Conveyor-type hydraulic power station

FIELD: power industry.

SUBSTANCE: conveyor-type hydraulic power station contains guide channel, actuating device with flexible element in form of closed chain-drive comprising connected with each other links-carriages with blade units, each contains symmetrical blade pairs. The guide channel contains main and secondary channel, its output is equipped with shutter. Each channel is divided to the contraction, work and diffuser parts. Each blades pair includes vertically oriented small and large blades. Large blades are secured on axles provided with rollers, and small blades are connected with each other and with large blades by means of the horizontally oriented arc-like jumper-blade. At that if the guide channel contains one secondary channel, then the later is located above the actuating device, and if several secondary channels, then they are arranged along the main channel from both sides. The secondary channels are connected with each other and with main channel by means of the tapering branches and windows equipped with shutters and guide partitions that guide the flow to the main channel and installed before the windows inside the main channel at angle to the casing.

EFFECT: increased power of hydraulic power station.

3 cl, 9 dwg

 

The invention relates to hydropower, in particular to devices designed to convert the flow energy of a fluid medium into electric.

We offer for protection of the hydroelectric power plant (HPP) conveyor type allows you to use the energy of both large and small rivers and open drains synthetic origin, for example of the main water utilities.

The prior art discloses river hydropower plant using the potential energy of water due to the concentration of pressure as the difference in levels, of which the most common hydroelectric dam that contains the dam, reservoir, building with working bodies in the form of hydraulic turbines connected to electric generators (see, for example, patent RU 2232289 for the invention of "Hydroelectric power", the filing date 26.11.2002 G., publ. 10.07.2004 ).

However, the use of power plant due to their negative impact on river ecosystems, the possibility of flooding caused by dam failure, and, as a consequence, the emergence of social problems, in particular related to the relocation of residents. In addition, these designs are usually bulky, and the cost of their construction is high.

These drawbacks are eliminated in damless hydropower plants to which the invention relates.

From UB�nya technique known streaming hydroelectric power, containing submerged hull and set a working body, made in the form of chain paddle conveyor, circling vertically spaced sprockets and kinematically associated with the generator, each blade of the conveyor is in the form of rotatable around the horizontal axis of the damper, wherein the axle is attached to the blades symmetrically to form two parts, one of which is heavier than the other (see patent RU 2086799 for the invention of "Streaming hydroelectric power", the filing date 15.07.1992 G., publ. 10.08.1997 G. ).

The disadvantages of this design is due to the difficulty of passing water flow through hydroelectric due to the significant trajectory emerging from its wrapping (diffraction), which reduces the efficiency and capacity of hydropower. In addition, the installation, repair and maintenance of such hydroelectric power plants is carried out at a full stop of hydroelectric power and, consequently, long-term cessation of its work.

Also known engine for energy recovery from the current environment, containing immersed in the last frame with passage Windows installed in the frame with its opposite sides with the possibility of rotation of the shafts, one of which is kinematically connected to an electric generator, a flexible member covering the said shaft and provided with blades, to be enshrined�and rotatably, thus on the inner longitudinal walls of the frame rails formed with grooves and the blades are provided with pins with rollers mounted in said slots, and the frame is placed on its longitudinal side facing transversely of the fluid flow, while passing the Windows are made on its longitudinal walls, the area of the curvilinear movement of the flexible element mounted for engagement with the blade means to change their situation relative to that of the flexible element on the opposite, with the blades on a flexible element attached to its middle part and in working condition is installed at an angle to the flow direction and with the possibility of overlapping mezhlopastnye intervals of one branch of blades of another branch, the frame is made of at least two pairs of guide pins with rollers fixed to the lateral edges of the blades, and each roller pin is placed in a separate guide corresponding pair (see patent RU 2166664 for the invention of "an Engine for energy recovery from the current environment", the filing date 19.06.2000 G., publ. 10.05.2001.

The disadvantages of this device are related to the fact that when carrying out the work it must be fully submerged in the water flow, resulting in slyvania him in sand and seaweed, which, in turn, hinders the movement of the blades and ito�e, not only leads to reduced efficiency of the entire installation, but also the failure of its individual parts and assemblies. Horizontal placement of the shafts, as a rule, leads to a lateral deflection of the flexible element.

The prototype of the claimed invention is a hydroelectric power plant conveyor type, immersed in the fluid and comprising a frame with at least two pairs of rails and mounted thereon on opposite sides of rotatable 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 drive with fixed blades, equipped with axes with rollers. Hydroelectric placed in equipped the gateways along the stream channel with partial immersion of the body in the fluid. The flexible element consists of interconnected links-carriages with combo blades, consisting of at least four V-shaped plates arranged in pairs opposite each other, the plates in each pair are parallel to each other, the shafts are located on different levels and at their ends are mounted the wheel, wherein the wheel shaft located below made gear and a smaller diameter than the wheels of the other shaft, shaft with wheels of smaller diameter is higher for water than the shaft with wheels larger diameter�tra (see patent RU 2515695 for the invention of "Hydroelectric power plant conveyor type, filing date 13.08.2012 G., publ. 20.05.2014,).

The disadvantage of this hydroelectric power is its low power.

The technical result, which directed the claimed invention is the improvement of hydroelectric power.

The specified technical result is achieved in that the hydroelectric plant conveyor type, containing a guide channel body, which made the window, and the working body, which includes a frame with at least two pairs of rails and mounted thereon on opposite sides of rotatable shafts, one of which is kinematically connected to an electric generator, the flexible covering mounted on the ends of the shafts of the wheels of different diameters and formed as a closed chain consisting of interconnected links-carriages with blocks of blades, each of which contains at least two symmetrical pairs of blades, made in the form of plates arranged in pairs, the blades in each pair are parallel to each other, a shaft with a toothed wheel of smaller diameter is higher for water than the shaft with wheels of larger diameter, according to the invention the guide channel includes a base and at least one in�photogallery channel the output of which is equipped with a damper, wherein each channel is divided into convergent, and working of the diffuser, consistently placed at an angle to the flow stream, each pair of blades includes a vertically oriented small and large blades is arcuate and convex side located to the longitudinal axis of the main channel with the formation of an extended passage for the flow, with large blades mounted on axles fitted with rollers, and small blades and large blades through a horizontally oriented arc-shaped blades-jumper, made or solid, or from interconnected individual parts and installed with the concave side to the axis of the rollers, and if the guide channel contains one auxiliary channel, the latter is located above the working body, and, if multiple auxiliary channels, the latter are located along the main channel from both sides, while the auxiliary channels are interconnected with the main channel by a narrowing of taps and Windows, provided with valves and guides partitions that serve to direct the flow in the main channel and mounted in front of Windows inside the main channel at an angle to the body. The guide channel is provided with gateways.

The main and www�support channels is equipped with a capture trash devices for example nets placed in front of the gateway.

The converging portion of the guide channel is installed at an angle of 0.5 to 20° relative to the flow stream, and the working and the diffuser at an angle of 0.5 to 15°.

The bottom of the main channel is made V-neck.

The Windows in the body is made with flaps in front, upper and lateral sides. Shutters serve to direct the flow of air at the upper part of the blocks of the blades.

Auxiliary channels can be open or closed.

The blades are made of profile material, which is used, for example, bent sheet steel.

Link-the carriage is equipped with four rollers.

Links-the carriages are connected to each other by means of the movable cheeks. Hydroelectric protected with anticorrosive coating. Auxiliary channels can be provided with pockets for entry of fish during spawning.

The invention is illustrated by drawings,

where Fig. 1 is a side view of the working body hydroelectric conveyor type;

Fig. 2 is a top view of the guide channel with two auxiliary channels;

Fig. 3 is a side view of the guide channel;

Fig. 4 - cross section of a hydroelectric power plant conveyor type, installed in the guide channel with two auxiliary channels;

Fig. 5 is a side view of the hydroelectric power plant conveyor t�PA installed in the guide channel with one auxiliary channel;

Fig. 6 - cross section of a hydroelectric power plant conveyor type, installed in the guide channel with one auxiliary channel;

Fig. 7 is a top view of part of the carriage;

Fig. 8 is a front view of part of the carriage;

Fig. 9 is a side view of part of the carriage.

The arrows in the drawings show the direction of flow.

The hydroelectric plant is set in the soil of the guide channel 1 through, for example, the supports 2 so that is immersed in the water flow remain only the blocks of the blades 3, which is by the installation of hydroelectric power on the lower rail 4. The extreme supports of hydroelectric power are structural.

The proposed hydroelectric power plant is equipped with a housing (not shown) that protects it against the formation of ice in winter, and also from the adverse effects on the blocks of the blades 3 side and head wind. The body is made of welded frame and sandwich panels. At the top, side and end parts of the housing is made sash Windows.

The creation of the guide channel 1 allows not only to reduce the negative impacts of hydropower on the environment, but also increase the speed of water flow through the blocks of the blades 3, and thereby increase the capacity of hydroelectric power.

The input direction�future of the channel 1, and in the riverbed can be mounted gateways 5 or valves designed to control flow, including during floods. The guide channel 1 may be further equipped with a trapping large debris and/or ice device, for example, made in the form of a grid (not shown) located in front of the gateways perpendicular to the flow.

We offer for protection of the hydroelectric power plant conveyor type contains a working body, which includes a frame 6, is partially immersed in a water stream, and its installed with the possibility of rotation of the two shafts is a leading 7 and led 8, wherein the drive shaft 7 is located further upstream than the output shaft 8. On both ends of the lead 7 and the driven shafts 8 mounted wheels 9 and 10, respectively (the drawing shows only the wheels, placed one end of each shaft, and the wheels 9 of the drive shaft 7 is a gear and a smaller diameter in comparison with wheels 10 driven shaft 8.

The wheels 9, 10 covers the flexible element 11, which represents in the form of a closed loop chain drive formed by the interconnected links in the carriages 12, provided with blocks of the blade 3 and the roller 13, by which the blades are moved by two pairs of guide: top 14 and bottom 4. Links, and the carriage 12 is connected through movable cheeks 15, made in the form of a rectangular �the Lastin.

The shaft 7 with the gear wheels 9 through gear kinematically connected to an electric generator (not shown). The grooves of the toothed wheels 9 have a radius equal to half the diameter of the rollers 13.

Block of the blade 3 comprises at least two symmetrical pairs of blades, placed opposite each other, wherein each blade is formed as an arcuate plate. A pair of blades has a small blade 16 and a large blade 17. The blades in each pair are parallel to each other.

The blades 16, 17 are vertically oriented and positioned convex side at the angle of 15-35° to the longitudinal axis of the main channel 18 with the formation of an extended passage for the thread. Large blades 17 mounted on shafts 19, provided with rollers 13, and small blades 16 are connected among themselves and with large blades 17 through a horizontally oriented arc-shaped blades-jumper 20, made, or whole, or of interconnected individual parts and installed with the concave side towards the axis of the rollers 13 at the angle of 10-30°.

This configuration and arrangement of the blades contribute to the "straightening" of the water flow and accelerate the flow through the blades provide increased hydropower capacity.

The guide channel 1 consists of a main channel 18 and at least one auxiliary channel 21, each Kana� divided into convergent 22, working 23 and the diffuser 24 pieces arranged one behind the other at an angle to the flow. The working body of the hydroelectric power station is located in the main channel 18.

If the guide channel 1 is equipped with one auxiliary channel 21, the latter is located above the working body of the plant (Fig. 5, 6). In this case, the hydroelectric power plant to increase the flow rate can be set at the point of discharge of water ready hydraulic structures such as dams.

If the guide channel 1 contains several auxiliary channels 21, for example two, these channels installed along the main channel 18 on both its sides (Fig. 2-4).

Auxiliary channels 21 are connected between themselves and with the main conduit 18 through a narrowing in the direction of the main channel bends 25 and Windows 26, is provided with valves 27 and the guide walls 28 serving to direct the flow in the main channel 18 and, accordingly, blocks of the blades 3, and mounted in front of Windows 26 inside the main channel 18 at the angle of 15-45° with respect to the body.

The outputs of the auxiliary channel 21 is also equipped with dampers 27.

Hydroelectric power plant operates as follows.

Frame 6 hydroelectric power stations installed along the water stream and is fixed in the soil by means of supports 2, wherein the drive shaft 7 RA�on upstream than the output shaft 8. In the aquatic environment remain submerged only the blocks of the blades 3, which when mounted on the lower guide rails 4.

Passing along the installation of the water flow affects the blocks of the blades 3 and links, and the carriage 12 will move along the lower guide rails 4.

Links-carriage 12 migrating from lower rail 4 on the upper rails 14 by passing on the circumferences of the wheels 10 of the driven shaft 8. Further links, and the carriage 12 is moved on the rollers 13 along the upper guide rails 14, including at the expense of its own weight. Passing through the gear 9 of the drive shaft 7, the rollers 13 engage for them in the grooves, after which the links of the carriage 12 returns to the lower rails 4.

Movement links-carriages 12 with the blocks of the blades 3 provides a continuous rotation of the driven 8 and driving shafts 7, the last of which through gear kinematically connected to an electric generator. The drive shaft 7 transmits torque to the shaft generator on a common shaft, in the case of installation of several hydroelectric power station.

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

The inventive design of hydroelectric allows you to protect the installation from clogging, including debris, ice during floods, algae, and thereby further increase the power�ü, generated by the dam.

Parallel installations simultaneously at least two hydroelectric power stations will provide continuous electricity generation in case of breakage of one of them. Partial immersion hydropower plants in the aquatic environment can significantly simplify access to it when carrying out repair and maintenance work, the time to notice and fix the problem.

The inventive hydroelectric power plant can increase production capacity and is environmentally friendly hydraulic structure, as virtually no impact on the flora and fauna of the reservoir.

1. Hydroelectric power plant conveyor type, containing a guide channel body, which made the window, and the working body, which includes a frame with at least two pairs of rails and mounted thereon on opposite sides of rotatable shafts, one of which is kinematically connected to an electric generator, the flexible covering mounted on the ends of the shafts of the wheels of different diameters and formed as a closed chain consisting of interconnected links-carriages with blocks of blades, each of which contains at least two symmetrical pairs of blades, made in the form of plates arranged in pairs, the blades in each pair are parallel to each other, a shaft with gears� smaller diameter is located upstream of the water than the shaft with wheels of larger diameter, characterized in that the guide channel includes a base and at least one auxiliary channel, the output of which is equipped with a damper, wherein each channel is divided into convergent, and working of the diffuser, consistently placed at an angle to the flow stream, each pair of blades includes a vertically oriented small and large blades is arcuate and convex side located to the longitudinal axis of the main channel with the formation of an extended passage for the flow, with large blades mounted on axles fitted with rollers, and small blades and large blades through a horizontally oriented arc-shaped blades-jumper, made or whole, or of interconnected individual parts and installed with the concave side to the axis of the rollers, and if the guide channel contains one auxiliary channel, the latter is located above the working body, and if multiple auxiliary channels, the latter are located along the main channel from both sides, while the auxiliary channels are interconnected with the main channel by a narrowing of taps and Windows, provided with dampers and guide walls, officials to direct the flow into the OS�IOD channel and mounted in front of Windows inside the main channel at an angle to the body.

2. Hydroelectric power plant conveyor according to claim 1, characterized in that the guide channel is provided with gateways.

3. Hydroelectric power plant conveyor according to claim 1, characterized in that the main and auxiliary channels is equipped with a capture trash devices such as nets.



 

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2 cl, 3 dwg

Power plant // 2552589

FIELD: power engineering.

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EFFECT: increased flowing medium energy utilisation rate.

7 cl, 3 dwg

FIELD: power industry.

SUBSTANCE: invention relates to flow energy converters located along it and taking hydraulic energy at the distance determined by the converter length. A mini hydro-electric power plant includes a screw consisting of a cylinder with blades on its surface. The cylinder is connected to the generator and located along a water flow. The blades are made in the form of several pipes uniformly located along the cylinder surface along a helicoid line. A confuser with maximum cone diameter equal to the cylinder diameter and a diffuser the minimum diameter of which is equal to a sum of the cylinder diameter and two diameters of pipes at their inlet are connected to the cylinder. Outlet ends of the pipes are provided with tips installed at a tangent to cylindrical surface.

EFFECT: invention is aimed at increase of efficiency and specific output power owing to increasing the effect of obtaining higher pressure from a moving flow and simultaneous use of a jet component of the flow.

2 cl, 1 dwg

FIELD: energy industry.

SUBSTANCE: hydro-electric power-plant comprises electric generators, bearings and a float. On the base of the device the confusers and diffusers are mounted one behind the other. Between the confusers and diffusers the blade grid is located with the ability of vertical motion relative to the confusers and diffusers. The frictionless bearings are mounted on the support above the water flow.

EFFECT: obtaining electrical power with high efficiency, reliability and constant rate of rotation of the electric generators.

2 dwg

FIELD: power industry.

SUBSTANCE: invention relates to hydropower engineering, namely to hydroelectric power plants. A run-of-river hydroelectric power plant 2 is installed on a basement 26 and contains several rigid, water-tight housings 6 with an elliptic cross section fitted with turbine modules 8 arranged with a possibility of transmission of rotation from shafts 13 enclosed by a ring 27, turbines 12 through free-wheeling clutches 14 to the common shaft 15 passing through an onshore well 21 with the ground river water circulating in it through a reducer 16 to the rotor shaft of an electric generator 17 installed on the shore 3. In each turbine module 8 the plane of rotation of the turbine 12 blades is inclined at an angle to the longitudinal axis of the flow 1, in the zone of the hub 18 of the turbine 12 to which blades are fastened. On a guiding lattice 11 located upstream the turbine 12 a cone-shaped body 25 is installed with the top oriented upstream. From the back side on the hub 18 of the turbine 12 a hemispherical body 19 is installed. Upstream and downstream the turbine module 8 a shutoff device 7 is installed.

EFFECT: invention is aimed at providing of extraction of the maximum possible part of kinetic energy of water, which freely flows in the river, for its conversion into electric power.

21 cl, 9 dwg

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