Tension leg net cage model test device

Abstract

The invention discloses a tension leg net cage model test device. The device comprises a device framework and an underwater sand tank, wherein the device framework comprises two transverse girders stretching across guide rails at the two sides of a water tank and two longitudinal girders fixed between the two transverse girders, the underwater sand tank is connected with each longitudinal girder through an iron chain, a traction rod is arranged at the side edge of the transverse girder at the left side, traction pulleys are arranged above and below the traction rod respectively, a tension sensor, which is used for detecting deformation generated when the underwater sand tank is pulled, is arranged on the device framework, the tension sensor is connected with the underwater sand tank through a tension steel cable located on the two traction pulleys to form a tension conduction detection device, a tension steel cable of the underwater sand tank needs to be pre-tightened in advance, waterproof travel switches in one-to-one correspondence with gravity anchors of a tested tension leg net cage model are arranged in the underwater sand tank, and a controller electrically connected with the waterproof travel switches and the tension sensor is arranged above the device framework. Through the device, the maximum water flow impact force capable of being borne by an anchoring system of thetension leg net cage model can be tested.

Description

technical field [0001] The invention relates to a net cage model test device, in particular to a tension leg net cage model test device. Background technique [0002] With the continuous improvement of deep-water aquaculture technology and marine structure manufacturing technology, deep-water and open-sea cage culture at home and abroad has achieved great development in recent years. Compared with traditional offshore net cages, the wind and wave series of the environment where deep sea net cages are located is much larger than that in offshore waters. Therefore, the reliability of the cage structure is directly related to the industrial benefits of cage culture. Among the current types of deep-water cages, tension leg cages have better wind and wave resistance than other cages. [0003] The tension leg cage is composed of jar-shaped cage, tension leg and gravity anchor. The gravity anchor is used to fix the mooring position of the cage and sink in the bottom mud. The size...

AI Technical Summary

Problems solved by technology

The pre-tension acts on the tension leg (that is, the rope of the gravity anchor), so that the tension leg is always in a tense state, which is completely different from the existing traditional catenary mooring system. Tension leg cages are mostly The mooring rope is stressed at the same time, so the current cage model test device cannot simply measure its ability to resist the impact of ocean currents, and it is also impossible to know whether the gravity anchor is anchored on the seabed.

[0005] At present, there is no cage model test device that can test the maximum water impact force that the mooring system of the tension leg cage model can withstand in a still tank

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