The method of conversion of the energy of the fluid flow and a device for its implementation
(57) Abstract:The inventive along the stream formed by the confuser, establish at least one convaincante Converter with oblique and axial flow areas. The flow close to the front of at least one steam blade, located on the axial flow area, and create in front of her props. 2 S. and 2 C. p. F.-ly, 4 Il. The invention relates to the field of hydro - and wind energy, in particular to methods of energy conversion of the fluid flow, for example the energy of the river flow, tidal currents and wind energy to produce electrical energy.There is a method of energy conversion of the fluid flow, consisting in the installation along the stream formed by the confuser, at least one conveyor-lobed Converter with oblique and axial flow areas, and the transducer is located on the pontoons and placed in the guiding channel.A device for implementing this method of energy conversion of the fluid flow contains the input confuser and the guide channel with the installed at least one conveyor-blade of Preobrazovatel the essential areas with a lifting height of sloping ground to the height of the blades, and the blades are installed perpendicular to the flow direction in the zone of interaction with the fluid flow (for example, U.S. patent N 1687923, CL F 03 B 4/00, publ. 1928).In this method using the claimed device, it is impossible to carry out the most comprehensive selection of energy from the fluid flow to convert it into electricity, as part of the flow guide channel has the ability to flow around the blades of the Converter in the zone of interaction with the fluid flow.The technical result of the claimed method of converting energy of a fluid medium, and device for its implementation is that most fully extracted energy from the whole flow of the fluid received in the input confuser.This technical result is achieved that the fluid flow generated by the input confuser, close to the front of at least one first conveyor blade-blade transducer with oblique and axial flow areas, and this blade is aligned with the flow of the plot and before it occurs afflux of the fluid flow, while the input confuse is between two adjacent blades, and the cross-sectional area of axial flow area of the guide channel, where the interaction of the fluid flow from the blades of the at least one conveyor-blade of the Converter is equal to the area of the blade or the total area of the blades, located at the entrance to the axial flow area of the guide channel. A device for converting energy of the fluid flow may contain a release position of the blades, located in the zone of interaction of the blades with the fluid flow, and the mounting of the blades in the transducer and the position lock is made in at least four places that allows the blades to maintain a position perpendicular to the direction of flow of the fluid and the blades to withstand heavy weight loads.In Fig. 1 shows a General view of the device for converting energy of the fluid flow from one conveyer-blade transducer of Fig. 2 is a view from the top of Fig. 3 General view of the device for converting energy of the fluid flow with two conveyer-blade converters, side view, and Fig. 4 of a kind on top of him.A device for converting energy of the fluid flow contains the input confuser 1 is Vomero spaced blades 3, with a Central axial flow section 4 and the inclined inlet and outlet sections 5 and 6, with a lifting height of sloping ground to the height of the blades 3 and the blades 3 are installed perpendicular to the propagation direction of flow of the fluid in the interaction zone with the fluid flow, while the confuser 1 and conduit 2 is closed, and the length of the coaxial stream site 4 is equal to the distance between two adjacent blades 3, and the cross-sectional area of axial flow section 4 of the guide channel 2 is equal to the square of the blade 3 or the total area of the blades 3, located at the entrance to the axial flow section 4 of the guide channel 2. In addition, the device for converting energy of the fluid flow may contain a release position of the blades (not shown) located in the zone of interaction of the blades with 3 streams of fluid, and the mounting of the blades 3 in the Converter and the position lock is made in at least four places. The input size of the confuser 1 is indicated on the figures by the letter S.The proposed method of converting energy of the fluid flow is to install along the stream formed by the confuser, at least one CCW edge of the first blade 3, located on the axial flow section 4 and pose in front of her props.A device for converting energy of the fluid flow is as follows.Formed relative to the coordinates associated locking (first coaxial stream site 4) blade 3 volume. This volume closes the front locking the blade 3 on the sides confuser 1, and the rear pressurized environment. Boundary dam is located between the perturbed and unperturbed by the Converter section of the stream, and the selection of energy occurs from the just closed the volume, the length of the confuser 1 leads to an increase in efficiency (coefficient of performance) of the Converter (the closer the area of the fence of the medium S to the area of the undisturbed flow, the less the flow environment and higher efficiency. And for efficiency, the accepted amount of energy captured from the shaft of the Converter, referred to the amount of energy of the unperturbed flow through the area of the fence environment S.Efficiency, calculated in the above manner, screw air units has a value of 3 to 6% and at rated speed.The wind turbines are characterized by the value of the utilization rate of flow (KIP) instead of efficiency, and this value is 46% that quality is t length confuser and is expected to exceed the value of 60%
The approximate formula for calculating the power (N wind turbines
N OF 0.3 SV3o,
where the specific gravity of the air flow;
S the area of the sampling environment;
V0unperturbed flow velocity.Approximate calculations (decrease) show that air Converter, constructed according to the claimed method, with an area of fence environment with dimensions 300 100 meters ( and a small value of S) at a wind speed of 10 meters per second, will have a capacity equal to 10 MW.When the device is in coaxial stream site 4 does not occur locking of the working fluid, proteinopathy with blades 3 and lost his energy and speed, because the length of the section 4 is equal to the distance between two adjacent blades 3, or the blade 3 when the output of the phase 4 can also be accessed from the lock position and be rejected, and increased the angle of rise of the output section 6 in comparison with the inlet pipe 5 is designed to ensure a smooth entrance of the blades 3 in the fluid flow and a fast exit. All the above provides the most complete extraction of energy from the fluid flow. 1. The method of conversion of energy flow Tierno-lobed Converter with oblique and axial flow areas, characterized in that the flow close to the front of at least one first blade is located coaxially on the flow of the plot, and create in front of her props.2. A device for converting energy of a fluid flow containing the input confuser and the guide channel with the installed at least one conveyor-bladed Converter with evenly spaced blades coaxially with the Central flow portion and a sloped inlet and outlet sections, with a lifting height of sloping ground to the height of the blades, and the blades are installed perpendicular to the flow direction in the zone of interaction with the fluid flow, characterized in that the confuser and the guide channel is made closed, and the length of the coaxial flow area equal to the distance between two adjacent blades, moreover, the cross-sectional area of axial flow area of the guide channel is equal to the area of the blade or the total area of the blades, located at the entrance to the axial flow area of the guide channel.3. The device according to p. 2, characterized in that it is provided with a lock position of the blades located in the zone of interaction of the blades with the fluid flow, and fastening trojstvo on PP. 2 and 3, characterized in that the angle of rise of the output plot more than the elevation of the inlet pipe.
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
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.
9 cl, 5 dwg
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.
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.
SUBSTANCE: invention is related to hydropower engineering, in particular, to power units actuated by flow of flowing medium, and may be used for transformation of flowing medium flow energy, for instance, of river flow, into electric energy. River hydraulic unit for utilisation of flowing medium flow comprises bearing frame with active turbine arranged in the form of infinite conveyor installed across flow of flowing medium and having two shafts embraced with flexible traction element with blades arranged at the angle to flow direction, sliding supports that interact with guides of bearing frame, on which electric generator is installed, being kinematically joined to one of infinite conveyor shafts. Hydraulic unit is equipped with additional flexible traction element embracing shafts installed along flow and transverse support elements that join together flexible traction elements. Sliding supports are installed on flexible traction elements. Blades are fixed on transverse support elements.
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.
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.
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.