DE2521588A1 - Wind driven power unit with vertical air riser tube - has additional impeller on top with two or more contrarotating rotors - Google Patents

Abstract

The wind-driven power unit is of the type as described in 2402647. Near the upper end of the vertical tube (1), an additional impeller (2) transmits power to the drivers shaft (4). The impeller may comprise two or more contra-rotating rotors. A further impeller may be provided inside the tube and may be a turbine rotor surrounded by a stationary stator blade assembly. The tube may be in a heat conducting material with means to beat the air contained in it. The heating means may consist of sunlight reflector plates (6) and the tube may have orifices with lenses (5) to concentrate the sun rays on to the plates.

Description

Large wind power plant The invention relates to a large wind power plant, in which the wind turbine is in a tube mounted in a horizontal slewing ring, whose Inlet opening is adjustable according to the wind direction, is arranged.

The invention relates in particular to a wind turbine according to the main patent P 2402 6ru? .9, in which the vertically extending tube next to a lower Main air inlet opening in an ejector-like attachment arranged at the upper end has a second air inlet opening. There are both air inlet openings independently adjustable according to the wind direction, disadvantage of such It is wind power plants that a certain speed must be present so they can work. With the system according to the main patent, this disadvantage is reduced by a second eäektorlike on the first air flow acting air flow, the response speed is lower and thus also the Operating time is increased.

The aim of the present invention is to improve the performance of such systems to improve even further, so that they can be used even at lower wind speeds and, if necessary, work temporarily even in the absence of wind. This becomes a continuous Operation at least temporarily enabled. It is then a mixed use in the way possible that predominantly a direct current output takes place, while a Storage only for peak demand or for periods of long periods of calm got to.

This reduces the construction and operating costs of the entire system, in particular of the storage facilities.

Furthermore, the start-up frequency is reduced, and thus the associated occurring high beer run losses.

To solve this problem, the invention proposes various measures that serve to increase the buoyancy inside the vertical tube. It For example, an additional, specially designed wind turbine to increase the ejector effect intended. On the other hand, a guide ring is arranged around the wind turbine in the tube, which ensures more favorable flow conditions in the tube, and ultimately becomes by heating, preferably by solar energy, the buoyancy in the tube elevated.

In detail, the invention looks up - especially in the case of the plant Main patent - the following measures: The vertical tube should be made of thermally conductive Material, e.g. made of black coated copper plates from the outside. In the area of the upper end of the vertical tube, a drive shaft is attached Acting additional wind turbine, which possibly has two or more rotors rotating in opposite directions having, arranged. The piles of this additional wind turbine can be attached to the outer The ends are weighted down by weights, so that the operating time is reduced by the degree of swelling increases. According to the invention can also be arranged in the vertical tube Windra designed like a turbine wheel and surrounded by a stationary guide ring be. Furthermore, according to the invention, the air inside the tube should be warmed up, so that there is a heat lift. To use solar energy for amplification the heating of the air in the tube can be arranged around the outer wall of the tube, e.g. semicircular sunlight reflectors that warm up the heat-conducting outer wall to be ordered. The heat is then transferred from the outer wall to the interior of the tube passed on.

According to the invention, however, can also through openings in the outer wall Focal lenses that work through according to the position of the sun - in the wreath arranged - provided that plates mounted inside the tube, e.g. Copper plates, heat. Furthermore, the lower end of the tube can be up to 50 meters be arranged below the surface of the earth. This results in a higher column of air inside the tube, so that there are differences in air pressure between outside and inside and there is a buoyancy effect below and above. At times less favorable Weather conditions, E.g. to bridge complete calm, a temporarily switched on heating can preferably be mounted inside the tube. It can also be on the inner wall the tube may be fitted with pipes through which a heating medium flows.

This additional heating can be part of an existing thermal power plant for temporarily fossil fuel operation. A so-called wind furnace is then created.

The drawing shows embodiments of the new system.

Figure 1 shows schematically in vertical section details of the system according to main patent.

Figure la shows the arrangement of the additional wind turbine enlarged.

Figure 1b shows a possible arrangement of reflectors for utilizing solar heat.

Figure 2 shows in vertical section a further embodiment of the Tube according to main patent0 Figures 2a and 2b show sections according to the arrow line a - a in Fig. 2.

With 1 in the drawings, the outer wall of the tube, which is made of thermally conductive Material, e.g. coated copper plates, is indicated0 The additional Wind turbine 2 in FIG. 1 shows additional weights hatched at the outer ends.

With 3 a spring arrangement is shown in Figure 1a, which when there is no wind brings the zisytzliche wind turbine 2 out of attack of the output shaft 4./MEt 5 are rings around the outer wall 1 referred to arranged focal lenses, which the plates 6 in the pipe interior heat0 With 7 the additional heating device is referred to.

With 8 in Figure 2 is the wind turbine, not shown in Figure 1 in Inside the tube. A guide ring 9 is arranged around this wind turbine. in the The lower area of FIG. 2 is the lower air inlet opening arranged below the surface of the earth indicated, in order to direct the outside air there in a known manner guide devices In the upper part, Figure 2 shows a possible design of the så ectors.

Q: You can turn the spring on or off as you wish, so that the additional wind turbine only acts as a flywheel on the equipment and in windy conditions gives additional strength.

Claims (1)

Claims iX wind power plant, in particular according to patent 2402647.o, characterized in that that in the area of the upper end of the vertical tube (1) on the output shaft (4) Acting additional pin wheel (2), vgf. with two or more counterparts Arranges rotors is. 2o wind turbine, in particular according to patent 2402647.9, thereby gekennze chnet that the in the vertical tube (1) arranged wind turbine (8) as is formed by a stationary guide ring (9) enclosed turbine wheel. 3o wind power plants, in particular according to patent 2402647.9, characterized in that that the air inside the vertical tube, the outer wall of which is made of thermally conductive material is created, is warmed up. 4. Plant according to claim 3, characterized gekennzeicnnet that the warming up the thermally conductive outer wall of the tube is reinforced by around the outer wall of the Sunlight reflectors arranged in a tube, e.g. semicircular, warming the outer wall. 5. Plant according to claim 3 or 4, characterized in that the Heating of acting through openings in the outer wall, according to the Sun position adjustable focal lenses (5), which are attached inside the tube Plates (6), e.g. copper plates, are heated. 6. Plant according to one of claims 3 to 5, characterized in that that the lower end of the tube is located up to 50 meters below the surface of the earth is. 7. Plant according to claim 1, characterized in that the wings of the wind turbine (2) are weighted at the outer ends. 8o system according to one of claims 3 to 6, characterized in that that on the inner wall of the tube, optionally flowed through by a heating means, arranged tubes are. L e r s e i t e