The method of attracting fish due to the temperature rise in the river

Abstract

The invention discloses a method for attracting fish with temperature rise in a river channel, which includes: opening the flow control gate, the water flow in the river channel enters the heating system, and first enters the first-level heating room, the heating coil in the first-level heating room senses the incoming water, and the first-level heating room Start heating, and start heating when the heating coils in the heating chambers of other levels connected successively sense the water flow; the warm water heated by the multi-stage heating chamber is injected into the river channel through the flow chamber and the outlet pipe, so that the temperature of the river water begins to rise; In the heating system of the fishway mouth, the warm water heated by the multi-stage heating chamber passes through the flow chamber to the outlet pipe, and is injected into the river water around the fishway mouth from the outlet pipe; the temperature sensors in the river channel respectively sense the raised temperature and The temperature in the river has not risen; the intelligent temperature control system controls the opening or opening and closing of the flow control gate according to the temperature rise range of the river adjacent to the fishway mouth. According to the method for attracting fish by raising the temperature of the river course of the present invention, the sensitivity of fish to temperature is used to increase the fish passing rate in the fishway.

Description

technical field [0001] The invention relates to the fields of water conservancy and hydropower engineering and ecological environment, in particular to a fish-passing building, and more particularly to a method for attracting fish with temperature rise in a river. Background technique [0002] Fishway is an engineering measure to help fish go up. Building dams and other water conservancy projects on rivers cuts off the way for fish to migrate and spawn. By building fishways, fish can go up during the migration season, thereby Maintain the ecological balance of the river section. [0003] Fishway is a special facility to help fish pass through barriers such as dams smoothly, and plays an irreplaceable role in maintaining the continuity of rivers and the communication of biological populations. The success of fishway structures is one of the evaluation indicators for the health of the river ecosystem, and it is also an important evaluation indicator for ecological environment...

AI Technical Summary

Problems solved by technology

[0012] The technical problem to be solved by the present invention is to provide an innovative method for attracting fish with temperature rise in the river channel, which overcomes the shortcomings of the existing fish attracting devices, such as low fish attracting efficiency and high operating cost, so as to guide migratory fish to the entrance of the fishway and improve the quality of the fishway. Fish passing efficiency, maintaining river continuity and biological population exchange

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