Self-circulation evaporative cooling electromagnetic stirrer
An electromagnetic stirrer and evaporative cooling technology, which is applied to chemical instruments and methods, dissolution, mixers, etc., can solve the problem of electromagnetic stirrer's strict requirements on the water cooling system, redundant and complicated cooling system equipment, high equipment investment and operating costs, etc. problem, to achieve the effect of improving insulation and reliability, compact structure and low noise
Active Publication Date: 2015-10-14
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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Problems solved by technology
[0009] The oil-water secondary cooling method does not require high water quality and has a long service life, but the cooling effect is not good, and the power of the agitator is difficult to increase
[0010] It can be seen from the above introduction that the electromagnetic stirrer has strict requirements on the water cooling system, the peripheral water treatment equipment is complicated, the equipment investment and operating costs are high, the water quality is high, the water quality is difficult to guarantee, the service life is short, and the cooling system equipment is redundant. , any link failure will cause the winding of the electromagnetic equipment to be damaged or unable to work, causing economic losses to the enterprise
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[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0026] Such as figure 1 As shown, the present invention consists of an electromagnetic stirrer 8, an annular condenser 1, a winding coil 2, an iron core 3, an inner shell 4, an outer shell 5, a bottom plate 6 and an evaporative cooling medium 7. The electromagnetic stirrer 8 of the present invention adopts a fully immersed evaporative cooling structure. The annular condenser 1, the inner shell 4, the outer shell 5 and the bottom plate 6 form a closed cavity, the annular condenser 1 is placed above the electromagnetic stirrer 8, the inner wall and the outer wall of the annular condenser 1 are connected with the inner shell 4 and the outer shell respectively 5. Carry out seamless butt joint, complete sealing is realized by welding or sealing ring, and the water inlet and outlet pipes of annular condenser 1 are passed through water for secondary ...
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The invention relates to a self-circulation evaporative cooling electromagnetic stirrer. A closed cavity is composed of an annular condenser (1), an inner shell (4), an outer shell (5) and a bottom plate (6), a winding coil (2) and an iron core (3) of an electromagnetic stirrer body (8) are placed in the closed cavity, the closed cavity is filled with an evaporative cooling medium (7), and the winding coil (2) and the iron core (3) are completely soaked in the evaporative cooling medium (7). The annular condenser (1) is arranged on the electromagnetic stirrer body (8), and the inner wall and the outer wall of the annular condenser (1) are in seamless butt joint with the inner shell (4) and the outer shell (5) respectively for sealing. Heat generated by the working winding coil (2) of the electromagnetic stirrer body (8) is conducted to the evaporative cooling medium (7), the temperature of the medium rises as the medium absorbs the heat, the medium changes the phase to absorb the heat and evaporates, generated gas rises into the annular condenser (1) and is changed into liquid when going cold, the liquid flows back to the electromagnetic stirrer body (8), and the self-circulation evaporative cooling without external force driving is formed.
Description
technical field [0001] The invention relates to an electromagnetic stirrer, in particular to a cooling system of the electromagnetic stirrer used for continuous casting electromagnetic stirring. Background technique [0002] The induced electromagnetic force of the electromagnetic stirrer is proportional to the square of the current intensity. The larger the current, the higher the central magnetic induction. In general, the electromagnetic stirrer in the crystallization area requires the amplitude of the central magnetic induction intensity to be > 500Gs; in order to ensure that the magnetic induction intensity requirement is met, there must be a sufficiently large current, usually above 400A. The current density in the stirrer wire is generally 12-18A / mm 2 . The electromagnetic force that the electromagnetic stirrer acts on the molten steel and the stirring speed of the molten steel are not only related to the current intensity, but also greatly affected by the power...
Claims
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IPC IPC(8): B22D11/115B01F13/08
Inventor 栾凤飞宋福川陈彪连广坤袁佳毅余顺周
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI