CN205653772U - Small -size platform is from lift -type spud leg - Google Patents
Small -size platform is from lift -type spud leg Download PDFInfo
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- CN205653772U CN205653772U CN201620260191.XU CN201620260191U CN205653772U CN 205653772 U CN205653772 U CN 205653772U CN 201620260191 U CN201620260191 U CN 201620260191U CN 205653772 U CN205653772 U CN 205653772U
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Abstract
Ocean jack -up platform (indicating offshore oil well drilling and production platform) generally uses " from the lift -type spud leg " to be fixed in seabed specific position as the support with this platform at present. A gear rack device is mainly adopted in the lift of spud leg. This kind of drive mechanism not only size is huge, and is with high costs moreover. Not too practical to most of small -size platform ships. Provided is a purpose is: adopt cylindric spud leg inside hydrostatic pressure or buoyancy, in addition the pulling force of hoist engine makes its lift. This kind of technique is simple, reliable and the cost is very low for small -size platform device is especially adapted. This patent a small -size platform is from lift -type spud leg, divide by the four bibliographic categories to constitute: the one of which is the steel cylindric spud leg of cover in the boats and ships column pipe, and this is the structure support thing of whole platform ship, next is the qian shui beng - clack box system that sets up in the cylindric spud leg, it be by the immersible pump and with the clack box system composition, the third is hoist engine operating system and the transmission system who is connected with the cylindric spud leg, the fourth is the hydraulic pressure locking system of spud leg, can lock barrel and sleeve in certain position. The lift of above -mentioned four most actions, realization cylindric spud leg is coordinated through automatic control system. If there is thick silt in the seabed, this patent is in the shoe bottom and install rotary cutting blade and " pulse water under high pressure " shower nozzle all around, and shoe bottom and rotary cutting blade all around can cut up the silt of adhesion, and the pulse water under high pressure of spouting simultaneously can be washed open with the silt of shoe adsorbing the spud leg, then withdraw the spud leg.
Description
1. technical field:
This patent, from technical standpoint, relates to the integrated application to boats and ships and ocean engineering technology, belongs to boats and ships and ocean work
Journey equipment class technical field.
2. background technology
Marine self-elevating platform (referring to offshore petroleum drilling and production platform), generally uses " jack up spud leg " conduct at present
This platform is fixed on seabed ad-hoc location by supporter.The lifting of spud leg mainly uses gear one rack gear arrangement.From principle, this
It it is a kind of common mechanical transmissioning technology.But it practice, due to spud leg length in the seawater the longest (reach tens meters the most hundreds of
Rice), and the weight of platform is very big (tons up to ten thousand having), and require accurate positioning, firm stable, and also ocean to be amenable to is huge
The attack of high sea, this drive mechanism not only build is huge, and power is powerful, processing precise, and with high costs.China is permitted
The lifting module of many jack-up units, mostly from external import.
Some offshore engineering, such as, the pile foundation engineering of shallow sea wind power machine, the installing engineering of wind turbine, coastal engineering building
The development of the engineerings such as the underwater pile driving of thing, causes small-sized flat-bottomed boat to arise at the historic moment.Such as shallow sea probing, geological sampling, Yi Jihai
The resistance to compression stress test of upper pile foundation and tension pile pulling test etc., the marine site depth of water at offshore platform ship place is the most little (the most e.g., less than
100m), flat-bottomed boat the biggest (e.g., less than 5000 tons) from liter weight, now, the elevator of flat-bottomed boat jack up spud leg
Structure i.e. there is no need to use gear one rackwork of costliness again.
3. the content of this patent:
3.1 general introduction
The purpose of this patent is: the lifting realizing spud leg no longer uses the skill of mechanical gear one tooth bar or worm and gear
Art, but use the hydrostatic pressure within tubular spud leg or buoyancy, add the principle that the pulling force of hoist engine makes it lift, though this
Also it is so conventional mechanical technique, but simpler, more reliable and cost is the lowest, it is especially suitable for for small ocean stage apparatus.
The composition of 3.2 1 kinds of small ocean platform jack up spud leg patents
A kind of small ocean platform jack up spud leg described in this patent, is to be made up of 4 parts: the first is enclosed within boats and ships post
Steel tubular spud leg in shape pipe；Its two immersible pumps being provided in tubular spud leg-clack box system, it be by immersible pump and
Form with clack box system；It three is the hoist engine jacking system and drive system being connected with tubular spud leg；It four is spud leg
Hydraulic lock system, can be locked at certain position by cylinder and sleeve.
So-called tubular spud leg, is a large-scale watertight steel pipe, is subject to the supporting member of ship weight.It is arranged on platform
Within spud leg sleeve.Its top, by fixed pulley, running block and wirerope and the two groups of hydraulic winch phases being arranged on platform
Connect, spud leg can be made freely to slide up and down in sleeve；Both can sink to seabed, it is also possible to be received in platform always,
Centre position can also be rested on；
So-called immersible pump-clack box system, the bottom being located in spud leg, by the valve regulated in clack box, when needs are by stake
When lower limb drops to seabed, it is pumped into sea water, produces gravity, add the weight of upper shell and shoe and ballast, add one group of liquid
The pulling force of pressure hoist engine, can drop to seabed by whole spud leg；Equally, corresponding remote control valve member is adjusted, it is also possible to by cylinder
Sea water discharge outside cylinder, utilize buoyancy that cylinder produces and another pull strength organizing hoist engine to make spud leg increase, taken in
In platform.Set remote-controlled valve in clack box, the keying of valve member according to the requirement of automatic control system, can be controlled.
So-called hoist system, is by the support being fixed on Platform Deck, hydraulic winch, assembly pulley and to connect wirerope
Composition.Elevator support, in the bottom of support, links together with Platform Deck.Hydraulic winch and carrying cable are divided into two groups,
The upper end of one group of hoist engine carrying cable is connected with spud leg upper end through fixed pulley, produces spud leg pulling force upwards；Another group
The upper end of hoist engine carrying cable direct connection with spud leg upper end produces pulling force downward for spud leg,.
So-called pile leg locking device, is the some groups of hydraulic jack controls arranged in spud leg sleeve (sleeve and platform are fixed)
The telescopic pin of system.When hydraulic oil enters in oil cylinder, piston pin i.e. can be plugged in the hole slot that spud leg cylinder is preset, by spud leg cylinder
Body is locked with sleeve, and spud leg will be stabilized in the certain position of platform.
The lifting process of 3.3 1 kinds of small-sized flat-bottomed boat jack up spud legs
The lifting of this small-sized flat-bottomed boat jack up spud leg utilizes water pressure+hoist engine pulling force to realize.Its lifting is former
Reason is following (seeing accompanying drawing 1) with process:
3.3.1 the decline of spud leg
When lifting spud leg and needing to decline, open remote control sea cock and valve 7., sea water is put into lifting lower limb inside 5., discharges liquid
8. pressure locking latch, when the sea water arrived ship water line lifted in spud leg, unclamps lift winch brake gear 3.,
And open lift winch 10., lifting spud leg will sleeve (including ballast) gravity and hoist engine 10. downwards pulling force combine work
Under with, beginning to decline, be then turned on immersible pump ballast pump 6., 7. sea water will continue to be inhaled into by remote control sea cock and valve, can make lifting
Spud leg goes straight down to seabed.Now can close remote-controlled valve 7. (because the opening at shoe is likely covered by seabed), be then turned on
9. sea water, is continued to be drawn into inside lifting spud leg, until filling lifting spud leg by remote-controlled valve；Turn off remote control sea cock and valve 9., lock
Tight hydraulic stopper pin 8., turn off hoist engine 3. with switch 10. lock brake gear, i.e. complete spud leg and drop to the journey in seabed
Sequence.If needing to lift boats and ships, 8. releasable hydraulic locking latch, and unclamps the brake gear of lift winch, opens
Hoist engine 10., the position more than water line of whole boats and ships can being sling to needed.
3.3.2 the rising of spud leg
When spud leg needs to rise and resets, can first discharge hydraulic stopper pin 8., release lift winch stopping 3., 10.
Car, slowly puts down hull, until to normal floading condition.It is then turned on subsea remote control valve 9., allows the sea water in spud leg automatically flow out.
When the water surface in spud leg flushes with off-lying sea, diving ballast pump should be opened 6., the sea water in spud leg is all emptied, rely on water
Buoyancy to spud leg, and open lift winch 3., spud leg is sling, then locks hydraulic stopper pin 8., can recover to normally
Initial condition.
3.3.3 the measure of saving oneself when shoe " is held " or is absorbed among mud.
If there is thicker mud in seabed, make flat-bottomed boat be embedded certain degree of depth, but be unlikely to " sinking completely ", still
Can be saved oneself by the ability of self, this stage is the limit of the ability to work of this flat-bottomed boat.Flat-bottomed boat displacement big
Little, spud leg diameter, length, the selection etc. of shoe size, be intended to consider this factor.
" saving oneself " mode contemplated by this patent is bottom shoe and surrounding device rotary cutting blade and " high voltage pulse
Water " shower nozzle, bottom shoe and the rotary cutting blade of surrounding, the mud chopping that can adhere to, ejection high voltage pulse water simultaneously,
Wash open adsorbing the spud leg mud with shoe, then spud leg is regained.
4. accompanying drawing explanation:
Fig. 1 is: a kind of small ocean platform jack up spud leg
The legend of Fig. 1 is:
1. lifting spud leg hangs a liter pulley
2. lifting pole support
3. lift winch (producing the power pulled up by spud leg)
4. lifting spud leg sleeve
5. spud leg is lifted
6. dive under water ballast pump
7. subsea remote control valve
8. hydraulic locking latch
9. subsea remote control valve
10. lift winch
(producing power drop-down for spud leg, support, in the vertical direction with drawing, figure does not represents)
Fig. 2 is: the design of a kind of small-sized jack-up unit ship
The tension of the pile foundation engineerings such as this geological prospecting in shallow sea peculiar to vessel, coastal structure, wind turbine and compression test, wind-powered electricity generation
Machine installation etc..It is suitable for below depth of water 50m.Use 4 jack up spud legs (the present invention program).
The legend of Fig. 2 is:
1. flat-bottomed boat hull
2. 360 ° of all-direction propellers of afterbody
3. spud leg after
4. the long rails of assay device
5. resistance to compression (or resistance to plucking) static load test device
6. drilling machine
The most front spud leg
Side Thrusters
Fig. 3 is: the pressure-resistant static load assay device of a kind of small-sized jack-up unit ship
The A-A-A1-A1 generalized section of Fig. 2 (this figure be), when carrying out pressure-resistant static load test, needs to raise hull
More than the water surface, resorb substantial amounts of ballast water, test pile could be applied sufficiently large pressure.It is ratio by the solution of the present invention
Less expensive is suitable for.
The legend of Fig. 3 is:
1. flat-bottomed boat hull
3. spud leg after
4. assay device long rails
8. assay device liftable column
9. assay device girder
10. sensor
Jack
Pressure gauge
Test pile (maximum gauge 7m)
Shoe (edge and bottom are provided with rotating blade and high-pressure water nozzle)
Fig. 4 is: the resistance to plucking static load test device of a kind of small-sized jack-up unit ship
The A-A-A1-A1 generalized section of Fig. 2 (this figure be) resistance to plucking static load test to apply with anti-for test pile
The power that pressure test is contrary, it is not necessary to hull is increased to more than the water surface is the simplest by the scheme of this patent.
The legend of Fig. 4 is:
Lacing wire
(other same Fig. 3)
5. detailed description of the invention
Below according to Principles of Ship Designing, provide the design example of a small-sized jack-up unit ship using 4 spud legs,
Specific implementation of the patent mode is described:
5.1 specification
5.1.1 ship type, navigating area and purposes
Ship type；This ship is the needs adapting to engineering construction, and afterbody is double tails, has one block of bigger opening water between double tails
Territory.Full ship sets 4 cylindrical jack up spud legs, and stem is circular.
Navigating area: this ship is as working ship, it is adaptable to the marine site below coastal area of china depth of water 50m；As navigating ship, can navigate
Row (including operation) is in coastal area of china 3 class sea area.
Purposes: this ship is mainly used in the hydraulic structures such as the pylon pile foundation to coastal engineering and offshore wind generating and carries out
Resistance to compression, pullout tests, carry out marine geological drilling.After configuration loop wheel machine, it is also possible to carry out the peace of offshore wind energy plant
Dress and maintenance.
5.1.2 the major parameter of boats and ships:
5.1.3 spud leg (jack up)
This ship designs 4 jack up spud legs altogether, and its parameter is as follows:
5.1.4 power and alignment system
All electric propulsion.If main electrical power plant, emergency power station, tail 360 ° of all-direction propellers, bow thrusters.Alignment system is
DP-2。
5.2 compression test
5.2.1 compression test program:
By aforementioned " decline of spud leg " program, 4 spud legs are all filled sea water, makes spud leg press to seabed；First drain boats and ships
Interior ballast water (to alleviate ship weight)；Open the hoist engine risen by boats and ships, boats and ships can be risen and depart from the water surface, locking
After boats and ships, then ballast water is injected, make spud leg that subsea pressure to be increased.
After adjusting vessel position (girder making compression test is the level of state), pressure-resistant static load can be carried out
Test, design pressure is set as 3000t.
5.2.2 the major parameter of compression test:
Boats and ships theoretical maximum displacement (assuming that upper deck is submerged, without spud leg)
Δmax=5136t
Boats and ships theoretical maximum weight (containing filling sea water in spud leg)
Wmax=8475t
Theoretical maximum pressure (assuming that depth of water 50m, deduct spud leg buoyancy)
Wpmax=6388t；
5.3 pullout tests:
5.3.1 pullout tests program
By aforementioned " decline of spud leg " program, 4 spud legs are all filled sea water, makes spud leg press to seabed.During pullout tests,
Flat-bottomed boat need not be carried away the water surface (interference except for reducing wave), can be at flat-bottomed boat under designed displacement state
Carry out.
5.3.2 the major parameter of pullout tests:
Theoretical minimum pull out force (assumings that depth of water 50m), should be the maximum pull out force of test of setting plus deducting spud leg buoyancy after
Spud leg weight:
The test maximum pull out force set as:
Pup0=3000t
Theoretical minimum pull out force is
Pupmin=3000+1252=4252t.
Claims (5)
1. a small ocean platform jack up spud leg.It is characterized in that, described small ocean platform jack up spud leg, be by
4 parts are constituted, the steel tubular spud leg that the first is enclosed within boats and ships column tube；Its two diving being provided in tubular spud leg
Pump-clack box system, it forms by immersible pump with clack box system；Its three be connected with tubular spud leg hoist engine lifting system
System；It four is the hydraulic lock system of spud leg, cylinder and sleeve can be locked at certain position.
A kind of small ocean platform jack up spud leg the most according to claim 1, it is characterised in that described tubular stake
Lower limb, is watertight type, within being arranged on the spud leg sleeve of platform, on it, by fixed pulley, running block and wirerope be arranged on
Two groups of hydraulic winches on platform are connected, and freely can slide up and down in sleeve；Seabed can be sunk to always, it is possible to
To be received in platform；
Small ocean platform jack up spud leg the most according to claim 1, it is characterised in that described immersible pump-clack box
System, is generally located in the bottom of spud leg, by the valve regulated in clack box, when spud leg is dropped to seabed by needs, is pumped into
Sea water, produces gravity, adds the weight of upper shell and shoe and ballast, add the pulling force of one group of hoist engine, can be by whole
Spud leg drops to seabed；Equally, corresponding remote control valve member is adjusted, it is also possible to discharged outside cylinder by the sea water in cylinder, utilize cylinder
Spud leg is risen by the pull strength of the buoyancy produced and another group hoist engine, in income platform.Remote-controlled valve, can be according to automatically controlling
The requirement of system, controls the keying of valve member.
Small ocean platform jack up spud leg the most according to claim 1, it is characterised in that described hoist system is
By the support being fixed on Platform Deck, two groups of hydraulic winches, assembly pulleys and connect wirerope and form.Elevator support is located at support
Bottom, link together with Platform Deck.Carrying cable is also classified into two groups.The upper end of one group of hoist engine carrying cable is through fixed
Pulley is connected with spud leg upper end；The upper end of another group hoist engine carrying cable is directly connected with spud leg upper end.
Small ocean platform jack up spud leg the most according to claim 1, it is characterised in that: described pile leg locking device
It is the telescopic pin controlled at the upper some groups of hydraulic jacks arranged of spud leg sleeve (sleeve and platform are fixed), when hydraulic oil enters oil
Time in cylinder, piston pin i.e. can be plugged into, in the hole slot that spud leg cylinder is preset, being locked with sleeve by spud leg cylinder, and spud leg will be stablized
Certain position at platform.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620260191.XU CN205653772U (en) | 2016-03-31 | 2016-03-31 | Small -size platform is from lift -type spud leg |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620260191.XU CN205653772U (en) | 2016-03-31 | 2016-03-31 | Small -size platform is from lift -type spud leg |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392587A (en) * | 2016-12-01 | 2017-02-15 | 浙江海洋大学 | High-altitude installing device for platform pile legs |
| CN107288114A (en) * | 2016-03-31 | 2017-10-24 | 周俊麟 | A kind of small ocean platform jack up spud leg |
| CN107700451A (en) * | 2017-08-22 | 2018-02-16 | 武汉船用机械有限责任公司 | A kind of cylinder spud leg |
| CN109056682A (en) * | 2018-06-28 | 2018-12-21 | 武汉船用机械有限责任公司 | A kind of shoe |
| CN109292047A (en) * | 2018-09-29 | 2019-02-01 | 中国铁建港航局集团有限公司 | Tubular pole cutting operation platform and its application method |
| CN109878636A (en) * | 2019-04-11 | 2019-06-14 | 贵州黔航交通工程有限公司 | Cast in place pile operating platform |
| CN113863265A (en) * | 2021-10-19 | 2021-12-31 | 中国船舶工业集团公司第七0八研究所 | Pile leg lifting device for self-elevating ocean platform |
| CN114086533A (en) * | 2020-08-24 | 2022-02-25 | 中石化石油工程技术服务有限公司 | Buoyancy-free double-wall self-elevating platform pile leg |
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2016
- 2016-03-31 CN CN201620260191.XU patent/CN205653772U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288114A (en) * | 2016-03-31 | 2017-10-24 | 周俊麟 | A kind of small ocean platform jack up spud leg |
| CN106392587A (en) * | 2016-12-01 | 2017-02-15 | 浙江海洋大学 | High-altitude installing device for platform pile legs |
| CN107700451A (en) * | 2017-08-22 | 2018-02-16 | 武汉船用机械有限责任公司 | A kind of cylinder spud leg |
| CN107700451B (en) * | 2017-08-22 | 2020-04-28 | 武汉船用机械有限责任公司 | Cylindrical pile leg |
| CN109056682A (en) * | 2018-06-28 | 2018-12-21 | 武汉船用机械有限责任公司 | A kind of shoe |
| CN109292047A (en) * | 2018-09-29 | 2019-02-01 | 中国铁建港航局集团有限公司 | Tubular pole cutting operation platform and its application method |
| CN109292047B (en) * | 2018-09-29 | 2023-11-14 | 中国铁建港航局集团有限公司 | Tubular pile cutting operation platform and use method thereof |
| CN109878636A (en) * | 2019-04-11 | 2019-06-14 | 贵州黔航交通工程有限公司 | Cast in place pile operating platform |
| CN109878636B (en) * | 2019-04-11 | 2024-01-19 | 贵州黔航交通工程有限公司 | Water drilling operation platform |
| CN114086533A (en) * | 2020-08-24 | 2022-02-25 | 中石化石油工程技术服务有限公司 | Buoyancy-free double-wall self-elevating platform pile leg |
| CN113863265A (en) * | 2021-10-19 | 2021-12-31 | 中国船舶工业集团公司第七0八研究所 | Pile leg lifting device for self-elevating ocean platform |
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