CN100575613C - The active ice resistant device of auto spiral lifting - Google Patents
The active ice resistant device of auto spiral lifting Download PDFInfo
- Publication number
- CN100575613C CN100575613C CN200810053497A CN200810053497A CN100575613C CN 100575613 C CN100575613 C CN 100575613C CN 200810053497 A CN200810053497 A CN 200810053497A CN 200810053497 A CN200810053497 A CN 200810053497A CN 100575613 C CN100575613 C CN 100575613C
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- ice
- back taper
- cartridge type
- positive back
- taper assembly
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Abstract
The invention discloses a kind of active ice resistant device of auto spiral lifting; comprise and be sleeved on protected object spud leg outside and the fixed bearing affixed with it; with the affixed hydraulic pressure of fixed bearing from jacking system; with hydraulic pressure from the affixed cartridge type freely movable bearing that is sleeved on protected object spud leg outside of the plunger of jacking system; be sleeved on cartridge type freely movable bearing outside and connected anti-ice piton body; described anti-ice piton body is positive back taper assembly; the inner surface of described positive back taper assembly is connected with the outer surface thread of the cartridge type part of cartridge type freely movable bearing, on the lower surface of positive back taper assembly screw propeller is installed.The present invention not only can change by the self adaptation tidal range; can also realize that active is opened ice, the full-automatic accumulation and the function of climbing phenomenon to the threat of platform of turning round, reduce ice raft; be adapted to the more serious marine site of ice condition especially, can protect marine site, ice formation ocean engineering structure effectively.
Description
Technical field
The present invention relates to the protection of marine site, ice formation ocean engineering structure spud leg, relate in particular to a kind of active ice resistant device of auto spiral lifting.
Background technology
At present, the ice resistant device of ice formation ocean engineering structure has positive cone, back taper or positive back taper to make up mostly for being installed on the bullet on the spud leg.The positive back taper assembly of some anti-ice is fixed on the spud leg, and some can rely on jacking system along the pile lifting.Effect by the cone surface makes ice raft change bending failure into by squeeze and destroy, reach open ice, the effect of trash ice.But for the more serious marine site of ice condition, because the very fast existing icebreaking device of the thicker ice speed of ice sheet all can not be brought into play the desirable effect that opens ice; And the climbing of trash ice and packing phenomenon also can threaten to pile; The marine site that changes greatly for tidal range needs the artificial contact surface of regulating anti-positive back taper assembly of ice and ice raft in addition.
Summary of the invention
Purpose of the present invention is just in order to overcome above-mentioned deficiency of the prior art; provide a kind of tidal range that can adapt to automatically to change the ice resistant device that is adapted to the relatively more serious marine site of ice condition that can reduce trash ice climbing and packing phenomenon again; this ice resistant device not only can change by the self adaptation tidal range; can also realize that active is opened ice, the full-automatic accumulation and the function of climbing phenomenon to the threat of platform of turning round, reduce ice raft; be adapted to the more serious marine site of ice condition especially, can protect marine site, ice formation ocean engineering structure effectively.
The present invention is achieved by following technical proposals: a kind of active ice resistant device of auto spiral lifting; comprise and be sleeved on protected object spud leg outside and the fixed bearing affixed with it; with the affixed hydraulic pressure of fixed bearing from jacking system; with hydraulic pressure from the affixed cartridge type freely movable bearing that is sleeved on protected object spud leg outside of the plunger of jacking system; be sleeved on cartridge type freely movable bearing outside and connected anti-ice piton body; described anti-ice piton body is positive back taper assembly; the inner surface of described positive back taper assembly is connected with the outer surface thread of the cartridge type part of cartridge type freely movable bearing, on the lower surface of positive back taper assembly screw propeller is installed.
Described screw propeller is connected with the tidal level sensor-based system two that is installed in positive back taper assembly inside.
On the cartridge type part inner surface of described cartridge type freely movable bearing, install the leading block that the external surface with the protected object spud leg joins.
The inside of described positive back taper assembly is equipped with the surface heat exchange system.
Described surface heat exchange system is made up of the heat pipe that distributes as net shape.
Described hydraulic pressure comprises from jacking system: the plunger that links to each other with the base portion of freely movable bearing, the plunger case that links to each other with plunger, the oil feeding reservoirs that links to each other with plunger case, be arranged in parallel one way valve and liquid level control switch valve between oil feeding reservoirs and plunger case, the liquid level control switch valve is connected with tidal level sensor-based system one.
The invention has the beneficial effects as follows: 1, the hydraulic pressure that adopts among the present invention is from jacking system, need not manual operation, automatically change with tidal range and adjust the positive back taper assembly of anti-ice position, and when ice raft acts on the positive back taper assembly of anti-ice, can keep the stability of the positive back taper assembly of anti-ice again.Special adaptation tidal range excursion is big, the marine site that pace of change is fast.2, the spiral that adopts among the present invention reaches the desirable effect that initiatively opens ice by anti-auto spiral formula elevating movement of icing positive back taper assembly, and has reduced the climbing and the packing phenomenon of trash ice from jacking system, is particularly suitable for the more serious marine site of ice condition.3, the surface heat exchange system that adopts among the present invention cooperates rotatablely moving of the positive back taper assembly of anti-ice to reduce the generation of trash ice accumulation with the climbing phenomenon.4, each parts are conventional products among the present invention, and convenient production reduces cost.
Description of drawings
Fig. 1 is a front view of the present invention;
Fig. 2 is a B-B view among Fig. 1;
Fig. 4 is a C-C view among Fig. 2;
Fig. 3 is a partial enlarged drawing among Fig. 4;
Fig. 5 is the plunger case hydraulic system principle figure;
Fig. 6 is the positive back taper assembly spiral of the anti-ice schematic diagram that opens ice that rises;
Fig. 7 is the positive back taper assembly spiral of the anti-ice schematic diagram that opens ice that descends.
Reference numeral: 1, fixed bearing, 3, plunger case, 4, plunger, 5, oil feeding reservoirs, 6, the cartridge type freely movable bearing, 7, the positive back taper assembly of anti-ice, 8, external screw thread, 9, pile, 10, screw propeller, 11, leading block, 12, internal thread, 13, tidal level sensor-based system one, 15, the positive back taper assembly inwall of anti-ice, 16, tidal level sensor-based system two, 17, liquid level control switch valve, 18, one way valve, 19, the surface heat exchange system.
The specific embodiment
Below in conjunction with drawings and Examples, the inventive method and device are described in detail.
The active ice resistant device of a kind of auto spiral lifting of the present invention; in conjunction with two cover automatic lifting systems; one cover surface heat exchange system, one overlaps the leading block system, is issued to the effect of best marine site, protection ice formation ocean engineering structure in the mating reaction of this quadruplet system:
At first be hydraulic pressure from jacking system, it is made up of plunger, plunger case, oil feeding reservoirs, one way valve, liquid level control switch valve, tidal level sensor-based system one.
Next be spiral from jacking system, it is made up of the positive back taper assembly of anti-ice, screw propeller, tidal level sensor-based system
Be arranged on the surface heat exchange system of the positive back taper assembly outer wall inner surface of anti-ice once more, form by horizontal heat pipe and vertical heat pipe and distribute as net shape.The accumulation that reduces trash ice is played miscellaneous function with the generation of climbing phenomenon
Under the mating reaction of above three cover systems; again in conjunction with the leading block system; realized that the self adaptation tidal range changes, active is opened ice, the full-automatic accumulation and the functions such as threat of climbing phenomenon to platform of turning round, reduce trash ice; can reduce the adverse effect of ice raft to greatest extent, play the effect of protection platform platform.Be adapted to the more serious marine site of ice condition especially, can protect marine site, ice formation ocean engineering structure effectively.
When the present invention at sea installs:
At first fixed bearing 1 is welded on the appropriate location of pile 9, and three plunger cases 3 are welded on the fixed bearing 1.
Then cartridge type freely movable bearing 6 is sleeved on the outside of pile 9, bottom and three plungers 4 weld together, and plunger 4 is inserted in the plunger case 3.
Pacify take a turn for the better leading block 11 and tidal level sensor-based system 1 on the inner surface of cartridge type freely movable bearing 6 cartridge types part in advance, can adopt the mode that is weldingly connected, after cartridge type freely movable bearing 6 was sleeved on the outside of pile 9, the wheel body of leading block 11 directly contacted with the external surface of pile 9.
To resist the positive back taper assembly 7 of ice to link together with the rotating clutch and the cartridge type freely movable bearing 6 that are arranged on internal thread 12 on the positive back taper assembly inwall 15 then by the external screw thread 8 that is arranged on the cartridge type freely movable bearing 6 top barrel external surfaces.
The positive back taper assembly of anti-ice 7 inside install surface heat exchange system 19 and tidal level sensor-based system 2 16 in advance; The outside installs screw propeller 10 in advance.
Liquid level control switch valve 17 and the tidal level sensor-based system 1 that will be installed at last on the plunger case 3 couple together by lead, and tidal level sensor-based system 2 16 and screw propeller 10 are coupled together by lead.So far finish marine the installation.
Hydraulic pressure of the present invention is made up of plunger 4, plunger case 3, oil feeding reservoirs 5, one way valve 18, liquid level control switch valve 17, tidal level sensor-based system 1 from jacking system.Its operating principle can be explained by Fig. 5:
When tidal level rises, the positive back taper assembly 7 of anti-ice moves upward under self buoyancy, drive connected cartridge type freely movable bearing and leading block 11 and move upward along pile 9 together, owing to cartridge type freely movable bearing 6 and plunger 4 link together, so in plunger case 3, form negative pressure.Liquid level control switch valve 17 is a normally off at this moment, and oil feeding reservoirs 5 oil pressure are higher than plunger case 3, and one way valve 18 is opened, and oil feeding reservoirs 5 makes it reach equilibrium state by one way valve 18 to plunger case 3 fuel feeding.
When tidal level descends, the buoyancy that the positive back taper assembly 7 of anti-ice is subjected to is less than gravity, this moment, plunger 4 was subjected to the pressure of the positive back taper assembly 7 of anti-ice, make plunger case 3 internal pressures be higher than oil feeding reservoirs 5 pressure, this moment, one way valve 18 was in reverse closed condition, liquid level control switch valve 17 also is in closed condition, but along with the reduction of tidal level when the tidal level difference is reduced to setting value, thereby tidal level induction system 1 starts and transmits signal and open liquid level control switch valve 17 to liquid level control switch valve 17, hydraulic oil flows to oil feeding reservoirs 5 by plunger case 3 through liquid level control switch valve 17, thereby reduce oil pressure in the plunger case 3, plunger 4 drives the positive back taper assembly 7 of the anti-ice in top and descends.When the tidal level difference returns to initial value, oil circuit is cut off in 17 outages of tidal level inductor one 13 control liquid level control switch valves, the positive back taper assembly 7 of anti-ice stops to descend, and the positive back taper assembly 7 of anti-so repeatedly ice just can remain with the sea relative position constant along with tidal change.
So liquid level control switch valve 17 is normally closed because the sea remains unchanged when ice raft acts on the positive back taper assembly 7 of anti-ice, and plunger 4 is subjected to downward active force, plunger case 3 pressure rise, so but one way valve is oppositely closed oil feeding reservoirs and can't be communicated with plunger case 3, plunger case 3 keeps inaccessible obstructed state, thereby plunger 4 keeps motionless, makes the positive back taper assembly 7 of connection anti-ice thereon also keep motionless, thereby realizes icebreaking characteristics.
In sum, by this cover hydraulic pressure from the positive back taper assembly 7 of the anti-ice of jacking system can along be arranged on the cartridge type freely movable bearing 6 leading block 17 along with the variation of tidal range from moving elevating movement, and the contact position that the positive back taper assembly 7 of anti-ice is maintained fixed with the sea all the time.Again can the automatic locking lifting gear when ice raft acts on the positive back taper assembly of anti-ice, the operating position that keeps the positive back taper assembly of anti-ice.
Spiral of the present invention is from jacking system, by the positive back taper assembly 7 of anti-ice, screw propeller 10,, tidal level sensor-based system 2 16 is formed.Its mounting method sees above and arranges and to see Fig. 2, Fig. 3.
Its operating principle can be illustrated by Fig. 6, Fig. 7, Fig. 3:
After tidal level is stable, when acting on the positive back taper assembly 7 of anti-ice, ice raft starts spiral from jacking system, at this moment be rotated in the forward under the motive force effect at screw propeller 10, the positive back taper assembly 7 of anti-ice (is from up to down seen) the rotation rising in the direction of the clock along screw thread, sees Fig. 6; When lifting height makes ice raft touch the centre position of bottom reverse taper, send signal to screw propeller 10, thereby make screw propeller 10 reverse rotations slow down the positive back taper assembly 7 rotation rates of climb of anti-ice until static by tidal level sensor-based system 2 16.After this under the reverse rotation motive force effect of screw pusher 10, the positive back taper assembly 7 of anti-ice (sees from up to down) that in the counterclockwise direction rotation descends, and sees Fig. 7; Send signal by tidal level sensor-based system 2 16 to screw propeller 10 when highly making ice raft touch the centre position of top right circular cone when descending, slow down the positive back taper assembly 7 rotation decrease speeds of anti-ice until static thereby screw propeller 10 is rotated in the forward again.So can realize repeatedly that the positive back taper assembly of anti-ice is along the pile function of rotation and lifting repeatedly.
Here screw propeller 10 is by hydraulic pressure or driven by power; For realizing revolving the function that oar propeller 10 oppositely slows down, need reserved part external screw thread 8 tracks to break away from cartridge type freely movable bearing 6 to prevent the positive back taper assembly 7 of anti-ice; Detailed design about tidal level sensor-based system 2 16 is not done introduction owing to the length problem in this article.
By the positive back taper assembly 7 of anti-ice along pile 9 repeatedly rotation and lifting can realize following function, at first as shown in Figure 6: when positive back taper assembly 7 rotations of anti-ice are risen, can produce a powerful thrust from bottom to top and make ice raft crooked broken, so just realize the initiatively purpose of anti-ice to ice raft.Secondly by anti-turning effort 7 of icing positive back taper assembly, make to be deposited in cone and to meet the ice face and meet the trash ice that the ice face swashes along cone and be rotated to the marine of anti-ice piton body both sides or rotate to anti-ice piton body back of the body ice face, matching surface heat-exchange system 19 can realize reducing trash ice and piles up and the effect of climbing phenomenon to the platform threat so again.When positive back taper assembly 7 rotations of anti-ice descended, as Fig. 7, principle was identical.
Surface heat exchange system 19 of the present invention is made up of horizontal heat pipe and vertical heat pipe, distribute as net shape, be arranged in the positive back taper assembly 7 outer wall inner surfaces of anti-ice, its effect is: cooperate anti-rotation of icing positive back taper assembly 7 to realize reducing trash ice and pile up the function that platform is threatened with the climbing phenomenon.Its mounting method sees above, and arranges and sees Fig. 2, Fig. 3, Fig. 6.Its operating principle (see figure 7) is: when the heat pipe position when meeting the ice face, heat pipe sucks heat trash ice is frozen in the cone surface, when these frozen rubble ices when rotating to back of the body ice face, thereby heat pipe is emitted heat and trash ice and contact site, cone surface is melted form water membrane help trash ice and slip into the seabed along the cone surface; Can also make when the rubble ice that freezes rotates to back of the body ice face by appropriate design and should the surface just in time to be in the rubble ice that makes that just can be more prone to like this below the water surface and to come off.
The installation of leading block 11 of the present invention sees above, and arranges and sees Fig. 2, Fig. 3.Can guide the motion vertically of the anti-positive back taper assembly 7 of ice by leading block 17.The rubbing action that effectively reduces between each equipment increases the service life.
Although in conjunction with the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away under the scope situation that aim of the present invention and claim protect, can also make a lot of forms, these all belong within protection scope of the present invention.
Claims (4)
1. the active ice resistant device of an auto spiral lifting, comprise and be sleeved on protected object spud leg outside and the fixed bearing (1) affixed with it, with the affixed hydraulic pressure of fixed bearing (1) from jacking system, with hydraulic pressure from the affixed cartridge type freely movable bearing (6) that is sleeved on protected object spud leg outside of the plunger (4) of jacking system, be sleeved on cartridge type freely movable bearing (6) outside and connected anti-ice piton body, it is characterized in that, described anti-ice piton body is a positive back taper assembly (7), the inner surface of described positive back taper assembly (7) is connected with the outer surface thread of the cartridge type part of cartridge type freely movable bearing (6), on the lower surface of positive back taper assembly (7) screw propeller (10) is installed; Described screw propeller is connected with and is installed in the inner tidal level sensor-based system two (16) of positive back taper assembly (7); Described hydraulic pressure comprises from jacking system: the described plunger (4) that links to each other with the base portion of cartridge type freely movable bearing (6), the plunger case (3) that links to each other with described plunger (4), the oil feeding reservoirs (5) that links to each other with plunger case (3), be arranged in parallel one way valve (18) and liquid level control switch valve (17) between oil feeding reservoirs (5) and plunger case (3), liquid level control switch valve (17) is connected with tidal level sensor-based system one (13).
2. the active ice resistant device of auto spiral lifting according to claim 1 is characterized in that, installs the leading block (11) that the external surface with the protected object spud leg joins on the cartridge type part inner surface of described cartridge type freely movable bearing (6).
3. the active ice resistant device of auto spiral lifting according to claim 1 and 2 is characterized in that, the inside of described positive back taper assembly (7) is equipped with surface heat exchange system (19).
4. the active ice resistant device of auto spiral lifting according to claim 3 is characterized in that, described surface heat exchange system (19) is made up of the heat pipe that distributes as net shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810053497A CN100575613C (en) | 2008-06-12 | 2008-06-12 | The active ice resistant device of auto spiral lifting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810053497A CN100575613C (en) | 2008-06-12 | 2008-06-12 | The active ice resistant device of auto spiral lifting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101289846A CN101289846A (en) | 2008-10-22 |
| CN100575613C true CN100575613C (en) | 2009-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810053497A Expired - Fee Related CN100575613C (en) | 2008-06-12 | 2008-06-12 | The active ice resistant device of auto spiral lifting |
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| CN (1) | CN100575613C (en) |
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| CA2811946C (en) * | 2010-10-21 | 2015-06-09 | Conocophillips Company | Ice worthy jack-up drilling unit with conical piled monopod and sockets |
| CN102628280A (en) * | 2012-04-18 | 2012-08-08 | 中国水电顾问集团中南勘测设计研究院 | Device for reducing ice loads on ocean engineering structure by hydrothermal circulation unit |
| CN103074876B (en) * | 2013-01-06 | 2015-04-29 | 中国海洋石油总公司 | Offshore platform ice breaking device |
| CN103469777B (en) * | 2013-08-29 | 2015-06-24 | 中国海洋石油总公司 | Offshore platform hydraulic self-lifting device |
| CN103485318B (en) * | 2013-09-23 | 2015-10-21 | 浙江海洋学院 | A kind of spud leg deicer |
| CN103966992B (en) * | 2014-05-13 | 2015-10-28 | 大连理工大学 | A kind of ice-resistant jacket platform standpipe anti-icing equipment |
| CN104195987A (en) * | 2014-08-21 | 2014-12-10 | 中国海洋石油总公司 | Detachable ice-breaking damping device used for ocean platform |
| CN107150770B (en) * | 2017-05-26 | 2018-11-06 | 大连理工大学 | A kind of ice resistant device suitable for shell spud leg self-elevating ocean platform |
| CN109800472B (en) * | 2018-12-26 | 2022-09-27 | 哈尔滨工程大学 | Blade surface instantaneous ice load pressure distribution calculation method in ice blade contact process |
| CN110159492B (en) * | 2019-05-31 | 2021-03-09 | 苏州甫腾智能科技有限公司 | Device for reducing vibration of single-pile foundation of offshore wind turbine |
| CN112922523A (en) * | 2021-03-01 | 2021-06-08 | 王甫贵 | Safety maintenance ladder with adjustable aviation maintenance is used |
| CN114351674B (en) * | 2021-12-31 | 2022-10-14 | 江苏科技大学 | Anti-icing defroster of spud leg formula marine structure thing |
| CN114277756B (en) * | 2022-03-07 | 2022-05-31 | 交通运输部天津水运工程科学研究所 | Auxiliary anti-ice device of offshore oil production platform by utilizing associated gas |
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| US3807179A (en) * | 1972-10-02 | 1974-04-30 | Gulf Oil Corp | Deicing systems |
| US4102144A (en) * | 1977-05-31 | 1978-07-25 | Global Marine, Inc. | Method and apparatus for protecting offshore structures against forces from moving ice sheets |
| US4578000A (en) * | 1982-06-15 | 1986-03-25 | Oy Wartsila Ab | Method of protection |
-
2008
- 2008-06-12 CN CN200810053497A patent/CN100575613C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3807179A (en) * | 1972-10-02 | 1974-04-30 | Gulf Oil Corp | Deicing systems |
| US4102144A (en) * | 1977-05-31 | 1978-07-25 | Global Marine, Inc. | Method and apparatus for protecting offshore structures against forces from moving ice sheets |
| US4578000A (en) * | 1982-06-15 | 1986-03-25 | Oy Wartsila Ab | Method of protection |
Non-Patent Citations (2)
| Title |
|---|
| 冰力作用下锥体的合理结构形式及在柱体上设计锥体的合理性探讨. 史庆增等.中国海上油气，第17卷第5期. 2005 |
| 冰力作用下锥体的合理结构形式及在柱体上设计锥体的合理性探讨. 史庆增等.中国海上油气，第17卷第5期. 2005 * |
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