CN113832941B - Supporting system for inhibiting dynamic response of deepwater self-elevating platform and operation method - Google Patents
Supporting system for inhibiting dynamic response of deepwater self-elevating platform and operation method Download PDFInfo
- Publication number
- CN113832941B CN113832941B CN202111244997.1A CN202111244997A CN113832941B CN 113832941 B CN113832941 B CN 113832941B CN 202111244997 A CN202111244997 A CN 202111244997A CN 113832941 B CN113832941 B CN 113832941B
- Authority
- CN
- China
- Prior art keywords
- supporting
- fixedly connected
- truss
- ship body
- conveying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000004044 response Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 230000000670 limiting effect Effects 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 14
- 238000011084 recovery Methods 0.000 claims description 5
- 230000000452 restraining effect Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 3
- 230000002441 reversible effect Effects 0.000 claims description 3
- 230000002829 reductive effect Effects 0.000 abstract description 7
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
Images
Classifications
-
- 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
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
- E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Jib Cranes (AREA)
- Ship Loading And Unloading (AREA)
Abstract
The invention discloses a supporting system for inhibiting dynamic response of a deep water self-elevating platform and an operation method, the supporting system comprises a main ship body and three pile legs which are connected to the main ship body in a sliding mode, a supporting device is arranged between every two adjacent pile legs and comprises a supporting truss, a conveying device is arranged on the main ship body and comprises a first conveying mechanism and a second conveying mechanism, the first conveying mechanism comprises a sliding rail group arranged on the main ship body, a conveying piece is connected to the sliding rail group in a sliding mode, one end of the supporting truss is hinged to the conveying piece, the other end of the supporting truss is detachably connected with a locking device, the locking device is fixedly connected with the bottom ends of the pile legs, and a supporting assembly is installed on the side face of the main ship body. The supporting device can effectively reduce the dynamic response, especially the displacement response, of the deep water self-elevating platform. The rigidity of the platform structure is obviously increased, the natural vibration period is reduced, and the probability of resonance with the marine environment load can be reduced.
Description
Technical Field
The invention relates to the technical field of ocean engineering, in particular to a supporting system for inhibiting dynamic response of a deep water self-elevating platform and an operation method.
Background
At present, offshore oil exploration and exploitation gradually move to deep water areas in China, the requirement on the applicable water depth of the self-elevating platform is higher and higher, and the development of a safe deep water self-elevating platform is necessary. The self-elevating platform has high structural flexibility, so that the dynamic response is obvious under severe sea conditions, and the dynamic response is intensified along with the increase of the working water depth. Therefore, it is an important object to develop a system for suppressing the dynamic response of a deep water jack-up platform, which is suitable for improvement of an existing platform and application to a new platform, without affecting the structural characteristics of the jack-up platform itself.
Disclosure of Invention
The invention aims to provide a supporting system for restraining the dynamic response of a deep-water jack-up platform and an operation method, which are used for solving the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a supporting system for inhibiting dynamic response of a deep water self-elevating platform, which comprises a main ship body and three pile legs connected to the main ship body in a sliding manner, and is characterized in that a supporting device is arranged between every two adjacent pile legs, the supporting device comprises a supporting truss, a conveying device is arranged on the main ship body, the conveying device comprises a first conveying mechanism and a second conveying mechanism, the first conveying mechanism is arranged corresponding to the top end of the supporting truss, the second conveying mechanism is arranged corresponding to the bottom end of the supporting truss, the first conveying mechanism comprises a slide rail group arranged on the main ship body, a conveying piece is connected onto the slide rail group in a sliding manner, one end of the supporting truss is hinged onto the conveying piece, the other end of the supporting truss is detachably connected with a locking device, the locking device is fixedly connected with the bottom ends of the pile legs, and a supporting assembly is arranged on the side surface of the main ship body.
Preferably, the slide rail group includes first slide rail, first slide rail include with main hull side fixed connection's first slide and with main hull bottom surface fixed connection's second slide, second slide bilateral symmetry is provided with the second slide rail, two the second slide rail all with main hull bottom surface fixed connection, first slide bilateral symmetry is provided with the third slide rail, two the third slide rail all with main hull side fixed connection.
Preferably, the conveying piece comprises a conveying block connected with the first slide rail and the third slide rail in a sliding manner, a barrel groove is formed in the conveying block, a sliding block is connected in the barrel groove in a sliding manner, the sliding block is matched with the second slide rail, and the supporting truss is hinged to the sliding block; the slider lateral wall fixedly connected with spacing pin, the bucket groove with the second slide rail lateral wall all seted up with the through-hole of spacing pin looks adaptation, the slider with carry the piece the second slide rail passes through spacing pin the spacing cooperation of through-hole.
Preferably, locking device include with spud leg fixed connection's installation piece, the installation piece is kept away from the mounting groove has been seted up to one side of spud leg, the stiff end of symmetry fixedly connected with hydraulic stem in the mounting groove, two the equal fixedly connected with locking arm of hydraulic stem output, two the equal fixedly connected with locking rack plate of locking arm inner wall, the support truss bottom fixedly connected with spud leg chord member, locking rack plate with the meshing of spud leg chord member, the flexible arm of fixedly connected with in the mounting groove, flexible arm both ends respectively with two locking arm outer wall fixed connection.
Preferably, the supporting component comprises a plurality of rotary supporting frames fixedly connected to the side wall of the main hull, the rotary supporting frames are arranged on the side face of the main hull at equal intervals, and the rotary supporting frames are arranged corresponding to the supporting trusses.
Preferably, the second conveying mechanism comprises a plurality of hydraulic winches fixedly connected to the side face of the main hull, one ends of slings are fixedly wound on the hydraulic winches, the bottom ends of the supporting trusses are fixedly connected with lifting rings, the bottom face of the main hull is fixedly connected with a movable pulley assembly, and the other ends of the slings penetrate through the movable pulley assembly and are fixedly connected with the lifting rings; and a position sensor is arranged in the mounting groove.
Preferably, the movable pulley assembly comprises a fixed pulley fixedly connected to the side face of the main ship body, a pulley slide rail is fixedly connected to the bottom face of the main ship body, a movable pulley is slidably connected to the pulley slide rail, the movable pulley corresponds to the fixed pulley, and the sling sequentially penetrates through the fixed pulley, the movable pulley and the hanging ring fixedly connected to the hanging ring.
Preferably, the leg chord member is provided with a leg diagonal brace.
An operation method of a supporting system for restraining the dynamic response of a deep water self-elevating platform comprises the following steps:
s1: lifting the supporting device at one side of the first slideway through a sling to enable the supporting device to be separated from the rotary supporting frame;
s2: rotating the support frame to be parallel to the ship side;
s3: the top end of the support truss moves to a first sliding rail through a conveying piece, and the bottom end of the support truss is lowered to a position where the locking device is parallel to the pile leg chord member through a sling;
s4: the top end of the support truss vertically descends to the head end of the second slideway along the first slideway, and the bottom end of the support truss is lowered down for the same distance through a sling;
s5: the head end of the support truss moves along the second slide way, meanwhile, a position sensor arranged in the locking device is used for detecting the relative position of the locking device and the pile leg chord member, and the bottom end of the support truss is adjusted through the sling to enable the pile leg chord member to correspond to the locking rack plate;
s6: in the locking device, a hydraulic support rod pushes a locking arm and a locking rack plate to be matched and locked with a pile leg chord member, and the bottom end of a support truss is locked; a limiting pin on the side wall of the sliding block is in limiting fit with a through hole on the side wall of the second sliding rail, and the top end of the support truss is locked;
s7: the conveying block and the movable pulley component return according to the original route and are used for installing and moving the supporting truss on the other side of the first slideway;
s8: the support truss recovery step is the reverse process of the installation step.
The invention discloses the following technical effects:
1. the supporting device provided by the invention can effectively reduce the dynamic response, especially the displacement response, of the deep water self-elevating platform. The rigidity of the platform structure is obviously increased, the natural vibration period is reduced, and the probability of resonance with marine environmental loads can be reduced.
2. The supporting device can be used for reforming an old platform, and the safety of the old platform is improved. The method can also be applied to the design of a new platform and increase the applicable water depth of the platform.
3. The supporting device can realize automatic installation and recovery, and avoids the difficulty of manual operation on the sea.
4. The supporting device is positioned at the side of the ship in the non-working state of the platform, and does not influence the lifting and towing of the platform. The platform is positioned at the bottom of the ship in a working state, does not occupy the working space of the platform and does not influence the working performance of the platform.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of a support system for suppressing the dynamic response of a deep water jack-up platform according to the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
fig. 3 is a top view of a support system of the present invention for suppressing the dynamic response of a deep water jack-up platform;
FIG. 4 is an isometric view of a locking device of the present invention;
FIG. 5 is a schematic view of the locking device of the present invention engaged with a leg chord;
FIG. 6 is a schematic view of the fitting relationship between the mounting block and the slider according to the present invention;
FIG. 7 is a schematic view of the slider of the present invention;
fig. 8 is a schematic view of the construction of the moving sheave assembly of the present invention.
Wherein, 1-main hull, 2-spud legs, 3-supporting truss, 4-first slideway, 5-second slideway, 6-second slideway, 7-third slideway, 8-conveying block, 9-sliding block, 10-mounting block, 11-hydraulic rod, 12-locking arm, 13-locking rack plate, 14-spud leg chord, 15-telescopic arm, 16-rotary supporting frame, 17-sling, 18-hydraulic winch, 19-pulley slideway, 20-movable pulley, 21-spud leg diagonal brace, 22-fixed pulley and 23-limit pin.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides a supporting system for inhibiting the dynamic response of a deep water self-elevating platform, which comprises a main ship body 1 and three pile legs 2 connected to the main ship body 1 in a sliding manner, and is characterized in that a supporting device is arranged between every two adjacent pile legs 2, the supporting device comprises a supporting truss 3, a conveying device is arranged on the main ship body 1, the conveying device comprises a first conveying mechanism and a second conveying mechanism, the first conveying mechanism is arranged corresponding to the top end of the supporting truss 3, the second conveying mechanism is arranged corresponding to the bottom end of the supporting truss 3, the first conveying mechanism comprises a slide rail group arranged on the main ship body 1, the slide rail group is connected with a conveying piece in a sliding manner, one end of the supporting truss 3 is hinged to the conveying piece, the other end of the supporting truss 3 is detachably connected with a locking device, and the locking device is fixedly connected with the bottom ends of the pile legs 2; the main hull 1 is provided with a support assembly on the side.
When the supporting truss 3 does not work, the supporting truss 3 is supported through the supporting assembly, and when the supporting truss 3 works, the supporting truss 3 is conveyed to a position between the two adjacent pile legs 2 through the matching work of the first conveying mechanism and the second conveying mechanism, so that the two adjacent pile legs 2 are fixed.
Further, for transporting the supporting truss 3 of the main hull 1 side to the main hull 1 bottom surface and fixing with the spud leg 2 cooperation, set up the slide rail group, the slide rail group includes first slide rail, first slide rail include with 1 side fixed connection's of main hull first slide 4 and with 1 bottom surface fixed connection's of main hull second slide 5, the symmetry in second slide 5 both sides is provided with second slide rail 6, two second slide rails 6 all with 1 bottom surface fixed connection of main hull, 4 side symmetries in first slide are provided with third slide rail 7, two third slide rails 7 all with 1 side fixed connection of main hull. The first slide rail and the third slide rail 7 are used for sliding the conveying block 8, and the second slide rail 6 is used for conveying the slide block 9.
Further, the conveying piece comprises a conveying block 8 which is connected with the first sliding rail and the third sliding rail 7 in a sliding mode, a barrel groove is formed in the conveying block 8, a sliding block 9 is connected in the barrel groove in a sliding mode, the sliding block 9 is matched with the second sliding rail 6, and the supporting truss 3 is hinged to the sliding block 9; 9 lateral walls of the slide block are fixedly connected with limit pins 23, through holes matched with the limit pins 23 are formed in the side walls of the barrel groove and the second slide rail 6, and the slide block 9 is in limit fit with the conveying block 8 and the second slide rail 6 through the limit pins 23 and the through holes. When the conveying block 8 slides to the first slide 4 along the third slide, the sliding block 9 slides to the second slide 5 from the conveying block 8, drivers (not shown in the figure) are arranged in the sliding block 9 and the conveying block 8, the sliding block 9 and the conveying block 8 are driven to move through the drivers, the sliding block 9 is limited through the limiting pin 23, the sliding process is prevented from sliding, meanwhile, a limiting through hole matched with the limiting pin 23 is formed in the side wall of the second slide rail 6, when the sliding block 9 slides to a preset position on the second slide rail 6, the second slide rail 6 is fixed through the limiting effect of the limiting pin 23 and the limiting through hole, the sliding block 9 is prevented from sliding, and meanwhile, the limiting pin 23 can be controlled to extend out and retract through the drivers.
Further, for fixing 3 bottoms of supporting truss, set up locking device, locking device includes the installation piece 10 with 2 fixed connection of spud leg, the mounting groove has been seted up to one side that spud leg 2 was kept away from to installation piece 10, the stiff end of symmetry fixedly connected with hydraulic stem 11 in the mounting groove, the equal fixedly connected with locking arm 12 of 11 outputs of two hydraulic stems, the equal fixedly connected with locking rack plate 13 of two locking arm 12 inner walls, 3 bottoms fixedly connected with spud leg chords 14 of supporting truss, locking rack plate 13 meshes with spud leg chords 14, the flexible arm 15 of fixedly connected with in the mounting groove, flexible arm 15 both ends respectively with two locking arm 12 outer wall fixed connection. The hydraulic stay bar pushes the locking arm 12 and the locking rack plate 13 to be matched and locked with the pile leg chord 14, the bottom end of the support truss 3 is locked, and the stability of the device is improved through the engagement of the support truss 3 and the support truss 3.
Further, for the support truss 3 deposits, set up supporting component, supporting component includes a plurality of rotation support frame 16 of fixed connection at 1 lateral wall of main hull, and a plurality of rotation support frame 16 are equidistant to be set up in 1 side of main hull, and rotation support frame 16 corresponds the setting with support truss 3. The rotating support frames 16 are parallel to the sides of the main hull 1 when the support girder 3 is in use, and support the support girder 3 when the sides of the support girder 3 are vertical.
Further, in order to fix the tail end of the supporting truss 3 and the locking device at the bottom end of the pile leg 2, the second conveying mechanism comprises a plurality of hydraulic winches 18 fixedly connected to the side face of the main ship body 1, one ends of sling ropes 17 are fixedly wound on the hydraulic winches 18, the bottom end of the supporting truss 3 is fixedly connected with a hanging ring, the bottom face of the main ship body 1 is fixedly connected with a movable pulley assembly, and the other ends of the sling ropes 17 penetrate through the movable pulley assembly and are fixedly connected with the hanging ring; and a position sensor is arranged in the mounting groove. The hydraulic winch 18 is connected with a sling 17 to realize the lifting of the tail end of the support truss 3, so that the leg chord 14 at the tail end of the support truss 3 is matched and fixed with the locking device; in order to measure and control the position of the leg chord 14 and ensure the matching of the leg chord 14 and the locking device, a position sensor is arranged in the mounting groove.
Further, in order to convey the bottom end of the supporting truss 3 through the hydraulic winch 18, a movable pulley assembly is arranged and comprises a fixed pulley 22 fixedly connected to the side face of the main hull 1, a pulley slide rail 19 is fixedly connected to the bottom face of the main hull 1, a movable pulley 20 is slidably connected to the pulley slide rail 19, the movable pulley 20 and the fixed pulley 22 are correspondingly arranged, and the sling 17 sequentially penetrates through the fixed pulley 22, the movable pulley 20 and the hanging ring to be fixedly connected. The fixed pulley 22 is used for fixing and limiting the sling 17, and the movable pulley 20 drives the sling 17 to slide on the pulley slide rail 19, so that the sling 17 is prevented from being damaged due to the fact that the sling 17 rubs with the edge of the main hull 1, and meanwhile conveying difficulty is reduced.
Further, in order to improve the stress of the leg chord 14, a leg diagonal brace 21 is arranged on the leg chord 14. A triangular structure is formed between the leg diagonal brace 21 and the leg chord 14, so that the pressure resistance of the leg chord 14 is improved.
An operation method of a supporting system for restraining the dynamic response of a deep-water self-elevating platform comprises the following steps:
s1: lifting the supporting device at one side of the first slideway 4 by a sling 17 to make the supporting device be out of contact with the rotary supporting frame 16;
s2: the rotating support frame 16 is rotated to be parallel to the ship side;
s3: the top end of the support truss 3 moves to a first sliding rail through a conveying piece, and the bottom end of the support truss 3 is lowered to a position where the locking device is parallel to the pile leg chord 14 through a sling 17;
s4: the top end of the support truss 3 vertically descends to the head end of the second slide way 5 along the first slide way 4, and the bottom end of the support truss 3 descends for the same distance through a sling 17;
s5: the head end of the supporting truss 3 moves along the second slideway 5, meanwhile, a position sensor arranged in the locking device is used for detecting the relative position of the locking device and the pile leg chord 14, and the bottom end of the supporting truss 3 is adjusted through a sling 17 to enable the pile leg chord 14 to correspond to the locking rack plate 13;
s6: in the locking device, a hydraulic support rod pushes a locking arm 12 and a locking rack plate 13 to be matched and locked with a pile leg chord 14, and the bottom end of the support truss 3 is locked; a limiting pin 23 on the side wall of the sliding block 9 is in limiting fit with a through hole on the side wall of the second sliding rail 6, and the top end of the supporting truss 3 is locked;
s7: the conveying block 8 and the movable pulley component return according to the original route and are used for installing and moving the supporting truss 3 on the other side of the first slideway 4;
s8: the support truss 3 recovery step is the reverse of the installation step.
The supporting device provided by the invention can effectively reduce the dynamic response, especially the displacement response, of the deep water self-elevating platform. The rigidity of the platform structure is obviously increased, the natural vibration period is reduced, and the probability of resonance with the marine environment load can be reduced. Meanwhile, the supporting device can be used for improving the old platform, and the safety of the old platform is improved. The method can also be applied to the design of a new platform and increase the applicable water depth of the platform. The supporting device can realize automatic installation and recovery, and avoids the difficulty of offshore manual operation. The supporting device is positioned on the side of the ship in a non-working state of the platform, and does not influence the lifting and towing of the platform. The platform is positioned at the bottom of the ship in a working state, does not occupy the working space of the platform and does not influence the working performance of the platform.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (4)
1. A supporting system for restraining dynamic response of a deep water self-elevating platform comprises a main ship body (1) and three pile legs (2) connected to the main ship body (1) in a sliding mode, and is characterized in that a supporting device is arranged between every two adjacent pile legs (2), the supporting device comprises a supporting truss (3), a conveying device is arranged on the main ship body (1), the conveying device comprises a first conveying mechanism and a second conveying mechanism, the first conveying mechanism is arranged corresponding to the top end of the supporting truss (3), the second conveying mechanism is arranged corresponding to the bottom end of the supporting truss (3), the first conveying mechanism comprises a sliding rail set arranged on the main ship body (1), a conveying piece is connected to the sliding rail set in a sliding mode, one end of the supporting truss (3) is hinged to the conveying piece, a locking device is detachably connected to the other end of the supporting truss (3), and the locking device is fixedly connected to the bottom ends of the pile legs (2); a supporting component is arranged on the side surface of the main ship body (1);
the sliding rail set comprises a first sliding rail, the first sliding rail comprises a first sliding rail (4) fixedly connected with the side face of the main ship body (1) and a second sliding rail (5) fixedly connected with the bottom face of the main ship body (1), second sliding rails (6) are symmetrically arranged on two sides of the second sliding rail (5), the two second sliding rails (6) are fixedly connected with the bottom face of the main ship body (1), third sliding rails (7) are symmetrically arranged on two sides of the first sliding rail (4), and the two third sliding rails (7) are fixedly connected with the side face of the main ship body (1);
the conveying piece comprises a conveying block (8) which is connected with the first sliding rail and the third sliding rail (7) in a sliding mode, a barrel groove is formed in the conveying block (8), a sliding block (9) is connected in the barrel groove in a sliding mode, the sliding block (9) is matched with the second sliding rail (6), and the supporting truss (3) is hinged to the sliding block (9); a limit pin (23) is fixedly connected to the side wall of the sliding block (9), through holes matched with the limit pin (23) are formed in the side walls of the barrel groove and the second sliding rail (6), and the sliding block (9), the conveying block (8) and the second sliding rail (6) are in limit fit through the limit pin (23) and the through holes;
the locking device comprises an installation block (10) fixedly connected with the pile leg (2), one side, far away from the pile leg (2), of the installation block (10) is provided with an installation groove, fixed ends of hydraulic rods (11) are symmetrically and fixedly connected in the installation groove, the output ends of the two hydraulic rods (11) are fixedly connected with locking arms (12), the inner walls of the two locking arms (12) are fixedly connected with locking rack plates (13), the bottom end of the supporting truss (3) is fixedly connected with a pile leg chord (14), the locking rack plates (13) are meshed with the pile leg chord (14), telescopic arms (15) are fixedly connected in the installation groove, and two ends of each telescopic arm (15) are fixedly connected with the outer walls of the two locking arms (12) respectively;
the second conveying mechanism comprises a plurality of hydraulic winches (18) fixedly connected to the side faces of the main ship body (1), one ends of slings (17) are fixedly wound on the hydraulic winches (18), the bottom ends of the supporting trusses (3) are fixedly connected with lifting rings, the bottom face of the main ship body (1) is fixedly connected with a movable pulley assembly, and the other ends of the slings (17) penetrate through the movable pulley assembly and are fixedly connected with the lifting rings; a position sensor is arranged in the mounting groove;
remove loose pulley assembly and include fixed connection fixed pulley (22) of main hull (1) side, main hull (1) bottom surface fixedly connected with pulley slide rail (19), sliding connection has movable pulley (20) on pulley slide rail (19), movable pulley (20) with fixed pulley (22) correspond the setting, hoist cable (17) pass in proper order fixed pulley (22), movable pulley (20) with rings fixed connection.
2. The support system for suppressing the dynamic response of the deep water jack-up platform according to claim 1, wherein: the supporting component comprises a plurality of rotary supporting frames (16) which are fixedly connected to the side wall of the main ship body (1), the rotary supporting frames (16) are arranged on the side face of the main ship body (1) at equal intervals, and the rotary supporting frames (16) correspond to the supporting trusses (3).
3. The support system for suppressing the dynamic response of the deep water jack-up platform according to claim 2, wherein: and a pile leg diagonal brace (21) is arranged on the pile leg chord member (14).
4. An operation method of a supporting system for restraining the dynamic response of a deep water self-elevating platform is characterized in that: the support system for inhibiting the dynamic response of the deep water jack-up platform based on claim 3, comprising the following steps of:
s1: lifting the supporting device at one side of the first slideway (4) by a sling (17) to enable the supporting device to be separated from the rotating supporting frame (16);
s2: the rotating support frame (16) rotates to be parallel to the ship side;
s3: the top end of the support truss (3) moves to a first sliding rail through a conveying part, and the bottom end of the support truss (3) is lowered to a position where the locking device is parallel to the pile leg chord member (14) through a sling (17);
s4: the top end of the supporting truss (3) vertically descends to the head end of the second slide way (5) along the first slide way (4), and the bottom end of the supporting truss (3) is lowered for the same distance through a sling (17);
s5: the head end of the supporting truss (3) moves along the second slide way (5), meanwhile, a position sensor arranged in the locking device is used for detecting the relative position of the locking device and the pile leg chord (14), and the bottom end of the supporting truss (3) is adjusted through a sling (17) to enable the pile leg chord (14) to correspond to the locking rack plate (13);
s6: in the locking device, a hydraulic stay bar pushes a locking arm (12) and a locking rack plate (13) to be matched and locked with a pile leg chord member (14), and the bottom end of a supporting truss (3) is locked; a limiting pin (23) on the side wall of the sliding block (9) is in limiting fit with a through hole on the side wall of the second sliding rail (6), and the top end of the supporting truss (3) is locked;
s7: the conveying block (8) and the movable pulley component return according to the original route and are used for installing and moving the supporting truss (3) on the other side of the first slideway (4);
s8: the supporting truss (3) recovery step is the reverse process of the installation step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111244997.1A CN113832941B (en) | 2021-10-26 | 2021-10-26 | Supporting system for inhibiting dynamic response of deepwater self-elevating platform and operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111244997.1A CN113832941B (en) | 2021-10-26 | 2021-10-26 | Supporting system for inhibiting dynamic response of deepwater self-elevating platform and operation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113832941A CN113832941A (en) | 2021-12-24 |
| CN113832941B true CN113832941B (en) | 2022-10-25 |
Family
ID=78966020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111244997.1A Active CN113832941B (en) | 2021-10-26 | 2021-10-26 | Supporting system for inhibiting dynamic response of deepwater self-elevating platform and operation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113832941B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1515328A (en) * | 1974-11-14 | 1978-06-21 | Bethlehem Steel Corp | Marine jack-up apparatus having telescopic legs |
| CN203755282U (en) * | 2014-01-02 | 2014-08-06 | 浙江海洋学院 | Lifting ocean platform |
| WO2014161346A1 (en) * | 2013-04-03 | 2014-10-09 | 四川宏华石油设备有限公司 | Locking apparatus for leg sinking platform |
| CN113212657A (en) * | 2021-05-26 | 2021-08-06 | 中国能源建设集团广东省电力设计研究院有限公司 | Self-installation offshore platform |
-
2021
- 2021-10-26 CN CN202111244997.1A patent/CN113832941B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1515328A (en) * | 1974-11-14 | 1978-06-21 | Bethlehem Steel Corp | Marine jack-up apparatus having telescopic legs |
| WO2014161346A1 (en) * | 2013-04-03 | 2014-10-09 | 四川宏华石油设备有限公司 | Locking apparatus for leg sinking platform |
| CN203755282U (en) * | 2014-01-02 | 2014-08-06 | 浙江海洋学院 | Lifting ocean platform |
| CN113212657A (en) * | 2021-05-26 | 2021-08-06 | 中国能源建设集团广东省电力设计研究院有限公司 | Self-installation offshore platform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113832941A (en) | 2021-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100548794C (en) | Extensible semi-submersible platform | |
| US8070388B2 (en) | Structure for transporting, commissioning and decommissioning the elements of a fixed oil platform and methods for implementing such a structure | |
| US7815398B2 (en) | Methods of positioning an elevating support vessel | |
| FI77909C (en) | TRANSPORTABLE UPPLYFTBAR BORRNINGSPLATTFORM FOER HAVSBORRNING. | |
| US20110158784A1 (en) | Arm assembly and methods of passing a pipe from a first vessel to a second vessel using the arm assembly | |
| US20080237175A1 (en) | Extension assemblies and methods thereof | |
| US20080237170A1 (en) | Extension Bridges and methods of tender assist | |
| US20080243365A1 (en) | Methods of holding station and mooring and elevating support vessel | |
| US20080237174A1 (en) | Crane support apparatus and methods thereof | |
| US6718899B2 (en) | Method for installing a number of risers or tendons and vessel for carrying out said method | |
| US4041711A (en) | Method and apparatus for quickly erecting off-shore platforms | |
| US4969776A (en) | Offshore platforms | |
| CN111377038A (en) | Guide frame for salvage of sunken ship and application thereof | |
| US4658903A (en) | Method for handling wellhead assembly | |
| CN113832941B (en) | Supporting system for inhibiting dynamic response of deepwater self-elevating platform and operation method | |
| CN201512098U (en) | Light self-elevating survey platform over rivers | |
| CN108203975A (en) | A kind of ocean platform | |
| CN104024561A (en) | Method and system for wireline intervention in a subsea well from a floating vessel | |
| KR20110094895A (en) | Derrick lifting structure and oil prospecting ship including the same | |
| CN205259162U (en) | Truss -like hydraulic pressure bolt elevating gear | |
| KR101973083B1 (en) | Offshore structure | |
| CN213535058U (en) | Guide frame for salvaging sunken ship | |
| SU1014786A1 (en) | Method of mounting support column of self-raising offshore drilling rig | |
| WO2024068366A1 (en) | Offshore drilling vessel and installation for performing subsea wellbore related activities | |
| KR800000020B1 (en) | Working table with going up and down shortcolumns on the water-surface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |