Alternative power source

FIELD: engines and pumps.

SUBSTANCE: invention relates to units designed to convert water flow energy into electric power. Proposed power source comprises generator 1 and hydrodynamic drive 2. Aforesaid birotary generator 1 includes housing 11 and two rotors 12 and 13. Aforesaid hydrodynamic drive 2 represents two coaxial screws 3 and 4 fitted on shafts 7 and 8 on both faces of generator 1. Power source incorporates rotation converter and two auger-type turbines 5 and 6 arranged concentric with housing 11. Screws 3 and 4 and auger-type turbines 5 and 6 are linked with inner and outer shafts 7 and 9, respectively, and, via rotation converter, with rotors 12 and 13 of generator 1.

EFFECT: higher efficiency, reduced sizes at increased power.

7 cl, 6 dwg

 

The invention relates to structures for converting the energy of the incoming flow of water into electrical energy.

Energy production, which is a necessary tool for the existence and development of mankind, has an impact on nature and human environment. On the one hand, in the life and productive activity of man so firmly joined heat and electricity that people even can not imagine their existence without it and consume for granted inexhaustible resources. On the other hand, people more and more attention focuses on the economic aspect of energy and requires clean-energy industries. This suggests the need to solve complex issues, including the reallocation of funds to cover the needs of humanity, the practical use in the national economy achievements, search and development of new alternative technologies for heat and power, etc.

Known hydropower plant at the request of the Russian Federation for invention №93029865 containing the two screws rotating in different directions, connected by shafts respectively with the rotor and stator of the generator. While the stator of the generator is rotated.

This is a big drawback, since the stator must be placed in a stationary CDF is truncated, designed for fastening to the support and output wires. In addition, the rotor, the stator and the screws rotate with the same angular velocity. If you design a high-speed generator having a rotational speed, for example, 3000...10000 rpm, to design a propeller with a diameter of more than 1 m will fail for reasons of strength, due to the large centrifugal loads.

For example, when n=10000 Rev/min and D=1 m/s,

The speed of rotation of the rotor at the periphery will be

i.e. almost 2 times the speed of sound in air and is comparable to the speed of propagation of sound in water and is not permissible under the terms of strength.

For industrial generators for maximum power, you must have the screws with a diameter of 5...10 m and more. In this case, the rotation speed of the screws should not exceed 50 rpm, i.e. you need to install the multiplier, increasing the frequency of rotation of the rotors 10...20 times. In addition, preferably the stator of the generator to perform non-rotating.

The task of the invention increase the efficiency of the plant while reducing its size and increase in power.

These tasks are achieved due to the fact that alternative energy source containing the generator and the hydraulic actuator, characterized in that the electric generator to perform the Yong birotational, comprising a housing, two rotors, a hydrodynamic drive, made in the form of two coaxially-arranged screws that are installed on the inner shafts and located at both ends of the generator and two screw turbines made concentric with the casing and connected to the outer shaft. The screws and screw turbines are connected respectively with the inner and outer shafts and through the conversion of rotation of the rotor of the generator. The conversion device may be made in the form of a differential planetary mechanism. The generator is placed in the frame with the hinge located in the vertical plane passing through the center of mass fixed on a stand and allowing rotation in horizontal and vertical planes. The hinge is made with limiter vertical rotation, preventing the screws from damaging the rack. The cavity of the generator is sealed and filled with lubricating fluid and communicates with the pressure compensator. The screws are designed with a variable pitch. Concentric with the screws may be mounted fairing.

The proposed solution has novelty, inventive step and industrial applicability, i.e. all criteria of the invention.

Novelty is confirmed by the results of the patent research, izopet the research level achievement of a new technical effect, increasing the efficiency of the plant in all modes of operation. Industrial applicability is due to the fact that the implementation of the invention requires known materials and technologies.

The invention is illustrated in the drawings, figure 1...6, where:

figure 1 is a diagram of an alternative energy source,

figure 2 illustrates the kind of And,

figure 3 - shows a variant of the alternative energy source with a casing,

figure 4 shows the diagram of a conversion device,

figure 5 shows a view B,

figure 6 shows the design of the conversion.

Alternative energy source (figure 1) contains the generator 1 and is attached to the hydraulic actuator 2, running on the energy of water.

Hydrodynamic drive 2 (figure 1) consists of two screws of the front 3 and rear 4 and two screw turbine front 5 and rear 6. The screws 3 and 4 are mounted on the inner shafts 7 and 8, and a screw turbine 5 and 6 respectively on the outer shafts 9 and 10. The generator 1 includes a housing 11, the inner and outer rotors, respectively 12 and 13, i.e. it is made birotational. The outer rotor 13 is connected with the front intermediate shaft 14 and the inner rotor 12 is connected with the intermediate shaft 15. All shafts are mounted in bearings 16. The bearings 16 are sealed from the environment TP is of 17. The front intermediate shaft 14 is connected with the inner and outer shafts 7 and 9 through the front conversion device rotation 18, and the rear inner and outer shafts 8 and 10 through the rear conversion of rotation 19. The excitation winding 20 is installed inside the housing 11, and the magnets 21 on the rotors 12 and 13. The application of this scheme will reduce the diametrical dimensions of the generator 1 and the screws 3 and 4, to increase their efficiency, to reduce the diameter of the installation is almost 1.5 times and reduce the level of noise generated by the screws 3 and 4. To the housing 11 of the generator 1 (Fig 1 and 2) in its middle part radially attached to a support 22, it is attached to the base 23 with the hinge 24 in the area of the center of gravity CG. The hinge 24 permits the rotation of the generator 1 in a horizontal plane and rotation by a small angle α in the vertical plane. The hinge 24 has a limiting vertical turning 25. The use of limiters vertical turning 25 prevents adjust to any misalignment of alternative source of energy vertically. The cavity of the generator "B" is filled with lubricating fluid and connected by a channel with pressure compensator 26. The pressure compensator 26 is designed to compensate for water pressure at great depths and compensation flow of lubricant through the seal. The pressurizer supports 26 in the cavity "B" pressure you the e, than the ambient pressure. From winding 20 allocated wire 27, which connect it to the connector 28 (Fig 1 and 2).

Screw turbine 6 can be connected to the external shaft 10 by means of the conical casing 29 (Fig 3 and 4). The design of the transmission of torque to the front screw turbine 5 has a similar structure.

The design of the rear conversion of rotation 19 is shown in figure 4, the design of the front device converting rotation 18 similar.

Conversion device rotation 19 includes a housing 30, with the rear intermediate shaft 15 is connected to the Central gear 31, concentric she has solar wheel 32, between satellites 33 connected with the planet carrier 34 by means of axles 35.

Concentric with the screws can be installed fairing 36 (6). During operation of the installation it is set in the area of permanent water flow. The water flow actuates the hydraulic actuator 2 (figure 1), i.e. the screws 3 and 4 and the screw turbine 5 and 6, through the shafts 7, 8, 9 and 10 result in rotational movement of the rotors 12 and 13 of the generator 1. The magnetic field crosses the winding 20 and occurs EDS. The produced electric energy is supplied through electric wires 27 to the electrical connector 28 and on to energy consumers (figure 1...6 electrical consumers n is shown).

The fairing 36 prevents radial flow of water under the action of centrifugal forces and increases the efficiency of the installation.

The use of the invention will:

1. To ensure high efficiency through the use of two screws, two screw turbines and use of cover.

2. To get more power through the use of screws maximum possible diameter in order that through them passed the maximum consumption of water, use the maximum angular velocity of rotation of the screws from the condition of strength, use a screw turbine, having a large active surface and allows you to get extra power generator without increasing its diametral and axial dimensions and weight.

3. To reduce the diametrical dimensions of the generator through the use of birotational schema and conversion of the rotation.

4. Agree on the optimal speed of the generator, screws and screw turbine devices transformations on both sides of the device.

5. To reduce the level of noise generated by the screws through the use of the fairing.

6. To ensure the unit is mounted on the bottom of the ocean at any depth up to 10000 m through the use of a pressurizer thermal expansion.

1. Alternative energy source containing the generator is hydrodynamic drive, when this generator is made birotational and includes case and two rotors, and a hydrodynamic drive is made in the form of two coaxial spaced screws that are installed on the shafts at both ends of the generator, characterized in that the energy source provided with a device for converting rotation and two screw turbines located concentric with the housing, the screws and screw turbines are connected respectively with the inner and outer shafts and through the conversion of rotation of the rotor of the generator.

2. The energy source according to claim 1, wherein the conversion device is made in the form of a differential planetary mechanism.

3. The energy source according to claim 1, characterized in that the generator is placed in the frame with the hinge located in the vertical plane passing through the center of mass fixed on a stand and allowing rotation in horizontal and vertical planes.

4. The energy source according to claim 3, characterized in that the hinge is made with limiter vertical rotation, preventing the screws from damaging the rack.

5. The energy source according to any one of claims 1 to 4, characterized in that the cavity of the generator is sealed and filled with lubricating fluid and is in communication with the pressure compensator.

6. Source energy is the GII according to any one of claims 1 to 4, characterized in that the screws are designed with a variable pitch.

7. The energy source according to any one of claims 1 to 4, characterized in that the concentric screws installed the fairing.



 

Same patents:

FIELD: mechanical engineering.

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FIELD: mechanical engineering.

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EFFECT: invention is directed to increasing of coefficient of efficiency of installation ensured by increasing of back screw coefficient of efficiency.

3 dwg

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