CN108820154A - A kind of half Active Heave Compensation System based on combined type two-stage hydraulic cylinder - Google Patents

A kind of half Active Heave Compensation System based on combined type two-stage hydraulic cylinder Download PDF

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Publication number
CN108820154A
CN108820154A CN201810715760.9A CN201810715760A CN108820154A CN 108820154 A CN108820154 A CN 108820154A CN 201810715760 A CN201810715760 A CN 201810715760A CN 108820154 A CN108820154 A CN 108820154A
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China
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cylinder
active
fluid port
hydraulic fluid
compensation system
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CN201810715760.9A
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刘延俊
李世振
于辉
颜飞
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Shandong University
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Shandong University
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Priority to CN201810715760.9A priority Critical patent/CN108820154A/en
Publication of CN108820154A publication Critical patent/CN108820154A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/02Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses
    • B63B39/03Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses by transferring liquids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63GOFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
    • B63G8/00Underwater vessels, e.g. submarines; Equipment specially adapted therefor
    • B63G8/14Control of attitude or depth
    • B63G8/24Automatic depth adjustment; Safety equipment for increasing buoyancy, e.g. detachable ballast, floating bodies

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

The invention discloses a kind of half Active Heave Compensation Systems based on combined type two-stage hydraulic cylinder.Half Active Heave Compensation System based on combined type two-stage hydraulic cylinder, the load including being installed on offshore operations platform hang system, Active Compensation system and passive compensation system;The Storage Unit that the passive compensation system includes passive cylinder, is connected with the rodless cavity hydraulic fluid port of passive cylinder;Hydraulic circuit system, detection unit, the controller that the Active Compensation system includes active cylinder, is connected with the rod chamber hydraulic fluid port and rodless cavity hydraulic fluid port of active cylinder.Half Active Heave Compensation System based on combined type two-stage hydraulic cylinder, Active Compensation and the flexible switching or parallel processing passively compensated can be achieved, enhance the anti-interference ability of deep compensation system, the stroke of system balance is longer, it has broad application prospects in the heave compensation in following high sea situation deep ocean work field, more excellent selection is provided to the deep-sea underwater operation of underwater robot.

Description

A kind of half Active Heave Compensation System based on combined type two-stage hydraulic cylinder
Technical field:
The invention belongs to the marine technology fields of deep-sea detecting and operation technique, more particularly to one kind to be applied to having cable underwater Half Active Heave Compensation System based on combined type two-stage hydraulic cylinder when robot deep ocean work.
Background technique:
The world today is the world of ocean, with ocean explore increasingly frequently, China is in the oceans operation such as deep-sea detecting Also more and more, but operation on the sea is influenced by adverse circumstances such as wind, wave, stream, tides, and pitching, cross can occur for offshore operations platform Distant, yawing, surging, swaying, heaving and its coupled motions, wherein the movement of heave direction is the most aobvious to maritime safety j ob impact It writes.
There is cable underwater robot to be connected to repeater, repeater by hawser when carrying out deep ocean work on platform at sea Sea operating platform is connected to by very long hawser.Under different sea situations, offshore platform can constantly be heaved with wave, The heave movement is transferred to undersea repeaters by hawser, leads to have cable underwater robot in recycling, release or the course of work The impact drawn by hawser even collides with repeater, and strong influence underwater robot operation precision is serious Safety problem can be caused, this is just needed using suitable heave compensation system.
The heave compensation system for having cable underwater robot to use at present is mainly passive heave compensation system and active heave Compensation system.Wherein passive heave compensation system is using hydraulic cylinder and accumulator buffering offshore platform heave movement to underwater relaying The disturbance of device.When at sea deep movement occurs for operating platform, come by the self weight for rising lifting force and underwater marine settings of wave Working media in compression and release accumulator, to realize the heave compensation to underwater kit.Passive heave compensation system Be advantageous in that and do not need to be additionally provided power, system is simple, and application is relatively broad, but its required equipment is huge, compensation precision compared with Low, than more prominent, compensation ability is extremely limited lag issues.When sea situation becomes more severe, passive heave compensation system is just It is insufficient for the smooth working requirement of underwater robot.So the use of Active Heave Compensation System is come into being, feature It mainly needs to add active force, is driven with electric energy or hydraulic energy, now with winch type, hydraulic cylinder type, be used to compensate sea The deep movement of foreign platform makes underwater robot keep stable operating point or steady state of motion, and advantage is compensation precision height, Anti- external disturbance ability is stronger, and compensation ability is stronger, the disadvantage is that system complex, is compensating the heavier biggish underwater machine of working depth Energy consumption is bigger when device people's work system, and the compensation time is unsuitable too long.
The deep compensation system of existing active-passive integrated formula passes through simply series connection for passive compensation system and master mostly Dynamic heave compensation system concatenation, advantage is increased than individual compensation system compensation ability, the disadvantage is that by simple string It connecing, the huger redundancy of compensation system is not accurate enough in the selection of heave compensation, it will cause more energy consumptions, or It is compensation failure.Therefore, the novel compensation system of one kind is needed to solve the above problems.
Summary of the invention:
High, system control that the present invention provides a kind of compensation precisions is simply, compensation efficiency is high, energy consumption consumption is low, at low cost Half Active Heave Compensation System based on combined type two-stage hydraulic cylinder, solve problems of the prior art.
Used technical solution is the present invention to solve above-mentioned technical problem:
A kind of half Active Heave Compensation System based on combined type two-stage hydraulic cylinder, including be installed on offshore operations platform Load hang system, with load hang the Active Compensation system and passive compensation system that system is connected;
The passive compensation system includes the horizontal passive cylinder for being set to offshore operations table top, the rodless cavity with passive cylinder The connected Storage Unit of hydraulic fluid port;The Active Compensation system includes the rod chamber hydraulic fluid port and rodless cavity oil of active cylinder and active cylinder The connected hydraulic circuit system of mouth, the detection unit for detecting offshore operations platform motion state, analysis detection unit send signal And the controller of instruction is sent to hydraulic circuit system;The rodless cavity cylinder body of the active cylinder horizontally extends into the cylinder body of passive cylinder As the piston rod of passive cylinder, it is equipped with a piston at the cylinder body rear portion of active cylinder, the cylinder body of passive cylinder is divided by the piston Rod chamber and rodless cavity;
The load hangs system and includes the first movable pulley being set on active cylinder piston bar and the second movable pulley, is set to sea The first fixed pulley and the second fixed pulley at the top of upper operating platform, one end of hawser are fixed on the first fixed pulley, the other end according to It is secondary bypass the second movable pulley, the first fixed pulley, the first movable pulley, the second fixed pulley after be connected with undersea repeaters, underwater People passes through in another cable suspended under water repeater.
The Storage Unit includes gas-liquid accumulator and gas cylinder group, the rodless cavity of the hydraulic fluid port of gas-liquid accumulator and passive cylinder Hydraulic fluid port is connected, and the port of gas-liquid accumulator is connected with gas cylinder group.
The detection unit includes the IMU motion sensor being set on offshore operations platform, is set to active cylinder and passive cylinder Displacement sensor on piston rod is set between undersea repeaters and the second fixed pulley and undersea repeaters and underwater robot Between tension sensor on hawser.
The hydraulic circuit system includes the active cylinder rodless cavity petroleum pipeline being connected with the rodless cavity hydraulic fluid port of active cylinder, actively Cylinder rodless cavity petroleum pipeline is pierced by from the rodless cavity casing wall of passive cylinder to be connected with the first hydraulic fluid port of three-position four-way valve afterwards, and active cylinder has Rod cavity hydraulic fluid port is connected with the second hydraulic fluid port of three-position four-way valve, and the third hydraulic fluid port of three-position four-way valve is connected through variable pump with fuel tank, and three 4th hydraulic fluid port of position four-way valve is also connected with fuel tank.
Connection three-position four-way valve the first hydraulic fluid port and active cylinder rod chamber hydraulic fluid port oil circuit with connect three-position four-way valve There are two counterbalance valves, two counterbalance valves to constitute differential time for reverse parallel connection between second hydraulic fluid port and the oil circuit of active cylinder rod chamber hydraulic fluid port Road is respectively provided with a unloading valve being connected with fuel tank on each counterbalance valve oil circuit.
On pipeline on pipeline between variable pump and fuel tank, between the 4th hydraulic fluid port and fuel tank of three-position four-way valve respectively Equipped with a return filter, a safety valve is parallel between the oil outlet and oil inlet of variable pump.
There are petroleum pipeline sealing pipeline, the petroleum pipeline sealing pipeline and quilt in active cylinder rodless cavity petroleum pipeline outer cover Dynamic cylinder cylinder body external screw thread connection, connect with outer oil circuit internal screw thread.
The present invention using the above structure, has the following advantages that:
Half Active Heave Compensation System based on combined type two-stage hydraulic cylinder, the sea for deep-sea detecting and operation technique Foreign technical field, based on big depth, big load, long-time, high-precision, low energy consumption, the low cost, height in abyssopelagic operation Underwater cable tension fluctuation, repeater is effectively reduced to compensate to the heave movement of offshore operations platform in the requirement of efficiency The amplitude of deep movement, to guarantee there is cable underwater robot to be able to steady, safely release, recycling and work.
Half Active Heave Compensation System based on combined type two-stage hydraulic cylinder, main includes that load hangs system, active Compensation system, passive compensation system, controller and hydraulic circuit system, Active Heave Compensation System become more to dislike for sea situation Bad passive compensation system is not enough to provide the case where compensation precision or needs sensitiveer compensation of heave movement emergency case, whole A system balance precision is high, system control is simple, compensation efficiency is high, energy consumption consumption is low, at low cost, system compresses integration, volume It is small, it can be achieved that Active Compensation with passively compensate it is flexible switch or parallel processing, enhance the anti-interference energy of deep compensation system The stroke of power, system balance is longer, in the heave compensation in following high sea situation deep ocean work field with wide before Scape provides more excellent selection to the deep-sea underwater operation of underwater robot.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1;
Fig. 2 is the structural schematic diagram of the embodiment of the present invention 2.
In figure, 1, offshore operations platform, 2, passive cylinder, 3, active cylinder, 4, controller, 5, piston, the 6, first movable pulley, 7, Second movable pulley, the 8, first fixed pulley, the 9, second fixed pulley, 10, undersea repeaters, 11, underwater robot, 12, gas-liquid accumulation of energy Device, 13, gas cylinder group, 14, IMU motion sensor, 15, displacement sensor, 16, tension sensor, 17, active cylinder rodless cavity it is defeated Oil pipe, 18, three-position four-way valve, 19, variable pump, 20, fuel tank, 21, petroleum pipeline sealing pipeline, 22, counterbalance valve, 23, unloading valve, 24, return filter, 25, safety valve.
Specific embodiment:
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this hair It is bright to be described in detail.
As shown in fig. 1, half Active Heave Compensation System of the present embodiment based on combined type two-stage hydraulic cylinder, including installation System is hung in the load on offshore operations platform 1, hangs the Active Compensation system and passive compensation system that system is connected with load System;
The passive compensation system includes the horizontal passive cylinder 2 for being set to 1 top of offshore operations platform, the nothing with passive cylinder 2 The connected Storage Unit of rod cavity hydraulic fluid port;The Active Compensation system includes active cylinder 3, rod chamber hydraulic fluid port and nothing with active cylinder 3 The connected hydraulic circuit system of rod cavity hydraulic fluid port, the detection unit for detecting 1 motion state of offshore operations platform, analysis detection unit hair Carry out signal and sends the controller 4 of instruction to hydraulic circuit system;The rodless cavity cylinder body of the active cylinder 3 horizontally extends into passive cylinder Piston rod in 2 cylinder body as passive cylinder, at the cylinder body rear portion of active cylinder 3 equipped with a piston 5, the piston 5 is by passive cylinder 2 Cylinder body be divided into rod chamber and rodless cavity;
The load hangs system and includes the first movable pulley 6 being set on 3 piston rod of active cylinder and the second movable pulley 7, sets The first fixed pulley 8 and the second fixed pulley 9 in 1 top of offshore operations platform, one end of hawser are fixed on the first fixed pulley 8, The other end successively bypass after the second movable pulley 7, the first fixed pulley 8, the first movable pulley 6, the second fixed pulley 9 with undersea repeaters 10 It is connected, underwater robot 11 passes through in another cable suspended under water repeater 10.The movable pulley and fixed pulley cooperate, It converts underwater units moving displacement to a quarter of heave compensation moving displacement, greatly improves the sensitivity of compensation, And the length of compensation device is effectively shortened, bit shift compensation stroke is improved, more complicated sea situation is adapted to.
The Storage Unit includes gas-liquid accumulator 12 and gas cylinder group 13, the hydraulic fluid port of gas-liquid accumulator 12 and passive cylinder 2 Rodless cavity hydraulic fluid port be connected, the port of gas-liquid accumulator 12 is connected with gas cylinder group 13.
The detection unit include IMU motion sensor 14 on the offshore operations platform 1, be set to active cylinder 3 and by Displacement sensor 15 on dynamic 2 piston rod of cylinder is set between undersea repeaters 10 and the second fixed pulley 9 and undersea repeaters 10 Tension sensor 16 between underwater robot 11 on hawser, by collecting each square signal combined processing, so that heave compensation System is more accurate.The displacement of Heaving Signal, hydraulic cylinder piston rod motor message and repeater from offshore operations platform 1 is believed Number, then pass through information processing, instruction order outflow to control hydraulic circuit is passed through into control rod chamber and rodless cavity Oil circuit on-off, thus starting and closing active compensation, and oil liquid flow and pressure are controlled by displacement signal on sensor Power, to improve degree of regulation.
The hydraulic circuit system includes the active cylinder rodless cavity petroleum pipeline 17 being connected with the rodless cavity hydraulic fluid port of active cylinder 3, Active cylinder rodless cavity petroleum pipeline 17 is pierced by from the rodless cavity casing wall of passive cylinder 2 to be connected with the first hydraulic fluid port of three-position four-way valve 18 afterwards, The rod chamber hydraulic fluid port of active cylinder 3 is connected with the second hydraulic fluid port of three-position four-way valve 18, and the third hydraulic fluid port of three-position four-way valve 18 is through variable Pump 19 is connected with fuel tank 20, and the 4th hydraulic fluid port of three-position four-way valve 18 is also connected with fuel tank 20.
There are petroleum pipeline sealing pipeline 21, the petroleum pipeline sealing pipeline in 17 outer cover of active cylinder rodless cavity petroleum pipeline 21 connect with passive cylinder cylinder body external screw thread, connect with outer oil circuit internal screw thread
Embodiment 2:
As shown in Figure 2, the present embodiment difference from example 1 is that:The first of connection three-position four-way valve 18 The oil circuit of 3 rod chamber hydraulic fluid port of hydraulic fluid port and active cylinder and the 3 rod chamber hydraulic fluid port of the second hydraulic fluid port and active cylinder for connecting three-position four-way valve 18 Oil circuit between reverse parallel connection there are two counterbalance valve 22, two counterbalance valves 22 constitute differential circuits, and it is stable and subtract to be able to maintain oil circuit Few hydraulic shock, is respectively provided with a unloading valve 23 being connected with fuel tank 20 on each 22 oil circuit of counterbalance valve.
Pipe on pipeline between variable pump 19 and fuel tank 20, between the 4th hydraulic fluid port and fuel tank 20 of three-position four-way valve 18 Road is respectively equipped with a return filter 24, and a safety valve 25 is parallel between the oil outlet and oil inlet of variable pump 19.
The input terminal of the controller 4 is connected with IMU motion sensor 14, displacement sensor 15, tension sensor 16, control The control terminal of device 4 processed is connected with the control terminal of three-position four-way valve 18, counterbalance valve 22, unloading valve 23.
When being in preferable sea situation, when deep compensation demand is smaller, passive heave compensation system takes the lead in starting, passive cylinder 2 into Row automatically to the left or moves right, the displacement sensor 15 being located on passive 2 piston rod of cylinder (i.e. active cylinder cylinder body front) Motor message is transmitted to controller 4.
When sea situation becomes more severe, passive compensation system is not enough to provide compensation precision or heave movement emergency case When needing sensitiveer compensation, actively deep compensation system collects the signal of processing according to controller 4, starts active compensation System, signal are transferred into hydraulic circuit system, and the oil sources for exporting constant pressure enters the rodless cavity of passive cylinder 2 or has bar Chamber, to complete actively deep compensation process.
It improves to sea situation, the passive cylinder 2 of passive heave compensation system starts to move toward middle position, passes to be displaced in active cylinder 3 After sensor 15 is returned the completion processing of signal transfer control 4, the active cylinder 3 of Active Heave Compensation System starts in recurrence again Position movement, completes heave compensation overall process.
The present invention is based on the passive heave compensation systems of the master of combined type two-stage hydraulic cylinder, effectively reduce compensation device space Big problem is occupied, and after main passive heave compensation system complete system combination, main passive heave compensation can be in adjustment process Middle collaboration uses, and considerably reduces power consumption, has saved cost, and improve compensation precision, and control is flexible.
Above-mentioned specific embodiment cannot function as limiting the scope of the invention, for the technology people of the art For member, any alternate modification or transformation made to embodiment of the present invention are fallen within the scope of protection of the present invention.
Place is not described in detail by the present invention, is the well-known technique of those skilled in the art of the present technique.

Claims (7)

1. a kind of half Active Heave Compensation System based on combined type two-stage hydraulic cylinder, it is characterised in that:Including being installed on sea Load on operating platform hangs system, hangs the Active Compensation system and passive compensation system that system is connected with load;
The passive compensation system includes the horizontal passive cylinder for being set to offshore operations table top, the rodless cavity hydraulic fluid port with passive cylinder Connected Storage Unit;The Active Compensation system includes active cylinder, rod chamber hydraulic fluid port and rodless cavity hydraulic fluid port phase with active cylinder Hydraulic circuit system even, detect the detection unit of offshore operations platform motion state, analysis detection unit sends signal and to Hydraulic circuit system sends the controller of instruction;The rodless cavity cylinder body of the active cylinder horizontally extends into conduct in the cylinder body of passive cylinder The piston rod of passive cylinder is equipped with a piston at the cylinder body rear portion of active cylinder, and the cylinder body of passive cylinder is divided by the piston bar Chamber and rodless cavity;
The load hangs system and includes the first movable pulley being set on active cylinder piston bar and the second movable pulley, is set to marine behaviour Make the first fixed pulley and the second fixed pulley of table top, one end of hawser is fixed on the first fixed pulley, the other end successively around It is connected after crossing the second movable pulley, the first fixed pulley, the first movable pulley, the second fixed pulley with undersea repeaters, underwater robot is logical Another cable suspended is crossed under water on repeater.
2. a kind of half Active Heave Compensation System based on combined type two-stage hydraulic cylinder according to claim 1, feature It is:The Storage Unit includes gas-liquid accumulator and gas cylinder group, the rodless cavity oil of the hydraulic fluid port of gas-liquid accumulator and passive cylinder Mouth is connected, and the port of gas-liquid accumulator is connected with gas cylinder group.
3. a kind of half Active Heave Compensation System based on combined type two-stage hydraulic cylinder according to claim 1, feature It is:The detection unit includes the IMU motion sensor being set on offshore operations platform, is set to active cylinder and passive the cylinder piston Displacement sensor on bar is set between undersea repeaters and the second fixed pulley and between undersea repeaters and underwater robot Tension sensor on hawser.
4. a kind of half Active Heave Compensation System based on combined type two-stage hydraulic cylinder according to claim 1, feature It is:The hydraulic circuit system includes the active cylinder rodless cavity petroleum pipeline being connected with the rodless cavity hydraulic fluid port of active cylinder, active cylinder Rodless cavity petroleum pipeline is pierced by from the rodless cavity casing wall of passive cylinder to be connected with the first hydraulic fluid port of three-position four-way valve afterwards, and active cylinder has bar Chamber hydraulic fluid port is connected with the second hydraulic fluid port of three-position four-way valve, and the third hydraulic fluid port of three-position four-way valve is connected through variable pump with fuel tank, and three 4th hydraulic fluid port of four-way valve is also connected with fuel tank.
5. a kind of half Active Heave Compensation System based on combined type two-stage hydraulic cylinder according to claim 4, feature It is:Connection three-position four-way valve the first hydraulic fluid port and active cylinder rod chamber hydraulic fluid port oil circuit with connect the second of three-position four-way valve There are two counterbalance valves, two counterbalance valves to constitute differential circuit for reverse parallel connection between hydraulic fluid port and the oil circuit of active cylinder rod chamber hydraulic fluid port, A unloading valve being connected with fuel tank is respectively provided on each counterbalance valve oil circuit.
6. a kind of half Active Heave Compensation System based on combined type two-stage hydraulic cylinder according to claim 4, feature It is:It is set respectively on pipeline on pipeline between variable pump and fuel tank, between the 4th hydraulic fluid port and fuel tank of three-position four-way valve Oil strainer once is parallel with a safety valve between the oil outlet and oil inlet of variable pump.
7. a kind of half Active Heave Compensation System based on combined type two-stage hydraulic cylinder according to claim 1, feature It is:There is a petroleum pipeline sealing pipeline in active cylinder rodless cavity petroleum pipeline outer cover, the petroleum pipeline sealing pipeline and passive The connection of cylinder cylinder body external screw thread, connect with outer oil circuit internal screw thread.
CN201810715760.9A 2018-06-29 2018-06-29 A kind of half Active Heave Compensation System based on combined type two-stage hydraulic cylinder Pending CN108820154A (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN115818490A (en) * 2022-11-22 2023-03-21 哈尔滨工程大学 Semi-active heave compensation device for ROV release and recovery

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