the District 7 domain 325, it is arranged in the Section Eight domain 326
There is the 8th magnetic working medium；And the 5th magnetic working medium and the 8th magnetic working medium are positive-effect magneto-caloric material, and the 6th magnetic work
Matter and the 7th magnetic working medium are negative effect magneto-caloric material；
And the 5th region 315, the 6th region 316, District 7 domain 325 and Section Eight domain 326 are also correspondingly arranged
Have the second magnetic generating device (not shown), between the cold-storage bed and the second magnetic generating device also can relative motion so that
The second magnetic generating device is filled with the homogeneous clock synchronization in the 5th region 315 and the District 7 domain 325, second magnetic
It sets not opposite with the 6th region 316 and the Section Eight domain 326；The second magnetic generating device and the 6th region
316 and the homogeneous clock synchronization in the Section Eight domain 326, the second magnetic generating device and the 5th region 315 and the District 7
Domain 325 is not opposite.
This is present invention further optimization structure type, that is, includes eight regions, the hot material of positive-effect magnetic of upper area
Material and adverse effect magneto-caloric material arranged for interval, the positive-effect magneto-caloric material and adverse effect magneto-caloric material arranged for interval of lower area,
Upper area and lower area separate that (primary object is positive-effect magneto-caloric material and the hot material of adverse effect magnetic by heat-insulating material
Expect arranged for interval, single cold-storage bed is filled only with positive-effect magneto-caloric material or adverse effect magneto-caloric material in the prior art, is not interval
Arrangement), every layer region in upper area is separated by strainer, between every layer region of lower area also by strainer every
It opens.In cold-storage bed there are four the inlet and outlet numbers of heat transport fluid, two openings, two openings, synchronization, upper area is under
The fluid flow direction in portion region is opposite.The length of this cold-storage bed can make very long as needed, and it is long to can be common bed
The several times of degree.
Preferably,
The cold-storage bed is fixed, and the second magnetic generating device rotates and to rotate in the second magnetic generating device
During the 5th region 315 and the 6th region 316 can simultaneously between the second magnetic generating device, or
Enable the second magnetic generating device rotation during the District 7 domain 325 and the Section Eight domain 326 simultaneously
Between the second magnetic generating device.It is further preferred when including the second magnetic generating device that this is cold-storage bed of the invention
Forms of motion, i.e. second of body can effectively realize the second magnetic generating device in the 5th and in this way relative to cold-storage bed motion
The rotation toggled between six regions (or the 7th and Section Eight domain), existing magnetic refrigerating system is only in fluid cold flow process
Stream refrigeration, magnetic generating device sectional area is identical as Area of cooling bed is stored, and the system magnetic generating device sectional area of invention is
The half of cold-storage bed length, the length rotated every time is the half of cold-storage bed length, and system is due to the magnetic heat of lower regions
Material exists simultaneously heat absorption and heat release, and the fluid of magnetic refrigerating system is caused to have the fluid of half in any time flowed
Freezing, the fluid of half is in heat release.In this flow path cold-storage bed exist simultaneously heat flow and cold flow (existing cold-storage bed it is cold
Flow process is different from the time that heat flow process occurs, and does not occur simultaneously), cooling time relatively before flow path increase one
Times, the magnetic generating device length in flow path is the half of cold-storage bed length, and rotates the half that length is cold-storage bed length.
When piston is divided into eight regions, cold-storage bed is as shown in figure 3, each region positive-effect magneto-caloric material in top and negative
Effect magneto-caloric material is alternately arranged, and lower area material positive-effect magneto-caloric material and negative effect magneto-caloric material are also to be alternately arranged,
If top first area 313 is positive-effect magneto-caloric material, second area 314 is negative effect magneto-caloric material, the 5th region 315 is positive
Effect magneto-caloric material, the 6th region 316 are negative effect magneto-caloric material, and third region 323 is negative effect magneto-caloric material, the fourth region
324 be positive-effect magneto-caloric material, and District 7 domain 325 is negative effect magneto-caloric material, and Section Eight domain 326 is positive-effect magneto-caloric material.
At this time magnetic device include two identical magnetic generating devices, a magnetic generating device first area 313, second area 314,
It is moved back and forth between third region 323, the fourth region 324, another magnetic generating device is in device in the 5th region the 315, the 6th
Region 316, District 7 domain 325 move back and forth between Section Eight domain 326.Cold-storage bed in Fig. 3 be equivalent in Fig. 2 two it is identical
Cold-storage bed merge, motion process is identical as the cold-storage bed in Fig. 2.This bed can greatly reduce each circulation magnetic generating device
Move wasted work.
Embodiment 3
The present invention also provides a kind of magnetic refrigerating systems comprising preceding described in any item cold-storage beds, the first chamber 10
The first heat exchanging fluid of middle flowing flows the second heat exchanging fluid in the second chamber 20.
Magnetic refrigerating system in the present invention includes positive-effect magneto-caloric material and reversal due to the special structure form of cold-storage bed
Magneto-caloric material is answered, it can be by providing magnetic field to the half magnetic working medium in cold-storage bed, the other half does not provide magnetic field, and this cold-storage bed can
Reach following effect: 1. realize the flow path for possessing single cold-storage bed, can add magnetic and degaussing simultaneously, and cooling time increasing is twice,
Magneto-caloric material absorbs heat simultaneously and heat release.2. quality is relatively a half magnet dosage than before, cost is saved.3. this bed can subtract
The mini system cycle of operation improves system running frequency, improves refrigeration performance.4. the length of this bed can be longer, but common
The several times of bed length, it can be achieved that multiple common cold-storage beds it is series-parallel.
Preferably,
It further include the first heat exchanging pipe 100, when including first port 311 and second port 312, first heat exchanger tube
Road 100 can be respectively communicated with the first port 311 and the second port 312, and on first heat exchanging pipe 100 with
The position that the first port 311 is connected is additionally provided with the first cool end heat exchanger 21, on first heat exchanging pipe 100 with institute
It states the position that second port 312 is connected and is additionally provided with the first hot end heat exchanger 41.This be in the present invention the first heat exchanging pipe with
And first cool end heat exchanger and the first hot end heat exchanger structure type, heat exchanging fluid absorbs the heat of magnetic working medium in cold-storage bed
Or cooling capacity is released after cooling capacity in the first cool end heat exchanger and forms externally refrigeration and releases heat in the first hot end heat exchanger
Form externally heating.
Preferably,
It further include the second heat exchanging pipe 200, when including third port 321 and four ports 322, second heat exchanger tube
Road 200 can be respectively communicated with the third port 321 and the 4th port 322, and on second heat exchanging pipe 200 with
The position that the third port 321 is connected is additionally provided with the second cool end heat exchanger 22, on second heat exchanging pipe 200 with institute
It states the position that the 4th port 322 is connected and is additionally provided with the second hot end heat exchanger 42.This be in the present invention the second heat exchanging pipe with
And second cool end heat exchanger and the second hot end heat exchanger structure type, heat exchanging fluid absorbs the heat of magnetic working medium in cold-storage bed
Or cooling capacity is released after cooling capacity in the second cool end heat exchanger and forms externally refrigeration and releases heat in the second hot end heat exchanger
Form externally heating.
Preferably,
Be located on first heat exchanging pipe 100 first cool end heat exchanger 21 and first hot end heat exchanger 41 it
Between be additionally provided with the first driving reversing arrangement 1 (preferably cylinder or hydraulic cylinder)；And/or second heat exchanging pipe 200 is upper
It is (excellent that the second driving reversing arrangement 5 is additionally provided between second cool end heat exchanger 22 and second hot end heat exchanger 42
It is selected as cylinder or hydraulic cylinder).
Complicated, the larger problem of magnetic refrigerator wasted work for existing magnetic refrigerator flow path, the present invention devise a kind of novel
Cold-storage bed, as shown in Fig. 2, cold-storage bed is divided into four regions, respectively first area 313, second area 314, third region
323, the fourth region 324, heat insulation layer 33 and cannot be by fluid such as foam, first area 313 and second area 314 pass through grid
It separates, third region 323, the fourth region 324 are separated by grid.Filling positive-effect magneto-caloric material in first area 313, second
Negative effect magneto-caloric material is filled in region 314, negative effect magneto-caloric material is filled in third region 323, and the fourth region 324 fills positive effect
Answer magneto-caloric material.Otherwise when filling negative effect magneto-caloric material in first area 313, second area 314 is filled out in other three regions
Positive-effect magneto-caloric material is filled, positive-effect magneto-caloric material is filled in third region 323, and the fourth region 324 fills negative effect magneto-caloric material.
First area 313 is identical as the magneto-caloric material Curie temperature in third region 323, and magnetothermal effect is identical；Secondth area
Domain 314 is identical as the magneto-caloric material Curie temperature of the fourth region 324, and magnetothermal effect is identical.The Curie of 314 material of second area
Temperature is greater than the Curie temperature of 313 region material of first area.
First port 311, second port 312, third port 321, the opening that the 4th port 322 is cold-storage bed, cold-storage bed
In fluid be divided into two flow paths.
Cold-storage bed can also be divided into 8, and 12 or multiple regions, as shown in figure 3, cold-storage bed is 8 regions, each area in top
Domain positive-effect magneto-caloric material is alternately arranged with negative effect magneto-caloric material, lower area material positive-effect magneto-caloric material and negative effect magnetic
Hot material is also to be alternately arranged.
For cold-storage bed due to be added magnetic and degaussing by magnet, length is generally equivalent to or small in existing Magnetic refrigerator
In the length of magnet, and magnet price is valuable, and assembling is difficult, and monolithic magnet length is smaller, which results in the length of cold-storage bed compared with
It is small.
Fig. 4 is the magnetic refrigerating system schematic diagram using this cold-storage bed, this system schematic includes two bi-directional drive reversing arrangements,
First driving reversing arrangement 1 and the second driving reversing arrangement 5, two cool end heat exchangers, the first cool end heat exchanger 21 and second are cold
Hold heat exchanger 22, two hot end heat exchangers, the first hot end heat exchanger 41 and the second hot end heat exchanger 42, a cold-storage bed 3, first
Magnetic generating device 6.
A cyclic process of system includes following 4 processes in Fig. 4:
Process 1: magnetic generating device provides magnetic field to the cold-storage bed of left part, when first area 313, third region 323 and magnetic
When generating device is completely coincident, magnetic generating device stop motion；First area 313, the magneto-caloric material in second area 314 at this time
Temperature increases, and magneto-caloric material temperature reduces in third region 323, the fourth region 324.
Process 2: the first drives the piston in reversing arrangement 1 to move downward, and piston pushes fluid through the first cool end heat exchanger
21, after through first port 311 flow to first area 313, second area 314, then flow to the first hot end through second port 312
Heat exchanger 41 finally flows back to the first driving reversing arrangement 1.
Piston in second driving reversing arrangement 5 moves right, and piston pushes fluid through the second hot end heat exchanger 42, later
The fourth region 324, third region 323 are flowed to through the 4th port 322, then flows to the second cool end heat exchanger through third port 321
22, finally flow back to the second driving reversing arrangement 5.
Two driving reversing arrangement state parameters are identical in this system, and piston is also identical, and wasted work is also identical.When
When piston motion in first driving reversing arrangement 1 arrives left end, second drives the piston motion in reversing arrangement 5 to most right
End, process 2 terminates at this time.
Process 3: magnetic generating device provides magnetic field to the cold-storage bed of left part, when second area 314, the fourth region 324 and magnetic
When generating device is completely coincident, magnetic generating device stop motion；First area 313, the magneto-caloric material in second area 314 at this time
Temperature reduces, and magneto-caloric material temperature increases in third region 323, the fourth region 324.
Process 4: the first drives the piston in reversing arrangement 1 to push promotion fluid through the first hot end heat exchanger 41 to the right, it
Second area 314, first area 313 are flowed to by second port 312, then flows to the heat exchange of the first cold end through first port 311
Device 21 finally flows back to the first driving reversing arrangement 1.
Piston in second driving reversing arrangement 5 pushes fluid through the second hot end heat exchanger 42, after through the 4th port 322
The fourth region 324, third region 323 are flowed to, then flows to the second cool end heat exchanger 22 through third port 321, finally flows back to
Two driving reversing arrangements 5.
Two driving reversing arrangement state parameters are identical in this system, and piston is also identical, and wasted work is also identical.When
When piston motion in first driving reversing arrangement 1 arrives right end, second drives the piston motion in reversing arrangement 5 to most left
End, process 4 terminates at this time.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.With
It is only the preferred embodiment of the present invention described in upper, it is noted that for those skilled in the art, not
Under the premise of being detached from the technology of the present invention principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as this
The protection scope of invention.
Claims (11)
1. a kind of cold-storage bed, it is characterised in that: include:
First chamber (10) and second chamber (20), the first chamber (10) and the second chamber (20) pass through heat insulation layer
(33) separate, and the first chamber (10) includes first area (313) and second area (314), and in the first area
(313) it is provided with the first magnetic working medium in, is provided with the second magnetic working medium in the second area (314)；And the second chamber
(20) include third region (323) and the fourth region (324), and be provided with third magnetic working medium in the third region (323),
The 4th magnetic working medium is provided in the fourth region (324)；And the first magnetic working medium and the 4th magnetic working medium are positive-effect
Magneto-caloric material, and the second magnetic working medium and the third magnetic working medium are negative effect magneto-caloric material；
And the first area (313), the second area (314), the third region (323) and the fourth region
(324) it is also correspondingly arranged on the first magnetic generating device (6), it can phase between the cold-storage bed and the first magnetic generating device (6)
To movement, so that the first magnetic generating device (6) and the first area (313) and the third region (323) are opposite
When, the first magnetic generating device (6) and the second area (314) and the fourth region (324) not relatively；Described
One magnetic generating device (6) and the second area (314) and the homogeneous clock synchronization of the fourth region (324), first magnetic occur
Device (6) and the first area (313) and the third region (323) are not opposite.
2. cold-storage bed according to claim 1, it is characterised in that:
The first chamber (10) and the second chamber (20) are arranged up and down, and the first chamber (10) is located at described second
The top of chamber (20)；And/or the first area (313) is located at top with the third region (323), described second
Region (314) is located at the top of the fourth region (324).
3. cold-storage bed according to claim 1 or 2, it is characterised in that:
The first chamber (10) have first port (311) and second port (312), the first port (311) with it is described
First area (313) connection, so that heat exchanging fluid can be flowed into or to firstth area by the first port (311)
Domain (313), the second port (312) are connected to the second area (314), so that passing through the second port (312) energy
It is enough that heat exchanging fluid is flowed into or from into the second area (314)；
And/or the second chamber has third port (321) and the 4th port (322), the third port (321) and institute
Third region (323) connection is stated, so that heat exchanging fluid can be flowed into or to the third by the third port (321)
Region (323)；4th port (322) is connected to the fourth region (324), so that passing through the 4th port (322)
Heat exchanging fluid can be flowed into or to the fourth region (324).
4. cold-storage bed according to any one of claim 1-3, it is characterised in that:
The cold-storage bed is fixed, and the first magnetic generating device (6) is translatable or rotates and make in the first magnetic generating device
(6) first area (313) and the third region (323) can be in described first simultaneously during being translatable or rotate
Between magnetic generating device (6), or make second area during the first magnetic generating device (6) is translatable or rotates
(314) and the fourth region (324) can be simultaneously between the first magnetic generating device (6).
5. cold-storage bed described in any one of -4 according to claim 1, it is characterised in that:
The first area (313), the second area (314), the third region (323) and the fourth region (324)
A magnetic refrigeration train is formed, and the cold-storage bed includes more than two magnetic refrigeration trains being connected in series.
6. cold-storage bed according to claim 5, it is characterised in that:
The first chamber (10) further include the 5th region (315) being sequentially communicated with one end of the second area (314) and
6th region (316), and the 5th magnetic working medium is provided in the 5th region (315), setting in the 6th region (316)
There is the 6th magnetic working medium；And the second chamber (20) further includes the 7 be sequentially communicated with one end of the fourth region (324)
Region (325) and Section Eight domain (326), and the 7th magnetic working medium, the Section Eight domain are provided in the District 7 domain (325)
(326) the 8th magnetic working medium is provided in；And the 5th magnetic working medium and the 8th magnetic working medium are positive-effect magneto-caloric material, and institute
It states the 6th magnetic working medium and the 7th magnetic working medium is negative effect magneto-caloric material；
And the 5th region (315), the 6th region (316), District 7 domain (325) and Section Eight domain (326) are also corresponding
Be provided with the second magnetic generating device, between the cold-storage bed and the second magnetic generating device also can relative motion so that described
Second magnetic generating device is filled with the homogeneous clock synchronization of the 5th region (315) and the District 7 domain (325), second magnetic
It sets not opposite with the 6th region (316) and the Section Eight domain (326)；The second magnetic generating device and the described 6th
The homogeneous clock synchronization in region (316) and the Section Eight domain (326), the second magnetic generating device and the 5th region (315) and
The District 7 domain (325) is not opposite.
7. cold-storage bed according to claim 6, it is characterised in that:
The cold-storage bed is fixed, and the second magnetic generating device is translatable or rotates and makes flat in the second magnetic generating device
The 5th region (315) and the 6th region (316) can be sent out in second magnetic simultaneously during dynamic or rotation
Between generating apparatus, or make the District 7 domain (325) and institute during the second magnetic generating device is translatable or rotates
Stating Section Eight domain (326) can be simultaneously between the second magnetic generating device.
8. a kind of magnetic refrigerating system, it is characterised in that: including cold-storage bed of any of claims 1-7, described first
The first heat exchanging fluid is flowed in chamber (10), flows the second heat exchanging fluid in the second chamber (20).
9. magnetic refrigerating system according to claim 8, it is characterised in that:
It further include the first heat exchanging pipe (100), when including first port (311) and second port (312), first heat exchange
Pipeline (100) can be respectively communicated with the first port (311) and the second port (312), and in first heat exchanger tube
The position being connected on road (100) with the first port (311) is additionally provided with the first cool end heat exchanger (21), and described first changes
The position being connected on pipe line (100) with the second port (312) is additionally provided with the first hot end heat exchanger (41).
10. magnetic refrigerating system according to claim 8 or claim 9, it is characterised in that:
It further include the second heat exchanging pipe (200), when including third port (321) and the 4th port (322), second heat exchange
Pipeline (200) can be respectively communicated with the third port (321) and the 4th port (322), and in second heat exchanger tube
The position being connected on road (200) with the third port (321) is additionally provided with the second cool end heat exchanger (22), and described second changes
The position being connected on pipe line (200) with the 4th port (322) is additionally provided with the second hot end heat exchanger (42).
11. magnetic refrigerating system according to claim 10, it is characterised in that:
It is located at first cool end heat exchanger (21) and first hot end heat exchanger (41) on first heat exchanging pipe (100)
Between be additionally provided with the first driving reversing arrangement (1)；And/or it is located at second cold end on second heat exchanging pipe (200)
The second driving reversing arrangement (5) is additionally provided between heat exchanger (22) and second hot end heat exchanger (42).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910735617.0A CN110345680A (en) | 2019-08-09 | 2019-08-09 | A kind of cold-storage bed and magnetic refrigerating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910735617.0A CN110345680A (en) | 2019-08-09 | 2019-08-09 | A kind of cold-storage bed and magnetic refrigerating system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066590A (en) * | 2020-08-31 | 2020-12-11 | 中国科学院理化技术研究所 | Magnetic refrigeration system capable of precooling magnetic hot working medium |
| CN112361642A (en) * | 2020-11-03 | 2021-02-12 | 珠海格力电器股份有限公司 | Magnetic regenerator, cold accumulation bed, magnetic refrigeration system and magnetic refrigeration control method |
| CN113551439A (en) * | 2021-07-30 | 2021-10-26 | 珠海格力电器股份有限公司 | Cold accumulator, cold accumulation device and magnetic refrigeration system |
| CN114857674A (en) * | 2022-04-21 | 2022-08-05 | 宁波奥克斯电气股份有限公司 | Refrigerating system and air conditioner |
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2019
- 2019-08-09 CN CN201910735617.0A patent/CN110345680A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066590A (en) * | 2020-08-31 | 2020-12-11 | 中国科学院理化技术研究所 | Magnetic refrigeration system capable of precooling magnetic hot working medium |
| CN112066590B (en) * | 2020-08-31 | 2022-02-22 | 中国科学院理化技术研究所 | Magnetic refrigeration system capable of precooling magnetic hot working medium |
| CN112361642A (en) * | 2020-11-03 | 2021-02-12 | 珠海格力电器股份有限公司 | Magnetic regenerator, cold accumulation bed, magnetic refrigeration system and magnetic refrigeration control method |
| CN113551439A (en) * | 2021-07-30 | 2021-10-26 | 珠海格力电器股份有限公司 | Cold accumulator, cold accumulation device and magnetic refrigeration system |
| CN114857674A (en) * | 2022-04-21 | 2022-08-05 | 宁波奥克斯电气股份有限公司 | Refrigerating system and air conditioner |
| CN114857674B (en) * | 2022-04-21 | 2023-08-04 | 宁波奥克斯电气股份有限公司 | Refrigerating system and air conditioner |
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