JPS6129979Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to a water turbine device installed in a flow path such as a waterway.

(Prior Art) Electric power is generally used as a driving source for dust removers, gates, etc. installed in main waterways and the like.
In order to obtain this electric power, it is possible to use a generator driven by a water wheel, but as the water level of the waterway fluctuates, the torque generated by the water wheel changes, so in order to transmit the torque generated by the water wheel to the generator, Torque must be kept constant using a governor, etc.

Therefore, a ``hydraulic power device in which a water wheel is made hollow so that it floats on the water, and is immersed in the water at a constant rate even when the water level fluctuates'' has been proposed (see the specification of Patent No. 62172). ). In addition, ``a water turbine power generation device that utilizes tidal currents, which includes a float that moves up and down with the ebb and flow of the tide, a water wheel installed on this float that rotates due to the flow of the tide, and a mechanism that transmits the rotational force of this water wheel to the engine. is known (see Japanese Unexamined Patent Publication No. 142943/1983).

(Problems to be solved by this invention) Conventionally, this type of water turbine has had the problem that the water wheel oscillates due to the direct influence of flowing water.
In those that utilize tidal currents, waves cause severe agitation, making it impossible to keep the water wheel submerged at a constant level, and also making it impossible to maintain a constant drag force exerted on the water wheel by the flowing water.

This invention was made to solve the above-mentioned problems.

(Means for Solving the Problems) That is, the water turbine device according to this invention includes, in a flow path 1 such as a waterway, upstream/downstream guides 2 whose opposing surfaces are perpendicular to the side walls 1A, 1B, and the side walls 1A, 1B. 1
In other words, a float chamber 9 consisting of a rectifying plate 8 parallel to the flowing water direction and side walls 1A, 1B is arranged at a predetermined interval on both sides of the flowing water direction.
A float 3 is fitted into each of the floats 3 so as to move up and down along the guides, and the shaft 5 of the water turbine 4 is disposed between the two rectifying plates 8 and is pivotally supported on the float 3 via a bearing 6. A vertically long through hole 1 at the bottom of the
2 are provided, and the ends of the float connecting rods 13 inserted through the through holes 12 are respectively fixed to the bottom of the float 3. Therefore, float 3
is a float chamber 9 that is almost unaffected by running water.
It supports the water turbine 4 in a stable state with extremely little oscillation, and moves up and down following fluctuations in water level, so that the water wheel's submergence level is always kept constant.

(Example) Hereinafter, an example of this invention will be described with reference to the drawings.

In the drawing, 1 is a channel such as a waterway, and 2 and 2 are upstream and downstream guides that are in contact with both side walls 1A and 1B of the channel 1 and can accommodate floats 3 and 3 at predetermined intervals in the upstream and downstream directions. It is erected in A water wheel 4 is disposed between both floats 3, 3, and a shaft 5 of the water wheel 4 is supported on the floats 3, 3 via bearings 6, 6.

The upper and downstream opposing surfaces of the upper and downstream guides 2 and 2 are perpendicular to and parallel to the side walls 1A and 1B, respectively, and the upstream surface of the upstream guide 2 is inclined to form a rectifying surface 7. A rectifying plate 8 parallel to the flowing water direction is fixed to the side surface near the water turbine 4 between both the upper and downstream guides 2, 2, and the side walls 1A, 1B, the upper and downstream guides 2, 2, and the rectifying plate 8 A float chamber 9 is configured. A guide roller 10 is pivotally attached to the float 3 fitted in the float chamber 9 at a suitable position facing the side wall 1A and the upstream and downstream guides 2, so that the float 3 can be smoothly moved in the vertical direction. . Note that the current plate 8 is provided with a U-shaped notch 11 in the center of the upper part, so that there is no problem even when the water turbine 4 moves up and down. Furthermore, vertically long through holes 12 are provided on the upper and downstream sides of the lower part of the current plate 8, and the ends of the float connecting rods 13 inserted through the through holes 12 are respectively fixed to the bottom of the float 3. The float 3 is designed to move up and down in synchronization. Therefore, water flows into the float chamber 9 through the through hole 12, so there is no rocking of the float 3, and the submerged depth of the water wheel 4 is always constant, so that the water does not flow. The drag force exerted on the water wheel 4 is also always constant.

Reference numeral 14 denotes a power generation device, the input shaft 15 of which is connected to the water wheel shaft 5 through a flexible torque tube 16, the rotational force of the water wheel 4 is transmitted, and the power generator is driven by the water wheel 4.

This power generation device 14 is fixed on the channel side wall 1A, and the water turbine 4 moves up and down following fluctuations in the water level, but since the flexible torque tube 16 is used, there is no problem. Further, although the specific structure of this power generation device 14 is not shown, it consists of a speed increaser, an alternator, a rectifier, a voltage regulator,
The generated power is stored in the charger and supplied to the electric motor via the controller. This generated power can drive the dust remover 17, the gate, etc.

Furthermore, when driving the power generator with the torque generated by the water turbine, the torque can be input immediately to the speed increaser without adjustment using a speed governor or the like, and the speed governor can be omitted. Furthermore, the torque generated by the water turbine can be used as power for dust removers or gates through links, gear devices, etc., and since the generated torque is constant,
This has the effect of allowing gates, dust removers, etc. to operate smoothly and reliably.

In addition, in the embodiment of this invention, the power generation device 14 was installed on the flow path side wall 1A, but this was installed on the float 3.
It can be provided above or within the float 3. In addition, the channel width or channel width, that is, the side wall 1
When the distance between A and the side wall 1B is wide, one side wall of the waterway, for example 1A, is used, and a guide side wall for guiding the guide roller 10 is provided between the both side walls 1A and 1B. The float chamber 9 can be constructed by fixing the ends of the downstream guide 2 in a perpendicular manner. Furthermore, the configuration of the guide and guide rollers is not limited to this embodiment, and the design can be changed as appropriate to integrally configure the entire water turbine device.

(Effects) As mentioned above, the water turbine device according to this invention follows fluctuations in water level because the float 3 that pivotally supports the water turbine 4 is located in the float chamber 9 which is not directly affected by flowing water. and float 3 is guide 2
It moves up and down quietly and smoothly guided by the
There is little swinging of the float, and the submerged depth of the water wheel 4 is always constant, and therefore, the drag force exerted on the water wheel 4 by the flowing water is also always constant, so that the generated torque can be stably obtained.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; FIG. 1 is a plan view, FIG. 2 is a vertical sectional view taken along the line - in FIG. 1, and FIG. 3 is a longitudinal sectional side view taken along the line - in FIG. It is. 1... Channel, 1A, 1B... Side wall, 2... Guide, 3... Float, 4... Water wheel, 5... Water wheel shaft, 6... Bearing, 8... Current plate, 9... Float chamber , 12... through hole, 13... float connecting rod.

Claims (1)

[Scope of utility model registration request] In the flow path 1 such as a waterway, the opposing surface is the side wall 1A, 1
Upstream/downstream guide 2 and side wall 1 perpendicular to B
Current plate 8 and side walls 1A, 1 parallel to A, 1B
Float chambers 9 consisting of B are arranged at a predetermined interval on both sides in the water flow direction, and the floats 3 are fitted into each of the float chambers 9 so as to move up and down along the guides, and the floats 3 are fitted between the two rectifying plates 8. The shaft 5 of the arranged water turbine 4 is supported on the float 3 via a bearing 6, and a vertically long through hole 12 is provided in the lower part of the current plate 8.
Float connecting rod 1 inserted into this through hole 12
A water turbine device in which the ends of the floats 3 and 3 are fixed to the bottom of the floats 3, respectively.