The present invention is an invention for preventing the pollution is increased by diluting the storage water of large-scale stored water, such as a dam up and down.;More specifically, because the specific gravity point of the upper and lower layers of the stored water is different, that is, the upper layer contains a large amount of organic material, the lower layer contains a large amount of inorganic material, and the middle layer has a ratio of a high oxygen content. It is an invention for constructing in the form that can be purified to contaminate the water by the average form.;As the upper and lower layers flow or are stored separately, sediment will always accumulate in the lower bed unless artificially diluting the composition.;The structure to solve this defect is simply solved by causing convection using heat to be diluted by the natural phenomena of the components of the upper and lower layers.;In more detail, if a large number of devices are installed at the bottom of a lake or river to operate them, the lower layer water, which is kept at a very low temperature, is kept at a higher temperature than the lower layer. It is a known fact that the upper and lower layers of water are naturally diluted by stirring with water. In addition, these phenomena deposited in the riverbed as the sediment is moved to the upper layer and gradually sinks to the riverbed, and in that time is decomposed naturally by oxygen, so you can see the effect of one stone two.;However, there is no device for diluting the upper and lower layers of water stored using such a device.;Since the water in the upper and lower layers is agitated and diluted, sediment does not occur in the lower bed as before, and it is possible to easily remove the sediments which are the main causes of total pollution.;Instead of removing the sediments at once in a lake, if the water of the upper and lower layers is agitated and diluted by using this device, the sediments in the stored water can be easily removed.
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