The erecting tools of recoverable claw connector
Technical field
The present invention relates to the pipeline fastening means, relate in particular to a kind of can the realization submarine pipeline is connected and the erecting tools of recuperable recoverable claw connector fast.Belong to offshore oil engineering field.
Background technology
Undersea pipe-laying is the important component part that oil-gas field development is built, and aspects such as exploitation, production and the product of offshore oil and gas field be defeated are outward played crucial effect.Need adopt different connectors and interconnection technique to the connection between various submarine pipelines and the fixation means.Like interconnecting between: manifold, production tree, the end of line set facility (PLET) all is will jump pipe, flow to manage and be connected on these fixation means through connector.Therefore, the connection of highly effective and safe is important techniques in the subsea production system.
At present, to the connection between various submarine pipelines and the fixation means, adopt following connected mode usually:
⑴ bolt flange formula ways of connecting: this kind mode is when bolt flange connects; Must guarantee the installation accuracy of a plurality of bolts (generally at least 8) at the flange upper bolt hole; And connect for deep underwater pipes; Owing to can only transmit image the action adjustment is observed and done to on-the-spot installation situation through underwater robot; Make installation accuracy descend greatly, require whole connected system must reduce for the requirement of installation accuracy then, this has just greatly limited the bolt flange connection and has been used for the deep underwater pipes connection.Therefore, existing bolt and flange form ways of connecting not only are suitable for the depth of water and are restricted, and connect time-consuming.
⑵ adopt the claw connector to carry out ways of connecting: the claw connector belongs to a kind of typical deep water jockey fast, wherein, is provided with claw structure, as adapter connector.Because it has abandoned the bolt connection; Accurately the aligning and complicated pretension action under deepwater environment of having avoided bolt fully; Can between various submarine pipelines and fixation means, connect; And to replace the bolt group through the structure that driving ring presses down claw be that flange provides pretightning force, avoided bolt to connect the difficult problem that a plurality of holes are accurately aimed at, thereby greatly reduced the installation accuracy requirement to flange; Shortened the underwater operation time, be applicable to that more the flange in the environment connects in the deep water; And the hydraulic-driven stable action is avoided the damaged in collision to vitals, has improved the security of docking operation; Therefore, the requirement that aligns of pipeline is only arranged when it is installed under water, installation action is simple, and installation period is shorter, belongs to typical interconnection technique fast.
Whether keep drive units such as hydraulic cylinder according to the claw connector under water, can the claw connector be divided into recoverable and recoverable not.Owing to after the recoverable connector does not provide sealing force to realize sealing through drive unit under water, still be retained under water, therefore, operating cost is than higher, and is faced with the danger that drive unit lost efficacy under the permanent load.And therefore recoverable claw connector, has reduced operating cost owing to can reclaim it, utilize.
But this kind recoverable claw connector brings difficulty for the recovery operation owing to there is not special-purpose recovery instrument.Under this realistic situation, designed the present invention.
Summary of the invention
Main purpose of the present invention is to overcome the above-mentioned shortcoming that prior art exists, and a kind of erecting tools of recoverable claw connector is provided, and it can send into the joint of claw connector in the water, also completion connects; And constantly different what connect, through the action completion erecting tools itself of self and the locking and the release of pipe joint, realized recovery to recoverable claw connector.
The objective of the invention is to realize by following technical scheme:
A kind of erecting tools of recoverable claw connector is characterized in that: comprise frame structure, Drive Structure, hoisting structure and several hydraulic locking mechanisms, wherein; Drive Structure is installed on the middle part of frame structure; Hoisting structure is installed on frame structure inside, and hoisting structure is connected with Drive Structure through several hydraulic cylinders, and several hydraulic locking mechanisms are installed on the frame structure Lower Half; Several hydraulic locking mechanism is arranged on the inside of frame structure, and circularizes distribution.
Said frame structure comprises: top disc, be positioned at the bottom the guiding bullet, be positioned at the middle part several columns and underwater robot control plate; Wherein, Connect as one through several columns between top disc and the guiding bullet, and form the profile and the load support structure of whole connector; Plate controlled by underwater robot and top disc is fixed as one.
Said Drive Structure comprises: the disc of two drivings; The disc of two drivings is: upper supporting disk and following carrier; Pass through several columns between upper supporting disk and the following carrier; And maintenance and top disc and the identical opening direction of guiding bullet, several hydraulic locking mechanisms are evenly distributed on upper supporting disk and carrier is inner down; Two discs form with the lead of frame structure through the guiding column sleeve and cooperate, and are fixedly connected with hydraulic means above the disc.
Said hydraulic means comprises: several soft landing hydraulic cylinders drive hydraulic cylinder with several, and soft landing hydraulic cylinder and top disc are fixed together, and the cylinder bar and the upper supporting disk of soft landing hydraulic cylinder are fixed, and drive hydraulic cylinder and fix with following carrier; Drive the upper and lower both sides of hydraulic cylinder and stretch out hydraulic cylinder rod, wherein, the hoisting ring in last hydraulic cylinder rod and the hoisting structure is fixed, and following hydraulic cylinder rod passes the hydraulic cylinder piston rod hole of upper supporting disk and fixes with following tray.
Said hydraulic locking mechanism comprises: array mechanical locking device, several catch bar and several mechanical positioning plates; The mechanical locking device annular spread is on the guiding bullet; Several catch bars are installed on the upper supporting disk respectively with several mechanical positioning plates, and evenly distribute ringwise.
Said mechanical locking device is 120 ° of annular spread on the guiding bullet, and this mechanical locking device comprises: it is inner that several latch segments and several seats that are locked, latch segment are installed in the seat that is locked.
Said latch segment holder is a frame structure.
The bottom of said guiding bullet is provided with bell, and reinforcement is installed on the bell.
Said hoisting structure comprises: hoisting ring, this hoisting ring links together with several upper cylinder half bars that are arranged on the driving hydraulic cylinder through several holes that are arranged on the suspension ring bottom.
Beneficial effect of the present invention: the present invention is owing to adopt technique scheme, and it can send into the joint of claw connector in the water, also completion connects; And constantly different what connect, through the action completion erecting tools itself of self and the locking and the release of pipe joint, realized recovery to recoverable claw connector.
Description of drawings:
Fig. 1 looks sketch map for structure master of the present invention.
Fig. 1 b cooperates sketch map for the present invention with the claw joint.
Fig. 2 is a top disc structural representation of the present invention.
Fig. 3 is a upper supporting disk structural representation of the present invention.
Fig. 4 is carrier and pipe joint assembly structure sketch map about the present invention.
Fig. 4 b is carrier and pipe joint assembly structure cutaway view about the present invention.
Fig. 5 is the present invention's bullet structural representation that leads.
Fig. 6 is a hoisting ring structural representation of the present invention.
Fig. 7 is a mechanical locking device sketch map of the present invention.
Main label declaration among the figure:
1. hoisting ring; 2. top disc; 3. soft landing hydraulic cylinder; 4. upper supporting disk; 4a. upper supporting disk hydraulic locking mechanism; 41. last ring leghole; 42. hydraulic locking mechanism; 43. hydraulic cylinder piston rod hole; 44. mechanical positioning plate fixing hole; 5. descend carrier; 5a. following carrier hydraulic locking mechanism; 6. guiding bullet; 61. guiding bullet leghole; 62. reinforcement; 63. bell; 7. mechanical locking device; 71. latch segment 71; 72 seats that are locked; 8. catch bar; 9. column; 10. mechanical positioning plate; 11. driving hydraulic cylinder; 12. control plate; 13. pipe joint; 131 hangers; 132 suspension ring tops; Neck in 133; 134 suspension ring bottom; 21. apical ring leghole; 22. soft landing hydraulic cylinder installing hole.
The specific embodiment
Like Fig. 1-shown in Figure 7; The present invention includes: frame structure, Drive Structure, hoisting structure and several hydraulic locking mechanisms, wherein, frame structure is as the profile and the load support of whole connector erecting tools; Drive Structure is through establishing upward ring leghole 41 above that; And pass the middle part that several columns 9 are connected frame structure, and cooperate with the lead formation that is located at frame structure through being located at oneself guiding column sleeve on one's body, hoisting structure is installed on the inside of frame structure; And hoisting structure drives hydraulic cylinder 11 through several and is connected with Drive Structure; Several hydraulic locking mechanisms are installed on the guiding cone 6 that is positioned at the frame structure Lower Half, and several identical hydraulic locking mechanisms are arranged on the inside of the guiding bullet 6 on the frame structure, and circularize distribution.
Frame structure comprises: top disc 2, be positioned at the bottom guiding bullet 6, be positioned at the middle part several columns 9 and underwater robot control plate 12; Pass through three root posts 9 between the top disc 2 of present embodiment and the guiding bullet 6; And pass the apical ring leghole 21 that is located on the top disc 2 and connect as one; Three root posts, 9 lower ends are passed guiding bullet leghole 61 and are connected with guiding bullet 6, thereby form the external frame structure of whole connector; Underwater robot is controlled plate 12 and top disc 2 and is fixed as one through bolt connecting mode, and top disc 2 is provided with soft landing hydraulic cylinder installing hole 22, is positioned on the bell 63 of guiding bullet 6 bottoms reinforcement 62 to be installed with proof strength.6 effects of guiding bullet are the aligned that are used for whole device at the connection initial stage, and column 9 simultaneously, also is the track of Drive Structure motion as supporting construction.
Drive Structure comprises: the disc of two drivings, that is: carrier 5, two discs formed with the lead of frame structure through the guiding column sleeve and cooperate under upper supporting disk 4 reached, and two discs can move freely along lead.Be fixedly connected with hydraulic means above the disc, that is: several soft landing hydraulic cylinders 3 drive hydraulic cylinder 11 with several, pass through three root posts 9 between upper supporting disk 4 and the following carrier 5; And the opening direction that maintenance and top disc 2 and guiding bullet 6 are identical; Soft landing hydraulic cylinder 3 is fixed together through bolt connecting mode and top disc 2, and the cylinder bar of soft landing hydraulic cylinder 3 and upper supporting disk 4 are fixing, drives hydraulic cylinder 11 and fixes with following carrier 5; Drive hydraulic cylinder 11 upper and lower both sides and stretch out hydraulic cylinder rod; Wherein, the hoisting ring 1 in last hydraulic cylinder rod and the hoisting structure is fixing, and following hydraulic cylinder rod passes the hydraulic cylinder piston rod hole 43 of tray 4 and fixes with following tray 5; Be evenly distributed with several mechanical positioning plate fixing holes 44 on the outer surface of upper supporting disk 4; Upper supporting disk 4 inner annular several hydraulic locking mechanisms 42 that evenly distribute, same, also annular is evenly distributed with several carrier hydraulic locking 5a of mechanism down in carrier 5 inside down.
As shown in Figure 6; Hoisting structure comprises: hoisting ring 1; The top of hoisting ring 1 is provided with hanger 131 and is used to pass the hawser lifting; Suspension ring top 132 adopts welding manner to link together with middle neck 133 and hanger 131, and hoisting ring 13 links together through being arranged on several holes on the suspension ring bottom 134 and being arranged on several upper cylinder half bars that drive hydraulic cylinder 11; The upper cylinder half bar of the driving hydraulic cylinder 11 of present embodiment is three.
Hydraulic locking mechanism comprises: array mechanical locking device 7, several catch bar 8 and several mechanical positioning plates 10, mechanical locking device 7 are installed on the guiding bullet 6, and the mechanical locking device 7 of present embodiment is three groups, and catch bar 8, mechanical positioning plate 10 are three.Three groups of mechanical locking devices 7 are 120 ° of annulars and evenly distribute on guiding bullet 6, three catch bars 8 and three mechanical positioning plates 10 are installed in respectively on the upper supporting disk 4, and on carrier 4, are 120 ° of annulars and evenly distribute.
Array mechanical locking device 7 comprises: several latch segments 71 and several seats 72 that is locked; The latch segment holder is the frame structure that four block plates are welded into; Latch segment 71 is installed in seat 72 inside that are locked, and mechanical locking device 7 distributes on guiding bullet 6 ringwise.
During use, adopt following steps:
⑴ at first be connected through hoisting ring 1 top of hoisting structure with rope, rope is used for of the present inventionly transferring and reclaiming through lifting body.Through cable and hoisting ring 1 lifting; The pipe joint 13 that the present invention carries is put under water fast; Observe through underwater robot (ROV), when 1 to 2 meter of the present invention and submarine pipeline joint vertical range, stop to transfer fast, slowly transfer subsequently; Utilize the upside down funnel profile and the submarine pipeline joint coarse alignment of guiding bullet 6, the present invention is placed on the submarine pipeline joint.
⑵ promote the upper supporting disk 4 on the driving mechanism, following carrier 5 through soft landing hydraulic cylinder 3, carries pipe joint 13 to dock with the submarine pipeline joint; Simultaneously, mechanical locking device 7 lockings prevent erecting tools and submarine pipeline joint accidental separation; Subsequently, following carrier 5 presses down the inner driving ring of pipe joint 13 under the promotion that drives hydraulic cylinder 11, drives the sealing that is connected that claw is realized pipe joint 13 and submarine pipeline joint.
⑶ following carrier hydraulic locking mechanism 5a, the upper supporting disk hydraulic locking 4a of mechanism release on upper supporting disk 4, the following carrier 5 are stayed pipe joint 13 on the submarine pipeline joint.Then, lifting cable traction erecting tools is accomplished the withdrawal work of erecting tools.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.