公开(公告)号：KR100841930B1

公开(公告)日：2008-06-27

申请号：KR1020070009731

申请日：2007-01-31

Applicant: 성균관대학교산학협력단

Inventor： 석창성 ,  김형익 ,  김대진 ,  박홍선 ,  김문영 ,  양성호

IPC: H05B6/02 ,  H05B6/36

CPC classification number: H05B11/00 ,  H05B1/02 ,  H05B3/62 ,  H05B6/101 ,  H05B6/36 ,  H05B2203/032 ,  H05B2213/07

Abstract: An electric furnace of an induction heating type and a control method thereof are provided to prevent a local temperature rise of a heated substance by heating the heated substance with radiant heat evenly discharged from an inner heater. An electric furnace(1) of an induction heating type includes an inner heater(60), a tube-shaped heat insulator(30), an induction coil(10), a cooling water passage(20), a cooling water flow rate control device, a temperature sensor, and a cooling water flow rate control unit. The inner heater is formed in a tube shape with an inner space for heating a heated substance(50) and heats the heated substance by radiant heat(70). The tube-shaped heat insulator surrounds an outer surface of the inner heater. The induction coil is positioned to surround the outer surface of the inner heater at least one time by being laid in the heat insulator and heats the inner heater through electromagnetic induction. The cooling water passage is formed inside the induction coil to prevent heating of the induction coil. The cooling water flow rate control device controls a flow rate of the cooling water supplied to the cooling water passage. The temperature sensor measures a temperature of at least one of the heated substance, the inner heater, or the induction coil. The cooling water flow rate control unit compares the temperature measured by the temperature sensor with a set temperature and controls operation of the cooling water flow rate control device according to the comparison result.

Abstract translation: 提供一种感应加热型电炉及其控制方法，以通过从内部加热器均匀排出的辐射热加热被加热物质来防止加热物质的局部升温。 感应加热型电炉（1）包括内部加热器（60），管状绝热体（30），感应线圈（10），冷却水通道（20），冷却水流量控制 装置，温度传感器和冷却水流量控制单元。 内部加热器形成为管状，其具有用于加热被加热物质（50）的内部空间，并且通过辐射热（70）加热被加热物质。 管状绝热体围绕内部加热器的外表面。 感应线圈定位成通过放置在绝热体中至少一次地包围内部加热器的外表面，并通过电磁感应加热内部加热器。 冷却水通道形成在感应线圈的内部，以防止感应线圈的加热。 冷却水流量控制装置控制供给到冷却水通路的冷却水的流量。 温度传感器测量加热物质，内部加热器或感应线圈中的至少一个的温度。 冷却水流量控制单元将由温度传感器测量的温度与设定温度进行比较，并且根据比较结果控制冷却水流量控制装置的操作。