CN114034730A - Refrigeration device under multi-field coupling and operation method - Google Patents
Refrigeration device under multi-field coupling and operation method Download PDFInfo
- Publication number
- CN114034730A CN114034730A CN202111292778.0A CN202111292778A CN114034730A CN 114034730 A CN114034730 A CN 114034730A CN 202111292778 A CN202111292778 A CN 202111292778A CN 114034730 A CN114034730 A CN 114034730A
- Authority
- CN
- China
- Prior art keywords
- sample
- stress
- pressure head
- hollow cylindrical
- magnetic field
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005057 refrigeration Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000008878 coupling Effects 0.000 title claims abstract description 16
- 238000010168 coupling process Methods 0.000 title claims abstract description 16
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 43
- 230000008859 change Effects 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 14
- 230000000737 periodic effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 19
- 230000008569 process Effects 0.000 abstract description 9
- 239000000463 material Substances 0.000 description 11
- 238000012360 testing method Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 8
- 239000004065 semiconductor Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
-
- 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
-
- 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
- F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/42—Low-temperature sample treatment, e.g. cryofixation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
- F25B2321/002—Details of machines, plants or systems, using electric or magnetic effects by using magneto-caloric effects
- F25B2321/0022—Details of machines, plants or systems, using electric or magnetic effects by using magneto-caloric effects with a rotating or otherwise moving magnet
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
The invention provides a refrigerating device under multi-field coupling and an operation method thereof, wherein the refrigerating device comprises a magnetic field system, a stress field system, a heat exchange system and a data acquisition system, wherein the magnetic field system comprises a hollow cylindrical magnet and a magnet rotating motor which are in transmission connection; the heat exchange system comprises a hydraulic piston, a hydraulic piston motor and a hollow heat regenerator inserted into the hollow cylindrical magnet, wherein two ends of the hydraulic piston are respectively connected with a transmission rod and a fixed rod through pipelines; the stress field system comprises a first pressure head which is inserted into one end of the hollow heat regenerator and connected with the transmission rod, a second pressure head which is inserted into the other end of the hollow heat regenerator and connected with the fixing rod, and a sample is placed between the first pressure head and the second pressure head. In the invention, a magnetic field system and a stress field system are utilized to apply a stress field and a magnetic field to the sample independently or simultaneously, and a data acquisition system measures and stores the temperature change and the mechanical parameter change of the sample in the process, thereby obtaining the refrigeration effect of the measured sample under multi-field coupling.
Description
Technical Field
The invention belongs to the technical field of solid refrigeration, relates to a testing device for multi-clamping effect and the design of a refrigerating device, and particularly relates to a refrigerating device under multi-field coupling and an operation method.
Background
Gas compression refrigeration technology is the main working mode of the existing refrigeration equipment, however, the refrigeration technology has two obvious disadvantages at present: on the one hand, the refrigeration efficiency of the compressor is still low, and on the other hand, the use of the refrigerant represented by freon causes problems such as air pollution. Therefore, it is urgent to find a novel environment-friendly, efficient and energy-saving refrigeration technology to replace the traditional gas compression refrigeration technology; with the continuous development of society, solid-state refrigeration technology is produced and is considered as a refrigeration technology with great potential.
The basic principle of solid refrigeration is that when an external field is applied or removed on a solid material, a thermal effect is generated, and the purpose of refrigeration is achieved by utilizing the absorption and release of heat in the process. Although the single-drive external field solid refrigeration technology has shown great development prospect, there is still a gap from the industrialization of the solid refrigeration equipment.
CN111289693A discloses a device for directly measuring multi-card effect, which belongs to the technical field of solid refrigeration, the device comprises a magnetic field system, a stress field system, a data acquisition system and a temperature control system, in each system of the device, an upper pressure head is connected with a universal testing machine transmission rod through an upper pressure head connecting rod, a lower pressure head is fixed on a test bed through a lower pressure head fixing rod, a magnet is positioned between the upper pressure head and the lower pressure head, the magnet is connected on a track of a screw rod sliding table through a clamp, a motor is connected with a sliding table controller, an electric heating sheet is arranged on the lower pressure head and is connected with an adjustable power supply through a lead wire, the sample is positioned in the center of the magnet and is connected with a data storage device through a temperature acquisition element, the device utilizes the magnetic field system and the stress field system to apply a stress field and a magnetic field to the sample independently or simultaneously, the data acquisition system measures and stores the temperature change and the mechanical parameter change of the sample in the process, thereby investigating the multi-cal effect of the measurement sample.
CN113155496A discloses a multi-stuck effect testing device, which includes a stress control assembly, a superconducting magnet, a sample chamber, a temperature control assembly and a data acquisition assembly; the stress control assembly comprises a universal testing machine, a transmission unit and a fixed cross beam; the universal testing machine comprises a base and a mobile platform; the superconducting magnet is arranged on the base, and the moving platform is slidably arranged on the base; the sample chamber can extend into or withdraw from the superconducting magnet; the transmission unit can extend into the sample chamber; the sample chamber comprises a supporting component, a first pressure head, a second pressure head and a vacuum sleeve; the first pressure head is arranged on the supporting component, the second pressure head is connected with the transmission unit, and the transmission unit can drive the second pressure head to be close to or far away from the first pressure head; the vacuum sleeve can be sleeved inside the sample chamber and is in a closed state. The invention can apply various external fields to the solid material, and has the advantages of wide and accurate measurement range, simple structure and more comprehensive functions.
CN108679877A discloses a solid state refrigeration device, including the heat conduction inner bag, semiconductor refrigeration module and the wet subassembly of accuse, semiconductor refrigeration module includes first semiconductor refrigeration chip, heat pipe and equipment module, the equipment module includes first thermal-insulated support, the thermal-insulated support of second, hot junction heat conduction seat and cold junction heat conduction seat, be provided with first recess on the first thermal-insulated support, set up the mounting hole that runs through first thermal-insulated support in the first recess, the thermal-insulated support of second is provided with the second recess, first thermal-insulated support is fixed on the thermal-insulated support of second, form the installation cavity between first recess and the second recess, first semiconductor refrigeration chip is located the mounting hole, cold junction heat conduction seat and the cold junction face contact of first semiconductor refrigeration chip, hot junction heat conduction seat and the hot junction face contact of first semiconductor refrigeration chip, the cold junction heat conduction seat is connected to the heat pipe. The solid-state refrigerating device realizes the reduction of the cold loss of the semiconductor refrigerating module, so as to improve the refrigerating efficiency of the refrigerating equipment and reduce the energy consumption.
However, since the research on the multi-card effect is still in the beginning stage, no commercial multi-card effect testing device exists at present, which greatly limits the research on the multi-card effect and the subsequent application. Therefore, the research and development of a device capable of directly measuring the multi-calorie effect is the focus of the multi-calorie effect research in the solid-state refrigeration technology at present.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a refrigerating device under multi-field coupling and an operation method thereof, in the invention, a magnetic field system and a stress field system are utilized to apply a stress field and a magnetic field to a sample independently or simultaneously, a data acquisition system measures and stores the temperature change and the mechanical parameter change of the sample in the process, thereby obtaining the refrigerating effect of the measured sample under multi-field coupling; a special pressure head is adopted to realize firm clamping of the sample, and the contact surface of the transmission rod and the stress bracket is subjected to dynamic sealing treatment to realize sealing of the heat exchange fluid; the length of the sample is greater than that of the heat regenerator, so that the effective area of the magnet is fully utilized; the stress bracket is supported by a material with low thermal conductivity and high strength, so that the effect of preventing heat of the heat exchange fluid from leaking is realized.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides a refrigeration device under multi-field coupling, the refrigeration device comprises a magnetic field system, a stress field system, a heat exchange system and a data acquisition system, the magnetic field system comprises a hollow cylindrical magnet and a magnet rotating motor which are in transmission connection, the heat exchange system comprises a hydraulic piston, a hydraulic piston motor and a hollow regenerator inserted into the hollow cylindrical magnet, two ends of the hydraulic piston are respectively connected with a transmission rod and a fixed rod through pipelines, the pipelines are water pipes, the stress field system comprises a first pressure head inserted into one end of the hollow regenerator and connected with the transmission rod, a second pressure head inserted into the other end of the hollow regenerator and connected with the fixed rod, the transmission rod is further connected with the stress field motor, and a sample is placed between the first pressure head and the second pressure head.
In the invention, a magnetic field system and a stress field system are utilized to apply a stress field and a magnetic field to a sample independently or simultaneously, and a data acquisition system measures and stores the temperature change and the mechanical parameter change of the sample in the process, thereby obtaining the refrigeration effect of the measured sample under multi-field coupling; a special pressure head is adopted to realize firm clamping of the sample, and the contact surface of the transmission rod and the stress bracket is subjected to dynamic sealing treatment to realize sealing of the heat exchange fluid; the length of the sample is greater than that of the heat regenerator, so that the effective area of the magnet is fully utilized; the stress bracket is supported by a material with low thermal conductivity and high strength, so that the effect of preventing heat of the heat exchange fluid from leaking is realized.
As a preferred technical solution of the present invention, the magnetic field system further includes an electric control unit, and the electric control unit is connected to the magnet rotating motor and is configured to control a switch and a rotation speed of the magnet rotating motor.
It should be noted that the present invention does not specifically require and specially limit the structural features of the electronic control unit, such as size, model, material, etc., and the electronic control unit functions to control the switch and rotation speed of the magnet rotating motor in the present invention, so it can be understood that other electronic control units capable of implementing such functions can be used in the present invention, and those skilled in the art can adaptively adjust the size, model, and material of the electronic control unit according to the use scene and test conditions.
As a preferred technical scheme of the present invention, the transmission connection of the magnetic field system is a track connection, the magnet rotating motor is connected to the hollow cylindrical magnet through the track, and the magnet rotating motor is turned on and simultaneously drives the track to move, thereby driving the hollow cylindrical magnet to rotate.
As a preferable technical solution of the present invention, the hollow cylindrical magnet is a permanent magnet.
Preferably, the hollow cylindrical magnet is formed by splicing at least three sector magnets.
In a preferred embodiment of the present invention, the magnetic field of the hollow cylindrical magnet is 1.6T or less, and may be, for example, 1.6T, 1.5T, 1.4T, 1.3T, 1.2T, 1.0T, 0.9T, 0.6T, 0.4T, or 0.1T, but is not limited to the above-mentioned values, and other values not listed in the above-mentioned range of values are also applicable.
Preferably, the magnetic field direction of the hollow cylindrical magnet is either diametrically outward or inward.
In a preferred embodiment of the present invention, the first indenter and the second indenter are in direct contact with the sample.
It should be noted that the present invention does not specifically require and specially limit the structural features of the indenter, such as size, model, and material, and the indenter in the present invention functions to connect the transmission rod or the fixing rod and contact the sample, so it can be understood that other indenters capable of achieving such functions can be used in the present invention, and those skilled in the art can adaptively adjust the size, model, and material of the indenter according to the use scenario and the test conditions.
It should be noted that the appearance of the stress field system of the present invention may be modified according to the appearance of the sample, and for example, the sample may be a columnar sample and may be clamped by a pincer-like clamp plate, a plate-like sample and may also be clamped by a flat-plate chuck, and a filiform sample may be fixed by a porous flat plate. The test of single or multiple samples with different morphologies can be realized.
Preferably, the stress provided by the stress field motor is transmitted to the first pressure head by the transmission rod, and is directly applied to the sample by the first pressure head.
As a preferred technical scheme of the present invention, the stress field system further includes stress brackets, the stress brackets are disposed at two ends of the hollow cylindrical magnet and are sleeved on the transmission rod and the fixing rod.
Preferably, the contact surface of the stress bracket and the transmission rod is subjected to dynamic sealing treatment, so that the heat exchange fluid is sealed.
It should be noted that the dynamic sealing treatment in the invention is to fill a plurality of expansion rings in the inner wall of the contact surface of the stress bracket and the transmission rod, and the expansion rings are tightly attached to the surface of the transmission rod by virtue of elasticity, so that the heat exchange fluid can be sealed.
As a preferable technical scheme of the invention, the length of the sample is greater than that of the hollow regenerator, and two ends of the sample are positioned in the stress bracket.
As a preferred technical scheme of the present invention, the heat exchange system includes a hydraulic electronic control unit, and the hydraulic piston is controlled by the hydraulic electronic control unit to realize that the heat exchange fluid flows leftwards or rightwards inside the hollow regenerator.
In a second aspect, the present invention provides a method of operating the refrigeration apparatus of the first aspect, the method comprising:
the sample is placed in the hollow heat exchanger, the hollow cylindrical magnet is driven by the magnet rotating motor to realize the periodic change of the size of the internal magnetic field, the stress field motor drives the transmission rod and the first pressure head to apply stress to the sample, meanwhile, the hydraulic piston motor of the heat exchange system is opened to drive the hydraulic piston to operate and exchange heat, and finally, the data acquisition system collects temperature change data and mechanical parameters.
Compared with the prior art, the invention has the beneficial effects that:
in the invention, a magnetic field system and a stress field system are utilized to apply a stress field and a magnetic field to a sample independently or simultaneously, and a data acquisition system measures and stores the temperature change and the mechanical parameter change of the sample in the process, thereby obtaining the refrigeration effect of the measured sample under multi-field coupling; a special pressure head is adopted to realize firm clamping of the sample, and the contact surface of the transmission rod and the stress bracket is subjected to dynamic sealing treatment to realize sealing of the heat exchange fluid; the length of the sample is greater than that of the heat regenerator, so that the effective area of the magnet is fully utilized; the stress bracket is supported by a material with low thermal conductivity and high strength, so that the effect of preventing heat of the heat exchange fluid from leaking is realized.
Drawings
Fig. 1 is a schematic structural diagram of an external appearance of a refrigeration apparatus under multi-field coupling according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the internal structure of a refrigeration device under multi-field coupling according to an embodiment of the present invention;
fig. 3 is a schematic diagram of the overall structure of a refrigeration device under multi-field coupling according to an embodiment of the present invention;
wherein, 1-hollow cylindrical magnet; 2-a magnet rotating motor; 3-a hydraulic piston; 4-a hydraulic piston motor; 5-a hollow heat regenerator; 6-a transmission rod; 7-fixing the rod; 8-a first ram; 9-a second ram; 10-a stress field motor; 11-sample; 12-a crawler belt; 13-a stress bracket; 14-water pipe.
Detailed Description
It is to be understood that in the description of the present invention, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be taken as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
It should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
It should be understood by those skilled in the art that the present invention necessarily includes necessary piping, conventional valves and general pump equipment for achieving the complete process, but the above contents do not belong to the main inventive points of the present invention, and those skilled in the art can select the layout of the additional equipment based on the process flow and the equipment structure, and the present invention is not particularly limited to this.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In one embodiment, the present invention provides a refrigeration device under multi-field coupling, as shown in figures 1-3, the refrigerating device comprises a magnetic field system, a stress field system, a heat exchange system and a data acquisition system, wherein the magnetic field system comprises a hollow cylindrical magnet 1 and a magnet rotating motor 2 which are connected in a transmission mode, the heat exchange system comprises a hydraulic piston 3, a hydraulic piston motor 4 and a hollow heat regenerator 5 inserted into the hollow cylindrical magnet 1, two ends of the hydraulic piston 3 are respectively connected with a transmission rod 6 and a fixing rod 7 through pipelines, furthermore, the pipelines are water pipes 15, the stress field system comprises a hollow heat regenerator 5, a first pressure head 8 connected with the transmission rod 6 is inserted into one end of the hollow heat regenerator, a second pressure head 9 connected with the fixing rod 7 is inserted into the other end of the hollow heat regenerator, the transmission rod 6 is further connected with a stress field motor 10, and further, a sample 11 is placed between the first pressure head 8 and the second pressure head 9.
In the invention, a magnetic field system and a stress field system are utilized to apply a stress field and a magnetic field to the sample 11 independently or simultaneously, and a data acquisition system measures and stores the temperature change and the mechanical parameter change of the sample 11 in the process, thereby obtaining the refrigeration effect of the sample 11 under multi-field coupling; a special pressure head is adopted to firmly clamp the sample 11, and the contact surface of the transmission rod 6 and the stress bracket 13 is subjected to dynamic sealing treatment to realize sealing of the heat exchange fluid; the length of the sample is greater than that of the heat regenerator, so that the effective area of the magnet is fully utilized; the stress bracket 13 is supported by a material with low thermal conductivity and high strength, so that the effect of preventing heat of the heat exchange fluid from leaking is realized.
The magnetic field system further comprises an electric control unit, the electric control unit is connected with the magnet rotating motor and used for controlling the opening and closing and the rotating speed of the magnet rotating motor, it is to be noted that the size, the type, the material and other structural characteristics of the electric control unit are not specifically required and limited, and the electric control unit is used for controlling the opening and closing and the rotating speed of the magnet rotating motor.
The transmission connection of the magnetic field system is that the track 12 is connected, the magnet rotating motor is connected with the hollow cylindrical magnet 1 through the track 12, and the magnet rotating motor is started and drives the track 12 to move so as to drive the hollow cylindrical magnet 1 to rotate.
The hollow cylindrical magnet 1 is a permanent magnet, further, the hollow cylindrical magnet 1 is formed by splicing at least three fan-shaped magnets, further, the magnetic field of the hollow cylindrical magnet 1 is less than or equal to 1.6T, and the magnetic field direction of the hollow cylindrical magnet 1 is outward or inward along the diameter.
The first 8 and second 9 indenters are in direct contact with the sample 11 and the stress provided by the stress field motor 10 is conducted by the drive rod 6 to the first indenter 8 and is applied directly to the sample by the first indenter 8. It should be noted that the present invention does not specifically require and specially limit the structural features of the indenter, such as the size, the type, the material, etc., and the indenter in the present invention functions to connect the driving rod 6 or the fixing rod 7 and contact the sample 11, so it can be understood that other indenters capable of performing such functions can be used in the present invention, and those skilled in the art can adaptively adjust the size, the type, and the material of the indenter according to the use scenario and the test condition.
The stress field system further comprises stress brackets 13, the stress brackets 13 are arranged at two ends of the hollow cylindrical magnet 1 and are sleeved on the transmission rod 6 and the fixing rod 7, the length of the sample 11 is larger than that of the hollow heat regenerator 5, two ends of the sample 11 are located inside the stress brackets 13, and further, the contact surfaces of the stress brackets 13 and the transmission rod 6 are subjected to dynamic sealing treatment to realize sealing of the heat exchange fluid. It should be noted that the dynamic sealing treatment in the invention is to fill a plurality of expansion rings in the inner wall of the contact surface of the stress bracket and the transmission rod, and the expansion rings are tightly attached to the surface of the transmission rod by virtue of elasticity, so that the heat exchange fluid can be sealed.
The heat exchange system comprises a hydraulic electric control unit, and further, the hydraulic piston 3 is controlled by the hydraulic electric control unit to realize that the heat exchange fluid flows leftwards or rightwards in the hollow heat regenerator 5.
In another embodiment, the present invention provides a method of operating a refrigeration unit, the method comprising:
a sample 11 is placed in a hollow heat exchanger, a hollow cylindrical magnet 1 is driven by a magnet rotating motor 2 to realize the periodic change of the size of an internal magnetic field, a stress field motor 10 drives a transmission rod 6 and a first pressure head 8 to act stress on the sample 11, meanwhile, a hydraulic piston motor 4 of a heat exchange system is opened to drive a hydraulic piston 3 to operate for heat exchange, and finally, a data acquisition system is used for collecting temperature change data and mechanical parameters.
The applicant declares that the above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are within the scope and disclosure of the present invention.
Claims (10)
1. A refrigerating device under multi-field coupling is characterized by comprising a magnetic field system, a stress field system, a heat exchange system and a data acquisition system;
the magnetic field system comprises a hollow cylindrical magnet and a magnet rotating motor which are in transmission connection;
the heat exchange system comprises a hydraulic piston, a hydraulic piston motor and a hollow heat regenerator inserted into the hollow cylindrical magnet, wherein two ends of the hydraulic piston are respectively connected with a transmission rod and a fixed rod through pipelines;
the stress field system comprises a first pressure head which is inserted into one end of the hollow heat regenerator and connected with a transmission rod, a second pressure head which is inserted into the other end of the hollow heat regenerator and connected with a fixing rod, the transmission rod is further connected with a stress field motor, and a sample is placed between the first pressure head and the second pressure head.
2. The refrigeration unit of claim 1 wherein the magnetic field system further comprises an electronic control unit, the electronic control unit being connected to the magnet rotating motor for controlling the switching and rotational speed of the magnet rotating motor.
3. A cold appliance according to claim 1 or 2, wherein the drive connection of the magnetic field system is a caterpillar connection, and the magnet rotating motor is connected to the hollow cylindrical magnet via the caterpillar;
the magnet rotating motor is started and drives the caterpillar track to move, so that the hollow cylindrical magnet is driven to rotate.
4. A cold appliance according to any of claims 1-3, wherein the hollow cylindrical magnet is a permanent magnet;
preferably, the hollow cylindrical magnet is formed by splicing at least three sector magnets.
5. A cold appliance according to any of claims 1-4, wherein the magnetic field of the hollow cylindrical magnet is ≤ 1.6T;
preferably, the magnetic field direction of the hollow cylindrical magnet is either diametrically outward or inward.
6. A cold appliance according to any of claims 1-5, wherein the first and second pressure heads are in direct contact with the sample;
preferably, the stress provided by the stress field motor is transmitted to the first pressure head by the transmission rod, and is directly applied to the sample by the first pressure head.
7. The refrigeration device as claimed in any one of claims 1 to 6, wherein the stress field system further comprises stress brackets which are arranged at both ends of the hollow cylindrical magnet and are sleeved on the transmission rod and the fixing rod;
preferably, the contact surface of the stress bracket and the transmission rod is subjected to dynamic sealing treatment, so that the heat exchange fluid is sealed.
8. A cold appliance according to any of claims 1-7, wherein the length of the sample is larger than the length of the hollow regenerator and both ends of the sample are inside the stressing bracket.
9. A cold appliance according to any of claims 1-8, wherein the heat exchange system comprises a hydraulic electronic control unit, and the hydraulic piston is controlled by the hydraulic electronic control unit to realize the flow of the heat exchange fluid to the left or right inside the hollow regenerator.
10. A method of operating a refrigeration unit according to any one of claims 1 to 9, characterized in that the method of operation comprises:
the sample is placed in the hollow heat exchanger, the hollow cylindrical magnet is driven by the magnet rotating motor to realize the periodic change of the size of the internal magnetic field, the stress field motor drives the transmission rod and the first pressure head to apply stress to the sample, meanwhile, the hydraulic piston motor of the heat exchange system is opened to drive the hydraulic piston to operate and exchange heat, and finally, the data acquisition system collects temperature change data and mechanical parameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111292778.0A CN114034730A (en) | 2021-11-03 | 2021-11-03 | Refrigeration device under multi-field coupling and operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111292778.0A CN114034730A (en) | 2021-11-03 | 2021-11-03 | Refrigeration device under multi-field coupling and operation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114034730A true CN114034730A (en) | 2022-02-11 |
Family
ID=80136107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111292778.0A Pending CN114034730A (en) | 2021-11-03 | 2021-11-03 | Refrigeration device under multi-field coupling and operation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114034730A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4702090A (en) * | 1986-10-24 | 1987-10-27 | Astronautics Corporation Of America | Magnetic refrigeration apparatus with conductive heat transfer |
| US20020040583A1 (en) * | 2000-05-05 | 2002-04-11 | Barclay John A. | Apparatus and methods for cooling and liquefying a fluid using magnetic refrigeration |
| CN103163177A (en) * | 2013-03-07 | 2013-06-19 | 包头稀土研究院 | Magnetothermal effect measurement system and method |
| CN106949673A (en) * | 2017-03-27 | 2017-07-14 | 中国科学院理化技术研究所 | A kind of active magnetic regenerator and magnetic refrigerating system |
| CN111289693A (en) * | 2020-02-18 | 2020-06-16 | 北京科技大学 | Device for directly measuring multi-card effect |
| 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 |
| CN112577994A (en) * | 2020-12-22 | 2021-03-30 | 包头稀土研究院 | Magnetocaloric effect measuring system and measuring method |
| CN113155496A (en) * | 2021-03-12 | 2021-07-23 | 中国科学院宁波材料技术与工程研究所 | Multi-card effect testing device |
-
2021
- 2021-11-03 CN CN202111292778.0A patent/CN114034730A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4702090A (en) * | 1986-10-24 | 1987-10-27 | Astronautics Corporation Of America | Magnetic refrigeration apparatus with conductive heat transfer |
| US20020040583A1 (en) * | 2000-05-05 | 2002-04-11 | Barclay John A. | Apparatus and methods for cooling and liquefying a fluid using magnetic refrigeration |
| CN103163177A (en) * | 2013-03-07 | 2013-06-19 | 包头稀土研究院 | Magnetothermal effect measurement system and method |
| CN106949673A (en) * | 2017-03-27 | 2017-07-14 | 中国科学院理化技术研究所 | A kind of active magnetic regenerator and magnetic refrigerating system |
| CN111289693A (en) * | 2020-02-18 | 2020-06-16 | 北京科技大学 | Device for directly measuring multi-card effect |
| 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 |
| CN112577994A (en) * | 2020-12-22 | 2021-03-30 | 包头稀土研究院 | Magnetocaloric effect measuring system and measuring method |
| CN113155496A (en) * | 2021-03-12 | 2021-07-23 | 中国科学院宁波材料技术与工程研究所 | Multi-card effect testing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103062973B (en) | Magnetic refrigerating portable refrigerator and refrigeration method | |
| CN102305491A (en) | Swing type room temperature magnetic refrigeration machine | |
| CN103901254B (en) | A kind of hts tape critical current test device | |
| CN105510443B (en) | A kind of low temperature ultrasonic vibrating fatigue experimental system | |
| CN105004093B (en) | A kind of Two-way Cycle reciprocating room temperature magnetic refrigerating system | |
| CN110617649A (en) | Heat circulation system of rotary room temperature magnetic refrigerator | |
| CN108826729A (en) | A kind of expanding machine unit and pulse type free-piston Stirling cooler | |
| WO2018210089A1 (en) | DOUBLE ACTINGα-STIRLING COOLER | |
| CN114034730A (en) | Refrigeration device under multi-field coupling and operation method | |
| CN108759147A (en) | A kind of wine cabinet using pulse type free-piston Stirling cooler | |
| CN214199266U (en) | Magnetic field refrigeration heat exchange fluid circulation system | |
| CN211177503U (en) | Heat circulation system of rotary room temperature magnetic refrigerator | |
| CN112172566A (en) | Energy-saving environment-friendly isolated heat dissipation charging pile | |
| CN113155496B (en) | Multi-card effect testing device | |
| CN218269638U (en) | Rotary room temperature magnetic refrigerator | |
| CN202216447U (en) | Swinging type room temperature magnetic refrigerator | |
| CN114484925B (en) | High-efficiency reaction type magnetic refrigerator and heat exchange method | |
| CN214453115U (en) | Firm tumor marker detection kit | |
| CN113310338A (en) | Phosgene gas storage multi-energy complementary combined cooling heating and power system and heat storage module thereof | |
| CN212962758U (en) | Novel sintering furnace capable of guaranteeing sintering quality | |
| CN219656362U (en) | Ultra-low temperature constant temperature tank utilizing Stirling refrigerator | |
| CN210805389U (en) | Superconducting magnetic suspension thermostat | |
| CN204716416U (en) | A kind of Stirling thermal engine operating | |
| CN210294900U (en) | Continuous temperature changing device for nanoindentor | |
| CN203274395U (en) | Magnetic-refrigeration portable refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |