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Superheated steam generator

A technology of superheated steam and generating device, applied in induction heating device, coil device, steam superheating and other directions, can solve the problems of poor heat transfer efficiency, lengthened heating body, small heat transfer area, etc., to improve efficiency and temperature. Controllability and the effect of large heat transfer area

Inactive Publication Date: 2012-08-08
TOKUDEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the above superheated steam generating device, since the heater that heats water to obtain saturated water vapor is a container filled with water, the heat transfer area in contact with water is small and the heat transfer efficiency is poor, and it is difficult to carry out water heating. temperature management
In addition, since the heater that heats the saturated steam heats the saturated steam that travels straight in the heating body, the heating body needs to be lengthened in order to transfer sufficient heat, and there is a problem of increasing the size of the device.

Method used

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Examples

Experimental program
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Embodiment 1

[0056] First, refer to figure 2 and image 3 The basic structure of an induction heater used in a superheated steam generator will be described. figure 2Among them, the iron core 1 constitutes a closed magnetic circuit (hereinafter referred to as the iron core, and the figure shows the column core part wound with coils), the primary coil 2 is wound on the iron core, and the conductor tube 3 is composed of SUS (stainless steel) wound on the iron core, etc. , the solder joint 4 mechanically connects and fixes the conductor pipe 3 and electrically connects the conductor pipe 3 . TIG welding is used to mechanically connect and fix the adjacent conductor tubes 3 and to electrically connect the adjacent conductor tubes 3 , so that the conductor tube 3 becomes a secondary coil with one turn that electrically short-circuits the secondary coil. Under this structure, if an AC voltage is applied to the primary coil 2, an alternating magnetic flux is generated in the iron core 1, and ...

Embodiment 2

[0067] The superheated steam generating device of this embodiment 2, like embodiment 1, is also composed of two induction heaters through the conductor pipe connecting the secondary coils of the two induction heaters, as the primary coil of each induction heater. The coil also uses a conductor tube, and water flows through the conductor tube. refer to Figure 6 and Figure 7 The induction heater used in this Example 2 will be described. Figure 6 shows the column core 11 that forms a closed magnetic circuit by the connecting core 11b, the conductor tube 12 made of copper wound on the column core (the primary coil, the illustrated example is a conductor tube with a quadrilateral cross-sectional shape), and the coil is wound on the column core. Conductor pipe 13 made of SUS or the like on the iron core (secondary coil, the illustrated example is a conductor pipe with a circular cross-sectional shape), insulating paper 15 and solvent-free insulating adhesive layer 16 .

[0068...

Embodiment 3

[0078] In the above embodiment 1 and embodiment 2, two induction heaters are used to form the superheated steam generating device, so a T-connected transformer structure and a single-phase transformer structure are used, which causes the structure of the superheated steam generating device to be complicated. It takes trouble in production. Embodiment 3 makes the structure of the superheated steam generator simpler. In said embodiment 1 and embodiment 2, two induction heaters are used, but in embodiment 3, one induction heater generating saturated water vapor among the two is divided into two, and a total of three induction heaters are used. The superheated steam generation device is constructed, and the closed magnetic circuit core (connecting core) is generalized to form a three-phase transformer structure with three columns (three cores wound with coils). With the above configuration, the phase-to-phase voltage of the three-phase AC power supply can be applied to the primar...

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Abstract

The invention provides a superheated steam generator including: a first sensing heater formed by winding a conductor pipe on an iron core of a closed magnetic circuit coiled with a primary coil, wherein the conductor pipe heats through alternating current flowing through the primary coil; and a second sensing heater formed by winding a conductor pipe on an iron core coiled with a primary coil, wherein the conductor pipe heats through the alternating current flowing through the primary coil. One end of the first sensing heater connects with a water supply pipe while the other end of the conductor pipe of the first sensing heater connects with an end of the conductor pipe of the second sensing heater. Water is filled into the conductor pipe of the first sensing heater, thereby generating saturated steam. And the generated saturated steam is made to flow through the conductor pipe of the second sensing heater, and the generated saturated steam is heated, thereby generating superheated steam generator.

Description

technical field [0001] The present invention relates to a superheated steam generator for generating superheated steam by induction heating. Background technique [0002] Generate saturated water vapor at 100°C to 150°C by heating a container filled with water, and then heat the generated saturated water vapor to 300°C to 800°C with the steam flow, thereby generating high temperature superheating at 300°C to 800°C water vapor. Induction heating is sometimes used when heating saturated water vapor. In the induction heating in this case, a heating element formed with a plurality of through holes is disposed inside a cylindrical coil wound with a conductive wire in a cylindrical shape, and the heating element generates Joule heat by inducting an alternating current flowing through the coil, When saturated water vapor passes through the through holes, it is heated by the heat of the heating element. [0003] Patent Document 1: Japanese Patent Laid-Open Publication No. 2005-23...

Claims

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Application Information

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IPC IPC(8): F22G1/16F22B1/28H05B6/10
CPCF22G1/165H05B6/06H05B6/10H05B6/36
Inventor 外村彻藤本泰广森本研二西山忠土居信一
Owner TOKUDEN CO LTD
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