SU933916A1 - Hydroelectric station building - Google Patents

Description

(54) BUILDING HYDRO ELECTRIC POWER STATIONS

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FIELD OF THE INVENTION The invention relates to hydropower construction and concerns the erection of buildings of hydroelectric power plants, mainly of the riverbed type.

A building of hydroelectric power plants of the channel type is known, consisting of sections including generator and turbine overlaps, the sections being separated by expansion joints 1.

The generator overlaps are located at the level of the generator supports, and the turbine ones are located at the axis of the turbine wheel axles, while the overlaps are made in the form of reinforced concrete horizontal plates with openings for the units.

The disadvantage of this design is that its sections operate in unequal conditions, the extreme sections that take in the pressure of the bottom of the channel dam are in a more complicated stress state. Such an uneven stress state disrupts the contact of the hydroelectric power station with the base and complicates the work of the intersectional deformities. Deformations of the extreme sections can cause distortions in the structure as a whole and

misalignment of the turbine and generator.

The purpose of the invention is to improve the reliability of the building hydroelectric power. This goal is achieved by the fact that

5 expansion joints, in the places of generator and turbine floors, supporting devices are installed, made in the form of two parallel interacting plates with protrusions on the width

, Q expansion joint.

FIG. 1 schematically shows the proposed building of a hydroelectric power station, a longitudinal section; in fig. 2 - supporting device.

The building, the hydroelectric power plant consists of

15 sections 1, including generator 2 and turbine 3 floors. Sections 1 of the building of the hydroelectric power station are divided among themselves by expansion joints 4, while the extreme sections 5, including separate

20 walls (not shown) perceive the pressure of the soil of the dam 6. In the deformation joints 4, in the places of generator 2 and turbine 3 floors, support devices 7 are installed. Support devices 7 are made in the form of two parallel interacting plates 8 with projections 9 wide expansion joint 4.

The support devices 7 serve to transfer horizontal forces through expansion joints 4. The adjoining processed smooth surfaces of the plates 8 of the support devices 7 have such an area that the normal contact stresses in them are small, which does not prevent the normal operation of the expansion joint 4. In addition, the absence of horizontal movements of sections reduces bending moments in them and movements in sections of the adjoining separate walls of the channel dam.

The use of the invention allows saving of concrete or steel reinforcement and increases the reliability of the hydroelectric power station.

Claims (1)

Invention Formula The building of the hydroelectric power station, consisting of sections, including generator and turbine overlaps, wherein the sections are separated by expansion joints, characterized in that, in order to increase reliability, support devices are installed in expansion joints, in places of generator and turbine overlaps parallel interacting with each other plates with protrusions on the width of the expansion joint. Sources of information taken into account in the examination 1. Hydroelectric stations. Ed. Gubina F.F.M., “Energie, 1972, p. 165, rice 6-2.