Offshore platform floor drain dredging tool

By designing a drain cleaning tool for offshore platforms, and utilizing high-pressure cleaning water and gas, the problem of corrosion and blockage in offshore platform drain pipelines was solved, achieving rapid unblocking, cost reduction, and extended service life.

CN223440633UActive Publication Date: 2025-10-17ZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL CORP
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Patent Information

Application Number
CN202422570431.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-24
Publication Date
2025-10-17
Estimated Expiration
2034-10-24

AI Technical Summary

Technical Problem

Corrosion and blockage in floor drain pipelines on offshore platforms make them difficult to unclog, with high costs and poor results. Traditional tools have difficulty passing through curved sections and require cutting and welding, affecting their normal use.

Method used

A drain cleaning tool for offshore platforms was designed, comprising a delivery pipe, a connecting pipe, and a nozzle. It utilizes high-pressure cleaning water and high-pressure gas in combination, bending the pipeline, rotating the nozzle to cut the blockage, and providing power from the water spray holes to achieve rapid unblocking.

Benefits of technology

It enables rapid and effective unblocking of drain pipes on offshore platforms, reducing workload and costs, extending service life, and avoiding cutting and welding.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of pipeline dredging. An offshore platform floor drain dredging tool comprises a conveying pipe and a connecting pipe which are communicated with each other, the conveying pipe comprises a first pipe body and a second pipe body, the outer diameter of the first pipe body is larger than that of the second pipe body, a spherical body is arranged at the end, away from the first pipe body, of the second pipe body, and a through hole communicated with the second pipe body is formed in the spherical body. A spherical groove is formed in the end of the connecting pipe and located at a pipe opening, the spherical body is clamped in the spherical groove, the air conveying channels are arranged on the first pipe body in an annular array mode, the central axis of each air conveying channel is parallel to the central axis of the conveying pipe, piston rods are arranged in the air conveying channels and sleeved with springs, one ends of the springs are connected to the first pipe body, and the other ends of the springs are connected to the second pipe body. The other end of the spring is connected to the end of the connecting pipe. The offshore platform floor drain pipeline dredging device has the advantages that the offshore platform floor drain pipeline can be quickly and effectively dredged, the floor drain pipeline does not need to be cut and welded, and dredging time and dredging cost are saved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline dredging technical field, concretely relates to a sea platform floor drain dredging tool. BACKGROUND

[0002] The negative influence brought by the special environment of the sea, that is, the serious corrosion of the metal pipeline leads to the blockage of the floor drain, the traditional pipeline dredging tool or dredging method has the problems of not obvious dredging and inconvenient processing, which mainly shows the following aspects:

[0003] 1, the sea environment is special, the structure of the sea platform is all metal structure, and the corrosion condition is relatively serious, the floor drain pipeline itself can have relatively serious corrosion, in addition, the rust slag of the metal structure of the sea platform often concentrates in the floor drain pipeline, thereby causing the serious blockage of the floor drain pipeline, and too much accumulation of the rust slag can cause the difficulty in dredging;

[0004] 2, the structure space of the sea platform is limited, the floor drain pipeline often has more elbows and reducers, the traditional dredging tool is difficult to pass through these pipeline curved parts, and it is difficult to realize further cleaning, in addition, due to the environmental protection requirement of the sea, the waste liquid generated by the sea platform cannot be directly discharged into the sea, and needs to be collected and treated, therefore, most of the time, the floor drain pipeline is used to collect the waste liquid in the open discharge system, and the waste liquid often has complex impurities, which can be condensed into hard blocks similar to cement blocks in the floor drain pipeline, in view of the above situation, the floor drain pipeline needs to be cut, then dredged, and finally welded, thereby increasing the time and cost of pipeline dredging, and affecting the normal use of the floor drain pipeline. SUMMARY

[0005] The utility model discloses a sea platform floor drain dredging tool, solve the floor drain pipeline dredging difficult, dredging cost is high, the problem of poor dredging effect, improve the working efficiency of floor drain pipeline, reduce the dredging workload.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a kind of offshore platform floor drain dredging tool, including mutually communicating delivery pipe and connecting pipe, the delivery pipe includes first pipe body and second pipe body, the outer diameter of first pipe body is greater than the outer diameter of second pipe body, the second pipe body is provided with spherical body away from the one end of first pipe body, the spherical body is provided with the through hole being communicated with second pipe body, the end of connecting pipe and located at pipe orifice is provided with spherical groove, the spherical body is clamped in spherical groove, several gas passages are annular array and are arranged on the first pipe body, the central axis of gas passage is parallel with the central axis of delivery pipe, piston rod is arranged in the gas passage, the spring is sleeved on the piston rod, one end of the spring is connected on first pipe body, the other end of the spring is connected on the end of connecting pipe.

[0008] Further, the connecting pipe is provided with a spray head away from the delivery pipe.

[0009] Further, the connecting pipe is provided with a water pipe connected thereto and extending into the interior of the spray head, the spray head is rotatably arranged on the water pipe by a bearing, a clamping block is arranged on the water pipe and located in the interior of the spray head, the head of the spray head is provided with a plurality of water outlets arranged in an annular array, and the angles between the opening directions of the plurality of water outlets and the horizontal plane are sequentially increased or decreased.

[0010] Further, the outer periphery of the clamping block is provided with a sealing ring, and the sealing ring abuts against the inner wall surface of the spray head.

[0011] Further, the head of the spray head is provided in a circular arc structure.

[0012] Further, a plurality of blades are arranged on the outer surface of the spray head in an annular array, and the other ends of the plurality of blades are gathered towards the central axis of the spray head.

[0013] Further, the outer side surface of the connecting pipe is provided with a plurality of water outlets arranged in an annular array, and the angle between the outlet direction of the water outlet and the water conveying direction of the connecting pipe is greater than 90°.

[0014] Further, the end of the piston rod away from the delivery pipe is provided in a spherical shape.

[0015] Further, the end of the connecting pipe is provided with a plurality of arc-shaped grooves, and the end of the piston rod away from the delivery pipe abuts against the inner wall of the hemispherical groove.

[0016] The utility model has the beneficial effects that the offshore platform floor drain pipeline is quickly and effectively dredged, without cutting and welding the floor drain pipeline, greatly reducing the workload, saving the dredging time and cost, and prolonging the normal use period of the floor drain pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the overall schematic view of the embodiment 1 of the utility model.

[0018] Figure 2 is the structure explosion drawing of the embodiment 1 of the utility model from one angle.

[0019] Figure 3 is the structure explosion drawing of the embodiment 1 of the utility model from another angle.

[0020] Figure 4 is the schematic view of the embodiment 1 of the utility model after turning.

[0021] Figure 5 is the overall schematic view of the embodiment 2 of the utility model. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiment of the utility model will be described below with the drawings. Embodiment 1

[0023] As shown in Figure 1 , Figure 2 and Figure 3 , a sea platform floor drain dredging tool, including the conveying pipe 1 and the connecting pipe 2 of intercommunication, the conveying pipe 1 includes the first pipe body 1a and the second pipe body 1b, the outer diameter of the first pipe body 1a is greater than the outer diameter of the second pipe body 1b, the one end of the second pipe body 1b away from the first pipe body 1a is equipped with the spheroid 3, the spheroid 3 is equipped with the through hole 4 with the second pipe body 1b intercommunication, the end of the connecting pipe 2 and at the pipe orifice is equipped with the spheroidal groove 5, the spheroid 3 is clamped and is equipped in the spheroidal groove 5, a plurality of gas passages 6 are annular array and are arranged on the first pipe body 1a, the central axis of the gas passage 6 is parallel with the central axis of the conveying pipe 1, the piston rod 7 is equipped in the gas passage 6, the spring 8 is sleeved in the piston rod 7, one end of the spring 8 is connected on the first pipe body 1a, the other end of the spring 8 is connected on the end of the connecting pipe 2.

[0024] In the embodiment, first, the conveying pipe 1 is connected with high-pressure cleaning water, the high-pressure cleaning water flows through the first pipe body 1a, the second pipe body 1b, the through hole 4 of the spherical body 3, the spherical groove 5 and the connecting pipe 2 in turn, and then is sprayed outwards, and the gas conveying channel 6 of the first pipe body 1a is connected with a device pipeline capable of injecting high-pressure gas into the gas conveying channel 6; after the tool enters the floor drain pipeline, the floor drain pipeline is flushed and dredged by using the water power of the high-pressure cleaning water, when the floor drain pipeline is encountered, high-pressure gas is injected into part of the gas conveying channel 6, the piston rod 7 of the part of the gas conveying channel 6 extends outwards and presses on the connecting pipe 2, the spring 8 sleeved on the connecting pipe 2 is in an elongated state, and the other part of the piston rod 7 does not apply force to the connecting pipe 2 and is retracted into the corresponding gas conveying channel 6, the connecting pipe 2 can be turned through the spherical body 3 due to the unbalanced force, and finally the tool passes through the bend of the floor drain pipeline, after the tool completely passes through the bend of the floor drain pipeline, the injection of the high-pressure gas is stopped, the deformation of the spring 8 is restored, the connecting pipe 2 is reset, and the flushing of the floor drain pipeline is continued, so that the floor drain pipeline of the offshore platform is quickly and effectively dredged, and the floor drain pipeline does not need to be cut and welded.

[0025] It should be noted that the conveying pipe 1, the connecting pipe 2 and the spherical body 3 are all made of flexible materials, can be bent and folded at will, and will not be broken or damaged, so that the turning in the floor drain pipeline is facilitated.

[0026] The end of the connecting pipe 2 away from the conveying pipe 1 is provided with a spray head 9. The spray head 9 can further compress the high-pressure cleaning water to form a stronger impact effect, so as to dredge the blockage of the floor drain pipeline.

[0027] The connecting pipe 2 is provided with a connecting water pipe 10 which is in communication with the connecting pipe 2 and extends into the inside of the spray head 9, the spray head 9 is rotatably arranged on the connecting water pipe 10 through a bearing 11, a clamping block 12 is arranged on the connecting water pipe 10 and located in the inside of the spray head 9, the head of the spray head 9 is provided with a plurality of water outlet holes 13 which are arranged in an annular array, and the included angles between the opening directions of the plurality of water outlet holes 13 and the horizontal plane are sequentially increased or decreased. When the high-pressure cleaning water is sprayed out of each water outlet hole 13 of the spray head 9, the sprayed water flow drives the spray head 9 to rotate, at the same time, a rotating water flow is formed, and the inside of the floor drain pipeline is impacted, so that the dredging effect of the floor drain pipeline is enhanced, wherein the combination of the clamping block 12 and the bearing 11 can prevent the spray head 9 from separating from the tool.

[0028] The outer circumferential surface of the clamping block 12 is provided with a sealing ring 14 which abuts against the inner wall surface of the spray head 9. The sealing ring 14 prevents the high-pressure cleaning water from flowing out of the gap between the spray head 9 and the bearing 11, so as to avoid the reduction of the high-pressure water impact effect.

[0029] The head of the spray head 9 is arranged in a circular arc structure. After the clog in the floor drain pipeline is dispersed, the circular arc structure of the spray head 9 can make the dispersed clog flow with the water flow to the rear of the tool.

[0030] The outer side of the connecting pipe 2 is provided with a plurality of water spray holes 16 arranged in a ring array, and the included angle between the outlet direction of the water spray hole 16 and the water conveying direction of the connecting pipe 2 is greater than 90°. When the high-pressure cleaning water passes through the connecting pipe 2, the high-pressure water flow is sprayed out of the water spray hole 16, and the outlet direction of the water spray hole 16 is in the oblique rear direction of the tool travel direction, which drives the tool to move forward under the reaction force of the high-pressure water flow, providing power for the tool to move forward. No additional external force is needed to promote the tool and the water conveying pipeline to move forward and work. In addition, the high-pressure water flow sprayed out of the water spray hole 16 can also drive the clog washed down from the spray head 9 to move backward, so as to discharge the clog outside the floor drain pipeline.

[0031] The end of the piston rod 7 away from the conveying pipe 1 is arranged in a spherical shape. The end of the connecting pipe 2 is provided with a plurality of arc-shaped grooves 17, and the end of the piston rod 7 away from the conveying pipe 1 abuts against the inner wall of the arc-shaped groove 17. The spherical end surface of the piston rod 7 can make the turning of the connecting pipe 2 more smooth and stable, and the combination of the spherical end surface of the piston rod 7 and the arc-shaped groove 17 of the connecting pipe 2 can limit the contact range of the piston rod 7 and the connecting pipe 2, so that the connecting pipe 2 will not be dislocated from the piston rod 7 when turning or resetting. Example 2

[0032] As shown in Figure 4 Also includes a plurality of blades 15, one end of the plurality of blades 15 is arranged in a ring array on the outer surface of the spray head 9, and the other end of the plurality of blades 15 is gathered towards the central axis of the spray head 9. The rotating spray head 9 can drive the blades 15 to rotate, and the rotating blades 15 can effectively cut the relatively hard clog and form a better dredging effect.

Claims

1. A floor drain dredging tool for an offshore platform, comprising a delivery pipe (1) and a connecting pipe (2) interconnected with each other, characterized in that: The delivery pipe (1) comprises a first pipe body (1a) and a second pipe body (1b), the outer diameter of the first pipe body (1a) is larger than the outer diameter of the second pipe body (1b), the second pipe body (1b) is provided with a spherical body (3) at one end away from the first pipe body (1a), the spherical body (3) is provided with a through hole (4) communicating with the second pipe body (1b), the end of the connecting pipe (2) is provided with a spherical groove (5) at the pipe mouth, the spherical body (3) is clamped in the spherical groove (5), a plurality of gas delivery channels (6) are arranged in an annular array on the first pipe body (1a), the central axis of the gas delivery channel (6) is parallel to the central axis of the delivery pipe (1), a piston rod (7) is provided in the gas delivery channel (6), the piston rod (7) is provided with a spring (8), one end of the spring (8) is connected to the first pipe body (1a), and the other end of the spring (8) is connected to the end of the connecting pipe (2).

2. The offshore platform floor drain dredging tool according to claim 1, characterized in that: The end of the connecting pipe (2) away from the delivery pipe (1) is provided with a nozzle (9).

3. The offshore platform floor drain dredging tool according to claim 2, characterized in that: The connecting pipe (2) is provided with a connecting water pipe (10) which is in communication with the connecting pipe and extends to the interior of the nozzle (9). The nozzle (9) is rotatably arranged on the connecting water pipe (10) via a bearing (11). The clamping block (12) is arranged on the connecting water pipe (10) and is located inside the nozzle (9). The head of the nozzle (9) is provided with a plurality of water outlet holes (13) distributed in a circular array. The angles between the opening directions of the plurality of water outlet holes (13) and the horizontal plane are increasing or decreasing in sequence.

4. The offshore platform floor drain dredging tool according to claim 3, characterized in that: A sealing ring (14) is provided on the outer peripheral surface of the clamping block (12), and the sealing ring (14) abuts against the inner wall surface of the nozzle (9).

5. The offshore platform floor drain dredging tool according to claim 2, 3 or 4, characterized in that: The head of the nozzle (9) is configured as an arc-shaped structure.

6. The offshore platform floor drain dredging tool according to claim 5, characterized in that: It also includes a plurality of blades (15), one end of the plurality of blades (15) is arranged in a ring array on the outer surface of the nozzle (9), and the other end of the plurality of blades (15) is gathered toward the central axis of the nozzle (9).

7. The offshore platform floor drain dredging tool according to claim 6, characterized in that: The outer side surface of the connecting pipe (2) is provided with a plurality of water spray holes (16) distributed in a circular array, and the angle between the outlet direction of the water spray holes (16) and the water supply direction of the connecting pipe (2) is greater than 90°.

8. The offshore platform floor drain dredging tool according to claim 1, characterized in that: The end of the piston rod (7) away from the delivery pipe (1) is configured to be spherical.

9. The offshore platform floor drain dredging tool according to claim 8, characterized in that: The end of the connecting pipe (2) is provided with a plurality of arc-shaped grooves (17), and the end of the piston rod (7) away from the delivery pipe (1) abuts against the inner wall of the arc-shaped groove (17).