Blade for low-speed turbines (versions)

FIELD: engines and pumps.

SUBSTANCE: invention refers to low speed turbine mechanisms for liquid or air medium, for generation of electric energy. Blade for low speed turbines, which carries the load from medium flow and transmits it to power mechanisms, is rigid and consists of two different arms and axial bushing installed with possibility of blade rotation at the pressure thereon of medium flow in operating position or automatic folding of the blade at relief of flow pressure when the blade gets into counter-flow. Large arm is made so that it carries the power load of flow. Smaller arm is supporting at operating position. Blade is equipped with separate replaceable element to which there attached is axial bushing and rotating elastic roller attached in the axis to external edge of the blade.

EFFECT: increasing the efficiency of energy relief of water stream and increasing the efficiency of the whole plant.

2 cl, 5 dwg

 

The invention relates to the field of low-speed turbine mechanisms for liquid or air, to produce electrical energy.

There are devices where the blades are mostly still attached to the axial bushings or working surface of the rotating mechanism and transmit the force to the thread on the shaft, through which then the rotational force is transmitted to the power generator or power mechanism. This device were the mills, water wheels, air propeller screws wind or water pumps, vane screw turbines etc. (FR 537685 AND F03 9/00, 27.05.1922).

The prototype of the claimed device can serve as a tissue blade podocarpa and windmills, hard blades of turbines for mini-hydro type NI Lineva, patent RU 2166664 C1.

The disadvantage of fixed blades is involuntary exposure to flow and the braking mechanism when the contact blades in the "shadow" zone or in the zone counter current, which dramatically reduces the efficiency of the mechanism. So I used reverse mechanisms for the orientation of the blades and propeller blades on the turbines, and wind mechanisms, i.e. the blade takes this position to fully utilise the power flow, and getting in shadow (not working) zone, or develops, or takes the neutral position to the flow, thus increase the receiving capacity of the whole mechanism. But in order to fulfil all this requires special and complex support mechanisms or entire devices, or any devices that though and increase efficiency, but it is much more expensive in General the product, make it difficult to operate, repair and maintenance, reduced reliability. The movable blade has a support device, which also increase the resistance in the counter-current (DE 19818549 A1, F03B 9/00, 11.11.1999).

The disadvantage of the prototype is that these blades have a separate support bar vertically and rigidly fixed on the surface of the turbine, in the form of an endless belt, hinged longitudinal node, and the movable blade has its turning point, which complicates the fastening system and increase the weight of the entire turbine mechanism. While fixing both types of blades should be positioned across the width of the surface of the rotating turbine in the form of an endless belt. In the inventive device, the blade can be secured in any order, including chess, and supporting and rotating the nodes are concentrated at the lower edges of the blades, and in the folded position, there is almost no resistance in counterflow, i.e. a device with such blades can be used in loading under the water condition. In addition, in the inventive device the blades, vanes and pockets that can be attached to the removable items, and they in their turn is placed on the surface of the turbine, including the endless belt.

The objective of the invention is to increase the efficiency of removing the energy of water flow and increase efficiency of the whole plant.

The invention consists in that the speed turbine blade for receiving the load from the stream environment and transmits its energy to the arrangements made hard from two different size shoulders, with big shoulder made receptive power load flow, and a lower shoulder of the support in the working position, and an axial sleeve that is installed with the possibility of rotation of the blades when the pressure of the flow medium in the working position or the automatic folding blades when removing the pressure flow or contact blades in a counter-current, the blade is provided with a separate removable element is attached to the axial sleeve, and rotatable elastic roller attached to axis to the outer end of the scapula.

Blade for speed turbine receiving the load from the flow stream and transmitting its energy mechanisms, made of elastic material in the form of a pocket, open side which is directed against the flow, the blade is provided with a separate removable element that hosts the pocket, made of fabric, and a rotatable elastic roller attached on the axis to the top edge of the pocket, providing it is escrita.

The invention is illustrated by drawings, where:

Figure 1 - side view on the hard shoulder, attached to the arc plane of the turbine or to the endless belt.

Figure 2. - view the operating position of the rigid blade, such as an endless belt.

Figure 3. - side view of the elastic blade, in the form of a tissue pocket in the working position, attached to the endless belt.

Figure 4. - elastic blade, in the form of a pocket, placed on removable element.

Figure 5. - folded blade in the area of counter-current, passing from above.

Fixed movable rigid and flexible (fabric) blades may, for example, turbines drum for hydro power plants and wind farms, tape turbines, horizontal blade turbines for deep and surface currents of the seas and rivers, as well as for air flow, at any position of the axis of rotation. These turbines, of course, "soft", but efforts on the shaft of the generator, due to the torque they convey large than their counterparts and do not create harmful to flora and fauna ultrasonic and vibration.

Blades for low speed turbines, changing its position under the action of flow, work as follows: work plane blade 1 (figure 4, 5), soft or hard, can be an individual field replaceable unit (3, 4, 5)placed in his nest, where he works independently, adequately responding to the conditions of flow with the food, air or water. When turning the blade 1, in the form of the pocket (Fig 3, 4), the working party to the stream fabric pocket with torque float elastic roller 7, is placed at the front edge, is inflated under pressure to flow through your mount acts on the plane of the mechanism, which establishes a replaceable element. Placed the hard shoulder, or in the form of pockets on removable elements in series across the working plane, or in a checkerboard pattern, and when placed on a narrow endless belt each other. After turning the turbine or tape with blades, hard or in the form of pockets, a shadow zone in counter-current, soft (fabric) shovel crushed from the force of the jet stream, and hard to fold, reducing the flow resistance to a minimum (1, 5).

Hard blade 1 is working plane of the settlement amount and the necessary material according to the purpose of the entire product and operating conditions, and support short levers 2, placed at the lower edges of the blades, which rotate on axes 4, in the bearings 5 mounted on the ribbon. Hard blade freely rotates on axis 4 (around 80-90 from the side of the head), which is fixed in bearings 5 on the working surface of the turbine 6, and the angle is determined by a lever in the form of segment 3 short arm 2 with the supporting heel. The axle 4 is fixed in bearings 5 on the working surface the particular turbine or an endless belt. On the upper free edge of the blade on an axis 8 (Fig 1, 2, 5) placed rotating float elastic rollers 7, if the blade is used in water, which contribute to the rapid disclosure of the scapula, in the form of a pocket or hard shoulder.

Flexible (fabric) blade 1 in the form of the pocket (Fig 3, 4) mounted on a removable element, and that in turn is mounted on the working surface of the turbine 6 in the form of a cylinder or an endless belt (figure 3, 4, 5). The blade 1 in the form of a pocket fastened with three sides, the fourth side is disclosed for receiving flow of the medium, in this case, if the elastic blade 1 in the form of the pocket (Fig 3, 4) running in the water, at the edge of the pocket is closed up tight thread turns into the axle 8 on which is mounted a rotating float elastic roller 7, not giving a tight seal against the working surface of the turbine 6 in a counter, and contributes to the rapid filling of the elastic blade 1, or in the form of a pocket, the flow of water in the working area. When the blades rigid and in the form of pockets, the air flow rotating float elastic roller 7 is excluded.

The proposed scheme of the blades, and hard, and elastic, devoid or almost devoid of many drawbacks. They are not only self-correcting under the power and direction of flow, but exclude special device for orientation of the entire product or mechanism of the turbine relative to the modify the direction and force of stream, and independently formed in the shadow area or in the opposite stream, i.e. the kinematic relation is simplified to a minimum. The apparent simplicity of their construction, mounting to the turbines, replacement, repair and operation, getting the maximum power from the flow of water or air, they are versatile for use in two environments (almost without alteration) and the directions of flows. All these features increase the reliability, the durability of the working mechanism turbines and power generators per unit area of the effects of flows on the blades, and naturally reduces dramatically the cost of the entire unit and cost per unit of energy produced. The main cost of microprolactinomas (up to 100 kW) with the proposed blades to account for the cost of the generator, i.e. up to 80%, and mini-power plants (1000 kW) up to 60%, both for Heroes and Vetoes.

The technical result of the invention consists in that the blade is easy to manufacture, reliable fasteners, modified, make the shape and position of the stream (passive and working position). Durability depends on the choice of material (up to the modern carbon tissue). Blades universal as for hydro turbines and wind turbines almost without changing designs or with minor changes and additions, unless the size of the market play a role in their use for different shape and capacity mechanisms turbines. From the simplicity of manufacture and the form of blades, respectively, it is possible to simplicity and reliability of power plants.

1. Blade for speed turbine receiving the load from the stream environment and transmits its energy to the arrangements made hard from two different size shoulders, with big shoulder made receptive power load flow, and a lower shoulder of the support in the working position, and an axial sleeve that is installed with the possibility of rotation of the blades when the pressure of the flow medium in the working position or the automatic folding blades when removing the pressure flow or contact blades in a counter-current, characterized in that the blade is provided with a separate removable element is attached to the axial sleeve and rotatable elastic roller attached on the axis to the outer end the scapula.

2. Blade for speed turbine receiving the load from the flow stream and transmitting its energy mechanisms, made of elastic material in the form of a pocket, open side which is directed against the flow, characterized in that the blade is provided with a separate removable element that hosts the pocket, made of fabric and rotatable elastic roller attached on the axis to the top edge of the pocket, ensuring its erection.



 

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11 dwg

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