Marine static flexible pipeline emergency plugging device

Abstract

The utility model discloses an ocean static flexible pipeline emergency plugging device which comprises a main frame, and a pipe pressing device and a multi-stage oil cylinder are arranged in the main frame. The pipe pressing device comprises an upper fixing plate, a base and supporting stand columns between the upper fixing plate and the base. Guide plates for connecting every two adjacent supporting stand columns are symmetrically arranged in the middles of the supporting stand columns. A guide column penetrates through the upper fixing plate close to the outer side face, penetrates through the guide plate and is connected with the pressing rod. An oil cylinder is arranged at the lower end of the upper fixing plate, and the output end of the oil cylinder is connected with a pressing rod. A supporting rod support is arranged on the base, a supporting rod is arranged in the supporting rod support in a penetrating mode, the supporting rod comprises a supporting rod body, a connecting rod is embedded in the supporting rod body, and the unoccupied end of the connecting rod is connected with a multi-stage oil cylinder through a connecting plate. The pressing rod is further provided with an upper locking column, the supporting rod body is further provided with a lower locking column, and an adjustable lock is installed between the upper locking column and the lower locking column. When the submarine pipeline leaks, the emergency plugging device can be put underwater to clamp the two sides of a leakage point of the pipeline for emergency plugging.

Description

Technical Field

[0001] The utility model relates to the technical field of marine engineering construction, in particular to an emergency plugging device for marine static flexible pipelines. Background Art

[0002] At present, submarine oil pipelines include steel submarine pipelines and flexible composite hose pipelines. The flexible composite hose is made of metal and non-metal materials. Once the flexible composite hose leaks, such as being scratched by anchors or foreign objects, the crude oil transported by the entire pipeline will leak, thereby polluting the seawater. Moreover, the gaps in the metal layer of this flexible pipeline are continuous, which will cause crude oil or seawater to penetrate into the metal layer of the entire pipeline. After a long time, the metal layer will be damaged and the entire pipeline will be scrapped. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an emergency plugging device for a marine static flexible pipeline.

[0004] The utility model is realized by adopting the following technical solutions.

[0005] A marine static flexible pipeline emergency plugging device comprises a main frame, in which a pipe pressing device and a multi-stage oil cylinder are arranged; the pipe pressing device comprises an upper fixed plate, a base and a supporting column therebetween, and a guide plate connecting two adjacent supporting columns is symmetrically arranged in the middle of the supporting column; a guide column is passed through the upper fixed plate near the outer side surface, and the guide column passes through the guide plate and is connected to a pressure rod; an oil cylinder is arranged at the lower end of the upper fixed plate, and the output end of the oil cylinder is connected to the pressure rod; a support rod support is provided on the base, and a support rod is passed through the support rod support, and the support rod comprises a support rod body, a connecting rod is embedded in the support rod body, and the free end of the connecting rod is connected to the multi-stage oil cylinder through the connecting plate; an upper locking column is also provided on the pressure rod, and a lower locking column is also provided on the support rod body, and an adjustable lock is installed between the upper locking column and the lower locking column.

[0006] Furthermore, fixed cross beams are provided on both side ends of the upper fixed plate.

[0007] Furthermore, a pointed half-axle is installed at the lower part of the pressure rod.

[0008] Furthermore, pressure rod connecting blocks are installed at both ends of the pressure rod.

[0009] Furthermore, a stop sleeve is provided at one end of the support rod body so that the support rod body is floatingly connected to the connecting rod.

[0010] The utility model obtains the following beneficial effects.

[0011] When a submarine pipeline leaks, the utility model determines the leak point, puts the emergency plugging device underwater, clamps both sides of the pipeline leak point, and performs emergency plugging to ensure that the clamped pipeline does not leak before the restoration work is carried out. In addition, the adjustable lock is set in the environment of hydraulic seal failure, which plays a secondary protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the main frame, pipe pressing device and underwater hydraulic system of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the pipe pressing device of the utility model;

[0015] Figure 4 It is a structural schematic diagram of the support rod of the utility model;

[0016] Figure 5 It is a schematic diagram of the installation of the adjustable lock of the utility model.

[0017] Among them: 1. Main frame; 2. Pipe pressing device; 21. Guide column; 22. Locking nut; 23. Upper fixed plate; 24. Support column; 25. Column support frame; 26. Support rod support; 27. Base; 28. Fixed crossbeam; 29. ​​Cylinder; 210. Pressure rod connecting block; 211. Guide plate; 212. Pressure rod; 213. Pointed top half shaft; 3. Underwater hydraulic system; 4. Support base; 5. Umbilical cable winch; 6. Electric control box; 7. Multi-stage cylinder; 8. Electronic warehouse; 9. Support rod; 91. Support rod body; 92. Stop sleeve; 93. Connecting rod; 94. Connecting plate; 10. Upper locking column; 11. Lower locking column; 12. Adjustable lock. DETAILED DESCRIPTION

[0018] The technical solution of the utility model will be clearly and completely described below through specific implementation methods.

[0019] like Figure 1-5 As shown, a marine static flexible pipeline emergency plugging device includes a main frame 1 and a support base 4, and the main frame 1 is installed on the upper part of the support base 4; a pipe pressing device 2, an underwater hydraulic system 3, a multi-stage oil cylinder 7, and an electronic warehouse 8 are arranged inside the main frame 1, and an umbilical cable winch 5 and an electric control box 6 are arranged on the support base 4.

[0020] The pipe pressing device 2 is composed of an upper fixing plate 23, a supporting column 24, and a base 27. The two side ends of the upper fixing plate 23 are provided with fixed beams 28, and the fixed beams 28 are connected to the main frame 1 by bolts. The four end corners of the upper fixing plate 23 are provided with supporting columns 24. The top of the supporting column 24 is provided with a thread and is fixed to the upper fixing plate 23 through a locking nut 22. The base 27 is installed at the lower part of the supporting column 24. The bottom end of the supporting column 24 is provided with a thread and is fixed to the base 27 through a locking nut 22. A support rod support 26 is provided at the upper end of the seat 27; a guide plate 211 connecting adjacent support columns 24 is symmetrically provided at the middle of the support column 24, and a column support frame 25 is provided between adjacent support columns 24 that are not connected by the guide plate 211; two guide columns 21 are respectively passed through openings near the outer side of the upper fixed plate 23, and the guide columns 21 are respectively threadedly connected to the pressure rod 212 through the guide plate 211; an oil cylinder 29 is provided at the lower end of the upper fixed plate 23, and the output end of the oil cylinder 29 is connected to the pressure rod 212. A pressure rod connecting block 210 is threadedly installed on the upper part of the pressure rod 212, and a pointed semi-axis 213 is threadedly installed on the lower part of the pressure rod 212.

[0021] A support rod 9 is arranged between the two support rod supports 26. The support rod 9 is composed of a support rod body 91, a stopper sleeve 92, a connecting rod 93, and a connecting plate 94. The connecting rod 93 is nested inside the support rod body 91. One end of the support rod body 91 is provided with a stopper sleeve 92 to make the support rod body 91 and the connecting rod 93 floatingly connected. A connecting plate 94 is arranged at one end of the connecting rod 93 that is not nested in the support rod body 91. The connecting plate 94 is threadedly connected to the multi-stage oil cylinder 7. In the present application, the support rod body 91 is driven by the multi-stage oil cylinder 7 to insert and withdraw from the support rod support 26, and the pipe is pressed together with the pressure rod 212 during insertion.

[0022] An upper locking column 10 is also threadedly installed on the pressure rod 212 of the present application, and a lower locking column 11 is threadedly installed on the support rod body 91. An adjustable lock 12 is installed between the upper locking column 10 and the lower locking column 11. The two ends of the adjustable lock 12 are respectively hung on the upper locking column 10 and the lower locking column 11. In an environment where the hydraulic seal fails, secondary protection can be achieved through the adjustable lock 12.

[0023] The construction method of the utility model is as follows:

[0024] 1. The device of the utility model is transported to the offshore construction ship. After the location of the pipeline leak is determined, the ship is put in place for the first time, and the underwater part of the first device is lifted and placed in the water;

[0025] 2. After the device is lowered to the predetermined position, determine the position where the pipe needs to be clamped, and place the pressure rod 212 of the pipe pressing device 2 above the pipe;

[0026] 3. The multi-stage oil cylinder 7 works, and the support rod 9 extends, so that the pipeline is between the pressure rod 212 and the support rod 9. At this time, the oil cylinder 29 works to press the pipeline tightly;

[0027] 4. The ship is in position for the second time and the second device is lowered into the sea. The process is the same as the first device. The second device presses the other side of the pipeline.

[0028] By using the marine static flexible pipeline emergency plugging device of the present application, once a leak occurs, the plugging device of the present application is installed within a certain distance on both sides of the leak point to clamp the pipeline. On the one hand, after the crude oil between the two clamping devices has leaked, no more leakage will occur. On the other hand, the metal layer of the pipeline will not be completely corroded. During the clamping period, the factory re-produces new composite hoses and joints, transports them to the sea, cuts the damaged composite pipeline, and installs and replaces it.

[0029] The embodiments described above are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the technical requirements.

Claims

1. An emergency plugging device for a marine static flexible pipeline, comprising a main frame (1), characterized in that: The main frame (1) is provided with a pipe pressing device (2) and a multi-stage oil cylinder (7); the pipe pressing device (2) comprises an upper fixing plate (23), a base (27) and a supporting column (24) therebetween, and a guide plate (211) for connecting two adjacent supporting columns (24) is symmetrically provided at the middle of the supporting column (24); a guide column (21) is penetrated by the upper fixing plate (23) near the outer side surface, and the guide column (21) passes through the guide plate (211) and is connected to a pressing rod (212); a cylinder (29) is provided at the lower end of the upper fixing plate (23), and the output of the cylinder (29) is The outlet end is connected to the pressure rod (212); a support rod support (26) is provided on the base (27), a support rod (9) is inserted into the support rod support (26), the support rod (9) comprises a support rod body (91), a connecting rod (93) is embedded in the support rod body (91), and the free end of the connecting rod (93) is connected to the multi-stage cylinder (7) through a connecting plate (94); an upper locking column (10) is also provided on the pressure rod (212), and a lower locking column (11) is also provided on the support rod body (91), and an adjustable lock (12) is installed between the upper locking column (10) and the lower locking column (11).

2. The marine static flexible pipeline emergency plugging device according to claim 1 is characterized by: Fixed cross beams (28) are provided at both side ends of the upper fixed plate (23).

3. The marine static flexible pipeline emergency plugging device according to claim 1 is characterized by: A pointed semi-axle (213) is installed at the lower part of the pressure rod (212).

4. The marine static flexible pipeline emergency plugging device according to claim 1 is characterized by: Pressure rod connecting blocks (210) are installed at both ends of the pressure rod (212).

5. The marine static flexible pipeline emergency plugging device according to claim 1 is characterized by: A stopper sleeve (92) is provided at one end of the support rod body (91) so that the support rod body (91) is floatingly connected to the connecting rod (93).

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