Wind power plant

FIELD: wind power engineering.

SUBSTANCE: wind power plant comprises multi-row load-bearing structure provided with the group of vertical take-off shafts. Each of the shafts is kinematically connected with the group of primary wind power converters mounted in rows on the rotating devices near the vertical shaft. The take-off shafts are made of individual links interconnected through couplings and intermediate shaft set in the berating unit provided in the inter-row cross-piece. Each primary converter is made of endless chain mounted on two sprockets horizontally secured to the rotating devices in the bearing units of the shafts whose one end is connected with the vertical take-off shaft through a conical gear.

EFFECT: enhanced efficiency.

 

The invention relates to energy and can be used to create energy for the widespread adoption of wind energy.

Current designs of wind energy based on the use as the primary vetroenergoustanovka preparirovannyh windwheels different diameters, the average efficiency of which does not exceed 0,4. Each wind power installation represents almost an individual power plant, a single wheel which is mounted to individual Overdrive gearbox and individual generator. Was to be at the same wind speed, the power of this windmill is entirely dependent on the diameter of the used wind turbine. Weight large windwheels used in modern high-power wind turbines, reaches ten tons, but because their making available a very limited number of powerful businesses. Installation and maintenance of such windmills can not do without the use of powerful lifting equipment and convenient access routes to it. All this is not acceptable not only for mountain areas, where winds are strong and frequent winds, but also for remote rural areas that need the energy the most.

Also known installation for utilization of the energy of the current environment on A. is. The USSR №1624197, where I was offered the option of disposal of specified energy by using as a primary energoproizvoditelej, small in size and heavy in weight, and therefore available for manual Assembly and mass production even in small businesses. Design features such small primary energoproizvoditelej with folding blades allow you to attach a group to a common vertical shaft PTO and work together to bring this vertical shaft into rotational motion. When working movement of such blade, the lower rectilinear section of the endless chain, is in the upright position, substituting wind its largest area, and when its idle movement, the lower rectilinear section of this endless chains, such blade moves towards the current flow in a horizontal position, placing him his smallest area of the ribs.

If the current environment, acting on the folding blades such endless chains are streams of ocean currents or lowland rivers with their low velocity, the problems with the timely transition of drive blades from his its vertical to a horizontal position and back will not occur. Much worse will be on the lo with timely folding blades for disposal energy of the high-speed flow of wind. In this case, even a short length of the blade will be hard to deal with this kind of work and will be subject to accelerated wear and failure.

The aim of the present invention is to eliminate these disadvantages of the prototype and the design of the wind energy installation, capable of high efficiency to convert wind energy into the energy of the rotational motion of its vertical shaft PTO total effort connected groups of primary vetroenergoustanovka capable of increasing the wind speed exceeds rated, be disposed of only the necessary part of the wind energy.

This goal is achieved by using the General principle and arrangement of the vertical shaft PTO bearing on multi-level structures, together with their primary vetroenergetichesky, as in the prototype, this changes the design of the primary energoproizvoditelej and improved design of the vertical output shaft.

The modified structure of the primary vetroenergoustanovka represents the endless chain, on the outer side of each link which is perpendicular to its outer surface, mounted on the gate axis of the drive blade. By the power of springs mounted on each link of the endless chain, regards is now driving the blade pressed against the hard stop, also mounted on each link of the endless chain, but so as to drive the blade in its working position relative to the direction of the wind was constantly under the given angle and facing its front edge toward the wind. The distance from the front edge of the blade to its rotary axis must be less than the distance from the rotary axis of the rear edge of the blade. Due to this on the drive blades are formed two levers of different lengths, in which the force of the wind. Due to the difference of the lengths of these levers on them having different torques. If the wind speed is no longer calculated, the angle of deviation of the blade from the wind direction held by the spring, will be permanent. With the increase of wind speed above rated limited computational power of the spring will be forced to allow the drive blades to reduce its angle from the wind direction, which automatically adjusts the force of the wind acting on the drive rotary blade.

The enhanced design of the vertical output shaft is iterative. The links of each row are concatenated to each other via a clutch and an intermediate shaft mounted in a circulation path overlapping carrier tiered structure.

The selection of the claimed design the products of the wind energy installation is determined by the output made on the basis of the following chain of logical reasoning. From physics it is known that if the air flow with rectangular shape of its cross section and having certain dimensions of their parties place a flat plate, which is inclined to the wind direction position precisely fit into the framework of the cross-section of this air flow, the force and power of this air flow can be taken for ravnodeystvuiushchey the other two forces acting on an inclined plate. One of these forces will be directed onto an inclined plate parallel to the wind direction, while the other component of force will be directed onto an inclined plate in perpendicular to the wind direction.

From the same laws of physics it is known that the component of the resultant force acting not inclined plane of the plate in parallel with the wind direction, will be numerically equal to the product of the resultant multiplied by the sine of the angle made between the wind direction and the inclined plane of the plate. Component of the same power of the wind flow acting on the inclined plane of the plate perpendicular to the wind direction, will be numerically equal to the product of the resultant multiplied by the cosine of the same angle. For example, when the inclination of the plane of the plate to the direction of the response is not more than 10 degrees, share the power of the wind flow acting on the inclined area of the plate in parallel with the wind direction will not exceed 17% of the resultant power of the wind flow. The share of power of the wind flow acting on the inclined plane of the plate perpendicular to the wind direction shall not be less than 98% of the resultant power of this wind flow. On the basis of these acts and created the claimed design primary vetroenergoustanovka, where the role of inclined plates play drive blades mounted on each link of the endless chain.

The invention is illustrated by drawings.

Figure 1 shows one of the plots of the first tier multi-tier bearing structure located between two adjacent vertical supports /1 is not shown/. On this section of the bearing structure mounted in the lower portions of two adjacent shafts PTO, United their belt transmission with common gear pump. Bearing assemblies of the right vertical output shaft shown in section.

Here, between two horizontal beams circulation path overlap 1 reinforced bearing housing 2, within which the ball bearings 3, reinforced connecting shaft 4 which by means of couplings 5 is geared in the e ends of the two parts of the composite vertical output shaft 6. On the outer end parts of the housing 2 by means of ball bearings 7 fortified two swivel housing 8 located on different sides of the circulation path overlap 1. Two swivel housing 8 mounted on opposite ends of the two neighboring layers of the housings 2, but located on the same tier, rigidly interconnected by a crosspiece 9, which are attached to the bearing housing 10 and 14. Bearing housing 10 together with its shaft 11 and fixed on him this wheel hub 12 is fixed in the upper part of the saddle 9, forming together with the bearing housing 14 and fixed on it by the shaft 15, with his two star wheel hub 12 and the bevel gear 16, the rotary device having the opportunity under the force of the wind to rotate around its composite link vertical output shaft at a constant grip of its conical gear 16 with the bevel gear 17 vertical output shaft. The endless chain 13 with their natural blades 18 mounted in a vertical position on two two-star hub 12 and the shafts 11 and 15. The dash-dotted line 19 marked the boundary of the airspace in which they rotate with the chain 13 and the drive blade 18. A thin sheet 20, is fixed in a vertical position between the housings 10 and 14, is designed to obleceni the force of the wind to keep the rotator along the direction of the wind. At the lower end of the vertical shaft PTO fortified pulley 21, belt, serves to drive any of the actuator. Constructive opportunities rotary drive blades allow for the same direction of the wind to rotate its drive shaft in any desired direction. This is the option of using two adjacent vertical shafts PTO to drive common sistrenatus pump 22 and shown in figure 1, where the shafts of the two mating between the gears to rotate in mutually opposite directions. Here the letter "b" denotes any used water.

In figure 2, a side view, presents one possible mounting of two coaxial drive blades 24 on the same rotary axis 23 of each link of the endless chain 13. Its lower jumper paired blades 24 are mechanically attached to the plate 25 welded to the cylinder, a rotary axis 23. This cylinder axis 23 rests on the plane of the frame element 27 of the endless chain 13, and the pivot axis 23 is inserted into the hole of the sleeve 28 attached to the inner side of the frame 27. To the lower end of the axis 23 is rigidly attached to the disk 29, the edge of which is reinforced limiting rotation of the blade 30. The connecting lugs of the frame element 27 includes a removable bushing 31 with improved the durability. Spring 26 links between the sleeve 28 and the disk 29.

Figure 3, a top view, shows the same link of the endless chain, with a fortified it steam drive blade 24 which is mechanically mounted on a welded strap 25, indicated by the dotted line, and connecting the finger 32, the ends of which are designed to engage the teeth of this wheel hub 12.

The greatest effect from the operation of gear pumps, utilization of wind energy, can be obtained by using them as integral parts of the whole energy sector, in which small streams of fluid pumped by such pumps under pressure in the United pipeline system capable of creating in this combined pipeline powerful hydroenergetic capable of powering a turbine with a generator of any desired capacity, which is economically more profitable and more convenient in use than it is now existing in the traditional way.

To identify all positive factors that should occur when the implementation of the present invention, it is necessary to manufacture and test in real conditions the prototype of such energy.

Practical considerations suggest that construction of the primary vetroenergoustanovka should be compact and affordable weight for manual installation in hard to reach for powerful lifting equipment locations, but where winds are strong and frequent winds. Therefore the height of the primary vetroenergoustanovka should not exceed 2 m, and the height of the drive blades should not be much above 0.3 m, so that they can be made of light plastic and with a small thickness of their walls.

When the chain pitch equal to 80 mm, and the thickness of blades equal to 2 mm, the distance between adjacent blades will be equal to 38 mm And so that the energy of the air flow wind blew over the square drive of the blades could be used with maximum efficiency from the whole area of airspace in which the rotating drive of the blade, they must be secured to endless chains at such an angle to the wind direction so that the leading edge of each blade would be with the rear edge of the adjacent blade in a straight line. When the distance between adjacent blades 38 mm, this angle will be equal to 7 degrees 13 minutes. With such a small degree of deflection of the blades from the wind direction may not experience large turbulence of the air at the end of the blade, which would seriously interfere with the proper working closely spaced adjacent such energoproizvoditelej, as is the case in the operation of windmills traditional designs with large propeller diameters. The length of the drive blades non-contact design make the offered chain is taken equal to 300 mm To the interval between the straight sections used endless chains would be minimal because the energy of the air flow within that period is not utilized, the number of teeth on it the hub 12 should be minimal. Take it equal to 6 teeth. Therefore dividing the diameter of each of the ring gear at the hub will be equal to two radii or two steps of the chain, i.e. is equal to 160 mm on the Basis of the received data determined that the length of each straight part of the endless chain will be equal to 1200 mm, which fit 15 sections with a 30-mi blades, and the whole height of the endless chains in working condition will be equal to 1960 mm, containing 36 sections with its 72-driven blades that meets the prerequisites for manual installation and future maintenance without the use of powerful lifting equipment. To the resulting efficiency can be expressed in figures, it will be useful to make a comparative analysis of the figures obtained by calculation to the claimed invention, a passport characteristics of standardized models of wind turbines, see, for example, in a review of information on unconventional energy sources Kiev scientific research Institute of the scientific and technical information for 1989. This overview suggests that the windmills of traditional design with a large diameter propeller is more efficient than wind turbines small diameter of your propeller. At the same time from the same survey and information from many other sources of information, it follows that in places where the wind speed can reach more than 25 m/s, it is acceptable to install wind turbines with a diameter of wind wheel is not more than 7 M. for this reason, comparative analysis, it is possible to make a windmill fashion. Ave-4-6, equipped with a propeller diameter equal to 6.6 m that satisfies the safety requirements for places where the wind speed can exceed 25 m/s At the height of the wind turbine in 9 m tips of the blades of this propeller will reach a height of 12.3 m above the earth surface. When the horizontal position of the blades of this propeller, the distance from its tip to the center of support will be not less than 4.5 m, was to be shunned for such a wind turbine, the land area will be at least 80 m2.

Now you need to determine how much useful energy you can get on the same land area 80 m2at the same wind speed of 9.5 m/s and the wise use of altitude airspace, which reach the tips of the blades of the windmill Ave-4-6, i.e. 12,3 m

For aegopodii first, to determine the cross-sectional area of the air flow, acting on each backslash drive the blade endless chains. Obviously, this area will be equal to the product of the distances concluded between adjacent blades, the height dimension of the blade, i.e. 0,038×0,3=0,0114 m2. Therefore the total area of the air flow acting on all 72 drive the blades will be 0,0114×72=0,82 m2.

From well-known formulas determine the power of the wind acting on one square meter, located perpendicularly to its direction, in which ρ is the average air density equal 1,293 kg/m3and v is the wind speed, hence:

Therefore, the drive power of the one infinite chain with regard to 99% conversion power of the wind flow, at an angle of inclination of the drive blades to the wind direction, equal to 7 degrees and 13 minutes, will be

N=0,5543×0,82×0,99=0,45 kW.

When using the length of the drive blades equal to 300 mm, maximum distance from the center of rotation of the vertical shaft of the power take-off to the most distant from the point of the rotator will not exceed 0.5 m was to be the area of a circle with the same radius fits into the area of a square with sides of 1 m This area is enough to consider it as a work area of one vertical output shaft in the horizon of the flax position. When the distance between adjacent vertical PTO shafts 1.5 m between them will always be safe passage. When installing vertical shaft PTO bearing on multilevel structures in two parallel rows between meter bands work zones need another meter and the width of the passage for the maintenance of the installed equipment. To share the same frequency band in this case we have only half the width of the common passage, and therefore the total area of each layer, attributable to a single vertical PTO will be 2.25 m2. It follows that in an area of 80 m2can be mounted in two parallel rows 80:2,25=35 vertical shaft PTO, which, when listed under equal conditions, is capable of producing useful energy: 0,45×35=of 15.75 kW of power, only one layer of the supporting structure. Therefore, the five tiers of the five-bearing structure that can be constructed using the above-mentioned altitude airspace 12.3 m, can be obtained of 15.75×5=78,75 kW of useful power, without regard to technical friction losses in the bearing assemblies and gears. This 78,75:4=19.7 times more than the standard model windmill Ave.

Creating a new energy, when using the cat is Roy becomes possible when disposing of wind energy to get with each used for energy purposes per square meter of land area 20 times more useful energy than it can do when used for these purposes, traditional petroenergotechnika, will be the first and most important factor that should occur when the implementation of the claimed invention.

Obviously, you should understand how the linear speed of movement of the drive blades is different from the wind speed? For this, we first determined the time required wind at the speed of 9.5 m/s over a distance equal to the length of the drive of the blade, i.e. in 0.3 m

T=0.3 m to 9.5 m/s=0,031 sec.

Obviously, driving the blade during this period of time will move on a straight line at a distance equal to the gap between the blades, i.e. 0,038 m Therefore, its linear velocity is

v=0,038:0,031=1.22 m/s

When dividing the diameter of the side of the sprocket hub 12, is equal to 160 mm, and the length of its circumference, equal 502,4 mm, the rotation speed of this two-star hub together with its shaft will be 1.22 m/s:0,5024 m=2,428 about=to 145.7 rpm

Although this speed is not suitable for direct drive of the shaft of the generator, especially low power, but it is quite suitable for the drive gear pumps with their p is increased capacity, they provide two adjacent vertical output shaft, as shown in figure 1. It is very convenient when such gear pumps are design and energy complex, as its constituent elements. The emergence of such a possibility and should be considered the second positive factor in the implementation of the claimed invention.

Note for all those interested! High performance gear pumps at low speeds of rotation of the drive shafts is achieved due to the increased size of the teeth of the gearing of his working gear pair. However, for the manufacture of such gears with involute profile of the gear teeth need special and powerful gear cutting machines together with special and complicated to manufacture subarashii tools that increases the cost of manufacturing such krupnooptovyh gears.

The author of the present invention has its own design gear pump with a different profile of the teeth of gear that allows you to make such gear with a wide range of sizes of large teeth on them, using only conventional lathes and boring machines. The author, as a professional practitioner with many years of industrial work experience in the field of metal known and technologists who manufacture such krupnooptovyh gears.

Design features of the links of the endless chains, the method of fastening them drive blades inclined to the wind direction position and the ability to samoregulirovanie acting on them, wind power should be considered as emerging third positive factor in the implementation of the claimed invention.

Small dimensions of the individual parts and components and their small weight, it can be mounted further technically serve, without the need of using a powerful lifting equipment, and inconvenient to transport land. This will be the fourth positive factor arising from the implementation of the claimed invention.

The same small size and simple design of the individual components of the primary vetroenergoustanovka create favorable conditions for the serial production in the conditions of not only secondary, but also small business machine direction. When creating a powerful energy complexes have something to do and big business. This will be the fifth positive factor arising from the implementation of the claimed invention.

Low speed working bodies of the wind energy installation, in combination with small moving parts can cause a great deal of noise, as is the case with the traditional windwheels. For the same when the Inam operating wind energy cannot be created or large interference in the reception of TV programs. Due to the same factors provides a secure way of finding people and animals near operating wind energy even in high winds.

1. Wind power installation, comprising a multi-tiered load-bearing structure mounted on it a series of vertical shafts PTO, each of which is kinematically connected group of primary vetroenergoustanovka mounted tiers on their rotary devices near its vertical output shaft, characterized in that the vertical PTO shafts consist of separate parts joined together using couplings and intermediate shaft fixed in a bearing unit circulation path overlap, and each mating with a vertical shaft primary vetroenergoustanovka is an endless chain mounted on the sprockets of the two, horizontally mounted on the rotary device in bearing assemblies shafts, one end of which is connected with a vertical PTO shaft through bevel gears.

2. Wind power installation according to claim 1, characterized in that the outer side of each link of the endless chain and perpendicular to the external plane fixed on the rotary axis of the drive arm presses the spring to jesd the mu fence, limiting the angle of rotation of the blade, and the distance from its leading edge facing into the wind, to its rotary axis less than the distance from the rotary axis to the rear edge of the blade.



 

Same patents:

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SUBSTANCE: proposed plant has base in the form of catamaran that mounts current generators and their drive, current parameters stabilizing system, turbine capable of running in fully submerged condition, and its hoist. Turbine is made in the form of belt conveyer installed on edge at certain angle to river stream. Blades made of flexible material are secured throughout entire width and length of belt. Each blade is made in the form of bucket capable of folding and resting on belt during transfer from working to idle side of conveyer, and it has pocket on external surface for automatic raising of blade by river stream during transfer from idle to working position. Turbine hoist has rocker arm for turbine suspension hinged on one end to catamaran and on other end, to turbine frame that mounts generator-drive bevel gear so that longitudinal axes of hoist rocker-arm hinges and longitudinal axis of bevel-gear driven pinion are disposed on same line. In addition, hydroelectric power plant is equipped with device enabling variation of turbine angle of installation to water flow.

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Wind power plant // 2298684

FIELD: wind power engineering.

SUBSTANCE: wind power plant comprises multi-row load-bearing structure provided with the group of vertical take-off shafts. Each of the shafts is kinematically connected with the group of primary wind power converters mounted in rows on the rotating devices near the vertical shaft. The take-off shafts are made of individual links interconnected through couplings and intermediate shaft set in the berating unit provided in the inter-row cross-piece. Each primary converter is made of endless chain mounted on two sprockets horizontally secured to the rotating devices in the bearing units of the shafts whose one end is connected with the vertical take-off shaft through a conical gear.

EFFECT: enhanced efficiency.

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2 cl, 3 dwg

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EFFECT: improved effectiveness of device, simple structure and operation, wade range of application.

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