CN205772987U - A kind of semi-active type marine drilling compensates winch - Google Patents
A kind of semi-active type marine drilling compensates winch Download PDFInfo
- Publication number
- CN205772987U CN205772987U CN201620752903.XU CN201620752903U CN205772987U CN 205772987 U CN205772987 U CN 205772987U CN 201620752903 U CN201620752903 U CN 201620752903U CN 205772987 U CN205772987 U CN 205772987U
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- valve
- hydraulic cylinder
- load
- winch
- proportional throttle
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Abstract
The utility model discloses a kind of semi-active type marine drilling and compensate winch, utilize composite hydraulic cylinder to drive winch to complete heave compensation function.In compensation process, the high-voltage oil liquid of accumulator connects with the outer shell rodless cavity of composite hydraulic cylinder, internal cylinder piston rod provides a basicly stable support force, balances each other with rig dead load；The high-voltage oil liquid of variable pump output leads to outer shell rod chamber or the inner casing rodless cavity of composite hydraulic cylinder through reversal valve, thus provides an additional force that can control to internal cylinder piston rod, for overcoming the frictional resistance in compensation process and system inertia.Load sensitive system is automatically adjusted variable pump output pressure and matches with load desirable pressure, PLC realizes system output stream amount according to the valve port opening of platform Heaving Signal and winch tach signal regulation proportional throttle valve and matches with load necessary flow, it is ensured that system will not produce overpressure and flow.This utility model compact conformation, good energy-conserving effect.
Description
Technical field
This utility model relates to the hydraulic control system that electro-hydraulic technology is characterized, and particularly relates to a kind of semi-active type offshore drill
Well compensates winch.
Background technology
Floating drilling platform heave movement under wave action, drives drill string to pump, and causes and bores on drill bit
The change of pressure, can affect drilling efficiency, reduces drill tool life；Heave movement at severe sea condition lower platform can make the drilling well cannot be just
Often carry out.Therefore, floating drilling platform needs to arrange heave compensation system, in order to reduce the platform heave movement shadow to drill string
Ring.
Heave compensation system can be divided into according to its installation site: the liter between crown-block heave compensator, tourist bus and hook
Heavy compensation device and winch heave compensator；Wherein winch heave compensation technology is as a new technique, has it unique
Performance advantage, high including drilling efficiency, transmission simple, equipment center of gravity is low, platform load with occupy little space etc. performance excellent
Gesture, is paid close attention to the most in the industry.
Active heave compensation system has good compensation effect and stronger adaptability, but due to drill string quality
Greatly, pump frequently, therefore compensation process consumes big energy.Passive type heave compensation system is in compensation process
Substantially the system that need not is additionally provided energy, and system is simple, but compensation effect is undesirable, exists certain delayed existing
As.Semi-active type heave compensation can both advantage comprehensive, but system structure is complex, manufacturing cost is higher.
Utility model content
The purpose of this utility model is to provide for a kind of semi-active type marine drilling and compensates winch, meets offshore oil drilling
Performance requirement, reduce installed power and the energy consumption of system simultaneously.
The technical scheme that this utility model is used is as follows:
A kind of semi-active type marine drilling compensates winch and includes: load-sensitive hydraulic cylinder, variable pump, electromotor, fuel tank, overflow
Stream valve, check-valves, proportional throttle valve, solenoid directional control valve, Fill valve, PLC, accumulator, loss protecting valve, motion reference units,
Composite hydraulic cylinder, shaft coupling, screw rod, nut, flange, rotary encoder, little gear, winch drum.The piston of composite hydraulic cylinder
Bar is mechanically connected with one end of shaft coupling, and the other end of shaft coupling is connected with screw rod mechanism, and screw rod forms rolling screw with nut
Pair, nut is mechanically connected with one end of flange, and the other end of flange is connected with little gear mechanism, and little gear subtracts through one-stage gear
Speed rear drive winch drum, electromotor is mechanically connected with variable pump.Piston rod one end of load-sensitive hydraulic cylinder is oblique with variable pump
Dish is connected, the spring cavity of load-sensitive hydraulic cylinder and being connected with oil-out and the oil-in of proportional throttle valve respectively without spring cavity；
The oil-in of variable pump is connected with fuel tank, and the oil-out of variable pump is connected with the oiler of proportional throttle valve by check-valves, overflows
Stream valve two ends are connected with oiler and the fuel tank of proportional throttle valve respectively；The oil-out of proportional throttle valve and the P of solenoid directional control valve
Mouth connects, and the A mouth of solenoid directional control valve and B mouth are connected with outer shell rod chamber and the inner casing rodless cavity of composite hydraulic cylinder respectively, electromagnetism
The T mouth connected tank of reversal valve；Another oil-out of proportional throttle valve is connected with accumulator by Fill valve, overflow valve two ends respectively with
Accumulator and fuel tank connect, and accumulator is connected with the outer shell rodless cavity of composite hydraulic cylinder by loss protecting valve；Motion reference list
Unit is fixed on drilling platforms, and rotary encoder is arranged on winch axle, and the signal of motion reference units and rotary encoder is all
It is sent to PLC, PLC output control signal be connected with proportional throttle valve, Fill valve and loss protecting valve.
This utility model compared with prior art, has a following beneficial effect:
Using composite hydraulic cylinder to drive winch to realize semi-active type heave compensation function, the high-voltage oil liquid of accumulator is with compound
The outer shell rodless cavity connection of hydraulic cylinder, provides a basicly stable support force, with rig dead load phase to internal cylinder piston rod
Balance, and the gravitional force of drill load is periodically recycled；Variable pump is through solenoid directional control valve and inner casing rodless cavity
Or outer shell rod chamber fuel feeding, thus provide an additional force that can control to internal cylinder piston rod, it is only used for overcoming compensation process
In frictional resistance and system inertia, thus significantly reduce system energy consumption.Load-sensitive hydraulic cylinder is according to composite hydraulic cylinder
Inner casing rodless cavity or outer shell rod chamber pressure change, the displacement being automatically adjusted piston rod carrys out control variable pump swashplate angle,
The output pressure making variable pump matches with load desirable pressure, the valve port opening of regulation proportional throttle valve, and control system exports
Flow matches with load necessary flow, it is ensured that system will not produce overpressure and flow, reduce further system energy consumption.
Accompanying drawing explanation
The present invention is further described below in conjunction with the accompanying drawings with embodiment.
Fig. 1 is the hydraulic schematic diagram that a kind of semi-active type marine drilling that this utility model is proposed compensates winch.
Fig. 2 is the structural representation of the borehole compensation winch that this utility model is proposed.
In figure: 1 load-sensitive hydraulic cylinder；2 variable pumps；3 electromotors；4 fuel tanks；5 overflow valves；6 non-returns
Valve；7 proportional throttle valves；8 solenoid directional control valves；9 Fill valves；10—PLC；11 overflow valves；12 accumulators；13 lose
Electric protection valve；14 motion reference units；15 composite hydraulic cylinders；16 shaft couplings；17 screw rods；18 nuts；19 methods
Blue；20 rotary encoders；21 little gears；22 winch drums.
Detailed description of the invention
The present invention is further described below in conjunction with the accompanying drawings with embodiment.
Lateral symmetry is used to arrange as in figure 2 it is shown, compensate winch, the piston rod of composite hydraulic cylinder 15 and the one of shaft coupling 16
End is mechanically connected, and the other end of shaft coupling 16 is mechanically connected with screw rod 17, and screw rod 17 and nut 18 form rolling screw pair, nut
18 are mechanically connected with one end of flange 19, and the other end of flange 19 is mechanically connected with little gear 21, and little gear 21 is through one-level tooth
Wheel deceleration rear drive winch drum 22.
As it is shown in figure 1, electromotor 3 is mechanically connected with variable pump 2, piston rod one end of load-sensitive hydraulic cylinder 1 and variable
The swash plate of pump 2 is connected, the spring cavity of load-sensitive hydraulic cylinder 1 and without spring cavity respectively with the oil-out of proportional throttle valve 7 and entering
Hydraulic fluid port connects；The oil-in of variable pump 2 is connected with fuel tank 4, and the oil-out of variable pump 2 is by check-valves 6 and proportional throttle valve 7
Oiler connects, and overflow valve 5 two ends are connected with oiler and the fuel tank 4 of proportional throttle valve 7 respectively；Proportional throttle valve 6 fuel-displaced
Mouthful be connected with the P mouth of solenoid directional control valve 8, the A mouth of solenoid directional control valve 8 and B mouth respectively with the outer shell rod chamber of composite hydraulic cylinder 15
Connect with inner casing rodless cavity, the T mouth connected tank 4 of solenoid directional control valve 8；Another oil-out of proportional throttle valve 7 is by Fill valve 9 and storage
Can connect by device 12, overflow valve 11 two ends are connected with accumulator 12 and fuel tank 4 respectively, and accumulator 12 passes through loss protecting valve 13 with multiple
The outer shell rodless cavity closing hydraulic cylinder 15 connects；Motion reference units 14 is fixed on drilling platforms, and rotary encoder 20 is arranged on
On winch axle, the signal of motion reference units 14 and rotary encoder 20 be all sent to PLC10, PLC10 output control signal with
Proportional throttle valve 7, Fill valve 9 and loss protecting valve 13 connect.The high-voltage oil liquid of accumulator 12 and the outer shell of composite hydraulic cylinder 15
Rodless cavity connects, and internal cylinder piston rod provides a basicly stable support force, balances each other with rig dead load, variable pump 2
Through solenoid directional control valve 8 and inner casing rodless cavity or outer shell rod chamber fuel feeding, thus internal cylinder piston rod provide one can control
Additional force, overcomes the frictional resistance in compensation process and system inertia.Fill valve 9 is arranged on accumulator 12 and proportional throttle valve 7
Between, Fill valve 9 obtains electric, and system is accumulator 12 repairing, and loss protecting valve 13 is arranged on accumulator 12 and composite hydraulic cylinder 15
Between, after system cut-off, loss protecting valve automatically cuts off oil circuit, stops to oil cylinder fuel feeding.
Specific works process of the present utility model is as follows:
When floating marine drilling platforms rises with wave, sinks, the compensation fortune that PLC10 detects according to rotary encoder 20
Dynamic angular displacement signal, the platform heave movement signal of motion reference units 14 detection, and according to the control strategy made to electricity
Magnetic reversal valve 8 and proportional throttle valve 7 send control signal, the spool position of regulation solenoid directional control valve 8 and the valve of proportional throttle valve 7
Mouth aperture.
In platform uphill process, tourist bus rises with platform, and the spool controlling solenoid directional control valve 8 moves to right, and makes P mouth and A mouth
Communicating, B mouth communicates with T mouth, makes the variable pump 2 outer shell rod chamber fuel feeding to composite hydraulic cylinder 15, provides one instead for piston rod
To controlled additional force, the outer shell rodless cavity hydraulic oil flow of composite hydraulic cylinder 15 is to accumulator 12, accumulator 12 recovery section simultaneously
The gravitional force of drill load, so that the piston rod that variable pump 2 drives composite hydraulic cylinder 15 inside contracts, will be lived by worm drive
The linear motion of stopper rod is converted to the rotary motion of little gear 21, drives winch drum 22 to transfer tourist bus, maintains the absolute position of tourist bus
Put constant.In the process, load-sensitive hydraulic cylinder 1 is automatically adjusted variable pump 2 swashplate angle according to load pressure, makes variable pump
2 output pressures match with outer shell rod chamber desirable pressure, it is ensured that system does not haves overpressure, and inner casing rodless cavity leads to simultaneously
Cross B mouth to T mouth oil sump tank.Regulation proportional throttle valve 7 valve port opening, control system output flow and outer shell rod chamber necessary flow
Match, thus control winch drum 22 rotating speed, also ensure that system does not haves excess flow simultaneously.
In platform sinking watching, tourist bus sinks with platform, and the spool controlling solenoid directional control valve 8 moves to left, and makes P mouth and B mouth
Communicating, A mouth communicates with T mouth, makes the variable pump 2 inner casing rodless cavity fuel feeding to composite hydraulic cylinder 15, is just providing one for piston rod
To controlled additional force, accumulator 12 is to the outer shell rodless cavity fuel feeding of composite hydraulic cylinder 15 simultaneously, and accumulator 12 releases energy, thus
Making variable pump 2 and accumulator 12 combine drives the piston rod of composite hydraulic cylinder 15 overhanging, by straight by piston rod of worm drive
Line motion is converted to the rotary motion of little gear 21, drives winch drum 22 to promote tourist bus, maintains tourist bus absolute position constant.?
During this, load-sensitive hydraulic cylinder 1 is automatically adjusted variable pump 2 swashplate angle according to load pressure, makes variable pump 2 output pressure
Matching with inner casing rodless cavity desirable pressure, it is ensured that system does not haves overpressure, outer shell rod chamber is by A mouth to T simultaneously
Mouth oil sump tank.Regulation proportional throttle valve 7 valve port opening, control system output flow matches with inner casing rodless cavity necessary flow,
Thus control winch drum 22 rotating speed, also ensure that system does not haves excess flow simultaneously.
This utility model hydraulic energy-saving actuation techniques is applied to marine drilling compensate winch, by variable pump, load quick
The system of the device compositions such as sense hydraulic cylinder, accumulator, composite hydraulic cylinder, bolt and nut drives winch, utilizes accumulator and change
The piston rod movement driving composite hydraulic cylinder combined by amount pump, drives the positive and negative rotation of winch drum to realize heave compensation function.?
Compensate in motor process, accumulator and composite hydraulic cylinder the gravitional force of drill load can be carried out high efficiency recovery with again
Utilizing, the power of variable pump is only used for overcoming frictional resistance and system inertia, and uses load-sensitive technology to make variable pump
Output pressure and flow and system demand pressure and flows match, therefore effectively reduce the energy consumption of system.
Claims (2)
1. semi-active type marine drilling compensate a winch, including load-sensitive hydraulic cylinder (1), variable pump (2), electromotor (3),
Fuel tank (4), overflow valve (5), check-valves (6), proportional throttle valve (7), solenoid directional control valve (8), Fill valve (9), PLC(10), overflow
Stream valve (11), accumulator (12), loss protecting valve (13), motion reference units (14), composite hydraulic cylinder (15), shaft coupling
(16), screw rod (17), nut (18), flange (19), rotary encoder (20), little gear (21), winch drum (22), its feature
Being, the piston rod of composite hydraulic cylinder (15) is mechanically connected with one end of shaft coupling (16), the other end of shaft coupling (16) and spiral shell
Bar (17) is mechanically connected, and screw rod (17) and nut (18) form rolling screw pair, and nut (18) is mechanical with one end of flange (19)
Connecting, the other end of flange (19) is mechanically connected with little gear (21), and little gear (21) twists through primary gear speed reducing rear drive
Car cylinder (22), electromotor (3) is mechanically connected with variable pump (2)；Piston rod one end of load-sensitive hydraulic cylinder (1) and variable pump
(2) swash plate is connected, the spring cavity of load-sensitive hydraulic cylinder (1) and without spring cavity respectively with the oil-out of proportional throttle valve (7)
Connect with oil-in；The oil-in of variable pump (2) is connected with fuel tank (4), the oil-out of variable pump (2) by check-valves (6) with
The oiler of proportional throttle valve (7) connects, and overflow valve (5) two ends are respectively with the oiler of proportional throttle valve (7) and fuel tank (4) even
Connect；The oil-out of proportional throttle valve (7) is connected with the P mouth of solenoid directional control valve (8), and the A mouth of solenoid directional control valve (8) and B mouth are respectively
It is connected with outer shell rod chamber and the inner casing rodless cavity of composite hydraulic cylinder (15), T mouth connected tank (4) of solenoid directional control valve (8)；Ratio
Choke valve (7) another oil-out is connected with accumulator (12) by Fill valve (9), and overflow valve (11) two ends are respectively at accumulator
(12) connecting with fuel tank (4), accumulator (12) is connected by the outer shell rodless cavity of loss protecting valve (13) with composite hydraulic cylinder (15)
Connect；Motion reference units (14) is fixed on drilling platforms, and rotary encoder (20) is arranged on winch axle, motion reference units
(14) and the signal of rotary encoder (20) is all sent to PLC(10), PLC(10) output control signal and proportional throttle valve (7),
Fill valve (9) and loss protecting valve (13) connect.
A kind of semi-active type marine drilling the most according to claim 1 compensates winch, it is characterised in that described load-sensitive
Hydraulic cylinder (1) can change according to the outer shell rod chamber of composite hydraulic cylinder (15) or inner casing rodless cavity pressure, automatically adjusts variable
The output pressure of pump (2) matches with load desirable pressure；Proportional throttle valve (6) regulates valve port opening, control according to control signal
System output stream amount processed matches with load necessary flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620752903.XU CN205772987U (en) | 2016-07-18 | 2016-07-18 | A kind of semi-active type marine drilling compensates winch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620752903.XU CN205772987U (en) | 2016-07-18 | 2016-07-18 | A kind of semi-active type marine drilling compensates winch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205772987U true CN205772987U (en) | 2016-12-07 |
Family
ID=58123424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620752903.XU Expired - Fee Related CN205772987U (en) | 2016-07-18 | 2016-07-18 | A kind of semi-active type marine drilling compensates winch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205772987U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060662A (en) * | 2017-02-27 | 2017-08-18 | 中建钢构有限公司 | Half active compensation apparatus control system |
| CN107986179A (en) * | 2017-11-28 | 2018-05-04 | 中国海洋石油集团有限公司 | The heave compensator of operation on the sea crane |
| CN110040642A (en) * | 2019-03-29 | 2019-07-23 | 宝鸡石油机械有限责任公司 | A kind of half active compensation of undulation winch |
| CN110436344A (en) * | 2019-06-05 | 2019-11-12 | 天津大学青岛海洋技术研究院 | A kind of energy-saving winch type Active Heave Compensation System and method |
-
2016
- 2016-07-18 CN CN201620752903.XU patent/CN205772987U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060662A (en) * | 2017-02-27 | 2017-08-18 | 中建钢构有限公司 | Half active compensation apparatus control system |
| CN107986179A (en) * | 2017-11-28 | 2018-05-04 | 中国海洋石油集团有限公司 | The heave compensator of operation on the sea crane |
| CN110040642A (en) * | 2019-03-29 | 2019-07-23 | 宝鸡石油机械有限责任公司 | A kind of half active compensation of undulation winch |
| CN110040642B (en) * | 2019-03-29 | 2020-11-20 | 宝鸡石油机械有限责任公司 | Semi-active heave compensation winch |
| CN110436344A (en) * | 2019-06-05 | 2019-11-12 | 天津大学青岛海洋技术研究院 | A kind of energy-saving winch type Active Heave Compensation System and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20170718 |