Hydraulic power plant of conveyor type

FIELD: power engineering.

SUBSTANCE: hydraulic power plant of conveyor type submerged into a fluid medium comprises a frame with at least two pairs of guides and shafts installed on it at the opposite sides as capable of rotation. One of the shafts is kinematically connected with a power generator. A flexible element that embraces the shafts is made in the form of a closed chain gear with fixed blades equipped with axes and rollers. The hydraulic power plant is placed in a channel equipped with gateways along the flow with partial submersion of the body into the fluid medium. The flexible element comprises joined links-carriages with combined blades, which consist of at least four V-shaped plates arranged in pairs opposite to each other. Plates in each pair are parallel to each other. Shafts are placed at different levels, and wheels are installed at their ends. Wheels of the shaft arranged below are made as geared and of smaller diameter compared to wheels of the other shaft. The shaft with wheels of the smaller diameter is arranged upstream compared to the shaft with wheels of larger diameter.

EFFECT: increased reliability and capacity of a hydraulic power plant.

4 cl, 6 dwg

 

The invention relates to hydropower, in particular to a device designed to convert the energy of the fluid flow into electrical energy.

Offer to protect hydroelectric power plant (HPP) conveyor type allows you to use the energy of large and small rivers, and open drains artificial origin, such as mains and other utilities.

The prior art river hydroelectric power plant that uses the potential energy of water by the concentration of power in the form of the difference in levels, of which the most common dam storage hydropower plants containing the dam, reservoir, building working bodies in the form of turbines connected to electric generators (see, for example, patent RU 2232289 "Hydroelectric", filing date 26.11.2002, published 10.07.2004,).

However, the use of dam storage hydroelectric power station is due to their negative impact on river ecosystems, flooding caused by dam failure, and, as a consequence, the emergence of social problems, in particular related to resettlement. In addition, these designs are generally cumbersome, and the cost of their erection high.

These drawbacks are eliminated in a hydroelectric dam, to which the invention relates.

<> In the prior art it is known device for the energy of the sea-tides containing submerged hull and installed the working body in the form of an endless rotary conveyor, frame drums and kinematically associated with the generator, the housing provided with a coaxially arranged with hand drums nozzles installed them in the opposite branches of the conveyor butterfly dampers (see inventor's certificate SU 1020620 "Device to use the energy of the sea tides", filing date 15.05.1981, published 30.05.1983 year).

The disadvantages of this device due to the impossibility of continuous operation, which depends on the frequency of such phenomena as the tides.

Known stream hydroelectric, containing submerged hull and installed a working body in the form of chain paddle conveyor, the envelope of vertically spaced sprockets and kinematically associated with the generator, each blade of the conveyor is made in the form of rotatable around a horizontal axis of the valve, with the axle attached to the blade is symmetrical with the formation of two parts, one of which is made heavier than the other (see patent RU 2086799 Streaming hydroelectric power plant", filing date 15.07.192,, published 10.08.1997 year).

Also known all-season hydroelectric dam, containing immobilized in the flow through the bottom of the Foundation or floating means mounting cage made near the beginning of the meeting flow two drive drums, and in the end stand on its corners with drums idling, thus strengthen the Central cage wall, the drums are hollow with axes and located at the ends of drum gears are in contact with the chain gear, which through the axes of the fixed folding blade, forming a closed, conveyor type, right and left hinges, made of rigid material and spaced at an angle from the Central partition with software rotation in different directions driven reels associated gear unit reverse rotation and multiplier from the generator, and the leaf blades attached loosely to the opening and closing of the flow, closing the inner leaf blade is slidable along the axis of the drum idling and hold-open valves produced by the limiter (see patent RU 2227227 "all-season hydroelectric Dam", filing date 13.05.2002, published 20.04.2004,).

In addition, the known engine for util the saved energy of a fluid medium, containing immersed in the last frame with bushing Windows installed in the frame with its opposite sides by means of rotation of the shafts, one of which is kinematically connected to an electric generator, a flexible element covering the said shaft and provided with blades mounted thereon can be rotated, with the inner longitudinal walls of the frame are made rails with the slots and the blades are provided with pins with rollers mounted in the said slots, and the frame is placed on its longitudinal side across the flow of the current environment, and through a window made in its longitudinal walls, in the area of the curvilinear movement of the flexible element is installed with the possibility interaction with the blade tool to change their position on the said flexible element on the opposite, with the blades on the flexible element is mounted with the middle part and in working condition is set at an angle to the direction of flow, with the possibility of overlapping megapath periods of one branch of the blades of the other branch, the frame is made of at least two pairs of guide pins with rollers attached to the lateral edges of the blades, and roller of each pin is placed in a separate guide corresponding pair (see patent RU 2166664 "Engine for energy recovery current is Reda", filing date 19.06.2000, published 10.05.2001 year).

The set of essential characteristics of this device closest to the claimed invention and is selected as a prototype.

The disadvantage of all the above hydraulic structures is that their installation is carried out mainly in the river channel, which limits the scope of data units, in particular, their use in small rivers and small artificial channels, and the installation, repair and maintenance of this type of hydropower plants requires long-term termination of operation of the HPP.

In addition, to effect the operation of the device, taken as a prototype, should be completely immersed in the fluid, resulting in slyvania in her sand and algae, which, in turn, impedes the movement of the blades and, ultimately, leads not only to reduction in the efficiency of the entire installation, but also the breakage of its parts and components.

The horizontal position of the shafts in the known device, as a rule, leads to the side sagging of the flexible element.

The technical result, which directed the claimed invention is to improve the reliability and increase the capacity of hydroelectric power.

This technical result is achieved by the fact that hydroelectric env is ornago type, immersed in the fluid and including a frame with at least two pairs of rails and installed on it from opposite sides, with the possibility of rotation of the shafts, one of which is kinematically connected to an electric generator, a flexible element covering the shafts, made in the form of a closed chain of transmission with a fixed blade with axis rollers according to the invention is placed in the air-channel gateways along the stream partial immersion of the body in the fluid, the flexible element consists of two interrelated parts-carriages with the combined blades, consisting of at least four V-shaped plates arranged in pairs opposite each other, with the plates in each pair are parallel to each other, the shafts are placed at different levels and at their ends mounted wheels, with wheel shaft located below made gear and a smaller diameter than the wheels of the other shaft, the shaft with the wheels of a smaller diameter is located upstream water than the shaft with the larger wheels.

The blades are made of specialized material, as is used, for example, bent sheet rolling profile.

Link-carriage is equipped with four rollers.

The channel is equipped with a catching debris device, for example, net.

The present image is giving illustrated by drawings, where

figure 1 is a side view of the hydroelectric power conveyor-type;

figure 2 - cross section a-a hydroelectric conveyor-type;

figure 3 is a side view of the link-carriage;

4 is a front view of the link-carriage;

5 is a top view of the link-carriage;

6 is a layout of hydroelectric power in the channel relative to the channel of the river.

Offer to protect hydroelectric conveyor-type contains partially immersed in the fluid frame 1 and installed it with the possibility of rotation of the two shaft - lead 2 and slave 3. The shafts are placed at different levels and at their ends are mounted the wheels, and the wheels 4, 5 is located below the drive shaft is made gear and a smaller diameter than the wheels 6, 7 of the driven shaft, through which is formed a slope in the direction of the drive shaft 2. Drive shaft 2 is located upstream of the driven shaft 3.

Wheels 4, 5, 6, 7 comprises a flexible element representing a closed loop chain drive 8 interacting with the wheels of both axles. Chain transmission 8 is formed of interconnected links in the carriage 9, is equipped with multiple blades 10.

Combined, the blades 10 are composed of at least four V-shaped plates with an angle of 20-45, located in pairs opposite each other, with the plates in each pair is parallel to the Rog other. This blade shape increases the contact surface with the flow, and contributes to, including the increase in hydroelectric power.

Links-carriage 9 is connected through movable cheeks 11 and provided with rollers 12, by which they move through two pairs of guides: top 13, 14, and bottom 15, 16.

Movable cheeks 11 made in the form of rectangular plates.

Moving parts-carriage 9 along the upper guide rails 13, 14 is tilted in the direction of the toothed wheels 4, 5, the lower rails 15, 16 are located in the horizontal plane.

The shaft 2 with the gear wheels 4, 5 kinematically connected with the generator 17.

The grooves of the toothed wheels 4, 5 have a radius equal to half the diameter of the rollers 12.

Hydroelectric fixed in the soil by, for example, the supports 18, in the aquatic environment only remain submerged vanes, located at the installation of hydroelectric power plants on the lower rails 15, 16. Extreme support hydroelectric power plants are bearing.

The hydroelectric power plant is installed in the channel 19, equipped with a reinforced concrete tray 20 along the fluid flow.

To increase the speed of the flow channel, in which you installed HPP, can be located downstream near the drain or overflow of the dam, creating a drop of water.

The presence of the channel 19 allows not only reduced the th effect of HPP on the environment, but to increase the speed of flow of the fluid passing through the channel, and thereby increase the capacity of hydroelectric power.

At the beginning of the channel 19, and at the river, establish gateways 21, 22 or valve to regulate the flow, including floods. The channel can be additionally equipped catching large debris and/or ice device, representing, for example, a grid located in front of the gateways perpendicular to the flow.

Each carriage consists of two mounted opposite each other of the fixed cheeks 23 and 24, made in the form of plates and interconnected top 25, 26 and bottom 27, 28 axes mounting on the upper axis of the fixed blade 10, and the lower rollers 12 and movable cheeks 11. To prevent displacement of the blades, as well as their additional fixing on the axis of the fixed pivot bushings (not shown).

The proposed hydroelectric power plant can be equipped with a housing (not shown)immersed in the water only partially protects the upper part of the hydroelectric power plant, located above the water surface, from education in the winter ice and icicles, and the impact on the blade side of the wind. The body is a welded hollow design, the ends of which in the lower part are coaxially arranged two holes for the passage of the stream.

The implementation of the claimed what about the invention is confirmed by the example of a specific implementation.

Hydroelectric power plant operates as follows.

Frame 1 hydropower installed along the fluid flow and is fixed in the soil by means of bearings 18, and the driving shaft 2 is located upstream of the driven shaft 3. In the aquatic environment shipped only blades, which when installed on the lower rails 15, 16.

Passing along the installation, the flow of the current environment acts on the blade, making the links-the carriage begins to move along the lower guide rails 15, 16.

Links-carriage 9 skip to the bottom of the guides 15, 16 on the upper rails 13, 14 by passing on the circumferences of the wheels 6, 7 of the driven shaft 3. On the upper guide links carriage 9 is moved on rollers 12 under the action of its own weight and, passing through gears 4, 5, the rollers 12 engage for their slots and return to the lower rails 15, 16.

Movement parts-carriages with blades causes continuous rotation of the slave and host of the shafts, the latter of which is kinematically connected with the generator 17. The driving shaft 2 transmits torque to the shaft of the generator 17 or on a common shaft, if you have multiple GES.

Thus, the kinetic energy of the flow is converted into electricity.

The inventive design of hydroelectric power allows you to put the e in the channel, equipped with gateways, which, in turn, helps to protect the installation against pollution, including waste and ice during the flood, algae, as well as to increase the power generated by the HPP.

Parallel installation of at least two hydropower plants will allow for the continuous production of electricity in case of failure of one of them.

In addition, the claimed invention is an environmentally friendly installation and virtually no effect on the flora and fauna of the pond.

In addition, significantly simplifies the access to hydro during repair and maintenance work, you will be able to notice and fix the problem.

1. Hydroelectric conveyor-type submerged in the fluid and including a frame with at least two pairs of rails and installed on it from opposite sides, with the possibility of rotation of the shafts, one of which is kinematically connected to an electric generator, a flexible element covering the shafts, made in the form of a closed chain of transmission with a fixed blade with axis rollers, characterized in that located in equipped gateways channel along the stream partial immersion of the body in the fluid, the flexible element consists of two interrelated parts-carriages with combined l the mouths, consisting of at least four V-shaped plates arranged in pairs opposite each other, with the plates in each pair are parallel to each other, the shafts are placed at different levels and at their ends mounted wheels, with wheel shaft located below made gear and a smaller diameter than the wheels of the other shaft, the shaft with the wheels of a smaller diameter is located upstream water than the shaft with the larger wheels.

2. Hydroelectric pipeline type according to claim 1, characterized in that the blades are made of a core material, which is used, for example, bent sheet rolling profile.

3. Hydroelectric pipeline type according to claim 1, characterized in that the link-carriage is equipped with four rollers.

4. Hydroelectric pipeline type according to claim 1, characterized in that the channel is equipped catching debris device, such as a grid.



 

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