CN105804675B - Marine drilling compensates the fluid power system of winch - Google Patents
Marine drilling compensates the fluid power system of winch Download PDFInfo
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- CN105804675B CN105804675B CN201610382999.XA CN201610382999A CN105804675B CN 105804675 B CN105804675 B CN 105804675B CN 201610382999 A CN201610382999 A CN 201610382999A CN 105804675 B CN105804675 B CN 105804675B
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- 238000005553 drilling Methods 0.000 title claims abstract description 44
- 239000012530 fluid Substances 0.000 title claims abstract description 44
- 230000002706 hydrostatic effect Effects 0.000 claims abstract description 25
- 230000033001 locomotion Effects 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 230000009977 dual effect Effects 0.000 claims description 35
- 238000006073 displacement reaction Methods 0.000 claims description 27
- 206010008469 Chest discomfort Diseases 0.000 claims description 18
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 239000002828 fuel tank Substances 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 4
- 208000002925 dental caries Diseases 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000004146 energy storage Methods 0.000 abstract description 8
- 241001074085 Scophthalmus aquosus Species 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 description 5
- 101100408352 Drosophila melanogaster Plc21C gene Proteins 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
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- 238000005259 measurement Methods 0.000 description 1
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- 230000000737 periodic effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/002—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling
- E21B19/004—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling supporting a riser from a drilling or production platform
- E21B19/006—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling supporting a riser from a drilling or production platform including heave compensators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/08—Driving gear incorporating fluid motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
- B66D1/22—Planetary or differential gearings, i.e. with planet gears having movable axes of rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Analytical Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid-Pressure Circuits (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses the fluid power system that a kind of marine drilling compensates winch, heave compensation function is completed using Hydrostatic secondary control element and passive hydraulic cylinder joint driving winch, automatic bit feed function is completed using brill fluid motor-driven winch is sent.In compensation process, whole dead loads of rig are undertaken using passive hydraulic cylinder and its liquid gas energy storage equipment, and load gravitional force is carried out periodically to reclaim and release；Hydrostatic secondary control element manipulation overcomes remaining load in compensation process, and carry out periodically recovery and release to the inertia kinetic energy of winch rotary system using liquid gas energy storage equipment in constant pressure network.In brill motion process is sent, using sending drilling fluid pressure motor and its liquid gas energy storage equipment to reclaim drill load gravitional force, then discharged when lifting rig traveling system.Compact overall structure of the present invention, the operating efficiency height of hydraulic energy recovery system, service life are long, and engine power and energy consumption are low.
Description
Technical field：
It is a kind of reclaimed with hydraulic energy and electricity the present invention relates to the fluid power system that a kind of marine drilling compensates winch
The drive device that liquid control technology is characterized.
Background technology：
The floating drilling rig that offshore oil drilling is used will be produced periodically in the presence of the natural causes such as stormy waves
Heave movement, so as to drive drilling equipment and drill string to carry out heave movement, have impact on drilling efficiency, add drilling cost,
Even cause security incident.Therefore a set of heave compensation system is must be equipped with floating drilling platform or drill ship, for stable
Bottom Hole Bit Weight In A, mitigates rig dynamic loading, and the quality of its combination property directly affects the development cost of offshore oil.Heave compensation
System be integrate mechanical, electrical, air-liquid, automatically control, the complex equipment of Intelligent Measurement, with high-tech, high investment, Gao Feng
Dangerous the features such as.
Heave compensation system can be divided into according to its installation site：Liter between crown-block heave compensator, tourist bus and hook
Heavy compensation device and winch heave compensator；Wherein winch heave compensation technology is unique with it as a new technology
Performance advantage, including drilling efficiency is high, transmission is simple, low equipment center of gravity, platform load and space-consuming it is few etc. performance it is excellent
Gesture, is gradually paid close attention in the industry.
In recent years, it is external that larger progress, and existing electronic benefit are had been achieved with to the research that marine drilling compensates winch
Repay winch product to emerge, effective application has been obtained on newly-built deepwater drilling platform, its cardinal principle is in traditional well drilling hoist
On the basis of increase power of motor, using alternating-current variable frequency motor active compensation techniques, multiple electric motors joint driving passes through sensor
By drill string position and platform Heaving Signal feeding controller, the rotating speed of control winch motor and steering, realize heave compensation in real time
Function；Electric compensating winch has many performance advantages, but there is also installed power and energy consumption be too high, motor feels hot
Greatly, the technical problem such as variable-frequency motor poor in anti-explosion property.
The content of the invention：
The fluid power system of winch is compensated the invention aims to provide a kind of marine drilling, offshore oil brill is met
The performance requirement of well, while the installed power and energy consumption of the system of reduction, raising marine drilling operating efficiency.
To achieve the above object, the present general inventive concept is：Joined using Hydrostatic secondary control element and passive hydraulic cylinder
The external toothing of driving differential planetary decelerator is closed, heave compensation motion is completed；Subtracted using brill fluid motor-driven differential planetary is sent
The sun gear of fast device, completes automatic bit feed motion；So that planet carrier driving winch completes compound motion.In heave compensation motion
During, whole dead loads of rig are undertaken using passive hydraulic cylinder and its liquid gas energy storage equipment, Hydrostatic secondary control is utilized
Element overcomes remaining load, and the gravitional force of drill load is moved with the inertia of winch rotary system using liquid gas energy storage equipment
It can carry out periodically reclaiming and release；In automatic bit feed motion process, using sending drilling fluid pressure motor and its liquid gas energy storage equipment
Come the gravitional force for reclaiming and storing drill load, then discharged when lifting rig traveling system.
The technical solution adopted in the present invention is by engine, generator, Active Compensation motor, passive compensation hydraulic pressure horse
On the basis of reaching, sending and bore motor, the winch heave compensator that differential planetary decelerator, roller, hydraulic disc brake, PLC are constituted
The hydraulic-driven scheme developed, Active Compensation motor is replaced with Hydrostatic secondary control element, and quilt is replaced with passive hydraulic cylinder
Dynamic compensation hydraulic motor, send brill motor with sending drilling fluid pressure motor to replace, air-liquid converter and height is replaced with dual Piston accumulator
Position fuel tank, also add constant pressure variable displacement pump, overflow valve, pressure-reducing valve, electrohydraulic servo valve, variable delivery hydraulic cylinder, obliquity sensor, pressure release
Valve, stepper motor, screw rod, nut, flange.The external toothing power input shaft of Hydrostatic secondary control element and differential planetary decelerator
Mechanically connect；The piston rod of passive hydraulic cylinder and one end of shaft coupling are mechanically connected, and the other end and the screw rod mechanism of shaft coupling connect
Connect, screw rod constitutes one end mechanical connection of rolling screw pair, nut and flange, the other end and the external toothing power of flange with nut
Input shaft is mechanically connected；Drilling fluid pressure motor is sent to be connected with the sun gear power input shaft of differential planetary decelerator；Hydraulic pressure is secondary to be adjusted
The piston rod of the swash plate and variable delivery hydraulic cylinder that save element is mechanically connected；The swash plate and stepper motor machinery for sending drilling fluid pressure motor connect
Connect；Engine is mechanically connected with constant pressure variable displacement pump；Piston and same work in dual Piston accumulator high pressure chest and low pressure chamber
Stopper rod is mechanically connected, and the piston movement in two cavitys is synchronous.Obliquity sensor is connected with the piston rod of variable delivery hydraulic cylinder, rotation
Encoder is connected with external toothing power input shaft, and measuring device of underwell drill pressure is arranged in the drill collar of drilling tool bottom, motion reference
Unit is connected firmly with drilling platforms.The oil inlet of constant pressure variable displacement pump is connected with fuel tank, and an oil-out of constant pressure variable displacement pump is by subtracting
The P mouths connection of pressure valve and electrohydraulic servo valve；The A mouths of electrohydraulic servo valve and B mouthfuls are connected with a mouths of variable delivery hydraulic cylinder and b mouthfuls respectively,
The T mouths of electrohydraulic servo valve are connected with fuel tank；The high pressure of another oil-out of constant pressure variable displacement pump and the first dual Piston accumulator
Chamber is connected；Overflow valve is parallel to constant pressure variable displacement pump two ends；The high pressure hydraulic fluid port and low pressure hydraulic fluid port of Hydrostatic secondary control element respectively with
The high pressure chest of first dual Piston accumulator, low pressure chamber connection；Send the high pressure hydraulic fluid port and low pressure hydraulic fluid port of drilling fluid pressure motor respectively with
The high pressure chest of first dual Piston accumulator, low pressure chamber connection；The rodless cavity of passive hydraulic cylinder, rod chamber respectively with the second dual-active
The high pressure chest of plug accumulator, low pressure chamber connection；First gas cylinder air cavity respectively with the first dual Piston accumulator, first
Relief valve is connected；Air cavity, the second relief valve of second gas cylinder respectively with the second dual Piston accumulator are connected；Fill valve
The oil-out connection of one end and constant pressure variable displacement pump, the other end is connected with the high pressure chest of the second dual Piston accumulator.Inclination angle is sensed
Device, rotary encoder, the electric signal access PLC of motion reference units and measuring device of underwell drill pressure, PLC output control signals with
Electrohydraulic servo valve, stepper motor, Fill valve connection.
The present invention compared with prior art, with following beneficial effect：
1. using hydraulic driving mode, constant pressure variable displacement pump is directly driven by engine, energy conversion links are reduced；Hydraulic pressure
System uses volumetric void fraction mode, and no spill losses improves the transmission efficiency of system；In addition, hydraulic system power density is big,
Compact conformation, reduces platform load and space-consuming.
2. combining driving winch with passive hydraulic cylinder using Hydrostatic secondary control element realizes heave compensation function, quilt is utilized
Hydrodynamic cylinder pressure undertakes whole dead loads of rig, reduces the power output and energy consumption of engine and Hydrostatic secondary control element,
Also with leakage rate is small, energy recovery efficiency is high, long working life advantage；Overcome its over-carriage using Hydrostatic secondary control element
Lotus, and recycle and reuse is carried out to the inertia kinetic energy of winch rotary system, it reduce further the power and energy consumption of engine.
3. sending drilling fluid pressure motor to work in hydraulic pressure pump condition, the load gravitional force storage during boring will be sent to be filled to accumulation of energy
In putting, then discharged when lifting rig traveling system, reduce further the power and energy consumption of engine.
4. suction of the Hydrostatic secondary control element in pump condition is improved as energy storage equipment using dual Piston accumulator
Oily ability, while reducing the pressure oscillation of high-voltage oil cavity and low pressure oil pocket, improves the energy storage capacity of accumulator.
Brief description of the drawings：
Further describe the present invention with reference to the accompanying drawings and examples.
Fig. 1 is the schematic diagram that marine drilling proposed by the invention compensates winch fluid power system.
In figure：1-constant pressure variable displacement pump；2-engine；3-overflow valve；4-fuel tank；5-pressure-reducing valve；6.1-the first pair
Piston accumulator；6.2-the second dual Piston accumulator；7.1-the first gas cylinder；7.2-the second gas cylinder；
8.1-the first relief valve；8.2-the second relief valve；9-Fill valve；10-passive hydraulic cylinder；11-shaft coupling；12-screw rod；
13-nut；14-flange；15-stepper motor；16-send drilling fluid pressure motor；17-obliquity sensor；18-variable delivery hydraulic
Cylinder；19-electrohydraulic servo valve；20-Hydrostatic secondary control element；21—PLC；22-rotary encoder；23-downhole weight on bit is surveyed
Measure device；24-motion reference units；25-differential planetary decelerator；26-external toothing power input shaft；27-sun moves in turn
Power input shaft；28-planet carrier power output shaft；G-air cavity；H-high pressure chest；L-low pressure chamber.
Embodiment：
Further describe the present invention with reference to the accompanying drawings and examples.
As shown in figure 1, fluid power system mainly includes Hydrostatic secondary control element 20, passive hydraulic cylinder 10, send drilling fluid
Pressure motor 16, the first dual Piston accumulator 6.1, the second dual Piston accumulator 6.2, the first gas cylinder 7.1, the second high pressure
Gas cylinder 7.2, constant pressure variable displacement pump 1, variable delivery hydraulic cylinder 18, electrohydraulic servo valve 19, stepper motor 15.During installation, Hydrostatic secondary control
The external toothing power input shaft 26 of element 20 and differential planetary decelerator 25 is mechanically connected, the swash plate of Hydrostatic secondary control element 20
Mechanically connected with the piston rod of variable delivery hydraulic cylinder 18；The piston rod of passive hydraulic cylinder 10 is mechanically connected with one end of shaft coupling 11,
The other end of shaft coupling 11 is mechanically connected with screw rod 12, and screw rod 12 constitutes rolling screw pair, nut 13 and flange 14 with nut 13
One end mechanically connect, the other end and the external toothing power input shaft 26 of flange 14 are mechanically connected；Send drilling fluid pressure motor 16 and poor
The sun gear power input shaft 27 of dynamic planetary reduction gear 25 is mechanically connected, and send the swash plate and the machine of stepper motor 15 of drilling fluid pressure motor 16
Tool is connected；Engine 2 is mechanically connected with constant pressure variable displacement pump 1.Obliquity sensor 17 is connected with the piston rod of variable delivery hydraulic cylinder 18, rotation
Turn encoder 22 to be connected with external toothing power input shaft 26, measuring device of underwell drill pressure 23 is arranged in the drill collar of drilling tool bottom,
Motion reference units 24 are connected firmly with drilling platforms.
The oil inlet of constant pressure variable displacement pump 1 is connected with fuel tank 4, and the oil-out of constant pressure variable displacement pump 1 is watched by pressure-reducing valve 5 with electro-hydraulic
Take the P mouths connection of valve 19, overflow valve 3 is parallel to the two ends of constant pressure variable displacement pump 1, the A mouths of electrohydraulic servo valve 19, B mouthfuls respectively with change
The a mouths of amount hydraulic cylinder 18, b mouthfuls of connections, the T mouths of electrohydraulic servo valve 19 are connected with fuel tank 4；Another of constant pressure variable displacement pump 1 is fuel-displaced
Mouth is connected with the high pressure chest H of the first dual Piston accumulator 6.1, high pressure hydraulic fluid port, the low pressure hydraulic fluid port of Hydrostatic secondary control element 20
High pressure chest H, low pressure chamber L respectively with the first dual Piston accumulator 6.1 is connected；Send the high pressure hydraulic fluid port, low of drilling fluid pressure motor 16
High pressure chest H, the low pressure chamber L of force feed mouth respectively with the first dual Piston accumulator 6.1 are connected；The rodless cavity of passive hydraulic cylinder 10,
High pressure chest H, the low pressure chamber L of rod chamber respectively with the second dual Piston accumulator 6.2 are connected；First gas cylinder 7.1 respectively with
The air cavity G of first dual Piston accumulator 6.1, the first relief valve 8.1 are connected；Second gas cylinder 7.2 respectively with the second dual-active
The air cavity G of plug accumulator 6.2, the second relief valve 8.2 are connected；One end of Fill valve 9 connects with the oil-out of constant pressure variable displacement pump 1
Connect, the other end is connected with the high pressure chest H of the second dual Piston accumulator 6.2.Rotary encoder 22, measuring device of underwell drill pressure
23rd, motion reference units 24, the electric signal access PLC21 of obliquity sensor 17, PLC21 output control electric signal are watched with electro-hydraulic
Valve 19, stepper motor 15, Fill valve 9 is taken to connect.Second dual Piston accumulator 6.2 is with the second gas cylinder 7.2 by passive
Hydraulic cylinder 10 undertakes the rig dead load during compensation campaign；First dual Piston accumulator 6.1, the first gas cylinder 7.1
And the composition constant pressure network of constant pressure variable displacement pump 1, drive Hydrostatic secondary control element 20 to overcome remaining load during compensation campaign,
And driving send drilling fluid pressure motor 16 to overcome the rig load sent during boring.
The operation principle of the present invention is as follows：
When floating marine drilling platforms rises with wave, sunk, the compensation that PLC21 is detected according to rotary encoder 22 is transported
The hydraulic pressure that dynamic angular displacement signal, the platform heave movement signal of the detection of motion reference units 24, swashplate angle sensor 17 are detected
Secondary Control element swash plate angle signal, and control signal is sent to electrohydraulic servo valve 19 according to the control strategy made, lead to
Overregulate the position of the piston rod of variable delivery hydraulic cylinder 18 to control the swashplate angle of Hydrostatic secondary control element 20, so as to drive external tooth
Circle power input shaft 26 is forward and reverse to be rotated to realize heave compensation function.During compensation campaign, passive hydraulic cylinder 10 and liquid
Press the driving external toothing jointly of Secondary Control element 20；Passive hydraulic cylinder 10 is changed the linear motion of piston rod by worm drive
For the rotary motion of external toothing power input shaft 26, the power that piston rod is exported is converted into moment of torsion and acts on the input of external toothing power
On axle 26, whole dead loads of rig are assume responsibility for, and utilize 7.2 pairs of the second dual Piston accumulator 6.2 and the second gas cylinder
Drill load gravitional force carries out recycle and reuse；Hydrostatic secondary control element 20 overcomes its over-carriage during compensation campaign
Lotus, and the inertia kinetic energy of winch rotary system is returned using the first dual Piston accumulator 6.1 and the first gas cylinder 7.1
Receive with recycling：When winch needs retarded motion, Hydrostatic secondary control element 20 works in hydraulic pressure pump condition, so that winch
And the inertia kinetic energy of assembly pulley is stored in the first dual Piston accumulator 6.1 and the first gas cylinder 7.1, when winch accelerates to transport
When dynamic, Hydrostatic secondary control element 20 works in hydraulic motor operating mode, discharges the energy stored.
Rig send brill during, the Bottom Hole Bit Weight In A signal that PLC21 is detected according to measuring device of underwell drill pressure 23, and root
Control signal is sent to stepper motor 15 according to the control strategy made, controls to send by adjusting the angular displacement of stepper motor 15
The swashplate angle of drilling fluid pressure motor 16, makes it drive sun gear power input shaft 27 continuously to rotate, and realizes permanent the pressure of the drill automatic bit feed,
Simultaneously the drill load gravitional force during boring will be sent to store to the first dual Piston accumulator 6.1 and the first gas cylinder
7.1 in.
The present invention by hydraulic energy-saving actuation techniques be applied to marine drilling compensate winch, by Hydrostatic secondary control element,
The system of the devices such as hydraulic cylinder, constant pressure variable displacement pump, accumulator, bolt and nut composition drives winch, realize heave compensation and
While automatic bit feed function, periodic recovery has been carried out to drill load gravitional force and winch rotary system inertia kinetic energy
With recycling, the efficiency and service life of hydraulic energy recovery system are improved, the installed power and energy of compensation winch is reduced
Consumption；In addition, the present invention uses hydraulic volume control mode, have the advantages that transmission efficiency, compact conformation, explosion-proof performance are good.
Claims (4)
1. a kind of marine drilling compensates the fluid power system of winch, including constant pressure variable displacement pump (1), engine (2), overflow valve
(3), fuel tank (4), pressure-reducing valve (5), the first dual Piston accumulator (6.1), the second dual Piston accumulator (6.2), first high
It is air bottle (7.1), the second gas cylinder (7.2), the first relief valve (8.1), the second relief valve (8.2), Fill valve (9), passive
Hydraulic cylinder (10), shaft coupling (11), screw rod (12), nut (13), flange (14), stepper motor (15), send drilling fluid pressure motor
(16), obliquity sensor (17), variable delivery hydraulic cylinder (18), electrohydraulic servo valve (19), Hydrostatic secondary control element (20), PLC
(21), rotary encoder (22), measuring device of underwell drill pressure (23), motion reference units (24), differential planetary decelerator (25),
Characterized in that, external toothing power input shaft (26) machinery of Hydrostatic secondary control element (20) and differential planetary decelerator (25)
Connection, the swash plate of Hydrostatic secondary control element (20) is mechanically connected with the piston rod of variable delivery hydraulic cylinder (18)；Passive hydraulic cylinder
(10) one end of piston rod and shaft coupling (11) is mechanically connected, and the other end and the screw rod (12) of shaft coupling (11) are mechanically connected,
Screw rod (12) constitutes rolling screw pair with nut (13), and one end of nut (13) and flange (14) is mechanically connected, flange (14)
The other end is mechanically connected with external toothing power input shaft (26)；Send drilling fluid pressure motor (16) and differential planetary decelerator (25) too
Sun wheel power input shaft (27) is mechanically connected, and the swash plate and stepper motor (15) for sending drilling fluid pressure motor (16) are mechanically connected；Start
Machine (2) is mechanically connected with constant pressure variable displacement pump (1)；Obliquity sensor (17) is connected with the piston rod of variable delivery hydraulic cylinder (18), rotation
Encoder (22) is connected with external toothing power input shaft (26), and measuring device of underwell drill pressure (23) is arranged on the drill collar of drilling tool bottom
Interior, motion reference units (24) are connected firmly with drilling platforms；
The oil inlet of the constant pressure variable displacement pump (1) is connected with fuel tank (4), and the oil-out of constant pressure variable displacement pump (1) passes through pressure-reducing valve (5)
It is connected with the P mouths of electrohydraulic servo valve (19), overflow valve (3) is parallel to the two ends of constant pressure variable displacement pump (1), electrohydraulic servo valve (19)
A mouthfuls and B mouthfuls are connected with a mouths of variable delivery hydraulic cylinder (18) and b mouthfuls respectively, and the T mouths of electrohydraulic servo valve (19) are connected with fuel tank (4)；
Another oil-out of constant pressure variable displacement pump (1) is connected with the high pressure chest H of the first dual Piston accumulator (6.1), and hydraulic pressure is secondary to be adjusted
High pressure chest H, the low pressure chamber L of the high pressure hydraulic fluid port, low pressure hydraulic fluid port of element (20) respectively with the first dual Piston accumulator (6.1) is saved to connect
Connect；Send the high pressure hydraulic fluid port of drilling fluid pressure motor (16), low pressure hydraulic fluid port high pressure chest H respectively with the first dual Piston accumulator (6.1),
Low pressure chamber L connections；The rodless cavity of passive hydraulic cylinder (10), the high pressure of rod chamber respectively with the second dual Piston accumulator (6.2)
Chamber H, low pressure chamber L connections；First gas cylinder (7.1) air cavity G respectively with the first dual Piston accumulator (6.1), first let out
Pressure valve (8.1) is connected；Second gas cylinder (7.2) air cavity G respectively with the second dual Piston accumulator (6.2), the second pressure release
Valve (8.2) is connected；One end of Fill valve (9) is connected with the oil-out of constant pressure variable displacement pump (1), and the other end and the second dual Piston store
The high pressure chest H connections of energy device (6.2)；Obliquity sensor (17), rotary encoder (22), measuring device of underwell drill pressure (23) and fortune
The electric signal of dynamic reference unit (24) accesses PLC (21), PLC (21) output control electric signal and electrohydraulic servo valve (19), step
Stepper motor (15), Fill valve (9) connection.
2. fluid power system according to claim 1, it is characterised in that the first dual Piston accumulator (6.1)
High pressure chest H and low pressure chamber L piston mechanically connected with same piston rod, the piston movement in two cavitys is synchronous, works as liquid
When pressing the high pressure chest H of fluid the first dual Piston accumulator (6.1) of inflow of Secondary Control element (20) high pressure chest, the first dual-active
Plug accumulator (6.1) is while low pressure chamber L fluid to be pressed into the low pressure chamber of Hydrostatic secondary control element (20).
3. fluid power system according to claim 1, it is characterised in that the piston rod of the passive hydraulic cylinder (10) leads to
Cross shaft coupling (11), screw rod (12), nut (13), flange (14) to be connected with external toothing power input shaft (26), undertake rig
Whole dead loads.
4. fluid power system according to claim 1, it is characterised in that nut (12) is with screw rod (13) using rolling spiral shell
The kind of drive is revolved, the linear reciprocating motion of passive hydraulic cylinder (10) piston rod is converted into the past of external toothing power input shaft (26)
Multiple rotary motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610382999.XA CN105804675B (en) | 2016-06-01 | 2016-06-01 | Marine drilling compensates the fluid power system of winch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610382999.XA CN105804675B (en) | 2016-06-01 | 2016-06-01 | Marine drilling compensates the fluid power system of winch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105804675A CN105804675A (en) | 2016-07-27 |
| CN105804675B true CN105804675B (en) | 2017-10-20 |
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Family Applications (1)
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| CN106321534B (en) * | 2016-09-21 | 2018-02-16 | 中国石油大学(华东) | Marine floating type well drilling traveling block hook heave compensator |
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| CN112125194B (en) * | 2020-09-23 | 2022-02-01 | 中国石油大学(华东) | Energy-saving driving system of ocean drilling compensation winch |
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| CN113357234B (en) * | 2021-07-09 | 2023-01-17 | 合肥工业大学 | Energy recovery system of energy accumulator group engineering machinery rotating device based on digital control |
| CN113942951A (en) * | 2021-09-24 | 2022-01-18 | 浙江汉德瑞智能科技有限公司 | Marine winch heave compensation device and method |
| CN114427551B (en) * | 2022-03-14 | 2023-06-30 | 合肥工业大学 | Energy accumulator-based energy recovery system of hydraulic system of anchor winch |
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