CN116085580A

CN116085580A - Maintenance system and maintenance method for underwater pipeline

Info

Publication number: CN116085580A
Application number: CN202211591198.6A
Authority: CN
Inventors: 陈明付
Original assignee: Wanpu Energy Technology Shenzhen Co ltd
Current assignee: Wanpu Energy Technology Shenzhen Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-05-09

Abstract

The invention relates to the technical field of underwater pipeline maintenance and discloses a maintenance system and a maintenance method of an underwater pipeline, wherein the maintenance system of the underwater pipeline comprises a supporting member and an underwater robot, wherein a cleaning device and a glue spraying device are arranged in the underwater robot, when the maintenance work of the underwater pipeline is implemented, a to-be-maintained area in the pipeline can be cleaned by the underwater robot, then the supporting member is fixed in the to-be-maintained area in the pipeline, a closed space surrounding the pipeline is formed between the supporting member and the pipeline, and therefore, plugging glue is filled into the closed space through the glue spraying device arranged in the underwater robot until the closed space is filled with the plugging glue, so that the plugging glue can completely cover the to-be-maintained area, repair of a pipeline leakage point is completed, and the supporting member can be removed after the plugging glue is completely cooled, so that the underwater pipeline is completed.

Description

Maintenance system and maintenance method for underwater pipeline

Technical Field

The invention relates to the technical field of underwater pipeline maintenance, in particular to a maintenance system and a maintenance method of an underwater pipeline.

Background

Pipeline transportation (Pipeline transport) is a transport means for transporting liquid and gas materials over long distances using pipelines as transport means, and therefore pipelines often need to be placed in deep water environments.

However, when immersed under water for a long time, part of the components in the pipeline can react with chemical substances in the doping in the water to cause corrosion of the pipeline, and leakage of water inflow and transportation resources of the pipeline occurs.

Disclosure of Invention

The invention mainly aims to provide a maintenance system and a maintenance method for an underwater pipeline, and aims to solve the technical problems that the pipeline is corroded due to chemical reaction with chemical substances in water doping in a deepwater environment of the pipeline, and resources of water inflow and transportation of the pipeline are leaked.

In order to achieve the above object, a first aspect of the present invention provides a maintenance system for an underwater pipeline, including a support member and an underwater robot, wherein a cleaning device and a glue spraying device are configured in the underwater robot, the cleaning device is used for cleaning impurities on the surface of the pipeline, the support member includes a first support member and a second support member, the first support member is detachably connected with the second support member, a closed space surrounding the pipeline is formed when the first support member and the second support member pinch the pipeline, the first support member and/or the second support member are provided with a water outlet, the second support member and/or the first support member are provided with a glue filling port, and the underwater robot is used for controlling the glue spraying device to be communicated with the glue filling port so as to input plugging glue into the closed space.

Further, the first bearing piece internal surface is provided with first sealing baffle, the second bearing piece internal surface is provided with the second sealing baffle, first bearing piece with when the second bearing piece is wrapped up in the pipeline, with first sealing baffle with the second sealing baffle forms airtight space.

Further, the end part of the first bearing member is detachably provided with a first fastener, the end part of the second bearing member is detachably provided with a second fastener, a contact part of the first bearing member and the first fastener is provided with a first sealing member, and a contact part of the second bearing member and the second fastener is provided with a second sealing member.

Further, a sealing groove is formed in one side, far away from the airtight space, of the first sealing baffle and the second sealing baffle, and the first sealing piece and the second sealing piece are arranged in the sealing groove.

Further, the first supporting piece and the second supporting piece are provided with a plurality of screw holes, the first supporting piece and the second supporting piece are connected through screws, the first fastening piece is connected with the first supporting piece through screws, and the second fastening piece is connected with the second supporting piece through screws.

Further, a glue filling groove is formed in one end, close to the first sealing baffle plate and/or the second sealing baffle plate, of the closed space, the glue filling opening is communicated with the glue filling groove, and the water outlet is communicated with one end, far away from the glue filling opening, of the closed space.

Further, the cleaning device comprises a rust removing assembly and a polishing assembly, wherein the rust removing assembly is used for removing impurities on the surface of the pipeline, and the polishing assembly is used for polishing the surface of the pipeline to be smooth.

Further, spout mucilage binding and put and include the device body and squeeze the subassembly, the device body is provided with out the glue mouth, be provided with in the device body and be used for the holding chamber of shutoff glue, squeeze the subassembly install in the device body, be used for with the shutoff glue is followed out the glue mouth is extruded.

Further, the glue squeezing assembly comprises a screw rod, a piston piece and a rotary table, wherein the piston piece is arranged in the accommodating cavity, a threaded hole is formed in the device body, the screw rod is connected with the device body through the threaded hole, the first end of the screw rod is connected with the piston piece, and the second end of the screw rod is connected with the rotary table.

A second aspect of the present invention proposes a maintenance method of an underwater pipeline, the method being applied to the maintenance system of an underwater pipeline described above, the method comprising:

acquiring a region to be maintained in a pipeline;

controlling the cleaning device to clean the area to be maintained;

the first bearing piece and the second bearing piece are wrapped and clamp the area to be maintained, so that a closed space surrounding a pipeline is formed by the first bearing piece and the second bearing piece;

adjusting the relative positions of the first bearing and the second bearing, and fixing the first bearing and the second bearing in a region to be maintained after the water outlet is positioned above the glue filling opening;

placing the first seal and the second seal into the seal slot, securing the first fastener to the first support, and securing the second fastener to the second support;

abutting the glue outlet of the glue spraying device with the glue filling opening, and controlling the glue spraying device to fill glue into the closed space until the sealing glue fills the closed space;

and after the bearing piece is kept static for a preset period of time, the bearing piece is detached from the area to be maintained.

The beneficial effects are that:

the invention provides a maintenance system and a maintenance method of an underwater pipeline, wherein the maintenance system of the underwater pipeline comprises a bearing piece and an underwater robot, wherein a cleaning device and a glue spraying device are arranged in the underwater robot, when the maintenance work of the underwater pipeline is implemented, a to-be-maintained area in the pipeline can be cleaned by the underwater robot, then the bearing piece is fixed in the to-be-maintained area in the pipeline, so that a closed space surrounding the pipeline is formed between the bearing piece and the pipeline, and plugging glue is filled into the closed space by the glue spraying device arranged in the underwater robot until the closed space is filled with the plugging glue, so that the plugging glue can completely cover the to-be-maintained area, repair of a pipeline leakage point is completed, and the bearing piece can be removed after the plugging glue is completely cooled, so that the underwater pipeline is completed.

Drawings

FIG. 1 is an exploded view of a support according to one embodiment of the present invention;

FIG. 2 is a cross-sectional view of a glue-spraying device according to an embodiment of the invention;

fig. 3 is a flowchart of a method of maintaining an underwater pipeline according to an embodiment of the present invention.

Wherein:

1. a support; 11. a first support; 111. a glue filling port; 112. a first sealing barrier; 113. a first fastener; 114. a first seal; 12. a second support; 121. a water outlet; 122. a second sealing barrier; 123. a second fastener; 124. a second seal; 13. sealing grooves; 14. a screw hole; 15. a screw; 16. a glue filling groove; 2. a glue spraying device; 21. a device body; 211. a glue outlet; 22. a screw; 23. a piston member; 24. a turntable.

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the connection may be mechanical connection, direct connection or indirect connection through an intermediate medium, and may be internal connection of two elements or interaction relationship of two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Referring to fig. 1, an embodiment of the present invention provides a maintenance system for an underwater pipeline, including a support 1 and an underwater robot, wherein a cleaning device and a glue spraying device 2 are configured in the underwater robot, the cleaning device is used for cleaning impurities on the surface of the pipeline, the support 1 includes a first support 111 and a second support 121, the first support 111 is detachably connected with the second support 121, a closed space surrounding the pipeline is formed when the first support 111 and the second support 121 clamp the pipeline, a water outlet 121 is provided in the first support 111 and/or the second support 121, a glue filling port 111 is provided in the second support 121 and/or the first support 111, and the underwater robot is used for controlling the glue spraying device 2 to be communicated with the glue filling port 111 so as to input plugging glue into the closed space.

As described above, the maintenance system for an underwater pipeline provided by the invention is suitable for performing maintenance on a remote transportation pipeline in an underwater area, and comprises a support member 1 for supporting and enabling plugging glue to wrap the pipeline and an underwater robot (not shown), wherein the support member 1 can be hauled to a leakage point of the pipeline by the underwater robot, and can also be transported to the leakage point of the pipeline by other transportation equipment such as a ship, a crane tower and the like, furthermore, the support member 1 is provided with an underwater robot which is an intelligent robot and is convenient for hauling a lifting ring and the like, the underwater robot is internally provided with a controller for controlling the robot to work, and the controller can store a certain program or instructions and the like for controlling the underwater robot to complete the pipeline maintenance work; furthermore, the underwater robot is also integrated with a vision system and a communication module in communication connection with the ground equipment, so that underwater real-time environment pictures can be collected and transmitted to the ground equipment, and the ground staff can conveniently distribute instructions to the underwater robot to control the work of the robot according to the underwater real-time environment pictures. The cleaning device and the glue spraying device 2 are arranged in the underwater robot, wherein the cleaning device and the glue spraying device 2 can be directly arranged on a mechanical arm of the underwater robot, and can also be mounted at the position of a machine body of the underwater robot in a mounting mode, when the pipeline maintenance is carried out, the cleaning device can be clamped by the mechanical arm of the underwater robot so as to clean the area near the pipeline leakage point, and then the glue spraying device 2 is clamped to spray glue into a closed space formed by the supporting piece 1 and the outer surface of the pipeline; the bearing member 1 comprises a first bearing member 111 and a second bearing member 121, screw holes 14 are formed in the first bearing member 111 and the second bearing member 121, and an assembling and splicing mode between the first bearing member 111 and the second bearing member 121 is preferably set as a mode of assembling the screws 15, but in some embodiments, a sticking and splicing mode can also be used; during assembly, the first bearing member 111 can be placed on one side of a pipeline leakage point through the underwater robot, the second bearing member 121 is placed on the other side of the pipeline leakage point and then spliced and assembled, wherein the cross section of the first bearing member 111 is semicircular and the cross section of the second bearing member 121 is semicircular, a tubular structure with an annular cross section is formed after splicing and assembling, two ends of the first bearing member 111 and the second bearing member 121 are protruded towards the center of a circle along the axial direction to form a sealing baffle capable of clamping the pipeline, two ends of the first bearing member 111 and the second bearing member 121 form a through hole with the radius identical to the radius of the pipeline, the middle parts of the first support 111 and the second support 121 form a closed space surrounding the pipeline, that is, the diameters of the two end openings of the closed space formed by the first support 111 and the second support 121 are equal to the diameter of the pipeline, but smaller than the diameter of the middle part between the two end openings of the closed space, when the first support 111 and the second support 121 are spliced, the first support 111, the second support 121 and the outer surface of the pipeline form a hollow closed space, and the manufacturing materials of the first support 111 and the second support 121 have certain structural rigidity so as to resist the pressure of water in a deep water area on the first support 111 and the second support 121; in order to facilitate drainage, the underwater robot can adjust the positions of the first support 111 and the second support 121 relative to the pipeline, the water outlet 121 of the assembled support 1 is positioned above, the glue filling port 111 is positioned below the water outlet 121, and in order to completely drain water in the closed space, the glue filling port 111 and the water outlet 121 are preferably arranged at different supports 1, namely, if the glue filling port 111 is arranged at the first support 111, the water outlet 121 is arranged at the second support 121, and the glue filling port 111 and the water outlet 121 are mutually far away; after the support piece 1 is assembled, the underwater robot is connected with the glue outlet 211 of the glue spraying device 2 and the glue filling opening 111, wherein the glue outlet 211 of the glue spraying device 2 and the glue filling opening 111 can be directly connected, or can be connected through a conveying pipe suitable for underwater operation, the underwater robot is used for operating the glue spraying device 2 to fill plugging glue into a closed space, the plugging glue can drain water from a water outlet 121 while filling the whole closed space until the plugging glue fills the whole closed space, after standing for a period of time, the plugging glue is cooled and tightly attached to the surface of a pipeline, and then the support piece 1 is removed, so that maintenance work on a damaged pipeline is completed.

In one embodiment, the first support 111 has a first sealing baffle 112 on an inner surface, the second support 121 has a second sealing baffle 122 on an inner surface, and the first support 111 and the second support 121 form the closed space with the first sealing baffle 112 and the second sealing baffle 122 when the pipe is wrapped by the first support and the second support 121.

As described above, the inner surface of the first supporting member 111 is provided with the first sealing baffle plates 112, two first sealing baffle plates 112 are provided, and are respectively and correspondingly disposed at the inner surfaces of the two ends of the first supporting member 111, the contour of the first sealing baffle plates 112 is identical to that of the pipeline, that is, the contour of the first sealing baffle plates 112 is in a semicircular shape with the inner diameter identical to that of the pipeline, the inner surface of the second supporting member 121 is provided with the second sealing baffle plates 122 corresponding to the first sealing baffle plates 112, the first sealing baffle plates 112 and the second sealing baffle plates 122 are disposed in parallel, that is, the first sealing baffle plates 112 and the second sealing baffle plates 122 are disposed in the same cross section, the structure of the second sealing baffle plates 122 is identical to that of the first sealing baffle plates 112, and after the two sealing baffle plates are spliced, a complete circular ring is formed. When the first support 111 and the second support 121 pinch the pipe, the first sealing baffle 112 and the second sealing baffle 122 separate the space formed by splicing the first support 111 and the second support 121 from the external space, so as to form a closed space surrounding the pipe with the outer surface of the pipe.

In one embodiment, the end of the first supporting member 111 may be detachably provided with a first fastening member 113, the end of the second supporting member 121 may be detachably provided with a second fastening member 123, a contact portion between the first supporting member 111 and the first fastening member 113 is provided with a first sealing member 114, and a contact portion between the second supporting member 121 and the second fastening member 123 is provided with a second sealing member 124.

As described above, in order to enhance tightness between two ends of the airtight space and the external space, the end portion of the first bearing member 111 may be detachably provided with the first fastening member 113, where the first fastening member 113 may be fixed with the first bearing member 111 by means of a screw 15 or the like, meanwhile, a first sealing member 114 may be provided between the first fastening member 113 and the first bearing member 111, where the first sealing member 114 is semicircular, and similarly, a second sealing member 124 identical to the first sealing member 114 may be provided between the second fastening member 123 and the second bearing member 121, where the first sealing member 114 and the second sealing member 124 are sealing soft rubber pads, where the joint of the first sealing member 114 and the second sealing member 124 may be flat, where complementary ridges and grooves or the like may be provided at the joint of the first sealing member 114 and the second sealing member 124, where the joint of the first sealing member and the second sealing member may be parallel to the axial direction of the circular ring, where the joint of the first sealing member 114 and the second sealing member 124 may also have a certain inclination angle with the axial direction of the circular ring, i.e. where the joint of the first sealing member 114 and the second sealing member 124 may be inclined from the vertical viewing angle as shown in fig. 1, and the joint of the first sealing member and the second sealing member may be inclined at a certain inclination angle.

In one embodiment, a sealing groove 13 is formed on a side of the first sealing baffle 112 and a side of the second sealing baffle 122 away from the closed space, and the first sealing member 114 and the second sealing member 124 are disposed in the sealing groove 13.

As mentioned above, the sealing grooves 13 are formed on the sides of the first sealing baffle 112 and the second sealing baffle 122 away from the airtight space, that is, the sealing grooves 13 are formed on the sides of the first sealing member 114 and the second sealing member 124 facing the first fastening member 113, and the sealing members 114 and the second sealing member 124 are disposed in the sealing grooves 13, so that the thickness of the first sealing member 114 and the second sealing member 124 should be slightly greater than the width of the sealing grooves 13, the height of the first sealing member 114 and the second sealing member 124 should be slightly greater than the height of the sealing grooves 13, so that when the first supporting member 111 and the second supporting member 121 clamp the pipeline, the sealing members 114 and the second sealing member 124 can be pressed to ensure the tightness of the connection, and simultaneously, the sealing members can be disposed at the contact positions of the first supporting member 111 and the second supporting member 121, so as to ensure the tightness of the connection.

In one embodiment, the first support 111 and the second support 121 are each provided with a plurality of screw holes 14, the first support 111 and the second support 121 are connected by screws 15, the first fastening member 113 is connected to the first support 111 by screws 15, and the second fastening member 123 is connected to the second support 121 by screws 15.

As described above, the first support 111 and the second support 121 are provided with the plurality of screw holes 14, the first support 111 and the second support 121 are fixed by the screw 15 to clamp the pipe, the first fastening member 113 is connected to the first support 111 by the screw 15, and the second fastening member 123 is connected to the second support 121 by the screw 15.

In one embodiment, a glue-pouring groove 16 is disposed at one end of the closed space near the first sealing baffle 112 and/or the second sealing baffle 122, the glue-pouring opening 111 is communicated with the glue-pouring groove 16, and the water outlet 121 is communicated with one end of the closed space far away from the glue-pouring opening 111.

As described above, an annular glue-pouring groove 16 may be disposed at one end of the closed space near the first sealing baffle 112 and/or the second sealing baffle 122, the glue-pouring pipe of the glue-spraying device may pour the plugging glue into the closed space through the glue-pouring opening 111, and a guiding opening is disposed at one side of the glue-pouring groove 16 facing the center of the closed space, and the guiding opening may guide the plugging glue to enter the closed space relatively quickly.

In one embodiment, the cleaning apparatus includes a rust removal assembly for removing impurities from a pipe surface and a polishing assembly for polishing the pipe surface smooth.

As described above, the cleaning device includes a rust removing component and a polishing component, wherein the rust removing component may be a water solvent spraying device, and when performing a rust removing operation, the underwater robot water solvent spraying device sprays a rust remover toward the surface of the pipeline to achieve the purpose of removing rust, and the rust removing component may also be an underwater high-pressure water gun, which may spray a high-pressure water column to the surface of the pipeline to physically remove rust; the polishing component can be an underwater polisher or a laser gun and the like, and can polish the surface of the pipeline smoothly, so that the plugging adhesive is convenient to attach to the pipeline.

Referring to fig. 2, in one embodiment, the glue spraying device 2 includes a device body 21 and a glue extruding assembly, the device body 21 is provided with a glue outlet 211, a containing cavity for containing the plugging glue is provided in the device body 21, and the glue extruding assembly is mounted on the device body 21 and is used for extruding the plugging glue from the glue outlet 211.

As described above, the glue spraying device 2 includes a device body 21 and a glue extruding assembly, wherein the device body 21 is shaped like a syringe, a containing cavity for containing the plugging glue is provided in the device body 21, a glue outlet 211 is provided at one end of the containing cavity, and the glue extruding assembly is at least partially disposed in the containing cavity and closely attached to the inner wall of the containing cavity, and the glue extruding assembly can move relative to the device body 21, so that the underwater robot can operate the glue extruding assembly to extrude the plugging glue from the containing cavity into the closed space of the supporting member 1.

In one embodiment, the glue squeezing assembly includes a screw 22, a piston member 23 and a turntable 24, the piston member 23 is disposed in the accommodating cavity, a threaded hole is disposed in the device body 21, the screw 22 is connected with the device body 21 through the threaded hole, a first end of the screw 22 is connected with the piston member 23, and a second end of the screw 22 is connected with the turntable 24.

As described above, the glue extruding assembly includes a screw 22, a piston member 23 and a turntable 24, wherein a threaded hole is provided at one end of the device body 21 far from the glue outlet 211, a thread matching the threaded hole is provided in the screw 22, the screw 22 is connected with the device body 21 through the threaded hole, a first end of the screw 22 extends into the accommodating cavity to be connected with the piston member 23, a side wall of the piston member 23 is tightly attached to an inner wall of the accommodating cavity, a second end of the screw 22 extends out of the accommodating cavity from the threaded hole to be connected with the turntable 24, and when glue extruding is performed, the underwater robot can rotate the turntable 24, so that the screw 22 is pushed towards the glue outlet 211 relative to the device body 21 and the piston member 23, thereby extruding the plugging glue;

in some embodiments, the glue squeezing assembly may also be formed by a push rod and a piston member 23, where a through hole with the same diameter as the push rod is disposed at one end of the device body 21 away from the glue outlet 211, and the push rod and the piston member 23 are connected to the device body 21 in a similar manner, so that when glue is squeezed, the underwater robot can push the push rod to push the piston member 23 to push towards the glue outlet 211, so as to squeeze out the plugging glue.

Referring to fig. 3, a second aspect of the present invention proposes a maintenance method of an underwater pipeline, the method being applied to the maintenance system of an underwater pipeline described above, the method comprising:

s1: acquiring a region to be maintained in a pipeline;

specifically, the area to be maintained in the pipeline can be obtained based on the positioning of external equipment on the pipeline leakage point, or can be obtained through a vision system of the underwater robot after the underwater robot receives the instruction and reaches the designated area;

s2: controlling the cleaning device to clean the area to be maintained;

specifically, the underwater robot can be controlled to clean the area to be maintained by using the carried cleaning device according to the instructions of the ground equipment, or the underwater robot can execute cleaning work according to a preset program, for example, the rust removing assembly is operated to remove rust from the area to be maintained of the pipeline, and then polishing and grinding are performed on the area to be maintained by the operation and grinding assembly to smooth the surface of the pipeline;

s3: the first supporting piece 111 and the second supporting piece 121 are wrapped around the area to be maintained, so that a closed space surrounding the pipeline is formed by the first supporting piece 111 and the second supporting piece;

specifically, the first support 111 is placed on one side of the pipeline at the leakage point by the underwater robot, the second support 121 is placed on the other side of the pipeline at the leakage point, and then the first support 111 and the second support 121 are initially spliced and assembled, at this time, the first support 111 and the second support 121 are not completely fixed on the pipeline, but can still rotate relative to the pipeline to adjust the relative positions of the first support 111 and the second support 121;

s4: adjusting the relative positions of the first support 111 and the second support 121, and fixing the first support 111 and the second support 121 in a maintenance area after the water outlet 121 is positioned above the glue filling opening 111;

specifically, after the step S3, the relative positions of the first support member 111 and the second support member 121 are adjusted by the underwater robot, so that the water outlet 121 is located above the glue filling opening 111, and the underwater robot completely tightens the screw 15 for assembling the first support member 111 and the second support member 121, so that the first support member 111 and the second support member 121 are completely fixed in the to-be-maintained area of the pipeline to form a closed space surrounding the pipeline;

s5: placing the first seal 114 and the second seal 124 into the seal groove 13, securing the first fastener 113 to the first support 111, and securing the second fastener 123 to the second support 121;

specifically, after the step S3, the first sealing member 114 and the second sealing member 124 are placed into the sealing groove 13 formed in the first supporting member 111 and the second supporting member 121 by the underwater robot, further, the underwater robot can adjust the positions of the first sealing member 114 and the second sealing member 124 relative to the sealing groove 13, so that the contact surface of the first sealing member 114 and the second sealing member 124 is offset from the contact surface of the first supporting member 111 and the second supporting member 121, a better sealing effect is provided between the first sealing member 114 and the second sealing member 124, the first fastening member 113 is fixed to the first supporting member 111 by tightening the screw 15 between the first fastening member 113 and the first supporting member 111, and the second fastening member 123 is fixed to the second supporting member 121 by tightening the screw 15 between the second fastening member and the second supporting member 1.

S6: abutting the glue outlet 211 of the glue spraying device 2 with the glue filling opening 111, and controlling the glue spraying device 2 to fill the glue into the closed space until the sealing glue fills the closed space;

specifically, after the steps S1-S5 are performed, the leak point plugging operation is started, the glue outlet 211 of the glue spraying device 2 is abutted with the glue inlet 111 or the glue outlet 211 is communicated with the glue inlet 111 by using a conduit, the glue spraying device 2 is operated to fill the sealed space until the sealed space is filled with the plugging glue, for example, the underwater robot rotates the turntable 24, so that the screw 22 is opposite to the device body 21 and the piston member 23 is pushed towards the glue outlet 211, and the plugging glue is extruded into the sealed space or the underwater robot pushes the push rod, so that the push rod pushes the piston member 23 towards the glue outlet 211, so that the plugging glue is extruded into the sealed space, and the plugging glue can drain water in the sealed space from the drain outlet 121 until the plugging glue is also drained from the drain outlet 121, so that the sealed space is filled with the plugging glue, and the pipeline is completely wrapped to plug the leak point of the pipeline.

S7: and after the bearing piece 1 is stationary for a preset period of time, the bearing piece is detached from the area to be maintained.

Specifically, according to the total cooling time length of different plugging adhesives, standing for a preset time length after the sealing adhesives are filled in the closed space, wherein the static preset time length is longer than the total cooling time length of the plugging adhesives so as to ensure that the plugging adhesives can be completely cooled, the pressure bearing capacity of the cooled plugging adhesives is achieved, leakage points of a pipeline cannot be exposed again due to water pressure, and then the underwater robot removes and recovers all components except the plugging adhesives from the pipeline.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the invention.

Claims

1. The utility model provides a maintenance system of submarine pipeline, its characterized in that includes bearing piece and underwater robot, dispose cleaning device and spouts mucilage binding in the underwater robot, cleaning device is used for cleaing away the impurity on pipeline surface, the bearing piece includes first bearing piece and second bearing piece, first bearing piece with the second bearing piece can dismantle the connection, first bearing piece with form the airtight space who encircles the pipeline when the second bearing piece is wrapped up in the pipeline, first bearing piece and/or second bearing piece is provided with the outlet, second bearing piece and/or first bearing piece is provided with the encapsulating mouth, underwater robot is used for control spout mucilage binding put with encapsulating mouth intercommunication is in order to import the shutoff glue in the airtight space.

2. The system of claim 1, wherein the first support member has a first sealing panel disposed on an inner surface thereof and the second support member has a second sealing panel disposed on an inner surface thereof, the first support member and the second support member forming the enclosed space with the first sealing panel and the second sealing panel when the first support member and the second support member pinch the pipeline.

3. The system of claim 2, wherein the end of the first support is detachably provided with a first fastener, the end of the second support is detachably provided with a second fastener, a contact of the first support with the first fastener is provided with a first seal, and a contact of the second support with the second fastener is provided with a second seal.

4. A maintenance system for an underwater pipeline according to claim 3, wherein a seal groove is formed in each of the first seal baffle and the second seal baffle on a side away from the closed space, and the first seal and the second seal are both disposed in the seal groove.

5. The system of claim 4, wherein the first and second supports are each provided with a plurality of screw holes, the first and second supports are connected by screws, the first fastener is connected to the first support by screws, and the second fastener is connected to the second support by screws.

6. The maintenance system of an underwater pipeline according to claim 5, wherein a glue filling groove is formed in one end of the closed space, which is close to the first sealing baffle plate and/or the second sealing baffle plate, the glue filling opening is communicated with the glue filling groove, and the water outlet is communicated with one end of the closed space, which is far away from the glue filling opening.

7. The subsea pipeline maintenance system according to claim 6, wherein the cleaning device comprises a rust removal assembly for removing impurities from the pipeline surface and a polishing assembly for polishing the pipeline surface smooth.

8. The system of claim 7, wherein the glue spraying device comprises a device body and a glue extruding assembly, the device body is provided with a glue outlet, a containing cavity for containing the plugging glue is arranged in the device body, and the glue extruding assembly is arranged on the device body and used for extruding the plugging glue from the glue outlet.

9. The underwater pipeline maintenance system of claim 8, wherein the paste ejection assembly comprises a screw, a piston member and a turntable, the piston member is disposed in the accommodating chamber, a threaded hole is provided in the device body, the screw is connected with the device body through the threaded hole, a first end of the screw is connected with the piston member, and a second end of the screw is connected with the turntable.

10. A method of maintaining an underwater pipeline, wherein the method is applied to the maintenance system of an underwater pipeline as claimed in claim 9, the method comprising:

acquiring a region to be maintained in a pipeline;

controlling the cleaning device to clean the area to be maintained;