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Integrated active and passive composite heave compensation device and working method thereof

A heave compensation and active compensation technology, which is applied in fluid pressure actuation devices, transportation and packaging, equipment for reducing ship motion, etc., can solve problems such as internal instrument failure and equipment instability, and achieve dynamic load suppression and smooth switching , strong portability

Active Publication Date: 2018-09-28
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional active and passive heave compensation system cannot meet the fluctuating loads in the air, "splash area" and underwater area at the same time. The working conditions of the three areas have different requirements for the compensation system. If it cannot be adjusted, it will cause equipment instability, Problems such as failure of internal instruments after being impacted

Method used

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  • Integrated active and passive composite heave compensation device and working method thereof
  • Integrated active and passive composite heave compensation device and working method thereof
  • Integrated active and passive composite heave compensation device and working method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] An integrated active-passive composite heave compensation device includes an active compensation system, a passive compensation system and a control drive module.

[0045] The active compensation system includes a main pump unit, a first hydraulic cylinder, and a second hydraulic cylinder. The control drive module is used to receive sea state signals and feedback signals and control the main pump unit. The main pump unit is connected to the first hydraulic cylinder. The main pump unit is used for Control the flow and pressure of the first hydraulic cylinder and feed back the information of the first hydraulic cylinder to the control drive module; the oil outlet of the first hydraulic cylinder is connected with the oil inlet of the second hydraulic cylinder through the oil circuit; the oil of the two hydraulic cylinders The opposite direction of motion enables active heave compensation.

[0046] The passive compensation system includes a gas-liquid accumulator and a gas ...

Embodiment 2

[0048] An integrated active and passive composite heave compensation device, the structure of which is as described in Embodiment 1, the difference is that the number of gas storage cylinders is 3, namely the first gas storage cylinder, the second gas storage cylinder, the second gas storage cylinder Three gas storage bottles, the first gas storage bottle is provided with a first air inlet and a first gas outlet, and the gas-liquid gas outlet of the gas-liquid accumulator is connected with the first air inlet through a pneumatic pipeline.

[0049] The second gas storage bottle is provided with a second gas port, the third gas storage bottle is provided with a third gas port, and the second gas port and the third gas port are respectively connected to the first gas outlet through a pneumatic pipeline. Set up three relatively independent gas storage cylinders, which can be selected according to the actual situation, and the second gas storage cylinder and the third gas storage cy...

Embodiment 3

[0051] An integrated active and passive composite heave compensation device, its structure is as described in Embodiment 2, the difference is that a switching valve is provided on the pneumatic pipeline between the second air port and the first air outlet, and the third air port is connected to the first air outlet. An on-off valve is arranged on the pneumatic pipeline between the air outlets. When the second gas storage cylinder or the third gas storage cylinder is needed, open the switch valve on the corresponding pipeline; when the second gas storage cylinder or the third gas storage cylinder is not needed, close the switch valve on the corresponding pipeline, at this time only The first gas cylinder works.

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Abstract

The invention relates to an integrated active and passive composite heave compensation device and a working method thereof and belongs to the technical field of ocean engineering equipment. The integrated active and passive composite heave compensation device comprises an active compensation system, a passive compensation system and a control driving module; the active compensation system comprises a main pump unit, a first hydraulic cylinder and a second hydraulic cylinder; the pressure changes of the two hydraulic cylinders with reverse oil liquid moving directions are controlled by the mainpump unit to realize active heave compensation; the passive compensation system comprises a gas-liquid energy accumulator and a gas storage cylinder; and the gas-liquid energy accumulator is connected with the second hydraulic cylinder and the gas storage cylinder so that passive heave compensation can be realized. According to the integrated active and passive composite heave compensation deviceand the working method thereof, active compensation and passive compensation are combined, the limited space of a deck is not occupied, and the transferability is strong.

Description

technical field [0001] The invention relates to an integrated active and passive composite heave compensation device and a working method thereof, belonging to the technical field of marine engineering equipment. Background technique [0002] Ocean engineering equipment, especially seabed operations and water entry operations, are affected by wind, waves, and currents, and the mother ship produces huge pitch, roll, yaw, surge, sway, heave and their coupled motions with the waves on the sea surface. This leads to problems such as inaccurate job positioning, cable fatigue fracture, and equipment instability. Therefore, a heave compensation system must be used to reduce the influence of waves on the ship's motion state. Sometimes in order to better adapt to various complex working conditions, sometimes even two or more sets of compensation systems are installed, including the installation of constant tension and passive compensation devices at the same time, which makes the st...

Claims

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Application Information

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IPC IPC(8): B63B39/00F15B1/02F15B11/16
CPCB63B39/00F15B1/02F15B11/16
Inventor 李世振刘延俊张增宝
Owner SHANDONG UNIV
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