JP2023162579A - Superheated steam generation device - Google Patents

Abstract

To provide a superheated steam generation device using a three-phase AC power supply that effectively uses radiation of heat from a superheated conductor tube to improve thermal efficiency and reduces the influence that the superheated conductor tube is cooled by water or steam introduced from an introduction port.SOLUTION: A pre-heating conductor tube 3 has a first pre-heating conductor tube 31 and a second pre-heating conductor tube 32 that are arranged concentrically around a closed magnetic circuit iron core 2. The conductor tubes 31, 32, 4 are arranged in the order of the second pre-heating conductor tube 32, a superheated conductor tube 4, and the first pre-heating conductor tube 31 from the inside in a radial direction, and are connected in series in the order of the first pre-heating conductor tube 31, the second pre-heating conductor tube 32, and the superheated conductor tube 4. The second pre-heating conductor tube 32 has a spiral short circuit part 32X short-circuited in an axial direction. A superheated steam generation device introduces water or steam from an introduction port P1 provided in the first pre-heating conductor tube 31, and derives superheated steam from a derivation port P2 provided in the superheated conductor tube 4 through the second pre-heating conductor tube 32.SELECTED DRAWING: Figure 1

Description

本発明は、３相交流電源を用いた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 generation device using a three-phase AC power source.

従来の３相交流電源を用いた過熱水蒸気生成装置としては、特許文献１に示すように、３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が考えられている。 As shown in Patent Document 1, as a conventional superheated steam generation device using a three-phase AC power supply, three leg cores of a three-phase closed magnetic circuit core are used to configure three superheated steam generation units. It has been considered to generate superheated steam by applying alternating current voltages of different phases to two superheated steam generation units.

そして、各過熱水蒸気生成ユニットは、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。具体的には、水が導入される第１導体管の導入ポートが軸方向一端側に設けられ、過熱水蒸気が導出される第３導体管の導出ポートが軸方向他端側に設けられている。また、第２導体管と第３導体管とが軸方向一端側において互いに接続されている。 Each superheated steam generation unit uses a first conductor pipe and a second conductor pipe as a primary coil, and a third conductor pipe (superheated conductor pipe) serving as a secondary coil is provided between the first conductor pipe and the second conductor pipe. ) is being considered. Specifically, the introduction port of the first conductor pipe through which water is introduced is provided at one end in the axial direction, and the outlet port of the third conductor pipe through which superheated steam is led out is provided at the other end in the axial direction. . Further, the second conductor tube and the third conductor tube are connected to each other at one end in the axial direction.

この過熱水蒸気生成ユニットでは、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。 In this superheated steam generation unit, the first conductor pipe and the second conductor pipe are electrically heated and heated using the heat radiation of the third conductor pipe, so that the heat radiation from the third conductor pipe to the outside of the device is reduced. can be reduced and thermal efficiency can be increased.

しかしながら、上記の構成では、第３導体管の軸方向一端部が、第１導体管の導入ポートから導入された水によって冷やされるため、第３導体管に流入する予熱された水又は水蒸気が冷やされてしまう。そうすると、過熱水蒸気を所望の温度に過熱するための時間が長くなってしまい、また、水量の変化によって生成される過熱水蒸気の温度は変化してしまうという問題がある。 However, in the above configuration, one axial end of the third conductor tube is cooled by the water introduced from the introduction port of the first conductor tube, so the preheated water or steam flowing into the third conductor tube is cooled. It will be done. This poses a problem in that it takes a long time to heat the superheated steam to a desired temperature, and the temperature of the generated superheated steam changes as the amount of water changes.

特開２０２１－４４２００号公報JP2021-44200A

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、３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、導入ポートから導入された水又は水蒸気により過熱導体管が冷やされる影響を低減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 generation device using a three-phase AC power supply, the heat dissipation of the superheated conductor pipe is effectively utilized to improve thermal efficiency, and the introduction port The main objective is to reduce the effect of cooling the superheated conductor pipe by water or steam introduced from the pipe.

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、３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、交流電圧が印加される一次コイルであり、前記脚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、前記脚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、前記脚鉄心の周りに同心状に配置された第１予熱導体管及び第２予熱導体管を有し、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予熱導体管及び前記過熱導体管の順に直列に接続されており、前記第２予熱導体管は、螺旋状の軸方向に短絡させた短絡部を有しており、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 generation device according to the present invention is a superheated steam generation device that generates superheated steam by generating heat in a conductor tube by electromagnetic induction to heat water flowing through the conductor tube, and includes a three-phase closed magnetic circuit iron core. Three superheated steam generation units are configured using three leg iron cores, and superheated steam is generated by applying alternating current voltages of different phases to the three superheated steam generation units, and each superheated steam generation The unit includes a primary coil to which an alternating current voltage is applied, a spiral preheating conductor tube arranged around the leg core, and a secondary coil through which an induced current flows, arranged around the leg core. a spiral superheating conductor pipe, the preheating conductor pipe having a first preheating conductor pipe and a second preheating conductor pipe arranged concentrically around the leg core, each of the conductor pipes radially The second preheating conductor pipe, the overheating conductor pipe, and the first preheating conductor pipe are arranged in this order from the inside, and the first preheating conductor pipe, the second preheating conductor pipe, and the overheating conductor pipe are connected in series in this order. The second preheating conductor pipe has a spiral short-circuited part in the axial direction, and water or steam is introduced from an introduction port provided in the first preheating conductor pipe, The superheated steam is led out from a lead-out port provided in the overheating conductor pipe via the second 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、３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、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、第２予熱導体管が、螺旋状の軸方向に短絡させた短絡部を有しているので、過熱導体管に流入する予熱された水又は飽和水蒸気を短絡電流によるジュール発熱により加熱することができる。その結果、導入ポートから導入された水又は水蒸気により過熱導体管が冷やされる影響を低減して、過熱水蒸気を所望の温度に加熱するための時間を短縮することができる。また、水量の変化による過熱水蒸気の温度変化に対応して、水量の変化に関わらず過熱水蒸気を所望の温度に加熱することができる。
ここで、一次コイルを形成する第１予熱導体管及び第２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予熱導体管及び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。ここで、過熱導体管に流入する水又は飽和水蒸気の温度を短絡部により高温にしているので、過熱導体管の長さを短くすることが可能となり、これによっても過熱水蒸気生成装置の小型化が可能となる。 According to such a superheated steam generation device, superheated steam is generated by applying alternating current voltages of different phases to the three superheated steam generation units. Generating ability can be improved.
Since the first preheating conductor pipe and the second preheating conductor pipe are used as the primary coil, and the superheating conductor pipe serving as the secondary coil is provided between the first preheating conductor pipe and the second preheating conductor pipe, The first preheating conductor tube and the second preheating conductor tube are electrically heated and heated using the heat radiation of the overheating conductor tube, so that heat radiation from the overheating conductor tube to the outside of the device can be reduced and thermal efficiency can be increased.
Particularly, in the present invention, since the second preheating conductor pipe has a short-circuited portion short-circuited in the spiral axial direction, the preheated water or saturated steam flowing into the superheating conductor pipe is heated by Joule heat generation due to the short circuit current. It can be heated by As a result, the influence of cooling the superheated conductor pipe by water or steam introduced from the introduction port can be reduced, and the time required to heat the superheated steam to a desired temperature can be shortened. Further, in response to a change in the temperature of the superheated steam due to a change in the amount of water, the superheated steam can be heated to a desired temperature regardless of the change in the amount of water.
Here, the first preheating conductor tube and the second preheating conductor tube that form the primary coil have their heat generation ratio and heat transfer to the fluid determined by setting the respective number of turns, current carrying cross-sectional area of the conductor tube, and communication hole diameter of the conductor tube. The area ratio and fluid flow rate ratio can be adjusted.
In addition, the first preheating conductor pipe, the second 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 to form the second preheating conductor pipe. Since the superheated steam is led out from the outlet port provided in the superheated conductor pipe through the pipe, the superheated steam generation device can be simplified and downsized. Here, since the temperature of the water or saturated steam flowing into the superheated conductor pipe is made high by the short-circuit part, it is possible to shorten the length of the superheated conductor pipe, which also makes it possible to downsize the superheated steam generator. It becomes possible.

本発明の効果を顕著にするためには、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設けられており、前記過熱導体管の軸方向他端部に前記導出ポートが設けられていることが望ましい。
この構成であれば、導入ポートと導出ポートとが軸方向において反対側に配置されているので、導出ポートから導出される過熱水蒸気に対する導入ポートから導入される水の温度影響を小さくすることができる。過熱導体管の軸方向一端部は導入ポートから導入された水により冷やされるものの、過熱導体管の軸方向一端部には、短絡部により加熱された水又は飽和水蒸気が導入されるので、過熱時間の短縮が可能となり、水量の変化による過熱水蒸気の温度変化を抑制することができる。 In order to make the effects of the present invention remarkable, the introduction port is provided at one axial end of the first preheating conductor tube, and the outlet port is provided at the other axial end of the superheating conductor tube. It is desirable that
With this configuration, since the introduction port and the outlet port are arranged on opposite sides in the axial direction, it is possible to reduce the influence of the temperature of the water introduced from the introduction port on the superheated steam extracted from the outlet port. . Although one axial end of the superheated conductor pipe is cooled by water introduced from the introduction port, water or saturated steam heated by the short circuit is introduced into the one axial end of the superheated conductor pipe, so the overheating time is This makes it possible to reduce the temperature of the superheated steam due to changes in the amount of water.

前記第２予熱導体管の軸方向一端部及び前記過熱導体管の軸方向一端部が接続されており、前記短絡部は、前記第２予熱導体管において、軸方向一端部側に設けられていることが望ましい。
この構成であれば、第２予熱導体管を流れる水又は飽和水蒸気を過熱導体管の軸方向一端部に流入する直前で短絡部により加熱できるので、短絡部による加熱効果をより顕著にすることができる。 One axial end of the second preheating conductor tube and one axial end of the overheating conductor tube are connected, and the short circuit is provided on the one axial end side of the second preheating conductor tube. This is desirable.
With this configuration, the water or saturated steam flowing through the second preheating conductor tube can be heated by the short circuit immediately before it flows into one axial end of the superheating conductor tube, so that the heating effect by the short circuit can be made more pronounced. can.

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することが望ましい。
この構成であれば、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。 The overheating conductor tube includes a first overheating conductor tube and a second overheating conductor tube, which are arranged concentrically around the closed magnetic circuit iron core and spirally wound in opposite directions to each other, and the first overheating conductor tube. and a connecting pipe element that fluidly connects one axial end of the second overheating conductor pipe and the other axial end of the second overheating conductor pipe and short-circuits them.
With this configuration, there is no need to provide an electrical connection member separately from the conductor tube, and a short circuit can be formed by the configuration of the conductor tube itself. Furthermore, the connecting pipe element is configured to connect one axial end of each pipe element and connect the other axial end of each pipe element to each other, so that the connection structure for forming a short circuit can be simplified.

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、導入ポートから導入された水又は水蒸気により過熱導体管が冷やされる影響を低減することができる。 According to the present invention configured in this way, in a superheated steam generation device using a three-phase AC power supply, the heat radiation of the superheated conductor pipe is effectively utilized to improve thermal efficiency, and the water or steam introduced from the introduction port is The effect of cooling the overheated conductor pipe can be reduced.

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。1 is a cross-sectional view schematically showing the configuration of a superheated steam generation device according to an embodiment of the present invention. 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 radial direction of the superheated steam generating device of the same embodiment. 同実施形態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 the same embodiment. 同実施形態の閉磁路鉄心の構成を示す正面図及びヨーク鉄心を示す平面図である。FIG. 2 is a front view showing the configuration of the closed magnetic circuit core and a plan view showing the yoke core 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 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。 EMBODIMENT OF THE INVENTION Below, one Embodiment of the superheated steam generation apparatus based on this invention is described with reference to 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 generation device 100 according to the present embodiment uses a three-phase AC power source, and generates superheated steam by generating heat in a conductor tube by electromagnetic induction to heat water flowing through the conductor tube. . In addition, the superheated steam generation device 100 may be one that generates superheated steam by heating saturated steam generated externally, for example.

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、３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 generation device 100 includes three superheated steam generation units 100A, 100B using three leg cores 21, 22, and 23 in a three-phase closed magnetic circuit core 2. 100C, and generates superheated steam by applying alternating current voltages of different phases to the three superheated steam generation units 100A, 100B, and 100C.

ここで、３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、平板状の珪素鋼板を積み重ねて円筒状に形成したものである。なお、各脚鉄心２１、２２、２３は、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ものであっても良い。 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 cores 21, 22, and 23 are located at the vertices of a triangle, and the yoke cores 24 and 25 that connect them are Y-shaped. Each of the leg cores 21, 22, and 23 is formed into a cylindrical shape by stacking flat silicon steel plates. Note that each of the leg cores 21, 22, and 23 may be formed into a cylindrical shape by laminating a large number of magnetic steel plates radially, each having a curved portion curved into an involute shape.

各過熱水蒸気生成ユニット１００Ａ、１００Ｂ、１００Ｃは、図１及び図２に示すように、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、脚鉄心２１、２２、２３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、脚鉄心２１、２２、２３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２参照）。 As shown in FIGS. 1 and 2, each of the superheated steam generation units 100A, 100B, and 100C includes leg cores 21, 22, and 23, and a primary coil to which a one-phase AC voltage is applied. , 23, and a secondary coil through which an induced current flows, which is arranged around the leg cores 21, 22, and 23. A superheated conductor pipe 4 is provided. Note that since the three leg cores 21, 22, and 23 are located at the vertices of the triangle, the three superheated steam generation units 100A, 100B, and 100C are also located at the vertices of the triangle (see FIG. 2).

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及び第２予熱導体管３２を有している。これら第１予熱導体管３１及び第２予熱導体管３２は、螺旋状に巻回されている。 The preheating conductor tube 3 includes a first preheating conductor tube 31 and a second preheating conductor tube 32 that are arranged concentrically around the closed magnetic circuit iron core 2 . These first preheating conductor tube 31 and second preheating conductor tube 32 are spirally wound.

第１、第２予熱導体管３１、３２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が配置されている。 The first and second preheating conductor tubes 31 and 32 are each wound in a single layer, with the first preheating conductor tube 31 being disposed on the outermost side in the radial direction, and the second preheating conductor tube 32 being disposed on the innermost side in the radial direction. There is.

第１予熱導体管３１の軸方向一端部に導入ポートＰ１が設けられており、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の軸方向一端部が過熱導体管４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。 An introduction port P1 is provided at one axial end of the first preheating conductor tube 31, and the other axial end of the first preheating conductor tube 31 is connected to the other axial end of the second preheating conductor tube 32. There is. Further, one axial end of the second preheating conductor tube 32 is connected to one axial end of the overheating conductor tube 4 . Note that a flow rate adjustment valve 5 for adjusting the flow rate of water flowing into the first conductor pipe 31 is provided at or near the introduction port P1.

さらに、三相交流電源（不図示）の各相の交流電圧は、第１予熱導体管３１の軸方向一端部に設けられた給電端子６１及び第２予熱導体管３２の軸方向一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２予熱導体管３２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２予熱導体管３２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２予熱導体管３２に設けられたＵ端子に１相の交流電圧が印加される。 Furthermore, the AC voltage of each phase of the three-phase AC power supply (not shown) is supplied to a power supply terminal 61 provided at one axial end of the first preheating conductor tube 31 and a power supply terminal 61 provided at one axial end of the second preheating conductor tube 32. The power supply terminal 62 is connected to the power supply terminal 62 . Specifically, a one-phase AC voltage is applied to the U terminal provided on the first preheating conductor pipe 31 and the V terminal provided on the second preheating conductor pipe 32 of the first superheated steam generation unit 100A, and the A one-phase AC voltage is applied to the V terminal provided on the first preheating conductor pipe 31 and the W terminal provided on the second preheating conductor pipe 32 of the second superheated steam generation unit 100B, and the third superheated steam generation unit 100B A one-phase AC voltage is applied to the W terminal provided on the 100C first preheating conductor tube 31 and the U terminal provided on the second preheating conductor tube 32.

そして、第１予熱導体管３１は、導体管３１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、導体管３１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、導体管３１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、第１予熱導体管３１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、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。 The first preheating conductor tube 31 is configured so that the wound portions of the conductor tube 31 are not short-circuited to each other. Note that the winding portion refers to one spiral turn. Specifically, the conductor tube 31 is wound with a gap so that the outer circumferential surfaces of the respective winding portions do not come into contact with each other, thereby preventing the wound portions of the conductor tube 31 from shorting each other. There is. In addition, the first preheating conductor tube 31 may be configured to be subjected to an insulation treatment such as wrapping an insulator (not shown) around its outer peripheral surface so that the wound portions do not short-circuit with each other. .

また、第２予熱導体管３２は、図１及び図３に示すように、導体管３２の巻回部分が互いに短絡させた短絡部３２Ｘを有している。なお、第２予熱導体管３２において短絡部３２Ｘ以外の部分の巻回部分は、互いに短絡しないように構成されている。その他、第２予熱導体管３２において短絡部３２Ｘ以外の部分の巻回部分は、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互いに短絡しないように構成されていても良い。 Further, the second preheating conductor tube 32 has a short-circuit portion 32X in which the wound portions of the conductor tube 32 are short-circuited to each other, as shown in FIGS. 1 and 3. Note that the winding portions of the second preheating conductor tube 32 other than the short-circuit portion 32X are configured so as not to short-circuit with each other. In addition, the wound portions of the second preheating conductor tube 32 other than the short-circuit portion 32X are insulated by wrapping an insulator (not shown) around the outer circumferential surface of the wound portions to prevent short-circuiting. It may be configured.

具体的に短絡部３２Ｘは、導体管３２の巻回部分を螺旋状の軸方向に短絡させて構成されている。ここで、短絡部３２Ｘは、導体管３２の巻回部分同士を溶接等の接合により接続して構成しても良いし、巻回部分同士に架け渡された電気接続部材をそれぞれの巻回部分に溶接などの接合により接続して構成しても良い。さらに、短絡部３２Ｘは、２以上の巻回部分を短絡させて構成されている。さらに、短絡部３２Ｘは、第２予熱導体管３２において、軸方向一端部側に設けられている。本実施形態では、第２予熱導体管３２の軸方向一端部側の最も外側の巻回部分を含むように短絡部３２Ｘが形成されている。 Specifically, the short-circuit portion 32X is configured by short-circuiting the wound portion of the conductor tube 32 in the spiral axial direction. Here, the short-circuit portion 32X may be constructed by connecting the wound portions of the conductor tube 32 by joining such as welding, or may be configured by connecting the wound portions of the conductor tube 32 to each other by joining the wound portions together, or by connecting the electrical connection member that spans the wound portions to each of the wound portions. The structure may also be configured by connecting them by joining such as welding. Further, the short circuit portion 32X is configured by short circuiting two or more winding portions. Further, the short-circuit portion 32X is provided at one end in the axial direction of the second preheating conductor tube 32. In this embodiment, the short-circuit portion 32X is formed so as to include the outermost winding portion of the second preheating conductor tube 32 at one end in the axial direction.

過熱導体管４は、図５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第１、第２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. 5, the overheating conductor pipe 4 includes a first overheating conductor pipe 41 and a second overheating conductor pipe 42 that are spirally wound in opposite directions, and a first overheating conductor pipe 41 and a second overheating conductor pipe 42. It has first and second connecting pipe elements 43 and 44 that fluidly connect one axial end of the pipe 42 and the other axial end of the pipe 42 and short-circuit them. A gap is formed in 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の間に配置されている。また、過熱導体管４の軸方向一端部が第２予熱導体管３２の軸方向一端部に接続されており、過熱導体管４の軸方向他端部に導出ポート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. Further, one axial end of the overheating conductor tube 4 is connected to one axial end of the second preheating conductor tube 32, and the other axial end of the overheating conductor tube 4 is provided with an outlet port P2.

このような構成により、各導体管３１、３２、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, each of the conductor pipes 31, 32, 41, and 42 is connected to the second preheating conductor pipe 32, the second overheating conductor pipe 42, the first overheating conductor pipe 41, and the first preheating conductor pipe 31 from the inside in the radial direction. The first preheating conductor pipe 31, the second preheating conductor pipe 32, and the overheating conductor pipe 4 are connected in series in this order.

また、第１接続管要素４３には、第２予熱導体管３２の軸方向一端部が接続されており、第２接続管要素４４には、導出ポートＰ２が設けられている。この構成により、第１接続管要素４３から流入した流体は、接続管要素４３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、第２接続管要素４４で合流して導出ポートＰ２から流出する。 Further, one axial end portion of the second preheating conductor tube 32 is connected to the first connecting tube element 43, and the second connecting tube element 44 is provided with an outlet port P2. With this configuration, the fluid flowing in from the first connecting pipe element 43 branches into the first overheating conductor pipe 41 and the second overheating conductor pipe 42 and flows through the first overheating conductor pipe 41 and the second overheating conductor pipe 42. The fluids flowing through the conductor pipe 42 join together at the second connecting pipe element 44 and flow 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２予熱導体管３１、３２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 overheating conductor pipe 4 connected in this way has a configuration in which the first overheating conductor pipe 41 and the second overheating conductor pipe 42 are electrically connected in parallel by connecting pipe 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 and second preheating conductor tubes 31 and 32, which are the primary coils, and a short circuit current flows. In other words, a short-circuit current flows through the first overheating conductor tube 41 from one axial end to the other axial end, and through the second overheating conductor tube 42 from the other axial end toward the other axial end. short circuit current flows.

さらに、本実施形態では、図１及び図３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。 Furthermore, in this embodiment, as shown in FIGS. 1 and 3, 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, and each The superheated steam generated by the steam generation units 100A, 100B, and 100C is configured to merge and be discharged. Note that a temperature sensor 7 for controlling the temperature of the superheated steam is provided at or near the superheated steam discharge port P3.

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及び図２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、３２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の脚鉄心部２１ａ、２２ａ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。 Moreover, in each superheated steam generation unit 100A, 100B, and 100C of this embodiment, as shown in FIGS. 1 and 2, between the first preheating conductor pipe 31 and the first overheating conductor pipe 41, the first superheating conductor pipe 41 and the second overheating conductor pipe 42, and between the second overheating conductor pipe 42 and the second preheating conductor pipe 32, a heat insulating material 8 is filled. This heat insulating material 8 is also filled in the gaps between the wound portions of each of the preheating conductor tubes 31 and 32, and is also filled in the gaps between the wound portions of each of the superheating conductor tubes 41 and 42. In this embodiment, a casing 9 is provided around the outer periphery of the first preheating conductor pipe 31 , and a 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 core portions 21a, 22a 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２予熱導体管３１、３２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２予熱導体管３１、３２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。さらに、第２予熱導体管３２では、短絡部３２Ｘに短絡電流が流れて、第２予熱導体管３２のその他の部分よりも高温に加熱される。 In the superheated steam generation device 100 of the present embodiment configured in this way, when AC voltages of different phases are applied to each superheated steam generation unit 100A, 100B, and 100C, each superheated steam generation unit performs the first and second preheating. An alternating current flows through the conductor tubes 31 and 32, and magnetic flux flows through the leg cores 21-23. Due to the magnetic flux, a short circuit current flows through the first overheating conductor pipe 41, the second overheating conductor pipe 42, and the connecting pipe elements 43, 44, and the overheating conductor pipe 4 generates Joule heat. Further, the first and second preheating conductor tubes 31 and 32 generate Joule heat when energized by applying an alternating current voltage, and are heated by heat transfer from the overheating conductor tube 4. Furthermore, in the second preheating conductor pipe 32, a short circuit current flows through the short circuit portion 32X, and the second preheating conductor pipe 32 is heated to a higher temperature than other parts.

これにより、図３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２予熱導体管３１、３２を流れることにより、第１、第２予熱導体管３１、３２により加熱されて高温の水又は飽和水蒸気となる。また、過熱導体管４に流入する直前に第２予熱導体管３２の短絡部３２Ｘによりさらに加熱される。その後、第２予熱導体管３２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 FIG. 3, the water introduced from the introduction port P1 of the first preheating conductor pipe 31 flows through the first and second preheating conductor pipes 31 and 32, thereby allowing the water to flow through the first and second preheating conductor pipes 31 and 32. It is heated by the pipes 31 and 32 to become high temperature water or saturated steam. In addition, immediately before flowing into the overheating conductor pipe 4, it is further heated by the short circuit portion 32X of the second preheating conductor pipe 32. Thereafter, the high-temperature water or saturated steam that has flowed into the superheated conductor pipe 4 from the second preheating conductor pipe 32 is heated by the superheated conductor pipe 4 to become superheated steam, which is led out from the outlet port P2, and then merges 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、３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. Effects of this embodiment>
According to the superheated steam generation device 100 configured in this way, since superheated steam is generated by applying AC voltages of different phases to the three superheated steam generation units 100A, 100B, and 100C, a three-phase AC power source is used. The ability to generate superheated steam in the superheated steam generation device 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、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。 A first preheating conductor pipe 31 and a second preheating conductor pipe 32 are used as the primary coil, and a superheating conductor pipe 4 as a secondary coil is provided between the first preheating conductor pipe 31 and the second preheating conductor pipe 32. Therefore, the first preheating conductor tube 31 and the second preheating conductor tube 32 are electrically heated and heated using the heat radiation of the overheating conductor tube 4, thereby reducing heat radiation from the overheating conductor tube 4 to the outside of the device. It is possible to increase thermal efficiency.

特に、本実施形態では、第２予熱導体管３２が、螺旋状の軸方向に短絡させた短絡部３２Ｘを有しているので、過熱導体管４に流入する予熱された水又は飽和水蒸気を短絡電流によるジュール発熱によりさらに加熱することができる。その結果、導入ポートＰ１から導入された水又は水蒸気により過熱導体管４が冷やされる影響を低減して、過熱水蒸気を所望の温度に加熱するための時間を短縮することができる。また、水量の変化による過熱水蒸気の温度変化に対応して、水量の変化に関わらず過熱水蒸気を所望の温度に加熱することができる。 In particular, in this embodiment, since the second preheating conductor pipe 32 has a spiral short-circuit part 32X short-circuited in the axial direction, the preheated water or saturated steam flowing into the superheating conductor pipe 4 is short-circuited. Further heating can be achieved by Joule heat generation caused by the current. As a result, the influence of cooling the superheated conductor pipe 4 by the water or steam introduced from the introduction port P1 can be reduced, and the time required to heat the superheated steam to a desired temperature can be shortened. Further, in response to a change in the temperature of the superheated steam due to a change in the amount of water, the superheated steam can be heated to a desired temperature regardless of the change in the amount of water.

ここで、一次コイルを形成する第１予熱導体管３１及び第２予熱導体管３２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 and the second preheating conductor tube 32 that form the primary coil have heat generation ratio and fluid flow depending on the number of turns, current carrying cross-sectional area of the conductor tube, and communication hole diameter of the conductor tube. Heat transfer area ratio and fluid flow rate ratio can be adjusted.

また、第１予熱導体管３１、第２予熱導体管３２、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。ここで、過熱導体管４に流入する水又は飽和水蒸気の温度を短絡部３２Ｘにより高温にしているので、過熱導体管４の長さを短くすることが可能となり、これによっても過熱水蒸気生成装置１００の小型化が可能となる。 Further, the first preheating conductor pipe 31, the second preheating conductor pipe 32, and the superheating conductor pipe 4 are connected in series in this order, and water or steam is introduced from the introduction port P1 provided in the first preheating conductor pipe 31. Since the superheated steam is led out from the outlet port P2 provided in the superheated conductor pipe 4 via the second preheated conductor pipe 32, the superheated steam generation device 100 can be simplified and downsized. Here, since the temperature of the water or saturated steam flowing into the superheated conductor pipe 4 is made high by the short circuit part 32X, it is possible to shorten the length of the superheated conductor pipe 4, and this also allows the superheated steam generator 100 to can be made smaller.

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 overheating conductor pipe 4 is composed of the first overheating conductor pipe 41, the second overheating conductor pipe 42, and the connecting pipe elements 43, 44, there is no need to provide an electrical connection member separately from the conductor pipe, and the conductor A short circuit can be created by the configuration of the tube itself. In addition, the connecting pipe elements 43 and 44 connect one axial end of each of the overheating conductor pipes 41 and 42 and connect the other axial ends to each other, simplifying the connection structure for forming a short circuit. It can be done. Moreover, since the overheating conductor tube 4 has the first overheating conductor tube 41 and the second overheating conductor tube 42, the contact area with the fluid (heat exchange area) 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、閉磁路鉄心２を多段形状として鉄心の表面積を増やしているので、冷却効果を大きくすることができる。 By using the overheating conductor tube 4 as a secondary coil with multiple turns, the excitation current can be reduced and the leakage impedance can be reduced, so the cross-sectional area of the closed magnetic circuit iron core 2 can be reduced, the amount of iron core used can be reduced, and iron loss can be reduced. can be reduced and thermal efficiency can be increased. Further, since the closed magnetic circuit iron core 2 is formed into a multi-stage shape to increase the surface area of the iron core, the cooling effect can be increased.

＜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２予熱導体管３１、３２がそれぞれ単層巻きのものであったが、第１、第２予熱導体管３１、３２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 embodiments of the present invention>
Note that the present invention is not limited to the above embodiments.
For example, in the embodiment, the first and second preheating conductor tubes 31 and 32 are each wound in a single layer, but at least one of the first and second preheating conductor tubes 31 and 32 is wound in two or more layers. It may be of.

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。 Further, in the embodiment, the winding directions of the first overheating conductor pipe 41 and the second overheating conductor pipe 42 were opposite to each other, but the winding direction of the first overheating conductor pipe 41 and the second overheating conductor pipe 42 was may be in the same direction. In this case, one axial end of the first overheating conductor pipe 41 and the other axial end of the second overheating conductor pipe 42 are connected by the connecting pipe element 43, and the other axial end of the first overheating conductor pipe 41 and one axial end of the second overheating conductor pipe 42 are connected by a connecting 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。 Further, although the superheating conductor pipe 4 in the embodiment described above has a double pipe structure, it may have a quadruple pipe structure or an even number of pipe elements. In this case, every two pipe elements are connected by a connecting pipe element. For example, it is conceivable that a plurality of the overheating conductor tubes 4 of the above embodiment are arranged concentrically.

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 embodiment described above, the three outlet ports P2 are connected to one superheated steam discharge port P3, but superheated steam is discharged independently from the three outlet ports P2 without providing the superheated steam discharge port P3. You can also 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 embodiment described above, a device that heats water or steam as a fluid has been described, but it may be a device that heats other liquids or gases.

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, it goes without saying that the present invention is not limited to the embodiments described above, and that various modifications can be made without departing from the spirit thereof.

１００・・・過熱水蒸気生成装置
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
３２Ｘ・・・短絡部
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 generation device 2... Closed magnetic path iron core 21, 22, 23... Leg core 3... Preheating conductor tube 31... First preheating conductor tube 32... Second preheating conductor tube 32X...Short circuit part 4...Overheating conductor tube 41...First overheating conductor tube 42...Second overheating conductor tube 43, 44...Connecting pipe element P1...Introduction port P2... Lead-out port 8...Insulating material

Claims (4)

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、
３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、
交流電圧が印加される一次コイルであり、前記脚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、前記脚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、前記脚鉄心の周りに同心状に配置された第１予熱導体管及び第２予熱導体管を有し、
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予熱導体管及び前記過熱導体管の順に直列に接続されており、
前記第２予熱導体管は、螺旋状の軸方向に短絡させた短絡部を有しており、
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 generation device that generates superheated steam by generating heat in a conductor tube by electromagnetic induction to heat water flowing through the conductor tube,
Three leg cores of a three-phase closed magnetic circuit core are used to configure three superheated steam generation units, and superheated steam is generated by applying alternating current voltages of different phases to the three superheated steam generation units. ,
Each of the superheated steam generation units is
a spiral preheating conductor tube which is a primary coil to which an alternating current voltage is applied and is arranged around the leg core;
a secondary coil through which an induced current flows, and a spiral superheated conductor tube arranged around the leg core;
The preheating conductor pipe has a first preheating conductor pipe and a second preheating conductor pipe arranged concentrically around the leg core,
The respective conductor pipes are arranged in the order of the second preheating conductor pipe, the overheating conductor pipe, and the first preheating conductor pipe from the inside in the radial direction, and the first preheating conductor pipe, the second preheating conductor pipe, and the superheating conductor pipe. The conductor tubes are connected in series,
The second preheating conductor tube has a spiral short-circuited portion in the axial direction,
Superheated steam, in which water or steam is introduced from an introduction port provided in the first preheating conductor pipe, and superheated steam is led out from an outlet port provided in the superheating conductor pipe via the second preheating conductor pipe. generator. 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設けられており、
前記過熱導体管の軸方向他端部に前記導出ポートが設けられている、請求項１に記載の過熱水蒸気生成装置。 The introduction port is provided at one axial end of the first preheating conductor tube,
The superheated steam generation device according to claim 1, wherein the outlet port is provided at the other axial end of the superheated conductor pipe. 前記第２予熱導体管の軸方向一端部及び前記過熱導体管の軸方向一端部が接続されており、
前記短絡部は、前記第２予熱導体管において、軸方向一端部側に設けられている、請求項１又は２に記載の過熱水蒸気生成装置。 One axial end of the second preheating conductor tube and one axial end of the overheating conductor tube are connected,
The superheated steam generation device according to claim 1 or 2, wherein the short-circuit portion is provided on one axial end side of the second preheating conductor pipe. 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する、請求項１又は２に記載の過熱水蒸気生成装置。 The overheating conductor tube includes a first overheating conductor tube and a second overheating conductor tube, which are arranged concentrically around the closed magnetic circuit iron core and spirally wound in opposite directions to each other, and the first overheating conductor tube. and a connecting pipe element that fluidly connects one axial end of the second overheating conductor pipe and the other axial end of the second overheating conductor pipe and short-circuits them. Device.