RU2272172C2 - High-power wind-energy plant equipped with pyramidal-type wind motor - Google Patents

Abstract

FIELD: wind-power engineering; high-power wind-energy plants.

SUBSTANCE: proposed wind-energy plant includes pyramidal-type wind motor with vertical axle and blades secured in two tiers around vertical axle; three edges of blades of lower tier are supported by three bearing ends of rigid three-dimensional trusses through shock-absorbing and stabilization system forming bearing unit in central part; vertical axle is made in form of tube through which steel studs fastening the blades run; axle with studs is embedded in concrete; framework of blades consists of three-dimensional trusses and tubular and angle members.

EFFECT: extended functional capabilities; increased power.

3 cl, 3 dwg

Description

The invention relates to wind energy and relates to wind power plants with a large in a single copy (unit) power. It should be included in the developed group of inventions, which includes the following technical solutions: “Pyramidal wind engine” with a vertical axis with pyramid blades, the axis being directly connected to the bearing block, which determines the engine’s working capacity within 15-20 kW (see RU 2248463 C1, publ. March 20, 2005), “Device for limiting the speed of a pyramidal wind engine” (see RU 2003130043 A, publ. 10.04.2005), “Device of a support unit for a pyramidal wind engine”, which allows to increase engine power about 110 kW due to the creation of a static moment (“Archimedes lever”) due to the device of consoles and support on them at three points (see RU 2003131661 A, publ. 10.04.2005), “Device for damping shocks of a wind power installation” (see RU 2003128919 A, publ. March 20, 2005).

To obtain unit capacities of 150, 600, 1000 and 10.000 kW, it will be necessary to implement certain design solutions. In particular, it is necessary to unload the lower bearing block, and the three ends of the cantilever part must rest on the chassis on a rubber track or on wheelsets, as in railway cars, and this should move accordingly on an asphalt concrete coating or on a circular rail track (Fig. 1, 2 )

An analogue of the invention (prototype) wind power installation containing a pyramidal wind turbine with a vertical axis of rotation and blades, is FR 2418996 A, CL. F 03 D 3/00, 02/02/1979.

The technical result consists in expanding the range and functionality of the installation, as well as in increasing the power, and is ensured due to the fact that in a wind power installation containing a pyramidal wind engine (LDPE) with a vertical axis and blades, according to the invention, the blades are fixed around a vertical axis in two tiers, and the three edges of the lower tier blades through the damping and stabilization system are based on three supporting ends of rigid spatial trusses converging in the central part in the bearing-bearing kovy unit, the vertical axis represents a pipe through which the cavity tested steel pins, blades fastening together, wherein the axis of pins zamonolichivaetsya inside the concrete, and the blades consist of rigid cages dimensional trusses and tubular-cube corner elements. Each of the pyramids-blades of the second tier rests on a beam that simultaneously fastens the lower tier blades together, the fastening of the blades of the second tier in the upper part is carried out using ropes and tubular-corner elements, which, in turn, are equipped with a rope with a spacer, forming a truss, This rope has an automatic tensioning system, which includes fixed blocks, a cable and a load compensator. The supporting ends of the trusses are supported through their end part on the chassis: rubber, pneumatic or steel, when resting on a railway trolley moving along an annular rail track.

Figure 1 shows a wind power installation (General view);

figure 2 shows the end part of the supporting ends of the trusses installed on the annular rail track;

figure 3 shows a view aa of figure 2.

The wind power installation contains the following elements: the supporting ends 1 of the rigid spatial trusses 21 are supported by the depreciation and stabilization system 2 on the end part 3, and it, in turn, on the railway carriage 4, which moves along the ring rail 5. This steel track as one of the possible options: it may also be wheeled, rubber and pneumatic.

The end part 3 is a part of the support unit 6, which is described in the application under the name "Device support unit for LDPE." Only in this application, as an example, it is shown that the APU (wind power installation) can propel the propeller 7 of a watercraft, for smooth starting and smooth acceleration of which a hydraulic coupling or torque converter 8 is used.

Three spatial trusses 21 in the central part converge, forming a node 9, on which the axis of the LDPE 10 rests, to which, in turn, pyramidal blades 11 are attached sideways to one of the sides of their bases. The geometric principles of these blades are given in application No. 2003107582/06 called "Pyramidal Wind Turbine." Axis 10 is a pipe, it can be several tens of meters long, of relatively small diameter and small wall thickness. In fact, its function is persistent, not supportive. Steel studs pass through its cavity, which hold the blades 11 together in the desired geometric position. The studs press them well against the axis 14, and the nuts are welded to prevent weakening of their action. Inside the tubular axis 10, reinforcement is formed due to the passing studs. Its lower part is drowned out, and concrete is poured through the upper part, which, having solidified, will make the entire system monolithic.

As can be seen in figure 1, the frame of each of the six pyramidal blades 11 consists of spatial trusses 12, 21, 22 and tubular-corner elements 13. This allows you to make the design of the blades 11 reliable, non-metallic and simple.

Tubular-corner elements 13 (in figure 1 they are shown in the form of three lines that are often crossed out) are pipes of small diameter (3/4 inch or 4 inch), which are covered by two corners, above and below (only the corners between themselves are not touch) and are compressed either by tightly fitting clamps or by tightly wound stainless steel wires. A system is formed that is able to withstand significant loads and at the same time slightly change its geometric shape, i.e. for many meters it only sagged slightly. Separately, both the pipe and the corner 10 meters long give a very noticeable sag and are fragile. By combining them, you can achieve such an effect, as, for example, in reinforced concrete structures, where reinforcement made of iron and concrete mortar, combined together, formed the basis of the modern construction industry.

Both the pipe joints and the corner joints in the proposed design are well-boiled. However, when superimposed on each other, they should not coincide. The places of application in the corners should be cut so that they can fit tightly to the pipes and their welds would not interfere with this. At the ends of the tubular-corner elements 13, holes are made through a corner - a pipe - a corner for a clamp of an appropriate size, or a corner - a pipe - a corner under a press are flattened, then the necessary holes are made. It is clear that these elements are connected to each other during construction and installation works by mounting clamps.

In General, due to the tubular-corner elements 13 can be made the frame of the hollow part of the pyramidal blades 11. Then it is repeated with wooden blocks attached to it with clamps or a tight-fitting stainless wire. As the hollow part of the blades 11, and the outer, i.e. on both sides, sheathed with plastic (lining or sheets). There should be no protrusions or distortions anywhere. The wind stream should easily, without resistance, slide off over the protruding parts of the blades 11 and also easily leave their hollow parts. In this sense, plastic is the best tool in the fight against “parasitic” aerodynamic drags when moving LDPE in an air turbulent flow.

The second tier of LDPE virtually eliminates the “dead center”, which can be observed with a single-tier structure. It also improves the traction characteristics of the wind turbine. In their lower part, each of the pyramids-blades 11 rest on a beam (truss) 14, which simultaneously holds together the blades 11 of the lower tier. In the upper part of the blade 11 of the second tier are fastened by means of ropes 15 and tubular-corner elements 16, which, in turn, are provided with a strut 17 for their reinforcement, which forms a truss of a simplified design with its strength and rigidity, the length of which can reach several tens meters. In this sense, it is also necessary that the rope 15, so that it effectively fulfills its purpose (helps the beam 14), provide an automatic tensioning circuit, which includes the fixed blocks 18, the cable 19 and the load compensator 20.

Circular rail 5 due to its curvature can have many joints. They are usually made straight. This creates a knock (noise) when passing wheelsets through them. But if the joints are made oblique, i.e. when the wheel has not yet left the rail, but is already on the second, the unwanted noise will be much less and the path-wheel system will also wear out less and the temperature joint will remain.

Powerful APUs based on the chassis (rubber, pneumatic or steel) should be located on the ground (in the middle of a field or on a hill), where the winds are free from interference due to terrain or artificial structures. They can also be located on floating platforms or ships, which will not only be provided with electricity, but even be able to propel their propellers, although it is better to use the APU system - generator - an electric motor that drives the propeller.

On the flat roofs of workshops of enterprises, residential buildings and between floors in the through ventilation corridors of high-rise buildings, their installation is also possible. Noise effects can be minimized, to the noise from the operation of elevators in a residential building, due to appropriate design studies and sound-absorbing elements, such as rubber gaskets, shock absorbing devices.

Claims (3)

1. Wind power installation containing a pyramidal wind turbine with a vertical axis and blades, characterized in that the blades are fixed around the vertical axis in two tiers, and the three edges of the blades of the lower tier through the damping and stabilization system rest on three supporting ends of rigid spatial trusses converging in the central part into the bearing block, the vertical axis is a pipe through which steel studs pass through the cavity, holding the blades together, while the axis with the locks lichivaetsya inside the concrete, and the blades consist of rigid cages dimensional trusses and tubular-cube corner elements. 2. Wind power installation according to claim 1, characterized in that each of the pyramids of the blades of the second tier rests on a beam that simultaneously fastens the blades of the lower tier together, the fastening of the blades of the second tier and the upper part is carried out by means of ropes and tubular-corner elements, which, in turn, equipped with a rope with a spacer, forming a truss, while the rope has an automatic tensioning system, which includes fixed blocks, a cable and a load compensator. 3. Wind power installation according to claim 1, characterized in that the supporting ends of the trusses are supported through their end part on the chassis: rubber, pneumatic or steel, when supported by a railway carriage moving along an annular rail track.

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