DE102009033203A1 - Kiran turbine for generating hydroelectric power from flowing water of smaller rivers, has semicircular guide rails guiding vane elements of vanes, where elements include hinges, which fold elements during contact with rails - Google Patents

Abstract

The turbine has an axle that is torque-proofly fastened to a holder, and a base plate provided with multiple vanes that are arranged in a plane running perpendicular to the axle, where the vanes are connected with the axle by rotating arms. Two semicircular guide rails are torque-proofly fastened to the axle and serve guidance for vane elements of the vanes, where the vane elements include hinges, which fold the vane elements during contact with the guide rails. A bearing is arranged among the axle and the rotatable arms. An independent claim is also included for a device for generating energy from flowing water.

Description

short version

Objective, technical problem of the invention

To estimate The UN is two billion people without electricity and must manage. To the 40 countries do not have a nationwide power grid, the cost relation network to power plants is often 4: 1 and higher.

households are supplied by small hydroelectric power plants, where these are topographical possible are. Other Renewables do not run around the clock and need expensive and always new batteries. Rewarding sites for geothermal energy There is not everywhere.

The Kiran turbine will help. What all the rivers along can be used.

solution of the problem

Which What advantages does the power of water offer?

• Kein Rohstoffverbrauch, keine Emissionen.

There are a whole range of advantages for hydropower:
The energy conversion happens with a very high efficiency. This means that a high percentage of the energy used is converted into electricity. When using this energy source no pollutants are released. The heat transfer to the environment is very low, there is virtually no waste heat.

• No consumption of raw materials, no emissions.

The Main advantages of hydropower over other forms of energy production However, the facts are that no raw materials are consumed and no emissions arise. Not for nothing did the environmental conference "Agenda 21 "in Rio the generation of energy from hydropower as an important goal for all states called.

Kiran turbine

Driven become the leaves of the Kiran turbine from the water of the river.

The kinetic energy of the water is developed by the specially developed leaves the turbine converts into a mechanical rotary motion. This rotational movement then drives a generator.

It is a building block for the transition to renewable energies and makes a contribution to climate protection. Impressive is that for this Hydroelectricity the river does not need to be dammed. Hydropower generation in free-flowing River.

application

Bets of Kiran turbines are on smaller rivers with a minimum width of 1 m, a minimum depth of 0.5 m and a flow rate of more than 2 m / s.

The In-water turbine can also be used in places that with conventional Hydropower technology is not usable.

advantages

• – bauliche Veränderungen im Fluss sind nicht erforderlich
• – der Wasserspiegel des Flusses wird kaum beeinflusst
• – das Kraftwerk kann leicht wieder dem Fluss entnommen werden
• – keine Behinderung der Wanderung der Fische

The advantages are:

• - structural changes in the river are not required
• - The water level of the river is hardly affected
• - The power plant can easily be removed from the river again
• - no obstruction of the migration of the fish

function

• – Ankerung/Grundplatte
• – Turbinen-Schaufeln
• – Halbkreisförmige Schienen
• – Achse
• – Übersetzung

The essential components of the Kiran turbine are

• - Anchor / base plate
• - Turbine blades
• - Semicircular rails
• - axis
• - Translation

Of the Kiran Turbine Shovel is a self-folding shovel. Of the Shovel is completely filled with water during the water impact and thus has its maximum opening. The flow pushes against the shovel and take care of a rotary motion. The shovel is attached using a bracket bound to an axis. While As the blade rotates, it enters a semicircular rail. This ensures it that at the return the shovel, this collapses and thus the water resistance minimized.

The Shovels are inserted so that they rotate in the direction of rotation Holder are held and thus the power of the water transmit the axis. The opposite Shovel elements, however, work too no resistance here generate and thus achieve maximum efficiency.

These Type of energy production forms no barrier in the river.

Important components

Anchor / Base Plate (Fig. 1)

The Axle of the turbine is connected to a bracket. See case study. The attachment can also be on an anchorage or on a base plate respectively

The axis (Fig. 2)

The Axle leaves only turn in a clockwise direction. The axis is on Stock the similar Features ausweißt like a coaster brake at a bicycle. This function leaves only one direction of rotation to. With the help of this function, the axis rotates when impacting the Water on the wings always in the same direction. The structure of the wings ensure that the force on the right wing takes place. For this see explanation Kiran turbines scoop.

The translation

Around for the Power generation Necessary speed and high efficiency at the power transmission to get the rotation of the main axis is translated.

The semicircular guide rail (FIGS. 3 and 4)

Two semicircular Rails provide for that close the shovel. The rails are superimposed. Your distance each other is equal to the beginning of the maximum opening of the blade and at the end of the minimal opening the blade. By the two-sided attached wheels (attached on the blade) between the rail and the blade element for a lower friction. The rails are connected to the axle bracket and are not mobile.

Kiran turbine blade

Of the Kiran Turbinen scoop is a folding scoop.

• – 2 Rädern
• – Feder
• – Halterung
• – 8 Scharniere
• – Schaufelelement

The bucket consists of the following components ( 5 and 6 ),

• - 2 wheels
• - Feather
• - Bracket
• - 8 hinges
• - Shovel element

The Wheels provide for a guide inside the semicircular Rail and the reduction of frictional resistance.

Of the Feather will be during the leadership compressed inside the rail. When leaving the rail provides it additionally for the unfold the blade.

With Help the bracket is connected to the blade element with the axis.

8th Hinges provide for the open and close the blade element.

The blade element consists of 5 rectangular and 4 triangular pieces which are connected by the hinges ( 7 ), The shape of the blade element creates a low water resistance in the closed form. Whereas in the open state a maximum force transmission of the flow. Here, the bucket is completely filled with water. The bucket does not open completely, so that it is filled with sufficient volumes of water. This volume is ensured by the triangle parts.

By the flow behavior the water the blade elements are opened or opened.

For maintainability the blades are easy to remove and replace.

Case Example - The Electric energy

With Help of a rotary generator turns the rotational energy into electrical Energy Transformed.

Of the Rotary generator is powered by a rotating axle on which a wheel firmly mounted, driven. The drive is done with a belt drive like z. B. V-ribbed or wedge flat belts.

The energy of the movement of the effluent water is transferred to a waterwheel, causing it to rotate in high torque. This in turn is forwarded directly or via a transmission to the shaft of the generator. The generator converts the mechanical energy into electricity ( 8th ),

Claims (13)

A device for generating energy from flowing waters with an axis which is rotatably attached to a holder, an anchor or a base plate, having a plurality of arranged in a plane perpendicular to the axis of the blades, which are connected by means of rotatably mounted pivot arms with the axis and with two substantially semicircular guide rails which are rotatably mounted on the axis and serve to guide blade elements of the blades, wherein the blade elements have hinges, the one Allow folding of the blade elements in contact with the guide rails. Device according to the previous claim, characterized characterized in that between the axis and the rotating arms a bearing is arranged, which is rotatable only in one direction. Device according to one or more of the previous ones Claims, characterized in that the guide rails mirror each other are arranged. Device according to one or more of the previous ones Claims, characterized in that the guide rails at their end portions a have curved course, so that the distance between the guide rails increases in the direction of their end sections. Device according to one or more of the previous ones Claims, characterized in that the blade elements each have two wheels, the with the guide rails can be brought into contact. Device according to one or more of the previous ones Claims, characterized in that the blade elements in the region of their Blade inner surface a spring, which is a folding of the blade elements in the Leaving the guide rails supported. Device according to one or more of the previous ones Claims, characterized in that the blade elements in the unfolded Condition trough-shaped are designed. Device according to one or more of the previous ones Claims, characterized in that the blade elements of five rectangular and four triangular pieces consist of hinges connected to each other. Device according to one or more of the previous ones Claims, characterized in that the blade elements releasably with the rotary arms are connected. Device according to one or more of the previous ones Claims, characterized in that the axis of a rotatable outer shaft is surrounded, on which the pivot arms are attached. Device according to one or more of the previous ones Claims, characterized in that the device with a generator in operative connection, which can be driven by the rotational movement of the blades is. Device according to claims 10 and 11, characterized that the outside wave over a Belt drive, such. B. a V-ribbed or wedge flat belt, with a rotary generator is connected. Process for obtaining energy from flowing waters, at the scoop elements, which have swivel arms are concentrically connected to a central axis, through the flow of the water be driven along a circular path and the movement of the Blade elements is passed to a generator, being along a region of the circular path two substantially semicircular, one above the other arranged and non-rotatably connected to the axis guide rails are arranged, between which the blades are passed, so that these partially folded by the contact with the guide rails be to the attack surface for the waters in to reduce this area.

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