JPS6119979A - Hydraulic device - Google Patents

Abstract

PURPOSE:To make a float negating antitorque possible to be installed in a stream direction as well as to make it usable even at a shallow river and its width is narrow, by making up a hydraulic turbine so as to be floatable, while setting up a rotary shaft of the turbine in a rectangular direction with a flow of water. CONSTITUTION:A generating set 4 is constituted so as to float on the surface of the water by itself. This generating set 4 is constituted of a generator 6 and a pair of hydraulic turbines 7 and 7. The generator 6 is formed into flat, while a rotary shaft is set up in a rectangular direction with a flow of water. Each of these paired hydraulic turbines 7 and 7 is installed at both sides of this rotary shaft. And, a float 8 is projectingly installed toward the upstream side from a stationary part of this generator 6. With this float 8, antitorque due to rotation of these turbines 7 and 7 is made so as to be negated.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a hydraulic device such as a generator that generates power by utilizing the flow of water while floating on the water surface.

(Prior Art) Hydroelectric devices that can easily generate electricity are sometimes used in places where there is no power source, such as campgrounds and undeveloped areas. Such a device is shown, for example, in Japanese Utility Model Application Publication No. 57-206779.

In this configuration, a generator floating on the river is provided, and a propeller water wheel is provided which is interlocked and connected to the generator and has an axis parallel to the direction in which water flows.

Further, a float is provided to protrude from the generator in a direction perpendicular to the axial direction of the propeller-turbine so as to prevent the generator from rotating together with the propeller-turbine, that is, to cancel out the counter torque of the propeller-turbine. .

(Problems to be Solved by the Invention) In the above configuration, since the propeller water turbine is configured to be submerged underwater, there is a risk that the propeller water turbine may hit the river bed in a shallow river area.

Furthermore, as the generation capacity of the generator increases, the reaction torque of the water turbine also increases, and in this case, it is conceivable to increase the amount of protrusion of the float in order to cancel out this reaction torque. However, since this float protrudes in the direction perpendicular to the axial direction of the propeller-turbine, that is, in the river width direction, increasing the amount of protrusion increases the width of this device, and as a result, the width of the river becomes narrower. However, there is also the possibility that it will be difficult to use this device.

(Object of the Invention) This invention was made in view of the above-mentioned circumstances, and aims to provide a hydraulic device that can be used even in places where rivers are shallow and narrow.

(Structure of the Invention) The present invention for achieving the above object is characterized in that a water wheel is formed to float on the water surface, and this water wheel can rotate about a horizontal axis in a direction substantially perpendicular to the flow of water. The point is that the float projects from the stationary part of the output means toward the upstream side.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

1 to 9 show a first embodiment.

In FIGS. 1 and 2, 1 is a river, 2 is a right bank, 3 is a left bank, and 4 is a power generation device which is a hydraulic power device.

The power generation device 4 includes a generator 6 as an output means, and a pair of water turbines 7 arranged on the left and right sides of the generator 6 and rotated by the flow of water.
7, and a float 8 protruding from the power generation unit 116 as described above so as to cancel out the counter torque when the water turbines 7 and 7 rotate. The power generating device 4 is configured to float on the river 1, and in the illustrated example, the power generating device 4 is moored to the right bank 2 by a rope 9.

In particular, the generator 6 will be explained with reference to FIGS. 3 and 4.

Reference numeral 11 denotes a casing as a stationary part, and this casing 11 is formed by stacking a pair of flat resin bowl-shaped bodies 12 and 12 and screwing them together, and has a floating structure due to the space created inside. A rotating shaft 14 serving as a rotating portion is supported by the casing 11 via a resin bearing 13. This rotating shaft 14 is made of metal such as stainless steel. 15 is an oil seal.

A rotor 17 is supported on the -F rotating shaft 14 . The rotor 17 has a permanent magnet 18 on its outer periphery, and a stator 19 is attached to the casing 11 in correspondence with the permanent magnet 18.
can be installed. Further, a coil 20 is wound around the stator 1'9, and a cord 22 is drawn out from the coil 20 via two rectifiers.

1. The stator 19, coil 20, and rectifier 21 are all covered with a resin coating for waterproofing.

In addition, a plug 23 for draining water is provided at the bottom of the casing 11.
are commercially available as screws.

In particular, the water turbine 7.7 will be explained with reference to FIGS. 3 and 4.

Each of the water turbines 7 is made of polystyrene foam and is a solid integrally molded product. The water turbine 7 has a circular base plate 26, and a plurality of inner blades 27 are protruded from one side of the circular base plate 26 facing the generator 6 at equal intervals in the circumferential direction. Furthermore, a plurality of outer blades 28 are protruded from the other surface of the circular substrate 26 at equal intervals in the circumferential direction.

In the above case, the water wheel 7 may be made of resin and have a hollow structure, or may be made of wood, and either of them may be configured to float on water.

Each of the water turbines 7 is supported at an end of the rotating shaft 14 coaxially with the rotating shaft 14 via a support means 30 . Both waterwheels 7 above
, 7 are formed symmetrically with respect to the generator 6. Therefore, the pressure that each water turbine 7 receives from the flowing water becomes equal.

Therefore, both water turbines 7.7 rotate about axes that are substantially perpendicular to the flow of water and horizontal.

Regarding the support means 30, a pair of support holes 31, 31 are formed at each end of the rotating shaft 14, respectively, passing through in the radial direction. These support holes 31.31 are connected to the rotation axis 1.
4 and are formed so as to be offset in the axial direction and intersect at right angles. Support pieces 32 made of metal such as stainless steel are fitted into these support holes 31, respectively. On the other hand, a cylindrical post 34 made of urethane resin and having a cross-shaped cross section is embedded on the axis of the circular base plate 26 of the water turbine 7. This cylindrical post 34 has a circular flange 34a at one end and is formed to have high rigidity. The end of the rotating shaft 14 is fitted into the cylindrical post 34 together with the supporting pieces 32 and 32, and the water wheel 7 and the cylindrical post 34 are screwed to the end of the rotating shaft 14.

The generator 6 and the water turbine 7 are configured to float on the water surface due to their combined buoyancy. In this case, the generator 6
is cooled in its submerged part.

Further, even if the generator 6 and the water turbine 7 are turned upside down, their functions are the same.

Further, the outer circumferential surface of the circular substrate 26 is formed to protrude further in the radial direction than the outer circumferential surface of the generator 6.

That is, when the circular substrate 26 is transferred on land and the generator 6 and water turbine 7 are moved together, the generator 6 is configured not to come into contact with the moving surface.

With particular reference to Figures 3 and 5 to 7, 'R
The flow float 8 will be explained.

A support pipe 35 having a circular cross section is provided to protrude from the casing 11 of the generator 6 toward the upstream side of the river 1. Further, a float main body 36 is attached to the protruding end of the support pipe 35 so as to be rotatable around the axis of the support pipe 35. The float main body 36 is prevented from being removed from the support pipe 35 via a detachable retaining pin 35a.

To explain the connecting portion between the casing 11 and the support pipe 35, a locking pin 37 is attached to the end of the support pipe 35.
can be installed. Meanwhile, connecting plates 38, 38 are formed on each of the bowl-shaped bodies 12, 12 and protrude in the radial direction.

The locking pin 37 is attached to the joint surface of both connecting plates 38 and 38.
A locking hole 39 into which the end of the support pipe 35 is fitted is also formed. The end of the support pipe 35 and the locking pin 37 are fitted into the locking hole 39, and both connecting plates 38.3
The support pipe 35 is connected to the casing 11 by tightening the protruding end of the support pipe 8 with the band 40. On the other hand, the upstream end of the support pipe 35 is connected to the rope 9.

The cord 22 passes through the support pipe 35 and is pulled out to the outside, where it is connected to the support pipe 3 via the locking device 41.
After being supported by 5, it is connected to a light bulb or the like (not shown) via a coupler 42.

The float main body 36 is made of polystyrene foam and is a solid integrally molded product. In the illustrated example, this float body 36 is
A straight blade 44 that floats along the water surface, a right bank blade 45 that protrudes from the lower surface of the straight blade 44 and is located underwater, and a left bank blade 46 that projects from the upper surface of the straight blade 44 and is located above the water surface. Consists of. In addition, the above-mentioned straight blade 44
The two lower surfaces are both shaped like the bottom of a ship, and the right and left bank blades 45, 46 each have an airfoil-shaped cross section.

When the water turbines 7, 7 rotate due to the flow of water (arrow A in Fig. 5), the casing 11 of the generator 6 tries to rotate together with the water turbines 7, 7, but the float 8 11 and cancels out the counter torque when the water wheel 7.7 rotates.

In case 2, as the speed of flowing water increases, the water wheel 7.
Although the counter torque of the float 7 also increases, the pressure of the water that tends to float the straight vane 44 also increases against the lower surface of the straight vane 44, so that the float 8 is prevented from sinking. As a result, the water line (imaginary line B in FIG. 5) of the float 8 is kept almost constant.

The right bank blade 45 and the left bank blade 46 of the float main body 36 are formed to be inclined with respect to the water flow direction. Then, the power generation device 4 is floated on the shore of the right bank 2 where it is moored, and then the float main body 3
6 to position the right bank blade 45 in the water,
Due to the flow of water to this right bank blade 45 (arrow C in Fig. 6)
, the power generation device 4 is automatically guided away from the right bank 2 to which it is moored and toward the center of the river I where the flow is strong. When the force of the right bank blade 45 trying to move the power generation device 4 away from the right bank 2 and the force of the rope 9 trying to pull the power generation device 4 back to the right bank 2 are balanced in the river width direction, this power generation device 4 It is held in that position.

In the above case, the moment around the support pipe 35 applied to the right bank blade 45 by the flowing water (Fl
) is the moment due to the buoyancy of the straight blade 44 (
The float main body 36 is configured to balance the F2 and the product of F2 and 2 shown in the same figure.And when the right bank blades 45 guide the power generation device 4 toward the center of the river I as described above, The moment balance prevents the float body 36 from freely rotating about the support pipe 35 under pressure from the flowing water.

Next, when the power generation device 4 is moored to the left bank 3, by rotating the float body 36 so that the left bank blade 46 is located in the water (as shown by the two-dot chain line in FIGS. 6 and 7), The power generation device 4 is guided away from the left bank 3 and closer to the center of the river I, and is held at that position.

In the above case as well, the balance of moments in the float body 36 as described above prevents the float body 36 from freely rotating around the support pipe 35.

Furthermore, if the float main body 36 is rotated to position the straight vane 44 in the water (as shown by the dashed line in FIG. 7), the power generator 4 will travel straight because the straight vane 44 is parallel to the direction of water flow. The blades 44 are guided to a position parallel to the water flow direction.

In the above case, since the rectilinear blades 44 are not subjected to any lateral load by the flowing water, the float body 36 is prevented from freely rotating around the support pipe 35.

In the above case, the float main body 36 may have a hollow structure made of resin or may be made of wood.

According to the above configuration, even when the power generation device 4 is moored to the shore, if the power generation device 4 is floated on the shore and the float main body 36 is set in a desired attitude, the power generation device 4 can be moved to the river.
It is possible to move it to the center where the current is strong and hold it there. Moreover, in this case, selecting the desired attitude of the float body 36 is simply a matter of moving the float body 36 to the support pipe 35.
It is sufficient to rotate the float body 36 around the support pipe 35, that is, there is no need to fix the float body 36 to the support pipe 35, so handling thereof is easy. In this case, when the float 8 is fixed to the casing 11 and the mooring position is changed from the right bank 2 to the left bank 3, for example, the generator 6. The water turbine 7 and the float 8 may be turned upside down integrally.

8 and 9, these figures show the storage state when the power generation device 4 having the above structure is carried. That is, this power generation device 4 is disassembled into each component. and,
For compactness, both water turbines 7.7 have their outer blades 2
8 are formed so that they can be engaged with each other from the axial direction, and in this engaged state, these water turbines 7.7 are stored in the bottom of the storage case 48. In this case, since the circular substrate 26 is largely deviated in the axial direction, the outer blade 26
It is possible to increase the amount of engagement between 8 pieces, and therefore,
These can be stored more compactly. Moreover, the generator 6 and the float 8 are stored above the water wheel 7.7, and the support pipe 35 is located at the corner of the storage case 48.
is stored.

Note that although the above is based on the illustrated example, the power generation device 4 may be replaced with a hydraulic pump or the like.

FIG. 10 to FIG. 13 show other embodiments, and the different configurations from the above embodiments will be explained.

FIG. 10 shows a second embodiment, in which a rubber tire 49 is fitted onto the outer peripheral surface of the circular base plate 26 of each water turbine 7.

According to this configuration, when the generator 6 and the water turbine 7 are moved integrally on land, the tires 49 buffer the shock received from the moving surface.

Note that, as shown by the two-dot chain line in the figure, if the outer edge of each outer blade 28 is formed to gradually incline inward in the radial direction as it moves outward in the axial direction of the water turbine 7, Even if they are somewhat similar during movement, the outer blades 28 are prevented from coming into contact with the moving surface. Therefore, the outer blade 28 can be protected during these moving operations.

FIG. 11 shows a third embodiment, in which the power generation device 4 has a pair of left and right generators 6.6, and a water wheel 7 is provided so as to be sandwiched between the two generators 6.6.

FIG. 12 shows a fourth embodiment, in which a power generation device 4 has three generators 6 on the same axis, and a water wheel 7 is provided so as to be sandwiched between each of the generators 6.

FIG. 13 shows a fifth embodiment, in which a power generation device 4 has a pair of generators 6.6 on the same axis, and a water turbine 7 is provided so as to sandwich each of the generators 6.

(Example of use) FIG. 14 shows an example of use of the power generation device 4, in which a plurality of power generation devices 4 are connected in a row along the flow of the river I.

FIG. 15 shows another example of the use of the power generation device 4, in which a rope 9 is passed between the right bank 2 and the left bank 3, and a plurality of power generation devices 4 are connected to this rope 9 so as to be lined up.

(Effects of the Invention) According to this invention, since the water wheel is formed to float on the water surface, the rotating water wheel is prevented from colliding with the riverbed. Therefore, the power generation device can be used even in shallow areas of the river. be able to.

Furthermore, the water wheel was configured to rotate in a direction approximately perpendicular to the flow of water and around a horizontal axis, and a float was provided that protruded from the stationary part of the output means toward the upstream side to cancel the counter torque of the water wheel. Even if the amount of protrusion of the float is increased in response to a large reaction torque of the water turbine, the width dimension of the power generating device will not increase. Therefore, even a power generation device with a large power generation capacity can be used in a narrow river.

[Brief explanation of drawings]

The figures show embodiments of the invention, and FIGS.
In the example, Fig. 1 is an overall perspective view of the power generation device moored in a river, Fig. 2 is an enlarged view of the main part of Fig. 1, Fig. 3 is a partial exploded view of Fig. 2', and Fig. 4 is a cross-sectional view taken along the line IV-IV in Figure 2, Figure 5 is a side view of the power generator, Figure 6 is a plan view of the power generator, Figure 7 is a front view of the power generator, and Figure 8 is a cross-sectional view of the power generator. FIG. 9 is a side view showing the power generation device in a disassembled and stored state; FIG. 9 is a view taken along the line IX-IX in FIG. 8; FIG. 10 is a partial front cross-sectional view of the power generation device in the second embodiment; FIG. 11 From Figure 13 is the third
14 is a plan view showing a usage example, and FIG. 15 is a top view showing another usage example. 4. Power generation device (hydraulic power bag W), 6. Generator (output means), 7. Water wheel, 8. Float, 11. Woosing (stationary part), 14. Rotating wheel (rotating part).

Claims (1)

[Claims] 1. An output means such as a generator, and a water wheel that is interlocked and connected to the rotating part of this output means and rotates with the flow of water, and these output means and the water wheel are configured to float on water, In a hydraulic device in which a float protrudes from the stationary part to prevent the stationary part from rotating together with the water wheel,
The water wheel is formed to float on the water surface, the water wheel is configured to rotate about a horizontal axis in a direction substantially perpendicular to the flow of water, and a float is provided to protrude toward the upstream side from a stationary portion of the output means. A hydraulic device characterized by: