Motor used for utilising fluid medium energy

FIELD: water-power engineering.

SUBSTANCE: invention refers to water-power engineering, and namely to fluid medium energy utilising devices, and can be used for energy conversion of fluid medium flow, e.g. river flow, into electric one, whereby momentum energy of flows is converted into translation-and-vibration movement. Fluid medium energy utilising motor consists of a frame with a window, which is submerged with its longitudinal side across the medium flow and is fixed on foundation. Load-carrying member with working member is installed in the frame so that it can move. Working member is intended for being effected by fluid medium. It is fixed with its central part in the load-carrying member, and when in operation, it is installed angle-wise to the flow direction. Motor comprises a working member position changing device as well as hydraulic force transformer. Load-carrying member is installed so that it can move in a back-and-forth manner in the frame window along its longitudinal sides. Working member made in the form of a wing with a hydrofoil profile is installed on the load-carrying member axis so that it can turn about the axis and interact with fluid medium flow. Blade position changing device is made in the form of the blade turning stops symmetrically installed on the frame longitudinal side. Hydraulic force transformer is kinematically connected with load-carrying member.

EFFECT: invention allows increasing motor efficiency and simplifying motor design.

2 dwg

 

The invention relates to hydropower, in particular 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, such as the flow of rivers, in electric, which converts the kinetic energy of the currents in the translational-vibrational movement. Can be considered the size of the river, the nature of its currents. Use may occur at any time of the year.

A device for utilization of the energy of the current environment, see, for example, as the USSR №1020620, F03 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 the eye is they the displacement resistance of the second branch, ie has a great resistance to the back sides of the blades upon their return to its working position, significantly reducing the resulting useful driving force, thereby reducing the efficiency of the device.

Also known engine for energy recovery current environment, see A.S. USSR 1694972, F03 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, so stroke makes 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 at their Holos is Ohm course, the blades turn and lie on the flexible element, for which they are rotatable mounted on the latter only its bottom edge, and that they were not displaced by the flow and not deep, responsible way to flexible element in its working stroke, the clamping 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.

In shipbuilding, aviation, automotive and many other industries, technology is used hydrodynamic lifting force produced by the motion of bodies or wrap motionless fluid flow. To create a lifting force applied to the body, called wings. In shipbuilding wings used for blades propellers propellers propellers, rudders, hydrofoils, etc. In certain circumstances, for example when driving in circulation, and the usual case of a vessel may be considered as the wing, which creates a hydrodynamic lifting force. To promote the development of a hydrodynamic lifting force, the wings give a special form, which is flanged at the same time favors the reduction of the resistance to their movement. Thus the performance of the element that affects the flow of the current of water for energy recovery current environment, is unknown.

Closest to the claimed invention is an engine containing immersed in the current environment 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 shafts and provided with elements - blades, intended for exposure to the current environment, 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, the frame is placed a longitudinal side cross-stream current environment, through window performed 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 branch, p is item the frame is made of at least two pairs of rails, pins with rollers attached to the lateral edges of the blades, and each roller pin mounted in each groove a separate guide corresponding pair (patent RU №2166664, MPK7 F03B 9/00, F03D 5/02).

However, this device also has a low efficiency, since the force acting on such traction blades, is proportional to the relative speed, which is much lower than the rate of flow of the current environment, while the blades are in the working position only on one of the branches of the traction element. In addition, the device has a complicated mechanical design, as it is necessary to change the position of the blades at idle and on curved sections flexible element, which reduces the reliability of the unit.

The objective of the invention is to provide a motor for energy recovery current environment simple design, which would have been most excluded idling speed of the blade, which would provide high reliability and high efficiency of the engine.

The technical result of the invention is to increase engine efficiency, simplifying its design.

This technical result is achieved by the fact that in the drive for energy recovery current environment containing submerged longitudinal side cross-stream environment, mounted on the Foundation frame with a window mounted in the frame with the possibility of movement are the s element element, intended for exposure to the current environment, mounted in a bearing element of the middle part and in working condition set at an angle to the direction of flow, and means for changing its position, and the device also includes a hydraulic Converter efforts, according to the invention, the carrier is installed with the possibility of reciprocating movement in the window frame along its longitudinal sides, and the element intended for exposure to the current environment, made in the form of a wing with a hydrodynamic profile and installed on the axis of the bearing member can be rotated on the axis of and interaction with the flow of the current environment, the means for changing the position the blades are made in the form of symmetrically installed on the longitudinal side of the frame limiting rotation of the blades, and the Converter hydraulic forces kinematically connected with the bearing element.

Increased efficiency is achieved through the use of hydrodynamic forces acting on a wing having a hydrodynamic profile. It is known that this force is proportional to the square of the relative velocity, which, in contrast to the traction blades, more water velocity.

The reliability of the engine is ensured by its simplicity, which also reduces the cost.

The engine for the disposal of EN is rgii current environment (figure 1) consists of a set on a concrete base 1 of a rectangular frame 2, shipped longitudinal side cross-stream environment. The window frame is mounted for movement of the bearing element 3 element 4 designed for exposure to the current environment, mounted in a bearing element 3 middle part. Element 4 is designed as a wing with a hydrodynamic profile and installed on the axis 5 of the bearing member 3 can be rotated on the axis 5 and the interaction with the flow of the current environment. Operable element 4 is installed at an angle α the direction of flow. Means for changing the position of the wing is made in the form of symmetrically installed on the longitudinal side of the frame limiting rotation of the blades 7 and the inverter hydraulic forces 9 kinematically connected by means of rod 8 with the bearing element 3. In addition, the host element in the upper and lower parts can be made limiting movement 6, through which is regulated by the angle α. Angle α is selected from the condition of maximum power of the device. Here the angle α=60°. At the same position angle due to the flow results in a vertical force which pushes the wing together with the sliders one way; in another position angle of the wing will move in the opposite direction. Axis 5 is mounted in a bearing element 3, are rigidly connected to the wing and behind the point of application hydro is dinamicheskoi force, so constant angle is maintained at the expense of the hydrodynamic moment of force about an axis.

Figure 2 also depicts the inventive engine.

Under the action of hydrodynamic forces wing 4 together with the bearing element 3 moves progressively in the window frame. Reaching the stopper 7, the wing changes the angle on the opposite, then starts moving in the opposite direction. In General, the wing performs translational-vibrational movement.

Removal of energy can be done in different ways: a hydraulic pump as shown in the drawing, a linear electric generator, mechanical drive and other

If necessary, the wing can perform translational-vibrational movement horizontally or vertically. Ease of fabrication increases the reliability of the design of the engine and reduces its cost.

At the same position angle due to the flow results in a vertical force which pushes the wing together with the supporting member in one direction; at a different position angle of the wing will move in the opposite direction.

When reaching the limiter 7 on a frame of the wing changes the angle on the opposite and starts to move in the opposite direction. Changing the angle of the wing is made due to the hydrodynamic forces and moment of inertial force of the slider.

Pivotally connected to the axle 5 of the rigid rod 8, Kotor, which can be connected to the hydraulic pump 9, a linear electric generator or connecting rod-crank mechanism that transforms the work of hydrodynamic forces into useful work.

The wing area can be changed by lengthening or increasing the chord. The limits of the length of the chord of the wing is determined by the configuration of the rivers. The wing should be made of light materials or partially hollow to compensate for gravity and hydrostatic force (Archimedes force). The wing does not require careful profiling. The profile of the wing must be symmetric, then the hydrodynamic forces little will be different from the plate with lift coefficient Withy=2πsinγwhere γ is the angle between the chord and the speed of flow, and the force is directed perpendicular to the flow velocity. If U is the water velocity in the river, V - vertical speed wing α - the angle between the wing chord and the velocity vector of the water flow, the vertical force is determined by the formula

where f=1000 kg/m3- the specific weight of water; g=9.81 m/s2k=V/U.

The power of the power unit is equal to

From (2) that maximum power is obtained at

Let the water velocity (V=1 m/s, the area of S=1 m2vertical speed wing V=kU, angle α =60°then kmax=0.866, the vertical force Y≈139 kg, power N≈120 KGM/s, or N≈1.6 PS or N≈1.2 kW.

At the arbitrary rate of flow of water must force Y to be multiplied by V2the power N in U3and if the wing area is also arbitrary, it is additionally necessary to multiply by S. Formulas (1)to(3) must be used to calculate the hydropower plant in relation to the specific conditions of the river.

This eliminates the need for dam construction dams and other structures used to accumulate the energy of the river and difference, and height in traditional devices.

Engine for energy recovery current environment containing submerged longitudinal side cross-stream environment, mounted on the Foundation frame with a window mounted in the frame with the possibility of movement of the bearing element with the element, designed for exposure to the current environment, mounted in a bearing element of the middle part and in working condition set at an angle to the direction of flow, and means for changing its position, and the device also includes a Converter hydraulic forces, characterized in that the bearing element is installed with the possibility of reciprocating movement in the window frame along its longitudinal sides, and cell battery (included) is t, designed for exposure to the current environment, made in the form of a wing with a hydrodynamic profile and installed on the axis of the bearing member can be rotated on the axis of and interaction with the flow of the current environment, the means for changing the position of the blades are made in the form of symmetrically installed on the longitudinal side of the frame limiting rotation of the blades, and the Converter hydraulic forces kinematically connected with the bearing element.



 

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Water-power plant // 2309289

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FIELD: power engineering.

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FIELD: hydraulic power engineering.

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5 cl, 5 dwg

Water-power plant // 2309289

FIELD: generation of electric energy by conversion of water flow.

SUBSTANCE: electric energy is generated with the aid of vane-type machine having at least one rotor, rotor-driven generator and float for vane-type machine; vane-type machine is anchored stationary and rotor is oriented in direction of water flow. Vane-type machine is held in suspended state below water surface. Float may be inflated with compressed air and may be filled with water when required. Rotor is mounted on axle oriented in way of water flow. Rotor blades may be turned with the aid of mechanism in direction of water flow or in opposite direction. Rotor axle is just hollow axle forming the float. Vane-type machine is invisible during operation of plant.

EFFECT: simplified construction; reduction of time required for mounting.

22 cl, 11 dwg

FIELD: wind and hydraulic power engineering.

SUBSTANCE: invention relates to wind and hydraulic motors with vertical shaft of rotation. Proposed vertical shaft turbine has shaft hinge-mounted on post with rigidly and normally attached supports, and blades arranged between supports and installed on axle for turning being limited by two locks. Supports are installed in two directions to form row. Blades are made of closed elastic material tightly enclosing thickened axle to prevent axial displacement and vertical rigid edge spring-loaded relative to axle. Moreover, each blade is provided with stops fixing elastic material relative to thickened axle. Turbine can be furnished with additional rows of supports with blades installed higher and/or lower than first row. Turbine can reliable operate irrespective of velocity and gusts of wind, region and place of mounting, including movable objects, with provision of efficiency 10-16% higher than that of similar constructions.

EFFECT: simple design, effective operation.

3 cl, 2 dwg

FIELD: electricity.

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EFFECT: increased operation reliability; power regulation.

6 cl, 1 dwg

FIELD: electricity.

SUBSTANCE: invention is related to the field of renewable energy sources, namely, wind energy conversion into electric energy. Converter contains frame and first and second blades that are kinematically connected with cord (chain), first and second drums (starts) that are motionlessly installed in the shafts of the first and second gears, which interact with the first and second gears via corresponding overrunning clutches, third gear and conical pair of gears with step-up gear and generator, fourth and fifth gears that interact with the third gear and third and fourth blades that are kinematically joined with cord (chain) and third and fourth drums (stars), which interact with fourth and fifth gears via corresponding overrunning clutches. Converter is made of two parts that are symmetrical in respect to outlet shaft of fifth gear, in which drive gear of conical pair is motionlessly installed. The second option of energy converter consists of two parallel adjacent pipes, in the middle of which leak-tight chamber is installed, and blades are installed inside pipes.

EFFECT: increase of efficiency factor and reduction of fluid medium energy conversion net cost.

9 cl, 8 dwg

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