CZ10903U1 - Bladed water wheel - Google Patents

Abstract

A bladed water wheel consists of a roller body (1) of rotor, on which external side of envelop (4) tilting formed blades (2) are palaced on pins (3) rotationally around the pin axis (3). A roller body (1) of rotor is fixed on a horizontal shaft (7) rotationally placed in side walls of rotor of the laid U form. The upper open of stator consists of an entrace channel (5) which feeds driving water into a blade water wheel - in direction of an arrow. The end of the lower side (6) of the channel (5) is closely adjacent to a formed blade (2) which inner side is adjacent to the external side of the envelope (4) of rotor (1). The roller part of stator forms a working channel (8) and the lower open part of stator forms an exit channel (9) serving for water discharge.

Description

Technical field

The technical solution relates to the construction of a paddle water wheel for radial inlet of propellant water.

BACKGROUND OF THE INVENTION

The water wheels used so far, whether single-stage or multi-stage, utilizing both the positional and moving energy of the water to power the connected power generators, are always designed with fixed fixed blades or buckets attached to the outer periphery of the impeller. Because of their relatively low efficiency, they are in many cases replaced by differently constructed turbines. Their common disadvantage, which significantly limits their use, especially on small streams, is their structural complexity, technical complexity during installation and actual operation, which, at their higher efficiency, does not outweigh the economic disadvantage.

The essence of the technical solution

The above-mentioned disadvantages of the water wheels used hitherto are largely eliminated by the proposed technical solution, which is based on the fact that the rotor of the impeller consists of a rotor body in the shape of a horizontal hollow closed cylinder centered on the horizontal shaft. whose axes are parallel to the axis of the rotor shaft, with one end rotatably mounted on the axis of the pins, tilting shaped vanes, the radius of curvature of the inner side of which is equal to the radius of the outer side of the cylindrical shell wall; rotor body. The horizontal impeller shaft is rotatably mounted in the side walls of the stator body having a U-shaped shape. Its upper open portion for supplying drive water forms an inlet channel, the round cylindrical portion of the stator forms a working channel and the lower open portion for stator discharge. from the water wheel the water forms the outlet channel. The bottom wall (bottom) of the inlet duct, with its end, abuts against the outer wall of the tilting shaped blade, clamped by the inner side to the outer surface of the rotor housing. The cylindrical portion of the stator, the axis of which is identical to the axis of the impeller shaft, has a maximum radius length equal to the sum of the radius length of the rotor body and the height of the tilting shaped blade. The night sides of the stator are formed by solid parallel walls and their inner sides of the walls are at a distance equal to or slightly larger than the height of the cylindrical rotor body.

The paddle water wheel according to this technical solution has a significantly higher efficiency compared to the existing water wheels, while maintaining the design simplicity and unpretentious operation. This is mainly due to the constant generation of positive torque when rotating the rotor, which is given by the difference of the center of gravity of the tilted shaped vanes in both extreme working positions, when the free end of the blade rests against the inner surface of the working channel wall. to the outer surface of the rotor cylindrical housing. Hydrostatic buoyancy of water, which is proportional to the size of the blade volume, contributes to increasing the efficiency of the blades to the working position, and their weight actively helps to lower the blade to the non-working position.

Exemplary embodiment

An exemplary embodiment of a paddle water wheel according to this invention is schematically shown in side view in Fig. 1.

-1 CZ 10903 U1

The impeller consists of a cylindrical rotor body 1, on the outside of the casing 4 of which the tilt-shaped vanes 2 are rotatably mounted on the pins 3 about the axis of the pins 3. The cylindrical rotor body 1 is mounted on a horizontal shaft 7 rotatably mounted in the stator side walls. The upper open portion of the stator forms an inlet channel 5 through which drive water is introduced into the paddle wheel - in the direction of the arrow. The bottom wall 6 (bottom) abuts with its end closely to the shaped blade 2, which is inwardly clamped to the outside of the housing 4 of the rotor body L

The cylindrical part of the stator forms the working channel 8 and the lower open part of the stator forms the outlet channel 9 for draining water.

The paddle wheel works on this principle:

Immediately after entering the working channel 8 of the stator, the propulsion water supplied by the inlet channel 5 acts on the shaped blade 2, assists in its full tilting into the working position and starts to rotate the rotor. The shaped blade 2 in the full working position is supported by the edge of its free end against the inner side of the wall of the stator working channel 8 and the sides adjacent to the inner sides of the sides of the stator. As a result, the working channel 8 is sealed and the positioning and movement energy of the propellant is fully transferred to the shaped vanes 2, the cylindrical rotor body 1 and the horizontal shaft 7 of the impeller.

As soon as the rotor is rotated and the shaped blade 2 leaves the working channel 8, the free water flow path to the outlet channel 9 is cleared. As the rotor continues to rotate, the shaped blade gradually tilts against the running water direction into the inoperative position and The duct is completely clamped by the inner side to the outer surface of the housing 4 of the body and rotor. This cycle is constantly repeated.

Industrial applicability

The impeller, according to this invention, is particularly useful on small streams to drive connecting power generators.

Claims (2)

1. A water-vane water wheel comprising: a rotor body in the form of a hollow horizontal closed cylinder centrally mounted on a horizontal water wheel shaft (7) mounted rotatably in the side walls of the stator body, further comprising tilt-shaped of the blades (2) rotatable about the axis of the pins (3) on the pins (3) mounted on the cylindrical shell (4) of the body (1) 30 rotor, the axes of which are parallel to the axis of the horizontal shaft (7) of the water wheel, on the outside of the rotor housing wall (4) and whose width is less than the height of the rotor body (1) and the radius of curvature the blade (2) is identical with the radius of the outer side of the wall of the cylindrical body (1) of the rotor, further from the U-shaped stator body, its upper open part being the inlet channel (5), and its bottom wall (6) external 35 side of the shaped blade (2) clamped internally to the outer surface of the rotor housing (4), the cylindrical portion of the stator whose axis coincides with the axis of the horizontal shaft ΙΊΙ of the impeller and whose maximum radius length is equal to the sum the radius of the cylindrical body (1) of the rotor and the height of the shaped blade (2), forming the working channel (8) and the lower open portion of the stator forming the outlet channel (9), 40 parallel walls whose inner sides of the walls are at a distance equal to or greater than the height of the rotor body (1). -2GB 10903 U1 A paddle wheel according to claim 1, characterized in that the free end of the shaped vanes (2) is formed such that it rests on the inner surface of the working channel wall (8) with one full edge in the working position.