JP2012112296A - Heat generating machine and wind-force thermal power generation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat generating machine that has a simpler structure and facilitates management, and a wind-force thermal power generation system that includes the heat generating machine as a constituent element.SOLUTION: The heat generating machine comprises: a wind-turbine 30; a rotor 21 arranged along a circumference coaxial with a rotary shaft 32 of the wind-turbine 30 and including ferromagnetic bodies; and a heat generating base 22 internally including a heat generating part arranged facing the rotor 21 and made of a ferromagnetic body, a magnetic-field forming part for forming a magnetic field passing through the rotor 21 and the heat generating part, and piping arranged in contact with the heat generating part and allowing heat-exchanging fluid to pass through.

Description

  The present invention relates to a heat generator and a wind power generation system, and more particularly to a heat generator using heat generated by eddy current and a wind power generation system including the heat generator as a component.

  As a power generator using natural energy, for example, a wind power generator as shown in Patent Document 1 is known.

JP 2007-2773 A

  However, when the generator is arranged in the vicinity of the rotating shaft of the windmill, the generator is installed at a high place. Usually, since a generator is heavy, a considerable strength is required for a rotating shaft that supports the generator. Moreover, there are practically inconvenient points such as the necessity for work at a high place during maintenance of the generator.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a wind power generation system with a simpler structure and easier management, and a heat generator used for the wind power generation system. .

  A heat generator according to the present invention is arranged along a circumference that is coaxial with a windmill, a rotation axis of the windmill, and includes a ferromagnet, a ferromagnet, and a ferromagnet. A heat generating part, a magnetic field forming part that forms a magnetic field passing through the rotor and the heat generating part, and a pipe that is arranged in contact with the heat generating part and through which a fluid for heat exchange passes are provided.

  In the heat generator of the present invention, the rotor, the heat generating unit, the magnetic field forming unit, and the pipe are arranged along, for example, a disk-shaped circumference formed by a plane along the rotation direction of the windmill. Therefore, the heat generating part, the magnetic field forming part, and the piping can be arranged at the lower part of the windmill disk shape. For this reason, compared with the case where it arrange | positions in the vicinity of the rotating shaft of a windmill, a heat_generation | fever part and a magnetic field formation part can be directly installed, for example on the ground where a windmill is installed. Therefore, since the load due to the heat generating portion or the like is not applied to the rotating shaft, the load on the rotating shaft can be reduced and the life of the rotating shaft and the bearing can be extended. Moreover, it is not necessary to provide a high-strength support column and the design of the entire heat generator becomes easy. Furthermore, it is not necessary to perform work at a high place during maintenance of the heat generating part and the like, and the management of the facilities becomes easy.

  In the above heat generator, the wind turbine preferably includes a plurality of spoke portions extending in a radial direction from the rotation shaft, and blades installed in each of the spoke portions.

  When the windmill includes the spoke portion, each blade constituting the windmill is supported by a plurality of spoke portions in addition to the rotating shaft of the windmill. For this reason, each blade is more reliably supported by the rotating shaft and the spoke portion than when the spoke portion is not present. For this reason, for example, in order to suppress breakage of individual blades, it is not necessary to use individual blades as an integral member. For example, even when a plurality of members are joined, there is no particular problem in strength design. . Therefore, for example, a large blade having a total length of several tens of meters is manufactured as an integral member in a factory, and then it is possible to avoid a difficult operation of transporting the windmill to the installation site.

  From the above, if a blade is installed in each of the plurality of spoke parts, a blade larger than the size limit of the blade resulting from transportation to the installation site can be manufactured and installed. For this reason, the heat generator of this invention can be set as the structure which can supply a windmill with larger electric power generation capability. Moreover, since the wind turbine has a large power generation capacity, the wind turbine can be rotated at a lower speed, and the life of the bearing on the rotating shaft of the wind turbine can be extended, or the generation of noise caused by the rotation of the wind turbine can be suppressed. it can.

  In the said heat generator, it is preferable that a rotor is arrange | positioned along the outer peripheral surface of a windmill. If a rotor is arrange | positioned along the outer peripheral surface of a windmill, the heat generating part which opposes this will also be arrange | positioned along the outer peripheral surface of a windmill. Therefore, it is possible to install a pipe through which the magnetic field forming part and the heat exchange fluid pass at the lower part of the outer peripheral surface of the windmill, and the load on the rotating shaft becomes lighter as described above. The entire facility can be easily designed.

  In the above heat generator, the magnetic field forming unit preferably includes a coil that forms a magnetic field when an electric current flows inside. If the magnetic field forming unit includes a coil, the magnetic field forming unit forms a magnetic field by passing a current through the coil. The magnitude of this magnetic field changes over time according to the position of the ferromagnetic body of the rotor through which the magnetic field of the magnetic field forming unit passes. The position of the ferromagnetic material changes according to the rotation state of the rotor. For this reason, when the rotor rotates, the magnitude of the magnetic field passing through the rotor and the heat generating portion changes over time. Due to the change in the magnetic field, an eddy current flows through the heat generating portion, and the heat generating portion generates heat.

  In the above heat generator, the coil is preferably made of a superconducting material. If a superconducting material is used as the coil, a larger current can be passed through the coil. As a result, since the coil forms a larger magnetic field, the heat generating part generates heat more efficiently.

  In the above heat generator, the windmill may further include an adjustment unit that adjusts the rotation axis in a direction along the wind direction. Here, the adjustment unit means a turntable that can change the direction of the entire windmill in accordance with, for example, a change in wind direction in an area where the windmill is installed. In this way, the heat generator can use wind energy more effectively.

  The wind thermal power generation system according to the present invention includes the heat generator of the present invention, a heat storage unit connected to the heat generator and storing heat generated in the heat generator, and the heat stored in the heat storage unit. And a power generation unit that converts electricity into electricity.

  In the wind thermal power generation system of the present invention, the heat generator of the present invention that is easy to design and manage is employed as the heat generator. For this reason, the design and management of the entire wind thermal power generation system can be facilitated, the life of the members can be lengthened, and the generation of noise due to the rotation of the windmill can be suppressed.

  As is clear from the above description, according to the heat generator and the wind power generation system of the present invention, the heat generator with a simple structure and easy design and management, and the wind power generation system including the heat generator as a component are provided. Can be provided.

It is the schematic which shows the structure of a wind thermal power generation system. 2 is a schematic diagram illustrating a structure of a heat generator in Embodiment 1. FIG. It is the schematic which looked at the structure of the heat generator in Embodiment 1 from the direction of 90 degrees with respect to FIG. It is a schematic sectional drawing which shows the structure of a rotor and a heat-emitting part. It is a schematic sectional drawing for demonstrating operation | movement of a heat generator. It is a schematic sectional drawing for demonstrating operation | movement of a heat generator. It is the schematic which shows the structure of the heat generator in Embodiment 2. FIG. It is the schematic which looked at the structure of the heat generator in Embodiment 2 from the direction of 90 degrees with respect to FIG. FIG. 6 is a schematic diagram showing a structure of a heat generator in a third embodiment. FIG. 6 is a schematic diagram showing a structure of a heat generator in a fourth embodiment. It is the schematic which looked at the structure of the heat generator in Embodiment 4 from the direction of 90 degrees with respect to FIG. FIG. 10 is a schematic diagram showing the structure of a heat generator in a fifth embodiment. FIG. 10 is a schematic diagram showing the structure of a heat generator in a sixth embodiment. FIG. 10 is a schematic diagram showing the structure of a heat generator in a seventh embodiment. It is the schematic which looked at the structure of the heat generator in Embodiment 7 from the direction of 90 degrees with respect to FIG. FIG. 10 is a schematic diagram showing the structure of a heat generator in an eighth embodiment. It is an example of the schematic diagram which looked at the structure of the heat generator in Embodiment 8 from the direction of 90 degrees with respect to FIG. 17 is another example different from FIG. 17 in the schematic diagram of the structure of the heat generator in the eighth embodiment viewed from the direction of 90 ° with respect to FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following drawings, the same or corresponding parts are denoted by the same reference numerals, and description thereof will not be repeated.

(Embodiment 1)
First, Embodiment 1 which is one embodiment of the present invention will be described. Referring to FIG. 1, wind power generation system 1 in the present embodiment is connected to a heat generator 81, a heat storage unit 40 that is connected to heat generator 81 and stores heat generated in heat generator 81, and heat storage unit 40. And a power generation unit 50 that converts heat stored in the heat storage unit 40 into electricity.

  The heat storage unit 40 is connected to the heat generator 81 via the pipes 96 to 98 and holds a fluid as a heat medium heated in the heat generator 81. Various fluids can be employed as the fluid as the heat medium, but water is employed as an example of the present embodiment. The power generation unit 50 includes a steam turbine 51 and a generator 52 that generates power by the rotation of the steam turbine 51. The steam turbine 51 is connected to the heat storage unit 40 by a pipe 92 and is rotated by water vapor supplied through the pipe 92. The rotation is transmitted to the generator 52 and used for power generation.

  The wind thermal power generation system 1 further includes a condenser 60 and pumps 71 and 72. The condenser 60 is connected to the steam turbine 51 by a pipe 93. The steam that has passed through the steam turbine 51 is supplied to the condenser 60 via the pipe 93, and the steam is returned to liquid water in the condenser 60. A pipe 61 and a pipe 62 are connected to the condenser 60. The condenser 60 is supplied with cooling water for cooling the water vapor and returning it to the water through the pipe 61, and is discharged through the pipe 62. The pump 71 is connected to the condenser 60 by a pipe 94 and is connected to the heat storage unit 40 by a pipe 95. The pump 72 is connected to the heat storage unit 40 by a pipe 96 and is connected to the heat generator 81 by a pipe 97. The heat storage unit 40, the power generation unit 50, and the condenser 60 are disposed in the power generation chamber 82.

  Next, the heat generator 81 will be described. With reference to FIGS. 2-4, the heat generator 81 in this Embodiment is arrange | positioned along the circumference (outer peripheral surface of the windmill 30) coaxial with the rotating shaft 32 of the windmill 30 and the windmill 30, and is ferromagnetic. A rotor 21 including a body, a heat generating portion 22B that is disposed to face the rotor 21 and is made of a ferromagnetic material, a magnetic field forming portion 23 that forms a magnetic field passing through the rotor 21 and the heat generating portion 22B, and a heat generating portion 22B. And a pipe 24 through which the fluid for heat exchange passes. The windmill 30 includes a rotating shaft 32 disposed so as to extend in a substantially horizontal direction 32A, a blade 34 that projects radially from the rotating shaft 32 and rotates the rotating shaft 32 in the circumferential direction by receiving wind, and the rotating shaft 32. And a plurality of spoke portions 31 extending in the radial direction. Each blade 34 is fixed and supported on each of the plurality of spoke portions 31. Each spoke 31 is connected and fixed to another spoke 31 at the end opposite to the rotation shaft 32, and the rotor 21 is preferably fixed and supported at the outer peripheral end of the spoke 31. . The rotor 21 is arranged so as to face an annular plane formed by a plurality of blades 34. The entire wind turbine 30 including the rotating shaft 32 is supported by the support 33.

  4 to 5 show the rotor 21 and the heating base 22 viewed from the same direction as in FIG. 2, and the rotor 21 is actually annular, but the rotor is shown for convenience in order to simplify the drawing. 21 is described linearly. Moreover, the lower part of the rotor 21 of FIGS. 4-5 shows the inside of the heat generating stand 22. In the rotor 21, ferromagnetic parts 21 </ b> A and nonmagnetic parts 21 </ b> B are alternately arranged at regular intervals in the circumferential direction. A plurality of thin steel plates (for example, so-called electromagnetic steel plates) made of iron, for example, are stacked on the ferromagnetic portion 21A in the vertical direction of FIGS. The ferromagnetic portion 21A is preferably configured so that eddy currents are less likely to occur. In addition, a nonmagnetic material may be disposed in the nonmagnetic portion 21B, or the nonmagnetic portion 21B may be a cavity. When the nonmagnetic part 21B is hollow, it is preferable that the adjacent ferromagnetic parts 21A are arranged at regular intervals and are connected using a structural material.

  A plurality of (for example, two) ferromagnetic members 22 </ b> C, which are ferromagnetic materials, are arranged at regular intervals along the direction in which the rotor 21 extends inside the heating table 22. The ferromagnetic member 22C includes a heat generation difficult portion 22A and a heat generation portion 22B. It is preferable that the heat generation difficulty portion 22A has a configuration that hardly generates eddy currents and hardly generates heat. In the heat generation difficult part 22A, a plurality of thin steel plates made of iron, for example, are stacked in the vertical direction in FIGS. It is preferable that the heat generating part 22B has a configuration that easily generates eddy current and easily generates heat. The heat generating portion 22B is preferably made of an integral iron structure. A magnetic field forming unit 23 is wound around the outer periphery of the heat generation difficult part 22A. The magnetic field forming unit 23 preferably includes a coil that forms a magnetic field when a current flows through the inside. The magnetic field forming unit 23 in FIG. 4 is a coil wound around the ferromagnetic member 22C. Water as a heat medium flowing through the inside of the pipe 24 arranged around the heat generating unit 22B reaches the heat storage unit 40 and is held by the heat storage unit 40.

Next, the operation of the wind thermal power generation system 1 will be described. With reference to FIG. 2 and FIG. 5, magnetic fields β ₁ and β ₂ passing through the ferromagnetic member 22C (heat generating part 22B) and the rotor 21 are generated by the current flowing inside the magnetic field forming part 23. Here, when the blade 34 receives wind, the windmill 30 rotates, so that the rotor 21 connected to the blade 34 via the spoke portion 31 rotates, and the ferromagnetic portion 21A moves in the direction of arrow α in FIG. Move to. At this time, temporal changes in the magnetic fields β ₁ and β ₂ passing through the ferromagnetic member 22C and the rotor 21 occur. Specifically, for example, when the region where the ferromagnetic part 21A overlaps directly above the ferromagnetic member 22C on the left side of FIG. 5 is small, the magnetic field β ₁ passing through the ferromagnetic member 22C and the rotor 21 is Relatively weak. On the other hand, when there are many regions where the ferromagnetic part 21A overlaps directly above the ferromagnetic member 22C on the right side of FIG. 5, for example, the magnetic field β ₂ passing through the ferromagnetic member 22C and the rotor 21 is compared. Become stronger.

At a time when a certain amount of time elapses from the time of the state of FIG. 5 and the state of FIG. 6 is reached, the region where the ferromagnetic part 21A overlaps directly above the left ferromagnetic member 22C increases, and the ferromagnetic member 22C. And the magnetic field β ₁ passing through the rotor 21 is relatively strong. On the other hand, the ferromagnetic member 22C on the right side of FIG. 6 has a smaller area where the ferromagnetic part 21A overlaps directly above, and the magnetic field β ₂ passing through the ferromagnetic member 22C and the rotor 21 becomes relatively weak. .

  Thus, due to the time change of the strength of the magnetic field formed in each ferromagnetic member 22C, an eddy current is generated in the heat generating part 22B, and the heat generating part 22B generates heat. Then, the water flowing through the pipe 24 around the heat generating part 22B is heated to become water vapor (or pressurized hot water or a mixture of water vapor and hot water) and reaches the heat storage part 40. And the said water vapor | steam and / or hot water are stored in the thermal storage part 40 in the state of high temperature and high pressure.

  The steam generated from the steam or hot water stored in the heat storage unit 40 is supplied to the steam turbine 51 through the pipe 92 and the steam turbine 51 rotates. Then, the rotation of the steam turbine 51 is converted into electricity in the generator 52, and power generation is achieved.

  The steam used to rotate the steam turbine 51 reaches the condenser 60 through the pipe 93. In the condenser 60, the water vapor is cooled and returned to liquid water. This water is sent to the pump 71 through the pipe 94. Then, the pump 71 returns the water to the heat storage unit 40 through the pipe 95. On the other hand, the water in the heat storage unit 40 is sent to the pump 72 through the pipe 96. The pump 72 supplies water to the heat generator 81 through the pipe 97. That is, circulation of water that enters the heat storage unit 40 from the heat generator 30 and returns from the heat storage unit 40 to the heat generator 81, and circulation of water that returns from the heat storage unit 40 to the heat storage unit 40 through the steam turbine 51 and the condenser 60 Is formed. In this way, water as a heat medium circulates in the wind power generation system 1.

  Here, by arranging a plurality of the ferromagnetic members 22C along the rotor 21, a change in the strength of the magnetic field due to the rotation of the windmill 30 can be continuously generated, and the heat generation in the heat generating portion 22B is continuously generated. be able to.

When the wind received by the windmill 30 is weak, it is preferable to reduce the excitation current of the magnetic field forming unit 23. Then, the strengths of the magnetic fields β ₁ and β ₂ formed by the magnetic field forming unit 23 are reduced, and the resistance value that the outer peripheral portion of the blade 34 receives by the magnetic fields β ₁ and β ₂ is reduced. For this reason, for example, the resistance applied to the blade 34 can be substantially only a mechanical resistance. Therefore, the overall resistance applied to the blade 34 can be reduced, and the windmill 30 can be easily rotated. This is particularly effective for the wind turbine 30 having a large rotational torque required for starting rotation.

  Conversely, if a coil made of a superconducting material is used as the coil included in the magnetic field forming unit 23, the value of the current flowing through the coil can be further increased. As a result, the magnetic field α formed by the magnetic field forming unit 23 can be further increased, and the eddy current in the heat generating unit 22B can be further increased. That is, heat can be generated more efficiently.

  According to the heat generator 81 in the present embodiment, in the wind thermal power generation system 1, the heat generating base 22 is arranged on the ground where the wind thermal power generation system 1 is installed. That is, the magnetic field forming unit 23 and the heat generating unit 22 </ b> B are arranged along the rotor 21 arranged at the lowermost part of the outer peripheral surface of the windmill 30. For this reason, the rotating shaft 32 only needs to support the blade 34, the spoke portion 31, and the rotor 21 of the windmill 30, and it is not necessary to support the heat generating base 22 having a large mass with the rotating shaft 32. Therefore, the load applied to the rotating shaft 32 and the support column 33 can be reduced, and the design of the strength of the wind power generation system 1 as a whole can be facilitated. Further, since the heating table 22 is installed at a low place on the ground, it is not necessary to perform work at a high place, for example, during maintenance of the heating table 22, and the maintenance work can be made easier.

  According to the heat generator 81 in the present embodiment, the individual blades 34 of the windmill 30 are fixed and supported by the spoke portions 31. For this reason, since the blade 34 is supported by the rotating shaft 32, the stress applied to the rotating shaft 32 can be further reduced. In other words, the possibility of damage to the blade 34 itself and the rotary shaft 32 can be reduced and the rigidity of the blade 34 itself may be lowered as compared with the case where the blade 34 is supported only by the rotary shaft 32. In this way, the blade 34 is supported by the rotating shaft 32 and the spoke portion 31 even if a blade 34 in which a plurality of members are joined is used instead of the large integrated blade 34. Sometimes the likelihood of the blade 34 collapsing at the joint of the blade 34 members is reduced. Therefore, by providing the spoke portion 31, it is possible to use a structure in which a plurality of small members are joined as the blade 34, and facilitate the transportation of the blade 34 to the installation location of the wind power generation system 1. Can do.

  Further, if a structure in which a plurality of small members are joined is used as the blade 34, it is possible to easily form the blade 34 larger than the integrated blade 34. For this reason, the electric power generation amount of the electric power generation part 50 by the rotational force of the windmill 30 can be raised more.

  Alternatively, if the blade 34 becomes larger than the maximum size due to the transport limit of the integrated blade 34, the windmill 30 can be rotated at a lower speed. This is because even if the windmill 30 is rotated at a lower speed, the power generation capacity of the windmill 30 is sufficiently large. By making the rotation of the windmill 30 slower, it is possible to extend the life of the bearings on the rotating shaft of the windmill 30 and to suppress the generation of noise due to the rotation of the windmill 30.

(Embodiment 2)
Next, Embodiment 2 which is another embodiment of the present invention will be described. The heat generator 81 and the wind thermal power generation system 1 in the second embodiment basically have the same structure as that in the first embodiment and operate in the same manner. However, the heat generator 81 in the second embodiment is different from the first embodiment in the configuration of the rotor 21 and the heat generating base 22.

  That is, referring to FIG. 7 and FIG. 8, in the heat generator 81 according to the second embodiment, the rotor 21 is located on the inner side of the outer peripheral surface of the blade 34 along the circumference coaxial with the rotating shaft 32 of the windmill 30. Has been placed. 7 and 8, the rotor 21 is located at a position where the length of the blade 34 extending in the radial direction from the rotating shaft 32 is approximately half the total length of the blade 34. Has been placed. The heating table 22 is arranged so as to face the outer peripheral surface of the rotor 21 as in the first embodiment. Therefore, the heating table 22 is arranged on the inner side of the plane formed by the windmill 30, that is, above the heating table 22 of the first embodiment.

  By disposing the rotor 21 on the inner side of the circumference formed by the windmill 30 as in the second embodiment, the rotor 21 is arranged in the windmill 30 as compared with the case where the rotor 21 is disposed on the outer peripheral portion of the windmill 30. The length extending along the circumferential direction is shortened. Therefore, the entire weight of the rotor 21 can be reduced. For this reason, the load which the rotating shaft 32 supports the rotor 21 can be made lighter.

(Embodiment 3)
Next, Embodiment 3 which is still another embodiment of the present invention will be described. The heat generator 81 and the wind thermal power generation system 1 according to the third embodiment basically have the same structure as that of the first embodiment and operate in the same manner. However, the heat generator 81 in the third embodiment is different from that in the first embodiment in the configuration in which the heat generating base 22 is installed at the lower part and the upper part of the outer peripheral surface of the windmill 30. Referring to FIG. 9, the configuration of the heating table 22 installed at the upper part of the outer peripheral surface of the windmill 30 is the same as that of the heating table 22 at the lower part of the outer peripheral surface. 9 is the same as the configuration of the heating table 22 in the first embodiment.

  If the heat generating bases 22 are installed at a plurality of locations on the outer peripheral side of the windmill 30 (for example, a total of two in the lower part and the upper part) as in the present embodiment, the power generation capacity of the heat generator 81 and the wind power generation system 1 as a whole is increased. It can be increased (doubled in the case of FIG. 9).

(Embodiment 4)
Next, a fourth embodiment which is still another embodiment of the present invention will be described. The heat generator 81 and the wind power generation system 1 according to the fourth embodiment basically have the same structure as that of the first embodiment, operate in the same manner, and achieve the same effects. However, the heat generator 81 in the fourth embodiment is different from that in the first embodiment in the configuration in which the support 33 and the heat generating base 22 are placed on the adjusting unit 25.

  Referring to FIGS. 10 and 11, adjustment unit 25 is configured to be freely rotatable in a direction along a plane on which adjustment unit 25 is installed, such as a turntable. That is, by fixing the support 33 and the heating table 22 on the adjustment unit 25, the entire heat generator 81 including the windmill 30 rotates with the rotation of the turntable and can be directed in any direction. .

  By having the configuration as described above, the blade 34 can be adjusted so as to face an arbitrary direction in accordance with the change in the wind direction, so that the blade 34 can rotate more efficiently. For this reason, the rotational energy of the windmill 30 and the rotor 21 can be effectively utilized by the power generation of the power generation unit 50.

(Embodiment 5)
Next, Embodiment 5 which is still another embodiment of the present invention will be described. The heat generator 81 and the wind thermal power generation system 1 according to the fifth embodiment basically have the same structure as that of the first embodiment, operate in the same manner, and produce the same effects. However, referring to FIG. 12, the heat generator 81 in the fifth embodiment is implemented in a configuration in which the windmill 30 is supported in two places by a cylindrical support body 35 that is in the form of a roller instead of the support 33 and is rotatable. This is different from the case of Form 1.

  The cylindrical support 35 as described above may be included in the heat generator 81. At this time, the wind turbine 30 including the rotor 21 is supported by the column support 35 by arranging the column support 35 and the rotor 21 so as to contact each other. Further, since the columnar support 35 can freely rotate around its central axis along the circumferential direction of FIG. 12, the columnar support 35 is placed on the outer peripheral surface of the rotor 21 as the rotor 21 rotates. Rotates with movement (rotation). For this reason, the rotor 21 can rotate more smoothly and with a lighter force.

(Embodiment 6)
Next, Embodiment 6 which is still another embodiment of the present invention will be described. The heat generator 81 and the wind thermal power generation system 1 in the sixth embodiment basically have the same structure as that in the first embodiment, operate in the same manner, and produce the same effects. However, referring to FIG. 13, the heat generator 81 in the sixth embodiment is different from that in the first embodiment in the configuration in which a larger number of blades 34 are provided than in the first embodiment.

  In the circumferential direction formed by the windmill 30, another blade 34 </ b> B is further disposed between adjacent blades 34 </ b> A that are disposed at the same intervals as in the first embodiment. The blade 34A extends like the blade 34 of the first embodiment so as to protrude in the radial direction from the rotary shaft 32. However, the blade 34B has a radially outer side than the end of the blade 34A on the rotary shaft 32 side. As an end, it extends so as to protrude in the radial direction therefrom. By adopting such a configuration, when the number of blades increases, interference between adjacent blades 34A and 34B in the vicinity of the rotating shaft 32 is suppressed.

  If the number of blades 34A and 34B increases as in the present embodiment, the efficiency with which the windmill 30 uses wind is improved. That is, even if the wind speed around the heat generator 81 is the same, the efficiency of converting wind into rotational force is improved by the large number of blades 34A and 34B. However, if a large number of blades 34 </ b> A and 34 </ b> B interfere with each other in the vicinity of the rotation shaft 32, the plurality of blades 34 </ b> A and 34 </ b> B gather together in the vicinity of the rotation shaft 32. In this region, since there is no gap through which the wind can pass, there is a possibility that the efficiency of converting the wind into a rotational force is lowered. Therefore, in order to secure a gap through which the wind can pass in the vicinity of the rotating shaft 32, the blade 34B added to the blade 34 of the first embodiment is made shorter than the blade 34A, and the blade 34A in the vicinity of the rotating shaft 32 is used. , 34B are set to the same extent as in the first embodiment. In this way, a decrease in efficiency in converting wind in the vicinity of the rotating shaft 32 into rotational force is suppressed.

(Embodiment 7)
Next, Embodiment 7 which is still another embodiment of the present invention will be described. The heat generator 81 and the wind thermal power generation system 1 according to the seventh embodiment basically have the same structure as that of the first embodiment, operate in the same manner, and achieve the same effects. However, the heat generator 81 according to the seventh embodiment is different from the first embodiment in the configuration of the blade 34.

  The heat generator 81 of the seventh embodiment has a configuration in which the direction of the plurality of flat blades 34 changes according to the rotation state and the wind direction of the windmill 30. Specifically, referring to FIG. 14 and FIG. 15, the upper half blade 34 of the windmill 30 has a main surface having the largest area among the flat plate shapes intersecting a circular plane along the rotation direction of the windmill 30. It arrange | positions so that it may face the direction (for example, perpendicular | vertical direction) to do. On the other hand, in the lower half blade 34, the main surface having the largest area in the flat plate shape has an angle with respect to a circular plane along the rotation direction of the windmill 30 smaller than the angle in the upper half blade 34 (more Preferably, the main surface faces in a direction along the plane. When each blade 34 is on the upper side as the wind turbine 30 rotates, the main surface faces in a direction intersecting (for example, perpendicular to) the plane along the rotation direction of the wind turbine 30, and the lower side of the wind turbine 30. The orientation of the main surface is changed so as to be substantially along the plane.

  In this situation, for example, if the wind blows from the right side to the left side in FIG. 14, that is, from the near side perpendicular to the paper surface in FIG. 15 to the far side, the upper half blade 34 in FIG. Since the arrangement has a large area, a force for receiving wind and rotating the windmill counterclockwise in FIG. 14 is generated. On the other hand, the lower half blade 34 in FIG. 14 has a small area in the wind blowing direction, so that stress caused by receiving the wind is smaller than that of the upper half blade 34. Therefore, the windmill 30 rotates counterclockwise by the wind received by the upper half blade 34 in FIG.

  That is, the lower half blade 34 in FIG. 14 receives less stress due to the wind, and thus, for example, the lower half blade 34 is less likely to receive a rotating force so as to move from the right side to the left side in FIG. Therefore, the force in the direction to cancel the rotation by the upper half blade 34 is less likely to be applied to the windmill 30, and the windmill 30 rotates counterclockwise in FIG.

  In the situation of FIG. 14, for example, if the wind blows from the near side perpendicular to the paper surface of FIG. 14 to the back side, the blade 34 in the lower half of FIG. The blade 34 in the upper half of FIG. 14 receives the wind and the efficiency of rotation is reduced (the stress received by the wind is reduced). Therefore, the windmill 30 can be rotated by the lower half blade 34. That is, the heat generator shown in FIG. 14 can rotate with high efficiency even if the wind blows from any of the above directions. For this reason, the range of the wind direction which can be utilized efficiently is expanded, As a result, the utilization efficiency of the said wind of the wind thermal power generation system 1 is improved.

  For all the blades 34, an actuator or the like for changing the orientation of the main surface having a large area of each blade 34 may be applied to each blade 34 in the vicinity of the rotation shaft 32. In this case, for example, each blade 34 can be rotated so as to face the direction in which the wind can be efficiently received in accordance with the position (phase) due to the rotation of each blade 34 of the windmill 30. Wind energy can be used efficiently.

(Embodiment 8)
Next, an eighth embodiment which is still another embodiment of the present invention will be described. The heat generator 81 and the wind thermal power generation system 1 according to the eighth embodiment basically have the same structure as that of the first embodiment, operate in the same manner, and produce the same effects. However, the heat generator 81 in the eighth embodiment is different from that in the first embodiment in the configuration of the column 33.

  Referring to FIGS. 16 and 17, in the heat generator 81 of the eighth embodiment, the support column 33 is disposed only in one direction with respect to the direction perpendicular to the paper surface of FIG. The rotating shaft 32 and the spoke part 31 are supported. FIG. 18 shows a configuration in which the struts 33 are arranged only on one side as in FIG. 17 in the configuration in which the rotor 21 is arranged inside the plane formed by the outer periphery of the windmill 30 as in the second embodiment. ing.

  That is, the column 33 may be configured to support the windmill 30 from two directions as in the first embodiment, but may be configured to support the windmill 30 from only one direction as in the present embodiment. .

  The embodiment disclosed this time is to be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  The heat generator and the wind power generation system of the present invention can be particularly advantageously applied to a heat generator using heat generated by an eddy current and a wind power generation system including the heat generator as a component.

  DESCRIPTION OF SYMBOLS 1 Wind thermal power generation system, 21 Rotor, 21A Ferromagnetic part, 21B Non-magnetic part, 22 Heating stand, 22A Heating difficult part, 22B Heating part, 22C Ferromagnetic member, 23 Magnetic field formation part, 24 Piping, 25 Adjustment Part, 30 windmill, 31 spoke part, 32 rotating shaft, 32A substantially horizontal direction, 33 strut, 34, 34A, 34B blade, 35 cylindrical support, 40 heat storage part, 50 power generation part, 51 steam turbine, 52 generator, 60 Condenser, 61, 62 piping, 71, 72 pump, 81 heat generator, 82 power generation chamber, 92-98 piping.

Claims (7)

With a windmill,
A rotor disposed along a circumference coaxial with the rotation axis of the windmill, and including a ferromagnetic material;
A heating part that is disposed opposite to the rotor and is made of a ferromagnetic material;
A magnetic field forming part for forming a magnetic field passing through the rotor and the heat generating part;
A heat generator comprising: a pipe disposed in contact with the heat generating portion and having a pipe through which a fluid for heat exchange passes. The windmill is
A plurality of spoke portions extending radially from the rotating shaft;
The heat generator according to claim 1, comprising a blade installed on each of the spoke portions.   The heat generator according to claim 1 or 2, wherein the rotor is disposed along an outer peripheral surface of the windmill.   The said magnetic field formation part is a heat generating machine of any one of Claims 1-3 containing the coil which forms a magnetic field by an electric current flowing through the inside.   The heat generator according to claim 4, wherein the coil is made of a superconducting material.   The said windmill is a heat generating machine of any one of Claims 1-5 further including the adjustment part which adjusts the said rotating shaft to the direction along a wind direction. A heat generator,
A heat storage unit connected to the heat generator and storing heat generated in the heat generator;
A power generation unit that is connected to the heat storage unit and converts heat stored in the heat storage unit into electricity;
The said heat generator is a heat generator of any one of Claims 1-6 which is a heat generator of any one of Claims 1-6.

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