Auxiliary mechanism for offshore casing pipe installation

Abstract

The utility model discloses an auxiliary mechanism for offshore casing pipe installation, which comprises a pipe sleeve, a sealing gasket is protruded on the part of the inner wall of the pipe sleeve, which is abutted against a pipeline, the sealing gasket is provided with a flow guide groove which is aligned with the joint of the pipeline, and the flow guide groove is matched with a monitoring mechanism to monitor the leakage of a medium in the pipeline at the joint of the pipeline. According to the utility model, the sealing gasket is arranged on the inner wall of the pipe sleeve, and the diversion trench is arranged on the sealing gasket, so that the medium in the leaked pipeline at the pipeline joint is accurately collected and guided, once the pipeline leaks, the medium in the pipeline flows into the diversion trench under the guide of the sealing gasket and is in contact with the monitoring rod of the monitoring mechanism, and the sensor can quickly detect the leakage; by means of the design, the monitoring sensitivity of medium leakage in the pipeline is improved, potential safety hazards can be found in the first time, environmental pollution and resource waste caused by medium leakage in the pipeline are avoided, and the safety and stability of offshore pipeline transportation are effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to monitoring technical field especially relates to a kind of auxiliary mechanism for offshore casing installation. BACKGROUND

[0002] Directional drilling construction technology is to drill into from ground using directional drilling machine, to drill a pilot hole in seabed stratum by controlling the direction of drill bit according to the designed track, then to gradually expand the pilot hole to the diameter suitable for pipeline laying, and finally to pull back the prefabricated pipeline into place from the expanded hole to realize the laying of submarine pipeline.

[0003] When the existing monitoring device monitors the leakage of the pipe sleeve butt joint of submarine pipeline, once the medium in the pipeline leaks, the medium will usually spread rapidly, even if the monitoring device can capture and convey the leakage information in time, the staff can only know that there is leakage at the pipe sleeve connection, but it is difficult to accurately locate the leakage position.

[0004] Therefore, an auxiliary mechanism for offshore casing installation is needed to avoid the above-mentioned problems. SUMMARY

[0005] The utility model aims at: in order to solve the above-mentioned problem, and propose an auxiliary mechanism for offshore casing installation.

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

[0007] An auxiliary mechanism for offshore casing installation, comprising a pipe sleeve, a sealing gasket is protruded on the part of the inner wall of the pipe sleeve abutting with the pipeline, and a flow guide groove aligned with the connection of the pipeline is opened on the sealing gasket, and the flow guide groove cooperates with a monitoring mechanism to monitor the leakage of the medium in the pipeline at the connection of the pipeline, and the monitoring mechanism cooperates with a connecting piece to fix two pipe sleeves as a whole.

[0008] Preferably, the monitoring mechanism comprises a connecting groove opened on the flow guide groove, and the connecting groove is communicated with a screw hole, and the screw hole is connected with a monitoring rod fixed on the sensor through thread.

[0009] Preferably, the connecting piece comprises an annular groove opened on the pipe sleeve, a round sleeve is inserted into the annular groove, and a sleeve groove is opened on the round sleeve and sleeved on the sensor, two curved rods are rotatably connected on the two sides of the round sleeve, a rotating block is rotatably connected on the end of the curved rod, a screw groove is opened on the rotating block, a screw rod is slidably connected in the through hole, and the end of the screw rod is connected with the screw groove through thread.

[0010] Preferably, a spring is sleeved on the round sleeve, one end of the spring is fixedly connected with the part protruded from the end of the round sleeve, and the other end is abutted with the outer wall of the pipe sleeve.

[0011] Preferably, the outer wall of the sleeve of the pipe sleeve protrudes a sealing ring on the abutting part.

[0012] Preferably, the side wall of the monitoring rod is flush with the inner wall of the flow guide groove.

[0013] In summary, due to the adoption of the above technical scheme, the utility model has the beneficial effects that:

[0014] 1、The sealing gasket is arranged on the inner wall of the pipe sleeve, and the flow guide groove is formed on the sealing gasket, so that the precise collection and guidance of the medium in the pipeline connection leakage pipeline are realized. Once the pipeline leaks, the medium in the pipeline flows into the flow guide groove under the guidance of the sealing gasket and contacts the monitoring rod of the monitoring mechanism, so that the sensor can quickly detect and timely mark the leakage point. This design not only improves the monitoring sensitivity of the medium leakage in the pipeline, but also discovers potential safety hazards in the first time, avoids environmental pollution and resource waste caused by the leakage of the medium in the pipeline, and effectively guarantees the safety and stability of the offshore pipeline transportation.

[0015] 2、The annular groove, the sleeve, the bent rod, the rotating block and the screw rod and other components are cooperated, so that the quick and stable connection of the two pipe sleeves is realized. During the installation process, the staff only needs to simply operate and assemble the components in sequence, so that the fixation of the pipe sleeve is completed. Compared with the traditional connection mode, the installation time is greatly saved, and the work efficiency is improved. At the same time, the sealing performance of the sealing ring between the sleeve and the pipe sleeve is further enhanced, the influence of external factors on the pipeline connection is prevented, and the reliability and durability of the whole offshore sleeve installation structure are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 Fig. 1 shows a schematic diagram of the overall structure of the sleeve according to an embodiment of the utility model;

[0017] Fig. 2 Fig. 2 shows a schematic diagram of the structure of each part of the sleeve according to an embodiment of the utility model;

[0018] Fig. 3 Fig. 3 shows a schematic diagram of the structure of one side of the sleeve according to an embodiment of the utility model.

[0019] LEGEND:

[0020] 1, pipe sleeve; 2, sealing gasket; 3, flow guide groove; 4, connecting groove; 5, screw hole; 6, annular groove; 7, sensor; 8, monitoring rod; 9, through hole; 10, screw rod; 11, sleeve; 12, sleeve groove; 13, spring; 14, bent rod; 15, rotating block; 16, screw groove. DETAILED DESCRIPTION

[0021] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Embodiment one

[0022] The present application provides a technical solution, please refer to Figs. 1-3 :

[0023] The auxiliary mechanism for offshore casing installation comprises a pipe sleeve 1, a sealing gasket 2 protruding from the inner wall of the pipe sleeve 1 and abutting against the pipeline, and a flow guide groove 3 aligned with the connection of the pipeline and formed in the sealing gasket 2. The flow guide groove 3 cooperates with a monitoring mechanism to monitor the leakage of the medium in the pipeline at the connection of the pipeline. The monitoring mechanism cooperates with a connecting piece to fix two pipe sleeves 1 into one. Under the action of the sealing gasket 2, the medium in the pipeline leaked at the connection of the pipeline can flow into the flow guide groove 3. Embodiment two

[0024] The technical solution is basically the same as that of embodiment one, and the difference is that, as shown in Fig. 3 , the monitoring mechanism comprises a connecting groove 4 formed in the flow guide groove 3, the connecting groove 4 is in communication with a screw hole 5, and the monitoring rod 8 fixed on the sensor 7 is connected with the screw hole 5 through a thread. The side wall of the monitoring rod 8 is flush with the inner wall of the flow guide groove 3, so that the medium in the pipeline in the flow guide groove 3 can flow along the flow guide groove 3 and contact the monitoring rod 8 at the connecting groove 4. Once the monitoring rod 8 contacts the medium in the pipeline, it can be detected by the sensor 7, so as to mark the connection of the pipeline as a leakage point of the medium in the pipeline, which is convenient for the staff to maintain and process. The sensor 7 for monitoring the leakage of the medium in the pipeline is a direct reference to the prior art, and will not be described here. Embodiment three

[0025] The technical solution is basically the same as that of embodiment one, and the difference is that, as shown in Fig. 3As shown, the connecting piece comprises an annular groove 6 formed on the pipe sleeve 1, a round sleeve 11 protruding into the annular groove 6, a sleeve groove 12 formed on the round sleeve 11 and sleeving the sensor 7, a bent rod 14 rotatably connected to the two sides of the round sleeve 11, a rotating block 15 rotatably connected to the end of the bent rod 14, a screw groove 16 formed on the rotating block 15, a screw rod 10 slidably connected to the through hole 9, and the end of the screw rod 10 being threadedly connected with the screw groove 16. The round sleeve 11 is sleeved with a spring 13, one end of the spring 13 being fixedly connected with the protruding part of the end of the round sleeve 11, and the other end being abutted against the outer wall of the pipe sleeve 1. The outer wall of the pipe sleeve 1 of the round sleeve 11 protrudes a sealing ring. Under the action of the screw rod 10, the two pipe sleeves 1 can be fixed as a whole, and the round sleeve 11 is also fixed with the pipe sleeve 1, which is more convenient and fast.

[0026] In summary, after the pipeline connection is completed, the two pipe sleeves 1 are sleeved on the connection of the pipeline, and then the monitoring rod 8 at the end of the sensor 7 is threadedly connected with the screw hole 5 formed on the pipe sleeve 1. The screw rod 10 is slidably connected with the through hole 9 formed on the two pipe sleeves 1.

[0027] Then, the sleeve groove 12 of the round sleeve 11 is sleeved on the sensor 7, the bent rod 14 rotatably connected to the round sleeve 11 is rotated until the screw groove 16 on the rotating block 15 at the end of the bent rod 14 is aligned with the screw rod 10, the rotating block 15 is rotated until the rotating block 15 is threadedly connected with the screw rod 10, until the round sleeve 11 is abutted against the outer wall of the pipe sleeve 1, and at this time, the two pipe sleeves 1 are also abutted against each other, so that the two pipe sleeves 1 close the connection of the pipeline. Once the medium in the pipeline at the pipeline connection leaks, the medium in the pipeline in the flow guide groove 3 can flow along the flow guide groove 3 and contact the monitoring rod 8 at the connecting groove 4, and once the monitoring rod 8 contacts the medium in the pipeline, it can be detected by the sensor 7, so that the pipeline connection is marked as a leakage point of the medium in the pipeline, which is convenient for the staff to maintain and handle.

[0028] The above description of the embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An auxiliary mechanism for offshore casing installation, comprising a casing (1), characterized in that, A sealing gasket (2) protrudes from the inner wall of the sleeve (1) where it abuts the pipe, and a guide groove (3) aligned with the pipe connection is provided on the sealing gasket (2). The guide groove (3) cooperates with the monitoring mechanism to monitor the leakage of the medium inside the pipe at the pipe connection. The monitoring mechanism cooperates with the connector to fix the two sleeves (1) into one piece.

2. The auxiliary mechanism for offshore casing installation according to claim 1, characterized in that, The monitoring mechanism includes a connecting groove (4) on the guide groove (3), and the connecting groove (4) is connected to the screw hole (5). The screw hole (5) is connected to the monitoring rod (8) fixed on the sensor (7) by a thread.

3. The auxiliary mechanism for offshore casing installation according to claim 1, characterized in that, The connector includes an annular groove (6) on the sleeve (1), a round sleeve (11) extending into the annular groove (6), and a sleeve groove (12) on the round sleeve (11) for fitting onto the sensor (7). Both sides of the round sleeve (11) are rotatably connected to bent rods (14), and the ends of the bent rods (14) are rotatably connected to rotating blocks (15). The rotating blocks (15) are provided with threaded grooves (16), and a screw (10) is slidably connected to the through hole (9). The end of the screw (10) is connected to the threaded groove (16) by a thread.

4. The auxiliary mechanism for offshore casing installation according to claim 3, characterized in that, A spring (13) is fitted on the sleeve (11), and one end of the spring (13) is fixedly connected to the protruding part of the end of the sleeve (11), while the other end abuts against the outer wall of the sleeve (1).

5. The auxiliary mechanism for offshore casing installation according to claim 3, characterized in that, A sealing ring protrudes from the outer wall of the sleeve (1) of the circular sleeve (11) at the part that abuts against it.

6. The auxiliary mechanism for offshore casing installation according to claim 2, characterized in that, The side wall of the monitoring rod (8) is flush with the inner wall of the guide groove (3).

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