Hydroelectric power generation device using multistage cascade structure

Abstract

The present invention relates to a hydroelectric power generation device using a multistage cascade structure, comprising: a support (10) vertically installed and having a predetermined length; a plurality of water turbines (20), each of which includes a horizontal rotation shaft (21) rotatably installed on the support (10) and a plurality of buckets (22) radially arranged with reference to the rotation shaft (21); an upper and a lower reservoir (30, 40) respectively installed at an upper and a lower part of the support (10) so as to store a predetermined amount of water; a pump (50), installed in the lower reservoir (40), for supplying water stored in the lower reservoir (40) to the upper reservoir (30); a generator (60) installed on the rotation shaft of each of the plurality of water turbines (20); and a charging battery (70) for storing electricity produced by the generator (60). Thanks to such a configuration, the present invention can stably and effectively produce electricity.

Description

technical field [0001] The present invention relates to a hydroelectric power generation device using a multi-stage drop structure, and more particularly, to a hydroelectric power generation device using a multi-stage drop structure, that is, a plurality of waterwheels are arranged up and down, and the water passing through the upper part is driven along multiple The waterwheel falls down and turns the waterwheel to drive a generator, which generates electricity. Background technique [0002] Generally, various methods of generating electricity by using fire power, water power, wind power, and solar heat are known. Among them, devices using hydropower generation (hereinafter referred to as "hydroelectric power generation devices") have the advantages of less environmental pollution, simple structure, and low power generation costs. The advantages of other power generation devices are therefore widely used. [0003] Generally, a hydroelectric power generation device as descr...

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Problems solved by technology

[0005] However, the hydroelectric power generation device in the above-mentioned patent document has the following disadvantages: since a plurality of small waterwheels are provided, it is difficult to increase the drop rate of water applied to each waterwheel, thus causing the strength of the force to turn the waterwheels to also become small

[0006] In particular, the waterwheels arranged in multiple stages are connected so that one drive shaft is rotated through gears. Due to this structure, it is difficult to rotate the drive shaft only by the waterwheel located at the top during the initial drive. Causes the waterwheels to not rotate smoothly, which translates to a load on the waterwheels below, and therefore does not allow the waterwheels to rotate smoothly as a whole

[0007] Therefore, in the initial start-up process, it is necessary to provide rotational power by using a motor or the like so that the water wheel or the drive shaft can be rotated to make the water wheel rotate smoothly, and in order to continuously rotate the water wheel, it is necessary to use a water pump or the like to supply power to the water wheel. The uppermost waterwheel side is continuously supplied with water, so it will consume electricity for driving motors and water pumps, etc., which is directly related to the power generation efficiency of power generation by driving the generator, so there is also a problem that the power generation efficiency will decrease

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