Engine for energy recovery current environment
(57) Abstract:The invention is intended to convert the energy of the current environment in electric. Engine for energy recovery current environment contains a frame with bushing Windows installed in the frame with the possibility of rotation of the shafts, one of which is kinematically connected to a generator. Flexible element covers the said shaft and provided with blades mounted thereon can be rotated. On the inner longitudinal walls of the frame is made rails with the slots and the blades are provided with pins with rollers mounted in the said slots. The frame is placed across the flow of the current environment. The blades are mounted on a flexible element with the middle part and placed with overlapping megapath periods of one branch of the blades of the other branches and with the possibility of changing its position relative to the flexible element on the opposite curvilinear plot movement of the latter, for example by means of a protrusion that interacts with the end edge of the blades. This allows to eliminate idling speed of the blades and eliminate the useless flow in meglomania intervals, which ensures they to a device for utilization of the energy of the current environment, and can be used to convert the energy flow of the current environment, for example, the flow of rivers into electricity.A device for utilization of the energy of the current environment, see, for example, and. C. the USSR N 1020620, F 03 B 13/12 published 30.05.1983, the Known device comprises a frame with Windows installed with its opposite sides shafts, one of which is kinematically connected to an electric generator, a flexible element covering the said shaft and provided with blades. In the known device the blades are shaped and fixed to the flexible element, and the engine in working condition placed along the flow of the current environment, the current environment acts on the blade by moving the flexible element, which during its movement rotates the shafts, one of which is kinematically connected to an electric generator, converting energy into electrical energy flow.While the current environment affects both blades of the two branches, forcing them to move one branch and, at the same time providing resistance to movement of the second branch, i.e. has a great resistance to the back sides of the blades, when you return it to a working position, significantly reducing the resulting useful driving the environment, closest to the technical nature of the claimed (prototype), see and.with. The USSR 1694972, F 03 B 9/00 from 07.08.1989, Known engine includes a frame installed in the frame with its opposite sides by means of rotation of the shafts, one of which is kinematically connected to an electric generator, a flexible element covering the said shaft and provided with blades mounted thereon can be rotated, with the inner longitudinal walls of the frame are made rails with the slots and the blades are provided with pins with rollers mounted in the said slots.Known engine placed in working condition along the stream, on this stroke does only one branch, the second branch does idling, which reduces engine efficiency. In addition, despite the horizontal positioning of the blades at idle, the flow of the current environment affects their ends and back side when returning the blades in working position, creating a force opposing the operating course, which further reduces the efficiency of the engine. It should also be noted that to reduce the flow resistance to the movement of the blades when they are idle, the blades turn and lie on the flexible element, for which they shall ü flexible element in its working stroke, in places of fastening fingers and made the stops, which complicates the design, and reduces the reliability of the engine. Besides the mentioned fingers and stops placed at the base of the blades, so when exposed to flow at last, there is a considerable torque tending to rotate the blade relative to the stops, causing damage to the stops and the separation of the blades, which reduces the reliability of the engine.The objective of the invention is to provide a motor for energy recovery current environment, the location of which with respect to the direction of its flow and in which the execution of the mounting of the blades on the flexible element could be made so as to exclude them idling that would provide high reliability and high efficiency of the engine.This task is solved in that in the known engine, contains immersed in the fluid frame with bushing Windows installed in the frame with its opposite sides by means of rotation of the shafts, one of which is kinematically connected to an electric generator, a flexible element covering the said shaft and provided with blades mounted thereon can be rotated, with internal prodol mentioned grooves, according to the invention, the frame is placed a longitudinal side cross-stream current environment, through Windows are made on the longitudinal walls of the frame, and the curved sections of the movement of the flexible element mounted for engagement with the blade tool to change the position of the latter on the said flexible element on the opposite, the blades on the flexible element is mounted with the middle part and in working condition is set at an angle to the direction of flow and with the possibility of overlapping megapath periods of one branch of the blades of the other branches, and the frame is made of at least two pairs of guide pins with rollers attached to the lateral edges of the blades, and each roller pin mounted in each groove a separate guide appropriate pair.It is reasonable to at least one of the rails of each pair was mounted for movement through an additional mechanism, such as a screw, is placed on the frame.It is also expedient that the angle of inclination of the blades relative to the direction of flow was 20-50o.Convenient to the flexible element represented dstwo to change the position of the blades relative to the rope on the opposite.The invention is further illustrated by description of specific embodiments thereof and the drawings, where Fig. 1 schematically shows a General view of the proposed engine of Fig. 2 is a top view, in Fig. 3 - the number of engines in the river.Engine for utilization of the energy of the current environment includes a frame 1, in which the longitudinal walls are made through window 2. In frame 1 rotatably mounted shaft 3, one of which is connected through a chain drive 4 generator 5. These shafts 3 comprises a flexible element, in this example, the cable 6 of synthetic material. Rope 6 hinged blades 7. On the inner walls of the frame 1 is fixed guides 8, one pair on each side. On the side edges of the blades 7 is rigidly fixed to the pins 9 with the rollers 10. Mentioned rollers 10 each blade 7 is placed each in a separate guide 8, one of the pairs. To control the pitch angle of the blades 7, at least one of the guide 8 of each pair is arranged to move in any known way, in this example, it is provided at its ends with projections (not shown) included freely in the slots of the end rails (not shown) and moving akanno, at the optimal angle of 30-45. Work angle is 20-50 and depends on the angle of entry of the stream in through window 2, which in turn depends on the angle of the slope (rise) channel, and the speed of entry of the current environment. The blade 7 is placed on the cable 6 so that the gaps between the blades 7 one branch were blocked by the blades 7 other branches, in order to eliminate the useless flow through the mentioned periods, the total surface area of the blades 7 overlaps the area of the bore of the window 2 of the frame 1. When installing the engine in the riverbed of the required number and size of the engine is determined by required power of the electric generator 5, sizes and power flow. When installing multiple engines they are kinematically linked with the General PTO shaft 12 and the generator 5. The engines are attached to the uprights 13, installed in the riverbed.To ensure that the flow is always moved the blade 7 in the desired direction, the engine is provided with a means 14 for changing the position of the blade 7 relative to the cable 6 on the opposite, fixed on the area of the curvilinear movement of the cable 6 with the opportunity to interact with these blades 7. Specified the same position of the frame 1 of the engine is fixed under the water by means of the uprights 13. The blade 7 when this is set angle = 0oto the direction of flow of the current environment. Then gradually increase the pitch angle of the blades 7 to the stream at an angle of about 20-50. Why include a screw mechanism 11, the screw which simultaneously acts on the movable rails 8 each of the pairs, moving them along the end rails (not shown), the pins 9 with the rollers 10 are moved along the guide grooves 8, turning the blades 7. This gradual increase of the angle of inclination of the blades 7 to the direction of flow helps to avoid shock loads on the nodes of the device and the generator 5, which increases the reliability of the engine. The optimum angle depends on the velocity and angle of the rising channel. The optimum angle of 30-45o. Working - 20-50o. At an angle less than 20oreduced the impact of the flow on the blade 7, and hence the magnitude of the efficiency of the engine.When the angle is more than 50odramatically increases the resistance of the blades 7 of the flow, which reduces reliability. During rotation of the blades 7 to the desired angle , at last begins to influence the flow of flowing medium passing through the entrance window 2 of the frame 1. The blades 7 are starting to move and gibm chain transmission 4 is transmitted directly to the generator 5 or the common shaft 12 (Fig. 3) if you have multiple engines. When this energy flow is converted into electricity.The placement of the frame 1 with its longitudinal sides with a passing Windows 2 across the flow of the current environment and the installation of the blades 7 on the flexible cable 6 with the possibility of overlap megapath periods of one branch of the blades 7 to the other branch and installation on a curved section of the moving cable 6 means 14 for changing the position of the blade 7 relative to the rope on the opposite, made for example in the form of a protrusion that interacts with the end edge of the blades 7 allows you to use the whole driving force of the stream, without its useless breakthrough that increases the efficiency of the engine. The flow of the current environment, in this arrangement of the blades 7, acts simultaneously on the blades 7 of the two branches, moving them only in the desired direction, excluding the counter-flow movement of one of the branches, as in other known devices, the maximum thereby eliminating its idling, which significantly increases the efficiency of the engine.It should also be noted that the attachment of the pins 9 with the rollers 10 on the side edges of the blades 7, further enhance the rigidity of the latter, increasing reliably is nisit to minimize its deflection and lateral displacement, that also increases the reliability of the engine and its efficiency. 1. Engine for energy recovery current environment containing immersed in the last frame with bushing Windows installed in the frame with its opposite sides by means of rotation of the shafts, one of which is kinematically connected to an electric generator, a flexible element covering the said shaft and provided with blades mounted thereon can be rotated, with the inner longitudinal walls of the frame are made rails with the slots and the blades are provided with pins with rollers mounted in said grooves, characterized in that the frame is placed on its longitudinal side across the flow of the current environment, and through a window made in its longitudinal walls, on the area of the curvilinear movement of the flexible element mounted for engagement with the blade tool to change their position on the said flexible element on the opposite, with the blades on the flexible element is mounted with the middle part and in working condition is set at an angle to the direction of flow and with the possibility of overlapping megapath periods of one branch of the blades from another branch in Karkaa roller of each pin is placed in a separate guide appropriate pair.2. The engine under item 1, characterized in that at least one of the rails of each pair in a frame mounted for movement, and the engine is further provided with a mechanism for moving the specified guideline.3. The engine under item 1, characterized in that the flexible element is made in the form of a chain or rope.4. The engine under item 1, characterized in that the pitch angle of the blades to the direction of flow is 20-50°.5. The engine under item 2, wherein the mechanism for moving the longitudinal guides are made, for example, helical, longitudinal guides for your move installed on the end rails, made in the frame, connected with them sliding connection and rely on the mentioned screw screw mechanism.6. The device according to p. 3, characterized in that the means for changing the position of the blades relative to the cable is made, for example, in the form of a stop fixed on the wall of the frame or on the rail.
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