System of field microclimate control
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
The present invention relates to agriculture and can be used during the cultivation of crops to reduce the negative impacts of droughts.
The essence of the problem to be solved is that in conditions of the South of Russia are often observed winds - South or South-East winds that carry dry and hot air. Due to the low humidity of the wind has a dampening effect on plants even when adequate soil moisture, as the root system does not have time to compensate for the loss of moisture in the leaves of plants.
A known method of regulating the humidity of surface air, including wetting of the leaf surface of plants during the hottest time of the day with the installation of spray irrigation mounted on tractors. The spray lasts for two hours (Patent RF №2172583, MKI A01G 25/09, BI No. 24, 2001).
The disadvantage of this method is the necessity of creation of irrigation systems, high energy intensity of the process associated with repeated daily passage facilities spray irrigation on the field at intervals of not more than two hours.
Known stationary irrigation system regulating the temperature and humidity of air, consisting of a water distribution network is supplied to the nozzles melodiers the CSOs sprinkling. Such stationary irrigation system provides round-the-clock control of humidity surface air at the site (Patent RF №2322047, MKI A01G 25/02, BI No. 11,2008,).
The disadvantages of this system are: the need for the construction of irrigation network, its high energy consumption and cost.
Famous windproof and snow retention system of shelterbelts to regulate the microclimate of the field, which is placed on its borders (Handbook on reclamation, M., Rosagropromizdat, 1989, S. 313-316).
Shelterbelts promote the accumulation of winter precipitation falling as snow, and stockpiling of soil moisture when it melts in spring. In summer during the dry winds trees and shrubs reduce the speed and temperature of the wind, raise the humidity of the air, vaporizing the water from the leaf surface and thus reducing the negative impact of droughts on agricultural crops cultivated in the area of the belts. This system is adopted as a prototype.
The disadvantages of this system of regulation of microclimate fields are the duration of the growing process of the belts until the plant height, providing effective protection from the winds; the high cost of works on creation of shelterbelts associated with the need for irrigation of seedlings in the first years after planting and care Les what apolosi; the need for periodic planting of new plants to replace those killed, as well as spending the most part stored in the retention of moisture on water use by the vegetation of the forest.
To eliminate the mentioned disadvantages allows the proposed system of regulation of microclimate fields comprising placed along the field boundary wind and snow retention elements, characterized in that it includes a reservoir arranged along a field boundary from the most likely penetration of winds, on the opposite sides of which are placed along the field vertical blinds height of not less than half the width of the reservoir, installed with the possibility of rotation around the vertical axis and tilt in a vertical plane.
In addition, the bottom of the reservoir may be covered with impervious material, along the pond can be set to spray water, and as sources of energy for the spray water system can be equipped with one or several wind power plants and solar panels.
A new technical result is that placed on the field boundary from the most likely penetration of winds reservoir, fitted blinds, allows winter snow retention on the surface of a pond with water accumulation in the spring posleduuschei protecting it from evaporation before the start of the winds, and you are experiencing the winds to produce a slower rate and temperature, to increase the humidity by installing blinds on both banks of the reservoir at a selected angle to the wind direction. The use of sprays of water will ensure a more efficient humidification up to 5 - 6 m, and drive them from wind turbines and solar panels will save the cost of energy for electricity generation.
The essence of the proposed technical solution is illustrated by drawings, where figure 1 shows a General view of the system of regulation of the microclimate of the field with the position of the elements shutters on field # 1 at operation snow guard and the No. 2 - mode humidification when the winds; figure 2 - system with the position of the blinds while maintaining the accumulated moisture; figure 3 - cut system And when the sprays of water.
Regulation of microclimate field is located mainly along the southern boundary of the field 1 of the reservoir 2, on the North and South banks of which the axis 3 is set plate louvers 4, while in the lower part of axis 3 are mounted hinges 5, which enable the plates blinds can be rotated around a vertical axis and tilt in a vertical plane. Along the longitudinal axis of the reservoir 2 can be laid pipe 6 with melkodispersnye and nozzles 7, mounted on the uprights 8. The water supply pipe 6 is connected to the pump 9 driven by electricity generated by a wind power installation and solar panel 10. The bottom of the reservoir 2 may have an impervious floor 11. When the device of the reservoir, the width of which can be 4-6 m at a depth of 2-4 m, the extracted soil distribute adjacent to the reservoir site, forming the bias field surface side of the reservoir 2.
The proposed system of regulation of microclimate field works as follows.
With the onset of winter installs plates blinds 9 on the mode of the snow guard. Because the overwhelming amount of snow bring the Western and North-Western winds, blinds 4, located on the Northern shore of the reservoir 2, installed in accordance with the direction of the wind, and blinds on the South shore of the reservoir 2 at an angle thereto (Fig 1 field # 1). The height of the blinds is 2,5-3,0 m Meeting with a barrier, reduces wind speed, thus there is a loss of some snow. When you hit the air flow between the lines blinds is changing its direction, and accordingly, the additional speed reduction and the precipitation of part of the snow. Thus it is filled with snow reservoir 2 and the formation of snow over it and the surrounding areas.
Spring is : size is out of pond 2 water as due to accumulated snow, and runoff from adjacent areas. Impervious layer 11 prevents seepage water losses. After the filling of reservoirs produce protection of water from evaporation by creating shelter. This plate blinds have 4 parallel to the reservoir 2, producing a rotation axis 3 in the hinges 5 and placing the plate louvers 4 above the surface of the pond. In this case, since the height of the blinds 4 less than half the width of the reservoir 2, the ends of the blinds obrazovat roof, which will protect the water in the reservoir from evaporation. However, this roof will not impede the flow in the reservoir sediments.
Upon the occurrence of droughts axis 3 is transferred in the vertical position, the plate louvers 4 on the South side of the reservoir turn in the direction of the winds, and on its North side at an angle to the wind direction (figure 1 field # 2). Wall formed blinds, creates an obstacle in the path of the winds, reducing its speed. The Northern line blinds changes the direction of air flow, causing turbulence, which increases evaporation from the surface of a pond.
After installing blinds for a better effect can be included fine spray of water 7, to which water is supplied through the water supply pipe 6 from the pump 9. Design fine spray allows you to throw to a height of 5-6 m size drops 50-100 MK, about rasua over the pond cloud of spray 12. These droplets completely evaporate, increasing the humidity. When the evaporation of water not only increases humidity, but also decreases its temperature and increases the density, so the cooled and humidified air will fall to the earth's surface, creating a more favourable microclimate in the surface layer, where there are plants. The water spray in the air continue until the termination of the winds and recovery are favorable for plant moisture of the surface layer of air.
To provide electrical power to the pump and fine spray appropriate to use renewable clean energy sources - wind energy plant with solar panels 10. The feasibility of using both sources is dictated by the need to ensure the smooth operation of the system, as during the dry wind power wind during the day may vary and be reduced to quantities not sufficient to operate a wind power installation and solar panels do not work at night.
Thus, the proposed system is the protection of adjacent fields from the destructive action of the winds, which have a significant effect on its microclimate, reducing the rate and temperature of the winds and increasing humidity of the surface layer is ozdoba due to moisture, accumulated during the winter. In addition, the use of natural, environmentally friendly sources of energy - wind and solar, can reduce operating costs.
1. Regulation of microclimate fields comprising placed along the field boundary wind and snow retention elements, characterized in that it includes a reservoir arranged along a field boundary from the most likely penetration of winds, on the opposite sides of which are placed along the field vertical blinds height of not less than half the width of the reservoir, installed with the possibility of rotation around the vertical axis and tilt in a vertical plane.
2. The system according to claim 1, characterized in that the bottom of the reservoir is covered with impervious material.
3. The system according to claim 1, characterized in that along the pond installed spray of water.
4. The system according to claim 3, characterized in that as energy sources for water dispensers it is equipped with one or several wind power plants and solar panels.
SUBSTANCE: invention relates to a LED module. A module consists of several LEDs installed on a printed circuit board with the LEDs having respectively the so-called layup with a lens by which the respective LED extends beyond the printed circuit board plane, the LEDs are connected respectively with an element for the input of optical radiation of a light guide body and the respective luminous flux of matched LEDs is emitted outside from the LED module by means of respectively matched element for luminous flux input. At least one passive LED which can be activated if one of LEDs fails is provided on the printed circuit board for LEDs in order to achieve homogeneous appearance. The luminous flux emitted by these passive LEDs enters the luminous flux input element of the respective LED and is emitted outside by the luminous flux input element.
EFFECT: development of a LED module consisting of several LEDs set on a printed circuit board, failure of some LEDs is not seen from outside due to the "input" of the luminous flux, emitted by the passive LED, into the luminous flux input element of the failed LED.
2 cl, 2 dwg
FIELD: physics, optics.
SUBSTANCE: invention relates to semiconductor devices, particularly polymer solar cells. Disclosed is a polymer solar cell having, arranged in series: a supporting base in the form of a transparent polymer photoluminescent substrate, a transparent anode layer, a photoelectrically active layer and a metal cathode layer, wherein the polymer photoluminescent substrate consists of an optically transparent polymer containing a luminophore, selected from luminophores of general formula (I), where R is a substitute selected from: linear or branched C1-C20 alkyl groups; linear or branched C1-C20 alkyl groups, separated by at least one oxygen atom; linear or branched C1-C20 alkyl groups, separated by at least one sulphur atom; branched C3-C20 alkyl groups, separated by at least one silicon atom; C2-C20 alkenyl groups; Ar denotes identical or different arylene or heteroarylene radicals selected from: substituted or unsubstituted thienyl-2,5-diiyl, substituted or unsubstituted phenyl-1,4-diiyl, substituted or unsubstituted 1,3-oxazole-2,5-diiyl, substituted fluorene-4,4'-diiyl, substituted cyclopentadithiophene-2,7-diiyl; Q denotes a radical from said series for Ar; X denotes at least one radical selected from said series for Ar and/or a radical selected from: 2,1,3-benzothiodiazole-4,7-diiyl, anthracene-9,10-diiyl, 1,3,4-oxadiazole-2,5-diiyl, 1-phenyl-2-pyrazoline-3,5-diiyl, perylene-3,10-diiyl; L equals 1 or 3 or 7; n is an integer from 2 to 4; m is an integer from 1 to 3; k is an integer from 1 to 3.
EFFECT: high efficiency and simple technique of producing flexible polymer solar cells.
8 cl, 7 dwg, 2 ex
SUBSTANCE: invention is intended for metrological determination of the internal quantum efficiency of a semiconductor photodiode based on the current-voltage characteristic thereof. The oxide biasing method is the known method of calibrating photodiodes. The efficiency of collecting charges for photocurrent generated in a p+ region needs to be determined in order to describe silicon p+nn+photodiodes. The primary reason for losses in the frontal region is the high rate of electron-hole recombination. This effect is intensified by the presence of positively charged ions which result in a surface electric field. The oxide biasing method is widely used to determine the extent of this effect on the internal quantum efficiency of a diode. The advantage of this method is direct measurement of saturation photocurrent and calculating internal quantum efficiency therefrom. However, this method has a shortcoming which lies in the degradation of the working surface of the semiconductor under the effect of a high negative voltage applied to the surface. The aim of this invention is to provide a method of determining quantum efficiency of a photodiode, which is based on comparing experimentally measured current-voltage characteristics thereof with theoretically calculated characteristics. This aim is achieved by recording to current-voltage characteristics of a photodiode at two different power values of incident laser radiation for which only the ratio is known. Said characteristics are then compared using a developed calculation procedure.
EFFECT: simple calibration procedure while maintaining accuracy characteristics of the photodiode.
FIELD: physics, optics.
SUBSTANCE: invention relates to optoelectronic devices. The semiconductor photoelectric generator has a transparent protective coating on a working surface on which radiation is incident and photoconverter sections optically connected by a transparent sealant with the protective coating. The photoconverter sections are inclined towards the working surface at an angle φ=5-50°. Flat mirror reflectors are mounted between the photoconverter sections with an angle of inclination towards the working surface of the generator of ψ=5-50°. The mirror reflectors and the photoconverter sections are in form of a periodic saw-tooth corner structure. The photoconverter sections have a double-sided working surface and the mirror reflectors have a double-sided reflecting surface.
EFFECT: high illumination and electric power per unit surface area of the photoconverters.
6 cl, 2 dwg
SUBSTANCE: hybrid photosensitive circuit includes a diamond matrix photodetector, indium columns and a silicon multiplexer with sensitive sites arranged thereon in a staggered manner in form of a rectangular matrix and the number of which is equal to the number of indium columns. The matrix photodetector includes a diamond plate and an upper flat electrode lying thereon, as well as lower electrodes of sensitive elements of the matrix photodetector, the number of which is equal to the number of indium columns lying under the diamond plate. On the lower side of the diamond plate there are boron-doped sites arranged in a staggered manner; upper contact surfaces of odd or even lower electrodes are galvanically connected to the lower surface of the diamond plate, and the upper contact surfaces of the odd or even lower electrodes are galvanically connected the boron-doped sites. Lower contact surfaces of lower electrodes are galvanically connected through indium columns to sensitive elements of the silicon multiplexer.
EFFECT: expanding the detected radiation range 75-fold owing to simultaneous recording of the image in the ultraviolet and infrared spectrum.
SUBSTANCE: method for analogue-to-digital conversion of optical radiation involves converting the radiation into photocurrent; integrating the photocurrent over the exposure time into an electric charge which changes the initial charge input before exposure; converting the resultant charge into signal voltage; comparing the signal voltage with a reference voltage and switching the comparator as the comparison result; generating binary signals, modulated on the time of switching relative the initial time; generating digital codes based thereon; storing the digital codes and successively sending said codes to outputs, wherein the initial charge is input into the switched conductivity diode by applying a voltage corresponding to the initial charge in the forward direction at the rate of change which causes injection of minority carriers, which does not exceed the level of triggering the switching diode into the conducting state, and the reference voltage applied is the corresponding sampling voltage at a variation rate sufficiently high to cause injection of minority carriers, needed for triggering thereof upon reaching voltage corresponding to the resultant charge, with given accuracy. The device which realises this method has one or more photosensitive cells connected to address and signal lines, each cell having series-connected photodetector, initial charge input circuit, charge converter for converting the charge generated by the photodetector signal, in addition to the initial charge, into output voltage of the photodetector, a comparator which converts the difference between the output voltage of the photodetector and a reference voltage into a digital cell signal, a circuit for reading the digital cell signal through address and signal lines, a circuit for generating cell signal codes, random access memory for storing digital codes, a circuit for reading cell signal digital codes on one or more outputs of the photodetector. In a cell, the photodetector, the initial charge input circuit, the charge converter and comparator are in form of a tunnel switching electrode in a MIS (metal, insulator, semiconductor) structure, one of the leads of which is connected to the address line and the other to the signal line.
EFFECT: high spatial resolution with high equivalent quantum efficiency.
9 cl, 3 dwg
SUBSTANCE: light-emitting module has a semiconductor light-emitting device and a thermal switch which is designed to protect the light-emitting device from overheating. At high temperature the junction of the device may reach a critical level causing catastrophic breakdown of the device. According to the invention, the thermal switch is designed to shunt the semiconductor light-emitting device. This is especially advantageous since the thermal protection offered by the switch correlates directly to the temperature of the device in operating conditions.
EFFECT: light-emitting module provides thermal protection which is controlled and adapted to junction temperature of the semiconductor light-emitting device.
8 cl, 5 dwg
SUBSTANCE: invention relates to methods of measuring parameters of infrared matrix photodetectors operating in accumulation mode. The method of measuring quantum efficiency and dark current of photosensitive cells of matrix infrared photodetectors involves installing placing a photodetector at a given distance from the radiating surface of an extended black body, setting a first given radiant temperature of the black body and recording the value of signals of all photosensitive cells at zero accumulation time and a given accumulation time. A second radiant temperature of the black body is then set, said second radiant temperature being different from the first by a given value δT, and values of signals of all photosensitive cells are recorded at given accumulation time; values of quantum efficiency and dark currents of photosensitive cells are automatically calculated based on three measured arrays of signals.
EFFECT: enabling automation of the method of measuring quantum efficiency and dark current of a photodetector, enabling reduction of the time for measuring quantum efficiency and dark current of a photodetector, and enabling increase in reliability of measuring quantum efficiency and dark current of a photodetector.
2 cl, 3 tbl
FIELD: power engineering.
SUBSTANCE: two parallel closed circuits of power supply systems of a load and Sun tracking drives are connected together. A system of power supply to an autonomous load comprises a closed circuit from the following serially connected components: a solar photoelectric plant (1), a charge-discharge controller (2), a block of accumulator batteries (3), an inverter (4), a block for collection and processing of data (5), a power load (6). A system of power supply to Sun tracking drives represents a closed circuit from the following components connected in series: a solar photoelectric plant (1), a charge-discharge controller (7), a block of accumulator batteries (8), a block of control of a power supply system for engines (9), blocks of power supply and control of motor drives (10) and (11), motors tracking the Sun position in azimuthal and zenithal planes (12) and (13).
EFFECT: higher efficiency of an autonomous system of power supply based on a solar photoelectric plant.
4 cl, 4 dwg
SUBSTANCE: solar photo energy apparatus has rectangular concentrator photoelectric modules (1) mounted on a system (2) for directing concentrator photoelectric modules (1) towards the sun. The system (2) for directing concentrator photoelectric modules (1) towards the sun is a horizontal arm (4) with parallel rotating cantilevers (5) directed in the South-North direction, which is mounted on two supports (6) and is rotated by a first electric drive (7) mounted on one of the supports (6). The parallel concentrator photoelectric modules (1) are mounted at a distance H from each other to cantilever (5) ends which are distal with respect to the horizontal arm (4). Proximal cantilever (5) ends are synchronously rotated by a second electric drive (9) mounted on a horizontal arm (2). Distance H between cantilevers (5) is selected depending on the width M of the concentrator photoelectric module (1) and the geographic latitude φ of the place the photo energy apparatus us used.
EFFECT: invention enables to reduce sensitivity to wind loads, while simplifying the design.
2 cl, 7 dwg
FIELD: power engineering.
SUBSTANCE: invention relates to the field of wind power engineering, in particular, to rotors of wind power generators of segment type. In the rotor of the wind power generator comprising a hub, blades, arched elements and magnetic conductors, according to the invention, magnetic conductors are made in the form of sections of pipes, inside of which there are fixing elements protruding beyond the ends of the pipes, which are connected to arched elements, for instance, yokes with tightening bolts. Ferromagnetic magnetic conductors in the form of sections of pipes substantially form the rotor teeth.
EFFECT: advantage of this rotor is manufacturability, low cost of initial blanks, representing sections of pipes, which provides for reduced mass and dimensions of a rotor of a wind power generator at minimisation of its cost.
FIELD: engines and pumps.
SUBSTANCE: invention relates to wind power engineering and can be used for production of electric or mechanical power. Windmill consists of windwheel with rotary cylinders, cylinder drive, power supply, electrical generator articulated with windwheel and device to direct windmill to counterblast. Horizontal windwheel is composed of drum with rotary discs running in bearings on fixed shaft secured at disc ends. Cylinders with drive run on their axles in said discs. Shield secured to windmill fixed shaft is located perpendicular to counterblast. Drive is composed by one motor transmitting rotation via flexible links to pulleys of cylinders located windward. In compliance with another version, cylinders drive is composed of reversible motors secured at the drum and equipped with contact current collector while extra disc with two current collecting rings is fixed at stationary axle. Note here that said rings can be composed of two semi-rings located windward and two semi-rings located leeward. Said semi-rings are connected to power supply opposite poles. Shield secured to windmill fixed shaft is located perpendicular to counterblast.
EFFECT: efficient usage of Magnus forces.
4 cl, 2 dwg
FIELD: engines and pumps.
SUBSTANCE: invention relates to wind-power engineering, primarily to low-speed windmills. Invention aims at decreasing the generator weight and overall dimensions at minimised costs. Stator comprises base, coils, exciter and two strip-type magnetic conductors. First coil with core is arranged at its outer end. Two gaskets are fitted between second magnetic conductor and base. Second coil with core is arranged at its outer end of second magnetic conductor. Inner ends of magnetic conductors are lap-jointed for this joint to support exciter.
EFFECT: higher manufacturability and efficiency.
FIELD: engines and pumps.
SUBSTANCE: invention relates to wind-power engineering, primarily to low-speed windmills. Windmill stator comprises coil, excitation source and magnetic cores. In compliance with this invention, this stator comprises lower ferromagnetic angle piece and upper non-ferromagnetic angle piece. Working coil with core and excitation source are secured at lower ferromagnetic angle piece horizontal flange. Upper non-ferromagnetic angle piece horizontal flange has bores for working coil core and exciter tip.
EFFECT: integrated design, decreased weight and sizes, minimised costs.
FIELD: power industry.
SUBSTANCE: wind water heater comprises vertical housing, cover and bottom, inside which the top, middle and bottom perforated baffle plates are secured. Vertical shaft mounted in the cover through the flange and shutdown device, is connected with the shaft of wind engine. Shaft at the bottom is mounted in the opening of fixed disc attached to the bottom and rigidly connected with the movable disc. Hollow sleeves filled with substance changing its state of aggregation, are fixed on each of three baffle plates on top. The upper part of indicated sleeves is secured to the stationary disk, contacting with movable disc fixed on the shaft. Four blades in the form of semicylinders of pipe segments are fixed radially on the shaft under the cover. Four lower blades are fixed on the bottom above the movable disc with blades in the same form. Four blades in the form of semicylinders are fixed radially inside three sleeves on the shaft opposite the openings.
EFFECT: wind water heater is simple in design, compact, has significant mechanical energy converting factor into thermal energy and is multifunctional.
2 cl, 1 dwg
FIELD: energy industry.
SUBSTANCE: block tiered and in-line wind power plant consists of block tiered and in-line flyover mounted and fixed to the base. Each tier forms the blocks mounted in two rows with the casings having acoustic isolation on their surface and consisting of pipes and middle parts, in which the wind-driven electric plants are installed. The wind-driven electric plants are equipped with electromechanical system for turning them inside the casings from the sensor signal of the wind direction, when the wind direction changes to reversed. The casing pipes have a form of a square shape in the inlet part with a subsequent transition to the shape of a truncated cone, the shape of the pipes enables to capture oblique wind flows and guide them to the middle parts. The blocks of the first tier are attached to the base and to each other, the blocks of the subsequent tiers are attached to the previous ones and to each other. The wind-driven electric plant, except stairways, is equipped with a goods-passenger lift, on the roof of the last tier the solar panels can be installed, the space under the first tier is used to place the inverter, diesel generator and the battery charging room.
EFFECT: invention enables to use maximum of the energy of the wind flow.
SUBSTANCE: wind electric generator contains a windwheel and a magnetoelectric generator installed at the shaft, a rotor of the generator, which is made as two discs with permanent magnets place at it at equal spaced, a static stator with equally-spaced inductance coils, which is placed between the rotor discs, centrifugal governors of a magnet gap and spade springs are installed at the shaft, the shaft has longitudinal spline grooves with inserted protrusions which are made in the rotor discs; the rotor discs are installed at the shaft so that they are movable in axial direction in regard to the static stator; spade springs are installed so that the magnet gap can be increased between the rotor permanent magnets and the stator inductance coils, each centrifugal governor of the magnet gap is made as a double-arm lever and installed so that it can diminish the magnet gap between the rotor permanent magnets and the stator inductance coils while a weight is installed at the other arm.
EFFECT: maintenance of electric power generation at low and high wind speeds and at increased electrical loads.
FIELD: engines and pumps.
SUBSTANCE: invention relates to wind-power engineering. Segment windmill rotor comprises hub, blades, rim and ferromagnetic bodies arranged at said rim. Said ferromagnetic bodies are composed by pipe lengths of rectangular cross-section. Pipe length mid section has recess of the section three sides while fourth side has a flexure with its line perpendicular to said rim.
EFFECT: decreased weight and overall dimensions, lower costs.
SUBSTANCE: invention relates to electrical engineering and wind-power engineering. The suggested windmill generator stator contains magnetic cores, an excitation system, tightening elements and a winding, at that according to the invention the stator is made as a flat-topped bracket and a wafer pack with installed armatures with an operating and exciting coils and the middle part of the above pack is rigidly connected to the middle part of the above flat-topped bracket.
EFFECT: high production effectiveness of the windmill generator stator attained due to possible regulation of the air gap flexure, aligning this stator to different rotors by pressing the pack middle part to the middle part of the above flat-topped bracket, reducing costs for the stator production by reducing a number of magnet cores and tightening elements for the windmill generator stator.
SUBSTANCE: invention relates to wind-power engineering. Proposed rotor comprises hub, blades, spokes, ring and ferromagnetic bodies arranged at said ring and secured thereto by fasteners. Ferromagnetic bodies are composed by short pipes with mid part furnished with the recess facing the ring while fasteners are composed by tightening band yokes.
EFFECT: decreased weight and overall dimensions, lower costs.
SUBSTANCE: transfer screen made of three parts: a vertical part, a broken part made of two sections, one of which is a retaining section of the broken part and is inclined to a windward side at the angle to the vertical part, and the second section - a boost section of the broken part, which is inclined towards the windward side at the angle to the vertical part of the screen. The screen is installed at the edge of a road surface, at the same time the transfer screen is arranged at the windward side, the minimum height h2 of the transfer screen, which ensures laminarity of snow drifting, is calculated using the formula h2=b/4-h, where h - height of a road fill (slope), b - width of the road surface, and the appropriate value of shift d of a cylindrical ellipse axis (Y) perpendicular to the road is calculated using the formula d=[2(h1 2-h2 2+2h(h1-h2)]/b, with the cylindrical ellipse radius R, which ensures snow drifting transfer over the road surface, where h1 - the specified height of the transfer on the opposite side of the road surface. The boost section of the broken part (A-C) is directed along the tangent to the ellipse passing through the upper point of the transfer screen, the minimum length 1 of the boost section in the broken part (A1-C) is calculated to ensure the specified function of snow drifting border shape in the form of the cylindrical ellipse described with the flow equation (a+d)+4y=R, where a - maximum axle of the ellipse, parallel to the road surface, and is calculated from the point of crossing of the underlying surface of the road slope base, y - coordinates of the ellipse axle Y, perpendicular to the road surface, and R - radius of the ellipse, and with the condition that the minimum height of the transfer screen (D-C1) is equal to (h2 - 0.3 m), making at least 1-0.3 m sinβ, where β - angle between the tangent to the ellipse and the road base, and α - angle to the vertical part of the screen in the retention section of the broken part (A-B), makes not more than 90° and not less than the angle α1 - the angle between the vertical part of the transfer screen and the perpendicular line to the ellipse tangent drawn to the point of crossing (B) of the retention section of the broken part with the vertical part of the transfer screen, and the retention section length depends on the value a, which characterises the flow mass. The height of the vertical part of the screen to the broken part of the screen (B-D) is selected depending on the angle βmax, being a characteristic of snow drifting.
EFFECT: increased operational reliability.
11 cl, 2 dwg