JP6526483B2 - Water wheel equipment - Google Patents

Description

  The present invention relates to a water turbine device.

  Conventionally, with the spread of renewable energy, high-efficiency power generation has been demanded, and for example, interest in small-scale hydroelectric power generation is increasing. In this type of small-scale hydropower generation, power generation is performed using a water turbine device and using various water flows such as small and medium rivers and waterways.

  In addition, small hydroelectric power generation using this type of water turbine device can be installed at any place where there is a water source, and fluid such as water circulates at a height difference from a high position to a low position such as underground, Energy can be recovered as electric power by rotating the impeller of the water turbine apparatus with the water flow at the time of falling to generate electric power.

  In such a small hydroelectric power generation, a water turbine rotates a water flow, and a generator is driven by the water turbine to obtain electric power. Such a hydroelectric power generation apparatus is required to be able to efficiently generate power even with a small water flow, and further higher efficiency and miniaturization are required.

  As a water turbine apparatus used for this kind of hydroelectric power generation, for example, in Patent Document 1, a generator is driven by the water turbine apparatus, and an impeller having a plurality of blade members is disposed inside a case of the water turbine apparatus. In this case, there is disclosed a water wheel apparatus provided with a water supply pipe for supplying water to the blade member from the outer side of the impeller in the side wall in this case, and a water discharge pipe for discharging water.

JP, 2014-11883, A

  However, in the water turbine apparatus described in Patent Document 1, since water is supplied to the blade members from the outer side of the impeller, part of the water supplied from the water supply pipe to the blade members is to the blade members. There is a problem that the water is scattered to the outside of the impeller without reaching all, and the entire amount of water is not supplied uniformly to the blade members, thereby reducing the efficiency of power generation.

  An object of the present invention is to provide a water turbine device which is suitable for being installed at a place where water flows such as small and medium-sized rivers, waterways and the like, and can generate electric power with high efficiency and can be miniaturized.

The water turbine apparatus according to the present invention comprises an impeller having a plurality of radially arranged vane members, a rotary shaft member rotatably supporting the impeller, and a fluid for causing a fluid to flow toward the vane members of the impeller. In the water wheel device comprising the inflow means,
The fluid inflow means includes a hollow piping portion provided through the central portion of the impeller and the rotary shaft member, and a fluid inflow portion connected to the piping portion to allow the fluid to flow into the piping portion. It comprises an opening formed in the piping part located at the center of the impeller, and a fluid guiding part provided in the piping part and guiding the fluid flowing into the piping part to the opening.
The rotary shaft member includes a rotary shaft member support portion rotatably supported and fixed to the piping portion,
Fluid flowing into the pipe portion by the fluid inflow portion, is flowed from the opening through the fluid guide portion to the central portion end of the blade member of the impeller, of the blade members the inflowing fluid It is characterized in that it is received by the surface and the impeller is rotated.

  In the water turbine apparatus according to the present invention, the blade member may be formed by continuously forming a blade portion linearly extending in the radial direction of the impeller and a blade portion extending in the circumferential direction of the impeller. It is characterized.

  The water turbine apparatus of the present invention also includes a generator driven by the rotational force of the impeller rotated by the inflow of the fluid into the blade member, and a driving force transmission means for transmitting the rotational force of the impeller to the generator. And providing.

  Since the water turbine apparatus of the present invention is configured as described above, it is suitable for being installed at a place where water flows such as small and medium-sized rivers and waterways, and can generate electric power with high efficiency and can be miniaturized. An apparatus can be provided.

It is a longitudinal section showing the composition of the water turbine device of the example of the present invention. It is a figure which shows the longitudinal cross-sectional view of the impeller in the water turbine apparatus of the present Example of FIG. It is a figure which shows the structure of the modification of a structure of the water turbine apparatus of the Example of this invention. It is a figure which shows the structure of the piping part of another modification of the structure of the water turbine apparatus of the Example of this invention with a cross-sectional view. FIG. 5A is a cross-sectional view of the piping portion of FIG. 4, FIG. 5A illustrates one state of the piping portion, and FIG. 5B illustrates another state of the piping portion.

  Hereinafter, a water turbine apparatus according to an embodiment of the present invention (hereinafter, referred to as a present embodiment) will be described based on the drawings. The same configuration will be described below using the same reference numerals.

  FIG. 1 is a schematic perspective view showing the structure of a water turbine apparatus according to an embodiment of the present invention. Further, FIG. 2 is a view showing a longitudinal sectional view of the impeller in the water turbine apparatus of the present embodiment of FIG.

  The water turbine apparatus 100 according to the present embodiment includes an impeller 10 having a plurality of radially arranged vane members 1, a rotary shaft member 20 rotatably supporting the impeller 10, and blade members 1 of the impeller 10. It comprises the fluid inflow means 30 which makes the fluid Q flow in.

  Further, the fluid inflow means 30 is connected to the hollow piping portion 32 provided penetrating the central portions of the impeller 10 and the rotary shaft member 20, and the piping portion 32 so that the fluid Q can be introduced into the piping portion 32. A fluid inflow portion 31 to be flowed in, an opening portion 35 formed in a piping portion 32 positioned at a central portion of the impeller 10, and the piping portion 32 provided therein, the fluid Q flowing into the piping portion 32 is opened And a fluid guiding portion 33 for guiding the portion 35.

  Further, in the water turbine apparatus 100 of the present embodiment, the rotation shaft member 20 is provided with the rotation shaft member support portion 22 rotatably supported and fixed to the piping portion 32.

  Then, the fluid Q which has flowed into the piping portion 32 by the fluid inflow portion 31 flows in from the opening 35 via the fluid guiding portion 33 from the central end portion 2 of the blade member 1 of the impeller 10 and flows The fluid Q is received by the inner surface 3 of the blade member 1 and the impeller 10 is rotated.

  As described above, the configuration of the water turbine apparatus 100 according to the present embodiment includes the hollow piping section 32 having the function of fluid inflow in the fluid inflow means 30 penetrating the central portion of the impeller 10 and the rotary shaft member 20. Since the fluid is introduced from the end of the central portion of the member 1, that is, from the central portion of the impeller 10, it is completely different from the conventional method of inflowing the fluid into the blade member. Economically, it is possible to provide a water turbine device that can generate power with high efficiency and can be miniaturized. Hereinafter, the structure of the water turbine apparatus 100 of a present Example is explained in full detail.

  In the impeller 10, a plurality of blade members 1 of the same shape are arranged radially as shown in FIG. 2, and circular side plates 12 and 14 are arranged on both sides of the blade member 1, and these blade members 1 and 12 , 14 are connected by the side plate connection means 50. Here, the blade member 1 is formed in a semicircular arc shape, and a reservoir 4 for storing the fluid Q is formed. The storage portion 4 of the blade member 1 is not limited to the configuration other than the present embodiment. For example, the structure shown in FIG. 3 described later may be used.

  In the impeller 10, the fluid Q is introduced into the central end 2 with a predetermined water pressure from the fluid inlet 31 by the above configuration. Under the present circumstances, the fluid Q which flowed in contacts the inner surface 3 of the blade member 1 by the side of the center part edge part 2, and it is stored by the storage part 4 after that. Here, the rotational force R of the blade member 1 is caused by the fluid force (referred to as drag) of the fluid Q that strikes the inner surface 3 of the blade member 1 on the central end 2 side and the gravity of the fluid Q stored in the reservoir 4. Work, and the impeller 10 is rotated.

  Here, the number of the blade members 1 is 16 in the present embodiment, and the arc is formed in a semicircular shape, but the number and shape of the blade members 1 generate the rotational force R as described above. If it is possible, another one may be selected as appropriate.

  The side plate connecting means 50 is a rod-like rod member 52 disposed to penetrate through the blade member 1 and the side plates 12 and 14 and a rod member 52 penetrating the through members like nuts on both side plates 12 and 14. And the wing members 1, the side plates 12, 14 and the rod member 52 are connected by tightening the tightening members 54, 56.

  At this time, the rod member 52 is made to penetrate between the side plates 12 and 14 and the tightening member 56 to provide a circular side plate 25 of the rotary shaft member 20 described later, and the side plates 12 are tightened by tightening the tightening members 54 and 56. 14 and the side plate 25 are connected, whereby the impeller 10 and the rotating shaft member 20 are connected.

  Here, although the plate member made of metal is used as the blade member 1 and the side plates 12 and 14, for example, other materials may be used as long as the effects of the present invention can be obtained. For example, the reinforcement of the impeller 10 can be made rigid by providing a plurality of the side plate connection means 50 described above concentrically and symmetrically on the impeller 10.

  Further, the rotary shaft member 20 is a rim member formed in a hollow cylindrical shape, in which the circular side plate 25 and the circular side plate 23 and the side plate 24 are fixed by welding or the like, and the center of the impeller 10 And a rotary shaft member supporting portion 22 provided on the portion. The circular side plates 23 and 24 are made of, for example, metal. Thereby, the impeller 10 is reinforced. Here, the side plate 24 is inclined toward the outside of the impeller 10 so as to be smaller in diameter, thereby providing stable rotation of the impeller 10 and to the side plate 24 of the driving force transmission means 94 described later. Can prevent interference from contact.

  Further, as the rotating shaft member supporting portion 22, for example, a bearing member such as a bearing comprising a bearing 22A and a bearing housing 22B is used. Thereby, the piping part 32 mentioned later is penetrated, it is set as the structure made to support by the piping part 32, and the impeller 10 is rotatably supported by contacting and providing the impeller 10 in the outer periphery. For this reason, the rotation shaft member support portion 22 is a rotation shaft of the impeller 10. Here, the rim member connected to the impeller 10 is also provided in contact with the impeller 10, and is supported rotatably together with the impeller 10.

  The rotating shaft member 20 has the above configuration, and is provided on both sides of the impeller 10 so as to be connected to the impeller 10. Thus, the impeller 10 is reinforced by the rotary shaft member 20 and is rotatably supported with the rotary shaft member support 22 of the rotary shaft member 20 as a rotary shaft.

  Here, the rotary shaft member support portion 22 is provided slidably on the outer periphery of the piping portion 32, but the locking members 42, 44, 46, 48 are provided on both sides of each rotary shaft member support portion 22 respectively. By fixing on the piping part 32, the slid rotational shaft member support 22 is locked by the locking members 42, 44, 46, 48, and the slide of the rotational shaft member support 22 is limited.

  Thereby, stable rotation of the impeller 10 is realized. Here, although the locking members 42, 44, 46, 48 may be formed in an annular shape and fixed on the piping portion 32, they may be formed in a projecting shape intermittently provided in the circumferential direction for forming the piping portion It may be fixed on 32. The locking members 42, 44, 46, 48 are provided so as not to interfere with the side plates 12, 14 or the rim member.

  The pipe portion 32 of the fluid inflow means 30 is provided to penetrate the central portion of the impeller 10 and the rotary shaft member 20. The pipe portion 32 is a hollow metal pipe, and on one side is provided with a fluid inflow portion 31 for allowing the fluid from the water source such as small and medium-sized rivers and waterways to flow down naturally. The fluid Q is made to flow from one side of the piping portion 32 into the inside 32 of the piping.

  Further, on the other side in the piping portion 32, a fluid guiding portion 33 is provided so as to seal the other side in the piping portion 32. The fluid guide portion 33 is made of, for example, metal, and is fixed in the piping portion 32 by welding or the like. As a result, the fluid Q flowing from one side in the piping portion 32 is received by the fluid guide portion 33 side surface (left surface in FIG. 1) and is guided to the opening 35 described later. Here, the shape of the surface on the fluid guide 33 side can be more smoothly guided to the opening 35 of the fluid Q by forming a curved shape along the fluid streamline.

  Further, the opening 35 is formed in the piping portion 32 located at the center of the impeller 10. According to this opening 35, the fluid Q which has flowed into the inner portion 32 of the pipe from one side of the pipe 32 by the fluid inflow means 31 passes through the fluid guiding portion 33, and the central end of the blade member 1 of the impeller 10 The fluid Q will be flowed into 2.

  Here, as shown in the drawing, the opening 35 may be provided with a plurality of plate members 38 disposed in parallel in the axial direction of the piping portion 32 at predetermined intervals. That is, the opening 35 is formed in a slit shape. According to the plurality of plate members 38, when the fluid Q flowing into the piping portion 32 is discharged from the opening 35, the fluid Q flows out between the plate members 38. And the fluid Q can be distributed uniformly.

  The water turbine apparatus 100 of the present embodiment also transmits the rotational force of the impeller 10 driven by the rotational force of the impeller 10 rotated by the inflow of the fluid Q into the blade member 1 and the rotational force of the impeller 10 to the generator 90 Driving force transmitting means 80 are provided.

  In the driving force transmitting means 80, a first driving force transmitting member 92 for transmitting rotational power using a gear such as a sprocket is provided on the outer surface of the rotary shaft member 20 on one side (left side in FIG. It is connected with the rotating shaft member 20 on one side by fastening means such as 87 and nuts 86, 88 and the like. Thus, with the rotation of the impeller 10, the driving force transmission member 92 is rotated via the rotation shaft member 20.

  Further, a second driving force transmission member 94 for transmitting rotational power of the first driving force transmission member 92 in contact with the outer periphery of the first driving force transmission member 92 is provided, and the second driving force transmission is further provided. The member 94 is connected to a generator 90. As a result, the rotational power of the first drive power transmission member is transmitted to the generator 90 via the second drive power transmission member 94, and the generator 90 generates electric power by the transmitted rotational power.

  Next, the procedure of the hydraulic power generation in the water turbine apparatus 100 of the present embodiment having the above-described configuration will be described.

  First, the water turbine apparatus 100 is installed at a generation location of water flow such as small and medium-sized rivers and waterways, and the fluid Q which naturally flows down from the water flow from the fluid inflow portion 31 of the fluid inflow means 30 is supplied into the piping portion 32.

  Next, the fluid Q that has flowed into the piping portion 32 passes through the fluid guiding portion 33 and from the opening portion 35 formed in the piping portion 32 located at the center portion of the impeller 10, a plurality of blades of the impeller 10 It flows out to the central end 2 of the member 1.

  Next, the fluid Q that has flowed out to the central end 2 of the blade member 1 strikes the inner surface 3 of the blade member 1 and is stored in the reservoir 4 formed in the blade member 1. Here, since the fluid Q flowing into the piping portion 32 is uniformly supplied to the blade member 1, all the inflowing fluid is used for power generation by the generator 90.

  Here, the rotational force R acts on the blade member 1 by the drag force of the fluid Q that hits the inner surface 3 of the blade member 1 on the central end portion 2 side and the gravity of the fluid Q stored in the reservoir 4, and the impeller 10 It will be rotated. Then, by continuously flowing the fluid Q into the piping portion 32, the rotational force R of the impeller 10 continues to be generated, whereby the impeller 10 continues to rotate.

  By the rotation of the impeller 10, the blade member 1 storing the fluid Q is rotated, and the fluid Q is discharged outward from the circumferential end 5 of the blade member 1 according to the rotational position.

  On the other hand, the rotational power is transmitted to the drive power transmission means 92 connected to the impeller 10 by the rotation of the impeller 10 described above, and the rotational power is transmitted to the generator 90 through the drive power transmission means 94. Be Then, power generation is performed based on the rotational power transmitted by the generator 90.

  In the water turbine apparatus 100 of the present embodiment, since the hydroelectric power generation is performed as described above, the whole amount of the fluid Q flowing into the piping portion 32 is supplied to the blade member 1, and the hydraulic power generation is performed with high efficiency. be able to.

  In addition, since the water turbine apparatus 100 of the present embodiment has the above-described configuration, a sufficient amount of power generation can be obtained even when the output from the water flow to the opening 35 of the fluid Q from the water flow is low. The present invention can be effectively applied to a gentle stream of water, that is, a small spot of height difference. In a water source with a large difference in elevation, the hydraulic pressure of the fluid Q naturally flowing down from the water source becomes larger, so that high power generation efficiency can be easily obtained.

  Further, since the water turbine apparatus 100 of the present embodiment has the above-described configuration, it is possible to reduce the diameter of the impeller 10 and obtain high power generation efficiency, thereby providing the water turbine apparatus miniaturized by high efficiency power generation. Can.

  In addition, even if a small fish or the like present in a river or the like is drawn into the water wheel apparatus 100 by making the output of the fluid Q low, the water wheel apparatus 100 of the present embodiment discharges the small fish without causing damage. It is preferable in terms of the environment as it can be

  In addition, as described above, the water turbine apparatus 100 according to the present embodiment can configure each element with a metal plate or the like, and can be economically manufactured because of its simple structure.

  Since the water turbine apparatus of the present invention is configured as described above, it is suitable for being installed at a place where water flows such as small and medium-sized rivers, waterways, etc., and provides a water turbine apparatus capable of generating power with high efficiency and miniaturized. can do.

  Moreover, the water turbine apparatus of this invention may be comprised as shown in FIG. FIG. 3 is a view showing the configuration of a modification of the configuration of the water turbine apparatus of the embodiment of the present invention. Although the blade member 1 shown in FIG. 3 has a predetermined thickness, it is shown by a single line for convenience of explanation. In this modification, the blade members 1 are eight in number, and the blade portion 6 linearly extended in the radial direction of the impeller 10 and the blade portion 7 extended in the circumferential direction of the impeller 10 are continuous. It is formed. In addition, as shown in the figure, the reservoir 4 is formed between the blade 6 and the blade 7.

  In the water turbine apparatus in this modification, as in the example shown in FIG. 2, the fluid Q flowing into the piping section 32 is transferred from the opening 35 to the blade section 1 from the central end 2 of the blade 1 of the impeller 10. To flow. Under the present circumstances, the fluid Q which flowed in contacts the surface of the blade part 6, and is stored by the storage part 4. As shown in FIG.

  The same effects as those of the above-described embodiment can be achieved by the water turbine device according to the configuration of this modification. Furthermore, according to this modification, since the configuration of the blade portion 6 is simplified, there is an advantage that it can be manufactured inexpensively. Further, in the case of this modification, there is an advantage that more fluid can be stored in the storage unit 4.

  Moreover, the piping part of the water turbine apparatus of this invention may be comprised as shown to FIG. 4, FIG. FIG. 4 is a cross-sectional view showing the configuration of a piping section of another modification of the configuration of the water turbine apparatus of the embodiment of the present invention, and FIG. 5 is a cross-sectional view of the piping section of FIG. 5 (a) shows one state of the piping part, and FIG. 5 (b) shows another state of the piping part.

  In this modification, an internal piping portion 39 is provided inside the piping portion 32. The inner piping portion 39 has an outer diameter smaller than the inner diameter of the piping portion 32 so that the inside of the piping portion 32 can rotate. Further, a fluid guide 33 is provided on one side (right side in the figure) opposite to the fluid guide 33 of the internal piping 39. In addition, a plurality of plate members 36 are attached to the internal piping portion 39 by welding or the like.

  The fluid guide portion 33 is provided with a rotation drive mechanism 99 that rotates in a crank manner, and the piping portion 39 is rotated via the fluid guide 33 by the rotation of the rotation mechanism 99. Is configured.

  Further, in the state shown in FIG. 5A, the internal pipe 39 is an opening 35 because the opening 35 of the pipe 32 and the opening 37 of the internal pipe 39 substantially coincide with each other. In this state, the fluid pressure of the fluid Q is not increased and is discharged to the blade member 1 because it is not closed by the portion 37.

  Further, FIG. 5 (b) shows a state in which the internal piping portion 39 is rotated by the rotation drive mechanism 99. The plate member 36 is formed to be inclined with respect to the piping portion 32. The opening 35 of the piping portion 32 is partially closed and narrowed by the opening 37. As a result, the fluid Q discharged to the blade member 1 is reduced and the water pressure is increased. Further, as the plate member 36 is inclined, the direction of the fluid Q discharged to the blade member 1 is changed as shown in the figure. In this manner, by changing the inclination of the plate member 36 and the water pressure of the fluid Q by the rotation mechanism 99, it is possible to adjust the water pressure and the outflow direction of the fluid Q that hits the blade member 1. Further, according to this rotary drive mechanism 99, at the installation site of the water turbine device, the fluid etc. discharged to the blade member 1 by using the rotary drive mechanism 99 according to the operation status of the water turbine device at the site. Since the water pressure of Q and the outflow direction can be appropriately adjusted, it is possible to provide a water turbine device suitable for on-site use.

  Q: fluid, 1: blade member, 2: central end of blade member, 3: inner surface of blade member, 4: reservoir, 10: impeller, 20: rotary shaft member, 30: fluid inflow means, 31 ... fluid inflow portion, 32 ... piping portion, 33 ... fluid guiding portion, 35 ... opening portion, 100 ... water wheel device.

Claims (3)

A watermill apparatus comprising: an impeller having a plurality of radially arranged vane members; a rotary shaft member rotatably supporting the impeller; and fluid inflow means for causing fluid to flow toward the vane members of the impeller In
The fluid inflow means includes a hollow piping portion provided through the central portion of the impeller and the rotary shaft member, and a fluid inflow portion connected to the piping portion to allow the fluid to flow into the piping portion. It comprises an opening formed in the piping part located at the center of the impeller, and a fluid guiding part provided in the piping part and guiding the fluid flowing into the piping part to the opening.
The rotary shaft member includes a rotary shaft member support portion rotatably supported and fixed to the piping portion,
Fluid flowing into the pipe portion by the fluid inflow portion, is flowed from the opening through the fluid guide portion to the central portion end of the blade member of the impeller, of the blade members the inflowing fluid Receiving on the surface and rotating the impeller
Water wheel and wherein the.   The water turbine apparatus according to claim 1, wherein the blade member is formed by continuously forming a blade portion linearly extending in a radial direction of the impeller and a blade portion extending in a circumferential direction of the impeller. Water turbine device characterized by   The water turbine apparatus according to claim 1, wherein the generator driven by the rotational force of the impeller rotated by the inflow of the fluid into the blade member, and the drive power transmission transmitting the rotational force of the impeller to the generator And a water turbine apparatus characterized by comprising:

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