Device and method for monitoring tension of underwater umbilical cable

Abstract

The invention relates to a device and method for monitoring the tension of an underwater umbilical cable in an ocean device. The device comprises a connecting device, a clamp, a steel cable hanging net and a tension monitoring sensor, wherein the connecting device, the upper end and the lower end of the steel cable hanging net, and the tension monitoring sensor are located on the same plumb line, the connecting device, the clamp and the steel cable hanging net are used for being connected with and fixing the umbilical cable, the tension monitoring sensor is arranged below the connecting device and connected to an instrument bin of a submersible device through a signal line and a watertight connector, a computer in the instrument bin is communicated with a water surface computer through an RS-422 communication interface, and voltage signals of the tension of the umbilical cable are transmitted to the computer in the instrument bin by the tension monitoring sensor and then are transmitted to the water surface computer through the umbilical cable. By means of the method and device, the tension of the underwater umbilical cable can be monitored and is prevented from exceeding a threshold value, necessary information can be provided for the operation of operation personnel in time so that the fatigue cracks of the umbilical cable and the operation accidents of the submersible device can be avoided, and the operation safety of a body of the submersible device can be ensured.

Description

technical field [0001] The present invention relates to a control mechanism and method in the technical field of marine exploration devices, in particular to a device and method for tension monitoring of underwater umbilical cables. Background technique [0002] The ocean is rich in minerals, biological and space resources. As a high-tech means, submersibles play a very important role in the process of human exploration of the ocean. As one of the key components of the submersible system, the umbilical cable provides the hydraulic power source, electrical power supply and communication signals for the submersible. It is very important for the safe operation of the submersible system that the umbilical cable can work smoothly and stably under the influence of its own weight, waves and currents. However, it is impossible for the submersible body to rise and sink synchronously with the mother ship or repeater in the water. When there is a phase difference, the umbilical cable ...

AI Technical Summary

Problems solved by technology

However, this technology only provides a joint for testing the umbilical cable and its installation method for simultaneously fixing the outer pinning layer and the cable core of the sample cable so that the umbilical cable can withstand tension and torsion, and does not involve tension monitoring equipment. Constitutes a complete umbilical cable tension monitoring device, while not considering the practical application in underwater engineering

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