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Submersible energy generating system, driven by a water flow

A power generation equipment and water flow technology, applied in hydroelectric power generation, mechanical equipment, ocean energy power generation, etc., can solve problems such as unfavorable rotation speed of generators, reduced length extension of water turbine blades, etc., to reduce vibration tendency and reduce bearing clearance Effect

Inactive Publication Date: 2013-06-12
VOITH PATENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the possible length extension of the turbine blades is reduced starting from the fixedly predetermined overall diameter of the power plant
Alternatively, the diameter of the generator can be reduced, however this is disadvantageous in terms of the rotational speed of the generator

Method used

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  • Submersible energy generating system, driven by a water flow
  • Submersible energy generating system, driven by a water flow
  • Submersible energy generating system, driven by a water flow

Examples

Experimental program
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Embodiment Construction

[0031] figure 1 A perspective view is shown of a rotary unit 20 of a power plant according to the invention, which is in contact with external water on multiple sides. According to the embodiment shown, the water turbine 1 comprises propeller-shaped turbine blades 2.1, 2.2, 2.3. In the preferred embodiment shown, the turbine blades 2.1, 2.2, 2.3 are hinged to the disc 4, wherein this connection can be designed to be rotationally fixed or have a blade angle adjustment.

[0032] A bearing 3 is connected axially to the disk 4 . On the support 3, in order to be in the fixed pod shell (not in figure 1 (Ablauf) in the interior of the inner bore shown in ) with a bearing structure. Presently the respective rotating components of the first radial bearing 5.1 and of the second radial bearing 5.2 are shown in the form of sliding bearing components, wherein sliding surfaces are integrated in the region of the wall of the bearing. Furthermore, the generator rotor 6 . 1 is carried by t...

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Abstract

There is provided a power generation plant for obtaining electrical power from a water flow. The power generation plant includes a revolving unit having a water turbine, a directly driven electrical generator having a coaxial configuration with a generator rotor and generator stator, a gondola housing having a housing part to form a cylindrical internal opening where the generator stator is situated, a support element for supporting the revolving unit which is situated coaxially and radially inside the cylindrical internal opening to bear the generator rotor, and a bearing configuration for the running of the support element in the cylindrical internal opening. The electric generator of the power generation plant is situated asymmetrically in relation to the longitudinal extension of the cylindrical internal opening in the gondola housing and is also displaced toward the support structure carrying the gondola housing.

Description

technical field [0001] The invention relates to a submersible power plant driven by water currents, in particular for obtaining electrical energy from flowing water or sea currents, preferably tidal currents. Background technique [0002] Submersible power plants designed independently of the embankment structure and driven by the kinetic energy of water currents, in particular sea currents, show great potential for fully utilizing renewable energy sources. Furthermore, due to the high density of the flow medium, relatively low flow velocities of approximately 2 to 2.5 m / s have been exploited in order to obtain energy economically. This flow ratio is either available as a tidal current or makes use of another sea current, which can reach economically usable speeds, especially in channels. [0003] This flow can drive a fluid power plant, which has a similar design to a wind power plant, ie uses a turbine disk with rotor blades as a water turbine. Of course, other water tur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03B13/10F03B13/26F03B17/06
CPCF03B13/10F03B13/264Y02E10/28F03B17/061Y02E10/30Y02E10/20
Inventor 本杰明·霍尔斯坦诺曼·佩纳
Owner VOITH PATENT GMBH