Multifunctional circulating water tank for fish swimming

Abstract

The invention discloses a multifunctional circulating water tank for fish swimming exercise. The multifunctional circulating water tank comprises a rectangular water tank body, wherein the water tank body is separated into an upper layer of water tank and a lower layer of water tank through a separating layer; the upper layer of water tank and the lower layer of water tank are communicated with each other through a waterway to form a loop; a propeller is arranged in the lower layer of water tank; a cabin separating plate in wedge-shape used for separating the upper layer of water tank into a constant-cross section water tank and a variable-cross section water tank is arranged nearby the middle line of the upper layer of water tank; a front separating net is arranged nearby the wedge-shaped sharp end of the cabin separating plate; a rectifying plate is arranged nearby the front end of the front separating net; a rear separating net is arranged nearby the wedge-shaped structure base part of the cabin separating plate; observation windows are formed in two sides of the upper layer of water tank. Under the propelling of the propeller, water flow gets to the rectifying plate through the lower layer of water tank to form laminar flow, and under the action of the cabin separating plate, a constant-cross section tunnel and a variable-cross section tunnel are formed. An experiment can be observed through the observation windows, and the behavior of fishes can also be visually observed by using a computer. Therefore, the multifunctional circulating water tank has the advantages that flows with different cross sections can be simulated, the effects of intuition and reliability are achieved, and the laminar flow is stable.

Description

technical field [0001] The invention relates to an aquatic animal swimming observation test platform, in particular to a multifunctional circulating water tank for fish swimming. Background technique [0002] The swimming ability of fish is an important basis for the selection of breeding sites for marine facilities. The swimming ability of fish includes continuous swimming ability under constant flow rate and variable speed swimming ability under variable flow rate conditions. At the same time, it is necessary to pay attention to the optimal swimming speed or favorite swimming speed of fish. At present, there is no special equipment for the test of the most preferred swimming speed. To solve this problem, this device proposes a variable-section water tank design, which produces different flow speed zones in the tank, and fish can freely choose the appropriate flow speed area. On the other hand, in marine aquaculture, fish are forced to swim under the action of regular tida...

AI Technical Summary

Problems solved by technology

At present, there is no special equipment for the test of the most preferred swimming speed. To solve this problem, this device proposes a variable-section water tank design, which produces different flow speed zones in the tank, and fish can freely choose the appropriate flow speed area.

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