Early warning device and method for collapse of deep-sea cage floating pipe

Abstract

The invention discloses an early warning device and an early warning method for collapse of a deep-sea cage floating pipe. The device consists of a protection box, a foil gauge, a strain gauge, a storage battery, an alarm device and a computer, wherein the foil gauge is adhered to a position where an anchor rope is tied on the cage floating pipe; the foil gauge is connected with the strain gauge; the strain gauge is connected with the computer; the alarm device is connected with the computer; the strain gauge is connected with the storage battery; the strain gauge and the storage battery are arranged in the protection box; the protection box is arranged on an outer floating pipe connecting frame in a cage; and the computer and the alarm device are arranged on a deep-sea cage culture platform. The foil gauge and the strain gauge are used for measuring strain data of multiple passages at the position where the anchor rope is tied on the cage floating pipe, inputting the strain data into the computer, calculating the stress of each measurement point, comparing the stress with allowable stress and sending a signal to alarm through the alarm device when the stress value of the measurement point is greater than the allowable stress value. The device and the method are used for safety early warning of a deep-sea cage floating frame and guarantee the normal work of a cage floating frame structure.

Description

technical field [0001] The invention relates to a device and method for early warning of deep-sea net cages. Background technique [0002] The gravity deep-sea cage is mainly composed of a floating frame structure, a net system, a counterweight system and an anchor system. It is a deep-sea anti-wind and wave breeding equipment. The floating frame structure plays an extremely important role in the anti-wind and wave performance of deep-sea cages. It must have sufficient strength to resist the attack of wind, waves and currents, and must also support the net system to maintain an effective breeding space. The effect of wind, wave and current on the net cage will not only deform the net clothes and reduce the volume of the net cage, but also deform the structure of the floating frame of the net cage. When the deformation is serious, the floating pipe will collapse, which will lead to the destruction of the whole net cage. The collapse of the floating pipe is related to the suc...

AI Technical Summary

Problems solved by technology

[0004] At present, there are many research and testing methods for the deformation of the net clothing, the rigid body motion of the floating frame and its stress, and the stress of the anchor rope, but there is no detection and early warning method for the subsidence caused by the yield failure of the floating pipe of the net cage.

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