CN116164434B - Layered regenerator for room temperature magnetic refrigerator, room temperature magnetic refrigerator and heat exchange method - Google Patents
Layered regenerator for room temperature magnetic refrigerator, room temperature magnetic refrigerator and heat exchange methodInfo
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- CN116164434B CN116164434B CN202211618799.1A CN202211618799A CN116164434B CN 116164434 B CN116164434 B CN 116164434B CN 202211618799 A CN202211618799 A CN 202211618799A CN 116164434 B CN116164434 B CN 116164434B
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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
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
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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
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/06—Superheaters
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
本发明公开了一种室温磁制冷机用分层回热器，包括：回热器本体、磁制冷工质，磁制冷工质设置在在回热器本体的内腔，磁制冷工质将内腔分为第一内腔、第二内腔；回热器本体的左端设置有热入口、冷出口，热入口连通第一内腔，冷出口连通第二内腔；回热器本体右端设置有热出口、冷入口，热出口连通第一内腔，冷入口连通第二内腔。本发明还公开了一种室温磁制冷机和室温磁制冷机换热方法。本发明利用磁制冷工质及密封件将回热器分成两部分，将内部换热流体的热循环和冷循环完全分开，有效提高了制冷效果。
The present invention discloses a layered regenerator for a room-temperature magnetic refrigerator, comprising: a regenerator body, a magnetic refrigerant, the magnetic refrigerant being arranged in the inner cavity of the regenerator body, and the magnetic refrigerant dividing the inner cavity into a first inner cavity and a second inner cavity; a hot inlet and a cold outlet being arranged at the left end of the regenerator body, the hot inlet being connected to the first inner cavity, and the cold outlet being connected to the second inner cavity; a hot outlet and a cold inlet being arranged at the right end of the regenerator body, the hot outlet being connected to the first inner cavity, and the cold inlet being connected to the second inner cavity. The present invention also discloses a room-temperature magnetic refrigerator and a heat exchange method for a room-temperature magnetic refrigerator. The present invention utilizes a magnetic refrigerant and a seal to divide the regenerator into two parts, completely separating the hot cycle and the cold cycle of the internal heat exchange fluid, thereby effectively improving the cooling effect.
Description
Technical Field
The invention belongs to the technical field of room temperature magnetic refrigeration, and particularly relates to a layered regenerator for a room temperature magnetic refrigerator, the room temperature magnetic refrigerator and a heat exchange method.
Background
The room temperature magnetic refrigeration is a solid refrigeration technology, and is a novel refrigeration technology. With the development of new materials and new technologies, the development of room temperature magnetic refrigeration technology has been generally emphasized and has made great progress in recent decades. The room temperature magnetic refrigeration technology meets the current sustainable development time requirement and is considered as a green refrigeration technology hopefully replacing the traditional refrigeration technology. The room temperature magnetic refrigeration technology is a technology for realizing refrigeration by utilizing the magnetocaloric effect of a magnetic refrigeration material, and according to the magnetocaloric effect principle, the magnetic refrigeration material can generate a phenomenon of heating or cooling under the action of a changed magnetic field, and the magnetocaloric effect of the magnetic refrigeration material reaches the maximum value near the Curie temperature.
Room temperature magnetic refrigerators generally consist of a magnetic field system, a regenerator, a heat exchanger, a heat exchange fluid, and a driver, etc., wherein the regenerator is one of the key components of the room temperature magnetic refrigerator. The room temperature magnetic refrigerator generally adopts an active regenerative heat recovery (AMR) technology to realize refrigeration, which requires heat exchange fluid to flow through the regenerator in forward and reverse directions when the regenerator filled with magnetic refrigeration materials is magnetized and demagnetized, so as to form a certain temperature gradient in the magnetic refrigeration working medium in the regenerator, thus forming a high temperature end and a low temperature end at two ends of the regenerator, forming a larger temperature difference at two ends, simultaneously forming a larger temperature difference at two ends of the heat exchange fluid, and realizing refrigeration. The heat regenerator is periodically magnetized and demagnetized through a magnetic field and is matched with heat exchange fluid to flow in a reciprocating mode, a temperature gradient is formed in the heat regenerator, and a high-temperature end and a low-temperature end are formed at two ends of the heat regenerator, so that refrigeration is achieved.
At first, two ends of the regenerator of the room temperature magnetic refrigerator are respectively provided with an inlet and an outlet, the heat circulation and the cold circulation flow through the same inlet and outlet, and the heat exchange fluid is in a mixed flow state, then, two ends of the regenerator are respectively provided with two ports for cold circulation and heat circulation, at the moment, the heat exchange fluid is still in a mixed state in the regenerator although the cold circulation and the heat circulation are separated outside the regenerator. Although two inlets and outlets are respectively arranged at two ends of the heat regenerator, the two inlets and outlets are divided into a cold flow port and a hot flow port, the flow direction is fixed, and meanwhile, the external cold flow circulation and the external hot flow circulation are also separated, so that the refrigerating effect is improved. However, the heat exchange fluid in the heat regenerator still has a mixing phenomenon, and has a certain influence on the refrigerating effect.
Disclosure of Invention
The invention aims to provide a layered heat regenerator for a room temperature magnetic refrigerator, the room temperature magnetic refrigerator and a heat exchange method, wherein the heat regenerator is divided into two parts by utilizing a magnetic refrigeration working medium and a sealing piece, so that the heat circulation and the cold circulation of an internal heat exchange fluid are completely separated, and the refrigeration effect is effectively improved.
In order to achieve the above purpose, the technical solution adopted by the invention is as follows:
The layered heat regenerator for the room temperature magnetic refrigerator comprises a heat regenerator body and a magnetic refrigeration working medium, wherein the magnetic refrigeration working medium is arranged in an inner cavity of the heat regenerator body, the inner cavity is divided into a first inner cavity and a second inner cavity by the magnetic refrigeration working medium, a hot inlet and a cold outlet are arranged at the left end of the heat regenerator body, the hot inlet is communicated with the first inner cavity, the cold outlet is communicated with the second inner cavity, a hot outlet and a cold inlet are arranged at the right end of the heat regenerator body, the hot outlet is communicated with the first inner cavity, and the cold inlet is communicated with the second inner cavity.
Further, the shape of the heat regenerator body is cylindrical or square, and the shape of the magnetic refrigeration working medium is a flat plate shape, a comb tooth shape, a zigzag shape or a square wave shape.
The room temperature magnetic refrigerator comprises a heat regenerator body, a magnetic refrigeration working medium, a magnet, an electromagnetic valve, a first driving pump, a second driving pump, a cold end heat exchanger, a hot end heat exchanger and a buffer, wherein the magnetic refrigeration working medium is arranged in an inner cavity of the heat regenerator body, the inner cavity is divided into a first inner cavity and a second inner cavity by the magnetic refrigeration working medium, a hot inlet and a cold outlet are arranged at the left end of the heat regenerator body, the hot inlet is communicated with the first inner cavity, the cold outlet is communicated with the second inner cavity, a hot outlet and a cold inlet are arranged at the right end of the heat regenerator body, the hot inlet is communicated with the first inner cavity, the cold inlet is communicated with the second inner cavity, a magnetic field cavity is axially arranged in the middle of the magnet, the heat regenerator body is arranged in the magnetic field cavity, the hot inlet, the cold outlet, the hot outlet and the cold inlet are respectively provided with the electromagnetic valve, an input port and an output port of the cold end heat exchanger are respectively connected with the cold outlet and the hot inlet through pipelines, the first driving pump is arranged at the input port of the cold end heat exchanger, the output port of the hot end heat exchanger is respectively connected with the hot outlet and the cold inlet through pipelines, the second driving pump is arranged at the input port of the hot end heat exchanger, the output port of the heat exchanger respectively, and the buffer is arranged at the output port of the cold end heat exchanger respectively.
A heat exchange method of a room temperature magnetic refrigerator, comprising:
After the magnetic refrigeration working medium in the heat regenerator body is magnetized, circulating fluid is heated by the magnetic refrigeration working medium, electromagnetic valves at a hot inlet and a hot outlet are opened, the electromagnetic valves at a cold inlet and a cold outlet are closed, a second driving pump is started, a first driving pump is stopped, the heat circulating fluid in a first inner cavity flows rightwards and enters a hot end heat exchanger for heat exchange, and the heat circulating fluid enters a buffer at one side of the hot end heat exchanger after flowing through the hot end heat exchanger and is stored in the buffer at one side of the hot end heat exchanger;
After the magnetic refrigeration working medium in the heat regenerator body demagnetizes, the circulating fluid is cooled by the magnetic refrigeration working medium, the electromagnetic valves of the cold inlet and the cold outlet are opened, the electromagnetic valves at the hot inlet and the hot outlet are closed, the first driving pump is started, the second driving pump is stopped, the cold circulating fluid in the second inner cavity flows leftwards and enters the cold end heat exchanger for heat exchange, and the cold circulating fluid enters and is stored in the buffer at one side of the cold end heat exchanger after flowing through the cold end heat exchanger.
Preferably, in the magnetizing process of the magnetic refrigeration working medium, the electromagnetic valves of the cold inlet and the cold outlet are closed, the circulating fluid is static, and in the demagnetizing process of the magnetic refrigeration working medium, the electromagnetic valves at the hot inlet and the hot outlet are closed, and the circulating fluid is static.
Preferably, in the running process of the room temperature magnetic refrigerator, a temperature gradient is generated in the heat regenerator body step by step through the reciprocating flow of the circulating fluid, a temperature difference is generated at two ends of the heat regenerator body, the heat of the cold end heat exchanger is transferred to the hot end step by step through the circulating fluid, and the heat is discharged through the hot end heat exchanger, so that refrigeration is realized.
The technical effects of the invention include:
The layered regenerator for the room temperature magnetic refrigerator divides an inner space (inner cavity) into two parts for hot fluid circulation and cold fluid circulation, and not only forms separate flow of hot fluid and cold fluid outside the regenerator, but also realizes separate flow of the hot fluid and the cold fluid inside the layered regenerator for the magnetic refrigerator, so that the flowing direction of the hot fluid and the flowing direction of the cold fluid are both oriented, and the heat exchange efficiency is improved.
The invention uses magnetic refrigeration working medium to divide the inner cavity of the layered heat regenerator for the magnetic refrigerator into two parts, wherein one part passes through the thermal circulation fluid, and the other part passes through the cold circulation fluid, so that the separation of the thermal fluid and the cold fluid is realized in the heat regenerator.
The two ends of the layered heat regenerator for the magnetic refrigerator are respectively provided with the outlet interface and the inlet interface, the outlet interface and the inlet interface at one end are respectively provided with the hot inlet and the cold outlet, and the outlet interface and the inlet interface at the other end are respectively provided with the hot outlet and the cold inlet, so that the hot circulation and the cold circulation of heat exchange fluid outside the layered heat regenerator for the magnetic refrigerator are completely separated.
Drawings
FIG. 1 is a schematic view of a layered regenerator for a magnetic refrigerator according to the present invention;
FIG. 2a is a schematic longitudinal section view of a magnetic refrigeration medium in a flat plate shape and a regenerator body in a cylindrical shape in the invention;
FIG. 2b is a schematic diagram of a longitudinal section of a comb-shaped magnetic refrigeration medium and a cylindrical regenerator body according to the present invention;
FIG. 2c is a schematic diagram of a longitudinal section of a magnetic refrigeration medium with a zigzag shape and a regenerator body with a cylindrical shape in the present invention;
FIG. 2d is a schematic diagram of a longitudinal section of a magnetic refrigeration medium in square waveform and a regenerator body in cylindrical shape in the present invention;
FIG. 3a is a schematic longitudinal section view of a magnetic refrigeration medium in a flat plate shape and a regenerator body in a square cylinder shape;
FIG. 3b is a schematic diagram of a longitudinal section of a comb-shaped magnetic refrigeration working medium and a square cylinder-shaped regenerator body in the invention;
FIG. 3c is a schematic diagram of a longitudinal section of a magnetic refrigeration working medium with a zigzag shape and a regenerator body with a square cylinder shape in the invention;
FIG. 3d is a schematic diagram of a longitudinal section of a square waveform magnetic refrigeration medium and a square cylinder regenerator body according to the present invention;
Fig. 4 is a schematic structural diagram of a magnetic refrigerator using a layered regenerator in accordance with the present invention.
Detailed Description
The following description fully illustrates the specific embodiments of the invention to enable those skilled in the art to practice and reproduce it.
As shown in fig. 1, a schematic structure of a layered regenerator for a magnetic refrigerator according to the present invention is shown.
The layered heat regenerator for the room temperature magnetic refrigerator comprises a heat regenerator body 1 and a magnetic refrigeration working medium 2, wherein the magnetic refrigeration working medium 2 is arranged in an inner cavity of the heat regenerator body 1, the inner cavity is divided into a first inner cavity 11 and a second inner cavity 12 by the magnetic refrigeration working medium 2, a hot inlet 13 and a cold outlet 14 are arranged at the left end of the heat regenerator body 1, the hot inlet 13 is communicated with the first inner cavity 11, the cold outlet 14 is communicated with the second inner cavity 12, a hot outlet 15 and a cold inlet 16 are arranged at the right end of the heat regenerator body 1, the hot outlet 15 is communicated with the first inner cavity 11, and the cold inlet 16 is communicated with the second inner cavity 12.
The inner cavity of the regenerator body 1 is divided into a first inner cavity 11 and a second inner cavity 12 by the magnetic refrigeration working medium 2, the arrow indicates the fluid flow direction, the first inner cavity 11 intermittently and unidirectionally flows through the hot circulating fluid, and the second inner cavity 12 intermittently and unidirectionally flows through the cold circulating fluid. The intermittent state means that the hot circulating fluid or the cold circulating fluid is static in the magnetizing and demagnetizing process of the magnetic refrigeration working medium 2, the hot circulating fluid in the first inner cavity 11 flows rightward after the magnetization of the magnetic refrigeration working medium 2, the cold circulating fluid in the second inner cavity 12 is static at the moment, and the cold circulating fluid in the second inner cavity 12 flows leftward after the demagnetization of the magnetic refrigeration working medium 2, the hot circulating fluid in the first inner cavity 11 is static at the moment.
Fig. 2a shows a schematic view of a longitudinal section of a flat plate-shaped magnetic refrigerant 2 and a cylindrical regenerator body 1 in the present invention, fig. 2b shows a schematic view of a longitudinal section of a comb-shaped magnetic refrigerant 2 and a cylindrical regenerator body 1 in the present invention, fig. 2c shows a schematic view of a longitudinal section of a saw-tooth-shaped magnetic refrigerant 2 and a cylindrical regenerator body 1 in the present invention, and fig. 2d shows a schematic view of a longitudinal section of a square wave-shaped magnetic refrigerant 2 and a cylindrical regenerator body 1 in the present invention.
The shape of the regenerator body 1 is cylindrical, and the shape of the magnetic refrigeration working medium 2 is a flat plate shape, a comb tooth shape, a zigzag shape or a square wave shape.
Fig. 3a shows a schematic view of a longitudinal section of a flat plate-shaped magnetic refrigeration working medium 2 and a square cylinder-shaped regenerator body 1 in the present invention, fig. 3b shows a schematic view of a longitudinal section of a comb-shaped magnetic refrigeration working medium 2 and a square cylinder-shaped regenerator body 1 in the present invention, fig. 3c shows a schematic view of a longitudinal section of a zigzag-shaped magnetic refrigeration working medium 2 and a square cylinder-shaped regenerator body 1 in the present invention, and fig. 3d shows a schematic view of a longitudinal section of a square wave-shaped magnetic refrigeration working medium 2 and a square cylinder-shaped regenerator body 1 in the present invention.
The shape of the regenerator body 1 is square cylinder, and the shape of the magnetic refrigeration working medium 2 is flat plate, comb tooth, saw tooth or square wave.
As shown in fig. 4, a schematic structural diagram of a magnetic refrigerator using a layered regenerator according to the present invention is shown.
The room temperature magnetic refrigerator comprises a heat regenerator body 1, a magnetic refrigeration working medium 2, a magnet 3, an electromagnetic valve 4, a first driving pump 5, a second driving pump 6, a cold end heat exchanger 7, a hot end heat exchanger 8 and a buffer 9, wherein a magnetic field cavity is axially formed in the middle of the magnet 3, the heat regenerator body 1 is arranged in the magnetic field cavity, the electromagnetic valve 4 is respectively arranged at a hot inlet 13, a cold outlet 14, a hot outlet 15 and a cold inlet 16, an input port and an output port of the cold end heat exchanger 7 are respectively connected with the cold outlet 14 and the hot inlet 13 through pipelines, the first driving pump 5 is arranged at an input port of the cold end heat exchanger 7, an input port and an output port of the hot end heat exchanger 8 are respectively connected with the hot outlet 15 and the cold inlet 16 through pipelines, the second driving pump 6 is arranged at an input port of the hot end heat exchanger 8, and the buffers 9 are respectively arranged at output ports of the cold end heat exchanger 7 and the hot end heat exchanger 8.
The heat exchange method of the room temperature magnetic refrigerator comprises the following specific steps:
After the magnetic refrigeration working medium 2 in the heat regenerator body 1 is magnetized, circulating fluid is heated by the magnetic refrigeration working medium 2, the electromagnetic valves 4 at the hot inlet 13 and the hot outlet 15 are opened, the electromagnetic valves 4 at the cold inlet 16 and the cold outlet 14 are closed, the second driving pump 6 is started, the first driving pump 5 is stopped, the heat circulating fluid in the first inner cavity 11 flows rightwards and enters the hot end heat exchanger 8 for heat exchange, and the heat circulating fluid flows through the hot end heat exchanger 8 and enters the buffer 9 at one side of the hot end heat exchanger 8 for storage;
step 2, after the magnetic refrigeration working medium 2 in the heat regenerator body 1 is demagnetized, the circulating fluid is cooled by the magnetic refrigeration working medium 2, the electromagnetic valves 4 of the cold inlet 16 and the cold outlet 14 are opened, the electromagnetic valves 4 at the hot inlet 13 and the hot outlet 15 are closed, the first driving pump 5 is started, the second driving pump 6 is stopped, the cold circulating fluid in the second inner cavity 12 flows leftwards and enters the cold end heat exchanger 7 for heat exchange, and the cold circulating fluid flows through the cold end heat exchanger 7 and enters the buffer 9 at one side of the cold end heat exchanger 7 for storage.
In the magnetizing process of the magnetic refrigeration working medium 2, the electromagnetic valves 4 of the cold inlet 16 and the cold outlet 14 are closed, and the circulating fluid is static. In the demagnetizing process of the magnetic refrigeration working medium 2, the electromagnetic valve 4 at the hot inlet 13 and the hot outlet 15 is closed, and the circulating fluid is static. Namely, the first driving pump 5, the second driving pump 6 and the magnetic refrigeration working medium 2 stop working, and the circulating fluid in the regenerator body 1 remains static. Therefore, the inner cavity is divided into two parts in the heat regenerator body 1, so that the cold flow circulation and the hot flow circulation are completely separated, the heat exchange efficiency is improved, and the energy consumption of the heat regenerator can be effectively reduced.
In the running process of the room temperature magnetic refrigerator, the AMR technology generates a temperature gradient in the heat regenerator body 1 step by step through the reciprocating flow of the circulating fluid, generates a larger temperature difference at the two ends of the heat regenerator body 1, simultaneously gradually transfers the heat of the cold end heat exchanger 7 to the hot end through the circulating fluid, and discharges the heat through the hot end heat exchanger 8 to realize refrigeration.
The terminology used herein is for the purpose of description and illustration only and is not intended to be limiting. 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 (4)
1. A room temperature magnetic refrigerator is characterized by comprising a heat regenerator body, a magnetic refrigeration working medium, a magnet, an electromagnetic valve, a first driving pump, a second driving pump, a cold end heat exchanger, a hot end heat exchanger and a buffer, wherein the magnetic refrigeration working medium is arranged in an inner cavity of the heat regenerator body and divides the inner cavity into a first inner cavity and a second inner cavity, the heat regenerator body is cylindrical or square, a hot inlet and a cold outlet are arranged at the left end of the heat regenerator body, the hot inlet is communicated with the first inner cavity, the cold outlet is communicated with the second inner cavity, a hot outlet and a cold inlet are arranged at the right end of the heat regenerator body, the hot outlet is communicated with the first inner cavity, the cold inlet is communicated with the second inner cavity, a magnetic field cavity is axially arranged in the middle of the magnet, the heat regenerator body is arranged in the magnetic field cavity, the hot inlet, the hot outlet and the hot end heat exchanger are respectively provided with the electromagnetic valve, an input port and an output port of the cold end heat exchanger are respectively connected with the cold outlet and the hot inlet through pipelines, the first driving pump is arranged at the input port of the cold end heat exchanger, the hot end of the heat exchanger is respectively connected with the hot outlet and the cold inlet through pipelines, the output port of the second driving pump is respectively arranged at the input port of the heat exchanger, and the heat exchanger is arranged at the output port of the heat exchanger.
2. The room temperature magnetic refrigerator of claim 1, wherein the magnetic refrigeration working medium has a shape of a flat plate, comb teeth, saw teeth, or square wave.
3. A heat exchange method using the room temperature magnetic refrigerator according to claim 1 or 2, comprising:
When the magnetic refrigeration working medium in the heat regenerator body is magnetized, circulating fluid is heated by the magnetic refrigeration working medium, the electromagnetic valves at the hot inlet and the hot outlet are opened, the electromagnetic valves at the cold inlet and the cold outlet are closed, the second driving pump is started, the first driving pump is stopped, the heat circulation fluid in the first inner cavity flows rightwards and enters the hot end heat exchanger to exchange heat, and the heat circulation fluid enters and is stored in the buffer at one side of the hot end heat exchanger after flowing through the hot end heat exchanger;
After the magnetic refrigeration working medium in the heat regenerator body demagnetizes, the circulating fluid is cooled by the magnetic refrigeration working medium, the electromagnetic valves of the cold inlet and the cold outlet are opened, the electromagnetic valves at the hot inlet and the hot outlet are closed, the first driving pump is started, the second driving pump is stopped, the cold circulating fluid in the second inner cavity flows leftwards and enters the cold end heat exchanger for heat exchange, and the cold circulating fluid enters and is stored in the buffer at one side of the cold end heat exchanger after flowing through the cold end heat exchanger.
4. A heat exchange method of a room temperature magnetic refrigerator according to claim 3, wherein during the operation of the room temperature magnetic refrigerator, a temperature gradient is generated in the regenerator body step by the reciprocating flow of the circulating fluid, a temperature difference is generated at both ends of the regenerator body, the heat of the cold end heat exchanger is transferred to the hot end step by the circulating fluid, and the heat is discharged by the hot end heat exchanger, thereby realizing refrigeration.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211618799.1A CN116164434B (en) | 2022-12-15 | 2022-12-15 | Layered regenerator for room temperature magnetic refrigerator, room temperature magnetic refrigerator and heat exchange method |
| NL2035691A NL2035691A (en) | 2022-12-15 | 2023-08-28 | Layered regenerator for room temperature magnetic refrigerator, room temperature magnetic refrigerator and heat exchange method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211618799.1A CN116164434B (en) | 2022-12-15 | 2022-12-15 | Layered regenerator for room temperature magnetic refrigerator, room temperature magnetic refrigerator and heat exchange method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116164434A CN116164434A (en) | 2023-05-26 |
| CN116164434B true CN116164434B (en) | 2025-09-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211618799.1A Active CN116164434B (en) | 2022-12-15 | 2022-12-15 | Layered regenerator for room temperature magnetic refrigerator, room temperature magnetic refrigerator and heat exchange method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN116164434B (en) |
| NL (1) | NL2035691A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441009A (en) * | 2008-12-19 | 2009-05-27 | 中国科学院电工研究所 | Heat exchange system of permanent magnetism rotary type magnetic refrigerating machine |
| CN108413644A (en) * | 2018-02-09 | 2018-08-17 | 中科磁凌（北京）科技有限公司 | Magnetic refrigeration system of multistage magnetic heat regenerator |
| CN219346851U (en) * | 2022-12-15 | 2023-07-14 | 包头稀土研究院 | Layered regenerator for room temperature magnetic refrigerator and room temperature magnetic refrigerator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100761666B1 (en) * | 2006-01-27 | 2007-10-01 | 주식회사 대우일렉트로닉스 | Active Magnetic Refrigerator |
| CN102734977A (en) * | 2012-05-31 | 2012-10-17 | 华中科技大学 | Magnetic refrigerating device based on repetitive pulsed magnetic field |
-
2022
- 2022-12-15 CN CN202211618799.1A patent/CN116164434B/en active Active
-
2023
- 2023-08-28 NL NL2035691A patent/NL2035691A/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441009A (en) * | 2008-12-19 | 2009-05-27 | 中国科学院电工研究所 | Heat exchange system of permanent magnetism rotary type magnetic refrigerating machine |
| CN108413644A (en) * | 2018-02-09 | 2018-08-17 | 中科磁凌（北京）科技有限公司 | Magnetic refrigeration system of multistage magnetic heat regenerator |
| CN219346851U (en) * | 2022-12-15 | 2023-07-14 | 包头稀土研究院 | Layered regenerator for room temperature magnetic refrigerator and room temperature magnetic refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| NL2035691A (en) | 2024-06-20 |
| CN116164434A (en) | 2023-05-26 |
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