JP2023067383A

JP2023067383A - Superheated steam generator

Info

Publication number: JP2023067383A
Application number: JP2021178562A
Authority: JP
Inventors: 深水嶋; Fukashi Mizushima
Original assignee: Tokuden Co Ltd Kyoto
Current assignee: Tokuden Co Ltd Kyoto
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2023-05-16

Abstract

To enable, for a superheated steam generator with a three-phase AC supply, improved heat efficiency and simplification and miniaturization of the generator.SOLUTION: Superheated steam generation units 100A-100C each comprise a spiral preheat conductor pipe 3 serving as a primary coil to which a single-phase alternating current voltage is applied, and disposed around a closed magnetic path core, and a spiral superheat conductor pipe 4 serving as a secondary coil, and disposed around the closed magnetic path core, the preheat conductor pipe comprising a first preheat conductor tube 31, a second preheat conductor tube 32, and a third preheat conductor tube 33 that are concentrically disposed around the closed magnetic path core, the superheat conductor pipe comprising a first superheat conductor tube 41 and a second superheat conductor tube 42 that are concentrically disposed around the closed magnetic path core and that are spirally wound in mutually opposite directions, for the conductor tubes, from the inside in a radial direction, the second preheat conductor tube, the second superheat conductor tube, the third preheat conductor tube, the first superheat conductor tube, and the first preheat conductor tube being arranged in this order.SELECTED DRAWING: Figure 3

Description

本発明は、過熱水蒸気生成装置に関するものである。 The present invention relates to a superheated steam generator.

従来の過熱水蒸気生成装置としては、特許文献１に示すように、三相交流電源を用いたものにおいて、一次コイルとして第１導体管及び第２導体管を用い、当該第１導体管及び第２導体管の間に二次コイルである第３導体管（過熱導体管）を設けたものが考えられている。この過熱水蒸気生成装置では、第１導体管及び第２導体管は通電加熱されるとともに、第３導体管の放熱を利用して加熱されるので、第３導体管からの装置外部への放熱を低減でき、熱効率を上げることができる。 As a conventional superheated steam generator, as shown in Patent Document 1, a three-phase AC power supply is used, and a first conductor pipe and a second conductor pipe are used as a primary coil, and the first conductor pipe and the second conductor pipe are used as primary coils. A third conductor tube (superheating conductor tube), which is a secondary coil, is provided between the conductor tubes. In this superheated steam generator, the first conductor pipe and the second conductor pipe are electrically heated and heated by utilizing the heat radiation of the third conductor pipe. can be reduced and thermal efficiency can be increased.

そして、この過熱水蒸気生成装置では、第３導体管が、互いに逆向きに螺旋状に巻回された内側管要素及び外側管要素を有し、それら内側管要素及び外側管要素の軸方向一端部同士及び軸方向他端部同士を接続管要素によって流体的に接続するとともに短絡接続した構成としてある。 In this superheated steam generator, the third conductor tube has an inner tube element and an outer tube element spirally wound in opposite directions, and one axial end portion of the inner tube element and the outer tube element It is configured such that the two end portions are fluidly connected and short-circuited by connecting pipe elements.

しかしながら、上記の過熱水蒸気生成装置では、第３導体管の径方向外側の放熱を第１導体管の加熱に利用し、第３導体管の径方向内側の放熱を第２導体管の加熱に利用できるものの、第３導体管の内側管要素及び外側管要素の間の放熱を有効活用することができない。 However, in the superheated steam generator described above, heat radiation from the radially outer side of the third conductor tube is used to heat the first conductor tube, and heat radiation from the radially inner side of the third conductor tube is used to heat the second conductor tube. Although it can be done, the heat dissipation between the inner tube element and the outer tube element of the third conductor tube cannot be effectively utilized.

特開２０２１－４４２００号公報Japanese Patent Application Laid-Open No. 2021-44200

そこで本発明は、上記問題点を解決するためになされたものであり、三相交流電源を用いた過熱水蒸気生成装置において、過熱導体管の放熱を有効活用して熱効率を向上するとともに、過熱水蒸気生成装置の簡略化及び小型化を可能にすることをその主たる課題としたものである。 Therefore, the present invention has been made to solve the above problems, and in a superheated steam generator using a three-phase AC power supply, the heat dissipation of the superheating conductor tube is effectively used to improve the thermal efficiency, and the superheated steam The main subject is to enable simplification and miniaturization of the generator.

すなわち、本発明に係る過熱水蒸気生成装置は、導体管を電磁誘導により発熱させて当該導体管を流れる水を加熱して過熱水蒸気を生成する過熱水蒸気生成装置であって、三相の閉磁路鉄心における３つの脚鉄心を用いて３つの過熱水蒸気生成ユニットを構成し、当該３つの過熱水蒸気生成ユニットに互いに異なる相の交流電圧を印加して過熱水蒸気を生成するものであり、前記各過熱水蒸気生成ユニットは、１相の交流電圧が印加される一次コイルであり、前記閉磁路鉄心の周りに配置された螺旋状の予熱導体管と、誘導電流が流れる二次コイルであり、前記閉磁路鉄心の周りに配置された螺旋状の過熱導体管とを備え、前記予熱導体管は、前記閉磁路鉄心の周りに同心状に配置された第１予熱導体管、第２予熱導体管及び第３予熱導体管を有し、前記過熱導体管は、前記閉磁路鉄心の周りに同心状に配置されるとともに互いに逆向きに螺旋状に巻回された第１過熱導体管及び第２過熱導体管と、前記第１過熱導体管及び前記第２過熱導体管の軸方向一端部同士及び軸方向他端部同士を流体的に接続するとともにそれらを短絡接続する接続管要素とを有し、前記各導体管は径方向内側から前記第２予熱導体管、前記第２過熱導体管、前記第３予熱導体管、前記第１過熱導体管及び前記第１予熱導体管の順に配置されるとともに、前記第１予熱導体管、前記第２予熱導体管、前記第３予熱導体管、前記過熱導体管の順に直列に接続されており、前記第１予熱導体管に設けられた導入ポートから水又は水蒸気を導入して、前記第２予熱導体管及び前記第３予熱導体管を介して、前記過熱導体管に設けられた導出ポートから過熱水蒸気を導出することを特徴とする。 That is, the superheated steam generator according to the present invention is a superheated steam generator that generates superheated steam by generating heat in a conductor pipe by electromagnetic induction to heat water flowing through the conductor pipe, and is a three-phase closed magnetic circuit core. Three superheated steam generation units are configured using the three leg iron cores in, and alternating voltages of different phases are applied to the three superheated steam generation units to generate superheated steam, and each of the above superheated steam generation The unit is a primary coil to which a one-phase AC voltage is applied, a helical preheating conductor tube arranged around the closed magnetic circuit core, and a secondary coil through which an induced current flows, and the closed magnetic circuit core. a helical superheating conductor tube arranged around the preheating conductor tube, the preheating conductor tube comprising a first preheating conductor tube, a second preheating conductor tube, and a third preheating conductor tube concentrically arranged around the closed magnetic circuit core. a first overheating conductor tube and a second overheating conductor tube that are arranged concentrically around the closed magnetic circuit core and spirally wound in opposite directions; a connecting pipe element for fluidly connecting one axial end portions and the other axial end portions of the first overheating conductor tube and the second overheating conductor tube and short-circuiting them; The second preheating conductor tube, the second overheating conductor tube, the third preheating conductor tube, the first overheating conductor tube, and the first preheating conductor tube are arranged in this order from the radially inner side, and the first preheating conductor The pipe, the second preheating conductor pipe, the third preheating conductor pipe, and the superheating conductor pipe are connected in series in this order, and water or steam is introduced from the introduction port provided in the first preheating conductor pipe, It is characterized in that superheated steam is led out from a lead-out port provided in the overheating conductor pipe through the second preheating conductor pipe and the third preheating conductor pipe.

このような過熱水蒸気生成装置によれば、３つの過熱水蒸気生成ユニットに互いに異なる相の交流電圧を印加して過熱水蒸気を生成するので、三相交流電源を用いた過熱水蒸気生成装置において過熱水蒸気の生成能力を向上させることができる。
そして、一次コイルとして第１予熱導体管及び第２予熱導体管を用いているとともに、当該第１予熱導体管及び第２予熱導体管の間に二次コイルである過熱導体管を設けているので、第１予熱導体管及び第２予熱導体管は通電加熱されるとともに、過熱導体管の放熱を利用して加熱されるので、過熱導体管からの装置外部への放熱を低減でき、熱効率を上げることができる。
特に、本発明では、一次コイルとして第３予熱導体管を有しており、当該第３予熱導体管を過熱導体管の第１過熱導体管及び第２過熱導体管の間に設けているので、第１過熱導体管及び第２過熱導体管の間への放熱を有効活用して加熱され、熱効率をより一層上げることができる。
ここで、一次コイルを形成する第１予熱導体管、第２予熱導体管及び第３予熱導体管は、それぞれの巻数、導体管の通電断面積、導体管の通流孔径の設定により、発熱比や流体への熱伝達面積比、流体の流速比を調整することができる。
また、第１予熱導体管、第２予熱導体管、第３予熱導体管、過熱導体管の順に直列に接続されており、第１予熱導体管に設けられた導入ポートから水又は水蒸気を導入して、第２予熱導体管及び第３予熱導体管を介して、過熱導体管に設けられた導出ポートから過熱水蒸気を導出するので、過熱水蒸気生成装置の簡略化及び小型化することができる。
さらに、過熱導体管を第１過熱導体管と第２過熱導体管と接続管要素とから構成しているので、導体管とは別に電気接続部材を設ける必要が無く、導体管自体の構成により短絡回路を形成することができる。また、接続管要素が各管要素の軸方向一端部同士を接続し、軸方向他端部同士を接続する構成であり、短絡回路を構成するための接続構造を簡単にすることができる。 According to such a superheated steam generator, AC voltages of mutually different phases are applied to the three superheated steam generator units to generate superheated steam. You can improve your ability to generate.
Since the first preheating conductor tube and the second preheating conductor tube are used as the primary coil, and the overheating conductor tube as the secondary coil is provided between the first preheating conductor tube and the second preheating conductor tube. , The first preheating conductor tube and the second preheating conductor tube are electrically heated and heated by utilizing the heat radiation of the superheating conductor tube, so that the heat radiation from the overheating conductor tube to the outside of the apparatus can be reduced, and the thermal efficiency is increased. be able to.
In particular, in the present invention, the third preheating conductor tube is provided as the primary coil, and the third preheating conductor tube is provided between the first overheating conductor tube and the second overheating conductor tube of the overheating conductor tube. It is heated by effectively utilizing the heat radiation between the first overheating conductor tube and the second overheating conductor tube, and the thermal efficiency can be further increased.
Here, the first preheating conductor tube, the second preheating conductor tube, and the third preheating conductor tube that form the primary coil are set by setting the number of turns, the current-carrying cross-sectional area of the conductor tube, and the flow hole diameter of the conductor tube. , the area ratio of heat transfer to the fluid, and the flow velocity ratio of the fluid can be adjusted.
In addition, the first preheating conductor pipe, the second preheating conductor pipe, the third preheating conductor pipe, and the superheating conductor pipe are connected in series in this order, and water or steam is introduced from the introduction port provided in the first preheating conductor pipe. Since the superheated steam is led out from the lead-out port provided in the superheating conductor pipe through the second preheating conductor pipe and the third preheating conductor pipe, the superheated steam generator can be simplified and downsized.
Furthermore, since the superheating conductor tube is composed of the first superheating conductor tube, the second superheating conductor tube, and the connection tube element, there is no need to provide an electrical connection member separately from the conductor tube, and the configuration of the conductor tube itself eliminates the short circuit. A circuit can be formed. In addition, the connection pipe element connects the axial ends of each pipe element to each other and connects the other axial ends to each other, which simplifies the connection structure for forming a short circuit.

過熱導体管では導出ポート側が最も高温になり、この部分からの放熱が最も大きくなる。導出ポート側からの放熱を有効活用するためには、前記過熱導体管の軸方向一端部に前記導出ポートが形成されており、前記第３予熱導体管は、前記導出ポートと同じ側の軸方向一端部から水又は水蒸気が導入されることが望ましい。
この構成であれば、第３熱導体管に流入する比較的温度が低い水又は水蒸気を効率良く予熱することができる。 In the superheating conductor tube, the outlet port side becomes the hottest, and the heat radiation from this part is the largest. In order to make effective use of heat radiation from the lead-out port side, the lead-out port is formed at one axial end of the overheating conductor pipe, and the third preheating conductor pipe extends axially on the same side as the lead-out port. Water or steam is preferably introduced from one end.
With this configuration, the relatively low-temperature water or steam flowing into the third heat conductor pipe can be efficiently preheated.

また、導入ポートに流入する水又は水蒸気を効率良く予熱するためには、前記導入ポートは、前記第１予熱導体管において前記導出ポートと同じ側の軸方向一端部に形成されていることが望ましい。 Further, in order to efficiently preheat water or steam flowing into the introduction port, it is desirable that the introduction port is formed at one end in the axial direction on the same side as the outlet port in the first preheating conductor pipe. .

過熱導体管の放熱が装置外部へ漏れること及び過熱導体管の放熱による各予熱導体管の加熱を安全に実現するためには、前記第１予熱導体管と前記第１過熱導体管との間、前記第１過熱導体管と前記第３予熱導体管との間、前記第３予熱導体管と前記第２過熱導体管との間、及び、前記第２過熱導体管と前記第２予熱導体管との間に断熱材が充填されていることが望ましい。
この構成であれば、第１予熱導体管と第１過熱導体管との間の断熱材の厚み、第２予熱導体管と第２過熱導体管との間の断熱材の厚み、及び、第３予熱導体管と第１、第２過熱導体管との間の断熱材の厚みにより、第１、第２過熱導体管から第１予熱導体管、第２予熱導体管及び第３予熱導体管への熱伝達比を調整することができる。 In order to prevent the heat radiation from the overheating conductor tube from leaking to the outside of the device and to safely realize the heating of each preheating conductor tube by the heat radiation from the overheating conductor tube, between the first preheating conductor tube and the first overheating conductor tube, Between the first overheating conductor tube and the third preheating conductor tube, between the third preheating conductor tube and the second overheating conductor tube, and between the second overheating conductor tube and the second preheating conductor tube It is desirable that a heat insulating material is filled between
With this configuration, the thickness of the heat insulating material between the first preheating conductor tube and the first overheating conductor tube, the thickness of the heat insulating material between the second preheating conductor tube and the second overheating conductor tube, and the third Depending on the thickness of the heat insulating material between the preheating conductor pipe and the first and second overheating conductor pipes, the distance from the first and second overheating conductor pipes to the first preheating conductor pipe, the second preheating conductor pipe and the third preheating conductor pipe The heat transfer ratio can be adjusted.

各配管の具体的な接続構成としては、前記第１予熱導体管、前記第２予熱導体管及び前記第３予熱導体管は単層巻きであり、前記第１予熱導体管の軸方向一端部に前記導入ポートが形成されており、前記第１予熱導体管の軸方向他端部が前記第２予熱導体管の軸方向他端部に接続されており、前記第２予熱導体管の軸方向一端部が前記第３予熱導体管の軸方向一端部に接続されていることが考えられる。
この構成において、前記交流電圧を印加する交流電源は、前記第１予熱導体管の軸方向一端部及び前記第３予熱導体管の軸方向他端部に接続されていることが望ましい。 As a specific connection configuration of each pipe, the first preheating conductor pipe, the second preheating conductor pipe, and the third preheating conductor pipe are single-layer wound, and at one end in the axial direction of the first preheating conductor pipe The introduction port is formed, the other axial end of the first preheating conductor pipe is connected to the other axial end of the second preheating conductor pipe, and the one axial end of the second preheating conductor pipe is connected to the other axial end of the second preheating conductor pipe. is connected to one axial end of the third preheating conductor tube.
In this configuration, it is preferable that an AC power supply that applies the AC voltage is connected to one axial end of the first preheating conductor tube and the other axial end of the third preheating conductor tube.

このように構成した本発明によれば、三相交流電源を用いた過熱水蒸気生成装置において、過熱導体管の放熱を有効活用して熱効率を向上するとともに、過熱水蒸気生成装置の簡略化及び小型化を可能にすることができる。 According to the present invention configured in this way, in a superheated steam generator using a three-phase AC power supply, the heat radiation of the superheating conductor tube is effectively used to improve the thermal efficiency, and the superheated steam generator is simplified and miniaturized. can make it possible.

本発明の一実施形態に係る過熱水蒸気生成装置の構成を模式的に示す断面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing which shows typically the structure of the superheated steam generator which concerns on one Embodiment of this invention. 同実施形態の過熱水蒸気生成ユニットの構成を模式的に示す断面図である。It is a sectional view showing typically composition of a superheated steam generation unit of the embodiment. 同実施形態の過熱水蒸気生成装置の径方向における配置を模式的に示す断面図である。It is a sectional view showing typically arrangement in the diameter direction of a superheated steam generator of the embodiment. 同実施形態の（ａ）閉磁路鉄心の正面図、（ｂ）ヨーク鉄心の平面図、（ｃ）脚鉄心の平面図及び正面図、（ｄ）ヨーク鉄心と脚鉄心の衝合部を示す図である。(a) front view of the closed magnetic circuit core, (b) plan view of the yoke core, (c) plan view and front view of the leg core, and (d) diagram showing the abutting portion of the yoke core and the leg core of the same embodiment. is. 同実施形態の３つの過熱水蒸気生成ユニットのコイル接続及び流体の流れを示す図である。It is a figure which shows the coil connection and the flow of the fluid of three superheated steam generation units of the same embodiment. 同実施形態の各過熱水蒸気生成ユニットのコイル接続及び流体の流れを示す図である。It is a figure which shows the coil connection and the flow of the fluid of each superheated-steam production|generation unit of the same embodiment. 同実施形態の過熱導体管の構成を模式的に示す側面図である。It is a side view which shows typically the structure of the overheating conductor pipe|tube of the same embodiment.

以下に本発明に係る過熱水蒸気生成装置の一実施形態について図面を参照して説明する。 An embodiment of a superheated steam generator according to the present invention will be described below with reference to the drawings.

＜１．装置構成＞
本実施形態に係る過熱水蒸気生成装置１００は、三相交流電源を用いたものであり、導体管を電磁誘導により発熱させて当該導体管を流れる水を加熱して過熱水蒸気を生成するものである。その他、過熱水蒸気生成装置１００としては、例えば、外部で生成された飽和水蒸気を加熱して過熱水蒸気を発生するものであっても良い。 <1. Device configuration>
The superheated steam generator 100 according to the present embodiment uses a three-phase AC power supply, and generates superheated steam by generating heat in a conductor pipe by electromagnetic induction and heating water flowing through the conductor pipe. . In addition, the superheated steam generator 100 may be, for example, one that heats saturated steam generated outside to generate superheated steam.

具体的に過熱水蒸気生成装置１００は、図１～図３に示すように、三相の閉磁路鉄心２における３つの脚鉄心２１、２２、２３を用いて３つの過熱水蒸気生成ユニット１００Ａ、１００Ｂ、１００Ｃを構成し、当該３つの過熱水蒸気生成ユニット１００Ａ、１００Ｂ、１００Ｃに互いに異なる相の交流電圧を印加して過熱水蒸気を生成するものである。 Specifically, as shown in FIGS. 1 to 3, the superheated steam generator 100 uses three leg cores 21, 22, and 23 in the three-phase closed magnetic circuit core 2 to create three superheated steam generator units 100A, 100B, 100C, and AC voltages of mutually different phases are applied to the three superheated steam generating units 100A, 100B, and 100C to generate superheated steam.

ここで、三相の閉磁路鉄心２は、図４に示すように、３つの脚鉄心２１、２２、２３と、当該３つの脚鉄心２１、２２、２３の一方の端面（図４では上端面）同士を接続する上側ヨーク鉄心２４と、３つの脚鉄心２１、２２、２３の他方の端面（図４では下端面）同士を接続する下側ヨーク鉄心２５とを有している。ここで、３つの脚鉄心２１、２２、２３は、三角形の頂点に位置しており、これらを接続する各ヨーク鉄心２４、２５は、Ｙ字形状をなすものである。また、各脚鉄心２１、２２、２３は、積層鉄心である。なお、脚鉄心２１、２２、２３は、例えば、インボリュート形状に湾曲された湾曲部を有する多数の磁性鋼板を放射状に積層して円筒状に形成した円筒状のインボリュート鉄心である。なお、各脚鉄心２１、２２、２３は、平板状をなす多数の磁性鋼板を放射状に積層して円筒状に形成した円筒状の鉄心であっても良い。 Here, as shown in FIG. 4, the three-phase closed magnetic circuit core 2 includes three leg cores 21, 22, and 23, and one end surface (upper end surface in FIG. 4) of the three leg cores 21, 22, and 23. ), and a lower yoke core 25 that connects the other end surfaces (lower end surfaces in FIG. 4) of the three leg cores 21, 22, and 23. Here, the three leg iron cores 21, 22, 23 are positioned at the vertices of a triangle, and the yoke iron cores 24, 25 connecting them form a Y shape. Each of the leg cores 21, 22, 23 is a laminated core. The leg iron cores 21, 22, and 23 are, for example, cylindrical involute iron cores formed by radially laminating a large number of magnetic steel plates each having an involute curved portion. The leg iron cores 21, 22, and 23 may be cylindrical iron cores formed by radially laminating a large number of flat magnetic steel plates.

各過熱水蒸気生成ユニット１００Ａ、１００Ｂ、１００Ｃは、図１～図３に示すように、前記脚鉄心２１、２２、２３と、１相の交流電圧が印加される一次コイルであり、閉磁路鉄心２の周りに配置される螺旋状（コイル状）の予熱導体管３と、誘導電流が流れる二次コイルであり、閉磁路鉄心２の周りに配置される螺旋状（コイル状）の過熱導体管４とを備えている。なお、３つの脚鉄心２１、２２、２３は三角形の頂点に位置していることから、３つの過熱水蒸気生成ユニット１００Ａ、１００Ｂ、１００Ｃも三角形の頂点に位置することになる（図３参照）。 As shown in FIGS. 1 to 3, each of the superheated steam generating units 100A, 100B, and 100C includes the leg iron cores 21, 22, and 23, and a primary coil to which a single-phase AC voltage is applied. A helical (coil-shaped) preheating conductor tube 3 arranged around and a helical (coil-shaped) overheating conductor tube 4 which is a secondary coil through which an induced current flows and is arranged around the closed magnetic circuit core 2 and Since the three leg iron cores 21, 22 and 23 are positioned at the vertices of the triangle, the three superheated steam generating units 100A, 100B and 100C are also positioned at the vertices of the triangle (see FIG. 3).

予熱導体管３は、閉磁路鉄心２の周りに同心状に配置された第１予熱導体管３１、第２予熱導体管３２及び第３予熱導体管３３を有している。 The preheating conductor tube 3 has a first preheating conductor tube 31 , a second preheating conductor tube 32 , and a third preheating conductor tube 33 concentrically arranged around the closed magnetic circuit core 2 .

第１～第３予熱導体管３１、３２、３３は、それぞれ単層巻きであり、径方向最外側に第１予熱導体管３１が配置され、径方向最内側に第２予熱導体管３２が配置され、第１予熱導体管３１及び第２予熱導体管３２の間の第３予熱導体管３３が配置されている。 The first to third preheating conductor pipes 31, 32, and 33 are each wound in a single layer, with the first preheating conductor pipe 31 arranged radially outermost and the second preheating conductor pipe 32 arranged radially innermost. A third preheating conductor tube 33 is arranged between the first preheating conductor tube 31 and the second preheating conductor tube 32 .

第１予熱導体管３１の軸方向一端部に導入ポートＰ１が接続されており、第１予熱導体管３１の軸方向他端部が第２予熱導体管３２の軸方向他端部に接続されている。また、第２予熱導体管３２の軸方向一端部が第３予熱導体管３３の軸方向一端部に接続されている。なお、導入ポートＰ１又はその近傍には、第１予熱導体管３１に流入する水の流量を調整するための流量調整バルブ５が設けられている。 The introduction port P1 is connected to one axial end of the first preheating conductor pipe 31, and the other axial end of the first preheating conductor pipe 31 is connected to the other axial end of the second preheating conductor pipe 32. there is One axial end of the second preheating conductor pipe 32 is connected to one axial end of the third preheating conductor pipe 33 . A flow control valve 5 for adjusting the flow rate of water flowing into the first preheating conductor pipe 31 is provided at or near the introduction port P1.

さらに、交流電圧を印加する交流電源（不図示）は、図５及び図６に示すように、第１予熱導体管３１の軸方向一端部に接続された導入ポートＰ１又はその近傍に設けられた給電端子６１と、第３予熱導体管３３の軸方向他端部に設けられた給電端子６２に接続されている。具体的には、第１の過熱水蒸気生成ユニット１００Ａの第１予熱導体管３１に設けられたＵ端子及び第３予熱導体管３３に設けられたＶ端子に１相の交流電圧が印加され、第２の過熱水蒸気生成ユニット１００Ｂの第１予熱導体管３１に設けられたＶ端子及び第３予熱導体管３３に設けられたＷ端子に１相の交流電圧を印加され、第３の過熱水蒸気生成ユニット１００Ｃの第１予熱導体管３１に設けられたＷ端子及び第３予熱導体管３３に設けられたＵ端子に１相の交流電圧が印加される。 Furthermore, an AC power supply (not shown) that applies an AC voltage is provided at or near an introduction port P1 connected to one axial end of the first preheating conductor tube 31, as shown in FIGS. It is connected to a power supply terminal 61 and a power supply terminal 62 provided at the other axial end of the third preheating conductor tube 33 . Specifically, a one-phase AC voltage is applied to the U terminal provided on the first preheating conductor tube 31 and the V terminal provided on the third preheating conductor tube 33 of the first superheated steam generation unit 100A, A one-phase AC voltage is applied to the V terminal provided on the first preheating conductor tube 31 and the W terminal provided on the third preheating conductor tube 33 of the superheated steam generation unit 100B of No. 2, and the third superheated steam generation unit A one-phase AC voltage is applied to the W terminal provided on the first preheating conductor tube 31 of 100 C and the U terminal provided on the third preheating conductor tube 33 .

そして、第１～第３予熱導体管３１、３２、３３は、図２に示すように、各導体管３１、３２、３３の巻回部分が互いに短絡しないように構成されている。なお、巻回部分とは螺旋１巻き部分のことである。具体的には、各導体管３１～３３は、各巻回部分の外側周面が互いに接触しないように隙間を持って巻回されることにより、各導体管３１～３３の巻回部分が互いに短絡しないように構成されている。その他、各導体管３１～３３は、その外側周面に絶縁体（不図示）が巻かれる等の絶縁処理が施されることにより、各導体管３１～３３の巻回部分が互いに短絡しないように構成されていても良い。 As shown in FIG. 2, the first to third preheating conductor tubes 31, 32, 33 are configured so that the wound portions of the respective conductor tubes 31, 32, 33 are not short-circuited with each other. In addition, a winding part is a spiral 1 winding part. Specifically, the conductor tubes 31 to 33 are wound with gaps so that the outer peripheral surfaces of the respective winding parts do not contact each other, so that the winding parts of the conductor tubes 31 to 33 are short-circuited with each other. configured not to. In addition, each of the conductor tubes 31 to 33 is subjected to an insulating treatment such as being wrapped with an insulator (not shown) on its outer peripheral surface, so that the wound portions of the conductor tubes 31 to 33 are not short-circuited with each other. may be configured to

過熱導体管４は、図７に示すように、互いに逆向きに螺旋状に巻回された第１過熱導体管４１及び第２過熱導体管４２と、第１過熱導体管４１及び第２過熱導体管４２の軸方向一端部同士及び軸方向他端部同士を流体的に接続するとともにそれらを短絡接続する接続管要素４３、４４とを有している。第１過熱導体管４１及び第２過熱導体管４２は、軸方向から見て径方向に隙間が形成されている。 As shown in FIG. 7, the overheating conductor tube 4 includes a first overheating conductor tube 41 and a second overheating conductor tube 42 spirally wound in opposite directions, and a first overheating conductor tube 41 and a second overheating conductor It has connection pipe elements 43 and 44 that fluidly connect one axial end portions of the pipe 42 and the other axial end portions thereof and short-circuit them. A gap is formed between the first overheating conductor pipe 41 and the second overheating conductor pipe 42 in the radial direction when viewed from the axial direction.

第１過熱導体管４１及び第２過熱導体管４２は、第１予熱導体管３１及び第２予熱導体管３２の間に配置されており、第１過熱導体管４１及び第２過熱導体管４２の間には、第３予熱導体管３３が配置されている。また、過熱導体管４の軸方向他端部が第３予熱導体管３３の軸方向他端部に接続されており、過熱導体管４の軸方向一端部に導出ポートＰ２が設けられている。 The first overheating conductor pipe 41 and the second overheating conductor pipe 42 are arranged between the first preheating conductor pipe 31 and the second preheating conductor pipe 32, and the first overheating conductor pipe 41 and the second overheating conductor pipe 42 A third preheating conductor pipe 33 is arranged between them. The other axial end of the superheating conductor tube 4 is connected to the other axial end of the third preheating conductor tube 33 , and the one axial end of the overheating conductor tube 4 is provided with a lead-out port P2.

本実施形態では、図１及び図５に示すように、３つの過熱水蒸気生成ユニット１００Ａ、１００Ｂ、１００Ｃそれぞれの導出ポートＰ２は、１つの過熱水蒸気吐出ポートＰ３に接続されており、各過熱水蒸気生成ユニット１００Ａ、１００Ｂ、１００Ｃで生成された過熱水蒸気が合流して吐出されるように構成されている。なお、過熱水蒸気吐出ポートＰ３又はその近傍には、過熱水蒸気の温度を制御するための温度センサ７が設けられている。 In this embodiment, as shown in FIGS. 1 and 5, the outlet port P2 of each of the three superheated steam generation units 100A, 100B, and 100C is connected to one superheated steam discharge port P3. It is configured such that the superheated steam generated in the units 100A, 100B, and 100C are combined and discharged. A temperature sensor 7 for controlling the temperature of the superheated steam is provided at or near the superheated steam discharge port P3.

このような構成により、各導体管３１～３３、４１、４２は、径方向内側から第２予熱導体管３２、第２過熱導体管４２、第３予熱導体管３３、第１過熱導体管４１及び第１予熱導体管３１の順に配置されるとともに、第１予熱導体管３１、第２予熱導体管３２、第３予熱導体管３３及び過熱導体管４の順に直列に接続されることになる。 With such a configuration, the conductor tubes 31 to 33, 41, and 42 are arranged from the inner side in the radial direction: the second preheating conductor tube 32, the second overheating conductor tube 42, the third preheating conductor tube 33, the first overheating conductor tube 41, and the While being arranged in order of the 1st preheating conductor pipe 31, the 1st preheating conductor pipe 31, the 2nd preheating conductor pipe 32, the 3rd preheating conductor pipe 33, and the superheating conductor pipe 4 are connected in series in order.

また、一方の接続管要素４３には、導出ポートＰ２が設けられており、他方の接続管要素４４には、第３予熱導体管３３の軸方向他端部が接続される。この構成により、他方の接続管要素４４から流入した流体は、接続管要素４４により第１過熱導体管４１及び第２過熱導体管４２に分岐して流れ、第１過熱導体管４１及び第２過熱導体管４２を流れた流体は、接続管要素４３で合流して導出ポートＰ２から流出する。 One connection pipe element 43 is provided with an outlet port P2, and the other connection pipe element 44 is connected to the other axial end of the third preheating conductor pipe 33 . With this configuration, the fluid flowing from the other connecting pipe element 44 is branched by the connecting pipe element 44 into the first overheating conductor pipe 41 and the second overheating conductor pipe 42, and flows into the first overheating conductor pipe 41 and the second overheating conductor pipe 41. The fluid that has flowed through the conductor tube 42 merges at the connecting tube element 43 and flows out from the outlet port P2.

また、このように接続した過熱導体管４は、第１過熱導体管４１及び第２過熱導体管４２が接続管要素４３、４４により電気的に並列接続される構成である。そして、一次コイルである第１～第３予熱導体管３１、３２、３３により生じる磁束によって、第１過熱導体管４１及び第２過熱導体管４２により閉回路が形成されて短絡電流が流れる。つまり、第１過熱導体管４１には、軸方向一端部から軸方向他端部に向かって短絡電流が流れ、第２過熱導体管４２には、軸方向他端部から軸方向一端部に向かって短絡電流が流れる。 Moreover, the superheating conductor tube 4 connected in this way has a configuration in which the first overheating conductor tube 41 and the second overheating conductor tube 42 are electrically connected in parallel by the connecting tube elements 43 and 44 . A closed circuit is formed by the first overheating conductor tube 41 and the second overheating conductor tube 42 due to the magnetic flux generated by the first to third preheating conductor tubes 31, 32, and 33, which are primary coils, and a short-circuit current flows. That is, a short-circuit current flows through the first overheating conductor tube 41 from one axial end toward the other axial end, and a short-circuit current flows through the second overheating conductor tube 42 from the other axial end toward the one axial end. short-circuit current flows.

また、本実施形態の各過熱水蒸気生成ユニット１００Ａ、１００Ｂ、１００Ｃでは、図１～図３に示すように、第１予熱導体管３１と第１過熱導体管４１との間、第１過熱導体管４１と第３予熱導体管３３との間、第３予熱導体管３３と第２過熱導体管４２との間、及び、第２過熱導体管４２と第２予熱導体管３２との間に、断熱材８が充填されている。この断熱材８は、各予熱導体管３１～３３の巻回部分間の隙間にも充填されており、各過熱導体管４１、４２の巻回部分間の隙間にも充填される。本実施形態では、第１予熱導体管３１の外周にケーシング９が設けられており、第１予熱導体管３１とケーシング９との間に断熱材８が設けられている。その他、閉磁路鉄心２の脚鉄心２１～２３と第２予熱導体管３２との間に断熱材８を充填しても良い。 Further, in each of the superheated steam generating units 100A, 100B, and 100C of the present embodiment, as shown in FIGS. 1 to 3, between the first preheating conductor pipe 31 and the first overheating conductor pipe 41, 41 and the third preheating conductor tube 33, between the third preheating conductor tube 33 and the second overheating conductor tube 42, and between the second overheating conductor tube 42 and the second preheating conductor tube 32. Material 8 is filled. The heat insulating material 8 is also filled in the gaps between the wound portions of the preheating conductor tubes 31 to 33 and also in the gaps between the wound portions of the overheating conductor tubes 41 and 42 . In this embodiment, the casing 9 is provided around the outer periphery of the first preheating conductor pipe 31 , and the heat insulating material 8 is provided between the first preheating conductor pipe 31 and the casing 9 . Alternatively, a heat insulating material 8 may be filled between the leg cores 21 to 23 of the closed magnetic circuit core 2 and the second preheating conductor pipe 32 .

このように構成した本実施形態の過熱水蒸気生成装置１００において、各過熱水蒸気生成ユニット１００Ａ、１００Ｂ、１００Ｃに互いに異なる相の交流電圧を印加すると、各過熱水蒸気生成ユニットにおいて、第１～第３予熱導体管３１、３２、３３に交流電流が流れて脚鉄心２１～２３に磁束が流れる。当該磁束によって第１過熱導体管４１、第２過熱導体管４２及び接続管要素４３、４４に短絡電流が流れて、過熱導体管４がジュール発熱する。また、第１～第３予熱導体管３１、３２、３３は、交流電圧が印加されることで通電によりジュール発熱するとともに、過熱導体管４からの伝熱により加熱される。 In the superheated steam generator 100 of the present embodiment configured in this way, when AC voltages of different phases are applied to each of the superheated steam generating units 100A, 100B, and 100C, in each superheated steam generating unit, the first to third preheating Alternating currents flow through the conductor tubes 31, 32, and 33, and magnetic flux flows through the leg iron cores 21-23. The magnetic flux causes a short-circuit current to flow through the first overheating conductor tube 41, the second overheating conductor tube 42, and the connecting tube elements 43 and 44, and the overheating conductor tube 4 generates Joule heat. Also, the first to third preheating conductor tubes 31 , 32 , 33 are heated by heat transfer from the superheating conductor tube 4 as well as Joule heat due to energization due to the application of AC voltage.

これにより、図５及び図６に示すように、第１予熱導体管３１の導入ポートＰ１から導入された水は、第１～第３予熱導体管３１、３２、３３を流れることにより、第１～第３予熱導体管３１、３２、３３により加熱されて高温の水又は飽和水蒸気となる。その後、第３予熱導体管３３から過熱導体管４に流入した高温の水又は飽和水蒸気は、過熱導体管４により加熱されて過熱水蒸気となり、導出ポートＰ２から導出され、その後合流して、過熱水蒸気吐出ポートＰ３から吐出される。 As a result, as shown in FIGS. 5 and 6, water introduced from the introduction port P1 of the first preheating conductor pipe 31 flows through the first to third preheating conductor pipes 31, 32, and 33, thereby .about.the third preheating conductor pipes 31, 32, 33 heat to become high-temperature water or saturated steam. After that, the high-temperature water or saturated steam that has flowed from the third preheating conductor pipe 33 into the superheating conductor pipe 4 is heated by the overheating conductor pipe 4 to become superheated steam, discharged from the outlet port P2, and then merged to form superheated steam. It is discharged from the discharge port P3.

＜２．本実施形態の効果＞
このように構成した過熱水蒸気生成装置１００によれば、３つの過熱水蒸気生成ユニット１００Ａ、１００Ｂ、１００Ｃに互いに異なる相の交流電圧を印加して過熱水蒸気を生成するので、三相交流電源を用いた過熱水蒸気生成装置１００において過熱水蒸気の生成能力を向上させることができる。 <2. Effect of the present embodiment>
According to the superheated steam generator 100 configured in this way, superheated steam is generated by applying AC voltages of mutually different phases to the three superheated steam generating units 100A, 100B, and 100C, so a three-phase AC power supply is used. The ability to generate superheated steam in the superheated steam generator 100 can be improved.

そして、一次コイルとして第１予熱導体管３１及び第２予熱導体管３２を用いているとともに、当該第１予熱導体管３１及び第２予熱導体管３２の間に二次コイルである過熱導体管４を設けているので、第１予熱導体管３１及び第２予熱導体管３２は通電加熱されるとともに、過熱導体管４の放熱を利用して加熱されるので、過熱導体管４からの装置外部への放熱を低減でき、熱効率を上げることができる。 The first preheating conductor tube 31 and the second preheating conductor tube 32 are used as the primary coil, and the overheating conductor tube 4 as the secondary coil is placed between the first preheating conductor tube 31 and the second preheating conductor tube 32. is provided, the first preheating conductor tube 31 and the second preheating conductor tube 32 are electrically heated and heated by utilizing the heat radiation of the overheating conductor tube 4, so that the heat from the overheating conductor tube 4 to the outside of the device heat dissipation can be reduced, and thermal efficiency can be increased.

特に、本発明では、一次コイルとして第３予熱導体管３３を有しており、当該第３予熱導体管３３を過熱導体管４を構成する第１過熱導体管４１及び第２過熱導体管４２の間に設けているので、第１過熱導体管４１及び第２過熱導体管４２の間への放熱を有効活用して加熱され、熱効率をより一層上げることができる。 In particular, in the present invention, the third preheating conductor tube 33 is provided as the primary coil, and the third preheating conductor tube 33 is the first overheating conductor tube 41 and the second overheating conductor tube 42 that constitute the overheating conductor tube 4. Since it is provided between the first overheating conductor pipe 41 and the second overheating conductor pipe 42, it is heated by effectively utilizing heat radiation between the first overheating conductor pipe 41 and the second overheating conductor pipe 42, and the thermal efficiency can be further increased.

ここで、一次コイルを形成する第１予熱導体管３１、第２予熱導体管３２及び第３予熱導体管３３は、それぞれの巻数、導体管の通電断面積、導体管の通流孔径の設定により、発熱比や流体への熱伝達面積比、流体の流速比を調整することができる。 Here, the first preheating conductor tube 31, the second preheating conductor tube 32, and the third preheating conductor tube 33 forming the primary coil are set by setting the number of turns, the current-carrying cross-sectional area of the conductor tube, and the flow hole diameter of the conductor tube. , the heat generation ratio, the heat transfer area ratio to the fluid, and the flow velocity ratio of the fluid can be adjusted.

また、第１予熱導体管３１、第２予熱導体管３２、第３予熱導体管３３、過熱導体管４の順に直列に接続されており、第１予熱導体管３１に設けられた導入ポートＰ１から水又は水蒸気を導入して、第２予熱導体管３２及び第３予熱導体管３３を介して、過熱導体管４に設けられた導出ポートＰ２から過熱水蒸気を導出するので、過熱水蒸気生成装置１００の簡略化及び小型化することができる。 In addition, the first preheating conductor pipe 31, the second preheating conductor pipe 32, the third preheating conductor pipe 33, and the overheating conductor pipe 4 are connected in series in this order. Water or steam is introduced, and the superheated steam is led out from the lead-out port P2 provided in the superheating conductor pipe 4 via the second preheating conductor pipe 32 and the third preheating conductor pipe 33, so that the superheated steam generator 100 It can be simplified and miniaturized.

さらに、過熱導体管４を第１過熱導体管４１と第２過熱導体管４２と接続管要素４３、４４とから構成しているので、導体管とは別に電気接続部材を設ける必要が無く、導体管自体の構成により短絡回路を形成することができる。また、接続管要素４３、４４が各過熱導体管４１、４２の軸方向一端部同士を接続し、軸方向他端部同士を接続する構成であり、短絡回路を構成するための接続構造を簡単にすることができる。また、過熱導体管４が第１過熱導体管４１及び第２過熱導体管４２を有するので、流体との接触面積（熱交換面積）を大きくすることができ、流体の加熱効率を向上することができる。 Furthermore, since the superheating conductor tube 4 is composed of the first overheating conductor tube 41, the second overheating conductor tube 42, and the connection tube elements 43 and 44, there is no need to provide an electrical connection member separately from the conductor tube. A short circuit can be formed by the configuration of the tube itself. In addition, the connection pipe elements 43 and 44 connect one axial end portions of the superheating conductor pipes 41 and 42 to each other and connect the other axial end portions to each other, so that the connection structure for forming a short circuit can be simplified. can be In addition, since the superheating conductor tube 4 has the first overheating conductor tube 41 and the second overheating conductor tube 42, the contact area (heat exchange area) with the fluid can be increased, and the heating efficiency of the fluid can be improved. can.

過熱導体管４を複数回巻きの二次コイルとすることで励磁電流を小さくするとともに漏れインピーダンスを減少できるので、閉磁路鉄心２の断面積を小さくして鉄心の使用量を少なくし、鉄損を低減でき熱効率を上げることができる。また、Ｙ型のヨーク鉄心２４、２５により３つの過熱水蒸気生成ユニット１００Ａ～１００Ｃを組み合わせて過熱水蒸気生成装置１００を構成しているので、三相電流をバランスさせながら、過熱水蒸気生成容量の大きな装置が実現できる。 By making the superheating conductor tube 4 a secondary coil with multiple turns, the excitation current can be reduced and the leakage impedance can be reduced. can be reduced and the thermal efficiency can be increased. In addition, since the superheated steam generating device 100 is configured by combining the three superheated steam generating units 100A to 100C with the Y-shaped yoke iron cores 24 and 25, the three-phase current is balanced, and the device has a large superheated steam generating capacity. can be realized.

＜３．本発明の変形実施形態＞
なお、本発明は前記実施形態に限られるものではない。
例えば、前記実施形態では、第１～第３予熱導体管３１、３２、３３がそれぞれ単層巻きのものであったが、第１～第３予熱導体管３１、３２、３３の少なくとも１つが、二層巻き以上のものであっても良い。 <3. Modified Embodiment of the Present Invention>
It should be noted that the present invention is not limited to the above embodiments.
For example, in the above-described embodiment, each of the first to third preheating conductor tubes 31, 32, 33 is a single-layer wound one, but at least one of the first to third preheating conductor tubes 31, 32, 33 is It may be wound in two or more layers.

また、前記実施形態では、第１過熱導体管４１及び第２過熱導体管４２は巻回方向が互いに逆向きであったが、第１過熱導体管４１及び第２過熱導体管４２の巻回方向が同じ向きであっても良い。この場合、第１過熱導体管４１の軸方向一端部と第２過熱導体管４２の軸方向他端部とが接続管要素４３により接続されており、第１過熱導体管４１の軸方向他端部と第２過熱導体管４２の軸方向一端部とが接続管要素４４により接続された構成とする。 In the above-described embodiment, the winding directions of the first overheating conductor tube 41 and the second overheating conductor tube 42 are opposite to each other. may be in the same direction. In this case, one axial end portion of the first overheating conductor pipe 41 and the other axial end portion of the second overheating conductor pipe 42 are connected by a connection pipe element 43, and the other axial end portion of the first overheating conductor pipe 41 and one axial end of the second overheating conductor pipe 42 are connected by a connection pipe element 44 .

さらに、前記実施形態の過熱導体管４は、２重管構造をなすものであったが、４重管又はそれ以上の偶数重の管要素を有するものであっても良い。この場合、２つの管要素毎にそれぞれ接続管要素で接続する。例えば、前記実施形態の過熱導体管４を同心円状に複数配置した構成とすることが考えられる。 Furthermore, although the superheating conductor tube 4 in the above embodiment has a double tube structure, it may have a quadruple tube or an even number of tube elements. In this case, every two pipe elements are connected by connecting pipe elements. For example, a configuration in which a plurality of the superheating conductor tubes 4 of the above embodiment are arranged concentrically is conceivable.

前記実施形態では、３つの導出ポートＰ２を１つの過熱水蒸気吐出ポートＰ３に接続しているが、過熱水蒸気吐出ポートＰ３を設けることなく、３つの導出ポートＰ２から独立して過熱水蒸気を吐出するようにしても良い。 In the above embodiment, the three outlet ports P2 are connected to one superheated steam discharge port P3. You can do it.

前記実施形態では、流体として水又は水蒸気を加熱する装置について説明したが、その他の液体又は気体を加熱するものであっても良い。 In the above embodiments, the device for heating water or steam as a fluid has been described, but the device for heating other liquids or gases may also be used.

その他、本発明は前記実施形態に限られず、その趣旨を逸脱しない範囲で種々の変形が可能であるのは言うまでもない。 In addition, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications are possible without departing from the spirit of the present invention.

１００・・・過熱水蒸気生成装置
１００Ａ・・・第１の過熱水蒸気生成ユニット
１００Ｂ・・・第２の過熱水蒸気生成ユニット
１００Ｃ・・・第３の過熱水蒸気生成ユニット
２・・・閉磁路鉄心
２１、２２、２３・・・脚鉄心
３・・・予熱導体管
３１・・・第１予熱導体管
３２・・・第２予熱導体管
３３・・・第３予熱導体管
４・・・過熱導体管
４１・・・第１過熱導体管
４２・・・第２過熱導体管
４３、４４・・・接続管要素
Ｐ１・・・導入ポート
Ｐ２・・・導出ポート
８・・・断熱材 100... Superheated steam generator 100A... First superheated steam generating unit 100B... Second superheated steam generating unit 100C... Third superheated steam generating unit 2... Closed magnetic circuit core 21, Reference Signs 22, 23 Leg iron core 3 Preheating conductor tube 31 First preheating conductor tube 32 Second preheating conductor tube 33 Third preheating conductor tube 4 Superheating conductor tube 41 ... First superheating conductor tube 42 ... Second overheating conductor tube 43, 44 ... Connection pipe element P1 ... Introduction port P2 ... Outlet port 8 ... Heat insulating material

Claims

導体管を電磁誘導により発熱させて当該導体管を流れる水を加熱して過熱水蒸気を生成する過熱水蒸気生成装置であって、
三相の閉磁路鉄心における３つの脚鉄心を用いて３つの過熱水蒸気生成ユニットを構成し、当該３つの過熱水蒸気生成ユニットに互いに異なる相の交流電圧を印加して過熱水蒸気を生成するものであり、
前記各過熱水蒸気生成ユニットは、
１相の交流電圧が印加される一次コイルであり、前記閉磁路鉄心の周りに配置された螺旋状の予熱導体管と、
誘導電流が流れる二次コイルであり、前記閉磁路鉄心の周りに配置された螺旋状の過熱導体管とを備え、
前記予熱導体管は、前記閉磁路鉄心の周りに同心状に配置された第１予熱導体管、第２予熱導体管及び第３予熱導体管を有し、
前記過熱導体管は、前記閉磁路鉄心の周りに同心状に配置されるとともに互いに逆向きに螺旋状に巻回された第１過熱導体管及び第２過熱導体管と、前記第１過熱導体管及び前記第２過熱導体管の軸方向一端部同士及び軸方向他端部同士を流体的に接続するとともにそれらを短絡接続する接続管要素とを有し、
前記各導体管は径方向内側から前記第２予熱導体管、前記第２過熱導体管、前記第３予熱導体管、前記第１過熱導体管及び前記第１予熱導体管の順に配置されるとともに、前記第１予熱導体管、前記第２予熱導体管、前記第３予熱導体管、前記過熱導体管の順に直列に接続されており、
前記第１予熱導体管に設けられた導入ポートから水又は水蒸気を導入して、前記第２予熱導体管及び前記第３予熱導体管を介して、前記過熱導体管に設けられた導出ポートから過熱水蒸気を導出する、過熱水蒸気生成装置。 A superheated steam generator for generating superheated steam by generating heat in a conductor tube by electromagnetic induction to heat water flowing through the conductor tube,
Three superheated steam generating units are configured using three leg cores in a three-phase closed magnetic circuit core, and alternating voltages of different phases are applied to the three superheated steam generating units to generate superheated steam. ,
Each superheated steam generation unit is
A helical preheating conductor tube, which is a primary coil to which a single-phase AC voltage is applied, and which is arranged around the closed magnetic circuit core;
A secondary coil through which an induced current flows, and a helical overheating conductor tube arranged around the closed magnetic circuit core,
The preheating conductor tube has a first preheating conductor tube, a second preheating conductor tube, and a third preheating conductor tube concentrically arranged around the closed magnetic circuit core,
The overheating conductor tube includes a first overheating conductor tube and a second overheating conductor tube that are arranged concentrically around the closed magnetic circuit core and spirally wound in opposite directions to each other, and the first overheating conductor tube. and a connection pipe element that fluidly connects one axial end and the other axial end of the second overheating conductor pipe and short-circuits them,
The conductor tubes are arranged in the order of the second preheating conductor tube, the second overheating conductor tube, the third preheating conductor tube, the first overheating conductor tube, and the first preheating conductor tube from the radially inner side, The first preheating conductor tube, the second preheating conductor tube, the third preheating conductor tube, and the overheating conductor tube are connected in series in this order,
Water or steam is introduced from an introduction port provided in the first preheating conductor pipe, and superheated from an outlet port provided in the superheating conductor pipe via the second preheating conductor pipe and the third preheating conductor pipe. A superheated steam generator for deriving steam.

前記過熱導体管の軸方向一端部に前記導出ポートが形成されており、
前記第３予熱導体管は、前記導出ポートと同じ側の軸方向一端部から水又は水蒸気が導入される、請求項１に記載の過熱水蒸気生成装置。 The lead-out port is formed at one axial end of the overheating conductor tube,
2. The superheated steam generator according to claim 1, wherein the third preheating conductor pipe is introduced with water or steam from one axial end on the same side as the lead-out port.

前記導入ポートは、前記第１予熱導体管において前記導出ポートと同じ側の軸方向一端部に形成されている、請求項１又は２に記載の過熱水蒸気生成装置。 3. The superheated steam generator according to claim 1, wherein the introduction port is formed at one axial end of the first preheating conductor pipe on the same side as the outlet port.

前記第１予熱導体管と前記第１過熱導体管との間、前記第１過熱導体管と前記第３予熱導体管との間、前記第３予熱導体管と前記第２過熱導体管との間、及び、前記第２過熱導体管と前記第２予熱導体管との間に断熱材が充填されている、請求項１乃至３の何れか一項に記載の過熱水蒸気生成装置。 Between the first preheating conductor tube and the first overheating conductor tube, between the first overheating conductor tube and the third preheating conductor tube, and between the third preheating conductor tube and the second overheating conductor tube 4. The superheated steam generator according to any one of claims 1 to 3, wherein a heat insulating material is filled between the second overheating conductor pipe and the second preheating conductor pipe.

前記第１予熱導体管、前記第２予熱導体管及び前記第３予熱導体管は単層巻きであり、
前記第１予熱導体管の軸方向一端部に前記導入ポートが形成されており、
前記第１予熱導体管の軸方向他端部が前記第２予熱導体管の軸方向他端部に接続されており、
前記第２予熱導体管の軸方向一端部が前記第３予熱導体管の軸方向一端部に接続されており、
前記交流電圧を印加する交流電源は、前記第１予熱導体管の軸方向一端部及び前記第３予熱導体管の軸方向他端部に接続されている、請求項１乃至４の何れか一項に記載の過熱水蒸気生成装置。 The first preheating conductor tube, the second preheating conductor tube and the third preheating conductor tube are single-layer wound,
The introduction port is formed at one axial end of the first preheating conductor pipe,
The other axial end of the first preheating conductor tube is connected to the other axial end of the second preheating conductor tube,
One axial end of the second preheating conductor tube is connected to one axial end of the third preheating conductor tube,
5. The AC power supply for applying the AC voltage is connected to one axial end of the first preheating conductor tube and the other axial end of the third preheating conductor tube. The superheated steam generator according to 1.