CN215806793U

CN215806793U - Submarine pipeline holding clamp for limiting unidirectional movement of deepwater submarine pipeline

Info

Publication number: CN215806793U
Application number: CN202120361976.7U
Authority: CN
Inventors: 李旭; 杨琥; 戚晓明; 杨伟; 李庆; 郝双户; 余志兵; 徐志辉; 雷震名; 王凤莲
Original assignee: China National Offshore Oil Corp CNOOC; Offshore Oil Engineering Co Ltd
Current assignee: China National Offshore Oil Corp CNOOC; Offshore Oil Engineering Co Ltd
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2022-02-11
Anticipated expiration: 2031-02-09

Abstract

The utility model discloses a submarine pipeline holding clamp for limiting unidirectional movement of a deepwater submarine pipeline, which comprises a holding clamp main body, wherein an upper holding clamp is arranged at the top end of the holding clamp main body, a lower holding clamp is arranged at the bottom end of the upper holding clamp, an upper wing plate is arranged on one side of the upper holding clamp, a lower wing plate is arranged on one side of the lower holding clamp, a fixing screw is arranged at the top end of the upper wing plate, a fixing nut is arranged on the outer side of the bottom end of the fixing screw, a reinforcing plate is arranged at the top of one end of the upper holding clamp, an anode is arranged below the side of the reinforcing plate, and a fixing hole is arranged on the outer side of the upper wing plate, which is close to the fixing screw; the submarine pipeline holding card for limiting the unidirectional movement of the deepwater submarine pipeline serves as an extra tension bearing and transmitting part by being arranged on a special submarine pipeline joint, provides reverse tension for the unidirectional movement of the deepwater submarine pipeline, so that the unidirectional movement of the deepwater submarine pipeline is limited, and the effects of protecting the integrity and safety of facilities at the end part of the deepwater submarine pipeline and underwater facilities connected with the deepwater submarine pipeline can be achieved.

Description

Submarine pipeline holding clamp for limiting unidirectional movement of deepwater submarine pipeline

Technical Field

The utility model relates to the technical field of deepwater seabed marine pipe riser engineering, in particular to a marine pipe clamp for limiting unidirectional movement of a deepwater marine pipe.

Background

The deep sea pipe belongs to the field of deep sea engineering (water depth is more than 1000 m), and is mainly used for conveying production media between underwater production facilities and between the underwater production facilities and a floating platform, and a steel catenary riser (hereinafter referred to as SCR) is generally considered as the extension of the deep sea pipe to the floating platform; the SCR is driven by the motion of the floating platform to generate certain tension load on the deepwater sea pipe connected with the SCR and end facilities (PLET, a connector, a jumper pipe and the like) of the deepwater sea pipe; if the load is too large, the submarine pipeline and end facilities are driven to move, the integrity of the connector and the jumper pipe is affected and even damaged, and the problems of leakage and the like are caused.

The prior art has the following defects or problems:

1. if the load of the existing clamp is too large, the existing clamp can drive submarine pipelines and end facilities to move, so that the integrity of a connector and a jumper pipe is influenced, even the integrity is damaged, and the problems of leakage and the like are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a submarine pipeline holding clamp for limiting unidirectional movement of a deepwater submarine pipeline aiming at the defects of the prior art, and can effectively solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a restriction deep water sea pipe one-way movement's sea pipe embraces card, includes embraces the card main part, the top of embracing the card main part is provided with embraces the card, the bottom of embracing the card is provided with down embraces the card on, one side of embracing the card on is provided with the pterygoid lamina, one side of embracing the card down is provided with down the pterygoid lamina, the top of going up the pterygoid lamina is provided with the fixed screw, the bottom outside of fixed screw is provided with fixation nut, the one end top of embracing the card on is provided with the reinforcing plate, the side below of reinforcing plate is provided with the positive pole, the outside that goes up the pterygoid lamina and is close to the fixed screw is provided with the fixed orifices.

As a preferred technical scheme of the utility model, the upper wing plate is fixedly connected with the upper holding clamp, and two groups of upper wing plates are arranged.

As a preferred technical scheme of the utility model, the lower wing plate is fixedly connected with the lower holding clamp, and two groups of lower wing plates are arranged.

As a preferred technical scheme of the utility model, the fixing holes are holes penetrating through the upper wing plate and the lower wing plate, and six groups of the upper wing plate are arranged.

As a preferred technical scheme of the utility model, the fixing screws are movably connected with the fixing holes, and six groups of the fixing screws are arranged.

As a preferable technical scheme of the utility model, the inner side of the fixing nut is in threaded connection with a fixing screw, and twelve groups of fixing nuts are arranged.

As a preferred technical scheme, the upper holding clamps are in threaded connection with the lower holding clamps through fixing screws and fixing nut fixing holes, the reinforcing plates are fixedly connected with the upper holding clamps, two groups of reinforcing plates are arranged, the anodes are fixedly connected with the upper holding clamps, and eight groups of anodes are arranged.

Compared with the prior art, the utility model provides a submarine pipeline holding clamp for limiting the unidirectional movement of a deepwater submarine pipeline, which has the following beneficial effects:

the submarine pipe holding clamp for limiting the unidirectional movement of the deepwater submarine pipe is arranged on a special submarine pipe joint and serves as an extra tension bearing and transmitting part to provide reverse tension for the unidirectional movement of the deepwater submarine pipe, so that the unidirectional movement of the deepwater submarine pipe is limited, and the purposes of protecting the integrity and safety of facilities at the end part of the deepwater submarine pipe and underwater facilities connected with the deepwater submarine pipe are achieved.

Drawings

FIG. 1 is a schematic structural view of a marine vessel holding clamp for limiting unidirectional movement of a deepwater marine vessel according to the present invention;

FIG. 2 is a schematic view of a clamping assembly structure of the marine vessel for limiting the unidirectional movement of the deepwater marine vessel according to the present invention;

FIG. 3 is a detailed structural diagram of a marine vessel clamp for limiting unidirectional movement of a deepwater marine vessel according to the present invention;

fig. 4 is a detailed structural diagram of a marine vessel clamp for limiting unidirectional movement of a deepwater marine vessel according to the present invention.

In the figure: 1. a clamp main body; 2. an upper holding clamp; 3. clamping the lower clamp; 4. an upper wing plate; 5. a lower wing plate; 6. fixing screws; 7. fixing a nut; 8. a reinforcing plate; 9. an anode; 10. and (7) fixing holes.

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.

Referring to fig. 1-4, in this embodiment: the sea pipe clamp for limiting the unidirectional movement of the deepwater sea pipe is a product for limiting the movement of the deepwater sea pipe; the device has the main functions of transmitting and bearing reverse tension for limiting the movement of the deepwater sea pipe, and limiting the movement of the sea pipe holding clamp, wherein the movable sea pipe holding clamp is formed by welding various components, is fixed with a special sea pipe joint when the offshore deepwater sea pipe is laid through a bolt, and is laid in place along with the sea pipe; the product is formed by welding and assembling wing plates, baffle plates, reinforcing plates 8 and anodes 9, and is connected and fixed by fixing screws 6, and each component is designed by strength and fatigue so as to achieve the purposes of bearing over 300 tons of reverse tension and prolonging the service life of 30 years; the main part of the sea pipe clamp is made of API2HGr50 material, the bolt is made of ASTMA193-B7/M material, and the fixing nut 7 is made of ASTMA194-2H/M material; the design of the marine vessel clamp structure for limiting the unidirectional movement of the deepwater marine vessel mainly depends on large-scale finite element software ANSYS modeling for analysis, the design specification is APIRP2A in consideration of the working condition of the model at each stage of installation and operation of the marine vessel clamp, meanwhile, the special fatigue life analysis is carried out on the welding seam position, the fatigue strength of the welding seam position is estimated mainly based on the recommended method in AWSD1.1 and DNV-RP-C203, the stress change range of the welding seam position calculated according to finite elements is used for estimating the fatigue life by using an S-N curve; the surface of the holding clamp is protected by an anticorrosive coating and an anode 9.

In the embodiment, the upper wing plate 4 is fixedly connected with the upper holding clamp 2, and two groups of upper wing plates 4 are arranged; the lower wing plates 5 are fixedly connected with the lower holding clamps 3, and two groups of lower wing plates 5 are arranged; the fixing holes 10 are holes penetrating through the upper wing plate 4 and the lower wing plate 5, and six groups of the upper wing plate 4 are arranged; the fixing screws 6 are movably connected with the fixing holes 10, and six groups of fixing screws 6 are arranged; the inner side of the fixing nut 7 is in threaded connection with the fixing screw 6, and twelve groups of fixing nuts 7 are arranged and used for bearing pressure and prolonging the service life; go up armful card 2 through set screw 6, fixation nut 7 fixed orifices 10 with embrace 3 threaded connection of card down, reinforcing plate 8 with last armful card 2 fixed connection, reinforcing plate 8 is provided with two sets ofly, positive pole 9 with last armful card 2 fixed connection, positive pole 9 is provided with eight groups, is used for protecting armful card main part 1.

The working principle and the using process of the utility model are as follows: when the device is used, a user calculates the tension required for limiting the unidirectional movement of the pipeline according to the motion analysis of the SCR; designing the structural form and size of the clamp according to the design method of the sea pipe clamp; assembling and manufacturing the holding clamp according to the material requirements proposed by the sea pipe holding clamp; in order to save the offshore construction time, the marine pipe clamp is installed to a prefabricated pipe section containing a special marine pipe joint by using a bolt according to the design requirement on land; transporting the sea pipe section containing the sea pipe clamp to a site pipe laying ship, and laying the sea pipe section in place along with other pipe sections according to a selected pipeline laying process; and connecting the positioned sea pipe clamp with the underwater fixing device through the underwater robot.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a restriction deep water sea pipe one-way movement's sea pipe embraces card which characterized in that: including embracing card main part (1), the top of embracing card main part (1) is provided with embraces card (2), the bottom of going up embracing card (2) is provided with down embraces card (3), the one side of going up embracing card (2) is provided with pterygoid lamina (4), the one side of embracing card (3) down is provided with pterygoid lamina (5), the top of going up pterygoid lamina (4) is provided with set screw (6), the bottom outside of set screw (6) is provided with fixation nut (7), the one end top of going up embracing card (2) is provided with reinforcing plate (8), the side below of reinforcing plate (8) is provided with positive pole (9), the outside that goes up pterygoid lamina (4) and be close to set screw (6) is provided with fixed orifices (10).

2. The marine vessel clamp for limiting unidirectional movement of a deepwater marine vessel as claimed in claim 1, wherein: the upper wing plate (4) is fixedly connected with the upper holding clamp (2), and two groups of upper wing plates (4) are arranged.

3. The marine vessel clamp for limiting unidirectional movement of a deepwater marine vessel as claimed in claim 1, wherein: the lower wing plate (5) is fixedly connected with the lower holding clamp (3), and two groups of lower wing plates (5) are arranged.

4. The marine vessel clamp for limiting unidirectional movement of a deepwater marine vessel as claimed in claim 1, wherein: the fixing holes (10) are holes penetrating through the upper wing plate (4) and the lower wing plate (5), and six groups of the upper wing plate (4) are arranged.

5. The marine vessel clamp for limiting unidirectional movement of a deepwater marine vessel as claimed in claim 1, wherein: the fixing screws (6) are movably connected with the fixing holes (10), and six groups of fixing screws (6) are arranged.

6. The marine vessel clamp for limiting unidirectional movement of a deepwater marine vessel as claimed in claim 1, wherein: the inner side of the fixing nut (7) is in threaded connection with the fixing screw (6), and twelve groups of fixing nuts (7) are arranged.

7. The marine vessel clamp for limiting unidirectional movement of a deepwater marine vessel as claimed in claim 1, wherein: go up embrace card (2) through set screw (6), fixation nut (7) fixed orifices (10) and embrace card (3) threaded connection down, reinforcing plate (8) and last armful card (2) fixed connection, reinforcing plate (8) are provided with two sets ofly, positive pole (9) and last armful card (2) fixed connection, positive pole (9) are provided with eight groups.