Abstract: An induction heated roll apparatus includes a roller main body, an induction heating mechanism, and a cooling mechanism. The induction heating mechanism heats the roller main body, while the cooling mechanism cools the roller main body and/or the induction heating mechanism using a cavity portion between the roller main body and the induction heating mechanism. The cooling mechanism has intake apertures and discharge apertures that are formed in a journal flange portion and communicate with the cavity portion, a suction mechanism that suctions a gas in the cavity portion through the discharge apertures, and a mist supply mechanism that supplies mist to the intake apertures.

Abstract: In order to supply sufficient electric power to an induction heating mechanism even with a small-diameter roller, an induction heated roll apparatus includes a roller body having a hollow cylindrical shape, a drive shaft provided at each of both ends of the roller body and rotatably supported, an induction heating mechanism that is provided inside the roller body and allows the roller body to inductively generate heat, and a support shaft that extends from both ends of the induction heating mechanism and supports the induction heating mechanism. The support shaft is rotatably supported on an inner peripheral surface at both ends of the roller body via a bearing.

Abstract: The present disclosure is intended to supply sufficient electric power to an induction heating mechanism even with a small-diameter roller, and includes a roller body having a hollow cylindrical shape, a drive shaft provided at each of both ends of the roller body and rotatably supported, an induction heating mechanism that is provided inside the roller body and allows the roller body to inductively generate heat, and a support shaft that extends from both ends of the induction heating mechanism and supports the induction heating mechanism, in which the support shaft is rotatably supported on an inner peripheral surface at both ends of the roller body via a bearing.

Abstract: The present invention is intended to adjust an amount of thermal expansion at a desired position in an axial direction of a roller body of an induction heated roll apparatus, regardless of an amount of load heat extracted from the roller body by a heating target object. The induction heated roll apparatus includes the roller body that is cylindrical and has a hollow space, a plurality of induction coils provided in an inside along the axial direction of the roller body, a power supply circuit that controls power supplied to each of the plurality of induction coils individually, and a cooling mechanism that cools the roller body by supplying a refrigerant to the roller body.

Abstract: The present disclosure is intended to supply sufficient electric power to an induction heating mechanism even with a small-diameter roller, and includes a roller body having a hollow cylindrical shape, a drive shaft provided at each of both ends of the roller body and rotatably supported, an induction heating mechanism that is provided inside the roller body and allows the roller body to inductively generate heat, and a support shaft that extends from both ends of the induction heating mechanism and supports the induction heating mechanism, in which the support shaft is rotatably supported on an inner peripheral surface at both ends of the roller body via a bearing.

Abstract: An induction heated roll apparatus includes a roller main body, an induction heating mechanism, and a cooling mechanism. The induction heating mechanism performs induction heating on the roller main body, and the cooling mechanism cools the roller main body and/or the induction heating mechanism using a cavity portion between the roller main body and the induction heating mechanism. The cooling mechanism has intake apertures that are formed in a journal flange portion on a first end side in an axial direction of the roller main body and communicate with the cavity portion, discharge apertures that are formed in a journal flange portion on a second end side in the axial direction of the roller main body and communicate with the cavity portion, a suction mechanism that suctions a gas in the cavity portion through the discharge apertures, and a mist supply mechanism that supplies mist to the intake apertures.

Abstract: The present invention uniformly cools a roll body and/or an induction heating mechanism by gas without complicating the configuration around the roll body. An induction heated roll apparatus includes a roll body having a hollow part, an induction heating mechanism disposed in the hollow part to subject the roll body to induction heating, and a cooling mechanism to cool the roll body and/or the induction heating mechanism by generating a gas flow in a clearance between the roll body and the induction heating mechanism. The cooling mechanism includes a suction port disposed on one axial end side of the roll body that communicates with the clearance, an exhaust port disposed on an opposite axial end side of the roll body that communicates with the clearance, and a suction mechanism coupled to the exhaust port that sucks the gas in the clearance from the exhaust port.

Abstract: The present invention is intended to inform a user of a maintenance timing for a superheated steam generator. The present invention includes an induction heating type or electrically heating type superheated steam generation section and an informing section. The superheated steam generation section generates superheated steam by heating steam. The informing section transmits maintenance information by employing, as a parameter, an operating temperature of the superheated steam generation section and an operating time at the operating temperature.

Abstract: The present disclosure, for the prevention of a possible degradation of an induction coil in insulating performance by preventing condensate formation on an induction coil, provides a device that is configured to include a roller main body, an induction heat generator provided in the roller main body and having the induction coil for heating the roller main body inductively, a cooling mechanism configured to introduce a coolant mist into a clearance portion between the roller main body and the induction heat generator for cooling the roller main body, an AC voltage application part configured to apply AC voltage to the induction coil, and a DC voltage application part configured to apply DC voltage to the induction coil.

Abstract: The present invention uniformly cools a roll body and/or an induction heating mechanism by gas without complicating the configuration around the roll body. An induction heated roll apparatus includes a roll body having a hollow part, an induction heating mechanism disposed in the hollow part to subject the roll body to induction heating, and a cooling mechanism to cool the roll body and/or the induction heating mechanism by generating a gas flow in a clearance between the roll body and the induction heating mechanism. The cooling mechanism includes a suction port disposed on one axial end side of the roll body that communicates with the clearance, an exhaust port disposed on an opposite axial end side of the roll body that communicates with the clearance, and a suction mechanism coupled to the exhaust port that sucks the gas in the clearance from the exhaust port.

Abstract: The present disclosure, for the prevention of a possible degradation of an induction coil in insulating performance by preventing condensate formation on an induction coil, provides a device that is configured to include a roller main body, an induction heat generator provided in the roller main body and having the induction coil for heating the roller main body inductively, a cooling mechanism configured to introduce a coolant mist into a clearance portion between the roller main body and the induction heat generator for cooling the roller main body, an AC voltage application part configured to apply AC voltage to the induction coil, and a DC voltage application part configured to apply DC voltage to the induction coil.