Method to produce wind energy and convert it into other types of energy and wind-energy device for its realisation
FIELD: power engineering.
SUBSTANCE: invention relates to wind power engineering and may be used to produce wind energy and convert it into electrical, mechanical, thermal energy or their different combinations. Air flow is captured from wind and accelerated in a narrowing channel, and is supplied into a device with a water jet by a pump, where water and air flow is produced. The water-air flow is accelerated to supersonic speed, and is then turned into subsonic water-air flow of the fuel. Energy is extracted from the specified subsonic flow in the turbine, and then the flow arrives into the receiving reservoir, where water and air are separated. The residual pneumatic energy of the separated compressed air is additionally converted into electrical or mechanical energy. The residual thermal energy of compressed air and water is used accordingly for air and water heating or hot water supply.
EFFECT: usage of the invention makes it possible to exclude a blade wind turbine, to reduce weight and dimensions of a device, to increase reliability and to ensure uninterrupted power supply to loads with various types of energies.
9 cl, 1 dwg
The invention relates to wind energy and can be used to produce unconventional clean and renewable wind energy and convert it into other forms of energy: electrical, mechanical, thermal, or their various combinations.
In the known methods of obtaining and using wind energy wind turbine as a rule, represents an integrated set of process equipment that includes, on the one hand, wind turbine blade aerodynamic type, perceiving the kinetic energy of the wind flow, on the other hand, the additional devices or device that converts wind energy into other forms of energy, which creates a number of serious shortcomings and limitations in operation.
For example, serious difficulties for the operation of the known wind turbines arise due to the limited dynamic range of wind speeds due to their significant non-uniformity in time. The lower and upper bounds of the dynamic range determines the minimum speed Vmin, which corresponds to the time of driving off the motionless propeller installation, and the maximum wind speed Vmaxwhere operation of the wind turbines must be stopped in order to prevent its destruction. Inside dynamic�th range is nominal wind speed V nthat provides the user with a calculated amount of energy. Taking the estimated annual average wind speed V0, it is possible to determine the speed VnVminand Vmaxby corresponding to the simple formula: Vn=K1·V0; Vmin=K2·V0; Vmax=K3·V0. Here K1, K2, K3defined empirically correction factors that depend on a number of factors, such as the topographic conditions of the terrain, height of the turbine above ground level, the design features of equipment and, in particular, the working body, and other factors. The estimated values of these coefficients lie within the following limits: K1=1,4÷2,0; K2=0,6÷0,8; K3=4÷5. For example, for calculation of average speed V0equal to 5 m/s, rated wind speed Vnwill be in the range of from 6 to 10 m/s, and the minimum and maximum speeds will be equal respectively to Vmin=3÷4 m/s and Vmax=20-25 m/s (see e.g. the book: Resources and the efficient use of renewable energy sources in Russia. Under the General editorship of L. P. Bezrukikh. - St. Petersburg, Nauka, 2002, ISBN 5-02-024971-8).
The limited dynamic range of wind speeds also significantly affects the conditions reliable�and uninterrupted power supply. So, at low wind speeds there is a deficiency of energy, which should be compensated by the energy produced by the backup power source, such as a diesel power plant or energy accumulated various kinds of batteries in the period of maximum wind speeds, when the wind turbine produces excess energy.
Are also systems that use various renewable sources in combination. Thus, the known from the patent DE 3407881 A1 integrated energy supply system, in which in addition to generating electrical energy from solar panels is extracted mechanical energy of the moving air flow through the propeller and turning it into electrical energy driven generator. The airflow occurs through the merger of the horizontal and rejected in the vertical direction of wind flow in the gap between the outer wall of the building and spaced from it by the solar radiation absorbers of heat from the plates of the absorber.
Also, according to the patent DE 2751341 A1 can be combined with all possible natural energy sources, and for the exploitation of wind energy only mentioned wind turbine.
Patent US 4079264 A describes a wind turbine, which is located at the narrowest point of the flow of air in to�Nala Venturi at the point of highest speed and low pressure. The impeller is located mainly in the field of low pressure to create the flow to the impeller of the turbine in a different location.
Such combined energy supply systems are characterized by a significant weight and size indicators, occupied large industrial areas, high construction and operating cost, low efficiency in the range of 5-30% and the high costs of energy.
Finally, the limited dynamic range of wind speeds preclude the use in the whole volume of the energy potential of wind energy, negatively affecting the value of the coefficient of energy conversion (KPI). So, it is known that the existing petrushansky can use only 20-30% of the available wind resources (see, for example, a book: A. N. Starks, etc. wind Atlas of Russia. The Ministry Of Energy Of Russia. - M., 2000, ISBN 5-7542-0067-6).
Thus, known methods for receiving and converting wind energy with the above-mentioned significant disadvantages, do not meet the requirements to be met by modern energy process.
From applied aerohydromechanics a method of producing and converting energy of the air flow ejected pressurized water flow through phase transformations, of course� the purpose of which is the formation of two-phase (water + air) environment. Last at a certain quantitative ratio of the phases and the local velocity is accelerated to supersonic speed in specially profiled channels. This movement occurs with the shocks, accompanied by an abrupt increase in the pressure and temperature of the fluid, which then turns into a subsonic flow (see e.g. the book: E. Y. Sokolov, N. M. Singer. Jet devices. - 3-e Izd., Perera - M., Energoatomizdat, 1989, ISBN 5-283-00079-6).
Based on the above considerations, as a prototype of the selected technical solution, which describes a method of converting into the compressed air of atmospheric air in the process of ejection of the pressurized flow of water (see e.g. the book: B. F. Lamai. Water-jet pumps and installation. L.: Engineering. Of Leningrad. Office, 1988, pp. 232-237, ISBN 5-217-00278-6).
From this same source it is known a device for implementing this method, comprising a pump, a water-jet device, made with the possibility of ejection of atmospheric air tank receiver for separating water from compressed air, suction and discharge piping, and control valves.
The main disadvantage of the known method and device for its implementation is a limited application only in still air and the inability to obtain and the number of�tion energy speed of wind flows, as varieties of air flow, with high rates of energy conversion (KPI) while also ensuring high efficiency of the device.
The aim of the present invention is to increase KPIs at the expense of obtaining and wind energy conversion over a wide dynamic range from abnormally small, near zero speeds, up to extremely high for the area speeds, further increasing the efficiency of the device by refraining from the use of inefficient wind turbine blade, reduce the weight and performance of the device and its occupied production area, increase reliability, uninterrupted power supply of consumers different types of energy.
This goal is achieved using the combination of features of the main claims and the dependent claims representing the preferred Supplement. The invention is explained followed by a description of the method of utilization of wind energy on the example of the attached drawing, showing the outline of the device.
Fig.1 shows a variant of the wind power device for implementing the method of obtaining wind energy and convert it into other forms of energy (electrical, mechanical, thermal, or their different combinations), which includes hydraulic installation 1, asteasu� from the pump unit 2, composed of dynamic vane pump, preferably a centrifugal pump 3 and the actuator 4, tank-receiver 5, comprising a housing 6, a bottom 7 and the cover 8 together forming an internal cavity: the lower hydraulic 9 and upper 10 pneumatic cavity, and a water-jet device 11 containing the working chamber 12, a Central tapered nozzle 13, the mixing chamber 14 and the diffuser 15.
Hydraulic unit 1 is additionally equipped with metropilitan 16, containing sequentially arranged on the movement of the air flow petroselinic 17, a housing 18 with an air channel 19 and the outlet 20 with a check valve 21, a hydraulic energy Converter 22 with a hydraulic turbine 23, a shaft 24 which is made with the possibility of connection to an electric generator with 25 or other mechanical load 26, a pneumatic energy Converter 27 with pneumatic turbine 28, the PTO shaft 29 which, in turn, made with the possibility of connection with the electric generator 30 or other mechanical load 31.
The outlet 20 of microsilica 16 radially or tangentially attached to the jetting apparatus 11 in its cross-section. The output 32 of the hydraulic turbine 23 short pipe 33 equipped with a regulating device 34 and clicks�entirely the valve 35, connected to the tank receiver 5 through the bottom 7, and the entrance 36 to the pneumatic turbine 28 via a three-way valve 37 with the release 38 is connected to the atmosphere by a duct 39 to the tank receiver 5 through the cover 8. The pump 3 is connected with the suction conduit 40, equipped with a regulating device 41 and check valve 42, with tank-receiver 5, and the discharge conduit 43 with other regulating device 41 is connected to the jetting apparatus 11.
In the inlet pipe 40 is mounted boiler 44, which is placed inside the heat exchanger 45, for example a coil in communication with the straight pipes 46 and 47 return flow of the coolant - water system of water heating and/or another heat exchanger 48 in communication with the supply pipes to the cold water 49, and the discharge of hot water 50 hot water system.
The output from air turbine 28 is connected to the distribution unit 51 air heating systems.
Microsilica 16 wind power generating apparatus installed in a number n≥1 into the wind, and their rectilinear longitudinal or curved axis 52 can be located relative to the longitudinal axis 53 of the water-jet apparatus 11 at the angle β satisfying the condition of 180°≥β≥0°. The drawing shows a variant of the wind power unit with one (n=1) Petroselinum 16, the longitudinal axis 52 which is under direct�the second angle (β=90°) to the longitudinal axis 53 of the water-jet apparatus 11.
The air channel of each microsilica in the course of the air flow is made convergent if the following geometric conditions: F1=(10÷100)F2; 24°≥α≥8°, where F1, F2and α are the input area, respectively, (1-1) and output (2-2) cross sections and the angle of confusingly air channel.
The housing 18 may be made of a waterproof and airtight material. The cross section can be made of any, but mostly round shape.
In the hydraulic chamber 9 tank-receiver 5 with the possibility of maximizing the interface of mediums water - compressed air is installed inclined partition wall 54.
For regulation of flow and pressure and to prevent reverse movement of the fluid provided control valves 34 and 41 and the check valves 35 and 42. The control and measurement of performance of a wind power device is carried out through the following instrumentation: pressure gauges 55, the flow meter 56, the heat meter 57 and 58 thermometers installed according to the accepted Rules of installation and operation of these devices.
At the entrance to petroselinic 17 equipped with safety screen 59 to protect from falling debris and foreign objects.
A method of producing wind energy and convert it into other types of energy�and (electrical, mechanical, thermal, or their different combinations) is that the air flow is forced to accelerate in verosimile 16, and then in the mixing chamber 14 of the jetting apparatus 11 accelerated airflow is mixed with the feed pump 3 accelerated pressurized water flow, thereby intensifying the process of formation of a supersonic air-flow, the movement of which comes with the shocks, accompanied by an abrupt increase of pressure and temperature. After the diffuser 15 converts the two-phase flow at the outlet of the water-jet apparatus 11 in subsonic pressure air / water flow with excess hydraulic energy and thermal energy. Most of excess hydraulic energy of the pressurized air / water flow of energy through a hydraulic energy Converter 22 is converted into electrical energy by attaching to the PTO shaft 24 of the hydraulic turbine electric generator 23 25, or in other forms of energy, adding to the PTO shaft 24 a different mechanical load 26. After the hydraulic energy Converter 22 of the pressurized air / water flow of energy from residual hydraulic thermal energy is subjected to separation in the tank receiver 5, separating the compressed air, which accum�lyout in the air cavity 10, from water, which is collected in the hydraulic chamber 9. The residual energy of compressed air through pneumatic Converter 27 extra energy is converted into electrical energy by attaching to the PTO shaft 29 of the pneumatic turbine 28 electric generator 30, or mechanical energy, by attaching to the same shaft PTO 29 other mechanical load 31.
Hot compressed air as the coolant is directed after exiting the pneumatic turbine 28 to the distribution unit 51 air heating systems. Hot water as the coolant in the suction pipe 40 is directed into the boiler 44. In the last place the heat exchanger 45 in communication with the straight pipes 46 and 47 return hot water as those used by the circulation of the coolant in a hot water heating system, and/or place another heat exchanger 48 in communication with the supply pipes to the cold water 49, and the discharge of hot water 50 through which carry out the operation of hot water system.
The forced acceleration of the air flow perform a dynamic range of 1:100, equal to the ratio of the minimum to the maximum wind velocity in the inlet section (1-1).
The pressurized water flow to the water-jet apparatus 11 create using a pump unit 2, carrying�, the power supply is in a starting mode from the electric storage device power or from an independent power source or from the network, and in an operating mode using a portion of electricity generated, and the drive is assembled with a device for controlling the number of revolutions in ensuring optimal operating characteristics of the pump unit in the conditions of non-uniformity of the wind speed by changing the number of revolutions, by decreasing or increasing the number of revolutions of the drive accordingly when reducing or increasing wind speed.
Wind power generating device operates as follows. With the inclusion of the work of the pump unit 2: water pressure pipe 43 is fed into a Central tapered nozzle 13 water-jet apparatus 11. At the exit of the nozzle 13, the jet velocity increases and the pressure drops. This creates a vacuum in the working chamber 12, where the water stream is accelerated airflow generated from the wind flow. Last through petroselinic 17 microsilica 16 enters the housing 18 with an air duct 19 of the convergent shape, the area of F1the entrance of which is larger than the area of F2output. As a result of such constructive execution of the converging channel 19 will take place the following aerodynamic terms: P1>R2; V1<V2;
Thus, in accordance with the above hydrodynamic conditions in the working chamber 12 is optimal for the ejection of the accelerated air flow is also accelerated water stream. Next, in the mixing chamber 14, the intensive mixing of water with air. This results in a water-and-air mixture, the speed of sound which is much below the speed of sound in single-phase water flow. Consequently, at the entrance to the diffuser 15, the movement of a supersonic air-stream, the more accelerated the velocity of sound will occur with shocks, which at the same time, irregular pressure and temperature. As you progress in the diffuser 15, the cross sectional area of which increases from the input to the output section, a supersonic flow at the exit of the diffuser 15 is transformed into the subsonic pressure air / water stream energy with excess hydraulic energy defined by the sum of potential and kinetic energy, as well as from�tochnoi thermal energy, whereby the temperature of the pressurized air / water flow of energy depending on the pressure reaches 80-120°C at a heating temperature of about 0.5-2°C per minute.
After the water-jet apparatus 11 subsonic pressure air / water flow energy flows into hydraulic energy Converter 22, where a PTO shaft 24 of the hydraulic turbine 23 drives the electric generator 25 for generating electrical energy and/or other working mechanism 26 for the production of mechanical energy. At this stage use a large part of the hydraulic energy of the pressurized air / water flow energy. After the hydraulic energy Converter 22 of the pressurized air / water flow of energy carrier with significant residual thermal and hydraulic energy by a short conduit 33 enters the tank receiver 5. Here the compressed air separates from the water and accumulates in the upper pneumatic cavity 10, and water is collected in the lower hydraulic chamber 9. Compressed air as it accumulates and achieve the design pressure via a three-way valve 37 and conduit 39 is supplied to pneumatic energy Converter 27, wherein the PTO shaft 29 of the pneumatic turbine 28 drives the electric generator 30 and/or another p�operating mechanism 31 for additional production of electricity and/or other energy.
thermal energy of the pressurized air / water flow after hydraulic energy Converter energy in the tank receiver 5 is conventionally divided into thermal energy of water in the hydraulic chamber 9 and thermal energy of the compressed air in the pneumatic cavity 10, and the temperature of both media is about the same.
In the illustrated embodiment, the implementation of hot water as the coolant passes through the suction pipe 40 into the boiler 44, which through the heat exchanger 45, reported by the direct pipelines 46 and 47 return flow of the coolant - water is heating circulating water used for space heating. Additionally or alternatively, the heater comprises a heat exchanger 48 for heating the drinking water that flows through the cooling water pipe 49 and is given to the consumer by pipeline hot water 50.
thermal energy of hot compressed air as the coolant is mainly used for air heating purposes, for which hot, compressed air is supplied to the distribution unit 51 air heating systems, and distributed among the users or individual consumers. Obviously, the number of received hot air will be equal to the amount of air that was taken by vetroceramica 17 microsilica. If necessary excess pressure of the compressed air can be reduced, which is vented to the atmosphere through three-way valve 37 through the issuance of 38.
The present invention is in the aggregate of major and minor characters allows to use wind energy with high values of energy conversion over a wide dynamic range from abnormally low wind speeds of 0.5 m/sec, up to extremely high speeds of 50 km/h, which can't be used with modern wind turbines.
The non-use bladed wind turbines in the proposed method leads to a sharp increase reliability and efficiency of the wind power plant while reducing the weight and dimensions, as well as the necessary manufacturing facilities.
In addition, the input parameters of the pump unit with adjustable electric drive are always in the optimum energy saving mode regardless of fluctuations in wind speed, because shocks are not returning the change of the output fluidic and temperature parameters of the energy source.
Of particular importance is also the fact that the energy processes occurring in the proposed method of obtaining wind energy and its transformation, can be easily implemented in various�to link scales that allows you to build a series of wind turbines with high technical and economic indicators in kilowatt and megawatt range.
Industrial applicability is given in a wide scope: in the systems of energy supplies for various purposes, in heating systems and hot water supply of settlements and industrial enterprises, as well as in small-sized wind power plants, such as consumer portable or stationary power generation and/or water heating devices.
1. A method of producing wind energy and convert it into other forms of energy (electrical, mechanical, thermal, or their different combinations), which were captured from the wind of the air stream is mixed primarily with the water flow for the phase transitions of the mixture of air and water in water-and-air supersonic flow with shocks, accompanied by an abrupt increase in pressure and temperature and followed by conversion of the water-air supersonic flow to subsonic pressure air / water flow of energy carrier, characterized in that the air flow speed up and mixed with also accelerated the pressurized water stream, thereby intensifying the process of formation of a supersonic air-stream, which then turned into a subsonic pressure ready for removal�stifling the flow of energy, guiding him for further energy transformations and turning most of his excess hydraulic energy into electrical and/or mechanical energy, and then subsonic pressure air / water flow of energy from residual hydraulic thermal energy is subjected to separation, separating water from compressed air, residual pneumatic energy of the latter is additionally converted into electrical and/or mechanical power and the residual heat energy of the compressed air and water are used respectively for air and water heating and/or hot water.
2. A method of producing wind energy and convert it into other forms of energy according to claim 1, characterized in that the pressurized water flow is created by a pump unit, the supply of which is carried out in a starting mode from the electric storage device power or from an independent power source or from the network, and in the operating mode use of the electricity generated, and the drive is assembled with a device for controlling the number of revolutions in ensuring optimal operating characteristics of the pump unit in the conditions of non-uniformity of wind speed by reducing the number of revolutions of the electric drive with decreasing wind speed and increasing the number of er� speed with increasing wind speed.
3. Wind power generating device for implementing the method according to claim 1 or 2, including a hydraulic installation with circulating energy source comprising a pump unit comprising a pump mainly centrifugal type and electric, tank-receiver, comprising a housing, the bottom and the cover together forming an internal cavity: the lower hydraulic upper and pneumatic, jetting apparatus, comprising a working chamber, a Central tapered nozzle, the mixing chamber and the diffuser, wherein the pump is connected to the suction piping, equipped with control devices and non-return valve, with the tank-receiver, and pressure pipe, equipped with control devices, is connected to the jetting apparatus, characterized in that the hydraulic installation is additionally equipped with microsilica containing sequentially arranged on the movement of the air flow petroselinic, building air-converging channel shape and the outlet check valve, a hydraulic energy Converter with a hydraulic turbine, the shaft of which is made with the possibility of connection to an electric generator or mechanical load, and pneumatic energy Converter with a pneumatic turbine, the PTO shaft which, in �turn, made with the possibility of connection with an electrical generator and/or mechanical load, and the output from an air turbine connected to a node of the distribution system of air heating, the outlet of microsilica attached radially or tangentially to the jetting apparatus in cross section, the output of the hydraulic turbine short pipe with a regulating device and a check valve connected to the tank receiver through the bottom, the entrance to the pneumatic turbine through three-way valve, containing the release into the atmosphere, is connected by a duct to the tank receiver through the cover and into the intake duct mounted boiler, in which a heat exchanger with pipes direct and reverse flow of the coolant - water system of water heating and/or another heat exchanger in communication with the supply pipes to the cold water and the discharge of hot water hot water system.
4. Wind power generating device according to claim 3, characterized in that microsilica established in the amount of n≥1 into the wind, and their rectilinear longitudinal or curved axis located relative to the longitudinal axis of the jet apparatus at the angle β satisfying the condition of 180°≥β≥0°.
5. Wind power generating device according to claim 3, characterized in that the air channel in�of trocricala performed under the following geometric conditions: F 1/F2=(10÷100); 24°≥α≥8°, where F1, F2and α are the input area, respectively, (1-1) and output (2-2) cross sections and the angle of confusingly air channel.
6. Wind power generating device according to claim 3, characterized in that the air channel is made mostly round shape.
7. Wind power generating device according to claim 3, characterized in that the housing microsilica made of water - and airtight material.
8. Wind power generating device according to claim 3, characterized in that in the tank receiver installed inclined partition with the possibility of maximizing the interface of mediums water - compressed air.
9. Wind power generating device according to claim 3, characterized in that at the entrance to petroselinic equipped with safety screen to prevent the ingress of foreign objects.
FIELD: power engineering.
SUBSTANCE: invention relates to the field of heat power engineering and may be used to provide hot water supply and heating of buildings and structures located in areas with no centralised heat and power supply. A thermal wind turbine comprises a rotor wind engine with a vertical shaft, which transmits rotary motion via a reducer to a round plate, to which vertical cylindrical partitions are fixed at the bottom, being submerged into a heat insulated tank with water. Cylindrical partitions are also fixed to the bottom of the tank, and partitions fixed on the round plate move between those. Water arriving into the tank, flowing via movable (rotary) and fixed partitions is heated due to friction. Since the gap between movable and fixed partitions is chosen as minimum possible for water passage, water heating is carried out quite effectively, which is also supported by a roll arranged in the form of a net increasing friction made on the surfaces of cylindrical partitions. Blades mounted on the outer side of the external (relative to the central axis) movable (rotary) cylindrical partition help to pump water into the outlet nozzle of the tank and back to the load.
EFFECT: higher efficiency.
FIELD: power industry.
SUBSTANCE: electric energy generation system includes a wind turbine, a conductor rotated with rotation of the wind turbine, a heat transfer medium container, a magnetic field generator, a heat accumulator and an electric energy generation unit. The wind turbine is attached to a nacelle provided in the upper section of a post, and the conductor, the heat transfer medium container and the magnetic field generator are located in the nacelle. Besides, the heat accumulator and the electric energy generation unit are provided in a facility installed in the lower section of the post. The magnetic field generator is controlled to generate a magnetic field in which the conductor is rotated and therefore heated by induction, and heat of the conductor is transferred to water in the heat transfer medium container to generate steam that in its turn is supplied to a steam turbine and therefore brings into action the electric energy generator to generate electric energy.
EFFECT: proposed electric energy generation system using wind energy is excellent with regard to repairability and is capable of reducing the size and weight of the nacelle provided in the upper section of the post.
8 cl, 3 dwg
FIELD: power generation.
SUBSTANCE: invention relates to power generation. The wind-driven power plant includes at least two wind-power modules placed one over the other. Each wind-power module comprises internal and external wind-power units mounted in a bearing frame, arranged on the same axis and capable of rotating. The internal wind-power unit is a housing, whose sidewalls are formed by blades. The external wind-power unit includes at least two Darrieus blades, mounted on elements of the internal wind-power unit. The two wind-power modules are arranged to allow the installation of a generating unit in between them. The internal and external wind-power units of one module are connected to the generator rotor. The internal and external wind-power units of the second module are connected to the generator stator. The bearing frame is at least three posts connected by cross-members on the side of the top and bottom walls of the housing of the internal wind-power unit. The posts of the bearing frame of one module can be connected to the posts of the bearing frame of an adjacent module.
EFFECT: invention is aimed at improving the efficiency of using wind energy, reliability and simplification of the structure and transportation of the system.
27 cl, 6 dwg
SUBSTANCE: invention relates to electrical engineering and wind power, namely to wind power generators with vertical axis of rotation. In the suggested generator stator containing the excitation sources, magnetic cores, work coil and bases with fasteners; according to the invention the magnetic cores are made in form of top and bottom groups, each group includes three angle-bars, their flanges are connected with cores in series via the coils, at that the first angle-bar horizontal flange looks on end of the rotor element, the second angle-bar is installed in zone of the external angle of the rotor element, and third angle-bar is installed with vertical flange in zone of radial gap.
EFFECT: decreasing of the magnetic resistance and assurance of not only radial but end gap also, resulting in length of the used gap and thus increasing the generator efficiency.
FIELD: power engineering.
SUBSTANCE: invention relates to wind power generation, in particular to segment-type wind power generator. In the rotor of the segment-type wind power generator containing a hub, blades, rim and ferromagnetic bodies and non-magnetic elements connected to each other and installed on the rim; according to the invention the ferromagnetic bodies are designed as pieces of pipes inside which the fixing connections are installed which are designed from non-magnetic elements as bar pieces with holes for fastening bolts.
EFFECT: invention is aimed at minimising of weight and dimensions of the rotor of the wind power generator at minimising of its cost due to simplification of fabrication technology.
FIELD: power engineering.
SUBSTANCE: wind wheel of the segment type electric generator, containing a hub, blades with the stringers designed as a sailing fin assembly, according to the invention, has fastening of stringers to the rim connected to the hub by means of spokes which are designed as flat-topped brackets on vertical sides of which the pairwise cuts are made which contact to the rim. Flat-topped brackets are connected to the rim fasteners, and stringers are fixed on horizontal shelves of flat-topped brackets.
EFFECT: possibility of use of stringers of the blade both as structural elements and magnetic conductors of the segment generator that provides simplification and reduction in cost of the design due to the use of the sailing fin assembly.
SUBSTANCE: invention relates to an electric generating system and to its operation method. The electric generating system brought into action with a fluid medium includes a frame, at least one module 10 for power generation, which is installed on the frame and configured so that a carrying capacity can be provided due to the flowing fluid medium. At least one module 10 for power generation includes a mounting plate 12 attached to the frame, a drive gear 14 connected to a shaft 16 of a rotor, the rotor having a blade 17 attached to the shaft 16 of the rotor, and multiple generators 20 attached to the mounting plate 12. Each generator 20 has an outlet shaft 24 connected so that it can be rotated with the drive gear 14 so that rotation of the drive gear 14 brings into movement the outlet shaft 24 of each generator 20 for the generation of electrical power. Each generator 20 has a disengagement mechanism configured with a possibility of disengagement of the outlet shaft 24 from the drive gear 14.
EFFECT: invention is aimed at use of kinetic energy of a medium flow as much as possible.
15 cl, 14 dwg
SUBSTANCE: invention relates to alcohol obtaining. A system of renewable energy accumulation represents a block of renewable energy sources, connected to a technological scheme of obtaining an alcohol. The block of renewable energy sources provides thermal and electric energy for supporting the processes in the scheme of the alcohol obtaining.
EFFECT: invention makes it possible to provide ethanol obtaining from a biomass, with the application of renewable energy sources, which makes it possible to obtain alcohol on remote territories, possessing the required raw material.
SUBSTANCE: invention relates to aircraft engineering, particularly, to aircraft emergent power plant release. Aircraft windmill set-up device is arranged in fuselage compartment. The latter has skin and structural elements, hatch with cover articulated with structural elements, crosswise and lengthwise walls. Windmill has casing with bar first end secured thereto. This device comprises windmill retracted position lock, windmill release power drive and hatch cover opening mechanism. Bar second end is secured at compartment crosswise wall, at its bottom. Power drive thrust part is articulated with compartment top part crosswise wall while drive actuator is articulated with windmill bar second end. Hatch cover swivel with compartment structural elements is equipped with brackets with supports rigidly secured to hatch cover while arms are articulated with compartment structural elements. Cover opening mechanism is furnished with link composed of aligned body and rod connected to turn relative to each other about common axis. Besides, it has two journals with first ends articulated with link ends, second end being articulated with said bar nearby its first end. Second end is articulated with hatch cover.
EFFECT: simplified design, higher reliability, decreased weight and higher safety.
7 cl, 8 dwg
SUBSTANCE: system of agricultural field microclimate control comprises wind-protective and snow-retaining elements located on the edge of the field, a water reservoir made along the edge of the field from the side of most probable entry of dry wind. On opposite sides of the water reservoir along the field the vertical blinds are placed with the height of at least half the width of the water reservoir, mounted with the ability of rotation about the vertical axis and inclination in the vertical plane. The bottom of the water reservoir can be coated with impervious material, the water sprayers can be mounted along the water reservoir, and the sources of energy for the water sprayers the system can be provided with one or more wind-driven power-plants and solar batteries.
EFFECT: increase in the degree of protection of the field due to reducing the rate and temperature of dry wind and increase in moisture content of the surface air layer, as well as the reduction of energy consumption through the use of natural energy sources.
4 cl, 3 dwg
FIELD: blowers united with wind turbine, possibly used in different branches of industry and in objects of social and living designation.
SUBSTANCE: blower includes drum impeller with vanes mounted in horizontal shaft. Impeller is arranged in cylindrical casing having air intake opening and diffuser. Novelty is wind turbine built-in to structure of blower system. Wind turbine includes wind wheel with vanes on horizontal shaft. Wind wheel is arranged in cylindrical casing with air intake opening and diffuser. Diffuser of blower is connected with air intake of wind turbine. Carrying structure of blower is joined with carrying structure of wind turbine.
EFFECT: improved design, enhanced efficiency.
3 cl, 6 dwg
FIELD: power engineering; small power stations with open turbine hall.
SUBSTANCE: proposed emf source has open turbine hall; foundation; electrical machine provided with rotor, stator, and current-collection unit and connected to drive; self-contained starting motors connected to power supplies; as well as control unit and output module. Novelty is that open turbine hall floor of emf source is provided with circular race, surface part of foundation is equipped with anchor straps, slabs, locking brackets and rollers, aligning brackets and rollers; rotor is installed in journal bearing on annular support of foundation rotor; shaft of the latter has axial hole with service lines; source has supporting and aligning slab incorporated in frame built of hold-down beams, thrust columns, frame and foundation; it also has capital, rotor and stator drive mechanism, pods, aerodynamic compensator, distribution board, jet thrust matching device, thrust electric circuit switch, and auxiliary equipment power supply unit.
EFFECT: simplified design, facilitated maintenance of unit incorporating emf source; enhanced efficiency.
1 cl, 16 dwg
FIELD: wind-power engineering; electrical energy generation.
SUBSTANCE: proposed wind-powered generator has tower with adjustable windwheels, windward positioning device, wound rotors and stators; rotors are made in the form of concavo-concave aerodynamic disks mounted on ends of blades; stator has pole shoes whose ends are coupled with rotors. Windwheels are mounted on shafts of convertible electrical machines incorporating stator excitation system and rotor inductor; inductor coils are connected to rectifiers mounted on windwheel blades; rectifier outputs are connected to field coils installed in rotor disks.
EFFECT: enhanced specific load, reduced starting torque, facilitated acceleration to rated speed.
1 cl, 3 dwg
FIELD: wind-power engineering; wind power generators.
SUBSTANCE: proposed windmill-electric generating unit has electric generators; novelty is that this unit is made in the form of flow-through piping network with sealed valves and pressure transducers, generating unit ends being disposed in areas held at different atmospheric pressures; piping length and diameter meet following expression: D/L = ρλv
EFFECT: provision for continuous operation of windmill-electric generating unit.
1 cl, 1 tbl
FIELD: wind-power engineering; generation of electric power.
SUBSTANCE: proposed wind-power electric generator has tower with swivel cross-member and wind wheel, wind setting unit, rotors and stators with windings; rotors are made in form of aerodynamic washers having shape of concavo-concave disks secured on ends of blades and stator is provided with pole pieces whose ends are magnetically connected with rotors which are magnetically connected with additional stators; blades are provided with additional rotors magnetically connected with additional stators; additional rotors are electrically interconnected.
EFFECT: reduction of starting torque.
FIELD: wind power engineering.
SUBSTANCE: invention relates to plants generating electric energy to produce hot water for industrial use. Proposed combination wind power plant containing energy generating unit in form of windmill, air flow booster connected with windmill and energy generating and transforming unit in form of air turbine and generator connected to turbine, generator being butt-joined with gas-turbine turbine engine is furnished, according to invention, with heat recovery unit and processing unit, for instance, sea water freshening and cleaning unit made in form of thermal distiller and reverse osmosis device connected with heat recovery unit. Blades of windmill are made divided into sections for turning relative to each other with possibility of turning relative to longitudinal axis. Energy generating and transforming unit is provided with additional self-contained internal combustion engine and electric generator connected with said engine which is coupled with generator of gas-turbine unit to form common power unit. Control system includes device which, together with computer, provides electric parameters similar to network parameters. Energy generating unit is provided with device to divide air flow, said device being connected by flexible air line with air flow booster made programmable, for instance, pneumatic and multistage, whose low-pressure stage is connected with air turbine and with each member of processing unit, and high-pressure stage, with device to evaporate water of thermal distiller and reverse osmosis device which are connected with heat recovery unit. Point of connection of air line and power supply line is common, and torsion shafts coupled with vane engine and turbine are connected to said point.
EFFECT: increased efficiency owing to recovery of exhaust (hot) gases of engine and dissipation heat, enlarged sphere of industrial application of plant.
34 cl, 1 dwg
FIELD: power and heat supply.
SUBSTANCE: invention relates to self-contained power, heat and hot-water supply systems of dwelling houses and industrial buildings. Proposed system contains wind power generating plant for generating electric power and connected with power consumers; energy accumulator connected with wind power generating plant and power consumers; plant for converting solar energy into heat energy and heat accumulator, both connected with heat energy consumers. System includes heat pump driven by wind power generating plant and connected with heat energy consumers; inverter through which electric energy accumulator is connected with electric energy consumers; sewage water heat recoverer; Earth heat collector and automatic control system connected through heat and electric load transmitters with actuating mechanisms. Plant for converting solar energy into heat energy contains gang of solar collectors connected by heat carrier lines with at least two heat exchangers, one of which is arranged in heat accumulator and the other in heat exchange device connected by heat carrier line with Earth heat collector. Heat pump contains compressor driven by wind power generating plant, at least two extension evaporators and at least two extension condensers. Extension evaporator is built into heat exchange device connected by heat carrier line with Earth heat collector. Extension evaporator is built into sewage heat recoverer. Extension condenser is built into hot-water tank, and second extension condenser is built into heat exchange device connected by heat carrier lines with heat energy consumers.
EFFECT: improved reliability and economy of self contained power and heat supply systems.
10 cl, 5 dwg
FIELD: wind power engineering.
SUBSTANCE: invention can be used for converting energy of air flows into electric energy. Proposed method includes passing of first on-coming air flow between two conversing and diverging aerodynamic surfaces in direction of flow to form zone of reduced pressure and transmitting of second air flow along pipeline from surrounding space into zone of reduced pressure. Converter is installed on way of second air flow. Space is made in zone of reduced pressure in, at least, one of aerodynamic surfaces to provide swirling of second air flow by wall of said space. Swirling of second air flow is formed tangentially in direction of passing of first on-coming air flow. Device contains two plates. Pipeline is designed to transmit second air flow. One end of pipeline is made open and it is connected with surrounding space, and other end is connected to outer surface of one of plates. Converter is installed in pipeline. AT least one of plates is provided with space to swirl second air flow. Space communicates with pipeline. Space is made orthogonally relative to direction of first on-coming air flow tangentially in direction of first on-coming air flow.
EFFECT: improved efficiency of energy conversion.
23 cl, 14 dwg
FIELD: heat power engineering.
SUBSTANCE: invention can be used for heating and hot water supply of different buildings. Proposed wind-heat generator contains water heat accumulator, windmill, bevel gear train (transmission), mechanical heater in form of agitator with movable blades each pair of which is made to centrifugal governor scheme (Watt governor). Wind heat generator is furnished additionally with second bevel gear train (transmission) rotating in opposite direction relative to first bevel gear train, each train being provided with equal number of agitators with movable blades.
EFFECT: increased efficiency of utilization of wind energy in wider range of wind velocities, improved reliability of heat generator and reduced cost of thermal energy.
FIELD: wind power engineering.
SUBSTANCE: invention relates to wind plants for direct conversion of wind energy into thermal energy. Proposed wind thermal plant contains windwheel with rotary blades and friction heat generator with heat exchanger. Novelty is that heat generator is made in form of conical drum with ribbed surface and rotor is provided with friction lining being installed on shaft of windwheel. Pressure of lining onto drum surface depends on wind head. Heat exchanger is provided with air intake. Windwheel is provided with speed and vibration protective device.
EFFECT: simplified design, improved reliability in operation within wide range of wind loads with provision of ventilation of heat rooms.
2 cl;, 4 dwg