Damless hydro-electric power plant

FIELD: power industry.

SUBSTANCE: invention can be used in hydraulic power industry as an energy conversion device of a gravity water flow to electrical energy. A damless hydro-electric power plant includes a blade wheel and a housing installed on a support. The central vertical part of the housing is made in the form of a hollow sealed cylinder filled with water or air when necessary. The horizontal part of the housing, which is rigidly attached to a cylinder, represents a truss, on which there arranged is an annular track for support rollers of a bladed wheel, a bladed wheel rotated about the hollow cylinder, a support of driven sprocket 6 of the first stage of a kinematic circuit for transmission of revolutions from the bladed wheel to an electrical energy generator, side enclosures functionally performing a role of input and output diffusers A, B.

EFFECT: invention is aimed at improvement of an efficiency factor, simplification of a design and increase of unit power.

4 cl, 2 dwg

 

The invention relates to hydropower, in particular to devices energy conversion gravity flow (river and sea currents) into electric energy.

Known hydroelectric installation, made in the form of a catamaran, with nozzle before the start of the working channel and diffuser after graduation, with the main turbine in the working channel with the running part, arranged in two rows in a staggered manner, with the main shafts of the turbines installed in the hulls and kinematically associated generators of electric current, comprising in the output cone of additional turbines with vertical axes of rotation and kinematically associated generators of electric current, a catamaran hull have in terms of trapezoidal form, the working channel between the hulls is divided by a partition into separate working channels, passing in the output cone in the auxiliary channels immersed in them for more turbines, the details of the flow part of the main turbines made in the form of buckets, at the end of the external contours of the hulls fixed videocode (see SU 1474317 A, 23.04.1989, F03B 7/00).

The main disadvantages of this hydroelectric plant are: the impossibility of functioning in the winter time PR is the presence of the ice cover; limited area of contact of the blades of the main turbines with flow of water due to the high location of their axes of rotation; a high intensity due to the necessary use of a catamaran.

The closest in technical essence and the achieved effect, taken as a prototype, is an all-season hydroelectric dam, which has an impeller with a folding propeller is located horizontally, and the vertical casing is divided into drums and mounted on a support for rotation by the engagement of the rollers with all the guide associated with the outer rotary speed of the opening blades, axes of rotation are offset from each other by the same angle. Primary and backup power generators mounted on the support and connected with the casing and the toothed wheel mechanical transmission. The inner housing is fitted with a grating, which is a continuation of the outer rotary blades, and a stationary inner blades, made from loosely attached sash, based on a lattice. The outer blades are fitted to ensure overlap of the inner blades in the off position and their earlier entry into work (see EN 1836586 A3, 23.08.1993, F03B 9/00).

The main disadvantages of this dam hydroelectric for accom is imago use are: the location of the plant at the bottom of the water stream, where to actively move the abrasive particles of sand and other sediments, negatively affecting the efficiency of friction; the presence of structural assemblies that require precise kinematic interaction contact details; multi-stage kinematic diagram of the multiplier, reducing the efficiency of the device.

The basis of the invention is the task of providing an adjustable depth of hydropower with its location on the bottom of the water flow and internal flow in a suspended position, reducing the number of steps of multiplication, increase efficiency, facilitate delivery of hydroelectric power to the place of its operation and easy maintenance and repair.

The solution of this problem is achieved by the dam hydroelectric with the impeller and the housing is mounted on a support according to the invention, the Central vertical part of the body is in the form of a hollow sealed cylinder filled as needed with water or air, and the horizontal part of the housing, rigidly connected with the cylinder, is a farm, on which is placed a circular track under the support rollers impeller, impeller rotating around the hollow cylinder, bearing driven sprocket pervouchine kinematic scheme of transfer of momentum from the impeller to the electricity generator, the side fence, the functional role of input and output drivers.

In addition, the impeller is a spatial design in the form of a ring, the ring sides and the inner annular surface is closed, and the outer ring side open, and the inner space of the impeller is divided into sectors, each of which is placed the blade can rotate within the sector on an axis located on the side of the outer ring surface and the free end rests on a bracket fixed to the inner annular surface of the impeller, in addition, on the outer side of the inner annular surface of the impeller mounted rollers with a vertical axis of rotation, and under the outer annular surface of the wheel is placed a roller with a horizontal axis of rotation, through which the impeller during rotation based respectively on the side surface of the cylinder and an annular track, located on the farm, and over the outer annular surface of the impeller at its perimeter secured to the sprocket chain.

In addition, the kinematic scheme of rotation from the impeller to the generator power three-and contains: in the first stage of the transmission is attached to the top b is a similar surface on the perimeter of the impeller sprocket, the conveyor chain and the driven sprocket, placed on the axis of a support fixed on the farm; in the second stage of the transmission is fixed on the driven sprocket of the first stage frame along the perimeter of the fixed stars, the conveyor chain and the driven sprocket placed on an axis fixed to the upper plate cylinder; in the third stage of the transmission is fixed on the driven sprocket of the second stage frame along the perimeter of the fixed stars, the conveyor chain and the driven sprocket, transmitting rotation to the shaft, one end of which is placed in a support fixed to the upper plate cylinder, and the other placed on the technology platform and contains a structural element, through which the shaft interacts with the shaft of a generator of electricity.

In addition, dam hydroelectric power plant includes a technology platform located above the cylinder and rigidly associated with him, on which is placed an electric power generator, compressor, actuator valves, providing, as necessary, the flow of water and air in the cylinder, fasteners anchoring devices with devices for regulating the tension of the flexible links of the anchor device.

The proposed solution differs from the prototype and similar devices that structural scheme of the connection of the vertical part of the hull with it the horizontal part allows you to place the dam hydroelectric power station on the weak bottom ground water flow based on a large surface of the lower bottom of the cylinder. When this movable part of the proposed hydroelectric power plants are located outside the area of active transportation abrasive particles transported by water flow.

The presence of the cylinder, filled as needed with water or air, enables the location of the proposed dam hydroelectric as on the bottom of the reservoir, and directly in the thickness of the water flow in the outboard position. This differs from prototype facilitates the delivery of dam hydroelectric to the place of its operation, and further facilitates routine inspection and, if necessary, repair of moving parts of the device.

The existence of the closed annular surfaces of the sectors of the impeller in the proposed dam hydroelectric, during the time of contact of the movable blade with the supporting bracket, creates in the sector impeller space in the form of a bucket, thereby increasing the power of the effects of water flow on the turning vane wheel.

Use the kinematic scheme of transmitting rotation from the impeller to the electricity generator and the traction chain and sprockets, among which some are rotating, and the other fixed to rotating frames, you can reduce the number of stages of the transfer speed of up to three due to the possibility of obtaining large transfer the numbers in the scheme (up to 50 or more) and provides high efficiency. In addition, the proposed solution allows you to create a similar device of higher capacity, limited only by strength properties of structural materials.

The technical result of the claimed technical solution is to expand the scope of dam hydroelectric due to its location on the bottom of the reservoir, and directly in the thickness of the water flow, and simple constructive and original kinematic scheme of transmitting rotation from the impeller to the electricity generator allow you to create a dam hydroelectric unit capacity, limited only by strength properties of structural materials.

Further the invention is illustrated in conjunction with illustrative material, which shows the following: Fig.1 - structural diagram of the proposed dam hydroelectric, side view; Fig.2 - scheme of the mutual arrangement of the functional elements of a design, type in the plan.

Dam hydroelectric power plant includes a housing, a vertical portion of which is made in the form of a hollow sealed cylinder 1 connected to it by a technology platform 2, and a horizontal portion in the form of farm 3.

On farm 3 fixed annular track 4, the support 5 guest stars 6 the first is open animation speed impeller 7, the side fences 8 in the form of input (zone a) and output (zone) diffusers, as well as posted impeller 7 in the form of a ring with a vertical axis of rotation, the upper and lower surfaces of which are closed around the perimeter of the ring in the lower part are support rollers 9 with a horizontal axis of rotation, at the top of the sprocket 10 of the first stage multiplier of revolutions of the impeller 7, and the outer side of the inner annular surface of the wheel 7, the rollers 11 with a vertical axis of rotation, through which the vane wheel 7 during the rotation rests on the lateral surface of the cylinder 1. The inner space of the impeller 7 is divided into sectors, each of which is placed the blade 12 can rotate on her axis 13 so that in the zone of active force impact of water flow on the blade 12 it is in contact with the supporting bracket 14 and forms a space in the form of a bucket, and in the area of passive exposure (in a reverse direction of movement of the wheel 7) is turned toward the outer annular surface of the vane wheel 7, thereby revealing the space in the form of a bucket and reducing resistance to rotation of the impeller 7.

Kinematic scheme of transmitting rotation from the impeller 7 to the electricity generator 15, located on platform 2, which is stepped.

The first step kinematic scheme transmission speed (animation) includes sprocket 10, mounted stationary on the perimeter of the impeller 7, the conveyor chain 16 that transmits the force from the circular movement of the sprocket 10, and the driven sprocket 6, freely rotating on an axis fixed to the support 5.

The second stage transfer rotation includes a frame 17 attached to it a sprocket 18, the conveyor chain 19 and the driven sprocket 20. The frame 17 is rigidly mounted on the driven sprocket 6 first-stage transfer rotation.

The third step of transmitting rotation includes a frame 21 mounted on it a sprocket 22, the conveyor chain 23 and the sprocket 24, located on the shaft 25. The frame 21 is rigidly connected with a sprocket wheel 20.

Sprocket 24 transmits rotation to the shaft 25, one end of which is placed in the support 26 fixed to the upper plate cylinder 1, and the other end placed on the technological platform 2 and contains a structural element 27, for example a sleeve through which the shaft 25 communicates with the shaft of the electric power generator 15.

On platform 2 hosted sites fastening and tensioning flexible links 28 of the anchor device, a compressor, a room for staff, control valves, regulating the filling of the cylinder 1 with water or air, and means, under the rules of security is barb for objects located on the water (not shown due to being well-known).

The proposed dam hydroelectric power plant (HPP) works as follows.

The construction of the dam hydroelectric recorded in the off position the blades 12 of the impeller 7 tow in a floating position to the place of operation (where the beforehand installed anchor device when filled with air cylinder 1.

On-site dam hydroelectric her fix on anchor devices by flexible links 28, by adjusting the tension of which is hydroelectric deploy nozzle area (A) towards the stream, join the network of electricity generator 15 with underwater cable (not shown in the appearance of being well-known), unlocks the blades 12 of the impeller 7 and by controlled filling of the cylinder 1 with water and the necessary tension of the flexible links 28 are installing a dam hydroelectric power plant at the desired depth of water flow.

Water flow entering through the inlet diffuser inside the impeller 7, acts on the blade 12 active part of the impeller 7 and turns around the axis 13 so that their movable end rely on the bracket 14 and form in the sectors of the active part of the impeller 7 space in the form of a bucket,thus increasing the force of the water flow turning vane wheel 7 about the axis of its rotation. When this impeller 7 its lower end portion through the support roller 9 with a horizontal axis of rotation is based on the circular track 4, and the inner annular surface through the medium of the rollers 11 with a vertical axis of rotation on the side surface of the cylinder 1. The blades 12, which is in the passive part of the vane wheel 7, which rotates in the direction opposite to the direction of water flow, rotated around the axis 13 and open the bottom of each bucket in its sector, resulting in a decrease in the resistance to rotation of the impeller 7.

When the rotation of the impeller 7 of the sprocket 10, fixed at its perimeter, perform the stretching conveyor chain 16 that transmits the rotation of the driven sprocket 6 placed on an axis fixed to the support 5. Further rotation of the sprocket 6 is passed on to the frame 17, is rigidly connected with a sprocket wheel 6, and means mounted on the frame 17 of the sprocket 18, exercise stretching circuit 19, by means of which the rotation is transmitted to the sprocket 20 and fixed thereto the frame 21. Sprocket 22 fixed to the frame 21, at its rotation exercise stretching circuit 23 and through her means to transmit the rotation of the sprocket 24, which is located on the shaft 25. With the shaft 25, the rotation shaft of the electric power generator 15 is passed through constructive cell battery (included) is that 27.

The technical advantages of the proposed technical solution, compared with the prototype are the following:

extension of application due to the possibility of placing dam hydroelectric as weak bottom soils, and the thickness of the water flow;

- simple design scheme with a small number of processed mechanically units and components allows you to create a dam hydroelectric larger sizes with great capacity, limited only by strength properties of structural materials;

- ease of transport dam hydroelectric to the place of installation and operation with the help of tugs;

- increase efficiency dam hydroelectric through the use of a three-stage kinematic scheme transfer torque (rpm) impeller for an electric power generator.

After describing the best option proposed dam hydroelectric specialists in this field of knowledge should be obvious that all of the above is only illustrative and not restrictive, as represented by this sample implementation. Numerous possible modifications and variations of the specific manufacturing of the proposed dam is hydroelectrically, in particular, the number of blades type of chains and sprockets in chain transmission, materials etc., can vary depending on the purpose and nature of operation of the proposed dam hydroelectric and, of course, are within the scope of one of the conventional and natural approaches in this field of knowledge and are considered within the scope of the proposed technical solution.

The essence of the proposed technical solution is the ability to provide turning vanes in the zone of active water flow inside the impeller, which allows you to create space in the form of a bucket, which, in turn, significantly increases the force of the water flow on the turning vane wheel, and the entrance of the diffuser contributes to the formation of water flow directed to the blades of the impeller, and providing an early entry into work, and, at the same time, the output of the diffuser contributes to a more complete extraction of energy from the water flow due to later withdraw from contact with the active part of the water flow inside the impeller, and the application of the kinematic scheme with a high gear ratio of the speed of the animation enhances the efficiency of the proposed dam hydroelectric and, thanks to the combination of these improvements, the proposed solution has purchased the above and other advantages. The use of combinations of certain structural elements of the whole population claimed, of course, limits the range of benefits listed above, since other constructions are similar to those that already require no creativity from the designers and engineers, and may not be considered as the results of their creative work or intellectual property, the relevant requirements of the current legislation for the protection of security documents.

1. Dam hydroelectric power plant with the impeller and the housing is mounted on a support, characterized in that the Central vertical part of the body is in the form of a hollow sealed cylinder filled as needed with water or air, and the horizontal part of the housing, rigidly connected with the cylinder, is a farm, on which is placed a circular track under the support rollers impeller, impeller rotating around the hollow cylinder, bearing driven sprocket of the first stage of the kinematic scheme of transfer of momentum from the impeller to the electricity generator, side boom, functional role of input and output is underwater diffusers.

2. Dam hydroelectric power plant under item 1, characterized in that the impeller is a spatial design in the form of a ring, the ring sides and the inner annular surface is closed, and the outer ring side open, and the inner space of the impeller is divided into sectors, each of which is placed the blade can rotate within the sector on an axis located on the side of the outer ring surface and the free end rests on a bracket fixed to the inner annular surface of the impeller, in addition, on the outer side of the inner annular surface of the impeller mounted rollers with a vertical axis of rotation, and under the outer annular surface of the wheel is placed a roller with a horizontal axis of rotation, through which the impeller during rotation based respectively on the side surface of the cylinder and an annular track, located on the farm, and over the outer annular surface of the impeller at its perimeter secured to the sprocket chain.

3. Dam hydroelectric power plant under item 1, characterized in that the kinematic scheme of rotation from the impeller to the generator power three-and includes: a first stage transmission - keeping the data on the upper side surface along the perimeter of the impeller sprocket, the conveyor chain and the driven sprocket, placed on the axis of a support fixed on the farm; in the second stage of the transmission is fixed on the driven sprocket of the first stage frame along the perimeter of the fixed stars, the conveyor chain and the driven sprocket placed on an axis fixed to the upper plate cylinder; in the third stage of the transmission is fixed on the driven sprocket of the second stage frame along the perimeter of the fixed stars, the conveyor chain and the driven sprocket, transmitting rotation to the shaft, one end of which is placed in a support fixed to the upper plate cylinder, and the other placed on the technology platform and contains a structural element, through which the shaft interacts with the shaft of a generator of electricity.

4. Dam hydroelectric power plant under item 1, characterized in that it contains a technology platform which is located above the cylinder and rigidly associated with him, on which is placed an electric power generator, compressor, actuator valves, providing, as necessary, the flow of water and air in the cylinder, fasteners anchoring devices with devices for regulating the tension of the flexible links of the anchor device.



 

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2 cl, 5 dwg

FIELD: power industry.

SUBSTANCE: method of flowing medium energy utilisation involves guiding a fluid medium flow to diffuser 11 where the flow is accelerated and then fed to duct 3 where it is additionally accelerated due to gradual duct 3 cross-section reduction, further conversion of kinetic flow energy into mechanical power by guiding the flow to at least one work wheel 5 with blades 6, installed in the duct 3, and further deceleration of the flow. Blades 6 of the work wheel 5 are tapered in width from inlet towards the outlet edge, side surface of the blades is convex, and outlet edge is shifted against inlet edge.

EFFECT: increased flowing medium energy utilisation rate.

7 cl, 3 dwg

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