CN110436372A - A kind of Active Control Method of Large Offshore Structures slippage shipment process - Google Patents
A kind of Active Control Method of Large Offshore Structures slippage shipment process Download PDFInfo
- Publication number
- CN110436372A CN110436372A CN201910484560.1A CN201910484560A CN110436372A CN 110436372 A CN110436372 A CN 110436372A CN 201910484560 A CN201910484560 A CN 201910484560A CN 110436372 A CN110436372 A CN 110436372A
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- pressure
- valve
- way electromagnetic
- hydraulic jack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/46—Combinations of several jacks with means for interrelating lifting or lowering movements
-
- 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
- F15B21/02—Servomotor systems with programme control derived from a store or timing device; Control devices therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
A kind of Active Control Method of Large Offshore Structures slippage shipment process, this method can solve the regulation problem of sliding displacement and shipment process harbour stress simultaneously, by carrying out lift adjustment to each hydraulic jack spud leg respectively, it can be with the lifting of each jack spud leg of independent control, by carrying out lift adjustment as required to all jack spud legs, it can coordinate the stress of each jack spud leg, control structure object sliding displacement and shipment process smoothly carry out, it is also prevented from jack spud leg simultaneously and hanging phenomenon occurs, avoid certain jack spud leg stress excessive, harbour is damaged, the problem of causing works to topple.
Description
Technical field
The invention belongs to marine engineering equipment field more particularly to a kind of masters of Large Offshore Structures slippage shipment process
Flowing control method.
Background technique
The slippage shipment process of Large Offshore Structures includes sliding shifting process and shipment process, and sliding shifting process is
The continuous laying rectangular concrete sliding block on harbour is laid with continuous steel plate composition slideway, large ocean structure on sliding block
It is covered with plank below piston shoes under object spud leg, is contacted with the steel plate on sliding block, lubricating oil is coated between the two and is lubricated, by line
Property winch draw Large Offshore Structures sliding displacement；Shipment process is that continuous slideway is laid on barge, on harbour
Large structure is drawn on barge top to facilitate by slideway by harbour.With knot during sliding displacement and shipment
The movement of structure object, the different location of harbour generate different degrees of deformation, and the load born is caused to change, it is necessary to according to
The deformation of harbour different parts is respectively adjusted, and otherwise harbour stress can be made excessive, to be crushed harbour, even results in big
Type marine structure run-off the straight, will lead to when serious and topples, and cause huge safety accident and property loss.There is presently no
For the method that Large Offshore Structures sliding shifting process harbour stress is adjusted, for loading process onto ship, by barge
Ballast tank carry out discharging water adjust so as to adjust works the pressure of harbour is divided into works center of gravity go on board before, knot
Three processes are adjusted after the center of gravity of ship time and works is gone on board in structure object center of gravity, but such method belongs to and adjusts code indirectly
The method of head stress, adjustment process is cumbersome, does not have timeliness, and adjustment effect is undesirable.
Summary of the invention
In view of the problems of the existing technology, a kind of active control of Large Offshore Structures slippage shipment process of the present invention
Method is passed through according to the stress condition of harbour different parts using pressure follow method during sliding displacement and shipment
PLC programming, automatically carries out lift adjustment to the hydraulic jack of different location in slippage shipment active control hydraulic system, makes
The stress for obtaining each hydraulic jack is identical with the stress after jacking, it is ensured that piston shoes will not be hanging and bear excessive load, keep away
Exempt to be crushed harbour, prevents works from toppling, so that slippage shipment of structure process is more steady.
A kind of Active Control Method of Large Offshore Structures slippage shipment process, specific steps are as follows:
(1) it first builds scaffold and builds Large Offshore Structures on it, respectively install one on four piston shoes after the completion of construction
Hydraulic jack is successively numbered in hydraulic jack, installs pressure sensor at the top of each hydraulic jack, respectively
Pressure sensor is attached by RS-485 network, and the bottom of four hydraulic jacks and works does not contact at this time；
(2) Large Offshore Structures are jacked by four hydraulic jacks, is divided into two stages, the first stage is by PLC
It carries out automatically controlling, first judges that system is in jacking state, all overflow valves are set into an oil pressure relief, this oil pressure relief
Pressure needed for should be greater than 0 and being less than climbing structure object, then industrial personal computer PLC controls motor and drives hydraulic pump works supply pressure
Power oil, then control the left end electromagnet of four three-position four-way electromagnetic directional valves electric, the equal left position of three-position four-way electromagnetic directional valve
Work；Pressure oil is by being divided into four tunnels after filter, hydraulic pump, speed governing valve, demultplexer, per all the way by corresponding
Three-position four-way electromagnetic directional valve, non-adjustable restrictor, hydraulic control one-way valve enter the rodless cavity of corresponding hydraulic jack, so that hydraulic
The piston rod zero load of jack jacks, and when encountering the bottom of works, the pressure of hydraulic jack rodless cavity is begun to ramp up, and works as nothing
When the pressure of rod cavity is greater than the oil pressure relief of setting, overflow valve starts overflow, and hydraulic jack supports large scale structure at this time
Object, so far the first stage terminates；
(3) overflow valve is set into an oil pressure relief greater than pressure needed for climbing structure object, the synchronous top of four hydraulic jacks
It rises the regular hour, industrial personal computer controls the left end electromagnet power loss of four three-position four-way electromagnetic directional valves, and 3-position 4-way electromagnetism changes
It is in middle position to valve, hydraulic oil directly flows back to fuel tank after entering three position four-way directional control valve；
The pressure data that (4) four hydraulic jacks acquire pressure sensor is passed to data conversion module and carries out A/D conversion, warp
Data conversion module enters data memory module, then is uploaded data module for the pressure data storage of acquisition to industrial personal computer PLC
It is middle as initial pressure data；
(5) it carries out Large Offshore Structures to be shifted by the sliding that linear winches are drawn and load process onto ship, in the process because of code
The slideway of head will appear different degrees of deformation after bearing pressure, so needing to carry out rising-falling tone to four hydraulic jacks in real time
Section；Pressure sensor acquires pressure suffered by four hydraulic jacks in real time and passes in industrial personal computer PLC in shifting process, industry control
Machine PLC respectively compares the real-time pressure of four hydraulic jacks of acquisition and initial pressure；
(6) stress is reduced and the hydraulic jack greater than 0 carries out piston rod decline and adjusts, industrial personal computer PLC controls three
The right end electromagnet of four-way electromagnetic reversing valve obtain it is electric so that the work of three-position four-way electromagnetic directional valve right position, hydraulic oil pass through three
The rod chamber that four-way electromagnetic reversing valve, non-adjustable restrictor enter corresponding hydraulic jack works as reality so that hydraulic jack declines
When pressure when being equal to initial pressure, PLC controls the right end electromagnet power loss of three-position four-way electromagnetic directional valve, and 3-position 4-way electromagnetism changes
In an intermediate position to valve, hydraulic oil flows directly back into oil cylinder after entering three-position four-way electromagnetic directional valve, and hydraulic jack stops
Decline；
(7) stress is reduced and carries out jacking adjusting for 0 hydraulic jack, industrial personal computer PLC controls electromagnetism 3-position 4-way
The left end electromagnet of solenoid directional control valve obtains electric, and three-position four-way electromagnetic directional valve left position work, hydraulic oil passes through speed governing valve, multichannel point
Orchestration, three-position four-way electromagnetic directional valve, non-adjustable restrictor, hydraulic control one-way valve enter the rodless cavity of corresponding hydraulic jack, make
It obtains hydraulic jack to begin to ramp up, when real-time pressure is equal to initial pressure, PLC controls the left end of three-position four-way electromagnetic directional valve
Electromagnet power loss, three-position four-way electromagnetic directional valve is in an intermediate position, and hydraulic oil enters after three-position four-way electromagnetic directional valve directly
It is flow back into oil cylinder, hydraulic jack stops rising；
(8) hydraulic jack increased for stress carries out jacking adjusting, and industrial personal computer PLC controls three-position four-way electromagnetic directional valve
Left end electromagnet obtains electric, three-position four-way electromagnetic directional valve left position work, and hydraulic oil passes through speed governing valve, demultplexer, three four
Electric change valve, non-adjustable restrictor, hydraulic control one-way valve enter the rodless cavity of corresponding hydraulic jack, so that hydraulic jack
Start to jack, when real-time pressure is equal to initial pressure, PLC controls the left end electromagnet power loss of three-position four-way electromagnetic directional valve,
Three-position four-way electromagnetic directional valve is in an intermediate position, and hydraulic oil flows directly back into oil cylinder after entering three-position four-way electromagnetic directional valve,
Hydraulic jack stops jacking.
A kind of Active Control Method of Large Offshore Structures slippage shipment process, for traditional sliding shifting process code
Head stress adjusts problem cumbersome, that effect is undesirable without adjusting and loading onto ship process harbour stress, provides a kind of slippage shipment mistake
The Active Control Method that harbour stress and works are gone on board in journey, this method can solve sliding displacement and shipment process code simultaneously
The regulation problem of head stress can be with independent control each thousand by carrying out lift adjustment to each hydraulic jack spud leg respectively
The lifting of jin pile jacking leg, by carrying out lift adjustment as required to all jack spud legs, so that it may coordinate each very heavy
The stress of pile jacking leg, control structure object sliding displacement and shipment process smoothly carry out, while being also prevented from the appearance of jack spud leg
Hanging phenomenon avoids certain jack spud leg stress excessive, the problem of damaging to harbour, works is caused to topple.
Detailed description of the invention
Fig. 1 is a kind of Large Offshore Structures slippage shipment process active control schematic diagram of the present invention；
Fig. 2 is a kind of Large Offshore Structures slippage shipment process active control hydraulic system principle figure of the present invention；
Fig. 3 be after the completion of a kind of Large Offshore Structures are built the first stage jack forward and backward schematic diagram；
Fig. 4 is that second stage jacks forward and backward schematic diagram after the completion of a kind of Large Offshore Structures are built；
Fig. 5 is to adjust forward and backward schematic diagram in a kind of Large Offshore Structures sliding shifting process；
Fig. 6 is that a kind of Large Offshore Structures shipment process barge adjusts forward and backward schematic diagram when being higher than harbour；
Fig. 7 be a kind of Large Offshore Structures shipment process barge lower than harbour when adjust forward and backward schematic diagram.
In figure: 1- Large Offshore Structures；A1, A2, A3, A4- hydraulic jack；B1, B2, B3, B4- pressure sensor；
C1, C2, C3, C4- pressure gauge；D1, D2, D3, D4- hydraulic control one-way valve；The non-adjustable throttling of E1, E2, E3, E4, E5, E6, E7, E8-
Valve；F1, F2, F3, F4- three-position four-way electromagnetic directional valve；G1, G2, G3, G4, G5- overflow valve；2- demultplexer；3- speed regulation
Valve；4- hydraulic pump；5- motor；6- filter；7- oil cylinder；8- harbour ground；9- slideway；10- piston shoes；11- barge.
Specific embodiment
The invention patent is described further With reference to embodiment.
(1) it first builds scaffold and builds Large Offshore Structures 1 on it, then respectively install one on four piston shoes 10
A1, A2, A3, A4 is successively numbered to hydraulic jack in hydraulic jack, installs pressure sensing at the top of hydraulic jack
Device, each pressure sensor are attached by RS-485 network, and the bottom of four hydraulic jacks and works does not have at this time
Contact.
(2) after building, Large Offshore Structures 1 are jacked by four hydraulic jacks A1, A2, A3, A4,
It is divided into two stages, the first stage as shown in figure 3, carried out automatically controlling by PLC, first judges that system is in jacking state, will overflow
It flows valve G1, G2, G3, G4, G5 and sets an oil pressure reliefFor pressure needed for climbing structure object), so
Afterwards industrial personal computer PLC control motor 5 drive hydraulic pump 4 work supply pressure oil, then control four three-position four-way electromagnetic directional valve F1,
Left end electromagnet 1YA, 3YA, 5YA, 7YA of F2, F3, F4 electric, three-position four-way electromagnetic directional valve equal left position work.Pressure oil
By being divided into four tunnels after filter 6, hydraulic pump 4, speed governing valve 3, demultplexer 2, pass through 3-position 4-way electromagnetic switch respectively
Valve F1, F2, F3, F4, non-adjustable restrictor E1, E3, E5, E7, hydraulic control one-way valve D1, D2, D3, D4, into hydraulic jack A1,
The rodless cavity of A2, A3, A4 encounter the bottom of works so that the piston rod zero load of hydraulic jack A1, A2, A3, A4 jack
When, the pressure of hydraulic jack A1, A2, A3, A4 rodless cavity is begun to ramp up, when the pressure of rodless cavity is greater than the oil pressure relief of settingWhen, overflow valve G1, G2, G3, G4 start overflow, and hydraulic jack A1, A2, A3, A4 supports large structure at this time, so far
The jacking first stage terminates.
(3) second stage is jacked as shown in figure 4, overflow valve G1, G2, G3, G4, G5 are set an oil pressure relief, four hydraulic jack A1, A2, A3, A4 synchronization of jacking up regular hour T, industrial personal computer PLC control four three
Left end electromagnet 1YA, 3YA, 5YA, 7YA power loss of position four-way electromagnetic reversing valve F1, F2, F3, F4, three-position four-way electromagnetic directional valve
F1, F2, F3, F4 are in intermediate position, and hydraulic oil directly flows back to oil after entering three position four-way directional control valve F1, F2, F3, F4
Case 7, four hydraulic jacks support Large Offshore Structures at this time.
(4) so far jacking process terminates, if the pressure sensor acquisition of four hydraulic jacks A1, A2, A3, A4 at this time
Pressure is respectively, by this four pressure datasIncoming data conversion module
A/D conversion is carried out, enters data memory module through data conversion module, then uploaded data module for the pressure data of acquisitionIt stores in industrial personal computer PLC as initial pressure data.
(5) it then carries out Large Offshore Structures 1 to be shifted by the sliding that linear winches are drawn and load process onto ship, in this process
In because the slideway of harbour will appear different degrees of deformation after bearing pressure, need in real time to four hydraulic jacks
A1, A2, A3, A4 carry out lift adjustment.In shifting process pressure sensor acquire in real time four hydraulic jack A1, A2, A3,
The suffered pressure of A4It passes in industrial personal computer PLC, industrial personal computer PLC is respectively by four hydraulic jacks
Real-time pressureAnd initial pressureIt compares.
(6) the hydraulic jack progress piston rod decline adjusting for reducing and being still greater than 0 for stress, as shown in figure 5, hydraulic
The pressure that jack A2 is bornLess than initial pressure, the right end electricity of industrial personal computer PLC control three-position four-way electromagnetic directional valve F2
Magnet 4YA obtains electric, the right position F2 work, and hydraulic oil passes through speed governing valve 3, demultplexer 2, three-position four-way electromagnetic directional valve F2, no
Adjustable throttling E4 enters the rod chamber of hydraulic jack A2, so that hydraulic jack A2 is begun to decline, works as real-time pressureDeng
In initial pressureWhen, PLC controls the right end electromagnet power loss of three-position four-way electromagnetic directional valve F2, and F2 is in an intermediate position, liquid
Pressure oil flows directly back into oil cylinder 7 after entering F2, and hydraulic jack A2 stops decline.In Fig. 6, the pressure of A4 receivingLess than initial
PressureAnd it is greater than 0, make A4 decline until real-time pressure according to same adjusting methodEqual to initial pressure.In Fig. 7,
The pressure that hydraulic jack A1 is bornLess than initial pressureAnd it is greater than 0, make A1 decline straight according to same adjusting method
To real-time pressureEqual to initial pressure。
(7) stress is reduced and carries out jacking adjusting for 0 hydraulic jack, as shown in figure 5, hydraulic jack A4
The pressure of receivingLess than initial pressureIt and is 0, industrial personal computer PLC controls the left end electromagnetism of three-position four-way electromagnetic directional valve F4
Iron 7YA obtain it is electric, the left position F4 work, hydraulic oil by speed governing valve 3, demultplexer 2, three-position four-way electromagnetic directional valve F4, can not
The rodless cavity that flow regulating valve E7, hydraulic control one-way valve D4 enter hydraulic jack A4 works as reality so that hydraulic jack A4 is begun to ramp up
When pressureEqual to initial pressureWhen, PLC controls the left end electromagnet power loss of three-position four-way electromagnetic directional valve F4, during F4 is in
Between position, hydraulic oil, which enters after F4, flows directly back into oil cylinder 7, and hydraulic jack A4 stops rising.In Fig. 6, the pressure of A3 receivingLess than initial pressureAnd be 0, make A3 jacking until real-time pressure according to same control methodEqual to initial pressure.In Fig. 7, the pressure of A2 receivingLess than initial pressureAnd be 0, make A2 jacking according to same control method until real
When pressureEqual to initial pressure。
(8) hydraulic jack increased for stress carries out jacking adjusting, as shown in figure 5, hydraulic jack A1, A3 is born
Pressure、, it is all larger than initial pressure、, the left end electromagnetism of industrial personal computer PLC control three-position four-way electromagnetic directional valve F1, F3
Iron 1YA, 5YA it is electric, three-position four-way electromagnetic directional valve F1, F3 equal left position work, hydraulic oil is distributed by speed governing valve 3, multichannel
Device 2, three-position four-way electromagnetic directional valve F1, non-adjustable restrictor E1, hydraulic control one-way valve D1 enter the rodless cavity of hydraulic jack A1,
So that hydraulic jack A1 is jacked, work as real-time pressureEqual to initial pressureWhen, PLC controls three-position four-way electromagnetic directional valve F1
Left end electromagnet power loss, F1 is in an intermediate position, and hydraulic oil, which enters after F1, flows directly back into oil cylinder 7, and A1 stops jacking；Pass through
Speed governing valve 3, demultplexer 2, three-position four-way electromagnetic directional valve F3, non-adjustable restrictor E5, hydraulic control one-way valve D3 enter hydraulic
The rodless cavity of jack A3 works as real-time pressure so that hydraulic jack A3 is jackedEqual to initial pressureWhen, PLC control three
The left end electromagnet power loss of position four-way electromagnetic reversing valve F3, F3 is in an intermediate position, and hydraulic oil flows directly back into oil after entering F3
Cylinder 7, A3 stop jacking.In Fig. 6, the pressure of hydraulic jack A1, A2 receiving、It is all larger than initial pressure、, according to same
The control method of sample makes A1 jacking until real-time pressureEqual to initial pressure, make A2 jacking until real-time pressureIt is equal to
Initial pressure.Shown in Fig. 7, the pressure of A3, A4 receiving、Greater than initial pressure、, make according to same control method
A3 jacking is obtained until real-time pressureEqual to initial pressure, make A4 jacking until real-time pressureEqual to initial pressure。
Claims (1)
1. a kind of Active Control Method of Large Offshore Structures slippage shipment process, it is characterised in that: specific steps are as follows:
(1) it first builds scaffold and builds Large Offshore Structures on it, respectively install one on four piston shoes after the completion of construction
Hydraulic jack is successively numbered in hydraulic jack, installs pressure sensor at the top of each hydraulic jack, respectively
Pressure sensor is attached by RS-485 network, and the bottom of four hydraulic jacks and works does not contact at this time；
(2) Large Offshore Structures are jacked by four hydraulic jacks, is divided into two stages, the first stage is by PLC
It carries out automatically controlling, first judges that system is in jacking state, all overflow valves are set into an oil pressure relief, this oil pressure relief
Pressure needed for should be greater than 0 and being less than climbing structure object, then industrial personal computer PLC controls motor and drives hydraulic pump works supply pressure
Power oil, then control the left end electromagnet of four three-position four-way electromagnetic directional valves electric, the equal left position of three-position four-way electromagnetic directional valve
Work；Pressure oil is by being divided into four tunnels after filter, hydraulic pump, speed governing valve, demultplexer, per all the way by corresponding
Three-position four-way electromagnetic directional valve, non-adjustable restrictor, hydraulic control one-way valve enter the rodless cavity of corresponding hydraulic jack, so that hydraulic
The piston rod zero load of jack jacks, and when encountering the bottom of works, the pressure of hydraulic jack rodless cavity is begun to ramp up, and works as nothing
When the pressure of rod cavity is greater than the oil pressure relief of setting, overflow valve starts overflow, and hydraulic jack supports large scale structure at this time
Object, so far the first stage terminates；
(3) overflow valve is set into an oil pressure relief greater than pressure needed for climbing structure object, the synchronous top of four hydraulic jacks
It rises the regular hour, industrial personal computer controls the left end electromagnet power loss of four three-position four-way electromagnetic directional valves, and 3-position 4-way electromagnetism changes
It is in middle position to valve, hydraulic oil directly flows back to fuel tank after entering three position four-way directional control valve；
The pressure data that (4) four hydraulic jacks acquire pressure sensor is passed to data conversion module and carries out A/D conversion, warp
Data conversion module enters data memory module, then is uploaded data module for the pressure data storage of acquisition to industrial personal computer PLC
It is middle as initial pressure data；
(5) it carries out Large Offshore Structures to be shifted by the sliding that linear winches are drawn and load process onto ship, in the process because of code
The slideway of head will appear different degrees of deformation after bearing pressure, so needing to carry out rising-falling tone to four hydraulic jacks in real time
Section；Pressure sensor acquires pressure suffered by four hydraulic jacks in real time and passes in industrial personal computer PLC in shifting process, industry control
Machine PLC respectively compares the real-time pressure of four hydraulic jacks of acquisition and initial pressure；
(6) stress is reduced and the hydraulic jack greater than 0 carries out piston rod decline and adjusts, industrial personal computer PLC controls three
The right end electromagnet of four-way electromagnetic reversing valve obtain it is electric so that the work of three-position four-way electromagnetic directional valve right position, hydraulic oil pass through three
The rod chamber that four-way electromagnetic reversing valve, non-adjustable restrictor enter corresponding hydraulic jack works as reality so that hydraulic jack declines
When pressure when being equal to initial pressure, PLC controls the right end electromagnet power loss of three-position four-way electromagnetic directional valve, and 3-position 4-way electromagnetism changes
In an intermediate position to valve, hydraulic oil flows directly back into oil cylinder after entering three-position four-way electromagnetic directional valve, and hydraulic jack stops
Decline；
(7) stress is reduced and carries out jacking adjusting for 0 hydraulic jack, industrial personal computer PLC controls electromagnetism 3-position 4-way
The left end electromagnet of solenoid directional control valve obtains electric, and three-position four-way electromagnetic directional valve left position work, hydraulic oil passes through speed governing valve, multichannel point
Orchestration, three-position four-way electromagnetic directional valve, non-adjustable restrictor, hydraulic control one-way valve enter the rodless cavity of corresponding hydraulic jack, make
It obtains hydraulic jack to begin to ramp up, when real-time pressure is equal to initial pressure, PLC controls the left end of three-position four-way electromagnetic directional valve
Electromagnet power loss, three-position four-way electromagnetic directional valve is in an intermediate position, and hydraulic oil enters after three-position four-way electromagnetic directional valve directly
It is flow back into oil cylinder, hydraulic jack stops rising；
(8) hydraulic jack increased for stress carries out jacking adjusting, and industrial personal computer PLC controls three-position four-way electromagnetic directional valve
Left end electromagnet obtains electric, three-position four-way electromagnetic directional valve left position work, and hydraulic oil passes through speed governing valve, demultplexer, three four
Electric change valve, non-adjustable restrictor, hydraulic control one-way valve enter the rodless cavity of corresponding hydraulic jack, so that hydraulic jack
Start to jack, when real-time pressure is equal to initial pressure, PLC controls the left end electromagnet power loss of three-position four-way electromagnetic directional valve,
Three-position four-way electromagnetic directional valve is in an intermediate position, and hydraulic oil flows directly back into oil cylinder after entering three-position four-way electromagnetic directional valve,
Hydraulic jack stops jacking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910484560.1A CN110436372A (en) | 2019-06-05 | 2019-06-05 | A kind of Active Control Method of Large Offshore Structures slippage shipment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910484560.1A CN110436372A (en) | 2019-06-05 | 2019-06-05 | A kind of Active Control Method of Large Offshore Structures slippage shipment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110436372A true CN110436372A (en) | 2019-11-12 |
Family
ID=68429128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910484560.1A Pending CN110436372A (en) | 2019-06-05 | 2019-06-05 | A kind of Active Control Method of Large Offshore Structures slippage shipment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110436372A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111099389A (en) * | 2019-12-13 | 2020-05-05 | 南通泰胜蓝岛海洋工程有限公司 | Ship loading device and method for offshore booster station |
| CN112631342A (en) * | 2020-12-22 | 2021-04-09 | 博迈科海洋工程股份有限公司 | Large ocean module sliding shipment cooperative operation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201837489U (en) * | 2010-10-29 | 2011-05-18 | 中国海洋石油总公司 | Dock stress measuring device for shipment of large structure by self-propelled modular transporter |
| CN102582803A (en) * | 2012-03-14 | 2012-07-18 | 中国海洋石油总公司 | Hydraulic lifting roller shipping process for ultra-large marine structure |
| CN103708376A (en) * | 2013-12-17 | 2014-04-09 | 天津大学 | Control structure for large-displacement synchronous jacking of large-scale deck pieces |
| CN108194435A (en) * | 2018-03-29 | 2018-06-22 | 大连华锐重工集团股份有限公司 | A kind of bolt-type ocean lifting platform synchronization hydraulic system and its control method |
-
2019
- 2019-06-05 CN CN201910484560.1A patent/CN110436372A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201837489U (en) * | 2010-10-29 | 2011-05-18 | 中国海洋石油总公司 | Dock stress measuring device for shipment of large structure by self-propelled modular transporter |
| CN102582803A (en) * | 2012-03-14 | 2012-07-18 | 中国海洋石油总公司 | Hydraulic lifting roller shipping process for ultra-large marine structure |
| CN103708376A (en) * | 2013-12-17 | 2014-04-09 | 天津大学 | Control structure for large-displacement synchronous jacking of large-scale deck pieces |
| CN108194435A (en) * | 2018-03-29 | 2018-06-22 | 大连华锐重工集团股份有限公司 | A kind of bolt-type ocean lifting platform synchronization hydraulic system and its control method |
Non-Patent Citations (2)
| Title |
|---|
| 刘桂涛: "基于RS-485网络的海上组块滑移装船检测系统研究", 《控制与检测》 * |
| 吴航，等: "一种海洋平台滑移装船滑道受力检测装置", 《焊接技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111099389A (en) * | 2019-12-13 | 2020-05-05 | 南通泰胜蓝岛海洋工程有限公司 | Ship loading device and method for offshore booster station |
| CN112631342A (en) * | 2020-12-22 | 2021-04-09 | 博迈科海洋工程股份有限公司 | Large ocean module sliding shipment cooperative operation method |
| CN112631342B (en) * | 2020-12-22 | 2022-07-12 | 博迈科海洋工程股份有限公司 | Large ocean module sliding shipment cooperative operation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103922235B (en) | A kind of deep sea winch compensation of undulation fluid power system with adaptive load ability | |
| CN106241633B (en) | A kind of towing winch hydraulic control system peculiar to vessel and transmission device and control method | |
| CN110436372A (en) | A kind of Active Control Method of Large Offshore Structures slippage shipment process | |
| CN104314905B (en) | Prestressing force intelligent tensioning hydraulic system, prestress tensioning equipment and its control method | |
| CN102425426B (en) | Energy-saving shield hydraulic feeding system for energy accumulator mounted on side of feeding oil inlet | |
| CN101417771A (en) | Crane lifting speed control method and device | |
| CN201581382U (en) | Electro-hydraulic proportional control piston type two-lifting-point hydraulic hoist | |
| CN201554009U (en) | Piston-type double hanging point hydraulic headstock gear | |
| CN203081884U (en) | Four-cylinder synchronous electro-hydraulic proportional control system for main lift cylinder of vertical ship lift | |
| CN102400454A (en) | Automatic control method and automatic control device for lifting of ocean platform | |
| CN103130099B (en) | Crawler crane mast lifting hydraulic control system and method | |
| CN105257614B (en) | A kind of hydraulic jack high-precise synchronization control complexes of super large jumbo | |
| CN102295248B (en) | Hydraulic elevating leveling device and control and use method for the same | |
| CN201874918U (en) | Composite hydraulic cylinder and electro-hydraulic proportional lifting system thereof | |
| CN205154795U (en) | Controllable TBM of high -efficient high accuracy flow supports hydraulic system | |
| CN102030288A (en) | Elevator mechanism of automatic stacking device and control method | |
| CN201942484U (en) | Lifting mechanism of automatic piling device | |
| CN104555741B (en) | Main winch control system of rotary drilling rig and rotary drilling rig | |
| CN204127002U (en) | A kind of boat segmental always organizes the hydraulic control system of positioning device | |
| CN111237294B (en) | Hydraulic system of walking pile driver | |
| CN205804987U (en) | A kind of heavy construction sub-truss lifting detection device | |
| CN203614479U (en) | Tundish lifting hydraulic device with high synchronization accuracy | |
| CN102155007B (en) | Hydraulic system for trolley driving mechanism of inclined sliding door hoist | |
| CN115467869A (en) | Large-scale derrick deviation rectifying multipoint synchronous electro-hydraulic control system based on variable frequency speed regulation-high speed switch | |
| CN205136179U (en) | Bivariate hydraulic pressure system for in rig |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191112 |
|
| WD01 | Invention patent application deemed withdrawn after publication |