CN112629062A - Single-row multistage tandem type refrigerating bin and refrigerating and heating method thereof - Google Patents
Single-row multistage tandem type refrigerating bin and refrigerating and heating method thereof Download PDFInfo
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- CN112629062A CN112629062A CN202011636872.9A CN202011636872A CN112629062A CN 112629062 A CN112629062 A CN 112629062A CN 202011636872 A CN202011636872 A CN 202011636872A CN 112629062 A CN112629062 A CN 112629062A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005057 refrigeration Methods 0.000 claims abstract description 47
- 239000000178 monomer Substances 0.000 claims abstract description 38
- 239000012530 fluid Substances 0.000 claims description 36
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 5
- 150000002910 rare earth metals Chemical class 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 230000008602 contraction Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 239000003507 refrigerant Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 229910052688 Gadolinium Inorganic materials 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229910001371 Er alloy Inorganic materials 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- RTXFQUKNVGWGFF-UHFFFAOYSA-N [Er].[Gd] Chemical compound [Er].[Gd] RTXFQUKNVGWGFF-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- HQWUQSSKOBTIHZ-UHFFFAOYSA-N gadolinium terbium Chemical compound [Gd][Tb] HQWUQSSKOBTIHZ-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 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
-
- 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)
Abstract
The invention discloses a single-row multistage tandem type refrigerating bin, which comprises: the device comprises a bin body, a magnetic field system, a working medium bed and a power device are arranged in the bin body; the magnetic field system comprises at least one pair of magnetic field monomers and a magnetic working medium, the working medium bed is of an airtight structure, the magnetic field monomers are arranged on the outer side of the working medium bed, and the magnetic working medium is fixed inside the working medium bed; the power device is used for driving the magnetic field single body to reciprocate, so that the magnetic working medium is repeatedly magnetized and demagnetized. The invention also discloses a refrigerating and heating method of the single-row multistage tandem refrigerating bin. The single-row multistage series connection type magnetic refrigerator is used, the magnetic working medium can be fully magnetized and demagnetized, the utilization rate of the magnetic heating effect of the magnetic working medium is improved, the maximization of the magnetic heating effect is realized, and the working efficiency of magnetic refrigeration is greatly improved.
Description
Technical Field
The invention relates to the field of room temperature magnetic refrigeration, in particular to a single-row multistage tandem type refrigeration bin and a refrigeration and heating method thereof.
Background
At present, the traditional compression refrigeration can cause damage to the ozone layer, and can indirectly cause the change of the living environment of human beings. Gas compression refrigeration uses a fluorine-free refrigerant, such as R410, according to the montreal protocol and the kyoto protocol. Although the new refrigerant no longer has an adverse effect on ozone, the new refrigerant can cause a greenhouse effect and still destroy the natural environment.
In the traditional compressed gas refrigeration, refrigerant is compressed by a compressor in an isentropic manner, then enters a condenser for cooling, enters a throttle valve, finally exits the throttle valve and enters an evaporator, and the refrigerant circularly works according to the principle that four parts of the whole thermodynamic cycle are completed when the refrigerant passes through different mechanical parts. The thermodynamic cycle of room temperature magnetic field refrigeration is completed in the heat accumulator, the refrigerant, namely the magnetic working medium, is not moved, and the thermodynamic cycle can be completed only by the change of the magnetic field intensity, so that the thermal fluid circulation system for magnetic field refrigeration greatly improves the refrigeration working efficiency.
However, the traditional magnetic refrigeration method has a complex mechanical structure, and the demagnetization of the magnetic working medium in the room-temperature magnetic field refrigeration is incomplete, so that the magnetocaloric effect is incomplete.
Disclosure of Invention
The invention aims to provide a single-row multistage series type refrigerating bin and a refrigerating and heating method thereof.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
single-row multistage tandem refrigeration bin, includes: the device comprises a bin body, a magnetic field system, a working medium bed and a power device are arranged in the bin body; the magnetic field system comprises at least one pair of magnetic field monomers and a magnetic working medium, the working medium bed is of an airtight structure, the magnetic field monomers are arranged on the outer side of the working medium bed, and the magnetic working medium is fixed inside the working medium bed; the power device is used for driving the magnetic field single body to reciprocate, so that the magnetic working medium is repeatedly magnetized and demagnetized.
Further, the magnetic field system comprises a plurality of pairs of magnetic field monomers and magnetic working media, gaps are reserved among the magnetic field monomers, and the magnetic fields of the plurality of magnetic field monomers have the same size and the same direction; a plurality of magnetic working media are fixed inside the working medium bed, and gaps are reserved among the magnetic working media.
Furthermore, flanges are welded at two ends of the working medium bed, the filter screen is installed on the flanges, a supporting plate is connected to the outer side of the flanges, and the bottom of the supporting plate is fixed to the refrigerating bin.
Furthermore, the device also comprises a programmable controller used for controlling the working medium bed to repeatedly enter and exit the magnetic field monomer magnetic field.
Further, the magnetic field single body is fixed on a base, and the base is provided with a gear groove; the power device comprises: the gear is meshed with the gear groove and used for driving the base to move; the motor provides power for the speed reducer, the speed reducer drives the gear to rotate, the gear drives the gear groove to reciprocate, and the gear groove drives the magnetic field monomer to reciprocate, so that the magnetic working medium is repeatedly magnetized/demagnetized; the motor is connected with the programmable controller through a signal wire, and the programmable controller is used for controlling the starting, the stopping and the rotating direction of the motor.
Further, a diode refrigerating sheet for controlling the initial temperature of the refrigerating bin is arranged in the bin body, and the diode refrigerating sheet is provided with a temperature sensor.
Furthermore, the port of the working medium bed is connected to the circulating system of the external room temperature magnetic refrigerator through a pipeline.
Furthermore, the magnetic working medium is a rare earth metal wire or a rare earth metal alloy wire, and the diameter of the magnetic working medium is 0.1mm-1 mm.
The refrigerating and heating method of the single-row multistage tandem refrigerating bin comprises the following steps:
the programmable controller starts the motor to rotate in the forward direction, the motor and the speed reducer drive the gear to rotate, the gear drives the base and the working medium bed to move, and when the working medium bed drives the two magnetic working media to move from the magnetic field position of the magnetic field monomer to the gap position, the magnetic working media are demagnetized, and the magnetic working media are cooled;
the magnetic working medium cools the heat exchange fluid, and the cooled heat exchange fluid enters a regenerator of a circulating system of the room temperature magnetic refrigerator through a pipeline, so that the temperature of the regenerator is reduced, and refrigeration is realized;
the programmable controller starts the motor to rotate reversely, the base drives the working medium bed to move, the working medium bed drives the two magnetic working media to move to the magnetic field position of the magnetic field monomer from the gap position, the magnetic working media are magnetized, the magnetic working media are heated, the heated heat exchange fluid enters the heat exchanger, the temperature of the heat exchanger is raised, and heating is achieved;
the magnetic working medium heats the heat exchange fluid, and the heated heat exchange fluid enters a heat exchanger of a circulating system of the room temperature magnetic refrigerator through a pipeline; the heat exchange fluid realizes refrigeration or heating through heat exchange in the room-temperature magnetic refrigerator.
Preferably, the programmable controller simultaneously controls the stretching frequency of the power device to control the time when the magnetic working medium enters or exits the magnetic field, the magnetic working medium is repeatedly magnetized and demagnetized, and the magnetic working medium realizes continuous refrigeration and heating by changing the temperature of the heat exchange fluid.
The invention has the technical effects that:
1. the single-row multistage serial refrigerating bin provided by the invention is used in the single-row multistage serial magnetic refrigerator, can fully magnetize and demagnetize the magnetic working medium, improves the utilization rate of the magnetic heat effect of the magnetic working medium, realizes the maximization of the magnetic heat effect, and greatly improves the working efficiency of magnetic refrigeration.
2. In the traditional compressor refrigeration, a refrigerant is compressed by the compressor in an isentropic manner, then enters a condenser for cooling, enters a throttle valve, finally exits the throttle valve, enters an evaporator, and works according to the cycle, and four parts of the whole thermodynamic cycle are completed when the refrigerant passes through different mechanical parts. In the invention, the single-row multistage tandem type refrigerating bin is used on the magnetic refrigerator, the thermodynamic cycle of the magnetic refrigerator is completed in the refrigerating bin and the heat exchange system, and the thermodynamic cycle can be completed through the change of the magnetic field intensity, thereby greatly improving the refrigerating work efficiency.
Drawings
FIG. 1 is a schematic structural view of a single-row multistage tandem refrigeration bin according to the present invention;
FIG. 2 is a schematic diagram of three magnetic field units arranged outside a working medium bed in the invention;
FIG. 3 is a schematic view of the single-row multi-stage tandem refrigeration compartment of the present invention in use;
FIG. 4 is a schematic diagram of the heat exchange of a single-row multi-stage tandem refrigeration unit of the present invention.
Detailed Description
The following description sufficiently illustrates specific embodiments of the invention to enable those skilled in the art to practice and reproduce it.
Fig. 1 is a schematic structural view of a single-row multistage tandem refrigeration compartment according to the present invention.
Single-row multistage tandem refrigeration bin, includes: a programmable controller and a bin body 1; the interior of the bin body 1 is provided with a magnetic field system 11, a working medium bed 12, a power device 13 and a diode refrigerating sheet 17.
In the preferred embodiment, the magnetic field system 11 includes: the two magnetic field single bodies are arranged on the outer side of the same working medium bed 12, a gap is reserved between the two magnetic field single bodies, the magnetic fields of the two magnetic field single bodies are identical in size and direction. The magnetic field monomer adopts neodymium iron boron permanent magnet. Two magnetic field monomers are fixed on the base, and the base is provided with a gear groove.
The working medium bed 12 is of a closed structure and is connected with the circulating system 2 through a pipeline, flanges 14 are welded at two ends of the working medium bed, and a filter screen is installed on each flange 14; the outer side of the flange 14 is connected with a supporting plate 15, and the bottom of the supporting plate 15 is fixed on the refrigerating bin 1; the two magnetic field monomers are arranged on the outer side of the working medium bed 12, the two magnetic working media 16 are fixed inside the working medium bed 12, and a gap is reserved between the two magnetic working media 16. Under the driving of the power device 13, the relative position of the magnetic medium 16 and the magnetic field monomer changes, when the magnetic medium 16 moves to the gap position, the magnetic medium (magnetic material) 16 demagnetizes, and the magnetic medium 16 cools; when the magnetic working medium 16 moves from the gap position to the magnetic field position of the magnetic field monomer, the magnetic working medium 16 is magnetized, the magnetic entropy is reduced, the lattice entropy is increased, the atom movement is intensified, and the temperature of the magnetic material is increased. The magnetic working medium 16 is made of rare earth metal gadolinium wires with the diameter of 0.1mm-1mm, the gadolinium component accounts for more than 99%, and gadolinium terbium and gadolinium erbium alloy wires with the diameter of 0.1mm-1mm can be assembled in sections.
The power device 13 is used for reciprocating motion of the magnetic field single body, so that the magnetic working medium 16 is repeatedly magnetized/demagnetized. The power device 13 comprises a motor, a speed reducer and a gear, and the gear is meshed with the gear groove and used for driving the base to move. The motor provides power for the speed reducer, and the speed reducer drives the gear to rotate. The motor is connected with the programmable controller through a signal wire and is powered by an external power supply.
The diode refrigeration piece 17 is used for controlling the initial temperature of the bin body 1 and is provided with a temperature sensor, the temperature inside the bin body 1 reaches 20 ℃ to start refrigeration, and the magnetocaloric effect of the magnetic working medium 16 is protected.
As shown in FIG. 2, it is a schematic diagram of the present invention in which three magnetic field units are disposed outside the working medium bed 12.
In the present invention, at least one magnetic field monomer is disposed outside the working medium bed 12, and in the preferred embodiment, three magnetic field monomers are disposed outside the working medium bed 12. Gaps are reserved among the three magnetic field monomers, and the three magnetic working media 16 are fixed inside the working medium bed. The magnetic fields of the three magnetic field monomers are the same in size and consistent in direction.
If the magnetic field system is provided with two magnetic field monomers, a gap is reserved between the two magnetic field monomers, and the magnetic fields of the two magnetic field monomers have the same size and the same direction; two magnetic working media 16 are fixed inside the working medium bed 12, and a gap is left between the two magnetic working media.
The refrigerating and heating method of the single-row multistage tandem refrigerating bin specifically comprises the following steps:
step A: the programmable controller starts the motor to rotate in the forward direction, the motor and the speed reducer drive the gear to rotate, the gear drives the base and the working medium bed 12 to move, when the working medium bed 12 drives the two magnetic working media 16 to move from the magnetic field position of the magnetic field monomer to the gap position, the magnetic working media 16 demagnetize, and the magnetic working media 16 cool;
and B: the magnetic working medium 16 cools the heat exchange fluid, and the cooled heat exchange fluid enters the regenerator 32 of the circulating system 2 of the room temperature magnetic refrigerator through the pipeline, so that the temperature of the regenerator 32 is reduced, and refrigeration is realized;
and C: the programmable controller starts the motor to rotate reversely, the base drives the working medium bed 12 to move, the working medium bed 12 drives the two magnetic working media 16 to move to the magnetic field position of the magnetic field monomer from the gap position, the magnetic working media 16 are magnetized, the magnetic working media 16 are heated, the heated heat exchange fluid enters the heat exchanger 31, the temperature of the heat exchanger 31 is raised, and heating is achieved;
step D: the magnetic working medium 16 heats the heat exchange fluid, and the heated heat exchange fluid enters the heat exchanger 31 of the circulating system 2 of the room temperature magnetic refrigerator through the pipeline;
step E: the heat exchange fluid realizes refrigeration or heating through heat exchange in the room-temperature magnetic refrigerator.
The programmable controller controls the working medium bed 12 to repeatedly enter and exit the magnetic field of the magnetic field monomer, the magnetic working medium 16 is repeatedly magnetized and demagnetized, and the magnetic working medium 16 realizes continuous refrigeration and heating by changing the temperature of the heat exchange fluid.
FIG. 3 is a schematic view showing the usage status of the single-row multistage tandem refrigeration compartment of the present invention; fig. 4 is a schematic diagram showing the heat exchange of the single-row multi-stage tandem refrigeration compartment of the present invention.
The single-row multistage tandem type refrigerating bin is used on a single-row multistage tandem type magnetic refrigerator, the single-row multistage tandem type refrigerating bin is provided with two magnetic field single bodies, and two magnetic working media 16 are fixed inside the working medium bed 12.
The single-row multistage series magnetic refrigerator further comprises: a circulating system 2 and a heat exchange system; the refrigeration bin changes the temperature of the magnetic working medium 16 by using a magnetocaloric effect and transfers the cold energy or the heat energy generated by the magnetic working medium 16 to the heat exchange fluid; the circulating system 2 is connected with the heat exchange system through a pipeline and is used for conveying heat exchange fluid to the heat exchange system; the heat exchange system is used for exchanging cold or heat brought out by the heat exchange fluid.
1. The circulation system 2 includes: a programmable controller, a vacuum pressure gauge 21, a diaphragm water pump 22, a first electromagnetic valve 23, a second electromagnetic valve 24, a third electromagnetic valve 25 and a fourth electromagnetic valve 26; the vacuum pressure gauge 21, the first electromagnetic valve 23, the second electromagnetic valve 24, the third electromagnetic valve 25 and the fourth electromagnetic valve 26 are sequentially arranged on a pipeline and are powered by an external power supply.
The first electromagnetic valve 23, the third electromagnetic valve 25 and the diaphragm water pump 22 are connected in series on a pipeline and connected between the heat exchanger 31 and the cold accumulator 32; the second electromagnetic valve 24, the fourth electromagnetic valve 26 and the diaphragm water pump 22 are connected in series on the pipeline and connected between the heat exchanger 31 and the cold accumulator 32; the pipeline at one end of the working medium bed 12 is connected between the first electromagnetic valve 23 and the third electromagnetic valve 25, and the pipeline at the other end is connected between the second electromagnetic valve 24 and the fourth electromagnetic valve 26.
The programmable controller is respectively connected with the motor, the vacuum pressure gauge 21, the diaphragm water pump 22, the first electromagnetic valve 23, the second electromagnetic valve 24, the third electromagnetic valve 25 and the fourth electromagnetic valve 26 through signal lines and used for controlling starting and stopping. The programmable controller simultaneously controls the expansion frequency of the power device 13 to control the time when the magnetic working medium 16 enters or exits the magnetic field.
The working medium bed 12, the pipeline, the heat exchanger 31 and the cold accumulator 32 are filled with heat exchange fluid, and the main component of the heat exchange fluid is H2O, a small amount of alcohol may be added. The first electromagnetic valve 23, the second electromagnetic valve 24, the third electromagnetic valve 25 and the fourth electromagnetic valve 26 are direct-conduction electromagnetic valves, and the circulation of the heat exchange fluid is controlled by the four direct-conduction electromagnetic valves. When the magnetic working medium 16 heats, the third electromagnetic valve 25 and the fourth electromagnetic valve 26 are opened, and the first electromagnetic valve 23 and the second electromagnetic valve 24 are closed; when the magnetic working medium 16 is refrigerated, the first electromagnetic valve 23 and the second electromagnetic valve 24 are opened, and the third electromagnetic valve 25 and the fourth electromagnetic valve 26 are closed.
The vacuum pressure gauge 21 is used for measuring the pressure of the heat exchange circulation system 2.
The diaphragm water pump 22 is used as a power source of the heat exchange fluid to provide power for the cold and hot circulation.
2. The heat exchange system 3 includes: a heat exchanger 31 and a regenerator 32, wherein the heat exchanger 31 is connected to the pipeline between the third electromagnetic valve 25 and the fourth electromagnetic valve 26, and the regenerator 32 is connected to the pipeline between the first electromagnetic valve 23 and the second electromagnetic valve 24.
The heat exchanger 31 and the regenerator 32 are provided with thin film platinum resistors for recording temperature changes. A refrigeration case 33 is provided outside the regenerator 32.
The heat exchange method for single-row multistage series magnetic refrigerator includes the following steps:
step 1: the programmable controller starts the diaphragm water pump 22 at one side of the cold accumulator 32, opens the first electromagnetic valve 23 and the second electromagnetic valve 24, and closes the third electromagnetic valve 25 and the fourth electromagnetic valve 26;
step 2: the programmable controller starts the motor to rotate in the forward direction, the motor and the speed reducer drive the gear to rotate, the gear drives the base and the working medium bed 12 to move, when the working medium bed 12 drives the two magnetic working media 16 to move from the magnetic field position of the magnetic field monomer to the gap position, the magnetic working media 16 demagnetize, and the magnetic working media 16 cool;
and step 3: the magnetic working medium 16 absorbs the heat of the heat exchange fluid in the working medium bed 12, the cooled heat exchange fluid enters the cold accumulator 32, the temperature of the cold accumulator 32 is reduced, and refrigeration is realized;
and 4, step 4: the programmable controller starts the membrane water pump 22 at one side of the heat exchanger 31, opens the third electromagnetic valve 25 and the fourth electromagnetic valve 26, and closes the first electromagnetic valve 23 and the second electromagnetic valve 24;
and 5: the programmable controller starts the motor to rotate reversely, the base drives the working medium bed 12 to move, the working medium bed 12 drives the two magnetic working media 16 to move from the gap position to the magnetic field position of the magnetic field monomer, the magnetic working media 16 are magnetized, and the temperature of the magnetic working media 16 is increased;
step 6: the magnetic working medium 16 heats the heat exchange fluid in the working medium bed 12, the heated heat exchange fluid enters the heat exchanger 31, and the temperature of the heat exchanger 31 is raised to realize heating;
and 7: the programmable controller controls the magnetic field of the working medium bed 12 to repeatedly enter and exit the magnetic field monomer through the power device 13, the magnetic working medium 16 is repeatedly magnetized and demagnetized, and the magnetic working medium 16 changes the temperature of the heat exchange fluid to realize continuous refrigeration and heating.
The start and stop of the diaphragm water pump 22 and the on-off time of the electromagnetic valves (the first electromagnetic valve 23, the second electromagnetic valve 24, the third electromagnetic valve 25 and the fourth electromagnetic valve 26) are controlled by the programmable controller, the heat exchange fluid is driven by the diaphragm pump to flow into the heat exchanger 31 at the hot end and the cold accumulator 32 at the cold end, and the temperatures of the heat exchanger 31 and the cold accumulator 32 are measured by the thin film platinum resistor, so that the refrigeration and the heating are realized.
The terminology used herein is for the purpose of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (10)
1. A single-row multistage tandem refrigeration bin, comprising: the device comprises a bin body, a magnetic field system, a working medium bed and a power device are arranged in the bin body; the magnetic field system comprises at least one pair of magnetic field monomers and a magnetic working medium, the working medium bed is of an airtight structure, the magnetic field monomers are arranged on the outer side of the working medium bed, and the magnetic working medium is fixed inside the working medium bed; the power device is used for driving the magnetic field single body to reciprocate, so that the magnetic working medium is repeatedly magnetized and demagnetized.
2. The single-row multistage series-connection refrigerating bin as claimed in claim 1, wherein the magnetic field system comprises a plurality of pairs of magnetic field monomers and a magnetic working medium, gaps are reserved between the magnetic field monomers, and the magnetic fields of the plurality of magnetic field monomers have the same size and the same direction; a plurality of magnetic working media are fixed inside the working medium bed, and gaps are reserved among the magnetic working media.
3. The single-row multistage tandem type refrigerating bin as claimed in claim 1, wherein flanges are welded to both ends of the working medium bed, filter screens are installed on the flanges, a support plate is connected to the outer sides of the flanges, and the bottom of the support plate is fixed to the refrigerating bin.
4. The single-row multistage series refrigeration bin of claim 1, further comprising a programmable controller for controlling the repeated entrance and exit of the working fluid bed to and from the magnetic field monomer magnetic field.
5. The single-row multistage tandem refrigeration silo according to claim 1, wherein the magnetic field unit is fixed on a base, and the base is provided with a gear groove; the power device comprises: the gear is meshed with the gear groove and used for driving the base to move; the motor provides power for the speed reducer, the speed reducer drives the gear to rotate, the gear drives the gear groove to reciprocate, and the gear groove drives the magnetic field monomer to reciprocate, so that the magnetic working medium is repeatedly magnetized/demagnetized; the motor is connected with the programmable controller through a signal wire, and the programmable controller is used for controlling the starting, the stopping and the rotating direction of the motor.
6. The single-row multistage series refrigeration bin as claimed in claim 1, wherein a diode refrigeration sheet for controlling the starting temperature of the refrigeration bin is arranged in the bin body, and the diode refrigeration sheet is provided with a temperature sensor.
7. The single-row multistage tandem refrigeration silo according to claim 1, characterized in that the ports of the working medium bed are connected to the circulation system of the external room temperature magnetic refrigerator through pipelines.
8. The single-row multistage tandem type refrigeration bin according to claim 1, wherein the magnetic medium is a rare earth metal wire or a rare earth metal alloy wire, and the diameter is 0.1mm to 1 mm.
9. The refrigerating and heating method of the single-row multistage tandem refrigerating chamber as claimed in any one of claims 1 to 8, comprising:
the programmable controller starts the motor to rotate in the forward direction, the motor and the speed reducer drive the gear to rotate, the gear drives the base and the working medium bed to move, and when the working medium bed drives the two magnetic working media to move from the magnetic field position of the magnetic field monomer to the gap position, the magnetic working media are demagnetized, and the magnetic working media are cooled;
the magnetic working medium cools the heat exchange fluid, and the cooled heat exchange fluid enters a regenerator of a circulating system of the room temperature magnetic refrigerator through a pipeline, so that the temperature of the regenerator is reduced, and refrigeration is realized;
the programmable controller starts the motor to rotate reversely, the base drives the working medium bed to move, the working medium bed drives the two magnetic working media to move to the magnetic field position of the magnetic field monomer from the gap position, the magnetic working media are magnetized, the magnetic working media are heated, the heated heat exchange fluid enters the heat exchanger, the temperature of the heat exchanger is raised, and heating is achieved;
the magnetic working medium heats the heat exchange fluid, and the heated heat exchange fluid enters a heat exchanger of a circulating system of the room temperature magnetic refrigerator through a pipeline; the heat exchange fluid realizes refrigeration or heating through heat exchange in the room-temperature magnetic refrigerator.
10. The method as claimed in claim 9, wherein the programmable controller controls the expansion and contraction frequency of the power device to control the time when the magnetic medium enters or exits the magnetic field, the magnetic medium is repeatedly magnetized and demagnetized, and the magnetic medium realizes continuous refrigeration and heating by changing the temperature of the heat exchange fluid.
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| CN202011636872.9A CN112629062A (en) | 2020-12-31 | 2020-12-31 | Single-row multistage tandem type refrigerating bin and refrigerating and heating method thereof |
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| CN202011636872.9A CN112629062A (en) | 2020-12-31 | 2020-12-31 | Single-row multistage tandem type refrigerating bin and refrigerating and heating method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115435509A (en) * | 2022-09-09 | 2022-12-06 | 山东大学 | Magnetic refrigeration device and method based on bipolar magnetic card material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150168030A1 (en) * | 2013-12-17 | 2015-06-18 | Astronautics Corporation Of America | Magnetic Refrigeration System With Improved Flow Efficiency |
| CN106240304A (en) * | 2015-06-08 | 2016-12-21 | 埃贝斯佩歇气候控制***有限责任两合公司 | Thermoregulator, particularly vehicle thermoregulator |
| CN109386991A (en) * | 2017-08-10 | 2019-02-26 | 株式会社藤仓 | Wire rod, heat exchanger and magnetic heat pump assembly |
| CN109855325A (en) * | 2018-11-06 | 2019-06-07 | 珠海格力电器股份有限公司 | Magnetic refrigerating system and refrigerating plant |
| JP2020051693A (en) * | 2018-09-27 | 2020-04-02 | ダイキン工業株式会社 | Magnetic refrigeration system |
| CN214199265U (en) * | 2020-12-31 | 2021-09-14 | 包头稀土研究院 | Single-row multistage tandem type refrigerating bin |
-
2020
- 2020-12-31 CN CN202011636872.9A patent/CN112629062A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150168030A1 (en) * | 2013-12-17 | 2015-06-18 | Astronautics Corporation Of America | Magnetic Refrigeration System With Improved Flow Efficiency |
| CN106240304A (en) * | 2015-06-08 | 2016-12-21 | 埃贝斯佩歇气候控制***有限责任两合公司 | Thermoregulator, particularly vehicle thermoregulator |
| CN109386991A (en) * | 2017-08-10 | 2019-02-26 | 株式会社藤仓 | Wire rod, heat exchanger and magnetic heat pump assembly |
| JP2020051693A (en) * | 2018-09-27 | 2020-04-02 | ダイキン工業株式会社 | Magnetic refrigeration system |
| CN109855325A (en) * | 2018-11-06 | 2019-06-07 | 珠海格力电器股份有限公司 | Magnetic refrigerating system and refrigerating plant |
| CN214199265U (en) * | 2020-12-31 | 2021-09-14 | 包头稀土研究院 | Single-row multistage tandem type refrigerating bin |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115435509A (en) * | 2022-09-09 | 2022-12-06 | 山东大学 | Magnetic refrigeration device and method based on bipolar magnetic card material |
| CN115435509B (en) * | 2022-09-09 | 2023-11-03 | 山东大学 | Magnetic refrigeration device and method based on bipolar magnetic card material |
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