JP2010196568A - Power generation device using impeller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology of a power generation device using an impeller rotatively driven by a heat carrying fluid of two phases circulated between a heat receiving part and a heat radiation part. <P>SOLUTION: The impeller 23 is composed of a rotating shaft 23a situated at the rotation center of the impeller and rotatably supporting the impeller 23, a cylindrical runner 23b fixed to the rotating shaft 23a, and a plurality of blade-like buckets 23c arranged on an outer peripheral cylindrical surface of the cylindrical runner 23b radially from the center of the rotating shaft 23a at equal opening angles. The impeller 23 has a construction rotating with small torque and a check valve is provided at a proper position for preventing reverse rotation. A generator rotor 23d is fixed to the rotating shaft 23a and the impeller 23 is rotated by a flow of the heat carrying fluid 26 and has a power generating function. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

The present invention relates to a power generation device using an impeller that is rotationally driven by a two-phase heat transfer fluid circulating between a heat receiving portion and a heat radiating portion.

Conventionally, as an example of the prior art of a power generator using this type of impeller, there is one disclosed in Japanese Patent Laid-Open No. 1-130007 shown in FIG. Explaining this, the heat transfer fluid in the prior art is a fluid of one liquid and two phases, which is the same as a working fluid in a general heat flow path. That is, the vapor (gas phase) is condensable and circulates in the liquid phase in the heat radiating section 1 and the heat radiating section 1 to the heat receiving section 2 of the loop type flow path, and the heat receiving section 2 and the heat receiving section. In the flow path from the part 2 to the heat radiating part 1, it circulates in the gas phase. In this conventional technique, as shown in FIG. 9, the cylinder type container 3 and the composite container of the thin tube container group are connected to each other in a portion where the heat transfer fluid is in a liquid phase flow to form a closed loop tube type container 4.

Accordingly, a water turbine 5 is arranged in the cylinder type container 3 to constitute a power generation unit. The water turbine 5 is strongly driven by the liquid phase flow 6 of the heat carrier fluid that is strongly sucked into the thin tube container group ejected into the cylinder type container 3. In the conventional technique, when the amount of liquid sealed in the closed-loop tubular container 4 is as large as 80 to 90% of the volume in the container, the gas phase flow portion is only in the heat receiving portion and the vicinity in the vicinity thereof. Therefore, the cylinder-type container 3 can be connected to the upstream side of the heat dissipating part 1 close to the heat dissipating part 1.
In addition, 7 is a gaseous-phase flow, 8 is a circulation direction control means, 9 is a high temperature part, 10 is a low temperature part.

As a second example of the prior art, there is one disclosed in Japanese Patent Laid-Open No. 2002-34233 shown in FIG. This is a heat flow path in which a conductive liquid is enclosed, and forms a loop. When one end of the loop is heated and the other end is cooled, the liquid and the liquid vapor are discharged. Heat flow channels 11-13 for circulation, means 14, 15 for generating a magnetic field in at least part of the loop of the heat flow channel, and electrical energy generated when the liquid and the liquid vapor move across the magnetic field. Means (not shown).

In FIG. 8A, when a conductive fluid flows in the direction of the arrow, an electromotive force is generated between the two electrodes in accordance with Fleming's right-hand rule. As shown in FIG. 8B, the heat flow paths are bent and arranged in n rows and m columns (n and m are arbitrary natural numbers). Here, if the magnetic flux density of the magnetic field created by the permanent magnet is φ, the fluid velocity is v, and the length of the permanent magnet is L, the electromotive force E is expressed by the following equation. E = φ · v · L · m · n. In general, since the direction of movement of the fluid changes alternately, an alternating electromotive force is generated.
On the other hand, when it is desired to obtain a DC electromotive force, a check valve is provided in the heat flow paths 11 to 13 to flow only in one direction.
Reference numeral 16 denotes a housing for accommodating and sandwiching the heat flow paths 11 to 13, 17 denotes a high temperature portion, and 18 denotes a low temperature portion.

As a third example of the prior art, there is one disclosed in Japanese Patent Laid-Open No. 2006-132344 shown in FIG. Describing this, FIG. 9 shows an open downstream type power generation method in the prior art, and rotation is given by the water flow flowing in the water channel 19 in the middle of the water channel 19 in which the water flow flows at a predetermined flow velocity. A water turbine 20 is installed, and the rotation of the water turbine 20 is increased by using a speed increasing mechanism 21 and, if necessary, a speed increasing rotation transmission means (not shown), and the generator 22 is driven to generate power. It is a thing. Examples of the water channel 19 include water supply / drainage channels in facilities of various factories, public facilities, large stores, water supply / drainage channels of hotels, rivers, agricultural water channels, and the like.
Japanese Patent Laid-Open No. 1-130007 Japanese Patent Laid-Open No. 2002-34233 Japanese Patent Laid-Open No. 2006-132344

Since the above-described power generator in the prior art has the above-described configuration and operation, the following problems existed. That is, in the first example of the prior art, a loop type flow path as a plurality of pressure thin tubes and a circulation direction regulating means, that is, a check valve are required for each of the plurality of loop type flow paths. There is a problem that the structure of the apparatus is complicated and maintenance is difficult. In the second example of the prior art, the two-phase liquid to be used is limited to a liquid having conductivity or magnetism and is not versatile. Therefore, there is a problem that the structure of the flow path in the power generation unit becomes complicated. Furthermore, in the third example of the prior art, since the power is generated by the water flowing through the inclined water channel, the power generation device is large-scale, and is not suitable as a power generation means in a mobile object such as an in-vehicle use. There was a problem that there was.

The power generation apparatus using the impeller according to the present invention is invented to solve the above-mentioned problems, and is constituted by the following configuration and means.

That is, according to the first aspect of the present invention, in the configuration including the endless circulation path filled with the heat carrier fluid that is fed by the propulsive force due to the temperature difference between the heat receiving portion and the heat radiating portion, the endless circulation is provided. The rotor includes a rotor arranged in a direction perpendicular to the flow direction of the heat carrier fluid and having a generator rotor fixed to the rotor. The rotation axis of the rotor can be arranged perpendicular to the flow direction of the heat carrier fluid.

According to a second aspect of the present invention, in the power generator using the impeller according to the first aspect, the endless circulation path is a single substantially O-shaped circulation path.

According to a third aspect of the present invention, in the power generator using the impeller according to the first aspect, the endless circulation path is plural.

According to a fourth aspect of the present invention, in the power generator using the impeller according to the first aspect, the endless circulation path is an endless circular circulation path.

According to a fifth aspect of the present invention, in the power generator using the impeller according to the first aspect, a throttle valve is interposed in the endless circulation path.

Since the power generator using the impeller according to the present invention has the above-described configuration, the following effects can be obtained.

That is, according to the first aspect of the present invention, in the configuration provided with the endless circulation path filled with the heat transfer fluid that is flowed by the propulsive force due to the temperature difference between the heat receiving portion and the heat radiating portion, A circular circulation path comprising a rotor arranged in a direction perpendicular to the flow direction of the heat carrier fluid and having a generator rotor fixed to the rotor. Provided is a power generator using an impeller.
With such a configuration, the impeller is rotated by the heat carrier fluid and rotationally drives the generator rotor. Since this generator rotor is structured to rotate with a relatively low torque, an output voltage is generated from the generator stator. Since the rotating shaft of the impeller and the generator rotor are arranged at a position perpendicular to the flow direction of the heat carrier fluid, the heat carrier fluid has a high pressure, a low flow rate, and the generator stator There is an effect that stable power generation can be performed.

According to the second aspect of the present invention, there is provided a power generator using an impeller according to the first aspect, wherein the endless circulation path is a single substantially O-shaped circulation path.
Since it was set as such a structure, in addition to the effect of the invention of Claim 1, since an endless circulation path can be comprised with a single flow path, it can be said that the structure of an electric power generating apparatus can be simplified. There is an effect that the maintenance inspection is easy.

According to the third aspect of the present invention, there is provided a power generator using an impeller according to the first aspect, wherein the endless circulation path is plural.
With such a configuration, in addition to the effect of the invention of claim 1, even when the amount of heat given to the heat receiving portion is large, heat energy can be conducted to a large amount of heat carrier fluid, so a single rotor However, there is an effect that the heat energy of the heat transfer fluid can be efficiently converted into electric energy.

According to a fourth aspect of the present invention, there is provided a power generator using an impeller according to the first aspect, wherein the endless circulation path is an endless circular circulation path.
Since it was set as such a structure, in addition to the effect of invention of Claim 1, since a heat receiving part and a heat radiating part can be arrange | positioned in the vicinity of an impeller, there exists an effect that energy conversion efficiency improves, and a power generator is made. There is an effect that the size can be reduced. Furthermore, the rotational radius of the impeller can be increased and the rotational torque can be increased.

According to the fifth aspect of the present invention, there is provided a power generator using an impeller according to the first aspect, wherein a throttle valve is interposed in the endless circulation path.
Since it was set as such a structure, in addition to the effect of the invention of Claim 1, there exists an effect that it becomes easy to control the flow direction of a heat carrier fluid.

It is drawing which shows the electric power generating apparatus E as embodiment of the electric power generating apparatus using the impeller which concerns on this invention, Comprising: It is the example which installed the impeller on the one side of the flow path which comprises an endless circulation path, ( a) is a horizontal sectional view thereof, and (b) is a sectional view of an impeller constituting a generator provided in the power generator E as seen from the direction of the arrows AA. It is drawing which shows the Example of the electric power generating apparatus using the impeller which concerns on this invention, Comprising: (a) is drawing which shows Example 1 in the electric power generating apparatus E1 using the impeller which concerns on this invention, Example in which an impeller is installed between the other flow path of one endless circulation path and one flow path of the other endless circulation path in the power generation device E1 constituting two endless circulation paths FIG. 7B is a diagram showing a second embodiment of the power generation apparatus using the impeller according to the present invention, and shows both sides of the flow path in the power generation apparatus E2 constituting the endless circulation path. It is a schematic diagram which shows the example which installed the impeller in the surface. It is drawing which shows Example 3 of the electric power generating apparatus using the impeller which concerns on this invention, Comprising: In the electric power generating apparatus E3 which comprises an endless circulation path, two impellers were adjacently arranged on the other side of the flow path. It is a schematic diagram which shows an example. It is drawing which shows the electric power generating apparatus E4 as Example 4 of the electric power generating apparatus using the impeller which concerns on this invention, Comprising: An impeller is installed in the one side of the flow path which comprises an endless circulation path, and an endless circulation path It is a schematic diagram which shows the example which installed the meandering line-shaped flow path in the other side of the flow path which comprises. It is drawing which shows the electric power generating apparatus E5 as Example 5 of the electric power generating apparatus using the impeller which concerns on this invention, Comprising: The example which installed the impeller and the throttle valve in the one side of the flow path which comprises an endless circulation path | route It is a schematic diagram shown. It is drawing which shows the electric power generating apparatus E6 as Example 6 of the electric power generating apparatus using the impeller which concerns on this invention, Comprising: The example which has arrange | positioned the heat receiving part and heat radiating part which serve as the casing which accommodates a substantially disk shaped impeller is shown. It is a schematic diagram, (a) is a vertical direction sectional view of the central portion of (b), (b) is a horizontal direction sectional view. It is drawing which shows the 1st example of the electric power generating apparatus in a prior art. It is drawing which shows the 2nd example of the electric power generating apparatus in a prior art, (a) is the front view, (b) is a right view. It is drawing which shows the 3rd example of the electric power generating apparatus in a prior art. It is drawing which shows the electric power generating apparatus E as embodiment of the electric power generating apparatus using the magnetic impeller which concerns on this invention, Comprising: It is the example which installed the magnetic impeller on the one side of the flow path which comprises an endless circulation path | route. (A) is the horizontal sectional view, (b) is the vertical sectional schematic diagram which looked at the magnetic impeller which comprises the generator with which the electric power generating apparatus E was equipped from the arrow AA line direction.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a power generator using an impeller according to the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a view showing a power generation device E as an embodiment of a power generation device using an impeller according to the present invention, in which an impeller is installed on one side of a flow path constituting an endless circulation path. FIG. 6A is a horizontal sectional view, and FIG. 5B is a vertical sectional view of the impeller constituting the generator provided in the power generation apparatus E as seen from the direction of the arrows AA shown in FIG.

Reference numeral 23 denotes an impeller, and the impeller 23 is an impeller that can be classified as an impulse turbine used for normal hydropower generation. For example, a Pelton turbine can be used. The impeller 23 is positioned at the rotation center of the impeller 23, rotates and supports the impeller 23, a cylindrical runner 23b fixed to the rotary shaft 23a, and an outer peripheral cylinder of the cylindrical runner 23b. On the surface, it is composed of a plurality of blade-like buckets 23c arranged with the same opening angle radially from the center of the rotating shaft 23a. The impeller 23 is structured to rotate with a low torque, and a check valve can be installed at an appropriate position so as not to reverse. In FIG. 1, the bucket 23c is a flat blade shown by a straight line in the normal direction from the center of rotation. However, the bucket 23c is not limited to this and may be a bucket-like container. Reference numeral 23d denotes a generator rotor fixed to the rotating shaft 23a. The impeller 23 is rotated by the flow of the heat transfer fluid 26 and has a power generation function.

Reference numeral 24 denotes a casing. The casing 24 includes a bearing (not shown) that supports the rotating shaft 23a of the impeller 23, and is a fixed, substantially cylindrical container that accommodates the entire impeller 23. It is. Further, as shown in FIG. 1, a slight gap is set between the bucket 23 c of the impeller 23 and the inner surface of the casing 24, and the impeller 23 can smoothly rotate in the casing 24. .

The casing 24 is provided with a heat carrier fluid introduction part 24a and a heat carrier fluid outlet part 24b on a part of its outer periphery, and the heat carrier fluid inlet part 24a and the heat carrier fluid outlet part 24b serve as an endless circulation path to be described later. It is connected to the flow path with a sealing structure.

Reference numeral 25 denotes a flow path having, for example, a substantially U-shaped circulation path, and the inside of the flow path 25 is filled with a heat transfer fluid 26 described later. The cross-sectional shape of the channel 25 is preferably substantially circular or elliptical, but may be rectangular, triangular, or semicircular. As shown in FIG. 1, the overall shape is formed in a vertically long rectangle. As shown in FIG. 1, the flow path 25 is integrally formed and connected to the heat transfer fluid introduction part 24a and the heat transfer fluid lead-out part 24b of the casing 24.

Reference numeral 26 denotes a heat carrier fluid. The heat carrier fluid 26 is, for example, water, and is a two-phase fluid that exhibits a liquid phase or a gas phase depending on the amount of applied heat energy. The heat carrier fluid 26 is required to have a critical temperature not higher than the heat source temperature and not to be solidified within the heat radiating portion temperature or the operating temperature range. In the case of water, for example, a temperature range of 100 ° C. to 300 ° C. is applied. In FIG. 1, the heat carrier fluid 26 is a mixed fluid of a gas phase and a liquid phase in the flow path 25, 26 a indicates a liquid phase part of the heat carrier fluid 26, and 26 b indicates a gas phase part of the heat carrier fluid 26. It is. Reference numerals 26b1 and 26b2 represented by a circular shape and a substantially elliptical shape schematically show the gas phase portion 26b of the heat transfer fluid 26. The heat transfer fluid 26 as the mixed fluid of the gas phase part 26b2 and the liquid phase part 26a shown in a substantially elliptical shape is the heat transfer fluid as the mixed fluid of the gas phase part 26b1 and the liquid phase part 26a shown in a circle. Since the proportion of the gas phase portion is larger than that of the fluid 26, the heat transfer fluid 26 as a mixed fluid of the gas phase portion 26b2 and the liquid phase portion 26a shown in a substantially elliptical shape is a gas phase portion shown in a circle. Compared to the heat transfer fluid 26 as a mixed fluid of the liquid phase portion 26a and the liquid phase portion 26b1, the heat transfer fluid 26 has more latent heat, that is, transition heat.

For example, when the thin plate heat device as the heat transport device is used as the flow channel 25, an optimum effect is obtained. It is designed to transport large amounts of heat smoothly. The thin plate heat device incorporates a loop-type meandering small diameter tunnel heat pipe, and the working fluid sealed inside the loop-type meandering small-diameter tunnel heat pipe is sent through the reflux line, that is, the flow path 25. To do. The loop-type meandering thin tunnel heat pipe of the thin plate heat device needs to have sufficient strength against the internal pressure of the hydraulic fluid. A thin plate heat device that satisfies such various conditions includes the loop-type meandering thin tunnel heat pipe described above in the thin plate. A group of such unit pairs of loop-type small-diameter tunnel heat pipes are connected and communicated with each other, and are configured and integrated in a planar shape. The group of loop type small diameter tunnel heat pipes integrated in this way is hermetically sealed and vacuum degassed, and then a predetermined amount of a predetermined two-phase condensable hydraulic fluid is sealed in the heat pipe. Is structured. The thin plate heat device is composed of a welded laminate of unit thin plates and flat thin plates made of a metal having good thermal conductivity. Prior to lamination, a series of long meandering grooves are formed in advance on the welding surface of the unit thin plate. The long meandering narrow grooves may be formed by any means such as cutting, electric discharge machining, or press molding. The long meandering narrow groove is configured as a closed meandering narrow tunnel by stacking, and a predetermined amount of a predetermined working fluid is sealed in the sealed meandering narrow tunnel, thereby forming a meandering narrow tunnel heat pipe.

Reference numeral 27 denotes an evaporating part, that is, a heat receiving part, and the heat receiving part 27 has a structure surrounding the flow path 25 in order to efficiently transmit heat energy to the heat transfer fluid 26. The heat receiving part 27 is a part that changes the phase of the heat carrier fluid 26 from the liquid phase 26a to the gas phase 26b.
Reference numeral 28 denotes a condensing part, that is, a heat radiating part. The heat dissipating part 28 is a part that rotates the impeller 23 to lower the temperature of the heat carrier fluid 26 that imparts kinetic energy to the impeller 23 and changes the phase of the heat carrier fluid 26 from the gas phase 26b to the liquid phase 26a. In order to efficiently remove the heat energy from the heat transfer fluid 26, the flow path 25 is surrounded.
In addition, it is good also as a structure which changes the shape of the upper side part or lower side part of the said endless circulation path, and increases flow resistance.

Next, the operation | movement etc. based on embodiment of the electric power generating apparatus using the impeller which concerns on this invention are demonstrated.
When the heat receiving portion 27 is heated and the heat radiating portion 28 is cooled, an interaction occurs due to a temperature difference between the heat receiving portion 27 and the heat radiating portion 28, and a propulsive force is given to the heat carrying fluid 26. As shown in FIG. 1, the flow path 25 is circulated and sent from below to above. And by the function of the heat receiving part 27 and the heat radiating part 28, the heat carrier fluid 26 filled in the flow path 25 is sent from the heat receiving part 27 in the directions of arrows B1 to B4. Therefore, the impeller 23 is rotated by the heat carrier fluid 26. The rotating shaft 23a rotates, the rotating shaft 23a protrudes from the fluid seal to the atmosphere side through a shaft seal (not shown), and is connected coaxially with the generator rotor 23d to be connected to the generator rotor 23d. Is driven to rotate. The generator rotor 23d rotates with a relatively low torque. As a result, an output voltage is generated from the generator stator (not shown). Here, the rotating shaft 23a of the impeller 23 and the generator rotor 23d are arranged at positions perpendicular to the flow direction of the heat transfer fluid 26. Therefore, the heat carrier fluid 26 has a high pressure, a low flow rate, and stable power generation in the generator stator.
In FIG. 1, the heat receiving portion 27 is disposed below and the heat radiating portion 28 is disposed above. However, the heat receiving portion 27 may be disposed above and the heat radiating portion 28 may be disposed below. The direction of rotation of the impeller 23 can be reversed. Further, at the time of starting the generator, in order to rotate the rotation direction of the impeller 23 in an arbitrary direction, electric power is applied from the outside to the generator rotor 23d to temporarily drive it as an electric motor, and heat transfer fluid When the circulation flow direction of 26 is stabilized, the operation may be shifted to the power generation operation.

Next, Example 1 in the electric power generating apparatus using the impeller according to the present invention will be described in detail with reference to the accompanying drawings.
FIG. 2 (a) is a diagram showing a first embodiment of a power generation apparatus using an impeller according to the present invention, in which one endless shape in the power generation apparatus E1 constituting two endless circulation paths. It is a schematic diagram which shows the example which installed the impeller between the other flow path of the circulation path, and the one flow path of the other endless circulation path.

Reference numeral 23A denotes an impeller, whose structure and operation are substantially the same as those of the impeller 23 shown in FIG. The impeller 23A is an impeller that can be classified as an impulse turbine used for normal hydropower generation. For example, a Pelton turbine can be used. The impeller 23A is located at the center of rotation of the impeller 23A, and rotates and supports the impeller 23A, a cylindrical runner 23b fixed to the rotary shaft 23a, and the cylindrical runner The outer peripheral cylindrical surface 23b is constituted by a plurality of blade-like buckets 23c arranged with an opening angle radially equal from the center of the rotating shaft 23a.

25A and 25B are flow paths, and the inside of the flow paths 25A and 25B is filled with the heat transfer fluid 26 described above. The flow paths 25A and 25B are preferably substantially circular or elliptical in cross-sectional shape, but may be rectangular, triangular or semicircular. As shown in FIG. 2A, the overall shape is formed in a vertically long rectangle. As shown in FIG. 2A, the flow paths 25A and 25B are integrally formed and connected to the heat carrier fluid introduction part and the heat carrier fluid outlet part of the casing 24.

Reference numeral 27A denotes an evaporating section, that is, a heat receiving section, and the heat receiving section 27A has a structure surrounding the flow paths 25A and 25B in order to efficiently transfer heat energy to the heat transfer fluid 26. The heat receiving portion 27A is a portion that changes the phase of the heat transfer fluid 26 from the liquid phase to the gas phase. 28A is a condensing part, that is, a heat radiating part. The heat radiating portion 28A is a portion that rotates the impeller 23A to lower the temperature of the heat carrier fluid 26 that imparts kinetic energy to the impeller 23A, and changes the phase of the heat carrier fluid 26 from the gas phase to the liquid phase. In order to efficiently remove heat energy from the fluid 26, the flow channel 25A, 25B is surrounded.

When the heat receiving portion 27A is heated and the heat radiating portion 28A is cooled, the impeller 23A is driven by the temperature difference between the heat receiving portion 27A and the heat radiating portion 28A and propelled to the heat transfer fluid 26. A force is applied, and the heat carrier fluid 26 circulates in the flow paths 25A and 25B from the top to the bottom as shown in FIG. Then, due to the functions of the heat receiving part 27A and the heat radiating part 28A, the heat transfer fluids 26, 26 filled in the flow paths 25A, 25B pass through arrows B5, B6, B7 on the one hand and arrows B8, B9, B10 on the other hand. After that, the inside of the flow paths 25AS and 25B is sent. Therefore, the impeller 23A is rotated by being given rotational energy from the two paths by the heat carrier fluid 26.
The other configurations and operations of Example 1 in the power generation apparatus using the impeller according to the present invention are substantially the same as those in the above-described embodiment, and the description thereof is omitted.

Next, a second embodiment of the power generator using the impeller according to the present invention will be described in detail with reference to the accompanying drawings.
FIG. 2 (b) is a diagram showing a second embodiment of the power generator using the impeller according to the present invention, and in the power generator E2 constituting the endless circulation path, the blades are provided on both sides of the flow path. It is a schematic diagram which shows the example which installed the vehicle.

Reference numeral 23B denotes an impeller, whose structure and operation are substantially the same as those of the impeller 23 shown in FIG. Reference numeral 25C denotes a flow path, and the inside of the flow path 25C is filled with the heat transfer fluid 26 described above. When the heat receiving portion 27B is heated and the heat radiating portion 28B is cooled, the impeller 23B is driven by the temperature difference between the heat receiving portion 27B and the heat radiating portion 28B and propelled to the heat transfer fluid 26. A force is applied, and the heat carrier fluid 26 circulates and flows from above to below in the flow path 25C as shown in FIG. 2 (b). Then, due to the functions of the heat receiving portion 27B and the heat radiating portion 28B, the heat transfer fluid 26 filled in the flow path 25C is directed from the heat receiving portion 27B on the one hand in the direction of arrows B11, B12, B13, B14, and on the other hand, on the arrow B15, It is sent in the B13, B12, and B16 directions, respectively. Therefore, the impeller 23B is rotated by the heat carrier fluid 26.
The other configurations and operations of the power generation apparatus using the impeller according to the present invention are substantially the same as those of the above-described embodiment, and the description thereof is omitted.

Next, a third embodiment of the power generator using the impeller according to the present invention will be described in detail with reference to the accompanying drawings.
FIG. 3 is a drawing showing a third embodiment of the power generation device using the impeller according to the present invention, and in the power generation device E3 constituting the endless circulation path, two impellers are provided on the other side of the flow path. It is a schematic diagram which shows the example arrange | positioned adjacently.

Reference numeral 23C denotes a first impeller and 23D denotes a second impeller. Its structure and operation are substantially the same as those of the impeller 23 shown in FIG. Reference numeral 25D denotes a flow path, and the inside of the flow path 25D is filled with the heat transfer fluid 26 described above. The driving operation of the first impeller 23C and the second impeller 23D is as follows. When the heat receiving portion 27C is heated and the heat radiating portion 28C is cooled, an interaction occurs due to a temperature difference between the heat receiving portion 27C and the heat radiating portion 28C on the other side of the flow path 25D, and the heat transfer fluid 26 is generated. Propulsive force is applied, and the heat carrier fluid 26 circulates and flows from above to below as shown in FIG. And by the function of the heat receiving part 27C and the heat radiating part 28C, the heat carrier fluid 26 filled in the flow path 25D is flowed from the heat receiving part 27C in the directions of arrows B17 to B22. Therefore, the first impeller 23C and the second impeller 23D are rotated by the heat transfer fluid 26.
The other configurations and operations of the power generator using the impeller according to the present invention are substantially the same as those of the above-described embodiment, and the description thereof is omitted.

Next, a fourth embodiment of the power generator using the impeller according to the present invention will be described in detail with reference to the accompanying drawings.
FIG. 4 is a drawing showing a power generation device E4 as a fourth embodiment of a power generation device using an impeller according to the present invention, in which an impeller is installed on one side of a flow path constituting an endless circulation path, It is a schematic diagram which shows the example which installed the meandering line-shaped flow path in the other side of the flow path which comprises a circular circulation path.

Reference numeral 23E denotes an impeller, whose structure and operation are substantially the same as those of the impeller 23 shown in FIG. Reference numeral 25E denotes a flow path, and the inside of the flow path 25E is filled with the heat transfer fluid 26 described above.
The driving operation of the impeller 23E is as follows. When the heat receiving portion 27D is heated and the heat radiating portion 28D is cooled, an interaction occurs due to a temperature difference between the heat receiving portion 27D and the heat radiating portion 28D on one side, that is, the left side of the flow path 25E. As shown in FIG. 4, the heat transport fluid 26 circulates and flows from below to above as a propulsive force is applied to 26. And by the function of the heat receiving part 27D and the heat radiating part 28D, the heat carrier fluid 26 filled in the flow path 25E is flowed from the heat receiving part 27D in the directions of arrows B23 to B26. Therefore, the impeller 23E is rotated by the heat carrier fluid 26.

On the other hand, when the heat receiving portion 27D is heated and the heat radiating portion 28D is cooled, an interaction occurs due to a temperature difference between the heat receiving portion 27D and the heat radiating portion 28D on the other side, that is, the right side of the flow path 25E. A propulsive force is applied to the carrier fluid 26 and the heat carrier fluid 26 flows from below to above, but the other side of the channel 25E, that is, the right side, the channel 25E forms a meandering line, and arrows B27 to B29. Flow in the direction. This flow has a larger resistance of the flow path than one side of the flow path 25E, that is, the left side. Therefore, the heat carrier fluid 26 to which the propulsive force is given by the temperature difference between the heat receiving portion 27D and the heat radiating portion 28D easily flows in the direction of arrows B23 to B26 on the left side where the resistance of the flow path is small, and the impeller 23E. Rotate efficiently.
The other configurations and operations of the power generation apparatus using the impeller according to the present invention are substantially the same as those of the above-described embodiment, and the description thereof is omitted.

Next, a fifth embodiment of the power generator using the impeller according to the present invention will be described in detail with reference to the accompanying drawings.
FIG. 5 is a drawing showing a power generation device E5 as a fifth embodiment of a power generation device using an impeller according to the present invention, in which an impeller and a throttle valve are installed on one side of a flow path constituting an endless circulation path. FIG.

Reference numeral 23F denotes an impeller, and the structure and operation thereof are substantially the same as those of the impeller 23 shown in FIG. Reference numeral 25F denotes a flow path, and the inside of the flow path 25F is filled with the heat transfer fluid 26 described above. 29 is a throttle valve. Therefore, when the heat receiving part 27E is heated and the heat radiating part 28E is cooled, the heat transfer fluid 26 in the flow path 25F that has changed in phase from the liquid phase to the gas phase in the heat receiving part 27E flows in the flow path 25F as shown in FIG. It rises from the flow path 25F on one side and flows through the heat dissipating section 28E and the throttle valve 29 to efficiently rotate the impeller 23F. That is, the heat carrier fluid 26 flows in the directions of arrows B30 to B34. The throttle valve 29 increases the flow velocity of the heat transfer fluid 26 flowing through the basket 23c of the impeller 23F, and rotates the impeller 23F at high speed. Therefore, it manages the high power generation function.
The other configurations, operations, and the like of Example 5 in the power generation apparatus using the impeller according to the present invention are substantially the same as those in the above-described embodiment, and the description thereof is omitted.

Next, a sixth embodiment of the power generator using the impeller according to the present invention will be described in detail with reference to the accompanying drawings.
FIG. 6 is a view showing a power generation device E6 as a sixth embodiment of the power generation device using the impeller according to the present invention, in which a heat receiving portion and a heat radiating portion that also serve as a casing that accommodates the substantially disk-shaped impeller are arranged. It is a schematic diagram which shows an example, (a) is a vertical direction sectional view of the center part of (b), (b) is a horizontal direction sectional view.

23G is an impeller, the whole shape is formed in a substantially disk shape, for example, and the outer peripheral surface 23G1 has a plurality of baskets 23e. An endless annular circulation path 25G is formed between the outer peripheral surface 23G1, the heat receiving portion 27F, and the heat radiating portion 28F. This configuration is a gap formed by the inner peripheral surface of the casing as the heat receiving portion 27F and the heat radiating portion 28F and the outer peripheral surface 23G1 of the impeller 23G, and also functions as a flow path. The heat receiving part 27F and the heat radiating part 28F are fitted with the magnetic impeller 23G. When the heat carrier fluid 26 filled in the endless annular circulation path 25G flows, the baskets 23e are driven to rotate the impeller 23G in the R direction shown in the figure, for example. Then, as shown in FIG. 6, a rotating shaft 23G2 in which N poles and S poles are alternately arranged in the rotation direction is formed at the center of the impeller 23G, and the outer periphery of the rotating shaft 23G2 is coaxial with the rotating shaft 23G2. Has a generator rotor in which a plurality of coils are arranged to cover.
The other configurations, operations, and the like of Example 6 in the power generation apparatus using the magnetic impeller according to the present invention are substantially the same as those in the above-described embodiment, and the description thereof is omitted.
Further, as a modified example of the sixth embodiment, an inner permanent magnet having an N pole and an S pole is formed in a central portion of the impeller 23G in FIG. A rotating shaft (not shown) in which an external permanent magnet having N poles and S poles is also arranged around the shaft 23G2 to form a magnet coupling, and the external permanent magnet 23H is coaxial with the rotating shaft 23G2. It has the generator rotor (not shown) rotated by the arrange | positioned rotating shaft.

Next, a seventh embodiment of the power generator using the magnetic impeller according to the present invention will be described in detail with reference to the accompanying drawings.
FIG. 10 is a drawing showing a power generation device E as an embodiment of a power generation device using a magnetic impeller according to the present invention, in which a magnetic impeller is installed on one side of a flow path constituting an endless circulation path. It is an example, (a) is a horizontal sectional view, (b) is a vertical sectional view of the magnetic impeller constituting the generator provided in the power generation device E as seen from the direction of the arrows AA shown in (a). is there.

Reference numeral 23J denotes a magnetic impeller, and the magnetic impeller 23J is an impeller that can be classified as an impulse turbine used for normal hydroelectric power generation. For example, a Pelton turbine can be used. The magnetic impeller 23J is provided with a magnetic gear 23f via a tube wall of the flow path 25 below the magnetic impeller 23J disposed in the flow path 25 described later. The generator includes the magnetic gear 23f, a rotating shaft 23a that is positioned at the rotation center of the magnetic impeller 23J, and rotates and supports the magnetic gear 23f, and a generator rotor 23d. The magnetic impeller 23J has a central portion 23b. The central portion 23b is alternately magnetized with N and S poles, and the magnetic gear 23f is rotationally driven by this magnetic force. A plurality of blade-like buckets 23c are arranged on the outer peripheral cylindrical surface of the central portion 23b of the magnetic impeller 23J from the central portion 23b of the magnetic impeller 23J with a radially equal opening angle. The magnetic impeller 23J can be rotated with a low torque, and a check valve can be installed at an appropriate position so as not to reverse. In FIG. 10, the bucket 23c is a flat blade shown by a straight line in the normal direction from the central portion 23b. However, the bucket 23c is not limited to this and may be a bucket-like container. Reference numeral 23d denotes a generator rotor fixed to the rotary shaft 23a. The magnetic impeller 23J is rotated by the flow of the heat transfer fluid 26 and has a power generation function.

Reference numeral 24 denotes a casing. The casing 24 includes a bearing that supports the rotating shaft 23g of the magnetic impeller 23J, and is a fixed, substantially cylindrical container that accommodates the entire magnetic impeller 23J. Also, as shown in FIG. 10, a slight gap is set between the bucket 23c of the magnetic impeller 23J and the inner surface of the casing 24, and the magnetic impeller 23J rotates smoothly in the casing 24. Can do.

The casing 24 is provided with a heat carrier fluid introduction part 24a and a heat carrier fluid outlet part 24b on a part of its outer periphery, and the heat carrier fluid inlet part 24a and the heat carrier fluid outlet part 24b serve as an endless circulation path to be described later. It is connected to the flow path with a sealing structure.

Reference numeral 25 denotes a flow path having, for example, a substantially U-shaped circulation path, and the inside of the flow path 25 is filled with a heat transfer fluid 26 described later. The cross-sectional shape of the channel 25 is preferably substantially circular or elliptical, but may be rectangular, triangular, or semicircular. As shown in FIG. 10, the overall shape is a vertically long rectangle. As shown in FIG. 1, the flow path 25 is integrally formed and connected to the heat transfer fluid introduction part 24a and the heat transfer fluid lead-out part 24b of the casing 24.

Reference numeral 26 denotes a heat carrier fluid. The heat carrier fluid 26 is, for example, water, and is a two-phase fluid that exhibits a liquid phase or a gas phase depending on the amount of applied heat energy. The heat carrier fluid 26 is required to have a critical temperature not higher than the heat source temperature and not to be solidified within the heat radiating portion temperature or the operating temperature range. In the case of water, for example, a temperature range of 100 ° C. to 300 ° C. is applied. In FIG. 10, the heat carrier fluid 26 is a mixed fluid of a gas phase and a liquid phase in the flow path 25, 26 a indicates a liquid phase part of the heat carrier fluid 26, and 26 b indicates a gas phase part of the heat carrier fluid 26. It is. Reference numerals 26b1 and 26b2 represented by a circular shape and a substantially elliptical shape schematically show the gas phase portion 26b of the heat transfer fluid 26. The heat transfer fluid 26 as the mixed fluid of the gas phase part 26b2 and the liquid phase part 26a shown in a substantially elliptical shape is the heat transfer fluid as the mixed fluid of the gas phase part 26b1 and the liquid phase part 26a shown in a circle. Since the proportion of the gas phase portion is larger than that of the fluid 26, the heat transfer fluid 26 as a mixed fluid of the gas phase portion 26b2 and the liquid phase portion 26a shown in a substantially elliptical shape is a gas phase portion shown in a circle. Compared to the heat transfer fluid 26 as a mixed fluid of the liquid phase portion 26a and the liquid phase portion 26b1, the heat transfer fluid 26 has more latent heat, that is, transition heat.

For example, when the thin plate heat device as the heat transport device is used as the flow channel 25, an optimum effect is obtained. It is designed to transport large amounts of heat smoothly. The thin plate heat device incorporates a loop-type meandering small diameter tunnel heat pipe, and the working fluid sealed inside the loop-type meandering small-diameter tunnel heat pipe is sent through the reflux line, that is, the flow path 25. To do. The loop-type meandering thin tunnel heat pipe of the thin plate heat device needs to have sufficient strength against the internal pressure of the hydraulic fluid. A thin plate heat device that satisfies such various conditions includes the loop-type meandering thin tunnel heat pipe described above in the thin plate. A group of such unit pairs of loop-type small-diameter tunnel heat pipes are connected and communicated with each other, and are configured and integrated in a planar shape. The group of loop type small diameter tunnel heat pipes integrated in this way is hermetically sealed and vacuum degassed, and then a predetermined amount of a predetermined two-phase condensable hydraulic fluid is sealed in the heat pipe. Is structured. The thin plate heat device is composed of a welded laminate of unit thin plates and flat thin plates made of a metal having good thermal conductivity. Prior to lamination, a series of long meandering grooves are formed in advance on the welding surface of the unit thin plate. The long meandering narrow grooves may be formed by any means such as cutting, electric discharge machining, or press molding. The long meandering narrow groove is configured as a closed meandering narrow tunnel by stacking, and a predetermined amount of a predetermined working fluid is sealed in the sealed meandering narrow tunnel, thereby forming a meandering narrow tunnel heat pipe.

Reference numeral 27 denotes an evaporating part, that is, a heat receiving part, and the heat receiving part 27 has a structure surrounding the flow path 25 in order to efficiently transmit heat energy to the heat transfer fluid 26. The heat receiving part 27 is a part that changes the phase of the heat carrier fluid 26 from the liquid phase 26a to the gas phase 26b. Reference numeral 28 denotes a condensing part, that is, a heat radiating part. The heat radiating portion 28 is a portion that rotates the magnetic impeller 23J to lower the temperature of the heat carrier fluid 26 that gives kinetic energy to the magnetic impeller 23J, and changes the phase of the heat carrier fluid 26 from the gas phase 26b to the liquid phase 26a. And has a structure surrounding the flow path 25 in order to efficiently remove the heat energy from the heat transfer fluid 26.
In addition, it is good also as a structure which changes the shape of the upper side part or lower side part of the said endless circulation path, and increases flow resistance.

Next, the operation | movement etc. based on embodiment of the electric power generating apparatus using the magnetic impeller which concerns on this invention are demonstrated.
When the heat receiving portion 27 is heated and the heat radiating portion 28 is cooled, an interaction occurs due to a temperature difference between the heat receiving portion 27 and the heat radiating portion 28, and a propulsive force is given to the heat carrying fluid 26. As shown in FIG. 1, the flow path 25 is circulated and sent from below to above. And by the function of the heat receiving part 27 and the heat radiating part 28, the heat carrier fluid 26 filled in the flow path 25 is sent from the heat receiving part 27 in the directions of arrows B1 to B4. Therefore, the magnetic impeller 23J is rotated by the heat carrier fluid 26. By rotating the magnetic impeller 23J, the magnetic gear 23f is rotated by this magnetic force, and the rotating shaft 23a is also rotated. Then, the generator rotor 23d is rotationally driven. The generator rotor 23d rotates with a relatively low torque. As a result, an output voltage is generated from the generator stator (not shown). Here, the rotating shaft 23g of the magnetic impeller 23J, the rotating shaft 23a of the magnetic gear 23f, and the generator rotor 23d are arranged at positions perpendicular to the flow direction of the heat transfer fluid 26. Therefore, the heat carrier fluid 26 has a high pressure, a low flow rate, and stable power generation in the generator stator.
In FIG. 1, the heat receiving portion 27 is disposed below and the heat radiating portion 28 is disposed above. However, the heat receiving portion 27 may be disposed above and the heat radiating portion 28 may be disposed below. The rotation direction of the magnetic impeller 23J can be reversed. Further, at the time of starting the generator, in order to rotate the rotation direction of the magnetic impeller 23J in an arbitrary direction, electric power is applied from the outside to the generator rotor 23d to temporarily drive it as an electric motor for heat transfer. When the circulating flow direction of the fluid 26 is stabilized, the power generation operation may be started.
Further, as a modified example of the seventh embodiment, instead of the magnet coupling of FIG. 10, the magnetic impeller 23J may be a rotation of the generator, and the magnetic gear 23f may be a fixed generator having a plurality of coils arranged on a disk. . Further, as in the sixth embodiment, the magnet portion of the magnetic impeller 23J protrudes in the direction of the rotation axis, and the stator of the generator can be disposed on the circumference of the magnet.

As described in the sixth and seventh embodiments, the rotation of the magnetic impeller is transmitted to the rotation of the generator in a non-contact manner using a magnet, so that the rotating shaft of the magnetic impeller is sealed with a hydraulic fluid via a shaft seal. It is possible to improve the seal between the atmosphere side of the rotating shaft portion and the inside of the hydraulic fluid seal rather than projecting from the inside to the atmosphere side and connecting the rotating shaft of the generator to the rotating shaft of the magnetic impeller. Furthermore, it is possible to improve efficiency deterioration due to frictional resistance at the seal portion and reduction in seal life.

It can be applied as a small power generator using exhaust heat in a hot water supply device of an automobile or a house. For example, in the case of an automobile, the heating unit is an engine and the cooling unit is a radiator. In the case of a ship, the heating part is an engine, and the cooling part is engine cooling water or seawater. In the case of a generator and a water heater, the heating part is a turbine, and the cooling part is a pipe of hot water or tap water before heating. In the case of a personal computer or a server, the heating unit is a CPU, and the cooling unit is a fan used for a case or a power source. In the case of a thermal power plant, the heat generating part is a furnace and the cooling part is a factory cooling water or water pipe. In the case of an electric vehicle, the heat generating part is an inverter, and the cooling part is a traveling radiator or fan. In the case of hydroelectric power generation, in the case of general buildings where the heating unit is an inverter and the cooling unit is outside air, a radiator, or a fan, the heating unit is the one with the higher indoor or outdoor temperature, and the cooling unit is the one with the lower indoor or outdoor temperature. And In the case of a solar cell, the heating unit is the back of the panel, and the cooling unit is the ground or a water pipe. In the case of a fermented product such as compost, the heating unit is a different fermented product and the cooling unit is tap water.

23 impeller 23A impeller 23B impeller 23C first impeller 23D first impeller 23E impeller 23F impeller 23G impeller 23G1 impeller outer peripheral surface 23G2 rotating shaft 23H external permanent magnet 23a rotating shaft 23b cylindrical runner 23c bucket 23d Generator rotor 23e Bucket 24 Casing 24a Heat transfer fluid inlet 24b Heat transfer fluid outlet 25 Channel 25A Channel 25B Channel 25C Channel 25D Channel 25E Channel 25F Channel 25G Endless annular circulation path 26 Heat carrier fluid 26a Heat carrier fluid liquid phase portion 26b Heat carrier fluid gas phase portion 26b1 Heat carrier fluid gas phase portion 26b2 Heat carrier fluid gas phase portion 27 Heat receiving portion 27A Heat receiving portion 27B Heat receiving portion 27C Heat receiving portion 27D Heat receiving portion 27E Heat receiving portion 27F Heat receiving portion 28 Heat radiating portion 28A Heat radiating portion 28B Heat radiating portion 28C Heat radiating portion 28D Heat radiating 28E radiating portion 28F heat radiating portion 29 throttle valve

Claims (5)

In a configuration including an endless circulation path filled with a heat transfer fluid that is flowed by a propulsive force due to a temperature difference between the heat receiving portion and the heat dissipation portion, the endless circulation path, and the flow direction of the heat transfer fluid A power generator using an impeller comprising an impeller having a generator rotor arranged in a direction perpendicular to the rotor and fixed to the rotor. The power generation apparatus using an impeller according to claim 1, wherein the endless circulation path is a single abbreviated circulation path. The power generation device using an impeller according to claim 1, wherein the endless circulation path includes a plurality of endless circulation paths. The power generation apparatus using an impeller according to claim 1, wherein the endless circulation path is an endless annular circulation path. 2. A power generator using an impeller according to claim 1, wherein a throttle valve is interposed in the endless circulation path.

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