CN109295948A - A kind of method and system of jack-up unit automatic stowage - Google Patents
A kind of method and system of jack-up unit automatic stowage Download PDFInfo
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- CN109295948A CN109295948A CN201810973458.3A CN201810973458A CN109295948A CN 109295948 A CN109295948 A CN 109295948A CN 201810973458 A CN201810973458 A CN 201810973458A CN 109295948 A CN109295948 A CN 109295948A
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- ballast tank
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- spud leg
- stress
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
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Abstract
The invention discloses a kind of method and systems of jack-up unit automatic stowage, belong to field of ocean engineering.Jack-up unit includes hull and multiple spud legs, and multiple spud legs are arranged in the edge of hull, are equipped with even number ballast tank in hull, even number ballast tank is symmetrically distributed in the two sides of hull；Method includes: the water obtained in the stress value and each ballast tank of each spud leg in the vertical direction；According to the water variation in each ballast tank to the influence value of each spud leg stress in the vertical direction, determination makes the identical prestowage scheme of the stress value of multiple spud legs in the vertical direction, prestowage scheme includes the water injection rate or displacement of each ballast tank, the water injection rate of ballast tank is less than or equal to the capacity of ballast tank and the difference of the water in the ballast tank, and the displacement of ballast tank is less than or equal to the water in ballast tank；According to determining prestowage scheme, the water in each ballast tank is adjusted.The present invention is it is possible to prevente effectively from the problem of artificial prestowage responds not in time.
Description
Technical field
The present invention relates to field of ocean engineering, in particular to the method for a kind of jack-up unit automatic stowage and it is
System.
Background technique
Jack-up unit is a kind of offshore engineering equipment for being equipped with multiple functions, has powerful offshore oil and gas production development
And tenability, the engineerings such as coastal waters construction, offshore wind farm installation, bridge erection, water conservancy project operation, islands and reefs construction can be taken into account and answered
With.Jack-up unit includes hull, multiple spud legs and elevating mechanism corresponding with spud leg.Multiple spud legs are uniformly arranged on hull
Edge, lifting structure be arranged on corresponding spud leg, hull or spud leg are realized under the action of elevating mechanism and are freely lifted.Make
Reach seabed when industry under spud leg, stand on sea bed, hold up hull using spud leg, and make hull bottom leave sea it is certain away from
From.When in hull cargo be unevenly distributed or when sea stormy waves stream occurs, the stress of multiple spud legs can be uneven.If
Multiple spud legs are chronically at the state of discontinuity, then easily lead to the serious thing that spud leg punctures or jack-up unit topples
Therefore.
It is typically provided even number ballast tank in hull, is symmetrically distributed in the two sides of hull.By adjusting in each ballast tank
Water, the navigation performances such as adjustable ship trim, heel, drinking water, center of gravity and stability.At present mainly by manual operation, first
According to the stress condition of each spud leg, the adjustment mode of water in ballast tank is determined, increase and decrease pressure according still further to determining adjustment mode
The water in cabin is carried, the prestowage of hull is adjusted, the stress of each spud leg is made to reach balance.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems:
The stress condition of spud leg may change at any time, and the mode for manually adjusting prestowage can not be according to load change real-time perfoming
There is response not in time in adjustment.With increasing for the engineering projects such as coastal waters construction, wind-powered electricity generation installation, urgent need has automatic
The jack-up unit of prestowage function.
Summary of the invention
The embodiment of the invention provides a kind of method and systems of jack-up unit automatic stowage, are able to solve the prior art
The problem of responding not in time.The technical solution is as follows:
On the one hand, the embodiment of the invention provides a kind of method of jack-up unit automatic stowage, the jack-up units
Including hull and multiple spud legs, the edge of the hull is arranged in the multiple spud leg, is equipped with even number ballast in the hull
Cabin, the even number ballast tank are symmetrically distributed in the two sides of the hull；The described method includes:
Obtain the water in the stress value and each ballast tank of each spud leg in the vertical direction；
According to the water variation in each ballast tank to the influence value of each spud leg stress in the vertical direction,
Determining makes the identical prestowage scheme of the stress value of the multiple spud leg in the vertical direction, and the prestowage scheme includes each described
The water injection rate of the water injection rate or displacement of ballast tank, the ballast tank is less than or equal to the capacity and the ballast of the ballast tank
The difference of water in cabin, the displacement of the ballast tank are less than or equal to the water in the ballast tank；
According to determining prestowage scheme, the water in each ballast tank is adjusted.
Optionally, the jack-up unit further includes valve remote control system, ballasting system and seawater lift device, the valve
The door remote control system water discharging valve with the control terminal of the Water filling valve of each ballast tank and each ballast tank respectively
Control terminal connection, the ballasting system respectively with ocean, the seawater lift device, each ballast tank Water filling valve
And the water discharging valve connection of each ballast tank；It is described according to determining prestowage scheme, adjust in each ballast tank
Water, comprising:
The Water filling valve and displacement for controlling the ballast tank of the valve remote control system opening water injection rate greater than 0 are greater than 0
Ballast tank water discharging valve, and control water filling or draining that the ballasting system carries out ballast tank；
When the water injection rate of ballast tank of the water injection rate greater than 0 meets determining prestowage scheme, valve remote control system is controlled
System closes the Water filling valve of ballast tank of the water injection rate greater than 0；
When the displacement of ballast tank of the displacement greater than 0 meets determining prestowage scheme, valve remote control system is controlled
System closes the water discharging valve of ballast tank of the displacement greater than 0；
When the sum of water injection rate of each ballast tank is greater than the sum of the displacement of each ballast tank, and all drainings
When the water discharging valve of ballast tank of the amount greater than 0 is closed, controls the seawater lift device and filled the water to the ballasting system；
When the sum of water injection rate of each ballast tank is less than the sum of the displacement of each ballast tank, and all water fillings
When the Water filling valve of ballast tank of the amount greater than 0 is closed, controls the ballasting system and drained to ocean.
Optionally, the water variation according in each ballast tank to each spud leg in the vertical direction by
The influence value of power, determination make the identical prestowage scheme of the stress value of the multiple spud leg in the vertical direction, comprising:
According to the water variation in each ballast tank to the influence value of each spud leg stress in the vertical direction,
It obtains multiple making the identical prestowage scheme of the stress value of the multiple spud leg in the vertical direction；
A prestowage scheme is successively selected from obtained multiple prestowage schemes using following rule:
From the least amount of water extracted in ocean or the least amount of water discharged into ocean；
The sum of the water injection rate or displacement of each ballast tank minimum.
Optionally, the water variation according in each ballast tank to each spud leg in the vertical direction by
The influence value of power, determination make the identical prestowage scheme of the stress value of the multiple spud leg in the vertical direction, comprising:
When the maximum difference of the multiple spud leg stress in the vertical direction reaches setting value, according to each ballast
Water variation in cabin makes the multiple spud leg vertical the influence value of each spud leg stress in the vertical direction, determination
The identical prestowage scheme of stress value on direction.
Optionally, the method also includes:
When there is no the stress value of the multiple spud leg in the vertical direction identical prestowage scheme is made, alarm,
And according to the water variation in each ballast tank to the influence value of each spud leg stress in the vertical direction, determination makes
The maximum difference of the multiple spud leg stress in the vertical direction reaches the smallest prestowage scheme.
Optionally, the method also includes:
When the maximum difference increase of stress in the vertical direction of the multiple spud leg, alarm, new root of laying equal stress on is according to each
Water variation in a ballast tank to the influence value of each spud leg stress in the vertical direction, determine make it is the multiple
The identical prestowage scheme of the stress value of spud leg in the vertical direction.
On the other hand, the embodiment of the invention provides a kind of system of jack-up unit automatic stowage, the jack up is flat
Platform includes hull and multiple spud legs, and the multiple spud leg is arranged in the edge of the hull, is equipped with even number pressure in the hull
Cabin is carried, the even number ballast tank is symmetrically distributed in the two sides of the hull；The system comprises:
Module is obtained, for obtaining in the stress value and each ballast tank of each spud leg in the vertical direction
Water；
Determining module, for being changed to each spud leg in the vertical direction according to the water in each ballast tank
The influence value of stress, determination make the identical prestowage scheme of the stress value of the multiple spud leg in the vertical direction, the prestowage side
Case includes the water injection rate or displacement of each ballast tank, and the water injection rate of the ballast tank is less than or equal to the ballast tank
The difference of capacity and the water in the ballast tank, the displacement of the ballast tank are less than or equal to the water in the ballast tank；
Module is adjusted, for adjusting the water in each ballast tank according to determining prestowage scheme.
Optionally, the jack-up unit further includes valve remote control system, ballasting system and seawater lift device, the valve
The door remote control system water discharging valve with the control terminal of the Water filling valve of each ballast tank and each ballast tank respectively
Control terminal connection, the ballasting system respectively with ocean, the seawater lift device, each ballast tank Water filling valve
And the water discharging valve connection of each ballast tank；The adjustment module is used for,
The Water filling valve and displacement for controlling the ballast tank of the valve remote control system opening water injection rate greater than 0 are greater than 0
Ballast tank water discharging valve, and control water filling or draining that the ballasting system carries out ballast tank；
When the water injection rate of ballast tank of the water injection rate greater than 0 meets determining prestowage scheme, valve remote control system is controlled
System closes the Water filling valve of ballast tank of the water injection rate greater than 0；
When the displacement of ballast tank of the displacement greater than 0 meets determining prestowage scheme, valve remote control system is controlled
System closes the water discharging valve of ballast tank of the displacement greater than 0；
When the sum of water injection rate of each ballast tank is greater than the sum of the displacement of each ballast tank, and all drainings
When the water discharging valve of ballast tank of the amount greater than 0 is closed, controls the seawater lift device and filled the water to the ballasting system；
When the sum of water injection rate of each ballast tank is less than the sum of the displacement of each ballast tank, and all water fillings
When the Water filling valve of ballast tank of the amount greater than 0 is closed, controls the ballasting system and drained to ocean.
Optionally, the determining module is used for,
According to the water variation in each ballast tank to the influence value of each spud leg stress in the vertical direction,
It obtains multiple making the identical prestowage scheme of the stress value of the multiple spud leg in the vertical direction；
A prestowage scheme is successively selected from obtained multiple prestowage schemes using following rule:
From the least amount of water extracted in ocean or the least amount of water discharged into ocean；
The sum of the water injection rate or displacement of each ballast tank minimum.
Optionally, the determining module is used for,
When the maximum difference of the multiple spud leg stress in the vertical direction reaches setting value, according to each ballast
Water variation in cabin makes the multiple spud leg vertical the influence value of each spud leg stress in the vertical direction, determination
The identical prestowage scheme of stress value on direction.
Technical solution provided in an embodiment of the present invention has the benefit that
Changed according to the water in the stress value and each ballast tank of each spud leg in the vertical direction to each spud leg
The influence value of stress in the vertical direction, determination make the identical prestowage scheme of the stress value of multiple spud legs in the vertical direction, and
According to determining prestowage scheme, the water in each ballast tank is adjusted, realizes the automatic stowage of jack-up unit, it is ensured that Ge Gezhuan
The mean forced of leg, each spud leg unbalance stress caused by avoiding jack-up unit from being influenced by cargo unbalance loading, stormy waves stream etc. are asked
Topic prevents from causing spud leg puncture or platform to be toppled due to the long-term unbalance stress of spud leg.And each spud leg is in vertical direction
On stress value can acquire in real time, it is possible to prevente effectively from artificial prestowage response not in time the problem of.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural schematic diagram of jack-up unit provided in an embodiment of the present invention.；
Fig. 2 is a kind of flow chart of the method for jack-up unit automatic stowage provided in an embodiment of the present invention；
Fig. 3 is the position view of a ballast tank and four spud legs provided in an embodiment of the present invention on hull；
Fig. 4 is the schematic diagram that ballast tank provided in an embodiment of the present invention acts on four spud legs；
Fig. 5 is the structural schematic diagram of jack-up unit ballast portion provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of the system of jack-up unit automatic stowage provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
The embodiment of the invention provides a kind of methods of jack-up unit automatic stowage.Fig. 1 provides for the embodiment of the present invention
Jack-up unit structural schematic diagram.Referring to Fig. 1, in the present embodiment, jack-up unit includes hull 10 and multiple spud legs
20, the edge of hull 10 is arranged in multiple spud legs 20.Even number ballast tank 30 is equipped in hull 10, even number ballast tank 30 is symmetrical
It is distributed in the two sides of hull 10.
Fig. 2 is a kind of flow chart of the method for jack-up unit automatic stowage provided in an embodiment of the present invention.Referring to fig. 2,
This method comprises:
Step 101: obtaining the water in the stress value and each ballast tank of each spud leg in the vertical direction.
In practical applications, the stress value of each spud leg in the vertical direction can be obtained by pressure sensor.Work as liter
When drop system includes the pressure sensor being arranged on spud leg, each spud leg directly can be obtained in vertical direction from jacking system
On stress value；When there is no pressure sensor in jacking system, pressure sensor can also be set on spud leg and obtained each
The stress value of spud leg in the vertical direction.Specifically, stress sensing can be arranged circumferentially along each spud leg on platform
Device determines the stress value of spud leg in the vertical direction according to the measured value of each strain gauge circumferentially along spud leg.
The water of each ballast tank can be obtained by remote surveying of liquid level system.Remote surveying of liquid level system is the core of ship
(being directly related to the safety and reliability that ship rides the sea) can integrate a variety of level measuring methods and realize to ship
The monitoring and alarm of liquid level specially carry out real-time monitoring to the liquid level, temperature, pressure in each cabin etc., and are higher than alarm in monitoring
Alarm signal is issued when value.Remote surveying of liquid level system is generally by signal processing unit, operating unit, liquid level sensor, temperature sensing
The composition such as device.Remote surveying of liquid level system can be divided into two parts, and a part focuses on cargo tank, and each cargo tank information is transmitted to cabin in real time
Integrated console, a part focus on ballast tank and fresh-water tank, and the information of each water tank is transmitted to deck office valve in real time
Remote control system, remote surveying of liquid level system operatio station and Calculation of stowage on board machine.Therefore, it can directly be obtained from remote surveying of liquid level system each
The water of ballast tank.
Step 102: according to the water variation in each ballast tank to the influence value of each spud leg stress in the vertical direction,
Determination makes the identical prestowage scheme of the stress value of multiple spud legs in the vertical direction.
In the present embodiment, prestowage scheme includes the water injection rate or displacement of each ballast tank.The water injection rate of ballast tank is small
In or equal to water in the capacity and ballast tank of ballast tank difference.The displacement of ballast tank is less than or equal to the water in ballast tank
Amount.
In specific implementation, influence value of the water variation in each ballast tank to each spud leg stress in the vertical direction
It can precalculate to obtain.Such as increase or decrease 1 cubic metre in ballast tank of seawater, each spud leg stress in the vertical direction
Changing value.
Specifically, the water variation in each ballast tank can be first to the influence value of each spud leg stress in the vertical direction
According to ballast tank in the position of hull and the position of spud leg, the positional relationship between ballast tank and each spud leg is determined；
Further according to the positional relationship between ballast tank and each spud leg, stress point is carried out on each spud leg to the gravity of ballast tank
Analysis calculates, and obtains the variation of ballast tank water to each spud leg stressing influence.
Fig. 3 is the position view of a ballast tank provided in an embodiment of the present invention and four spud legs on hull.Referring to
Fig. 3, the surface vertical with the axis of spud leg of hull 10 are rectangle.Four spud legs 20a, 20b, 20c, 20d are located at close
The position on four vertex of rectangle can surround one long using the position where four spud legs 20a, 20b, 20c, 20d as vertex
It is rectangular.Ballast tank 30 is arranged in the rectangle that four spud legs 20a, 20b, 20c, 20d are surrounded, and coordinate is (x, y).Four spud legs
The rectangular length that 20a, 20b, 20c, 20d are surrounded is a, the rectangular width that four spud legs 20a, 20b, 20c, 20d are surrounded
Degree is b.
Fig. 4 is that ballast tank provided in an embodiment of the present invention acts on the schematic diagram on four spud legs.Referring to fig. 4, ballast tank
30 provide a gravity F straight down on hull 10, are successively provided straight up by four spud legs 20a, 20b, 20c, 20d
Support force N1, N2, N3, N4 on hull 10 so that hull 10 keep balance.
Carry out force analysis, establish XY coordinate system by origin of rectangular center, then support force N1, N2 for obtaining, N3,
N4 is as follows:
N1=F* [1/4+x/ (2*a)+y/ (2*b)]；
N2=F* [1/4+x/ (2*a)-y/ (2*b)]；
N3=F* [1/4-x/ (2*a)+y/ (2*b)]；
N4=F* [1/4-x/ (2*a)-y/ (2*b)].
In practical applications, it is assumed that increase the ballast water of F weight, the stressing influence value of usual each spud leg-F~2F it
Between.)
In a kind of implementation of the present embodiment, which may include:
According to the water variation in each ballast tank to the influence value of each spud leg stress in the vertical direction, obtain multiple
Make the identical prestowage scheme of the stress value of multiple spud legs in the vertical direction；
A prestowage scheme is successively selected from obtained multiple prestowage schemes using following rule:
From the least amount of water extracted in ocean or the least amount of water discharged into ocean；
The sum of the water injection rate or displacement of each ballast tank minimum.
In specific implementation, it is understood that there may be multiple to make the identical prestowage side of the stress value of multiple spud legs in the vertical direction
Case.For example, prestowage option A includes that ballast tank a fills the water 100 tons, ballast tank b fills the water 50 tons, and ballast tank c drains 100 tons, ballast tank
D drains 50 tons；Prestowage option b includes that ballast tank a fills the water 100 tons, and ballast tank b fills the water 50 tons, and ballast tank c drains 0 ton, ballast tank
D drains 100 tons；Prestowage scheme C includes that ballast tank a fills the water 50 tons, and ballast tank b fills the water 150 tons, and ballast tank c drains 150 tons, pressure
It carries cabin d and drains 50 tons.
Obtain it is all make the identical prestowage scheme of the stress value of multiple spud legs in the vertical direction after, first according to from sea
The rule selection prestowage scheme of least amount of water or the least amount of water discharged into ocean that midocean extracts.For example, prestowage option A
The water extracted from ocean is 100 tons+50 tons -100 tons -50 tons=0 ton, and the water that prestowage option b is extracted from ocean is
100 tons+50 tons of -0-100 tons=50 tons, the water that prestowage scheme C is extracted from ocean be 50 tons+150 tons -150 tons -50 tons=
0 ton, therefore select prestowage option A and prestowage scheme C.
If according to the rule selection from the least amount of water extracted in ocean or the least amount of water discharged into ocean
Prestowage scheme have it is multiple, then the sum of the water injection rate further according to each ballast tank or displacement it is the smallest rule selection prestowage scheme.
For example, the sum of water injection rate or displacement of each ballast tank of prestowage option A are 100 tons+50 tons+100 tons+50 tons=300 tons, match
The sum of water injection rate or displacement of each ballast tank of load scheme C are 50 tons+150 tons+150 tons+50 tons=400 tons, therefore are selected
Prestowage option A.
Preferential selection avoids passing through ocean water injection, it is possible to reduce seawater is in sea in each ballast tank inernal transference as far as possible
Time consumed by circulating between ocean and platform, the response time is reduced, makes the stress of each spud leg in the vertical direction flat as early as possible
, the risk that spud leg punctures and platform topples greatly is reduced.Simultaneously in the case where each ballast tank inernal transference, further select
It selects that allot water few, the response time can be further reduced, quickening makes the mean forced institute of each spud leg in the vertical direction
The time needed avoids spud leg from puncturing and topples with platform.
In another implementation of the present embodiment, which may include:
According to the water variation in each ballast tank to the influence value of each spud leg stress in the vertical direction, one is obtained
Make the identical prestowage scheme of the stress value of multiple spud legs in the vertical direction；
Using obtained prestowage scheme as determining prestowage scheme.
It obtains directlying adopt after a prestowage scheme, it is possible to reduce calculation amount reduces the requirement to hardware is realized.
Optionally, which may include:
When the maximum difference of multiple spud legs stress in the vertical direction reaches setting value, according to the water in each ballast tank
Amount variation makes the stress value phase of multiple spud legs in the vertical direction to the influence value of each spud leg stress in the vertical direction, determination
Same prestowage scheme.
In view of complicated marine environment, the almost impossible long-time of the stress of multiple spud legs is in completely average shape
State.Allow the stress of multiple spud legs to have certain deviation, prestowage can be just determined when stress deviation is larger between multiple spud legs
The water of each ballast tank of project setting avoids the water for uninterruptedly adjusting ballast tank.
In the present embodiment, multiple spud legs in the vertical direction stress maximum difference be each spud leg in the vertical direction
Stress value in maxima and minima difference.For example, the stress value of four spud legs in the vertical direction is respectively 100 tons, 500
Ton, 400 tons and 150 tons, then multiple spud legs in the vertical direction stress maximum difference be 500 tons -100 tons=400 tons.
In specific implementation, setting value can be determined with the stress difference etc. that the maximum weighted of spud leg, platform topple.
In practical applications, setting value is typically not greater than the 1/6 of hull weight.In addition, can be carried according to the soil of assessment
Power sets the stress value of any spud leg in the vertical direction is no more than bearing capacity of soil 1/2.
Optionally, this method can also include:
When there is no the stress value of multiple spud legs in the vertical direction identical prestowage scheme is made, alarm, and root
According to the water variation in each ballast tank to the influence value of each spud leg stress in the vertical direction, determining makes multiple spud legs perpendicular
The maximum difference of the upward stress of histogram reaches the smallest prestowage scheme.
In practical applications, it is possible to which there are the ballast tanks of hull side all to have bought securities with all one's capital, while the pressure of the hull other side
Cabin all empty cabins, but the situation that the stress value of multiple spud legs in the vertical direction is still different are carried, are alarmed at this time, it can be with
Staff is notified in time, to carry out respective handling；Simultaneous selection makes the maximum difference of multiple spud legs stress in the vertical direction
The risk that spud leg punctures and platform topples is down to most by the water for reaching the smallest each ballast tank of prestowage project setting as far as possible
It is low.
Step 103: according to determining prestowage scheme, adjusting the water in each ballast tank.
Fig. 5 is the structural schematic diagram of jack-up unit ballast portion provided in an embodiment of the present invention.Referring to Fig. 5, in this reality
It applies in example, jack-up unit can also include valve remote control system 40, ballasting system 50 and seawater lift device 60.Valve remote control
The control with the control terminal of the Water filling valve 31 of each ballast tank 30 and the water discharging valve 32 of each ballast tank 30 respectively of system 40
End processed connection, ballasting system 50 respectively with ocean 70, seawater lift device 60, the Water filling valve 31 of each ballast tank 30 and each
The water discharging valve 32 of a ballast tank 30 is connected to.
In the present embodiment, valve remote control system is a very important system on ship, can be in control room remote-controlled valve
The on and off of door obtains required drauht state, to easily carry out alloting for ballast water and fuel oil to meet ship
Various working condition requirements.Ballasting system is usually made of ballast pump, ballast line, ballast tank and related valve member, this implementation
Ballasting system in example refers mainly to realize ballast pump, the ballast line etc. of ballast tank water injection.Seawater lift device is main
Including seawater lift pump, for the seawater in ocean to be extracted in the hull on sea level.
Specifically, which may include:
Control valve remote control system opens the pressure of Water filling valve and displacement greater than 0 of ballast tank of the water injection rate greater than 0
The water discharging valve in cabin is carried, and controls water filling or draining that ballasting system carries out ballast tank；
When the water injection rate of ballast tank of the water injection rate greater than 0 meets determining prestowage scheme, control valve remote control system is closed
Close the Water filling valve of ballast tank of the water injection rate greater than 0；
When the displacement of ballast tank of the displacement greater than 0 meets determining prestowage scheme, control valve remote control system is closed
Close the water discharging valve of ballast tank of the displacement greater than 0；
When displacement the sum of of the sum of the water injection rate of each ballast tank greater than each ballast tank, and all displacement are greater than 0
Ballast tank water discharging valve close when, control seawater lift device to ballasting system fill the water；
When displacement the sum of of the sum of the water injection rate of each ballast tank less than each ballast tank, and all water injection rates are greater than 0
Ballast tank Water filling valve close when, control ballasting system to ocean drain.
Ballast tank water under various prestowage schemes is realized using valve remote control system, ballasting system and seawater lift device
Adjustment, whole process can carry out automatically, without human intervention.
Specifically, when the sum of water injection rate of each ballast tank is equal to the sum of the displacement of each ballast tank, the step
103 may include:
Control valve remote control system opens the pressure of Water filling valve and displacement greater than 0 of ballast tank of the water injection rate greater than 0
The water discharging valve in cabin is carried, and controls water filling or draining that ballasting system carries out ballast tank；
When the water injection rate of ballast tank of the water injection rate greater than 0 meets determining prestowage scheme, control valve remote control system is closed
Close the Water filling valve of ballast tank of the water injection rate greater than 0；
When the displacement of ballast tank of the displacement greater than 0 meets determining prestowage scheme, control valve remote control system is closed
Close the water discharging valve of ballast tank of the displacement greater than 0.
When the sum of water injection rate of each ballast tank is greater than the sum of the displacement of each ballast tank, which be can wrap
It includes:
Control valve remote control system opens the pressure of Water filling valve and displacement greater than 0 of ballast tank of the water injection rate greater than 0
The water discharging valve in cabin is carried, and controls water filling or draining that ballasting system carries out ballast tank；
When the displacement of ballast tank of the displacement greater than 0 meets determining prestowage scheme, control valve remote control system is closed
Close the water discharging valve of ballast tank of the displacement greater than 0；
When the water discharging valve of ballast tank of all displacement greater than 0 is closed, seawater lift device is controlled to ballasting system
Water filling；
When the water injection rate of ballast tank of the water injection rate greater than 0 meets determining prestowage scheme, control valve remote control system is closed
Close the Water filling valve of ballast tank of the water injection rate greater than 0.
When the sum of water injection rate of each ballast tank is less than the sum of the displacement of each ballast tank, which be can wrap
It includes:
Control valve remote control system opens the pressure of Water filling valve and displacement greater than 0 of ballast tank of the water injection rate greater than 0
The water discharging valve in cabin is carried, and controls water filling or draining that ballasting system carries out ballast tank；
When the water injection rate of ballast tank of the water injection rate greater than 0 meets determining prestowage scheme, control valve remote control system is closed
Close the Water filling valve of ballast tank of the water injection rate greater than 0；
When the Water filling valve of ballast tank of all water injection rates greater than 0 is closed, control ballasting system is drained to ocean；
When the displacement of ballast tank of the displacement greater than 0 meets determining prestowage scheme, control valve remote control system is closed
Close the water discharging valve of ballast tank of the displacement greater than 0.
Optionally, this method can also include:
When the maximum difference increase of stress in the vertical direction of multiple spud legs, alarm, new root of laying equal stress on is according to each pressure
The water variation in cabin is carried to the influence value of each spud leg stress in the vertical direction, determination makes multiple spud legs in the vertical direction
The identical prestowage scheme of stress value.
Generally during ballast tank water adjusts, the maximum difference of multiple spud legs stress in the vertical direction can be gradually
Reduce.If the maximum difference of multiple spud legs stress in the vertical direction goes up not down, illustrate unusual condition occurred, it may
It is that there are problems for determining prestowage scheme, it is also possible to which there is no problem for determining prestowage scheme, but existing variation of wave outflow etc.
Situation influences spud leg stress, cannot continue to need to redefine prestowage scheme tune using original prestowage scheme at this time
The water of whole ballast tank, in order to avoid increase the risk that spud leg punctures and platform topples；It alarms simultaneously, notifies staff in time
Carry out respective handling.
The embodiment of the present invention becomes according to the water in each spud leg stress value and each ballast tank in the vertical direction
Change the influence value to each spud leg stress in the vertical direction, determination keeps the stress value of multiple spud legs in the vertical direction identical
Prestowage scheme, and according to determining prestowage scheme, the water in each ballast tank is adjusted, realizes matching automatically for jack-up unit
It carries, it is ensured that the mean forced of each spud leg, each spud leg caused by avoiding jack-up unit from being influenced by cargo unbalance loading, stormy waves stream etc.
The problem of unbalance stress, prevents from causing spud leg puncture or platform to be toppled due to the long-term unbalance stress of spud leg.And each stake
The stress value of leg in the vertical direction can acquire in real time, it is possible to prevente effectively from the problem of artificial prestowage responds not in time.In addition,
The accurate control to prestowage may be implemented in automatic stowage, reduces manually with being loaded in determining and executing the error in prestowage scheme, has
Effect avoids the unbalanced problem of prestowage, greatly reduces the risk that spud leg punctures and platform topples.
The embodiment of the invention provides a kind of system of jack-up unit automatic stowage, be adapted to carry out it is shown in Fig. 2 from
The method of lift-type platform automatic stowage.In the present embodiment, jack-up unit includes hull and multiple spud legs, multiple spud leg settings
At the edge of hull, even number ballast tank is equipped in hull, even number ballast tank is symmetrically distributed in the two sides of hull.
Fig. 6 is a kind of structural schematic diagram of the system of jack-up unit automatic stowage provided in an embodiment of the present invention.Referring to
Fig. 6, the system include:
Module 201 is obtained, for obtaining the water in the stress value and each ballast tank of each spud leg in the vertical direction
Amount；
Determining module 202, for according to the water variation in each ballast tank to each spud leg stress in the vertical direction
Influence value, determination make the identical prestowage scheme of the stress value of multiple spud legs in the vertical direction, prestowage scheme includes each pressure
Carry the water injection rate or displacement in cabin, the water injection rate of ballast tank be less than or equal to the water in the capacity and ballast tank of ballast tank it
Difference, the displacement of ballast tank are less than or equal to the water in ballast tank；
Module 203 is adjusted, for adjusting the water in each ballast tank according to determining prestowage scheme.
Optionally, jack-up unit can also include that valve remote control system, ballasting system and seawater lift device, valve are distant
Control system is connect with the control terminal of the control terminal of the Water filling valve of each ballast tank and the water discharging valve of each ballast tank respectively,
The ballasting system water discharging valve with ocean, seawater lift device, the Water filling valve of each ballast tank and each ballast tank respectively
Connection.
Further, adjustment module 203 can be used for,
Control valve remote control system opens the pressure of Water filling valve and displacement greater than 0 of ballast tank of the water injection rate greater than 0
The water discharging valve in cabin is carried, and controls water filling or draining that ballasting system carries out ballast tank；
When the water injection rate of ballast tank of the water injection rate greater than 0 meets determining prestowage scheme, control valve remote control system is closed
Close the Water filling valve of ballast tank of the water injection rate greater than 0；
When the displacement of ballast tank of the displacement greater than 0 meets determining prestowage scheme, control valve remote control system is closed
Close the water discharging valve of ballast tank of the displacement greater than 0；
When displacement the sum of of the sum of the water injection rate of each ballast tank greater than each ballast tank, and all displacement are greater than 0
Ballast tank water discharging valve close when, control seawater lift device to ballasting system fill the water；
When displacement the sum of of the sum of the water injection rate of each ballast tank less than each ballast tank, and all water injection rates are greater than 0
Ballast tank Water filling valve close when, control ballasting system to ocean drain.
Optionally it is determined that module 202 can be used for,
According to the water variation in each ballast tank to the influence value of each spud leg stress in the vertical direction, obtain multiple
Make the identical prestowage scheme of the stress value of multiple spud legs in the vertical direction；
A prestowage scheme is successively selected from obtained multiple prestowage schemes using following rule:
From the least amount of water extracted in ocean or the least amount of water discharged into ocean；
The sum of the water injection rate or displacement of each ballast tank minimum.
Optionally it is determined that module 202 can be used for,
When the maximum difference of multiple spud legs stress in the vertical direction reaches setting value, according to the water in each ballast tank
Amount variation makes the stress value phase of multiple spud legs in the vertical direction to the influence value of each spud leg stress in the vertical direction, determination
Same prestowage scheme.
Optionally, as shown in fig. 6, the system can also include:
First processing module 204, for when there is no make the identical prestowage of the stress value of multiple spud legs in the vertical direction
It when scheme, alarms, and according to influence of the water variation to each spud leg stress in the vertical direction in each ballast tank
Value determines that the maximum difference for making multiple spud legs stress in the vertical direction reaches the smallest prestowage scheme.
Optionally, as shown in fig. 6, the system can also include:
Second processing module 205, for being reported when the maximum difference increase of stress in the vertical direction of multiple spud legs
Alert, according to the water variation in each ballast tank to the influence value of each spud leg stress in the vertical direction, determination makes new root of laying equal stress on
The identical prestowage scheme of the stress value of multiple spud legs in the vertical direction.
It should be understood that the system of jack-up unit automatic stowage provided by the above embodiment is automatic in jack-up unit
When prestowage, only the example of the division of the above functional modules, in practical application, it can according to need and by above-mentioned function
It can distribute and be completed by different functional modules, i.e., the internal structure of system is divided into different functional modules, more than completing
The all or part of function of description.In addition, the system and jack up of jack-up unit automatic stowage provided by the above embodiment
The embodiment of the method for platform automatic stowage belongs to same design, and specific implementation process is detailed in embodiment of the method, no longer superfluous here
It states.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of method of jack-up unit automatic stowage, the jack-up unit includes hull and multiple spud legs, the multiple
The edge of the hull is arranged in spud leg, is equipped with even number ballast tank in the hull, the even number ballast tank is symmetrical
In the two sides of the hull；It is characterized in that, which comprises
Obtain the water in the stress value and each ballast tank of each spud leg in the vertical direction；
According to the water variation in each ballast tank to the influence value of each spud leg stress in the vertical direction, determine
Make the identical prestowage scheme of the stress value of the multiple spud leg in the vertical direction, the prestowage scheme includes each ballast
The water injection rate of the water injection rate or displacement in cabin, the ballast tank is less than or equal in the capacity and the ballast tank of the ballast tank
Water difference, the displacement of the ballast tank is less than or equal to the water in the ballast tank；
According to determining prestowage scheme, the water in each ballast tank is adjusted.
2. the method according to claim 1, wherein the jack-up unit further includes valve remote control system, pressure
Loading system and seawater lift device, the valve remote control system respectively with the control terminal of the Water filling valve of each ballast tank with
And the control terminal connection of the water discharging valve of each ballast tank, the ballasting system are filled with ocean, the seawater lift respectively
It sets, the water discharging valve connection of the Water filling valve of each ballast tank and each ballast tank；It is described to match according to determining
Load scheme adjusts the water in each ballast tank, comprising:
Control the pressure of Water filling valve and displacement greater than 0 that the valve remote control system opens ballast tank of the water injection rate greater than 0
The water discharging valve in cabin is carried, and controls water filling or draining that the ballasting system carries out ballast tank；
When the water injection rate of ballast tank of the water injection rate greater than 0 meets determining prestowage scheme, controls the valve remote control system and close
Close the Water filling valve of ballast tank of the water injection rate greater than 0；
When the displacement of ballast tank of the displacement greater than 0 meets determining prestowage scheme, controls the valve remote control system and close
Close the water discharging valve of ballast tank of the displacement greater than 0；
When displacement the sum of of the sum of the water injection rate of each ballast tank greater than each ballast tank, and all displacement are big
When the water discharging valve of 0 ballast tank is closed, controls the seawater lift device and filled the water to the ballasting system；
When displacement the sum of of the sum of the water injection rate of each ballast tank less than each ballast tank, and all water injection rates are big
When the Water filling valve of 0 ballast tank is closed, controls the ballasting system and drained to ocean.
3. according to claim 1 or claim 2, which is characterized in that the water according in each ballast tank
Change the influence value to each spud leg stress in the vertical direction, determine make the multiple spud leg in the vertical direction by
The identical prestowage scheme of force value, comprising:
According to the water variation in each ballast tank to the influence value of each spud leg stress in the vertical direction, obtain
It is multiple to make the identical prestowage scheme of the stress value of the multiple spud leg in the vertical direction；
A prestowage scheme is successively selected from obtained multiple prestowage schemes using following rule:
From the least amount of water extracted in ocean or the least amount of water discharged into ocean；
The sum of the water injection rate or displacement of each ballast tank minimum.
4. method according to claim 1 or 2, which is characterized in that the water according in each ballast tank becomes
Change the influence value to each spud leg stress in the vertical direction, determination makes the stress of the multiple spud leg in the vertical direction
It is worth identical prestowage scheme, comprising:
When the maximum difference of the multiple spud leg stress in the vertical direction reaches setting value, according in each ballast tank
Water variation to the influence value of each spud leg stress in the vertical direction, determination makes the multiple spud leg in vertical direction
On the identical prestowage scheme of stress value.
5. method according to claim 1 or 2, which is characterized in that the method also includes:
When there is no the stress value of the multiple spud leg in the vertical direction identical prestowage scheme is made, alarm, and root
According to the water variation in each ballast tank to the influence value of each spud leg stress in the vertical direction, determine make it is described
The maximum difference of multiple spud legs stress in the vertical direction reaches the smallest prestowage scheme.
6. method according to claim 1 or 2, which is characterized in that the method also includes:
When the maximum difference increase of stress in the vertical direction of the multiple spud leg, alarm, new root of laying equal stress on is according to each institute
The water variation in ballast tank is stated to the influence value of each spud leg stress in the vertical direction, determination makes the multiple spud leg
The identical prestowage scheme of stress value in the vertical direction.
7. a kind of system of jack-up unit automatic stowage, the jack-up unit includes hull and multiple spud legs, the multiple
The edge of the hull is arranged in spud leg, is equipped with even number ballast tank in the hull, the even number ballast tank is symmetrical
In the two sides of the hull；It is characterized in that, the system comprises:
Module is obtained, for obtaining the water in the stress value and each ballast tank of each spud leg in the vertical direction
Amount；
Determining module, for according to the water variation in each ballast tank to each spud leg stress in the vertical direction
Influence value, determination make the identical prestowage scheme of the stress value of the multiple spud leg in the vertical direction, the prestowage scheme packet
The water injection rate or displacement of each ballast tank are included, the water injection rate of the ballast tank is less than or equal to the capacity of the ballast tank
And the difference of the water in the ballast tank, the displacement of the ballast tank are less than or equal to the water in the ballast tank；
Module is adjusted, for adjusting the water in each ballast tank according to determining prestowage scheme.
8. system according to claim 7, which is characterized in that the jack-up unit further includes valve remote control system, pressure
Loading system and seawater lift device, the valve remote control system respectively with the control terminal of the Water filling valve of each ballast tank with
And the control terminal connection of the water discharging valve of each ballast tank, the ballasting system are filled with ocean, the seawater lift respectively
It sets, the water discharging valve connection of the Water filling valve of each ballast tank and each ballast tank；The adjustment module is used for,
Control the pressure of Water filling valve and displacement greater than 0 that the valve remote control system opens ballast tank of the water injection rate greater than 0
The water discharging valve in cabin is carried, and controls water filling or draining that the ballasting system carries out ballast tank；
When the water injection rate of ballast tank of the water injection rate greater than 0 meets determining prestowage scheme, controls the valve remote control system and close
Close the Water filling valve of ballast tank of the water injection rate greater than 0；
When the displacement of ballast tank of the displacement greater than 0 meets determining prestowage scheme, controls the valve remote control system and close
Close the water discharging valve of ballast tank of the displacement greater than 0；
When displacement the sum of of the sum of the water injection rate of each ballast tank greater than each ballast tank, and all displacement are big
When the water discharging valve of 0 ballast tank is closed, controls the seawater lift device and filled the water to the ballasting system；
When displacement the sum of of the sum of the water injection rate of each ballast tank less than each ballast tank, and all water injection rates are big
When the Water filling valve of 0 ballast tank is closed, controls the ballasting system and drained to ocean.
9. system according to claim 7 or 8, which is characterized in that the determining module is used for,
According to the water variation in each ballast tank to the influence value of each spud leg stress in the vertical direction, obtain
It is multiple to make the identical prestowage scheme of the stress value of the multiple spud leg in the vertical direction；
A prestowage scheme is successively selected from obtained multiple prestowage schemes using following rule:
From the least amount of water extracted in ocean or the least amount of water discharged into ocean；
The sum of the water injection rate or displacement of each ballast tank minimum.
10. system according to claim 7 or 8, which is characterized in that the determining module is used for,
When the maximum difference of the multiple spud leg stress in the vertical direction reaches setting value, according in each ballast tank
Water variation to the influence value of each spud leg stress in the vertical direction, determination makes the multiple spud leg in vertical direction
On the identical prestowage scheme of stress value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810973458.3A CN109295948A (en) | 2018-08-24 | 2018-08-24 | A kind of method and system of jack-up unit automatic stowage |
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| CN201810973458.3A CN109295948A (en) | 2018-08-24 | 2018-08-24 | A kind of method and system of jack-up unit automatic stowage |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110847139A (en) * | 2019-11-18 | 2020-02-28 | 上海振华重工(集团)股份有限公司 | Pile inserting method and device for self-elevating platform |
| CN112278191A (en) * | 2020-10-23 | 2021-01-29 | 中船黄埔文冲船舶有限公司 | Floating state hoisting and rotating ballast counterweight method for offshore platform |
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Application publication date: 20190201 |