SU88780A1 - Mechanical speed controller indirect action for low power Kaplan turbines - Google Patents

Description

The known hydraulic flow replators used for small hydropower turbines have a number of significant drawbacks, which include the complex design of an oil device, the inconvenience of operation and the labor-intensive adjustment and reelunt.

In the proposed regulator, these disadvantages are eliminated. In order to regulate without using the mala according to a scheme similar to the hydraulic regulating circuit, the Shchivka freely seated on the turbine shaft was used, which is a nut for the thread at the end of the shaft, regulating the rotation of the impeller blades and connected via lever to the turbine shield. . The pulley receives rotation from the turbine shaft using a friction variator.

FIG. depicts a chem. and a Kaplan turbine with a mechanical regulator; in fig. 2-scheme mechanically;: whom the regulator.

The mechanical regulator consists of the following main working units: the shkin - / with a centrifugal pilot, a coupling 2 with a spring and a nut for changing the speed and speed, the speed of the accelerator, playing the role of cepsoNioTopa, the friction variator 4 (Svetozarov system). replacing spool hydraulic regulator, and switch 5 (feedback).

The nut-nut 3 is driven from the turbine shaft 6 by the MOOUI of the bolt /, the belt gears 7 of the variator 4. The rotor blades 5 are rotated in the usual manner for Callan turbines - by moving the rod 9 positioned on the shaft 6. Voltage rate control; The propal through the turbine is produced by a cylindrical shield 10 that is moved in the vertical direction along the venp of the stationary support vanes of the turbine.

When the turbine load changes, the thumb // moves the coupling 2 and through the lever 12 rearranges the variator rollers so that its exit tongue starts to rotate faster or slower than the entrance tongue, as a result of which the pulley 3 rotates relative to the shaft 6, moving the rod 9 and thereby rearranging the blades impeller 5. At the same time through the lever gear 13, the position of the shield 10 is changed.

The described mechanical regulator of indirect action for water turbines of Kaplan small hydroelectric power plants can be applied at the local industrial and agricultural facilities. By the design, it is simple, cheap, convenient in operation II, makes it easy to set up and repair; energy is expended on itself only at the moment of adjustment.

Subject invention

Mechanical speed controller indirect action for turbines

A low-power Callan with a centrifugal tank is used as an encoder sensor, its pulse, which is different from the fact that a pulley mounted on the turbine shaft and used for a thread on the turbine shaft is used to regulate without using oil. the end of the shtangi, which regulates the rotation of the blades of the impeller and is connected through a lever gear to the cylinder shield of the turbine, and the pulley receives rotation from the turbine shaft using a friction variator.

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