Engine for fluid utilisation

FIELD: engines and pumps.

SUBSTANCE: every load-bearing element 5 of engine for fluid power utilisation is arranged to reciprocate in guides 3 on one of openings 4 in carcass 2, along carcass lengthwise sides. Elements 6 for fluid to act on are made up of hydrodynamic profile wings, each being fitted on axle 7 of said element 5 to rotate on axle 7 for interaction with fluid flow. Means for carrying wing position is made up of wing turn limiters 8 arranged in symmetry on lengthwise side of carcass 3. Aforesaid elements 5 are coupled by articulated levers 10, 11 to shift elements 5 by amount selected from the condition that with element 5 staying in one of extreme positions, another element 5 coupled therewith stays in one of intermediate positions.

EFFECT: higher engine efficiency, reliability and simplified design.

 

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, F03B 13/12, publ. 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 is our actions moving the second branch, ie 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 force, thereby reducing the efficiency of the device.

Also known engine for energy recovery current environment, see A.S. USSR 1694972, F03B 9/00, publ. 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 when Ho is the East 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, it is not known

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 said grooves, according to the invention the frame is placed a longitudinal side cross-stream current environment, pass-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 lopa the authorities of another branch, 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 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 construction, 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 them idle element, intended for exposure to the current environment that would provide high reliability and high efficiency of the engine.

The technical result of the invention is to increase engine efficiency by eliminating idling item intended for exposure to the current environment, reliability, by eliminating the delay element at the "dead point" 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 Windows installed in the frame with the possibility of movement in the guides, made in boxes bearing elements with elements 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 hydraulic Converter efforts, according to the invention, each of the bearing elements is installed with the possibility of reciprocating movement along the guides in one of the Windows of the frame along its longitudinal sides, and items intended for exposure to the current environment, in the form of wings with hydrodynamic profile, each of which is 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 wing is made in the form of symmetrically installed on the longitudinal side of the frame rotation stops wings, and bearing elements are interconnected through a system of pivotally connected levers with the possibility of the ability to move the load-bearing elements by an amount chosen from the condition that when one of the elements of one of the end positions, the other, the associated bearing element must be in one of the intermediate positions.

The system pivotally connected levers may contain element mounted with the possibility of rectilinear reciprocating movement corresponding to the movement of the bearing elements.

The system of levers may contain an element representing a crank, which forms the other arm of the crank mechanism, the stroke of which corresponds to the movement of the bearing elements

Increased efficiency is achieved by utilizing the hydrodynamic force acting on the wings, 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 reduces the cost. In addition, when one wing is in one of the last neutral positions, the second wing is in the intermediate active position. As a result, the hydrodynamic force acting on a complex of two wings, can't disappear no matter what the position of these wings, and the extraction of energy from the current environment becomes fuller. PR is necessary, the engine can be performed with a large number of wings.

Engine for utilization of the energy of the current environment (figure 1) consists of the established on the Foundation 1 of frame 2, shipped longitudinal side cross-stream environment. In the guide window 4 frame mounted for movement of the bearing elements 3 elements 5, 6, intended for exposure to the current environment, in the form of wings hydrodynamic profile. Items 6 (wings) is fixed in the supporting elements 5 middle part. The elements 5, 6 are mounted on axes 7 of the bearing elements 3 can be rotated and interaction with the flow of the current environment. In working condition elements 6 installed at an angle α to the direction of flow. Means for changing the position of the wing is made in the form of symmetrically installed on the longitudinal sides of the window frame limiter 8 rotate the wings. In addition, the host element in the upper and lower parts can be performed limiters 9 motion of the wings 6.

The axle 7 is mounted in a bearing element 3, are rigidly connected to the wing and behind the point of application of hydrodynamic forces, so that due to the hydrodynamic moment of force about an axis is maintained at a constant angle.

Bearing elements 3 of two adjacent Windows are interconnected by a system pivotally connected levers 10, 11 (1), or 10, 11, 12, 13 (2), or 10, 11, 12, 13 (3), PE is Emesene bearing elements 3 in the guide window 4 by an amount chosen from the condition that when one of the elements 5, 6 in one of the end positions, the other, the associated bearing element is in one of the intermediate positions. In figures this is the average position of the other bearing element.

Figure 2 system pivotally connected levers contains the element 15 mounted with the possibility of rectilinear reciprocating movement corresponding to the movement of the bearing elements. This may be a cylinder installed inside the piston. In this case, the motor operates as a pump.

The lever system may contain an element representing a crank 16, which forms the other arm of the crank mechanism, the stroke of which corresponds to the movement of the bearing elements. In this case, the engine can operate as a generator.

Under the action of hydrodynamic forces the wings 5 and 6 together with the supporting member 3 move steadily each in its own window frame along the guide rails. Reaching the limiter 8, one of the wings falls into the "dead zone", but due to the above-described communication with the other wing, which at this time continues to move, and much easier getting out of this situation, changing the angle of attack on the opposite, then starts moving in the opposite direction. In General, each wing makes forward to buteline movement, with the wings in the process interact with each other, which increases the efficiency of the installation.

Removal of energy can be done in different ways: a hydraulic pump as shown in the drawings, 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 and reduces its cost.

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 is made from lightweight 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 Cy=2πsinγ, where 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 of the wing, α is 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/m - water specific gravity, 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 U=1 m/s, the area of S=1 m2vertical speed wing V=kU, the 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 multiplied by U2the 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.

1. Engine for energy recovery current environment containing submerged longitudinal side cross-stream environment mounted on the Foundation frame with Windows installed in the frame with the possibility of movement in the guides, made in boxes bearing elements with elements designed for exposure to the current environment, mounted in a bearing element of the middle part and the set is in working condition at an angle to the direction of flow, and means to change its position, and the device also includes a Converter hydraulic forces, characterized in that each of the bearing elements is installed with the possibility of reciprocating motion along the guide rails in one of the Windows of the frame along its longitudinal sides, and items intended for exposure to the current environment, in the form of wings with hydrodynamic profile, each of which is 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 wing is made in the form of symmetrically installed on the longitudinal side of the frame rotation stops wings, moreover, the bearing elements are interconnected by a system pivotally connected levers for movement of the bearing elements on the value chosen from the condition that when one of the elements in one of the end positions other associated bearing element must be in one of the intermediate positions.

2. The engine according to claim 1, characterized in that the system is pivotally connected levers contains an element that is installed with the possibility of rectilinear reciprocating movement corresponding to the movement of the bearing elements.

3. The engine according to claim 1, otlichayushiesya, the lever system includes an element representing a crank, which forms the other arm of the crank mechanism, the stroke of which corresponds to the movement of the bearing elements.



 

Same patents:

FIELD: power industry.

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2 cl, 2 dwg

FIELD: power industry.

SUBSTANCE: converter of kinetic flow energy of continuous medium to mechanical energy includes housing 1, movable frame 3 with set of turning aerodynamic plans 6, kinematic communication mechanism 7 between plans 6, limiters of angles of their rotation 4 and 5 and mechanical energy accumulators 8 and 9. In housing 1 there is additional frame 12 having freedom of linear movement between mechanical energy accumulators 8 and 9 and provided with non-rotating aerodynamic plans 13.

EFFECT: increasing the power generated with converter of oscillating type.

3 dwg

FIELD: power engineering.

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EFFECT: development of the efficient autonomous source of power supply at river shores without shores flooding.

3 cl, 4 dwg

FIELD: machine building.

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EFFECT: raised efficiency and expanded functionality.

2 cl, 10 dwg

FIELD: power industry.

SUBSTANCE: horizontal vane hydroelectric power station of underwater deployment includes vanes composing a unit at least of five vanes and current generator. Vanes are located in horizontal plane, their shape is neutral to the medium flow and they are equipped with assemblies with movable rigid or elastic vanes arranged on lower and upper surfaces of vane, which at impact of incoming flow of the medium are made so that they open in operating position, thus creating moment of force, or close when the vane enters the shadow zone of the flow. Units of vanes are installed so that they rotate to opposite sides through one unit and are arranged in tiers on support vertical axial pin or units of vanes are arranged apart from the main for example floating housing, and are connected to it by means of flexible shaft - cardan.

EFFECT: invention is aimed at universalisation of horizontal vane hydroelectric power station.

10 dwg

FIELD: power industry.

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EFFECT: simplification of hydraulic power station operation, facilitation of its maintenance.

4 cl, 5 dwg

FIELD: power engineering.

SUBSTANCE: invention relates to non-conventional power sources, and it can be used in plants using energy of wind, river, deep sea and other currents. Proposed plant contains one or several vertical shafts and horizontal rods with blades. Said hollow rods are installed on shafts for limited turning relative to their axes. Opposite blades of each rod are rigidly secured on rod square to each other and eccentrically relative to axis of rod. Shafts adjacent in horizontal direction are made for rotation in opposite directions.

EFFECT: provision of simple ecologically safe device operating at any direction of current in liquid and gaseous medium and at medium interface.

3 dwg

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