JPS58138272A - Rotation reinforcing device of water turbine - Google Patents

Abstract

PURPOSE:To more efficiently rotate a water turbine than that without an internally curved cancaved wall, by arraging a side wall body having an internally curved concaved surface of almost arc shape partially along the rotational periphery of rotary blades of the water turbine and rotating the blades of the water turbine along said concaved surface. CONSTITUTION:Longitudinally shaped bodies 7, 7' placed almost at a right angle with lateral walls 5, 5' are provided approximately to the rotational periphery of blades 1 on a bottom wall 6, and longitudinal sloped path walls 8, 8' while longitudinal internall curved concaved surface walls 9, 9' are mounted to said bodies 7, 7'. When a water flow is applied as indicated by an arrow head A, a water turbine (a) is influenced by the walls 9, 9' and more efficiently rotated than a water turbine with a lack of these walls.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved rotation reinforcement device for a water turbine that utilizes the hydraulic power of a river or the like that flows in a substantially horizontal direction. The blades of the water wheel rotate along the inner concave surface of the side wall body, and there are two types: a horizontal axis type and a vertical axis type.

First, to describe an example of the horizontal shaft type, the rotating shaft 3 holding the rotating body 2 with a plurality of blades 1 of the water turbine a shown in the first to third figures is supported by left and right bearings 4 and 4. The bearing 4
・4' is supported by the left and right quay walls 5.5', and the left and right quay walls 5.
The lower portions of 5' are connected by a bottom wall 6. On the bottom wall 6 outside the rotating outer periphery of the blade 1, left and right quay walls 5, 5' are installed close to the rotating outer periphery.
Front and rear layered bodies 7 and 71 are provided, which are substantially orthogonal to each other. Front and rear new road walls 8, 8' can be attached to the layered bodies 7, 7' as shown in the figure. Further, the curved inner concave walls 9, 9' at the front and rear of the forest can be attached to the layered bodies 7, 7', and the curved inner concave walls 9, 9' can be tied together as shown.

The front and rear layered bodies 7, 7' can be provided only on either the front or the rear together with the new road walls 8, 8' and the curved inner concave walls 9, 9'.

Next, referring to an example of the vertical shaft type, the rotating shaft 12 that holds the rotating body 11 to which a plurality of blades 1o of the water turbine shown in FIGS.
3' (not shown), the lower bearing 13' is supported by being buried in the bottom wall 14, etc., and the upper bearing 13 is supported directly by the front and rear bearing legs 15, 15', etc., or by the left bank (described later). It is indirectly supported by the bottom wall 14 via the wall 16.

Quay walls 16 and 16' are provided on the left and right sides of the bottom wall 14, but left and right embankment walls 17 and 17' can be further provided on the upper surface of each in the form of steps or slopes as shown in the figure.

As shown in Figure 4, the blades of the water wheel 1 are placed on the left and right quay walls 16 and 16'.
Left and right curved inner concave walls 18 and 18' are provided along the rotation outer circumference of the water wheel, and the water wheel is placed inside the left curved inner concave wall 18 in this example so that the left half of the water wheel can rotate. Allocate to.

For this purpose, as shown in the figure, the upper bearing 13 is mounted on the left quay 16 with the front and rear bearing legs 15 and 15', straddling the space for water turbine rotation formed by the left curved inner concave wall 18, as shown in the previous example. .

The curved inner concave wall 18' on the right quay wall 16' side can be eliminated. Also, on the right quay 16' side, a right curved inner concave wall 18I (not shown), which has a built-in right water wheel b/ (not shown), which is almost the same as that on the left quay 16, is provided in contrast. , bearing 131 (not shown) and others can be provided in substantially the same manner as on the left side. In this way, when the left and right water turbines b - b' are provided symmetrically on both the left and right quay walls 16 and 16', the left and right water turbines b -
A right quay wall 16' having a right curved inner concave wall 18' in the form of an island under the water surface is provided in the middle of the rotating outer circumference of b', and a left curved inner concave wall 18I having a similar shape is provided back to back with this. A left quay wall 161 (both not shown) can be provided. Both the front and rear ends of the middle island-shaped right and left quay walls 16' and 16I (tilts are not shown) can be formed into a tapered boat shape of a required length.

The device of the present invention is such that when a water flow is applied in the direction indicated by arrow A in Figs. 1 and 2 or in the direction indicated by B in Figs. 'ya 18・18'
The structures of the lungs rotate more efficiently than those lacking concave walls within their curvature.

In addition, in the case of the vertical shaft type shown in Figures 4 to 6, when running water overflows due to melting snow or heavy rain, the excess water flows away over the blades 10 of the water wheel, the left and right quay walls 16, 16', etc., and the equipment is destroyed. The left and right embankment walls 17 and 17' have the effect of preventing flooding. The shapes of the blades 1 and 10 of the water turbine mob are not limited to the illustrated example.

Among the front and rear layered bodies 7 and 7', the slope walls 8 and 8', and the curved inner concave walls 9 and 9I, a structure formed by combining two or more of them is tentatively referred to as a flow guiding bottom wall. On the flow guiding bottom wall, it is unclear whether the layered bodies 7 and 7' of the illustrated example are omitted, and the slope wall 819 is 8
A configuration in which the curved inner concave wall 9 or 9' is directly connected to the curved inner concave wall 9 or 9' is also possible.

In addition, in an example using a vertical shaft type water turbine, the left curved inner concave wall 18
is shown as approximately semicircular in top view in Fig. 4, but
This shape is not necessarily limited to this, but it is possible to have a structure in which approximately half of the waterwheel is built in so that it can rotate inside, and the remaining part is exposed in the flowing water of the river, for example, the top surface The visual field can also be a part of a rectangular shape.

In this case, the two characters "curved" are omitted and the wall is simply referred to as an inner concave wall 18.

come.

The present invention can greatly contribute to generating electricity and other motive power by utilizing running water of small and medium-sized rivers.

[Brief explanation of the drawing]

Figure 1 is a front view of the use of a horizontal shaft type water turbine according to the present invention, Figure 2
The figure is a cross-sectional view of the thing in Figure 1 seen in the direction of the arrow I-1, Figure 3 is a side view of the thing in Figure 1 seen in the direction of the person, and Figure 4 is a vertical view of the thing in the present invention. A front view of the shaft-type water turbine. Figure 5 is a sectional view of the one in Figure 4 taken along the ■-■ line arrow, and Figure 6 is a side view of the one in Figure 4 taken along the B arrow. It is. aeb-water wheel 1-10-wings 2.11-rotating body 3.1
2 - Rotating shaft 4, 4' - Left and right bearings 5, 5' - Left and right quays 6, 14 - Bottom wall 7, 7' - Front and rear layered bodies
8, 8' - Front and rear ramp walls 9, 9' - Front and rear curved inner concave walls 13 - Upper bearing 15, 15' - Front and rear bearing legs 16.
16' - Left and right quay walls 17, 17' - Left and right embankment walls 18, 18' - Left and right curved inner concave walls 11 KA h3WA / %if Outer darob'? p&IIA 2

Claims (1)

[Claims] In a water turbine that uses running water from a river, etc., a side wall body having an approximately arc-shaped curved inner concave surface is arranged along a part of the rotating outer periphery of the blade, and the water wheel has a side wall body having a substantially arc-shaped curved inner concave surface along a part of the rotating outer periphery of the blade. A rotation reinforcement device for a water wheel, which is characterized by being made to rotate.