Temperature exchange method and device using magnetorheological fluid as heat-conducting medium
A magneto-rheological fluid and heat-conducting medium technology, applied in heat exchange equipment, heat transfer modification, lighting and heating equipment, etc., can solve problems such as low reliability, stuck, complex structure, etc., and achieve high reliability Effect
Inactive Publication Date: 2010-06-09
CHONGQING MATERIALS RES INST
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[0002] The temperature exchange between objects can be carried out in many ways. A common temperature exchange device is to adjust the temperature exchange speed by adjusting the flow rate of gas (liquid) at different temperatures in the temperature exchanger. These adjustment methods will pass some actuators (such as valves, etc.) to complete the specific mechanical actions, these mechanical actions may be out of control due to faults and jams, and the structure is complex and the reliability is not high
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[0012] see figure 1 and figure 2 , the container formed by the upper heat conducting plate 1, the heat insulating and non-magnetic conducting material 2 and the lower heat conducting plate 4 is filled with magnetorheological fluid 5, and the electromagnetic coil 3 is located outside the container. The electromagnetic coil is connected with the control power supply. The upper and lower heat conducting plates of the container are used to respectively contact with two objects requiring temperature exchange or directly serve as the outer surfaces of two or more different objects requiring temperature exchange. The upper and lower heat conducting plates of the container are made of heat conducting materials.
[0013] When the electromagnetic coil 3 is supplied with direct current, a magnetic field is formed between the upper heat conduction plate 1 and the lower heat conduction plate 4 (the direction of the magnetic field depends on the direction of the current), so that the mag...
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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 [0001] The invention relates to temperature regulation technology, in particular to the technology of using magnetorheological fluid as heat conduction material to exchange temperature between different objects. Background technique [0002] The temperature exchange between objects can be carried out in many ways. A common temperature exchange device is to adjust the temperature exchange speed by adjusting the flow rate of gas (liquid) at different temperatures in the temperature exchanger. These adjustment methods will pass some actuators (such as valves, etc.) to complete the specific mechanical actions, these mechanical actions may be out of control due to failure and jamming, and the structure is complex and the reliability is not high. However, the temperature exchange device of the present invention adjusts the exchange speed of temperature by adjusting the intensity of the electromagnetic field, so it is easy to use and reliable in operation. Content...
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IPC IPC(8): F28F13/00
Inventor 谭和平
Owner CHONGQING MATERIALS RES INST