ES2456825A1 - Turbine comprising lenticular disks - Google Patents

Abstract

The invention relates to a turbine such as a reaction turbine that can operate with a liquid or gas fluid. The runner of the turbine is provided with the following elements: the shaft (2), which operates normally in a vertical position, a coupling flange (1) being installed in the upper part and a hub (5) or supporting hub flange being installed in the lower part at least one disk (3), which has a convex-planar-lens-type cross-section, and has three blades (6) in the upper part thereof that form angles of 120 DEG and are coupled to the shaft (2) by means of a cotter and aerodynamic profiles (4), the disks being reinforced on the periphery thereof by two aerodynamic profiles, separated by an angle of 180 DEG . The calculation formula: Preal = 1/2 [eta]t [rho] n S V3 Preal = useful power [eta]t = total yield n = number of disks S = swept area V = speed of the fluid.

Description

Detailed description of the invention

The impeller of the turbine is equipped with the following elements:

The shaft (2). It works normally in an upright position; In the upper part, a coupling flange (1) is installed and in the lower part a bushing (5).

The disc (3) .The section of the disc is convex flat lens. At the top, three blades (6) are carved, forming 120 ° angles. They are coupled to the shaft (2) with a key, to prevent slippage. The number of discs can be one or several, depending on the working conditions.

Aerodynamic profiles (4). The discs are reinforced on the periphery with two aerodynamic profiles, separated by an angle of 180 ° '

The turbine converts the energy of the moving fluid into mechanical or electrical energy. If we connect it to an electric generator, we will have electric power and if we connect it to a pump or any other device, we will have mechanical energy.

The formula for calculating power is as follows:

P = PV where

P = power

F = lift force

V = fluid velocity

The bearing force is calculated by the following formula: F = 112 p S V2 where

p = fluid density S = swept area V = fluid speed replacing we have

P = 112 p S V3 the real power is:

Prea1 = Cp 11112 p S V3 where Cp = power coefficient 11 = machine performance Total performance 11t = Cp 11 replacing

Preal = 1I211t p S V3 If n = number of discs

Prea1 = 112 11t p n S V3

Advantages of the invention: Reduces virtually zero cavitation problems. It can work with air or water interchangeably or simultaneously. By increasing the number of discs, we increase the lift area, without varying the peripheral speed.

Industrial applications: In power plants. For pumping liquid or gaseous fluids

DRAWING N ° l (Elevation)

(1) = Coupling flange; (2) = axis; (3) = Convex flat lenticular disc; (4) = Aerodynamic profiles, installed at 1800 (5) = Bushing or bearing support

DRAWING N ° 2 (Plant)

(6) = Blades carved on the disk, installed at 1200

Detailed statement of an embodiment of the invention

If we pass a stream of air through a duct, with inlet section S1 and outlet section S2 and S2 is less than S], the air outlet speed V2 = V1S1 / S2, in accordance with the law of continuity. If we properly vary the S1 / S2 ratio, we can theoretically increase the output speed by an unlimited amount. In practice, due to limitations in manufacturing and strength of materials, there is a maximum speed.

DIMENSIONED OF A 1500 KW TURBINE. (WITH AIR) Applying the power formula P = 1/2 11t Pn S V3 If we have an air speed of 100 m / sec. - and we want a turbine of 4 discs, we need a swept area of: S = P * 2 * 100 / 11t P n V3 m2 where P = 1500 KW, P = 1.2, n = 4 V = 100 m / sec.-y 11t = 0.3 (for a speed ratio of 5) replacing S = 1500 * 2 * 100 / 0.3 * 1.2 * 1003 * 4 = 30000011440000 = 0.2 m2 then D = (0.2 * 4 / 3.14) 1/2 = 0.5 m in diameter. As the speed ratio 2JI W r / 60V = 5 W = 5 * 60 * VI JID = 5 * 60 * 100 / 3.14 * 0.5 = 30000 / 1.57 = 19000rpm

DIMENSIONED OF A 1500 KW TURBINE (WITH WATER) For a water speed of 10 m / sec. Disc diameter = 560mm (rounding)

Revolutions = 1750 rpm (rounding)

Claims (1)

l. Reaction turbine of lenticular discs, for continuous operation, which transforms the kinetic energy of a liquid fluid (water) or the kinetic energy of a gaseous fluid (air) into mechanical energy. The impeller of the turbine is equipped with the following elements: The shaft (2). It works normally in an upright position; In the upper part, a coupling flange (1) is installed and in the lower part a bushing (5) or bearing support. The disc (3) .The section of the disc is convex flat lens. At the top, three blades (6) are carved, forming 120 ° angles. They are coupled to the shaft (2) with a key, to prevent slippage. The number of discs, can be one or several. Aerodynamic profiles (4). The discs are reinforced at the periphery with two aerodynamic profiles, separated by a 180 ° angle. or gas, interchangeably or simultaneously. With application in the production of electrical energy and pumping of gases and liquids.