CN101726212A - Temperature exchange method and device using magnetorheological fluid as heat-conducting medium - Google Patents
Temperature exchange method and device using magnetorheological fluid as heat-conducting medium Download PDFInfo
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- CN101726212A CN101726212A CN200910191360A CN200910191360A CN101726212A CN 101726212 A CN101726212 A CN 101726212A CN 200910191360 A CN200910191360 A CN 200910191360A CN 200910191360 A CN200910191360 A CN 200910191360A CN 101726212 A CN101726212 A CN 101726212A
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Abstract
The invention relates to a method for performing heat exchange on objects or substances at different temperatures by using a magnetorheological fluid. The temperature exchange method comprises a controllable magnetic field, and a container consisting of an upper and lower hot plates and an insulated non-magnetic material. The magnetorheological fluid is filled in the container. The heat transfer coefficient of the magnetorheological fluid in the paramagnetic direction is changed by changing the magnitude of the magnetic field, so that the temperature exchange speed between the upper and lower hot plates is adjusted. Compared with the current temperature exchange method, the temperature exchange method has higher reliability by changing the temperature exchange speed between the objects due to the adoption of the magnetic field adjusting mode. The temperature exchange method can be applied to any occasion in need of temperature regulation and auxiliary control.
Description
Technical field
The present invention relates to the adjustment technology, be specifically related to utilize magnetic flow liquid between different objects, to carry out the technology of temperature exchange as Heat Conduction Material.
Background technology
Temperature exchange between object can be carried out in several ways, common temperature exchange device is to regulate the exchange velocity of temperature by the flow of gas (liquid) body in temperature exchanger of regulating different temperatures, these control methods will just can be finished by the concrete mechanical action of some executing agencies (as valve etc.), these mechanical actions might be stuck and out of control because of breaking down, and complex structure, reliability are not high.And temperature exchange device of the present invention is to adopt the intensity of regulating electromagnetic field to regulate the exchange velocity of temperature, thereby reliable operation easy to use.
Summary of the invention
The objective of the invention is to problem at the existence of prior art, a kind of method and device that adopts magnetic flow liquid to regulate as the temperature exchange of heat-conducting medium proposed, provide a kind of brand-new temperature exchange to regulate pattern, regulate the exchange velocity of temperature by regulating magnetic field intensity, improve the reliability of device.
Technical scheme of the present invention is as follows:
A kind of temperature exchange method that adopts magnetic flow liquid as heat-conducting medium, described method is to adopt magnetic flow liquid as heat-conducting medium, it is arranged on two needs carries out between the object of temperature exchange, and it is applied magnetic field by solenoid and/or permanent magnet, change the heat transfer coefficient of magnetic flow liquid on the paramagnetic direction by changing magnetic field intensity, thereby change the exchange velocity of temperature between object.
The present invention further proposes a kind of temperature exchange device of realizing the employing magnetic flow liquid of said method as heat-conducting medium, it comprises the container that is made of upper and lower heat-conducting plate and adiabatic non-magnet_conductible material, be full of magnetic flow liquid at described internal tank, the external stability of container has solenoid and/or permanent magnet, and solenoid and/or permanent magnet are connected with the control power supply.Two objects that the upper and lower heat-conducting plate of container is used for respectively carrying out with needs temperature exchange contact.Upper and lower heat-conducting plate is made of the good material of heat conduction.
Upper and lower heat-conducting plate also can directly carry out the outer surface of two or more different objects of temperature exchange as needs.
Magnetic flow liquid is a kind of good suspension that flows under no external magnetic field effect, externally rapid variation can take place in its physical form under the effect of magnetic field, promptly becomes semi-solid state from liquid condition, in case after removing magnetic field, become flowable liquid again, this variation is continuous in reversible; Its microcosmic shows as, and the distribution of ferromagnetic material is mixed and disorderly in the magnetic flow liquid under zero magnetic field condition, and the magnetic flow liquid of this moment is liquid condition, and the heat transfer coefficient of magnetic flow liquid is lower, and the temperature between upper and lower heat-conducting plate is mainly transmitted with convection type; Under the effect of outside magnetic field, magnetic flow liquid becomes semisolid from liquid, and the ferromagnetic material in the magnetic flow liquid is arranged along magnetic direction chaining pencil, formed the heat transfer path that constitutes by ferromagnetic material, well help the conduction of temperature because of the heat conductivility of ferromagnetic material, make the temperature between upper and lower heat-conducting plate, change in the mode of conduction from mode and carry out, the heat transfer coefficient of magnetic flow liquid is improved based on convection current.Regulate the size of external magnetic field and just can regulate the state of cure of magnetic flow liquid on the paramagnetic direction, thereby changed the heat transfer coefficient of magnetic flow liquid on the paramagnetic direction, also just changed the conduction of velocity of temperature between upper and lower heat-conducting plate, realized the adjusting of magnetic flow liquid temperature exchange speed between upper and lower heat-conducting plate.
Temperature exchange method provided by the invention is that a kind of brand-new temperature exchange is regulated pattern, compare with existing temperature exchange method, the mode of adopt regulating magnetic field changes that the speed of temperature exchange has higher reliability between object, the present invention can be used for any need to temperature regulate and the field of assist control with.
Description of drawings
Fig. 1 is the structural representation of a kind of specific embodiment of the present invention;
Fig. 2 is the vertical view of Fig. 1.
The specific embodiment
Referring to Fig. 1 and Fig. 2, in the container that last heat-conducting plate 1 and adiabatic non-magnet_conductible material 2 and following heat-conducting plate 4 constitute, be full of magnetic flow liquid 5, solenoid 3 is positioned at this external container.Solenoid is connected with the control power supply.Two objects that the upper and lower heat-conducting plate of container is used for respectively with needs carry out temperature exchange contact or directly carry out as needs the outer surface of two or more different objects of temperature exchange.The upper and lower heat-conducting plate of container is made of Heat Conduction Material.
After solenoid 3 feeds DC current, form magnetic field (magnetic direction is decided according to the sense of current) at last heat-conducting plate 1 and 4 of following heat-conducting plates, magnetic flow liquid 5 between upper and lower heat-conducting plate is changed to semisolid from liquid under the effect of magnetic field, the degree of its transformation is different because of magnetic field intensity, thereby the temperature exchange speed of upper and lower heat-conducting plate is changed, thereby make the object of two needs handing-over temperature that contact with upper and lower heat-conducting plate respectively realize temperature exchange.
Claims (3)
1. temperature exchange method that adopts magnetic flow liquid as heat-conducting medium, described device is to adopt magnetic flow liquid as heat-conducting medium, it is arranged on two needs carries out between the object of temperature exchange, with solenoid and/or permanent magnet it is applied magnetic field, change the heat transfer coefficient of magnetic flow liquid on the paramagnetic direction by changing magnetic field intensity, thereby change the exchange velocity of temperature between object.
2. temperature exchange device of realizing the employing magnetic flow liquid of said method as heat-conducting medium, it is characterized in that, it comprises the container that is made of upper and lower heat-conducting plate and adiabatic non-magnet_conductible material, be full of magnetic flow liquid at described internal tank, the external stability of container has solenoid and/or permanent magnet, and solenoid and/or permanent magnet are connected with the control power supply; Two objects that the upper and lower heat-conducting plate of container is used for respectively carrying out with needs temperature exchange contact; The upper and lower heat-conducting plate of described container is made of Heat Conduction Material.
3. employing magnetic flow liquid as claimed in claim 2 is characterized in that as the temperature exchange device of heat-conducting medium described upper and lower heat-conducting plate directly carries out the outer surface of two or more different objects of temperature exchange as needs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910191360A CN101726212A (en) | 2009-11-06 | 2009-11-06 | Temperature exchange method and device using magnetorheological fluid as heat-conducting medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910191360A CN101726212A (en) | 2009-11-06 | 2009-11-06 | Temperature exchange method and device using magnetorheological fluid as heat-conducting medium |
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| CN101726212A true CN101726212A (en) | 2010-06-09 |
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| CN200910191360A Pending CN101726212A (en) | 2009-11-06 | 2009-11-06 | Temperature exchange method and device using magnetorheological fluid as heat-conducting medium |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170038166A1 (en) * | 2015-08-05 | 2017-02-09 | International Business Machines Corporation | Controllable magnetorheological fluid temperature control device |
| US9916923B2 (en) | 2015-08-05 | 2018-03-13 | International Business Machines Corporation | Controllable magnetorheological fluid temperature control device |
| CN111812566A (en) * | 2020-07-15 | 2020-10-23 | 沈阳工业大学 | System and method for measuring magnetic properties of liquid material |
-
2009
- 2009-11-06 CN CN200910191360A patent/CN101726212A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170038166A1 (en) * | 2015-08-05 | 2017-02-09 | International Business Machines Corporation | Controllable magnetorheological fluid temperature control device |
| US20170038164A1 (en) * | 2015-08-05 | 2017-02-09 | International Business Machines Corporation | Controllable magnetorheological fluid temperature control device |
| US9916923B2 (en) | 2015-08-05 | 2018-03-13 | International Business Machines Corporation | Controllable magnetorheological fluid temperature control device |
| US20180073821A1 (en) * | 2015-08-05 | 2018-03-15 | International Business Machines Corporation | Controllable magnetorheological fluid temperature control device |
| US20180106560A1 (en) * | 2015-08-05 | 2018-04-19 | International Business Machines Corporation | Controllable magnetorheological fluid temperature control device |
| US9952006B2 (en) * | 2015-08-05 | 2018-04-24 | International Business Machines Corporation | Controllable magnetorheological fluid temperature control device |
| US9953755B2 (en) | 2015-08-05 | 2018-04-24 | International Business Machines Corporation | Controllable magnetorheological fluid temperature control device |
| US9964365B2 (en) * | 2015-08-05 | 2018-05-08 | International Business Machines Corporation | Controllable magnetorheological fluid temperature control device |
| US10222143B2 (en) * | 2015-08-05 | 2019-03-05 | International Business Machines Corporation | Controllable magnetorheological fluid temperature control device |
| US10288364B2 (en) * | 2015-08-05 | 2019-05-14 | International Business Machines Corporation | Controllable magnetorheological fluid temperature control device |
| US11024450B2 (en) | 2015-08-05 | 2021-06-01 | International Business Machines Corporation | Controllable magnetorheological fluid temperature control device |
| CN111812566A (en) * | 2020-07-15 | 2020-10-23 | 沈阳工业大学 | System and method for measuring magnetic properties of liquid material |
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Application publication date: 20100609 |