RU181671U1 - COMBINED ADJUSTABLE WIND ENGINE - Google Patents

Abstract

Combined adjustable wind turbine refers to wind energy and can be used in various industries to provide clean energy. The proposed device is an apparatus with a vertically arranged rotor around which tangential confuser nozzles are located. The number of confuser nozzles is even and they are interlocked in pairs with opposite radial segments. Each nozzle has a movable shutter in a narrow part of the confuser and the position of the shutters is controlled together with each pair of nozzles, and the position of the shutters is controlled by rotating the gear corresponding to each pair of nozzles and moving the gear racks connected to the pair of shutters through the hydraulic booster. The control gears are located on the vane shaft passing inside the rotor shaft. The tangential walls of the rotor have an aerodynamic profile, and each movable flap has guide grooves. Thus, when controlling the dampers, a more complete use of the wind flow entering the cavity of the apparatus is achieved, as a result of which the efficiency of the wind turbine is increased. 4 s.p. f-ly, 5 ill.

Description

Combined adjustable wind turbine. The utility model relates to wind energy and can be used in wind turbines to provide energy to various consumers. Known wind turbines with a vertical rotor and placed around the entire circumference of the rotor inlet tangentially located confuser nozzles (see AS No. 408049 bul. No. 47. from 10. XII. 1973). In this device, an incoming air stream flowing into the confusor nozzles on the windward side spins the rotor and, after doing this useful work, the air flow flows through the nozzles on the leeward side. Partially, through the open upper space, above the rotor.

To increase KPD wind turbine, an additional impeller wheel with inclined blades is installed in the upper part of the rotor (see No. 136100, bull. No. 36 dated 12/27/2013), to increase KPD an aerodynamic propeller is installed above the impeller. The known combined wind turbine also comprises a wind wheel mounted on a vertical hollow shaft and confuser nozzles.

This device is taken by us as a prototype. The disadvantage of the prototype: low efficiency (KPD), due to the fact that a significant part of the air flow with kinetic energy flows through the nozzles on the leeward side and is not used in the work.

The technical problem is the low efficiency.

The technical result aimed at solving this problem is to increase KPD due to a more complete use of the available power of the wind flow with regulation depending on the direction of the wind front.

The technical result is achieved by the fact that the combined adjustable wind turbine for wind power plants, containing tangentially located confuser nozzles with adjustable shutters in a narrow section and a vertically located rotor, is made with an even number of confuser nozzles and the position of the shutters is controlled by the position of the rack connected via a power steering with a gear located on the shaft of the weather vane located inside the rotor shaft, and each pair of dampers located in a radially opposite field zhnyh nozzles corresponds to a different gear with the rack and booster. The tangential walls of the confuser nozzles have an aerodynamic profile, and each movable shutter has guide grooves.

The proposed device is presented on

FIG. 1 - general view;

FIG. 2-cross section;

FIG. 3 - the location of the control gears on the shaft of the wind vane;

FIG. 4 - hydraulic control circuit;

FIG. 5 is a kinematic diagram of the movement of the shutters.

Here:

1 - base;

2 - confuser nozzle,

3 - Savonius rotor,

4 - movable damper

5 - the main shaft,

6 - paddle wheel,

7 - aerodynamic propeller,

8 - weather vane,

9 - rod weather vane,

10 - control shaft,

11 - the upper bearing of the control shaft,

12 - the upper bearing of the main shaft,

13 - casing,

14 - disk

15 - the lower bearing of the main shaft,

16 - pulley

17 - gear racks,

18 - gears,

19 - the lower bearing of the control shaft,

20 - groove guiding the flaps,

21 - a hydraulic cylinder,

22 - spring

23 - power steering,

24 - a hydraulic cylinder of a gear rack.

The proposed device is the following design. On the base 1 there is a main shaft 5, made hollow, inside which there is a control shaft 10. On the shaft 5 there is a Savonius rotor 3 mounted on the disk 14. Around the Savonius rotor 3 is located, a confuser nozzle 2 formed by a radial - 2p,

tangential 2 t side walls and two upper 2b and lower 2n walls that form a confuser channel located tangentially to the axis of rotation of the Savonius rotor 3. On the side tangential wall 2 t there is a movable damper 4, which can move in the guide groove 20. Movable damper 4 has a spring 22 and is connected to the rod of the hydraulic cylinder 21, which is connected hydraulically to the hydraulic booster 23. On the main shaft 5 above the Savonius rotor is a blade wheel 6, over which an aerodynamic propeller is installed 7. The main shaft 5 rotates in bearings 12 and 15. Inside the main shaft 5 passes the control shaft 10, rotating in bearings 11 and 19. On the shaft 5 there is a pulley 16 for the removal of the removed power to the consumer. In the upper part of the shaft 10 there is a rod 9 with a weather vane 8. In the lower part of the shaft 10 there are gears 18, the number of which is equal to the number of pairs of blocked nozzles of the hubs 2. Each gear 18 has a gear rack 17 that are connected to the hydraulic boosters 23 and through hydraulic cylinders 21 act on the shutter 4.

The device works as follows: the incoming air flow enters several windows located on the windward side. In accordance with the direction of the wind, the rod 9 with the weather vane 8 is rotated, as a result of which the control shaft 10 is rotated. The gear wheels 18 located on the shaft 10 are rotated, moving the gear racks 17 engaged with them, the movement of the racks 17 acts on the hydraulic pistons 23 and through the hydraulic cylinders 21 act on the shutter 4. Each gear 18 is engaged with two gear racks 17 located diametrically opposite to each other, so they move in mutually opposite false directions. In the same way, in the opposite directions, the pistons of the hydraulic boosters 23 are exposed and through the hydraulic cylinders 21 to the shutters 4. Since the confuser nozzles 2 are pairwise blocked with the opposite radial segment and each gear 18 and gear racks 17 control each pair of shutters 4, then the action with each pair of dampers, but with the opposite sign: one damper completely opens the nozzle channel (on the windward side), and the other damper completely closes the nozzle channel (on the leeward side Oron). Moreover, the flaps related to the side channels (with respect to the direction of the wind) occupy an intermediate position. Since the air flow flowing from the leeward nozzles is significantly reduced, a significant part of the air spins the Savonius rotor and the impeller 6 and the power on the shaft 5 increases significantly and the removed energy from the pulley 16 increases.

In the event of a change in the direction of the wind, the rod 9 with the weather vane 8 rotates, causing the control shaft 10 to rotate, according to which the gears 18 change their position by moving the corresponding gear racks 17, and accordingly the flaps 4. Therefore, for any wind direction, one pair of confuser nozzles it will definitely correspond to the air flow direction vector and the damper on the directed side will be fully open, and on the leeward side it will be completely closed. Such a more complete use of the wind flow will increase KPD installation.

Claims (3)

1. A combined adjustable wind turbine for wind power plants, containing tangentially located confuser nozzles with adjustable shutters in a narrow section and a vertically located rotor, characterized in that the device is made with an even number of confuser nozzles and the position of the shutters is controlled by the position of the rack connected via a hydraulic booster with gear, located on the vane shaft located inside the rotor shaft, and each pair of dampers located in radially opposite chopping block, corresponds to its own gear with rack and power steering. 2. The combined adjustable wind turbine according to claim 1, characterized in that the tangential walls of the confuser nozzles have an aerodynamic profile. 3. The combined adjustable wind turbine according to claim 1, characterized in that each movable shutter has guide grooves.

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