Power-generating set exploiting fluid flow energy

FIELD: engines and pumps.

SUBSTANCE: invention relates to water-power engineering, particularly to power plants driven from a fluid flow energy, and can be used for transforming fluid flow power, e.g. that of river streams, into electrical power. The proposed power-generating set comprises a bearing carcass with an action turbine incorporating two vertical shafts running therein with their edges accommodating drive wheels interconnected by lower and upper flexible pull elements between which blades are arranged to foam a closed conveyor located across the fluid flow. The blades working surfaces are arranged at an angle to the flow direction. Note that the conveyor has sliding supports interacting with the guides provided in the carcass upper and lower supports. The carcass accommodates electric generator linked up with one of the conveyor shafts. The said blades represent vertical triangular prisms with their bases being isosceles triangles and the angle at the apex being oriented in one direction. The said sliding supports and every prism are rigidly coupled, by their bases, with appropriate upper and lower pull elements.

EFFECT: higher speed of conveyor and increase power output.

3 cl, 2 dwg

 

The invention relates to hydropower, in particular to the power plants for energy recovery current environment, and can be used to convert the energy flow of the current environment, such as the flow of rivers, into electricity.

Known power unit for energy recovery current environment containing a floating base in the form of a catamaran, hosting the active turbine, as set on edge at an angle to the flow of the current environment an endless belt conveyor mounted on the ribbon blades and generator, kinematically associated with the endless belt conveyor, and each blade made in the form of a ladle able to fold and lie down on the conveyor belt during the transition from working on a single branch of the endless belt conveyor and having on the outer surface of pocket for automatically lifting blades, the flow conditions during the transition from idle to working position (see the description of the invention to the patent of Russian Federation №2269672, Appl. 17.06.2004, publ. 10.02.2006, CL F03B 9/00).

As in the education capacity of the power unit involved not only the flow velocity of the current environment, but the total area of the working bodies of the turbine affected by this stream, known power unit does not take all the energy of the current environment, first, his endless belt is conveyor is at an angle to the flow and secondly, it has a single branch is not involved in the work.

The closest to the essential features of the claimed (prototype) is a power unit for energy recovery current environment containing a supporting framework that hosts the active turbine installed it with the possibility of rotation of the two vertical shafts, the edges of which are drive wheels, which are interconnected upper and lower flexible traction elements, between which is placed the blade, forming a closed pipeline, located across the flow, the blades work surface set at an angle to the direction of flow, a closed conveyor equipped with sliding bearings, interacting with the guides in the top and bottom bases of the supporting frame, and on the raw frame is placed an electric generator, associated drive with one of the shafts of the closed conveyor, and the support frame has at least two pairs of rails, sliding bearings, interacting with the guides located on the front and rear side edges of the blades, at least one of the rails of each pair on a support frame mounted for movement, and the engine is further provided with a screw mechanism to move the specified guide (see the description of the invention to Pat the NTU of the Russian Federation No. 2166664, Appl. 19.06.2000, publ. 10.05.2001, CL F03D 5/02).

The implementation of the blades in the form of flat plates arranged oblique to the flow, and their arrangement on the branches of a closed conveyor located across the flow, it is not possible to create alternating zones to increase the speed of flow of the current environment and areas of high pressure to create hydrodynamic cavitation and a significant increase in efficiency of the power unit. Furthermore, the presence of at least two pairs of rails, the location of rolling bearings, interacting with the guides on front and rear side edges of the blades, and setting at least one of the guides of each pair to the support frame can move significantly complicate the design of a mechanism of rotation of the blades and the design of the power unit as a whole, and the large number of bearings increases the resistance to movement of the endless conveyor and causes the power loss of the power unit.

The problem to which the present invention is directed, is that with the passage of the stream through a closed pipeline to create alternating zones of acceleration of the current environment and areas of high pressure with the formation of hydrodynamic cavitation, which will further increase the speed of the closed conveyor and mo is the capacity of the power unit. The goal is to reduce the number of moving joints moving closed conveyor relative to the supporting frame, which will reduce the resistance to movement of the endless conveyor and also to increase its capacity.

The problem is solved in that in the power unit for energy recovery current environment containing a supporting framework that hosts the active turbine installed it with the possibility of rotation of the two vertical shafts, the edges of which are drive wheels, which are interconnected upper and lower flexible traction elements, between which is placed the blade, forming a closed pipeline, located across the flow, the blades work surface set at an angle to the direction of flow, a closed conveyor equipped with sliding bearings, interacting with the guides in the top and bottom bases of the supporting frame, and a support frame placed generator associated drive with one of the shafts of the closed conveyor according to the invention, the blades are made in the form of upright triangular prisms with bases of isosceles triangles, the angle at the vertex is oriented in one direction and sliding bearings and each prism of their bases are rigidly connected with the corresponding the components of the upper and lower flexible traction elements.

The base of the triangular prisms are arranged with respect to the upper and lower flexible traction elements along the symmetry axis.

A triangular prism is made with positive buoyancy.

The implementation of the blades in the form of upright triangular prisms with bases of isosceles triangles, the angle at the vertex is oriented in one direction and rigid fastening of each of the prisms with their bases on the respective upper and lower flexible traction elements allows you to create active turbine alternating zones of acceleration of the current environment and areas of high pressure with the formation of hydrodynamic cavitation, which leads to additional increase in the rate of movement of the closed conveyor and power of the power unit.

Rigid fastening of the sliding supports at the upper and lower flexible traction elements can reduce the number of moving joints moving closed conveyor relative to the supporting frame, which reduces the resistance to movement of the endless conveyor and also to increase its capacity.

Execution of triangular prisms with a positive buoyancy does not require additional floating funds to keep afloat of the power unit, which also simplifies the design of the device.

The invention is illustrated OPI is the use of his designs and drawings, where:

1 schematically depicts a powertrain;

figure 2 - the same, lateral view.

Power unit for energy recovery current environment contains supporting frame 1. On the frame 1 is placed active turbine installed it with the possibility of rotation of the two vertical shafts 2 and 3, the edges of which are drive wheels 4, 5 connected to the upper 6 and lower 7 flexible traction elements. Between these elements posted by the blades, forming a closed pipeline, located across the stream. The blades are made in the form of upright triangular prisms 8, with reasons 9 isosceles triangles, angle 10 at the apex oriented in the same direction. The side faces 11 of triangular prisms 8 constitute the working surface of the blades and set at an angle to the direction of flow. Closed conveyor equipped with sliding bearings 12, which interacts with the guide 13 in the top and bottom bases of the supporting frame 1 and the sliding support 12 and each prism 8 of their bases 9 are rigidly connected with the respective upper 6 and lower 7 flexible traction elements, with the base 9 of triangular prisms are located towards the upper 6 and lower 7 flexible traction elements along the axis of symmetry 14.

On the raw frame 1 posted by generator 15, svyazannyuyu 16 with one of the shafts of the closed conveyor, for example with the shaft 2.

Triangular prism 8 is made with positive buoyancy.

Power unit for energy recovery current environment is as follows.

Because of the triangular prism 8 have positive buoyancy, the supporting frame 1 is fixed in the river, for example, with the help of cables without additional floating means having a closed pipeline across the flow of the current environment.

The current environment affects front located to the stream side faces 11 of triangular prisms 8 both branches. Triangular prism 8 under the influence of flow begin to move, and the upper 6 and lower 7 flexible traction elements covering the drive wheels 4 and 5, lead and their corresponding shafts 2 and 3 in rotation. Rotation of the shaft 2 through the actuator 16 is transmitted to the generator 15, converting the energy of the flow into electricity.

The implementation of the blades in the form of triangular prisms 8 creates at the entrance to a closed conveyor tapering channels, significantly accelerating the flow of the current environment and creating conditions for the formation of strong cavitation field. Inside a closed pipeline by increasing the flow area of the flow velocity drops, cavitation occurs, the cumulative impact on the flow, which leads to a significant increase of pressure, including on the labour side p is the surface of triangular prisms 8, accelerating the movement of a closed pipeline. Further, at the entrance to the second branch of the closed conveyor flow rate also increases, accelerating the motion of impulse turbine as a whole.

Compared with the prototype of the proposed invention allows to create alternating zones of acceleration of the current environment and areas of high pressure with the formation of hydrodynamic cavitation, which further increases the speed of the closed pipeline and power plant. In addition, the device can reduce the number of moving joints moving closed conveyor relative to the supporting frame, which reduces the resistance to movement of the endless conveyor and also increases its power.

1. Power unit for energy recovery current environment containing a supporting framework that hosts the active turbine installed it with the possibility of rotation of the two vertical shafts, the edges of which are drive wheels, which are interconnected upper and lower flexible traction elements, between which is placed the blade, forming a closed pipeline, located across the flow, the blades work surface set at an angle to the direction of flow, a closed conveyor equipped with sliding bearings, interacting with the guides in the top the lower grounds supporting frame, and on the raw frame is placed an electric generator, associated drive with one of the shafts of the closed conveyor, characterized in that the blades are made in the form of upright triangular prisms with bases of isosceles triangles, the angle at the vertex is oriented in one direction and sliding bearings and each prism of their bases are rigidly connected with the respective upper and lower flexible traction elements.

2. Power unit for energy recovery current environment according to claim 1, characterized in that the base of the triangular prisms are arranged with respect to the upper and lower flexible traction elements along the symmetry axis.

3. Power unit for energy recovery current environment according to claim 1, characterized in that triangular prisms are made with positive buoyancy.



 

Same patents:

FIELD: engines and pumps.

SUBSTANCE: invention relates to water-power engineering, particularly to power plants driven from a fluid flow energy, and can be used for transforming fluid flow power, e.g. that of river streams, into electrical power. The proposed power-generating set comprises a bearing carcass with an action turbine representing an endless conveyor set on its edge across the fluid flow and provided with two drums, enveloped by the upper and lower flexible pull elements between which the double-wing blades are fitted at an angle to the flow direction in operating conditions. Note that the conveyor has sliding supports interacting with the guides provided in the carcass upper and lower supports. The carcass accommodates electric generator linked up with one of the conveyor drums. The said sliding supports are attached to the conveyor flexible pull elements. Note also that the blades wings are articulated with the help of vertical axles. The free side edges of the aforesaid wings are furnished with additional sliding supports interacting with transverse guides rigidly coupled with the upper and lower pull elements. Note also that the said vertical axles are interconnected by flexible con-rods.

EFFECT: simpler design, reduced conveyor resistance, higher power output.

2 cl, 3 dwg

FIELD: engines and pumps.

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EFFECT: simpler design, higher reliability and longer life.

9 cl, 5 dwg

Wind power plant // 2298684

FIELD: wind power engineering.

SUBSTANCE: wind power plant comprises multi-row load-bearing structure provided with the group of vertical take-off shafts. Each of the shafts is kinematically connected with the group of primary wind power converters mounted in rows on the rotating devices near the vertical shaft. The take-off shafts are made of individual links interconnected through couplings and intermediate shaft set in the berating unit provided in the inter-row cross-piece. Each primary converter is made of endless chain mounted on two sprockets horizontally secured to the rotating devices in the bearing units of the shafts whose one end is connected with the vertical take-off shaft through a conical gear.

EFFECT: enhanced efficiency.

FIELD: conversion of river stream energy into electric power.

SUBSTANCE: proposed plant has base in the form of catamaran that mounts current generators and their drive, current parameters stabilizing system, turbine capable of running in fully submerged condition, and its hoist. Turbine is made in the form of belt conveyer installed on edge at certain angle to river stream. Blades made of flexible material are secured throughout entire width and length of belt. Each blade is made in the form of bucket capable of folding and resting on belt during transfer from working to idle side of conveyer, and it has pocket on external surface for automatic raising of blade by river stream during transfer from idle to working position. Turbine hoist has rocker arm for turbine suspension hinged on one end to catamaran and on other end, to turbine frame that mounts generator-drive bevel gear so that longitudinal axes of hoist rocker-arm hinges and longitudinal axis of bevel-gear driven pinion are disposed on same line. In addition, hydroelectric power plant is equipped with device enabling variation of turbine angle of installation to water flow.

EFFECT: enhanced power capacity.

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FIELD: turbines using kinetic energy of liquid flow.

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EFFECT: enhanced turbine efficiency.

1 cl, 4 dwg

The invention relates to hydropower, in particular, to hydroelectric plants, which can be installed in a gravity flow of water at different depths, and to work at any time of the year

The invention relates to hydropower, in particular, to devices for energy conversion of the current environment, such as rivers, tidal, etc

The invention relates to hydropower, in particular, to devices for energy conversion of the current environment, such as rivers, tidal, etc

FIELD: turbines using kinetic energy of liquid flow.

SUBSTANCE: proposed turbine has turbine case , stay ring with cascade of stay vanes, wicket-gate mechanism with cascade of adjustable vanes, operating element with cascade of flange-mounted blades and drive shaft coupled with electric generator step-up gear, operating element chamber, and draft tube. It is also provided with straightening mechanism that has cascade of vanes, chain transmission that has sprockets and shafts; external and internal rims are made in cross-sectional areas in the form of ovals. Cascade of blades is made in the form of caterpillar cascade. Operating element blades are cylindrical in shape and hinge-joined through chain transmission whose drive sprocket is coupled with drive shaft. Flanges of operating element blades are provided with supporting rollers mounted in fixed supports and joined with chain transmission shafts at distances of two adjacent operating-mechanism blades; guides are made in the form of oval junctions joined with turbine internal rim in vicinity of their abutting against butt-ends of flanges carrying operating element blades.

EFFECT: enhanced turbine efficiency.

1 cl, 4 dwg

FIELD: conversion of river stream energy into electric power.

SUBSTANCE: proposed plant has base in the form of catamaran that mounts current generators and their drive, current parameters stabilizing system, turbine capable of running in fully submerged condition, and its hoist. Turbine is made in the form of belt conveyer installed on edge at certain angle to river stream. Blades made of flexible material are secured throughout entire width and length of belt. Each blade is made in the form of bucket capable of folding and resting on belt during transfer from working to idle side of conveyer, and it has pocket on external surface for automatic raising of blade by river stream during transfer from idle to working position. Turbine hoist has rocker arm for turbine suspension hinged on one end to catamaran and on other end, to turbine frame that mounts generator-drive bevel gear so that longitudinal axes of hoist rocker-arm hinges and longitudinal axis of bevel-gear driven pinion are disposed on same line. In addition, hydroelectric power plant is equipped with device enabling variation of turbine angle of installation to water flow.

EFFECT: enhanced power capacity.

1 cl, 4 dwg

Wind power plant // 2298684

FIELD: wind power engineering.

SUBSTANCE: wind power plant comprises multi-row load-bearing structure provided with the group of vertical take-off shafts. Each of the shafts is kinematically connected with the group of primary wind power converters mounted in rows on the rotating devices near the vertical shaft. The take-off shafts are made of individual links interconnected through couplings and intermediate shaft set in the berating unit provided in the inter-row cross-piece. Each primary converter is made of endless chain mounted on two sprockets horizontally secured to the rotating devices in the bearing units of the shafts whose one end is connected with the vertical take-off shaft through a conical gear.

EFFECT: enhanced efficiency.

FIELD: engines and pumps.

SUBSTANCE: invention relates to hydropower and is designed to convert fluid medium power into electric power as well as to convert the power of air mass travel into electrical or mechanical power intended for rotation of various devices. The aforesaid device submerged in a fluid medium streamwise incorporates a continuous chain of flexible elements with working and idling runs enveloping the drive pulleys furnished with the vanes arranged perpendicular to flow direction. The power take-off shaft accommodates two spaced apart drive pulleys furnished with the contact elements engaged with the mating flexible elements, both being rigidly linked transverse con-rods. Ones of the said con-rods have a vertical axle fitted at their centers whereon rotary vanes are fitted arranged between the chains so that, during the working travel, they turn, being forced by the flow pressure, through 90° on both sides in the book manner and, during idling, they get folded. Others con-rods are furnished with a lengthwise brace rigidly linked thereto and arranged stremwise with vanes open and linked to the transverse con-rod with the axle with rotary vanes fitted thereon, the said transverse con-rod moving freely.

EFFECT: simpler design, higher reliability and longer life.

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FIELD: engines and pumps.

SUBSTANCE: invention relates to water-power engineering, particularly to power plants driven from a fluid flow energy, and can be used for transforming fluid flow power, e.g. that of river streams, into electrical power. The proposed power-generating set comprises a bearing carcass with an action turbine representing an endless conveyor set on its edge across the fluid flow and provided with two drums, enveloped by the upper and lower flexible pull elements between which the double-wing blades are fitted at an angle to the flow direction in operating conditions. Note that the conveyor has sliding supports interacting with the guides provided in the carcass upper and lower supports. The carcass accommodates electric generator linked up with one of the conveyor drums. The said sliding supports are attached to the conveyor flexible pull elements. Note also that the blades wings are articulated with the help of vertical axles. The free side edges of the aforesaid wings are furnished with additional sliding supports interacting with transverse guides rigidly coupled with the upper and lower pull elements. Note also that the said vertical axles are interconnected by flexible con-rods.

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FIELD: engines and pumps.

SUBSTANCE: invention relates to water-power engineering, particularly to power plants driven from a fluid flow energy, and can be used for transforming fluid flow power, e.g. that of river streams, into electrical power. The proposed power-generating set comprises a bearing carcass with an action turbine incorporating two vertical shafts running therein with their edges accommodating drive wheels interconnected by lower and upper flexible pull elements between which blades are arranged to foam a closed conveyor located across the fluid flow. The blades working surfaces are arranged at an angle to the flow direction. Note that the conveyor has sliding supports interacting with the guides provided in the carcass upper and lower supports. The carcass accommodates electric generator linked up with one of the conveyor shafts. The said blades represent vertical triangular prisms with their bases being isosceles triangles and the angle at the apex being oriented in one direction. The said sliding supports and every prism are rigidly coupled, by their bases, with appropriate upper and lower pull elements.

EFFECT: higher speed of conveyor and increase power output.

3 cl, 2 dwg

FIELD: engines and pumps.

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EFFECT: increased total working surface of blades affected by flow of flowing medium, reduced number of sliding joints and simplified design, which makes it possible to increase capacity of power unit.

2 dwg

FIELD: power engineering.

SUBSTANCE: invention is attributed to power engineering and can be used in wind electric generators. In the first version electric generator is performed with horizontal axis of rotation and contains blades turning rotor and blades turning stator in opposite direction. Stator is performed as separate teeth with winding without yoke, and rotor is performed as two coupled concentric bushings made of material with high magnetic conductivity and located on the outside and the inside of stator. Radially magnetised constant magnets of interleaving polarity are fixed on bushings. Polarity of adjacent magnets interleaves. Opposite to each other constant magnets are located that create concordantly directed magnet flows. On each tooth concentric winding isolated from body is located. Number of poles 2·p, number of pole pairs p, number of stator teeth z, number of coil groups in phase d, number of stator teeth b per one phase group, and number of phases m are connected by formulas: 2·p=d·(b·m±1), z=d·b·m, p/d=k, where: k=1, 1.5, 2, 2.5, 3, 3.5… - positive integer, or number differing from it by 0.5, thereat if k is integer, windings of coil groups in each phase are connected concordantly, and when k differs from integer by 0.5 windings of coil groups in each phase are opposing when m=2, 3, b=1,2,3,4,5…, and if (b·m±1) is even number then d=1, 2, 3, 4, 5…, if (b·m±1) is odd number then d=2, 4, 6, 8…. In the second version of electric generator rotation axis of rotor and stator is made vertical.

EFFECT: increase in specific power in regions with low speeds of wind.

20 cl, 4 dwg

FIELD: power engineering.

SUBSTANCE: river hydraulic unit brought into operation with river flow consists of a load-carrying frame with an action turbine made in the form of an endless conveyor located across the flow and having two shafts enveloped with a flexible towing element with blades installed with the possibility of being turned and fixed, and on the load-carrying frame there located is electric generator kinematically connected to one of shafts of endless conveyor. Hydraulic unit is equipped with an additional flexible towing element enveloping the shafts located along river flow, and with transverse supports connecting flexible towing elements to each other. Blades are installed on the axes fixed on transverse supports. Between endless conveyor's strings there installed is a river flow divider.

EFFECT: increase of total working surface of blades, on which the flowing medium acts, decrease of resistance to movement of blades and increase of power unit output.

2 dwg

FIELD: electricity.

SUBSTANCE: water flow energy converter into electrical energy consists of a body with open flow windows being provided in the lower part of the body during low-tide and in the upper part during high-tide. The converter also includes endless band inside the body, which is reeled on drums, operating blades in the form of double-lever plates. The operating blades are bent relative to each other and provided with hinge in the point of bending. They are installed on the external side of endless band along the whole its length. The stabilisers are installed on drum shafts outside the body boards. The said stabilisers pull down endless band with blades with regard to the body bottom to activate part of the blades in the upper part of endless band during high-tide. Alternatively, the stabilisers lift the endless band to activate part of the blades in the lower part of the endless band during low-tide. There are vertical slots made in the body to adjust height of lifting or pulling down. The movable gate is attached to the body end side and directs flow to the upper part of endless band during high-tide. The movable gate takes horizontal position to allow free flowing during low-tide.

EFFECT: improved effectiveness of device, simple structure and operation, wade range of application.

3 dwg

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