CN116972245A

CN116972245A - Underwater ROV connector

Info

Publication number: CN116972245A
Application number: CN202311235362.4A
Authority: CN
Inventors: 潘咏; 徐标; 路厚龙; 饶建红; 张政; 胡仁达
Original assignee: Suzhou Luokeli Technology Co ltd
Current assignee: Suzhou Luokeli Technology Co ltd
Priority date: 2023-09-25
Filing date: 2023-09-25
Publication date: 2023-10-31
Anticipated expiration: 2043-09-25
Also published as: CN116972245B

Abstract

The invention discloses an underwater ROV connector, comprising: the bottom plate and the apron that is connected with the bottom plate through supporting the guide pillar, be provided with the first accommodation hole that is used for holding public head and welds the neck flange on the apron, the correspondence is provided with the second accommodation hole that is used for holding female head and welds the neck flange on the bottom plate, still including the clamp structure that is used for sealing public head and welds neck flange and female head, the clamp structure is including setting up three lamella clamp pieces, drive screw, the screw rod flange who sets up in the bottom plate side and with screw rod flange fastening connection's ROV drive seat between apron and the bottom plate, three lamella clamp pieces are used for pressing from both sides tight or loosening public head and weld neck flange and female head. The underwater ROV connector provided by the invention has the characteristics of higher integration level, convenience in installation, firmness and reliability and suitability for underwater environment.

Description

Underwater ROV connector

Technical Field

The invention relates to the technical field of pipeline connection, in particular to an underwater ROV connector.

Background

The marine oil and gas energy development mode gradually develops into an underwater production mode and an offshore processing mode from traditional platform drilling and production along with the development saturation of offshore energy resources, and an underwater production system mainly comprises an underwater christmas tree, an underwater manifold (PLEM), an underwater pipeline terminal (PLET), corresponding pipelines, a Y-shaped tee joint, connecting flanges of the pipelines and the Y-shaped tee joint and the like, wherein the underwater jumper is divided into a flexible jumper pipe and a rigid jumper pipe, and is an important connecting pipe section between the underwater christmas tree and the underwater manifold, between the manifold and the terminal, between the terminal and the floating platform or the ship.

Because of the influence of multiple factors such as water depth, pressure, medium, visibility, ocean currents and the like, end rigidity and flexible bridging connection are always a great engineering problem, in the process of using the submarine pipeline connector, the existing submarine pipeline connector in the market often has two defects in use, firstly, the existing submarine pipeline connector is not designed for ROV operation, so that the use of the existing submarine pipeline connector is difficult, secondly, the operation of the existing submarine pipeline connector is difficult, and the sealing effect is not ideal.

Disclosure of Invention

The invention mainly solves the technical problem of providing the underwater ROV connector which is used for controlling and installing underwater equipment and has the characteristics of higher integration level, convenience and fastness in installation, firmness and reliability and suitability for underwater environment.

In order to solve the technical problems, the invention adopts a technical scheme that: there is provided an underwater ROV connector comprising: the novel ROV driving device comprises a bottom plate and a cover plate connected with the bottom plate through a supporting guide post, wherein a first accommodating hole for accommodating a male head welding neck flange is formed in the cover plate, a second accommodating hole for accommodating a female head welding neck flange is correspondingly formed in the bottom plate, the novel ROV driving device further comprises a clamp structure for sealing the male head welding neck flange and the female head welding neck flange, the clamp structure comprises three clamp blocks arranged between the cover plate and the bottom plate, a driving screw, a screw connecting flange arranged on the side face of the bottom plate and an ROV driving seat fixedly connected with the screw connecting flange, the three clamp blocks comprise clamp joints and first clamp arms and second clamp arms which are arranged at two ends of the clamp joints in a rotating mode, accommodating cavities are formed in the ends of the first clamp arms and the second clamp arms, two groups of trunnions are arranged in the accommodating cavities in a sliding mode, left-handed threads and right-handed threads which are identical in two tooth distances are arranged on the driving screw, one end of the driving screw penetrates through the trunnions in the two groups of the accommodating cavities and is in threaded mode, and the other end of the driving screw is connected with the other end of the driving screw is in the ROV driving seat fixedly connected with the screw seat, and the end of the driving screw extends to the ROV driving seat.

In a preferred embodiment of the invention, the first clamp arm and the second clamp arm are rotatably connected with the clamp joint through connecting pins and are encircled with the clamp joint to form a fastening structure for clamping or loosening the male neck welding flange and the female neck welding flange.

In a preferred embodiment of the present invention, the fastening structure is a trapezoidal groove provided on the inner side end surfaces of the clamp joint, the first clamp arm and the second clamp arm.

In a preferred embodiment of the present invention, a guide cover is disposed on the cover plate at the periphery of the first receiving hole.

In a preferred embodiment of the invention, three groups of guide posts are arranged between the cover plate and the bottom plate, and the guide posts are uniformly distributed between the three-petal type clamping blocks at 120 degrees respectively.

In a preferred embodiment of the present invention, the bottom plate is provided with a horizontal waist-shaped slot, and the lower end of the small end of the trunnion penetrates through the horizontal waist-shaped slot and is slidably connected with the horizontal waist-shaped slot.

In a preferred embodiment of the present invention, two sets of anode blocks are provided on the cover plate, and two ends of the anode blocks are connected with anode wires on the tri-lobe clamp block.

In a preferred embodiment of the invention, the cover plate is provided with an indication groove and a switch indication mark, and the indication pin arranged on the tri-lobe clamp block extends out of the indication groove.

In a preferred embodiment of the invention, a flexible bellows is arranged between the driving screw and the tri-lobe clamp block and between the driving screw and the screw connecting flange.

In a preferred embodiment of the present invention, the flexible bellows is made of soft rubber.

The beneficial effects of the invention are as follows: the underwater robot arm inputs torsion to the driving screw so that the three-flap type clamp block integrally contracts inwards, the male head welding neck flange and the female head welding neck flange are tightly connected to form an effective metal seal, the underwater robot arm is used for controlling and installing underwater equipment, the underwater robot arm has the characteristics of being high in integration level, convenient and fast to install, firm and reliable, suitable for underwater environment, and meanwhile, the modularized design can be applied to land pipeline and equipment connection.

Drawings

For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

FIG. 1 is a schematic illustration of the structure of an underwater ROV connector of the present invention;

FIG. 2 is a side view of an subsea ROV connector of the present invention;

FIG. 3 is a top view of an underwater ROV connector of the present invention;

FIG. 4 is a B-B cross-sectional view of FIG. 3;

FIG. 5 is a cross-sectional view of an subsea ROV connector of the present invention;

fig. 6 is a bottom view of an underwater ROV connector of the present invention;

FIG. 7 is a schematic view of a three-piece clamp block according to the present invention;

fig. 8 is a schematic diagram of an underwater ROV connector of the present invention under test.

Detailed Description

The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-6, the embodiment of the invention is as follows: an underwater ROV connector, comprising: the novel hydraulic support comprises a bottom plate 1 and a cover plate 2, wherein the bottom plate 1 and the cover plate 2 are fixedly connected through a supporting guide post 3 and a nut, a first accommodating hole for accommodating a male head welding neck flange 4 is formed in the cover plate, a second accommodating hole for accommodating a female head welding neck flange 5 is correspondingly formed in the bottom plate, the novel hydraulic support also comprises a clamp structure for sealing the male head welding neck flange and the female head welding neck flange, the clamp structure comprises a three-piece clamp block 6, a driving screw 7, a screw connecting flange 8 and an ROV driving seat 9, wherein the three-piece clamp block is arranged between the cover plate and the bottom plate, the screw connecting flange 8 is arranged on the side surface of the bottom plate, the ROV driving seat 9 is fixedly connected with the screw connecting flange, the three-piece clamp block comprises a clamp joint 61, a first clamp arm 62 and a second clamp arm 63 which are rotatably arranged at two ends of the clamp joint, the end parts of the first clamp arm and the second clamp arm, which are far away from the clamp joint, are provided with accommodating cavities 64, trunnions 65 which are slidably connected with the bottom plate are arranged in the two groups of accommodating cavities, left-handed threads 10 and right-handed threads 11 which have the same tooth distances, one end of the driving screw penetrates through the two groups of accommodating cavities, and the trunnions are connected with the trunnions and the left-handed threads and the two trunnions and the corresponding screw threads extend to the right-handed screw driving seat respectively, and the left-handed screw driving seat is formed in the corresponding screw driving seat, and the screw driving seat, and the screw is screwed.

Specifically, first clamp arm and second clamp arm pass through connecting pin 12 and clamp joint rotate and are connected and form the fastening structure who is used for pressing from both sides tight or loosen public head and welds neck flange with the clamp joint, the bottom mounting of connecting pin is in the U-shaped inslot of bottom plate, make first clamp arm and second clamp arm around the connecting pin free rotation, fastening structure is for setting up trapezoidal recess 66 on clamp joint, first clamp arm and the inboard terminal surface of second clamp arm, horizontal waist type groove 13 has been seted up on the bottom plate, install dog 14 and hexagon screw 15 in order to realize with horizontal waist type groove's sliding connection behind the small end of trunnion runs through horizontal waist type groove, when the robot arm is located on the ROV actuating seat under water, for driving screw input torsion, when driving screw anticlockwise rotatory, because two sections left-hand screw threads, right-hand screw thread and corresponding trunnion threaded connection, make the first clamp arm and the second clamp arm of three lamella formula clamp pieces outwards open simultaneously in opposite directions, when driving screw clockwise rotation, the first arm and the second clamp arm of three lamella formula pieces outwards move with the trunnion, realize the horizontal waist type groove with the direction of tightening up in the horizontal waist type groove with the small end of trunnion, and the horizontal waist type groove is realized.

Specifically, the periphery of the first accommodating hole on the cover plate is provided with a guide cover 16, three groups of guide posts 17 are fastened between the cover plate and the bottom plate through bolts, the three groups of guide posts are uniformly distributed between the three-petal type clamp blocks at 120 degrees respectively, the main function is that after leaving the guide cover, the male head welding neck flange continuously provides secondary guide and righting when being centered and butted with the female head welding neck flange, the accuracy of the installation position is ensured, in particular operation, the middle part of the female head welding neck flange is provided with a flange plate, the flange plate is fastened on the bottom plate through bolts, the welding groove end at the bottom is in butt welding connection with a fixing device, the flange connection mode can also be changed, the upper part of the female head welding neck flange is a hub end, be equipped with sealed annular and guide screw hole, sealing ring 18 is installed in advance through guide screw 19 in female head welds neck flange sealed annular, male head welds neck flange welding on mobile device, accomplish primary guidance through the horn mouth and the straight hole of uide cover, accomplish secondary guidance by three guide posts when entering apron and bottom plate intermediate position, the back is installed in place in the direction, the robot arm is sat on the ROV driver seat under water, it makes three lamella clamp pieces whole inwards shrink to input torsion for the drive screw, make male, female head welds neck flange zonulae occludens and compresses tightly the sealing ring through the inclined plane effect of trapezoidal recess, form effectual metal seal, guarantee to connect and seal reliably.

As shown in fig. 8, when the sealing effect of the connector of the present invention needs to be tested before entering water, the male pressure test blind flange 20 and the female pressure test blind flange 21 are provided with the pressure test interfaces 22 respectively, so that the installation and sealing test can be simulated, and the reliability of the product in application can be ensured.

Specifically, two groups of anode blocks 23 are arranged on the cover plate, two ends of each anode block are connected with anode wires 24 on the three-petal clamp blocks, the anode blocks are usually magnesium-based or zinc-based alloy with lower potential, and the anode blocks are connected with each iron-based material through the anode wires.

Specifically, be equipped with instruction groove 25 and switch on the apron and instruct sign 26, be provided with the indicator pin 27 on the three lamella clamp piece, the indicator pin is generally installed on the trunnion, and the upper end stretches out from the instruction inslot, scribbles waterproof red paint on the indicator pin generally, can make things convenient for the clear discernment to the junction position state of three lamella clamp piece and drive screw under any environment, especially under water.

Specifically, flexible bellows 28 are fastened between the driving screw and the three-flap clamp block and between the driving screw and the screw connecting flange through screws, wherein the flexible bellows is made of soft rubber, and can isolate submarine organisms and impurities from directly entering the driving screw to prevent blockage.

The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present invention.

Claims

1. An underwater ROV connector, comprising: the novel ROV driving device comprises a bottom plate and a cover plate connected with the bottom plate through a supporting guide post, wherein a first accommodating hole for accommodating a male head welding neck flange is formed in the cover plate, a second accommodating hole for accommodating a female head welding neck flange is correspondingly formed in the bottom plate, the novel ROV driving device further comprises a clamp structure for sealing the male head welding neck flange and the female head welding neck flange, the clamp structure comprises three clamp blocks arranged between the cover plate and the bottom plate, a driving screw, a screw connecting flange arranged on the side face of the bottom plate and an ROV driving seat fixedly connected with the screw connecting flange, the three clamp blocks comprise clamp joints and first clamp arms and second clamp arms which are arranged at two ends of the clamp joints in a rotating mode, accommodating cavities are formed in the ends of the first clamp arms and the second clamp arms, two groups of trunnions are arranged in the accommodating cavities in a sliding mode, left-handed threads and right-handed threads which are identical in two tooth distances are arranged on the driving screw, one end of the driving screw penetrates through the trunnions in the two groups of the accommodating cavities and is in threaded mode, and the other end of the driving screw is connected with the other end of the driving screw is in the ROV driving seat fixedly connected with the screw seat, and the end of the driving screw extends to the ROV driving seat.

2. The subsea ROV connector of claim 1, characterized in that the first and second clamp arms are pivotally connected to the clamp joint by a connecting pin and are surrounded by the clamp joint to form a fastening structure for clamping or releasing the male and female neck flanges.

3. The subsea ROV connector of claim 2, wherein the fastening structure is a trapezoidal groove provided on the inboard end surfaces of the clamp joint, the first clamp arm, and the second clamp arm.

4. The subsea ROV connector of claim 1, characterized in that a guide cap is provided on the cover plate at the periphery of the first receiving hole.

5. The underwater ROV connector of claim 4, wherein three sets of guide posts are provided between the cover plate and the base plate, the guide posts being equispaced 120 degrees apart between the tri-lobe clamp blocks.

6. The underwater ROV connector of claim 1, wherein the base plate is provided with a horizontal waist-shaped groove, and the lower end of the small end of the trunnion is connected with the horizontal waist-shaped groove in a sliding manner after penetrating through the horizontal waist-shaped groove.

7. The underwater ROV connector of claim 1, wherein the cover plate is provided with two sets of anode blocks, and two ends of the anode blocks are connected with anode wires on the tri-lobe clamp blocks.

8. The underwater ROV connector of claim 1, wherein the cover plate is provided with an indication groove and a switch indication mark, and the indication pin provided on the tri-lobe clamp block extends out of the indication groove.

9. The subsea ROV connector of claim 1, characterized in that a flexible bellows is provided between the drive screw and the tri-lobe clamp block and screw connection flange.

10. The subsea ROV connector of claim 9, characterized in that the flexible bellows is of soft rubber material.