KR102082012B1 - Fluid heating apparatus - Google Patents

Abstract

The present invention relates to a fluid heating device for energizing and heating a fluid pipe in which a fluid flows to improve fluid efficiency by improving a circuit power factor and having a flow path (R) through which a heated fluid flows therein. A fluid heating device (100) for energizing and heating a flow path forming body (2) comprising a first feed member (3) connected to one end side (2a) of a flow path of the flow path forming body (2); And a second feed member 4 connected to the other end side 2b of the flow path forming body 2, wherein the second feed member 4 is along the flow path direction of the flow path forming body 2; It is arrange | positioned toward the flow path one end side 2a.

Description

Fluid Heater {FLUID HEATING APPARATUS}

The present invention relates to a fluid heating device.

As a fluid heating device, as shown in Patent Literature 1, there is a case where a hollow conductor tube is energized by heating, and a fluid flowing through the inside of the conductor tube is heated to generate a heating fluid. In this fluid heating device, an alternating current is applied from electrodes provided at both ends of the conductive pipe, and an alternating current flows through the side wall of the conductive pipe, whereby the conductive pipe is formed by Joule heat generated by the internal resistance of the conductive pipe. Self-heating The self-heating of the conductor tube heats the fluid flowing through the conductor tube.

However, in applying AC voltage to both ends of a conductor tube, a voltage drop occurs due to the inductance of the conductor tube, and the power factor of the circuit for applying the AC voltage to the conductor tube decreases. have.

[Patent Document 1] Japanese Patent Application Laid-Open No. 2011-86443

Therefore, the present invention has been made to solve the above problems at once, and in the fluid heating apparatus for energizing and heating the flow path forming body in which the fluid flows therein, the main aim is to improve the circuit power factor and improve the equipment efficiency. will be.

That is, the fluid heating device according to the present invention is a fluid heating device for energizing and heating a flow path forming body made of a conductive material having a flow path through which a heated fluid flows, thereby heating the heated fluid flowing through the flow path. AC voltage is applied between the first feed member connected to one end of the flow path of the sieve and the second feed member connected to the other end side of the flow path forming member. It is characterized by arrange | positioning toward the one end side of a flow path along the flow path direction of a flow path formation body.

In this case, since the current flowing in the flow path forming body and the current flowing in the second feed member are reversed, the magnetic flux generated by each current is removed, and the reactance generated in the flow path forming body is reduced. Can be reduced to improve circuit power factor. Therefore, the installation efficiency of the fluid heating device can be improved.

In order to sufficiently exhibit the effect of removing the magnetic flux generated by the current of the flow path forming body by the magnetic flux generated by the current of the second feed member, the first feed member and the second feed member are formed in the flow path forming body. It is preferable that the flow path is drawn out from the one end side to the power supply side. In this case, since the first feed member and the second feed member are drawn out from one end of the flow path forming member, the magnetic flux generated by the current flowing through the first feed member or along the flow path forming member in the second feed member. It is possible to prevent the magnetic flux generated by the electric current flowing through the portions other than the broken portions from inhibiting the effect of removing the magnetic flux. Moreover, after arrange | positioning a 2nd power feeding member from the other end side of the flow path body from the flow path end side, it is only to pull out from the flow path end side as it is, and can simplify a device structure.

As an aspect of specific embodiment of a flow path forming body, it is preferable that the said flow path forming body forms a straight pipe shape. In this way, the structure of the flow path forming body can be simplified. In addition, the second power feeding member can be easily disposed along the flow path direction of the flow path forming member, and the configuration of the second power feeding member can be simplified.

It is preferable that connecting portions for connecting to other flow path forming bodies are provided at both ends of the flow path forming body. In this way, by connecting a plurality of flow path forming bodies, a fluid heating device having a flow path having a desired length can be configured.

In a specific embodiment of the first feed member and the second feed member, the first feed member is connected to the first electrode provided on one end side of the flow path of the flow path forming member, and the first electrode is connected to the first electrode. A first wire for applying a voltage, wherein the second feeding member is connected to the second electrode provided at the other end of the flow path forming member, and connected to the second electrode to apply an AC voltage to the second electrode; It is preferable that it consists of a second wire for.

In the second feed member, it is preferable that the second electrode is disposed toward one end of the flow path along the flow path direction of the flow path forming body. In this way, by simply connecting the second electric wire to the second electrode, a configuration in which the current flowing in the flow path forming body and the current flowing in the second power feeding member is reversed can be realized, and the circuit connection work can be facilitated.

In the second feed member, it is preferable that the second electric wire is disposed toward one end of the flow path along the flow path direction of the flow path forming member. In this case, since the second electric wire can be configured to conform to the flow path forming body, the configuration of the second electrode can be simplified.

An insulating heat insulating member is provided on an outer circumference of the flow path forming body, and the second electric wire is in contact with the insulating heat insulating member, and a naked wire is disposed toward one end of the flow path along the flow path direction of the flow path forming body. It is preferable to have a wire). In this way, even if the flow path forming body is energized and heated, the heat radiation from the flow path forming body to the outside can be reduced. In addition, since the second electric wire has a bare wire arranged in contact with the insulating heat insulating member, the reactance can be reduced while cooling the second electric wire.

The n group (n is an integer of 1 or more) in which the fluid heating device connects two flow path forming bodies so that the flow paths communicate with each other and the first feeding member provided in the two flow path forming bodies is located inside. And a power supply of the same polarity is applied to the two first feed members in each fluid heating unit, and to the two second feed members in each fluid heating unit. In addition, it is preferable that the power output of the same or different polarity is applied to the first power feeding member and that is different from each other. In this way, by selecting the number of fluid heating units to be connected, a fluid heating device having a flow path having a desired length can be configured. In addition, using the fluid heating unit, Scott converts three-phase alternating current from a single-phase alternating current power supply, a three-phase alternating current power supply, or a three-phase alternating current power supply into two single-phase alternating currents in each fluid heating unit. A wiring transformer can be connected.

In order to individually control the temperatures of the two flow path forming members constituting the fluid heating unit, a current control circuit is provided on a circuit for inputting the power output to the two second feeding members constituting the fluid heating unit. It is desirable to have.

N set (n is a fluid heating apparatus connected three flow path forming bodies so that these flow paths may communicate and the 1st feeding member and the 2nd feeding member provided in the said 3 flow path forming bodies may face the same direction. And a first flow path forming body, a second flow path forming body, and a third flow path forming body, each of which comprises each of the fluid heating units. The first phase of the three-phase alternating current is connected to the first feed member of the sieve and the second feed member of the second flow path forming member, wherein the first feed member of the second flow path forming body and the third flow path forming body are connected. The second phase of the three-phase alternating current is connected to the second feed member of the third phase, and the third phase of the three-phase alternating current is connected to the first feed member of the third flow path forming member and the second feed member of the first flow path forming member. It is desirable to have. In this way, by selecting the number of fluid heating units to be connected, a fluid heating device having a flow path having a desired length can be configured. In addition, by using the fluid heating unit, a three-phase alternating current power source can be connected to each fluid heating unit as it is.

A fluid heating device for energizing and heating a flow path forming body made of a conductive material having a flow path in which a heated fluid flows therein, and heating the heated fluid flowing in the flow path, wherein the flow path body is different in the flow path direction. A polarity of a three-phase AC power source having 3 n + 1 power feeding members connected to the position (n is an integer of 1 or more) and connected to the three power feeding members arranged in series with the 3 n + 1 power feeding members, respectively. In order to be different, it is preferable that the U phase, V phase, and W phase of a three-phase alternating current power supply are alternately connected. In this case, since the U-phase, V-phase, and W-phase of the three-phase AC power source are connected so that the polarity of the three-phase AC power source connected to the three feeding members arranged in a row is different, the magnetic flux generated by the current flowing through the flow path forming body. This offset, the impedance generated in the flow path forming body is reduced to improve the circuit power factor. Therefore, the installation efficiency of the fluid heating device can be improved.

In addition, the fluid heating device according to the present invention is a fluid heating device which energizes and heats a flow path forming member made of a conductive material having a flow path through which a heated fluid flows, and heats the heated fluid flowing through the flow path. AC voltage is applied between the first feed member connected to one end of the flow path of the forming body and the second feed member connected to the other end side of the flow path forming body, and the second feed member forms the flow path. It has a covering which covers the substantially perimeter of the outer periphery surface at the one end side of a flow path from the other end of the flow path of a sieve, The other end of the flow path of the said cover body is electrically connected to the said flow formation body, It is characterized by the above-mentioned.

In this case, the current flowing through the flow path forming body and the current flowing through the second feed member, particularly the covering body are reversed, so that the magnetic flux generated by each current is canceled, and the reactance generated in the flow path forming body is reduced. The circuit power factor can be improved. Therefore, the installation efficiency of the fluid heating device can be improved. In addition, since almost the entire circumference of the outer circumferential surface at one end of the flow path from the other end of the flow path forming body is covered by the covering, the cover also functions as a heat retaining member, and therefore, the inside of the flow path forming body and the flow path forming body. It is possible to prevent the temperature of the heated fluid flowing through the lowering.

In order to eject the heated fluid from the flow path forming body at a higher temperature, it is preferable that a fluid ejection port is provided in the flow path forming body at the other end side of the flow path than the connection portion with the covering body. In this case, since it is possible to directly eject from the fluid ejection opening provided in the said flow path formation body, it can eject as it is, without reducing the temperature of the to-be-heated fluid heated inside the said flow path formation body.

It is preferable that the said fluid ejection port is provided in the outer peripheral surface of the said flow path formation body. In this way, since the fluid ejection opening is provided in the outer peripheral surface of the said flow path formation body, the fluid heated in the outer peripheral direction of the said flow path formation body can be ejected. Thus, for example, it is possible to directly eject the heated fluid to the inner circumferential surface of the bottomed cardiovascular system or the penetrating deep hole, thereby efficiently surface reforming the inner circumferential surface of the cardiovascular system or the deep hole. (改 質) can be. Here, the opening shape of the cardiovascular system or the deep hole to be processed may be a circular shape, an ellipse, a polygon, or the like, and is not limited to a specific opening shape. The cardiovascular system or the cardiac cavity satisfies the relationship of d <L when the maximum dimension of the opening shape is d and the depth dimension of the cardiovascular system or the length dimension of the cardiac cavity is L. Further, when the fluid ejection port is provided along the circumferential direction of the flow path forming body, the fluid heated in the outer circumferential direction of the flow path forming body can be ejected more efficiently. As a form in the case where the said fluid ejection port is provided along a circumferential direction, for example, one said fluid ejection port may extend along the circumferential direction of the said flow path formation body, and several said fluid ejection openings may be said flow path formation body. It may be lined up along the circumferential direction.

It is preferable that the flow path forming body is made of a conductive material having a higher electrical resistance than the covering. In this way, since the said flow path formation body can be heated more efficiently at the time of energization heating, a to-be-heated fluid can be made into a high temperature state efficiently.

It is preferable that the said coating body consists of copper or an oil. In this way, by forming the said cover body by copper or essential oil with low electrical resistance, the said cover body can be prevented from being heated by electricity supply, and the said flow path formation body can be heated efficiently.

It is preferable that the said flow path forming body and the said coating body form a straight tube shape, respectively, and are electrically connected by welding the said flow path forming body and the said coating body. In this way, the structure of the flow path forming body can be simplified. In addition, the coating member can be easily arranged along the flow path direction of the flow path forming member, and the structure of the coating member can be simplified.

It is preferable that an insulating member is provided between the flow path forming body and the covering. In this way, the flow path forming body and the covering body can be insulated reliably, and a short circuit at a portion other than the connecting portion can be prevented.

An insulating member made of a ceramic material is provided which covers the outer circumferential surface at the other end side of the flow path from one end of the flow path forming body, and from the outer circumferential surface at the other end side of the flow path than the insulating member in the flow path forming body, It is preferable that the said coating body is formed by winding a metal foil over an outer peripheral surface. In this case, since the said coating body can be comprised by thin metal foil, the whole fluid heating apparatus can be made into small dimension. Moreover, since the said insulating member consists of a ceramic material which has heat resistance, insulation can be ensured even under high temperature conditions, such as the case of generating high temperature superheated steam.

It is preferable that the outer side insulating member which consists of a ceramic material covering the substantially perimeter of the outer side circumferential surface in the said coating body is provided. In this way, even when the installation object in which the fluid heater is installed is made of a conductive member, or becomes conductive by ejected heated fluid, it is possible to prevent the short-circuit from outside of the covering. Moreover, since the said insulating member consists of a ceramic material which has heat resistance, insulation can be ensured even under high temperature conditions, such as the case of generating high temperature superheated steam.

The heated fluid flowing into the flow path forming body is saturated steam or superheated steam, and the fluid flowing out of the flow path forming body is superheated steam.

Moreover, the fluid heating apparatus which concerns on this invention is an fluid heating apparatus which energizes and heats an alternating current by applying an alternating voltage to the conductor pipe | tube which flows a fluid inside, and heats the fluid which flows in the said conductor pipe | tube, 2N pieces (N is 1 or more) The conductive pipes are arranged so as to be parallel to each other, and one ends of the 2N conductor pipes are electrically connected to each other, and the other ends of the 2N conductor pipes are connected to the other end portions adjacent to each other. The U-phase and V-phase of the single-phase AC power supply are alternately connected so that the polarity of the single-phase AC power supply is different.

In such a case, since the currents flowing through the adjacent conduit tubes are reversed to each other, the magnetic fluxes generated by the respective currents cancel each other out, so that the impedance generated in the conductive conduits can be reduced to improve the circuit power factor. Therefore, the installation efficiency of the fluid heating device can be improved.

In addition to being connected to one end of the 2N conductor pipe, the 2N conductor pipe has a conductivity pipe for conducting the fluid flow, and the 2N conductor pipes are electrically connected by the flow pipe. desirable. In this way, the number of fluid inlets can be reduced than 2N by flowing the fluid from the flow pipe into the 2N conductor pipe, and the piping configuration can be simplified. In addition, since the splitter tube has conductivity, electrical connection can be realized with the simplification of the piping configuration. In particular, in order to simplify the piping configuration, it is preferable to connect a single branch pipe branched into 2N pieces to one end of the 2N conductor pipes.

Moreover, the fluid heating apparatus which concerns on this invention is an fluid heating apparatus which energizes and heats an alternating current by applying an alternating voltage to the conductor pipe | tube through which a fluid flows, and 3N pieces (N is one or more) The conductive pipes are arranged so as to be parallel to each other, one ends of the 3N conductor pipes are electrically connected to each other, and the other ends of the 3N conductor pipes are arranged in three consecutive ends. The U-phase, V-phase, and W-phase of the three-phase AC power source are alternately connected so that the polarity of the three-phase AC power source to be connected is different.

In this case, since the U-phase, V-phase, and W-phase of the three-phase AC power supply are connected to each other so that the polarity of the three-phase AC power source connected to the three other ends arranged in succession is different, the current flowing through the three consecutively arranged conductor pipes. The magnetic flux generated by this cancels out and the impedance generated in the conductor tube is reduced to improve the circuit power factor. Therefore, the installation efficiency of the fluid heating device can be improved.

In addition to being connected to one end of the 3N conductor pipes, the 3N conductor pipe has a conductivity pipe for conducting the fluid flow, and the 3N conductor pipes are electrically connected by the flow pipe. desirable. In this way, the number of fluid inlets can be reduced than that of 3N by flowing fluid from the flow dividing pipe to the 3N conductor pipe, and the piping configuration can be simplified. In addition, since the splitter tube has conductivity, electrical connection can be realized with the simplification of the piping configuration. In particular, in order to simplify the piping configuration, it is preferable to connect a single branch pipe branched into 3N parts to one end of the 3N conductor pipes.

The fluid heated by one heat source is generally discharged intensively from one place. However, when the heated fluid is used, the fluid is often dispersed. In addition, the heated fluid may be kept warm or further heated so as not to lower the temperature. For this reason, it is preferable that the other end part of the said conductor pipe | tube is closed, and the some fluid ejection port is formed in the middle of the said conductor pipe, and the said fluid is ejected from the said fluid ejection port.

In addition, it is preferable that the conductor tube is inserted into a receiving chamber such as an accommodating vessel for accommodating the heated fluid or in a processing chamber such as a processing vessel for treating the object by the heated fluid. In this way, the heated fluid can be kept warm or heated by accommodating the storage chamber. Moreover, a to-be-processed object can be processed in a processing chamber. At this time, it is preferable that the single-phase alternating current power supply or three-phase alternating current power supply connected to the said conductor pipe is provided in the space different from the said accommodation chamber or the said processing chamber. In the present invention, since the conductor tube functions as a superheated steam generator, the conductor tube is inserted into the insulation chamber or the treatment chamber and provided with a single-phase alternating current or three-phase alternating current power provided outside the insulation chamber or treatment chamber. As a result, the piping configuration can be simplified, and the thermal efficiency can be improved, thereby greatly contributing to energy saving. In addition, it is possible to simplify the overall configuration of the fluid heating apparatus by connecting the insulation chamber or the processing chamber with a space (for example, a power supply chamber) in which a single phase alternating current power supply or a three phase alternating current power supply is installed. The three-phase alternating current power supply is not subject to heat from the conductive tube.

It is preferable that the electrode connected to the other end of the said conductor pipe is a shape along the outer peripheral surface of the said conductor pipe. In this case, when the conductor pipe is provided by being inserted from the recess wall such as the side wall of the insulation chamber or the processing chamber, when the conductor tube is attached to the recess wall such as the side wall of the insulation chamber or the treatment chamber, The electrode does not interfere when it comes out.

It is preferable that the said conductor tube forms a round tube shape, and that the electrode forms a partial cylindrical shape. In this way, the contact area between the fluid and the conductor tube can be made as large as possible to improve the heating efficiency. In addition, the electrode has a partial cylindrical shape, and the electrode is not disturbed when the conductor tube is attached to or detached from a recessed wall such as a side wall of the insulation chamber or the treatment chamber.

Preferably, one or more fluid ejection nozzles are provided in the middle of the conductor pipe, and the fluid is ejected from the fluid ejection nozzles. In this way, by providing a fluid ejection nozzle in the conductor pipe, the heated fluid can be ejected in a predetermined injection range determined by the fluid ejection nozzle. Here, the fluid ejection nozzle provided in the conductor pipe is selected according to the use.

In addition, the fluid heating device according to the present invention is a fluid heating device for energizing and heating a flow path forming body made of a conductive material flowing inside a heated fluid, and heating the heated fluid flowing through the flow path, wherein the flow path forming body has a linear shape. A plurality of fluid ejection ports for ejecting a fluid flowing through the flow path, the one or a plurality of straight parts forming a flow path of the flow path, and a plurality of electrodes connected to the flow path direction of the flow path in the straight part; The U-phase and V-phase of the single-phase AC power supply are alternately connected so that the polarity of the single-phase AC power source connected to the electrodes adjacent to each other is different.

In this case, since the phases of the currents flowing between the electrodes adjacent to each other are reversed to each other, the magnetic fluxes generated by the respective currents cancel each other out, thereby reducing the impedance generated in the flow path forming body to improve the circuit power factor. Can be. Therefore, the installation efficiency of the fluid heating device can be improved. Further, since a plurality of fluid ejection openings are provided in the straight portion, the heated heated fluid can be ejected directly from the flow path forming body to an external predetermined injection range.

It is preferable that the said electrodes are respectively connected in the position which divides the said linear part into 2n equal parts (n is an integer greater than or equal to 1) along the said flow path direction. This makes the amount of magnetic fluxes generated between the electrodes substantially the same, so that the magnetic fluxes generated between the electrodes can be efficiently removed.

In addition, the fluid heating device according to the present invention is a fluid heating device which energizes and heats a flow path forming member made of a conductive material having a flow path through which a heated fluid flows, and heats the heated fluid flowing through the flow path. Each of the formed bodies is disposed substantially parallel to each other, and one meandering line is formed by connecting 2n straight portions (n is an integer of 1 or more) to form a straight flow path and end portions of the straight portions adjacent to each other. A plurality of fluid ejection openings for ejecting a fluid flowing through the flow path are provided in the flow path forming body, wherein the flow path forming body has 2n-1 refoldable portions, and electrodes are connected to both ends of the meandering flow path in the flow path forming body. In addition, an electrode is connected to at least one of the 2n-1 refolders, and the plurality of electrodes flow paths between the electrodes adjacent to each other along the flow path direction. It is preferable that the U-phase and the V-phase of the single-phase AC power supply are alternately connected so that the number of the linear portions forming the sigma is connected evenly, so that the polarity of the single-phase AC power supply connected to the electrodes adjacent to each other along the flow path direction is different. Do.

In such a case, since the currents flowing in the straight portions adjacent to each other are reversed to each other, the magnetic fluxes generated by the respective currents cancel each other, and the impedance generated in the flow path forming body is reduced to improve the circuit power factor. Therefore, the installation efficiency of the fluid heating device can be improved. Further, since a plurality of fluid ejection openings are provided in the straight portion, the heated heated fluid can be ejected directly from the flow path forming body to an external predetermined injection range.

It is preferable that the electrodes connected to the said refolder are connected so that the said linear part which forms the flow path between the electrodes adjacent to each other along the said flow path direction may become two.

In this way, there are two straight portions between the electrodes adjacent to each other along the flow path direction, and the magnetic fluxes generated by the current flowing through each straight portion can be reliably removed from each other. Thereby, the effect of reducing the impedance generated in the flow path forming body can be made more remarkable, and the effect of improving the circuit power factor can be improved.

In addition, the fluid heating device according to the present invention is a fluid heating device for energizing and heating a flow path forming body made of a conductive material flowing inside a heated fluid, and heating the heated fluid flowing through the flow path, wherein the flow path forming body has a linear shape. A plurality of fluid ejection ports for ejecting a fluid flowing through the flow path, the one or a plurality of straight parts forming a flow path of the flow path, and a plurality of electrodes connected to the flow path direction of the flow path in the straight part; It is preferable that the U-phase, V-phase, and W-phase of the three-phase alternating current power source are alternately connected so that the polarity of the three-phase alternating current power source connected to the three consecutive electrodes arranged in series is different.

In this case, since the U-phase, V-phase, and W-phase of the three-phase AC power supply are connected so that the polarity of the three-phase AC power supply connected to the three consecutively arranged electrodes is different, the current flowing through the three consecutively arranged electrodes Since the generated magnetic flux is canceled and the impedance generated in the flow path forming body is reduced, the circuit power factor can be improved. Therefore, the installation efficiency of the fluid heating device can be improved. Moreover, since the some fluid ejection opening is provided in the said linear part, it can eject in the predetermined injection range.

It is preferable that the said electrodes are respectively connected in the position which divides the said linear part into 3n equal parts (n is an integer greater than or equal to 1) along the said flow path direction. This makes the amount of magnetic fluxes generated between the electrodes substantially the same, so that the magnetic fluxes generated between the electrodes can be efficiently removed.

In addition, the fluid heating device according to the present invention is a fluid heating device which energizes and heats a flow path forming member made of a conductive material having a flow path through which a heated fluid flows, and heats the heated fluid flowing through the flow path. Each of the formed bodies is disposed substantially parallel to each other to form one flow path that meanders by connecting 3n straight portions (n is an integer equal to or greater than 1) that form a straight flow path and ends of the straight portions adjacent to each other. And a plurality of fluid ejection ports for ejecting the fluid flowing through the flow path in the flow path forming body, and having three-phase alternating portions at both ends of the meandering flow path in the flow path forming body. The electrodes connected to the power source are connected to each other, and the polarity of the three-phase AC power source connected to the three electrodes arranged in a row along the flow path direction of the flow path It is preferable that the U-phase, V-phase, and W-phase of the three-phase AC power supply are alternately connected so as to be different from each other.

In this case, since the U-phase, V-phase, and W-phase of the three-phase AC power supply are connected so that the polarity of the three-phase AC power supply connected to the three consecutively arranged electrodes is different, the current flowing through the three consecutively arranged electrodes Since the generated magnetic flux is canceled and the impedance generated in the flow path forming body is reduced, the circuit power factor can be improved. Therefore, the installation efficiency of the fluid heating device can be improved. Further, since a plurality of fluid ejection openings are provided in the straight portion, the heated heated fluid can be ejected directly from the flow path forming body to an external predetermined injection range.

It is preferable that the flow path forming body is made of a conductive material having a higher electrical resistance than copper. In this case, when copper is used for wiring or an electrode, the flow path forming body can be efficiently heated at the time of energizing heating, so that the heated fluid can be efficiently brought into a high temperature state.

Preferably, a power control device is provided between the electrodes, and the power applied to the electrodes is configured to be controllable. This makes it possible to individually control the temperature of the flow path forming body between the electrodes, so that the heated fluid can be efficiently in a desired state.

It is preferable that the fluid ejection nozzle is mounted to the fluid ejection port. In this way, by providing a fluid ejection nozzle at the fluid ejection port, the heated fluid can be ejected in a predetermined injection range determined by the fluid ejection nozzle. Here, the fluid ejection nozzle provided in the fluid ejection port is selected according to the use.

The heated fluid flowing into the flow path forming body is saturated steam or superheated steam, and the fluid flowing out of the flow path forming body is superheated steam.

According to this invention comprised in this way, in the fluid heating apparatus which energizes and heats the flow path formation body through which a fluid flows, the circuit power factor can be improved and facility efficiency can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS The figure which shows typically the structure of the fluid heating apparatus of 1st Embodiment.
FIG. 2 is a diagram schematically showing a fluid heating device of the first embodiment and a conventional fluid heating device. FIG.
3 is a diagram schematically showing a configuration of a fluid heating device of a second embodiment.
4 is a diagram schematically showing a configuration of a fluid heating device of a third embodiment.
5 is a diagram schematically illustrating the configuration of a fluid heating device of a third embodiment, and a cross-sectional view taken along a line AA.
6 is a view schematically illustrating the configuration of a fluid heating device of a modified embodiment, and a cross-sectional view taken along line BB.
The figure which shows typically the structure of the fluid heating apparatus of modified embodiment (three-phase alternating current power supply connection).
FIG. 8 is a diagram schematically showing the configuration of a fluid heating device of a modified embodiment (single phase AC power supply connection). FIG.
The figure which shows typically the structure of the fluid heating apparatus of modified embodiment (Scott connection transformer connection).
The figure which shows typically the structure of the fluid heating apparatus of a modified embodiment.
FIG. 11 is a diagram schematically showing a configuration of a fluid heating device of a fourth embodiment. FIG.
The figure which shows typically the structure of the fluid heating apparatus of modified embodiment.
The figure which shows typically the structure of the fluid heating apparatus of a modified embodiment.
The figure which shows typically the structure of the fluid heating device of a modified embodiment.
The figure which shows typically the structure of the fluid heating device of a modified embodiment.
The figure which shows typically the structure of the fluid heating apparatus of a modified embodiment.
17 is a plan view schematically illustrating the configuration of a fluid heating device of a fifth embodiment, a cross-sectional view along the line A-A ', and a circuit configuration diagram.
FIG. 18 is a plan view schematically illustrating the configuration of a fluid heating device of a sixth embodiment, a cross-sectional view along the line A-A ', and a circuit configuration diagram. FIG.
FIG. 19 is a plan view, a sectional view taken along the line AA ′, and a circuit configuration diagram showing a modification of the sixth embodiment; FIG.
20 is a plan view and a circuit configuration diagram schematically showing the configuration of a fluid heating device of a seventh embodiment.
21 is a plan view and a circuit configuration diagram schematically showing the configuration of a fluid heating device of an eighth embodiment.
22 is a plan view and a circuit configuration diagram showing a modification of the eighth embodiment.
23 is a plan view and a circuit configuration diagram schematically showing the configuration of a fluid heating device of a modified embodiment.
24 is a plan view and a circuit configuration diagram schematically showing the configuration of a fluid heating device of a modified embodiment.
25 is a front view schematically showing the configuration of a fluid heating device having a container.
Fig. 26 is a cross-sectional view along the line A-A ', schematically illustrating the configuration of a fluid heating device having a container.
The top view which shows typically the structure of the fluid heating apparatus of modified embodiment.
The top view which shows typically the structure of the fluid heating apparatus of modified embodiment.
29 is a plan view schematically illustrating a configuration of a fluid heating device of a modified embodiment, a cross-sectional view along the line A-A ', and a circuit configuration diagram.
The front view which shows typically the structure of the fluid heating apparatus of 9th Embodiment.
The bottom view which shows typically the structure of the modification of 9th Embodiment.
The front view which shows typically the structure of the fluid heating apparatus of 10th Embodiment.
The bottom view which shows typically the structure of the modification of 10th Embodiment.
The bottom view which shows typically the structure of the fluid heating apparatus of 11th Embodiment.
The bottom view which shows typically the structure of the fluid heating device of 12th Embodiment.

EMBODIMENT OF THE INVENTION Hereinafter, each embodiment of the fluid heating apparatus which concerns on this invention is described with reference to drawings.

1. First embodiment

As shown in FIG. 1, the fluid heating apparatus 100 of 1st Embodiment applies an alternating voltage directly to the flow path forming body 2 which consists of electroconductive material in which the flow path R through which a heated fluid flows is formed, is directly applied. By energizing and heating the flow path forming body 2 by the Joule heat generated by the internal resistance of the flow path forming body 2, the to-be-heated fluid which flows through the said flow path R is heated.

The flow path forming body 2 of the present embodiment is formed of a pipe having a substantially cylindrical straight tube shape. As a result, the flow path R becomes a straight flow path.

Then, the first feed member 3 is connected to the one end portion 2a of the flow passage forming member 2 and the second end portion 2b is formed on the other end portion of the flow passage forming member 2b. The power feeding member 4 is connected. Then, the first feed member 3 and the second feed member 4 are connected to the first feed member 3 and the second feed member 4 by connecting the output terminals of the single-phase AC power supply 5 to each other. A single phase alternating voltage is applied to the flow path forming body 2 through the channel forming body 2.

The first power feeding member 3 is connected to the first electrode 31 connected to one end portion 2a of the flow path forming member 2 and one side of the single-phase AC power supply 5 connected to the first electrode 31. It consists of a first electric wire 32 connected to the output terminal of. In addition, the second power feeding member 4 is connected to the second electrode 41 provided at the other end portion 2b of the flow path forming member 2 and the second electrode 41, so that the single-phase AC power supply 5 It consists of the 2nd electric wire 42 connected to the other output terminal. The first electrode 31 and the second electrode 41 are each wound around the outer circumferential surface of the flow path forming body 2 and connected by welding or the like.

However, the first feed member 3 and the second feed member 4 are drawn out from the one end 2a of the flow path forming member 2 toward the power source 5. Specifically, the first electrode 31 is provided so as to extend in a direction perpendicular to the flow path direction, the second electrode 41 follows the flow path direction of the flow path forming body 2, and the flow path forming body 2 is formed. It extends linearly along the side circumferential surface of and is arrange | positioned toward the one end part 2a of the flow paths from the other end part 2b of the flow path. The second electrode 41 of the present embodiment is bent to extend in the same direction as the extending direction of the first electrode 31 at the other end of the flow path 2b. In addition, the extending direction of the 1st electrode 31 and the extending direction of the 2nd electrode 41 do not need to be the same direction, For example, it may be a different direction in the circumferential direction in the other end part 2b of a flow path. In addition, in this embodiment, although the space is formed between the 2nd electrode 41 and the outer peripheral surface of the flow path forming body 2, the 2nd electrode (which faces the outer peripheral surface of the flow path forming body 2 and this outer peripheral surface ( You may provide an insulation member between 41 and.

In addition, the second power feeding member 4 is disposed from the other end portion 2b of the flow path toward the one end of the flow path 2a along the flow path direction of the flow path forming body 2, and the first power feeding member 3 and the second power feeding are arranged. Since the member 4 is pulled out from the one end part 2a of the flow path forming body 2 to the power supply 5 side, the 1st electrode 31 and the 2nd electrode 41 in the flow path forming body 2 are carried out. The second feed member 4 (specifically, the second electrode 41) is provided in the vicinity of the outer circumferential surface between the two.

In the fluid heating apparatus 100 configured as described above, when the single-phase alternating voltage is applied from the single-phase alternating current power supply 5 to the flow path forming body 2 through the first feed member 3 and the second feed member 4, Current flowing in the flow path forming body 2 between the first electrode 31 and the second electrode 41 and in the second electrode 41 facing the outer circumferential surface of the flow path forming body 2. Is reversed. By doing so, the magnetic fluxes generated by the respective currents are canceled out, the reactances generated in the flow path forming body 2 are reduced, and the circuit power factor can be improved. Therefore, the equipment efficiency of the fluid heating apparatus 100 can be improved.

Next, the test which shows the improvement of the power factor of the fluid heating device 100 comprised in this way is demonstrated. In addition, in the following test, in order to show the comparative tendency remarkably, the single phase ac power supply of the frequency of 800 Hz was used.

Fig. 2 (1) shows a circuit configuration of the present invention in which a pipe of a material SUS304, an outer diameter of 34 mm, a wall thickness of 1.65 mm, a length of 2200 mm, and a temperature of 20 ° C. is disposed along the power feeding member. And (2) show a conventional circuit configuration in which the same pipe as in (1) is used so that the pipe does not follow the power feeding member.

At this time, as shown in Table 1 below, in the case of the circuit configuration (1), the power factor was 0.251, whereas in the case of the circuit configuration (2), the power factor was 0.102. Thus, in the circuit configuration (1) of FIG. 2, since the magnetic flux which generate | occur | produces in a flow path formation body and a 2nd electrode cancels, voltage drop is suppressed and it is thought that a power factor improved. Moreover, when it converts into the AC voltage of commercial frequency 60 Hz, it turns out that the power factor of the circuit structure 1 is 0.961, and the power factor of the circuit structure 2 is 0.810, and the big improvement effect is acquired.

2. Second Embodiment

In the fluid heating device 100 of the second embodiment, as shown in FIG. 3, a three-phase alternating voltage is applied directly to the flow path forming body 2 forming the straight flow path R, thereby energizing the flow path directly. The heated fluid flowing through the flow path R is heated by heating the flow path forming body 2 by the Joule heat generated by the internal resistance of the sieve 2.

In the fluid heating apparatus 100, one first power feeding member 3 and three second power feeding members 4 are connected to one flow path forming body 2. Specifically, the first feed member 3 is connected to one end portion 2a of the flow path forming body 2, and the three second feed members 4 are connected to one end of the flow path forming body 2 of the flow path forming body 2. It is connected to the flow path formation body 2 in the position which becomes substantially equally spaced so that it may divide into approximately 3 equal parts between 2a) and the other end part 2b of flow paths.

Here, the number of the second power feeding members 4 is not limited to three, but may be 3n, for example, where n is an integer of 1 or more. The 3n second power feeding members 4 form a flow path at a position that divides approximately 3n between the one end portion 2a of the flow path forming body 2 and the other end portion 2b of the flow path forming body 2 when n≥2. It is only necessary to be connected to the sieve 2.

3, the U-phase and V-phase of the three-phase alternating current power source 5 are different so that the polarity of the three-phase alternating current power source connected to the three feeding members arranged in a row is different. And the W phases are alternately connected. Specifically, the U phase of the three-phase alternating current power source 5 is connected to the first power feeding member 3, and the three second power feeding members 4 are in order from the one end portion 2a of the flow path forming member 2. As a result, the W phase is connected to the first second power supply member 4, the V phase is connected to the second second power supply member 4, and the U phase is connected to the third second power supply member 4.

Here, the order of the U phase, V phase, and W phase of the three-phase AC power source 5 connected to each power supply member is not limited to that shown in FIG. 3, and the U phase, V phase, and W phase are sequentially connected to each power supply member. All you need is

In addition, as shown in FIG. 3, in the fluid heating device 100, the second power feeding member 4 follows the flow path direction of the flow path forming body 2, and the side circumferential surface of the flow path forming body 2 is formed. Therefore, it extends linearly to the vicinity of the power feeding member which adjoins each other on the flow path end part 2a side. In addition, in this embodiment, although the space is formed between the 2nd electrode 41 and the outer peripheral surface of the flow path forming body 2, the 2nd electrode (which faces the outer peripheral surface of the flow path forming body 2 and this outer peripheral surface ( You may provide an insulation member between 41 and.

In the fluid heating device 100 configured as described above, the U-phase, V-phase, and W of the three-phase alternating current power source are different so that the polarity of the three-phase alternating current power supply 5 connected to three second power feeding members 4 arranged in a row is different. Since the phases are connected, the magnetic flux generated by the current flowing through the flow path forming body 2 and the second feed member 4 is canceled, and the impedance generated in the flow path forming body 2 is reduced, thereby improving the circuit power factor. . Therefore, the equipment efficiency of the fluid heating apparatus 100 can be improved.

3. Third embodiment

4 and 5, the fluid heating device 100 of the third embodiment includes three straight portions 2a to 2c in which the flow path forming body 2 forms a straight flow path, and the straight line. It has two retracting parts 2Y and 2Z which connect the parts 2a-2c. Specifically, the straight portions 2a to 2c have approximately the same length. In addition, the refold portions 2Y and 2Z are configured in a 'co' shape or a 'U' shape so that the straight portions 2a to 2c are substantially parallel to each other.

Here, as the arrangement of the straight portions 2a to 2c, the straight portions 2a to 2c may be substantially parallel to each other. As shown in FIG. 4, even if the straight portions 2a to 2c are arranged at equal intervals on the same plane. As shown in FIG. 5, the three straight portions 2a to 2c may be disposed so as to be located at the vertices of the triangle.

In addition, the number of the linear parts of the flow path forming body 2 is not limited to three, For example, you may set it as 3n pieces (n is an integer of 1 or more). In the case of n≥2, 3n-1 retracting portions are provided, and are arranged at positions that are approximately equal to 3n between the one end portion 2a of the flow path forming member 2 and the other end portion 2b of the flow path forming body 2.

In the fluid heating apparatus 100 using the flow path forming body 2, four first feeding members 3 are connected to the flow path forming body 2. Specifically, the first feed member 3 is connected to one end of the flow path 2a, the refolder 2Y, the refolder 2Z, and the other end of the flow path 2b in the flow path forming body 2. have. The first power feeding member 3 connected to the refolder 2Y and the refolder 2Z is connected to an intermediate position at the refolder 2Y and the refolder 2Z.

Here, the fluid heating apparatus 100 alternates the U phase, V phase, and W phase of the three-phase AC power source 5 so that the polarities of the three-phase AC power sources connected to the three first power supply members 3 arranged in series are different from each other. It is configured to be connected to. Specifically, in the order from the one end portion 2a of the flow path forming body 2, W phase is formed on the first second feed member 4, V phase is formed on the second second feed member 4, and so on. The U phase is connected to the third second power feeding member 4. In addition, in this embodiment, although the space is formed between the 2nd electrode 41 and the outer peripheral surface of the flow path forming body 2, the 2nd electrode (which faces the outer peripheral surface of the flow path forming body 2 and this outer peripheral surface ( You may provide an insulation member between 41 and.

In the fluid heating device 100 configured as described above, the U-phase, V-phase, and W of the three-phase alternating current power source are different so that the polarity of the three-phase alternating current power supply 5 connected to three second power feeding members 4 arranged in a row is different. Since the phases are connected, the magnetic fluxes generated by the current flowing through the straight portions 2a to 2c are canceled, and the impedance generated in the flow path forming body 2 can be reduced to improve the circuit power factor. Therefore, the equipment efficiency of the fluid heating apparatus 100 can be improved.

4. Modifications of the first to the third embodiments

In addition, this invention is not limited to said 1st-3rd embodiment. For example, in the said 1st-3rd embodiment, although the 2nd electrode was arrange | positioned along the flow path direction of a flow path formation body in a 2nd power supply member, a 2nd electrode is provided in the other end part of the flow path body of a flow path formation body. You may provide and the 2nd electric wire connected to the 2nd electrode may be arrange | positioned along the flow path direction of a flow path formation body.

6, the insulating heat insulating member 6 may be provided so that the outer peripheral surface of the flow path forming body 2 may be covered. In this way, even if the flow path forming body 2 is energized and heated and temperature rises, the heat radiation to the exterior from the said flow path forming body 2 can be reduced. At this time, the first feed member 3 and the second feed member 4 are connected to the flow path forming body 2 from the outside of the insulating heat insulating member 6. In addition, the flange 21 is formed in the flow path forming body 2 of FIG. 6 as a connection part for connecting with the other flow path forming body 2 at both ends. In addition, the first electrode 31 and the second electrode 41 are connected between the insulating heat insulating member 6 and the flange 21.

6, the 2nd electric wire 42 arrange | positioned along the flow path direction of the flow path formation body 2 has the bare wire 421. In addition, in FIG. In this case, since the second electric wire 42 disposed in contact with the insulating heat insulating member 6 is the bare electric wire 421, the reactance can be reduced while cooling the second electric wire 42.

As shown in FIGS. 7 to 9, the two flow path forming bodies 2 communicate with each other, and the first power feeding member 3 provided in the two flow path forming bodies 2. The fluid heating device 100 may be configured by being connected to the unit by the flange 21 so as to be positioned inside. 7 to 9 show an example in which the fluid heating device 100 is configured by using one of the fluid heating units 10, the plurality of fluid heating units 10 are connected so that their flow paths R communicate with each other. The fluid heating device 100 may be configured to be connected.

In the fluid heating unit 10 of FIG. 7, the first power output (phase V) of the three-phase AC power supply 5 is applied to the two first power supply members 3, and the two second power supply members 4 are applied. The second power output (U phase) of the three-phase AC power supply 5 is applied to one side of the third power output (W phase) of the three-phase AC power supply 5 to the other side of the two second power supply members 4. ) Is applied.

In the fluid heating unit 10 of FIG. 8, one power output of the single-phase alternating current power supply 5 is applied to the two first power supply members 3, and single phases are provided on both sides of the two second power supply members 4. The case where the other power supply output of the AC power supply 5 is applied is shown. In addition, the fluid heating unit 10 is provided with a current control circuit 7 using a thyristor, for example, on a circuit for inputting a power output to the two second power supply members 4.

In the fluid heating unit 10 of FIG. 9, an o-terminal of the Scott connection transformer 51 is connected to the two first power supply members 3 so that an output of the same polarity is applied, and two second power supply members ( The u terminal of the Scott connection transformer 51 is connected to one side of 4), and u phase is applied, and the v terminal of the Scott connection transformer 51 is connected to the other side of the two second feed members 4, and the v phase is connected. Indicates when authorized.

In addition, as shown in FIG. 10, the three flow path forming bodies 2 communicate with each other, and the first power feeding member 3 and the second provided in the three flow path forming bodies 2. The fluid heating device 100 may be configured by being connected to the unit by the flange 21 so that the power feeding member 4 faces the same direction. In addition, although FIG. 10 shows an example in which the fluid heating device 100 is configured by using one of the fluid heating units 10, a plurality of fluid heating units 10 are connected so that their flow paths R communicate with each other. The heating device 100 may be configured. In addition, in FIG. 10, it is set as the 1st flow path formation body, the 2nd flow path formation body, and the 3rd flow path formation body.

In this fluid heating unit 10, the three-phase AC power source 5 is connected to the first feed member 3 of the first flow path forming body 2 and the second feed member 4 of the second flow path forming body 2. ) Is connected to the V-phase, and the three-phase AC power supply 5 is connected to the first feed member 3 of the second flow path forming body 2 and the second feed member 4 of the third flow path forming body 2. W phases of the three-phase AC power supply 5 are connected to the first feed member 3 of the third flow path forming member 2 and the second feed member 4 of the first flow path forming body 2. U phase is connected. With this configuration, the three-phase AC power supply can be connected as it is.

5. Fourth Embodiment

As shown in FIG. 11, the fluid heating apparatus 100 of 4th Embodiment applies an alternating voltage directly to the flow path formation body 2 which consists of electroconductive materials in which the flow path R through which a heated fluid flows flows is formed, and is directly connected. By energizing and heating the flow path forming body 2 by the Joule heat generated by the internal resistance of the flow path forming body 2, the to-be-heated fluid which flows through the said flow path R is heated.

The flow path forming body 2 of the present embodiment is formed of a rough cylindrical straight pipe made of a conductive material. As a result, the flow path R becomes a straight flow path.

The first feed member 3 is connected to the one end portion 2a of the flow path forming member 2, which is the one end side of the flow path forming member 2, and is located on the other end side of the flow path than the first feed member 3 of the flow path forming member 2. The second power feeding member 4 is connected. Then, the first feed member 3 and the second feed member 4 are connected to the first feed member 3 and the second feed member 4 by connecting the output terminals of the single-phase AC power supply 5 to each other. A single phase alternating voltage is applied to the flow path forming body 2 through the channel forming body 2.

The first power feeding member 3 is connected to the first electrode 31 connected to one end portion 2a of the flow path forming member 2 and one side of the single-phase AC power supply 5 connected to the first electrode 31. It consists of a first electric wire 32 connected to the output terminal of. The first electrode 31 is wound around the outer circumferential surface of the flow path forming body 2 and connected by welding or the like.

In addition, the second feed member 4 includes a cover 43 connected to the other end side of the flow path than the first feed member 3 in the flow path forming body 2 and one end of the flow path that is one end of the flow path of the cover 43. It consists of the 2nd electrode 41 connected to the side edge part 43a, and the 2nd electric wire 42 connected to the said 2nd electrode 41, and connected to the other output terminal of the single phase alternating current power supply 5. As shown in FIG. The second electrode 41 is wound around the outer circumferential surface of the covering 43 and connected by welding or the like.

Specifically, the coating body 43 is formed of a rough cylindrical straight pipe made of a conductive material. The covering 43 covers the entire circumference of the outer circumferential surface at one end of the flow path from the other end of the flow path forming body along the outer circumferential surface of the flow path forming body 2. Here, the cover 43 is larger in diameter than the flow path forming body 2 and is disposed coaxially with the flow path forming body 2. That is, the coating body 43 forms a so-called double tube structure together with the flow path forming body 2. Moreover, as shown in FIG. 11, the cover body 43 is electrically connected by welding to the outer peripheral surface of the flow path formation body 2 at the other end side end 43b of a flow path.

Here, the flow path forming body 2 of the present embodiment is formed of a conductive material having higher electrical resistance than the first power feeding member 3 and the second power feeding member 4. Specifically, when the first feed member 3 and the second feed member 4 are formed of copper or oil, the flow path forming member 2 is formed of a conductive material having a higher electrical resistance than copper or oil. It should just be formed, for example, stainless steel, titanium, etc. should just be formed.

In addition, in this embodiment, the other end opening 2z of the flow path forming body 2 communicating with the flow path R is closed by the blocking member 23. And the fluid flow port 22 is provided in the flow path formation body 2 of this embodiment in the flow path other end part 2b which is the other end side of a flow path rather than the connection part with the coating body 43. As shown in FIG. The fluid ejection opening 22 of this embodiment is comprised by the 1 or some slit 22 extended in the direction orthogonal to an axial direction from the outer peripheral surface of the flow path formation body 2. As shown in FIG.

In addition, an insulating member 6 made of a ceramic material is provided between the flow path forming body 2 and the cover 43. Specifically, the insulating member 6 is provided on the outer circumferential surface of the flow path forming body 2 that faces the covering 43. Here, the insulating member 6 may or may not be in contact with the inner circumferential surface of the covering 43. Moreover, the insulating member 6 may be provided in the inner peripheral surface of the coating body 43. By this insulating member 6, the flow path forming body 2 and the covering body 43 can be insulated reliably, and the short circuit in parts other than a connection part can be prevented.

In addition, an outer insulating member 8 made of a ceramic material covering the entire circumference of the outer circumferential surface of the covering 43 is provided on the outer circumferential surface of the covering 43. By the outer insulating member 8, even when the installation object for installing the fluid heating device 100 is made of a conductive member, or becomes conductive by an ejected heated fluid, etc. It can prevent the short circuit.

However, the first feed member 3 and the second feed member 4 are drawn out from the one end 2a of the flow path forming member 2 toward the power source 5. Specifically, the first electrode 31 flows from the flow path end portion 2a of the flow path forming body 2 and the second electrode 41 flows from the flow path end side end 43a of the cover 43 in the flow path direction. It is provided so that it may extend in the direction orthogonal to. In addition, the extending direction of the 1st electrode 31 and the extending direction of the 2nd electrode 41 do not need to be the same direction, for example, may be a direction different from the circumferential direction in the flow path end part 2a.

The flow path forming body 2 configured as described above is provided by being inserted into a storage chamber for accommodating a heated fluid or a processing chamber for processing a workpiece by the heated fluid. Specifically, the part except the flow path end part 2a of the flow path formation body 2 is inserted in the said accommodation chamber or a process chamber, and is provided. Then, the single-phase AC power supply 5 connected to the flow path forming body 2 is provided in a space (for example, a power supply chamber) separate from the accommodation chamber or the processing chamber.

Here, the flow of the heated fluid in the fluid heating device 100 configured as described above will be described. The heated fluid flows in from the opening 2y (the flow path end side) of the flow path forming body 2 communicating with the flow path R, flows while the flow path R inside the flow path forming body 2 is heated, It reaches the other end opening 2z of the flow path formation body 2 which communicates with (R). Here, in the present embodiment, the other end opening 2z is closed by the closing member 23 and the slit 22 is provided in the other end of the flow path 2b, so that the heated fluid is removed from the slit 22. It flows out of the flow path forming body 2, that is, out of the fluid heating device 100. As an example of the heated fluid, it is considered that the heated fluid flowing into the flow path forming body 2 is saturated steam or superheated steam, and the fluid flowing out of the flow path forming body 2 is superheated steam. However, the heated fluid is not limited to a specific fluid, and may be appropriately selected according to the use of the fluid heating device 100.

In the fluid heating apparatus 100 configured as described above, when the single-phase alternating voltage is applied from the single-phase alternating current power supply 5 to the flow path forming body 2 through the first feed member 3 and the second feed member 4, The direction of the current flowing through the flow path forming body 2 in the flow path forming body 2 and the direction of the current flowing through the covering 43 in the second power feeding member 4 are reversed. By doing so, the magnetic fluxes generated by the respective currents are canceled out, the reactances generated in the flow path forming body 2 are reduced, and the circuit power factor can be improved. Therefore, the equipment efficiency of the fluid heating apparatus 100 can be improved.

Moreover, since it can make it eject directly from the fluid ejection opening 22 provided in the flow path formation body 2, it can eject without reducing the temperature of the to-be-heated fluid heated inside the flow path formation body 2. As shown in FIG. In addition, since the covering 43 is made of copper or intrinsic oil, and the flow path forming body 2 is made of a conductive material having a higher electrical resistance than the covering 43, the covering 43 is supplied with electricity. Since the flow path forming body 2 through which the heated fluid flows is heated more efficiently without being heated by heat, the heated fluid can be efficiently brought into a high temperature state.

In addition, since the fluid ejection opening 22 is provided along the circumferential direction on the outer circumferential surface of the flow path forming body 2, for example, the fluid heating device 100 is inserted into the cardiovascular system or the deep hole formed in the workpiece to be made of iron. In this way, by ejecting the heated fluid from the fluid ejection port 22, it is possible to easily form a triiron tetraoxide film on the inner peripheral surface of the object.

6. Modification of Fourth Embodiment

In addition, this invention is not limited to the said 4th Embodiment. For example, as shown in FIG. 12, the insulating member 6 which covers the outer peripheral surface at the other end side of a flow path from the flow path end side of the flow path formation body 2 is provided, and the insulating member in the flow path formation body 2 ( The cover 43 may be formed by winding the tape-shaped metal foil 401 from the outer circumferential surface on the other end side of the flow path to the outer circumferential surface of the insulating member 6 than in 6). In this case, since the coating body 43 can be comprised by the thin tape-shaped metal foil 401, the whole fluid heating apparatus 100 can be made into small dimension.

The cover 43 may not necessarily cover the entire circumference at the outer circumferential surface at the one end side of the flow path from the other end side of the flow path forming body 2. For example, a notch shape or a hole is provided in a part of the coating body 43, or a cross section of the one end side of the flow path 43a or the other end side of the flow path 43b in the coating body 43 is in the flow path direction. It may not be vertical.

The flow path forming body 2 and the covering body 43 are not limited to a cylindrical straight tube shape, but may be polygonal, elliptical or free-formed in cross section. In addition, the flow path forming body 2 and the cover 43 may not have the same shape in cross section, for example, even if the flow path forming body 2 is a rectangular cross section and the cover 43 is elliptical, or the like. do.

In addition, the flow path forming body 2 and the covering body 43 are not limited to a linear shape, but may be bent. For example, when the flow path forming body 2 is bent, the coating body 43 may be formed along the outer peripheral surface in which the flow path forming body 2 is bent.

As shown in FIGS. 13 to 15, the two flow path forming bodies 2 communicate with each other, and the first power feeding member 3 provided in the two flow path forming bodies 2. The fluid heating device 100 may be configured by being connected to the unit by the flange 21 so as to be positioned inside. 13 to 15 show an example in which the fluid heating device 100 is configured by using one of the fluid heating units 10, the flow path R communicates with the plurality of fluid heating units 10. The fluid heating device 100 may be configured to be connected so as to be connected.

In the fluid heating unit 10 of FIG. 13, the first power output (phase V) of the three-phase AC power supply 5 is applied to the two first power supply members 3, and the two second power supply members 4 are applied. The second power output (phase U) of the three-phase AC power supply 5 is applied to one side of the third power output (W phase) of the three phase AC power supply 5 to the other side of the two second power supply members 4. The case where this is applied is shown.

In the fluid heating unit 10 of FIG. 14, one power output of the single-phase alternating current power supply 5 is applied to the two first power supply members 3, and single phases are provided on both sides of the two second power supply members 4. The case where the other power supply output of the AC power supply 5 is applied is shown. In addition, the fluid heating unit 10 is provided with a current control circuit 7 using, for example, a thyristor, on a circuit for inputting a power output to the two second power supply members 4.

In the fluid heating unit 10 of FIG. 15, the o-terminal of the Scott connection transformer 51 is connected to the two first feed members 3 so that an output of the same polarity is applied, and the two second feed members 4 are connected. U terminal of Scott connection transformer 51 is connected to one side of u, and u phase is applied, and v terminal of Scott connection transformer 51 is connected to the other side of two second feed members 4, and v phase is applied. Indicates.

In addition, as shown in FIG. 16, the three flow path forming bodies 2 communicate with each other, and the first power feeding member 3 and the second provided in the three flow path forming bodies 2. The fluid heating device 100 may be configured by connecting the power feeding member 4 by the flange 21 so as to face the same direction and unitizing the unit. In addition, although FIG. 16 shows an example in which the fluid heating device 100 is configured by using three fluid heating units 10, a plurality of fluid heating units 10 are connected so that the flow path R communicates with each other. The heating device 100 may be configured. In FIG. 16, the first flow path forming body, the second flow path forming body, and the third flow path forming body are formed from the left side.

In the fluid heating unit 10, a three-phase alternating current power supply (3) is supplied to the first feed member 3 of the first flow passage forming member 2 and the second feed member 4 of the second flow passage forming body 2. The V-phase of 5) is connected, and the three-phase AC power supply 5 is connected to the first feed member 3 of the second flow path forming body 2 and the second feed member 4 of the third flow path forming body 2. Is connected to the W phase of the third flow path forming body (3) and the three-phase AC power supply (5) to the first feed member (3) of the third flow path forming body (2) and the second feed member (4) of the first flow path forming body (2) U phase of is connected. With this configuration, the three-phase AC power supply 5 can be connected as it is.

Moreover, even if the blocking member 23 is not provided in the other end opening 2z of the flow path formation body 2 which communicates with the flow path R, even if the other end opening 2z of the said flow path formation body 2 is opened. do. In this case, the other end opening 2z of the flow path forming body 2 may be the fluid ejection opening 22. Moreover, when the other end opening 2z of the flow path forming body 2 is used as the fluid ejection opening 22, the fluid ejection nozzle may be attached to the said fluid ejection opening 22 (the other end opening 2z). In this way, by selecting the fluid ejection nozzle according to the application, the heated fluid can be ejected in a predetermined injection range determined by the fluid ejection nozzle.

7. Fifth Embodiment

The fluid heating device 100 according to the fifth embodiment applies an AC voltage directly to a conductive pipe 20 made of a conductive material having a flow path R through which fluid flows, and directly energizes the internal resistance of the conductive pipe 20. The fluid flowing through the flow path R is heated by heating the conductor pipe 20 by the Joule heat generated by the heating.

Specifically, as shown in FIG. 17, the fluid heating device 100 is disposed so that two conductor pipes 20 are parallel to each other, and one end portion 20a that is the fluid introduction side of the two conductor pipes 20. Are electrically connected to each other. Each conductor tube 20 is a cylindrical tube which forms a straight tube shape, and forms the same shape.

Specifically, the one end part 20a of the two conductor pipes 20 is electrically connected by the flow pipe 30 which has electroconductivity. The dividing pipe 30 is connected to one end 20a of the two conductive pipes 20 and flows fluid into the two conductive pipes 20. In addition, in this embodiment, the conductor pipe 20 and the fractionation pipe 30 are integrally comprised. That is, the piping configuration of the fluid heating device 100 of the present embodiment has one fluid inlet port P1 on the upstream side, branched into two flow paths R on the downstream side, and two fluid outlet ports P2. ) Moreover, the flange part is formed in the fluid inlet P1 comprised by the upstream opening of the flow pipe 30, and it is comprised so that connection with an external piping may be possible. Moreover, a flange part is formed in the fluid discharge port P2 comprised by the other end part 20b of the conductor pipe 20, and is comprised so that connection with an external piping is possible.

The single phase alternating current power supply 40 is connected to the other end 20b which is the fluid lead-out side of the two conductor pipes 20. Specifically, the U phase of the single-phase alternating current power supply 40 is connected to one of the other end portions 20b of the two conductor pipes 20, and the single phase is connected to the other side of the other end portions 20b of the two conductor tubes 20. The V phase of the AC power supply 40 is connected. As shown in FIG. 17, the electrode 50 connected to the other end part 20b of each conductor pipe 20 is wound around a part of the outer peripheral surface of the other end part 20b, and is connected by welding etc. These electrodes 50 are provided so as to extend in the direction orthogonal to the arrangement direction of the two conductor tubes 20.

In the fluid heating device 100 configured as described above, when the single-phase AC voltage is applied from the single-phase AC power supply 40 to the conductive pipe 20 through the electrode 50, the direction of the current flowing in one of the conductive pipes 20. And the direction of the current flowing in the other conductor pipe 20 are reversed. By doing so, the magnetic flux generated by each current is canceled, and the impedance generated in the conductor tube 20 can be reduced to improve the circuit power factor. Therefore, the equipment efficiency of the fluid heating apparatus 100 can be improved.

8. Sixth Embodiment

As shown in FIG. 18, the fluid heating device 100 of 6th Embodiment is arrange | positioned so that three conductor pipes 20 may be mutually parallel, and the one end part which is the fluid introduction side of the said three conductor pipes 20. As shown in FIG. 20a are electrically connected to each other. Each conductor tube 20 is a cylindrical tube which forms a straight tube shape, and forms the same shape. In addition, the three conductor tubes 20 are arranged on the same plane at equal intervals.

Specifically, the one end part 20a of the three conductor pipes 20 is electrically connected by the flow pipe 30 which has electroconductivity. The dividing pipe 30 is connected to one end 20a of the three conductive pipes 20 and flows fluid into the three conductive pipes 20. In addition, in this embodiment, the conductor pipe 20 and the fractionation pipe 30 are integrally comprised. That is, the piping configuration of the fluid heating device 100 of the present embodiment has one fluid inlet port P1 on the upstream side, branches into three flow paths on the downstream side, and has three fluid outlet ports P2. . In addition, a flange part is formed in the fluid inlet port P1 and the fluid outlet port P2 similarly to the said 1st Embodiment.

The three-phase alternating current power supply 60 is connected to the other end portion 20b of the three conductor pipes 20, which is the fluid discharge side. Specifically, the U phase of the three-phase AC power supply 60 is connected to the other end 20b of the three conductor pipes 20 from the other end 20b, and the three phases are connected to the second other end 20b. The V phase of the AC power supply 60 is connected, and the W phase of the three-phase AC power supply 60 is connected to the third other end 20b. As shown in FIG. 18, the electrode 70 connected to the other end part 20b of each conductor pipe 20 is wound around a part of the outer peripheral surface of the other end part 20b, and is connected by welding etc. These electrodes 70 are provided to extend in a direction orthogonal to the direction in which the three conductor tubes 20 are arranged.

In the fluid heating device 100 configured as described above, when the three-phase alternating voltage is applied from the three-phase alternating current power supply 60 to the conductive pipe 20 through the electrode 70, the current flows through the three conductive pipes 20. The generated magnetic flux is canceled, and the impedance generated in the conductor tube 20 is reduced, so that the circuit power factor can be improved. Therefore, the equipment efficiency of the fluid heating apparatus 100 can be improved.

9. Modification of the sixth embodiment

Although the three conductor pipes 20 of the said 2nd Embodiment were arrange | positioned at equal intervals on the same plane, as shown in FIG. 19, the three conductor pipes 20 are arrange | positioned so that they may be located at three vertices of a triangle. It may be one. Moreover, in this case, the electrode 70 provided in the other end part 20b of each conductor pipe 20 is provided so that it may radially extend outside the triangle, for example. By providing the electrode 70 radially in this way, wiring can be facilitated and a short circuit is prevented.

10. Seventh Embodiment

As shown in FIG. 20, the fluid heating device 100 of 7th Embodiment is arrange | positioned so that two conductor pipes 20 may be mutually parallel, and the one end part which is the fluid introduction side of the said two conductor pipes 20. As shown in FIG. 20a are electrically connected to each other. Each conductor tube 20 is a cylindrical tube which forms a straight tube shape, and forms the same shape.

Specifically, the one end part 20a of the two conductor pipes 20 is electrically connected by the flow pipe 30 which has electroconductivity. The dividing pipe 30 is connected to one end 20a of the two conductive pipes 20 and flows fluid into the two conductive pipes 20. In addition, in this embodiment, the conductor pipe 20 and the fractionation pipe 30 are integrally comprised.

Moreover, the other end part 20b of the two conductor pipes 20 is occluded, and the several fluid ejection openings (a between the one end part 20a and the other end part 20b) are carried out in the middle of the conductor pipe 20. 20x) is formed. The plurality of fluid ejection ports 20x may be formed in the entire circumferential direction on the sidewall of the conductor pipe 20 or may be formed on one side of the conductor pipe 20 orthogonal to the arrangement direction. In addition, in FIG. 20, although the some fluid ejection opening 20x is formed in the substantially whole of the longitudinal direction from one end part 20a to the other end part 20b in a side wall, it is a part of a longitudinal direction, for example, a conductor pipe ( You may form in the other end part 20b from the longitudinal center part of 20).

As described above, the piping configuration of the fluid heating device 100 of the present embodiment has one fluid inlet P1 on the upstream side, branched into two flow paths R on the downstream side, and each flow path ( It is comprised so that the fluid heated by R may be sprayed through the some fluid ejection opening 20x.

Then, the single-phase AC power supply 40 is connected to the other closed end 20b of the two conductor pipes 20. Specifically, the U phase of the single-phase alternating current power supply 40 is connected to one of the other end portions 20b of the two conductor pipes 20, and the single phase is connected to the other side of the other end portions 20b of the two conductor tubes 20. The V phase of the AC power supply 40 is connected. As shown in FIG. 20, the electrode 50 connected to the other end part 20b of each conductor pipe 20 is a shape along the outer peripheral surface of the conductor pipe 20, and the other of the said conductor pipe 20 is carried out. It extends in the longitudinal direction outer side rather than the edge part 20b. Specifically, the conductor tube 20 is a round tube, and the electrode 50 is a semi-cylindrical shape having a partial cylindrical shape. This electrode 50 is connected to the other end 20b of the conductor tube 20 by welding or the like. In this way, since the electrode 50 forms a semi-cylindrical shape and extends along the longitudinal direction of the conductor tube 20, the conductor tube 20 is inserted into and used in an accommodation container that forms a housing chamber for receiving heated fluid. For example, the electrode 50 is not disturbed when the conductor tube 20 is attached to or removed from the housing.

In the fluid heating device 100 configured as described above, when the single-phase AC voltage is applied from the single-phase AC power supply 40 to the conductive pipe 20 through the electrode 50, the direction of the current flowing in one of the conductive pipes 20. And the direction of the current flowing in the other conductor pipe 20 are reversed. By doing so, the magnetic flux generated by each current is canceled, and the impedance generated in the conductor tube 20 can be reduced to improve the circuit power factor. Therefore, the equipment efficiency of the fluid heating apparatus 100 can be improved. In addition, since a plurality of fluid ejection openings 20x are formed between one end portion 20a of the conductor tube 20 and the other end portion 20b that is closed, it is easy to use when the heated fluid is dispersed and used. have.

11. 8th Embodiment

As shown in FIG. 21, the fluid heating device 100 of 8th Embodiment is arrange | positioned so that three conductor pipes 20 may be mutually parallel, and the one end part which is the fluid introduction side of the said three conductor pipes 20. As shown in FIG. 20a are electrically connected to each other. Each conductor tube 20 is a cylindrical tube which forms a straight tube shape, and forms the same shape. In addition, the three conductor tubes 20 are arranged on the same plane at equal intervals.

Specifically, the one end part 20a of the three conductor pipes 20 is electrically connected by the flow pipe 30 which has electroconductivity. The dividing pipe 30 is connected to one end 20a of the three conductive pipes 20 and flows fluid into the three conductive pipes 20. In addition, in this embodiment, the conductor pipe 20 and the fractionation pipe 30 are integrally comprised.

Moreover, the other end part 20b of the three conductor pipe | tubes 20 is occluded, and several fluid ejection openings (a plurality of fluid outlet ports are formed in the side wall of the middle of the conductor pipe 20 (between one end part 20a and the other end part 20b). 20x) is formed. The plurality of fluid ejection ports 20x may be formed in the entire circumferential direction on the sidewall of the conductor pipe 20 or may be formed on one side of the conductor pipe 20 orthogonal to the arrangement direction. In addition, in FIG. 21, although the some fluid ejection opening 20x is formed in the substantially whole of the longitudinal direction from one end part 20a to the other end part 20b in the side wall, it is a part of a longitudinal direction, for example, a conductor pipe ( You may form in the other end part 20b from the longitudinal center part of 20).

As described above, the piping configuration of the fluid heating device 100 of the present embodiment has one fluid inlet P1 on the upstream side, branches into three flow passages R on the downstream side thereof, and each flow path R ) And ejects the heated fluid through a plurality of fluid ejection openings 20x.

12. Modifications of the eighth embodiment

Although the three conductor tubes 20 of the said 4th Embodiment were arrange | positioned at equal intervals on the same plane, similarly to the modification of the said 2nd Embodiment, as shown in FIG. 22, the three conductor tubes 20 are shown. ) May be located at the three vertices of the triangle.

13. Other Modified Embodiments

In addition, this invention is not limited to the said 5th-8th embodiment. For example, in the said 5th-8th embodiment, although the conductor pipe | tube 20 and the fractionation pipe | tube 30 were comprised integrally, the conductor pipe | tube 20 and the fractionation pipe | tube 30 were used as a separate member, and they were flanged. It may be connected and configured through.

In addition, in the said 5th Embodiment and the 7th Embodiment, the fluid heating apparatus 100 which has two conductor pipes 20 was demonstrated, As shown in FIG. 23, 2N pieces (N is an integer of 2 or more). It may have a conductor tube 20 of. In addition, FIG. 23 exemplifies a fluid heating device 100 having four conductor tubes 20. As shown in FIG. Then, one end 20a of the 2N conductor pipes 20 is electrically connected by connecting a single split pipe 30 branched into a 2N flow path. Moreover, in the other end part 20b of 2N conductor pipe 20, the U phase of the single phase ac power supply 40 so that the polarity of the single phase alternating current power supply 40 connected to the other end part 20b which adjoins mutually is different. And V phases are alternately connected. In FIG. 23, the other end part 20b of the four conductor pipes 20 is connected so that it may become U phase, V phase, U phase, and V phase in order from the top.

Even in such a case, since the currents flowing through the adjacent conductive pipes 20 are reversed to each other, the magnetic fluxes generated by the respective currents cancel each other out, and the impedance generated in the conductive pipes 20 is reduced to reduce the circuit power factor. It can be improved. Therefore, the equipment efficiency of the fluid heating apparatus 100 can be improved. In addition, by increasing the number of the conductive pipes 20, the heated fluid can be increased in capacity. In addition, by forming a plurality of fluid ejection openings 20x in the 2N conductor pipes 20, the ejection area of the heated fluid can be enlarged, whereby the fluid can be diffused in a wide range.

In addition, although FIG. 23 shows that the other end part 20b of the conductor pipe 20 is closed and the some fluid ejection opening 20x was formed in the middle of the conductor pipe 20, similarly to 1st Embodiment, The other end 20b of the conductor pipe 20 may be opened to form the fluid outlet port without having the fluid outlet port 20x.

In addition, although the fluid heating apparatus 100 which has three conductor pipes 20 was demonstrated in the said 6th embodiment and 8th embodiment, as shown in FIG. 24, 3N pieces (N is an integer of 2 or more). It may have a conductor pipe 20. In addition, in FIG. 24, the fluid heating apparatus 100 which has six conductor pipes 20 is illustrated. The single flow pipe 30 branched into the 3N flow path is electrically connected to one end 20a of the 3N conductor pipes 20 by electrically connecting them. Moreover, in the other end part 20b of 3N conductor tubes 20, the three phase alternating current power supply 60 is different so that the polarity of the three phase alternating current power supply 60 connected to three other end parts 20b arranged in a row may differ, respectively. U phases, V phases, and W phases are alternately connected. In FIG. 24, the other end part 20b of the six conductor pipes 20 is connected so that it may become W phase, V phase, U phase, W phase, V phase, and U phase from the top.

Even in such a case, since the U phase, the V phase, and the W phase of the three-phase AC power source 60 are connected so that the polarities of the three-phase AC power source 60 connected to the three other end portions 20b continuously arranged are different. The magnetic flux generated by the current flowing through the three conductive pipes 20 arranged in a row is canceled, and the impedance generated in the conductive pipe 20 is reduced to improve the circuit power factor. Therefore, the equipment efficiency of the fluid heating apparatus 100 can be improved. In addition, by increasing the number of the conductive pipes 20, the heated fluid can be increased in capacity. In addition, by forming a plurality of fluid ejection openings 20x in the 3N conductor pipes 20, the ejection area of the heated fluid can be increased, whereby the fluid can be diffused in a wide range.

In addition, although FIG. 24 shows that the other end part 20b of the conductor pipe 20 is closed and the some fluid ejection opening 20x was formed in the middle of the conductor pipe 20, similarly to 2nd Embodiment, The other end 20b of the conductor pipe 20 may be opened to form the fluid outlet port without having the fluid outlet port 20x.

In addition, as shown in FIGS. 25 and 26 when a plurality of fluid ejection openings 20x are formed in the conductor pipe 20 as in the fluid heating apparatus 100 of the seventh and eighth embodiments. In addition, the fluid heating device 100 may have a heat storage container 80 that forms a storage chamber for receiving and keeping the heated fluid ejected from the fluid ejection port 20x of the conductor pipe 20. Specifically, the conductor pipe 20 is inserted and provided so as to penetrate the left and right side walls 801 and 802 of the heat insulating container 80. At this time, the conductor pipe 20 is inserted into the left and right sidewalls 801 and 802 of the thermal insulation container 80, between the left and right sidewalls 801 and 802, that is, the sealed interior of the thermal insulation container 80. A plurality of fluid ejection openings 20x are formed in a portion located in the space. Moreover, the electrode 50 connected to the said conductor pipe 20 is located in the outer side of the heat insulation container 80 in the state in which the conductor pipe 20 was inserted in the heat insulation container 80. As shown in FIG. In addition, this electrode 50 forms a semi-cylindrical shape like the said 3rd Embodiment. As a result, only the holes for passing the conductor tube 20 in the left and right side walls 801 and 802 of the thermal insulation container 80 can be easily attached and detached from the conductor tube 20 provided with the electrode 50. Can be. That is, when the conductor pipe 20 is inserted into the insulating container 80 and mounted thereon, and when the conductor tube 20 is removed from the insulating container 80, the electrode 50 is left and right side walls 801, The interference with 802 can be prevented. In addition, the single phase AC power supply 40 connected to the conductor pipe 20 is provided in the power supply chamber PR provided in the exterior of the said heat insulation container 80. As shown in FIG. As described above, the single-phase AC power supply 40 provided in a space different from the heat insulating container 80 is electrically connected to the electrode 50 of the conductive pipe 20 by electric wiring.

The heated fluid contained in the heat storage container 80 is drawn out from the fluid discharge port (not shown) provided in the heat storage container 80 and used. In addition, although the case where the storage chamber was formed by the heat insulation container was demonstrated above, in addition, even if it is formed by the heating container which has a heating mechanism for further heating the fluid heated by the conductor pipe 20 as a storage chamber. It may be formed by a temperature control vessel having a temperature control function for temperature control of the heated fluid. In addition to the accommodation chamber, the conductor pipe 20 may be provided by being inserted into a processing chamber for processing a heated object by heated fluid. Here, the object to be treated is considered to be configured to be continuously conveyed to the processing chamber by a conveying mechanism such as a conveying belt.

In addition, in the said 5th-8th embodiment, although the single flow pipe 30 was connected to the one end part 20a of the some conductor pipe 20, and the fluid inlet P1 was one, it is shown in FIG. As shown, each one end 20a of the plurality of conductor pipes 20 may be opened to have a plurality of fluid inlets P1. In this case, one end portion 20a of the plurality of conductor pipes 20 is electrically connected by the conductive member 90.

In addition, as shown in FIG. 28, you may comprise the conductor pipe 20 by connecting several element pipe 20m in series. In this case, each urea pipe 20m is provided with connection parts, such as a flange part, for connecting to the other urea pipe 20m. In this way, the fluid heating apparatus 100 which has a flow path of a desired length can be comprised by connecting several element piping 20m.

In addition, as shown in FIG. 29, the plurality of fluid ejection nozzles 201 may be provided on the side wall of the conductor pipe 20 (between the one end 20a and the other end 20b). The plurality of fluid ejection nozzles 201 may be formed in the entire circumferential direction on the side wall of the conductor pipe 20 or may be formed on one side of the conductor pipe 20 orthogonal to the array direction. . In addition, although the some fluid ejection nozzle 201 is provided in the side wall at equal intervals from one end part 20a to the other end part 20b in a side wall, it is not limited to this. In addition, although FIG. 29 shows the case where it is applied to the fluid heating apparatus 100 which has two conductor pipes 20 similar to the said 5th embodiment, the other three conductor pipes (same as the said 6th embodiment ( 20 may be applied to the fluid heating device 100 having the same, or may be applied to the fluid heating device 100 having the conductor tube 20 in which the other end 20b as in the seventh and eighth embodiments is closed. . Moreover, you may apply to the fluid heating apparatus 100 which has 2N or 3N conductors (N is an integer of 2 or more). If the fluid ejection nozzle 201 is provided in this manner, the fluid ejection nozzle 201 can be selected in accordance with the application so that the heated fluid can be ejected in a predetermined injection range determined by the fluid ejection nozzle.

14. Ninth Embodiment

The fluid heating device 100 of the ninth embodiment applies an AC voltage directly to the flow path forming body 2 made of a conductive material having a flow path R through which a heated fluid flows, thereby directly conducting electricity to the flow path forming body 2. The heated fluid flowing through the flow path R is heated by heating the flow path forming body 2 by the Joule heat generated by the internal resistance of.

As shown in FIG. 30, the flow path forming body 2 of this embodiment is formed with the pipe of a substantially cylindrical straight tube shape. Thereby, the flow path R turns into one flow path of linear form. The flow path forming body 2 is made of a conductive material having a higher electrical resistance than copper, and may be formed of, for example, stainless steel or titanium. Moreover, the flange part 21 is formed in the 1st flow port P1 which is the opening of the end of the flow path formation part 2 at the one end part 2a side of the flow path formation body 2, and is comprised so that connection with an external piping is possible. . Similarly, the flange part 21 is formed in the 2nd flow port P2 which is the other end opening of the flow path forming body 2 at the other end part 2b side, and is comprised so that connection with an external piping is possible. .

Five flow path electrodes 3z are connected to the flow path forming body 2 at positions approximately equal to four in the flow path direction of the flow path R in the flow path forming body 2. Two of these five electrodes 3z are connected to one end of the flow path 2a and the other end of the flow path 2b. These electrodes 3z are connected to the output terminals of the single-phase AC power supply, and the U and V phases of the single-phase AC power supply are alternately connected so that the polarities of the single-phase AC power sources connected to the adjacent electrodes 3z are different. . Specifically, it is connected so that it may become a U phase, a V phase, a U phase, a V phase, and a U phase in order from the electrode 3z at the side of the flow path one end 2a. In addition, the order of the U phase and V phase of the single phase alternating current power supply connected to the electrode 3z is not limited to what is shown in FIG. 30, and the U phase and V phase may be reversed.

Here, the number of electrodes 3z is not limited to five, but is connected to the position which is divided into 2n equal parts (n is an integer of 1 or more) along the flow path direction of the flow path R in the flow path forming body 2 here. do. For example, as in the present embodiment, when the electrodes 3z are respectively connected to the one end of the flow path 2a and the other end of the flow path 2b, 2n + 1 electrodes 3z may be connected.

Moreover, the some fluid ejection opening 22 is provided in the outer peripheral surface of the middle of the flow path formation body 2 (between one end part 2a and the other end part 2b). The fluid ejection openings 22 are arranged in equal numbers between the respective electrodes 3z so as to face one direction side (downward in FIG. 30) orthogonal to the flow path direction at the outer circumferential surface of the flow path forming body 2. It is. In the present embodiment, four fluid ejection openings 22 are arranged between each electrode 3z. In addition, each fluid ejection port 22 of the present embodiment is equipped with a fluid ejection nozzle 24. The fluid ejection port 22 may be formed in the entire circumferential direction on the outer circumferential surface of the flow path forming body 2. In addition, although the fluid ejection opening 22 of this embodiment is formed in the substantially whole whole length direction from the flow path end part 2a to the flow path other end part 2b in the outer peripheral surface of the flow path formation body 2, it is a longitudinal direction. May be formed at the other end 2b from the central portion in the longitudinal direction of the flow path forming body 2, for example.

Here, the flow of the heated fluid in the fluid heating device 100 will be described. The heated fluid flows in from the first distribution port P1 of the flow path forming body 2 communicating with the flow path R, flows while the flow path R inside the flow path forming body 2 is heated, and flow path R It reaches the 2nd flow port P2 of the flow path formation body 2 which communicates with. A portion of the heated fluid passes through the fluid jet port 22 and the fluid jet nozzle 24 from the first outlet port P1 to the second outlet port P2, thereby allowing the fluid heating device 100 to flow. Ejected out of. In addition, one of the first distribution port P1 or the second distribution port P2 is blocked, and the heated fluid is introduced from the other of the first distribution port P1 or the second distribution port P2. All of the heated fluid may be ejected from the fluid ejection port 22 and the fluid ejection nozzle 24 to the outside. In addition, the heated fluid flows in from both the first flow port P1 and the second flow port P2 so that all of the heated fluid is external from the fluid jet port 22 and the fluid jet nozzle 24. May be ejected. Further, as an example of the heated fluid, it is considered that the heated fluid flowing into the flow path forming body 2 is saturated steam or superheated steam, and the heated fluid flowing out of the flow path forming body 2 is superheated steam. However, the heated fluid is not limited to a specific fluid, and may be appropriately selected according to the use of the fluid heating device 100.

In the fluid heating apparatus 100 configured as described above, when the single-phase alternating current voltage is applied to the flow path forming body 2 through each electrode 3z from the single-phase alternating current power source, the phases of the currents flowing between the adjacent electrodes 3z are different. Since these are reversed from each other, the magnetic flux generated by the respective currents cancels out, the impedance generated in the flow path forming body 2 is reduced, and the circuit power factor can be improved. Therefore, the heated fluid can be efficiently heated, and the equipment efficiency of the fluid heating device 100 can be improved.

15. Modifications of the ninth embodiment

In addition, the fluid heating apparatus 100 of 9th Embodiment is not limited to the structure in which the flow path formation body 2 is formed only by one linear part, and may have a plurality of linear parts. Specifically, as shown in FIG. 31, you may have three linear parts 25 provided with the some fluid ejection opening 22 in the outer peripheral surface, for example. Specifically, the three straight portions 25 are connected to each other by a conductive connection portion 26 at the other end portion 2b of the flow path, and the flow path forming body 2 is formed by the straight portion 25 and the connection portion 26. Consists of. That is, the piping configuration of this fluid heating device 100 has three first flow ports P1 on one end of the flow path 2a, and one second flow port P2 on the other end of the flow path 2b. Has The connecting portion 26 joins three flow paths into one flow path when the heated fluid flows from one end of the flow path 2a toward the other end of the flow path 2b, and the heated fluid flows from the other end of the flow path 2b. When flowing toward the one end of the flow path 2a, one flow path is classified into three flow paths.

Thus, even in the case where there are a plurality of straight portions 25, the position which divides 2n equally along the flow path direction of the flow path R between the one end part 2a of the flow path in the flow path forming body 2, and the other end of the flow path 2b. It is preferable that the electrode 3z is arrange | positioned at. For example, in the fluid heating device 100 of FIG. 31, each of the straight portions 25 is disposed substantially parallel on the same plane. The electrode 3z is connected to a position that is roughly divided into four along the flow path direction of the flow path R when viewed along the arrangement direction of the straight portion 25 (from below in FIG. 31). Moreover, the some electrode 3z connected to the linear part 25 is connected in the substantially same position along the flow direction of the electrode 3z and the flow path R connected to the linear part 25 adjacent to each other, respectively. . In addition, the linear part 25 is not limited to three, two may be sufficient, and four or more may be sufficient as it. Moreover, each linear part 25 may be arrange | positioned substantially radially, for example, arrange | positioned radially.

16. Tenth Embodiment

In the fluid heating apparatus 100 of the tenth embodiment, the arrangement of the electrodes 3z is changed, and the power source connected to the electrodes 3z is changed from the single-phase AC power source to the three-phase AC power source. In addition, the piping structure of the fluid heating apparatus 100 is the same as that of 1st Embodiment.

In the fluid heating apparatus 100 of this embodiment, as shown in FIG. 32, seven electrodes 3z are connected to the position which is divided roughly 6 equally along the flow path direction of the flow path R in the flow path formation body 2. As shown in FIG. It is. Two of these seven electrodes 3z are connected to one end of the flow path 2a and the other end of the flow path 2b. The electrodes 3z are connected to the output terminals of the three-phase AC power supply, and the U, V, and W phases of the three-phase AC power supply are different so that the polarities of the three-phase AC power supply connected to the three electrodes 3z arranged in series are different. The images are alternately connected. Specifically, it is connected so that it may become U phase, V phase, W phase, U phase, V phase, W phase, and U phase in order from the electrode 3z at the side of the flow path one end 2a. In addition, the order of the U phase, V phase, and W phase of the three-phase alternating current power supply connected to the electrode 3z is not limited to the thing of FIG. 32, The polarity of the three-phase alternating current power supply connected to the three electrodes 3z arranged in a row is respectively, respectively. It should just be connected to the flow path formation body 2 so that it may differ.

Here, the number of electrodes 3z is not limited to seven, but is connected to the position which is divided into 3n equal parts (n is an integer of 1 or more) along the flow path direction of the flow path R in the flow path formation body 2 here. do. For example, as in the present embodiment, when the electrodes 3z are respectively connected to the one end of the flow path 2a and the other end of the flow path 2b, 3n + 1 may be connected.

Moreover, the some fluid ejection opening 22 is provided in the outer peripheral surface of the middle of the flow path formation body 2 (between one end part 2a and the other end part 2b). The fluid ejection opening 22 of this embodiment is each between each electrode 3z so that it may face to the one direction side (downward in FIG. 32) orthogonal to the flow path direction in the outer peripheral surface of the flow path formation body 2. As shown in FIG. It is arranged four by one. In addition, each fluid jet port 22 of the present embodiment is equipped with a fluid jet nozzle 24 extending along the opening direction of the fluid jet port 22. The fluid ejection port 22 may be formed in the entire circumferential direction on the outer circumferential surface of the flow path forming body 2. In addition, although the fluid ejection opening 22 of this embodiment is formed in the substantially whole whole length direction from the flow path end part 2a to the flow path other end part 2b in the outer peripheral surface of the flow path formation body 2, it is a longitudinal direction. May be formed at the other end 2b from the central portion in the longitudinal direction of the flow path forming body 2, for example. In addition, the number of the fluid jet ports 22 is not limited to the thing of this embodiment, What is necessary is just to arrange | position the appropriate number of fluid jet ports 22 according to the use of the fluid heating apparatus 100. FIG.

The flow of the heated fluid in the fluid heating device 100 is the same as in the first embodiment. In addition, one of the first distribution port P1 or the second distribution port P2 is blocked, and the heated fluid is introduced from the other of the first distribution port P1 or the second distribution port P2. All of the heated fluid may be ejected from the fluid ejection port 22 and the fluid ejection nozzle 24 to the outside. In addition, the heated fluid flows in from both the first flow port P1 and the second flow port P2 so that all of the heated fluid is external from the fluid jet port 22 and the fluid jet nozzle 24. May be ejected.

In the fluid heating device 100 configured as described above, when a three-phase alternating voltage is applied to the flow path forming body 2 through each electrode 3z from a three-phase alternating current power source, a current flowing between three consecutive electrodes 3z arranged in a row. Since the phases of? Are different from each other by 120 °, the magnetic fluxes generated by the respective currents are canceled, and the impedance generated in the flow path forming body 2 can be reduced to improve the circuit power factor. Therefore, the heated fluid can be efficiently heated, and the equipment efficiency of the fluid heating device 100 can be improved.

17. Modifications of the tenth embodiment

In addition, the fluid heating apparatus 100 of 10th Embodiment is not limited to the structure in which the flow path formation body 2 is formed only by one linear part 25, and may have two or more linear parts 25. As shown in FIG. Specifically, as shown in FIG. 33, you may have three linear parts 25 provided with the some fluid ejection opening 22 in the outer peripheral surface, for example. In addition, the piping structure of the fluid heating device 100 in this form attaches | subjects the same code | symbol to the structure same or corresponding to the fluid heating device 100 of FIG. 31 similarly to FIG. Thus, even in the case where there are a plurality of straight portions 25, a position that divides 3n equally along the flow path direction of the flow path R between the one end 2a of the flow path in the flow path forming body 2 and the other end of the flow path 2b. It is preferable that the electrode 3z is arrange | positioned at. For example, in the case of the fluid heating device 100 of FIG. 33, each of the straight portions 25 is disposed substantially parallel on the same plane and along the arrangement direction of each of the straight portions 25 (from the bottom in FIG. 33). When viewed, the electrode 3z is connected to a position that is divided roughly into six along the flow path direction of the flow path R. As shown in FIG.

18. Eleventh Embodiment

As shown in FIG. 34, the fluid heating apparatus 100 of 11th Embodiment applies an alternating current voltage directly to the flow path formation body 2 which consists of electroconductive material in which the flow path R through which a heated fluid flows flows was formed. By energizing and heating the flow path forming body 2 by the Joule heat generated by the internal resistance of the flow path forming body 2, the to-be-heated fluid which flows through the said flow path R is heated.

The flow path forming body 2 according to the present embodiment has six straight portions 25 that form straight flow paths disposed substantially parallel to each other, and one that meanders by connecting the ends of the straight portions 25 adjacent to each other. Five retracting portions 27 forming the flow path R are provided. Here, the six straight parts 25 of this embodiment are arrange | positioned at equal intervals so that they may become mutually substantially parallel with each other on the same plane, and are substantially the same length. In addition, the retracting portion 27 is configured in a 'co' shape or a 'U' shape, and the one end portion and the other end portion of each straight portion 25 are connected to the other straight portion 25 respectively. do. Moreover, the flange part 21 is formed in the 1st flow port P1 comprised in the flow path end part 2a of the flow path formation body 2, and is comprised so that connection with an external piping is possible. Similarly, the flange part 21 is formed in the 2nd flow port P2 comprised in the other end part 2b of the flow path formation body 2, and is comprised so that connection with an external piping is possible.

34, the electrode 3z is connected to the flow path formation body 2 to the flow path end part 2a, the flow path other end part 2b, and a part of the refold part 27. As shown in FIG. The electrodes 3z are connected so that there are an even number of straight portions 25 forming two flow paths R between the electrodes 3z adjacent to each other along the flow path direction of the flow path R, in this embodiment, two. have. Therefore, in this embodiment, the flow path one end part 2a, the flow path other end part 2b, and the two retracting parts 27 located in the flow path end part 2a and the flow path other end part 2b side in plan view. The electrode 3z is connected to four places with).

In addition, the electrodes 3z are connected to the output terminals of the single-phase AC power supply, and the U and V phases of the single-phase AC power supply are alternately connected so that the polarities of the single-phase AC power sources connected to the adjacent electrodes 3z are different. have. Specifically, it is connected so that it may become V phase, U phase, V phase, and U phase in order from the electrode 3z at the side of the flow path one end 2a. In addition, the order of the U phase and V phase of the single phase alternating current power supply connected to the electrode 3z is not limited to what is shown in FIG. 34, and the U phase and V phase may be reversed.

Moreover, the some fluid ejection opening 22 is provided in the outer peripheral surface of the middle of the flow path formation body 2 (between one end part 2a and the other end part 2b). The fluid ejection openings 22 of the present embodiment each have four straight portions 25 so as to face one direction side (lower in FIG. 34) orthogonal to the flow direction in the outer circumferential surface of the flow path forming body 2. It is arranged one by one. In addition, each fluid ejection port 22 of the present embodiment is equipped with a fluid ejection nozzle 24. The fluid ejection port 22 may be formed in the entire circumferential direction on the outer circumferential surface of the flow path forming body 2. In addition, although the fluid ejection opening 22 of this embodiment is formed in the substantially whole whole length direction from the flow path end part 2a to the flow path other end part 2b in the outer peripheral surface of the flow path formation body 2, it is a longitudinal direction. May be formed at the other end 2b from the central portion in the longitudinal direction of the flow path forming body 2, for example.

Here, the fluid heating apparatus 100 of this embodiment closes one of the 1st flow port P1 or the 2nd flow port P2, and the 1st flow port P1 or the 2nd flow port P2 of FIG. The heated fluid may be introduced from the other side, and all the heated fluid may be ejected from the fluid ejection port 22 and the fluid ejection nozzle 24 to the outside. In addition, the heated fluid flows in from both the first flow port P1 and the second flow port P2 so that all of the heated fluid is external from the fluid jet port 22 and the fluid jet nozzle 24. You may make it blow out. In addition, as shown in FIG. 34, when the intermediate piping part 28 for flowing a to-be-heated fluid into the flow path R is connected to the 1 or some refold part 27, 1st distribution port P1 is carried out. ) And the second flow port P2 are closed, and the heated fluid is introduced from the intermediate pipe portion 28 so that all of the heated fluid is filled with the fluid ejection port 22 and the fluid ejection nozzle 24. You may make it blow out from the exterior. In addition, it is considered to provide a check valve or a flow rate adjusting valve in the above-described intermediate pipe portion 28.

In the fluid heating device 100 configured as described above, when a single phase alternating current voltage is applied to the flow path forming body 2 through each electrode 3z from the single phase alternating current power source, the current flowing between the adjacent linear portions 25 is mutually reduced. Since the phases are reversed from each other, the magnetic fluxes generated by the respective currents cancel each other, so that the impedance generated in the flow path forming body 2 can be reduced to improve the circuit power factor. Therefore, the heated fluid can be efficiently heated, and the equipment efficiency of the fluid heating device 100 can be improved.

19. Twelfth Embodiment

In the fluid heating device 100 of the twelfth embodiment, the arrangement of the electrodes 3z is changed, and the power source connected to the electrodes 3z is changed from the single-phase AC power source to the three-phase AC power source. In addition, the piping structure of the fluid heating apparatus 100 is the same as that of 3rd Embodiment.

In the fluid heating device 100 of the present embodiment, as shown in FIG. 35, the one end of the flow path 2a, the other end of the flow path 2b, and the entire back portion 27 of the flow path forming body 2 are shown in FIG. 35. Is connected to the electrode 3z. In addition, the electrode 3z does not necessarily need to be connected to all the refold parts 27, and the electrode 3z may be connected to some of the refold parts 27.

Each electrode 3z is connected to an output terminal of a three-phase alternating current power supply, and the U-phase and V-phase of the three-phase alternating current power supply are different so that the polarity of the three-phase alternating current power supply connected to three electrodes 3z arranged in series is different. And W phases are alternately connected. Specifically, it is connected so that it may become U phase, W phase, V phase, U phase, W phase, V phase, and U phase in order from the electrode 3z at the side of the flow path one end 2a. In addition, the order of the U phase, V phase, and W phase of the three-phase alternating current power supply connected to the electrode 3z is not limited to the thing of FIG. 35, The polarity of the three-phase alternating current power supply connected to the three electrodes 3z arranged in a row is respectively, respectively. It should just be connected to the flow path formation body 2 so that it may differ.

Moreover, the some fluid ejection opening 22 is provided in the outer peripheral surface of the middle of the flow path formation body 2 (between one end part 2a and the other end part 2b). The fluid ejection openings 22 of the present embodiment each have five straight portions 25 so as to face one direction side (downward in FIG. 35) orthogonal to the flow direction in the outer circumferential surface of the flow path forming body 2. It is arranged one by one. In addition, each fluid jet port 22 of the present embodiment is equipped with a fluid jet nozzle 24 extending along the opening direction of the fluid jet port 22. The fluid ejection port 22 may be formed in the entire circumferential direction on the outer circumferential surface of the flow path forming body 2. In addition, although the fluid ejection opening 22 of this embodiment is formed in the substantially whole whole length direction from the flow path end part 2a to the flow path other end part 2b in the outer peripheral surface of the flow path formation body 2, it is a longitudinal direction. May be formed at the other end 2b from the central portion in the longitudinal direction of the flow path forming body 2, for example.

Here, the fluid heating device 100 of the present embodiment closes the second flow port P2, flows the heated fluid from the first flow port P1 of the flow path forming body 2, and supplies the heated fluid. The fluid to be ejected from the fluid ejection port 22 may be introduced, and the heated fluid is introduced from both of the first flow port P1 and the second flow port P2 of the flow path forming body 2, and the heated fluid is supplied to the fluid. The jet may be ejected from the jet port 22. In addition, as shown in FIG. 35, when the flange part 28 for injecting a heated fluid further into the one or the plurality of refolding portions 27 is provided, the first flow port P1 and the second flow path are provided. Both sides of the sphere P2 may be blocked to eject the heated fluid from the fluid ejection port 22.

In addition, it is preferable that the above-mentioned flange portion 28 is provided with a check valve, a flow rate adjusting valve, or the like.

In the fluid heating apparatus 100 configured as described above, when three-phase alternating current voltage is applied from the three-phase alternating current power source 5 to the flow path forming body 2 through each electrode 3z, three straight portions 25 are continuously lined up. Since the phases of the currents flowing between the phases differ from each other by 120 °, the magnetic fluxes generated by the respective currents cancel each other, so that the impedance generated in the flow path forming body 2 can be reduced to improve the circuit power factor. Therefore, the heated fluid can be efficiently heated, so that the equipment efficiency of the fluid heating device 100 can be improved.

20. Modifications of the twelfth embodiment

In addition, this invention is not limited to the said 10th-12th embodiment. For example, a power control device may be provided between each electrode 3z, and the power applied to the electrode 3z may be configured to be controllable. In this way, the temperature of the flow path formation body 2 between every electrode 3z can be controlled individually, and a heated fluid can be made into a desired state efficiently.

Alternatively, the fluid jet 22 may be directly ejected from the fluid jet port 22 without the fluid jet nozzle 24 attached to the fluid jet port 22. In this case, the shape of the fluid ejection port 22 may be a substantially circular shape, or may be an elongate slit shape. Thus, the shape of the fluid ejection opening 22, the arrangement place in the flow path forming body 2, the presence or absence of the fluid ejection nozzle 24, etc. may be suitably selected according to the use of the fluid heating apparatus 100. FIG.

In addition, the two flow path forming bodies 2 are connected by the flange portion 21 so that the flow paths R communicate with each other and the electrodes 3z provided in the two flow path forming bodies 2 are located inside. The unit may be unitized to form the fluid heating device 100.

In addition, this invention is not limited to said 1st-12th embodiment, Needless to say that various deformation | transformation is possible in the range which does not deviate from the meaning.

100... Fluid heating apparatus 2. Flow channel body (pipe)
R… Euro 3... First feeding member
31. First electrode 32... First wire
4 … Second power feeding member 41. Second electrode
42. Second wire 5. power
51. Scott connection transformer 6… Insulating insulation
10... Fluid Heating Unit

Claims (48)

A fluid for heating a heated fluid flowing through the flow path by energizing a straight pipe-shaped flow path body made of a conductive material having a flow path through which a heated fluid flows. As a heating device,
An alternating current voltage is applied between the first feed member connected to the one end side of the flow path forming member and the second feed member connected to the other end side of the flow path forming member,
The second feed member is disposed toward the end of the flow path in the flow path direction of the flow path forming body,
The first power feeding member includes a first electrode connected to one end side of a flow path of the flow path forming member, and a first wire connected to the first electrode to apply an AC voltage to the first electrode,
The second power feeding member includes a second electrode connected to the other end side of the flow path forming member, and a second wire connected to the second electrode to apply an AC voltage to the second electrode,
In the second feed member, the second electrode is disposed with a space or an insulating member interposed between the outer peripheral surface of the flow path forming body toward one end of the flow path along the flow path direction of the flow path forming body. Fluid heating device. The method according to claim 1,
And the first feed member and the second feed member are pulled out from one end side of the flow path forming body to the power supply side. The method according to claim 1,
And a connection portion provided at both ends of the flow path forming body for connecting to other flow path forming bodies. The method according to claim 1,
N group (n is an integer of 1 or more) which connected two flow path formation bodies so that these flow paths may communicate and the 1st feeding member provided in the said two flow path formation bodies may be located inside. With heating unit,
Power outputs of the same polarity are applied to the two first feed members in each of the fluid heating units,
And a second power supply member in each of the fluid heating units, to which the power outputs of the same or different polarity are applied, different from the polarity applied to the first power feeding member. The method according to claim 4,
And a current control circuit is provided on a circuit for inputting the power output to two second power supply members constituting the fluid heating unit. The method according to claim 1,
N pairs (n is an integer of 1 or more) which connected three flow path forming bodies so that these flow paths may communicate and the 1st feeding member and the 2nd feeding member provided in the said 3 flow path forming bodies may face the same direction. Fluid heating unit of
In the first flow path forming body, the second flow path forming body and the third flow path forming body constituting the fluid heating unit,
The first phase of three-phase alternating current is connected to the first feed member of the first flow path forming member and the second feed member of the second flow path forming body,
The second phase of three-phase alternating current is connected to the first feed member of the second flow path forming member and the second feed member of the third flow path forming body,
And a third phase of three-phase alternating current is connected to the first feed member of the third flow path forming member and the second feed member of the first flow path forming body. delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete

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