SU50563A1 - Hydraulic turbine for pulsating flow energy - Google Patents

Description

The invention relates to hydraulic turbines for utilizing the energy of a nullified flow by splitting it with appropriate partitions into separate streams with a smaller amplitude of pressure and velocity fluctuations.

In the proposed hydraulic turbine, several of the same type of branches are mounted on the common shaft, arranged in order of increasing their specific speed at the transition from the extreme to the middle wheels.

In FIG. 1 shows a flow pattern of a pulsating flow, and FIG. 2 is a hydraulic turbine diagram for utilizing pulsed flow energy.

The pulsating flow of fluid moving through the pipe at the maximum burst degree (pulsation) has the shape shown in fig. 1. With a pulsating flow, the central part of the flow has maximum kinetic energy, while its power decreases at the edges.

Turbine flow

(Fig. 2), for example, using three of the same type of wheels 1,2, splits into two separate streams — an external one with a lower speed and a central one with a greater speed. To do this, a separator 7 is inserted into the pipe 6. The cheeks 8, mounted on the separator 7, divert a part of the flow to the outermost frame /. The turbine wheels are installed in the order of increasing their speed on a common shaft 4 with a middle wheel 2, operating under the action of a central flow b.

The subject matter of the invention.

A hydraulic turbine for using the energy of a pulsating flow by branching it with the help of appropriate partitions into separate flows with a smaller amplitude of pressure fluctuations and speed, which is characterized using several of the same type, in the number of branches, wheels, 2, mounted on the common shaft in order to increase their specific speed at the transition from the extreme wheels / to the middle wheel 2.

figure 1

fig 2

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