Fluid slip ring for single point mooring device

Abstract

The invention relates to the technical field of marine engineering, and discloses a fluid slip ring for a single-point mooring device, which includes a mounting flange, an outer ring and an inner ring. The upper end of the mounting flange is fixedly connected with an inner ring. The outer wall of the flange is sleeved with an outer ring. Due to the regularity of wind and waves in the ocean, it is rare for engineering ships to rotate around the mooring device at a large angle in daily life. The single point mooring device uses a fluid slip ring to sacrifice the ability to rotate at a large angle. The connection of the head realizes the fluid connection, the rotation action between the outer ring and the inner ring, the action of the sea wave and the force of the ship are completely borne by the outer ring and the inner ring, the force between the lower joint and the upper joint is constant, and the wear is uniform And small, secondly, the requirement for the coaxial is small, the installation is more convenient, the high temperature and high pressure medium circulates in the lower connector and the upper connector, the fluid pressure has less influence on the seal, and the application range of temperature and pressure is wider.

Description

technical field [0001] The invention relates to the technical field of marine engineering, in particular to a fluid slip ring for a single-point mooring device. Background technique [0002] Single-point mooring means that the marine engineering ship is moored on another fixed or floating structure through a single point, and the ship can rotate 360° around the structure with the wind and waves. It will be berthed in the position with the least environmental force. For offshore oil and gas exploitation, it must also have the function of fluid transfer. [0003] see figure 1 , the communication cavity between the inner and outer rings is sealed by seals, and the wear and tear of the surface will cause the slip ring to leak, which restricts the service life of the fluid slip ring. Due to the large mass of the marine engineering ship, the pressure on the slip ring is usually on one side. , which will lead to uneven wear of the seals, further reducing the service life of the s...

AI Technical Summary

Problems solved by technology

[0003] see figure 1 , the communication cavity between the inner and outer rings is sealed by a seal, and the wear and tear of the surface will cause the slip ring to leak, which restricts the service life of the fluid slip ring, and due to the large mass of the offshore engineering ship, the pressure on the slip ring is usually biased to one side , will lead to uneven wear of the seal, further reducing the service life of the seal, and secondly, the vibration caused by the sea waves, and the rotation between the inner and outer rings will reduce the service life of the slip ring

[0004] On the other hand, in some other projects, some high-temperature, high-pressure and high-corrosion media will be transported. For example, in oil exploitation, high-pressure steam will be sent to increase the temperature of the oil to reduce the viscosity of the oil and increase the speed of oil transportation. Large diameter High-pressure fluid slip rings generate large axial force of the medium, and the reliability and safety of sealing and rotation are poor

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