Pneumatic tire union sealing type telescopic vertical pipe assembly

Abstract

The utility model relates to the technical field of offshore oil exploitation, in particular to a pneumatic tire union sealing type telescopic vertical pipe assembly. Comprising a lower pipe, a lower flange is fixedly sealed at the lower end of the lower pipe, a lower pneumatic tire union is fixed at the upper end of the lower pipe, an upper pipe is arranged in the lower pipe in a sliding mode, the upper pipe penetrates through the lower pneumatic tire union and the upper flange, an upper pneumatic tire union is fixed at the upper end of the upper flange, and an air tap of the upper pipe penetrating through the upper pneumatic tire union and the lower pneumatic tire union is fixedly communicated with a lower connector. A support is fixed to the outer side of the lower pipe on the lower side of the lower connector, a sliding block is slidably arranged on the support in the vertical direction, a rope wheel is rotatably arranged on the sliding block, an upper connector is fixed to the upper flange, the upper end of the air rope is fixedly communicated with the upper connector, and the lower end of the air rope is fixedly communicated with the lower connector after bypassing the lower end of the rope wheel. The height of the lifting block on the threaded rod can be adjusted by rotating the threaded rod, the lower pipe can move downwards, and then the overall length of the pneumatic tire union sealing type telescopic vertical pipe assembly can be adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of marine oil exploitation technical field, specifically to a kind of gas tire by seal type telescopic riser assembly. BACKGROUND

[0002] At present, marine oil drilling platform telescopic riser is generally in the form of upper and lower flange connection, and the existing marine oil drilling platform telescopic riser installation procedure is complicated, which restricts the operation efficiency. Before installation of the original telescopic riser, the size needs to be measured, the locking flange is fastened, the upper and lower short sections are connected by the chain at both ends of the telescopic riser, and then installed in place. According to the on-site operation condition, if the length of the telescopic riser is not suitable, fine adjustment needs to be made: the connecting flange needs to be opened, the chain needs to be loosened, the lower short section needs to be placed against the blowout preventer, the flange bolts of the blowout preventer and the lower short section need to be connected, and then the middle connecting flange is fastened. The traditional telescopic riser system needs about 9 hours to disassemble and assemble once, which is much longer than the designed period, resulting in the impact on the on-site operation progress.

[0003] The patent document with publication number CN203188926U discloses a gas tire by seal type telescopic riser assembly, the telescopic riser adopts a gas tire by seal type structure, four steel wires are used to connect the upper short section, the middle short section and the lower short section of the telescopic riser, and after overall installation, the length of the telescopic riser does not need to be adjusted again. After the flange bolts of the blowout preventer and the lower short section are connected, the gas cylinder is directly used to inflate the gas tire, the connecting bolts between the upper short section of the telescopic riser and the transition flange are reduced to 12, the workload is reduced, the installation procedure is simplified, and the operation efficiency can be greatly improved. In addition, when the gas tire by is inflated, the operator can go up the ladder steps on the lower short section to connect the inflation port, and then take off the inflation pipeline along the ladder steps after inflation is completed, so that the safety hazard of high-altitude operation by using a safety belt is avoided. The gas tire by seal type structure changes from rigid seal to flexible seal, and good sealing effect can be ensured without adding sealing grease at the connecting position. However, the operator needs to go down to the inflation port of the lower short section through the ladder steps on the lower short section to inflate and deflate the gas tire by during the installation process of the telescopic riser and the wellhead displacement process, which is inconvenient to use. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a telescopic riser assembly which is convenient to inflate and deflate the gas tire by below and convenient to adjust the length.

[0005] In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

[0006] The utility model provides a kind of air tire is sealed telescopic riser assembly, including lower pipe, lower pipe lower end fixed sealing lower flange, lower pipe upper end is fixed with lower air tire, upper pipe is slidably arranged in lower pipe, upper pipe penetrates lower air tire, upper pipe penetrates upper flange, upper flange upper end is fixed with upper air tire, upper pipe penetrates upper air tire, the air tap of lower air tire is fixedly communicated with lower connector, the outside of lower pipe is fixed with support on the downside of lower connector, sliding block is slidably arranged in the vertical direction of support, rope wheel is rotatably arranged on sliding block, upper connector is fixed on upper flange, valve is installed on upper connector, air rope upper end is fixedly communicated with upper connector, air rope lower end is fixedly communicated with lower connector after passing through rope wheel lower end.

[0007] Specifically, the shell of the lower air tire is fixedly and sealingly connected with the upper end of the lower pipe, and the air tire in the lower air tire is in sliding and sealing contact with the upper pipe.

[0008] Specifically, the shell of the upper air tire is fixedly and sealingly connected with the upper flange, and the air tire in the upper air tire is in sliding and sealing contact with the upper pipe.

[0009] Specifically, the support is inverted U-shaped, and the sliding block is slidably connected with the vertical part of the support.

[0010] Specifically, the support is inverted U-shaped, and the sliding block is slidably connected with the vertical part of the support.

[0011] Specifically, the upper end of the upper pipe is fixed with a top ring, a plurality of support rods are fixed to the lower end of the top ring, and the lower ends of the support rods abut against the upper end of the upper flange.

[0012] Specifically, the upper flange is rotatably connected with a vertical screw rod on the upper side, the lower end of the upper flange on one side is fixed with a light rod, the light rod is parallel to the screw rod, a lifting block is threadedly connected to the screw rod, the light rod is slidably connected with the lifting block, and the lifting block is connected with the lower pipe by a pull rope.

[0013] Specifically, the lower end of the light rod is fixed with a lower plate, and the lower end of the screw rod is rotatably connected with the lower plate.

[0014] Specifically, the lower pipe is fixed with a fixed block, and the pull rope is fixedly connected with the fixed block.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1. By rotating the screw rod, the height of the lifting block on the screw rod can be adjusted. When the lifting block moves up and down on the screw rod, the lower pipe can move downward under the action of gravity, thereby adjusting the overall length of the air tire sealing telescopic riser assembly.

[0017] 2. By the upper connector, the air rope, and the lower connector, the lower air tire can be inflated and deflated, and the staff does not need to move to the lower air tire to inflate and deflate it. The air tire sealing telescopic riser assembly is convenient to use.

[0018] 3. Under the gravity of the slider, support plate and rope wheel, the air rope can be tightened, which can prevent the air rope from swaying randomly and improve the stability of the air rope. When the lower tube goes down, the rope wheel, support plate and slider go up on the support. After the length of the sealed telescopic riser assembly of this air tire is increased, the air rope is kept taut and the stability of the air rope is good. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the sealed telescopic riser assembly of the pneumatic tire.

[0020] Figure 2 for Figure 1 A magnified view of region A in the middle.

[0021] Figure 3 This is a front view of the inflatable tube retractable riser assembly.

[0022] Figure 4 for Figure 3 Enlarged view of region B in the middle.

[0023] The components in the attached diagram are named as follows: 1. Lower tube, 2. Upper tube, 3. Lower air tire union, 4. Rope pulley, 5. Upper flange, 6. Lower flange, 7. Upper air tire union, 8. Top ring, 9. Support rod, 10. Screw, 11. Lifting block, 12. Smooth rod, 13. Lower plate, 14. Pull rope, 15. Fixing block, 16. Upper connector, 17. Lower connector, 18. Air rope, 19. Bracket, 20. Slider, 21. Support plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1: Refer to Figures 1-4 As shown, a pneumatic tire union-sealed telescopic riser assembly includes a lower pipe 1, with a lower flange 6 fixedly sealed at the lower end of the lower pipe 1. A lower pneumatic tire union 3 is fixedly fixed at the upper end of the lower pipe 1, and an upper pipe 2 is slidably disposed inside the lower pipe 1, passing through the lower pneumatic tire union 3. Specifically, the shell of the lower pneumatic tire union 3 is fixedly and sealedly connected to the upper end of the lower pipe 1, and the pneumatic tire inside the lower pneumatic tire union 3 is in sliding and sealed contact with the upper pipe 2.

[0026] The upper pipe 2 passes through the upper flange 5, and the upper flange 5 is fixed with an upper air-filled joint 7. The upper pipe 2 passes through the upper air-filled joint 7. Specifically, the shell of the upper air-filled joint 7 is fixedly and sealed to the upper flange 5, and the air-filled joint 7 is in sliding and sealed contact with the upper pipe 2.

[0027] The lower air tire is fixedly communicated with the air nozzle of the lower air tire by the lower connector 17, the lower pipe 1 outside of the lower side of the lower connector 17 is fixedly provided with a support 19, and the support 19 is slidably provided with a sliding block 20 in the vertical direction. Specifically, the support 19 is in the shape of an inverted U, and the sliding block 20 is slidably connected with the vertical part of the support 19. A rope wheel 4 is rotatably arranged on the sliding block 20. Specifically, a support plate 21 is fixedly arranged on the sliding block 20, and the rope wheel 4 is rotatably arranged on the support plate 21. An upper connector 16 is fixedly arranged on the upper flange 5, and a valve is arranged on the upper connector 16. The upper end of the air rope 18 is fixedly communicated with the upper connector 16, and the lower end of the air rope 18 is fixedly communicated with the lower connector 17 after passing through the lower end of the rope wheel 4.

[0028] The upper end of the upper pipe 2 is fixedly provided with a top ring 8, the lower end of the top ring 8 is fixedly provided with a plurality of supporting rods 9, and the lower end of the supporting rod 9 abuts against the upper end of the upper flange 5. After the upper flange 5 is connected with the wellhead of the drilling platform, the cooperation of the supporting rod 9 and the top ring 8 can support the upper pipe 2.

[0029] During installation, the distance between the drilling platform surface and the upper end surface of the annular blowout preventer of the wellhead is measured, the screw rod 10 is rotated to adjust the overall length of the air tire by the lower air tire sealing type telescopic stand pipe assembly. The air tire by the lower air tire sealing type telescopic stand pipe assembly is placed on the drilling platform surface by a crane. The air tire by the lower air tire sealing type telescopic stand pipe assembly is lifted by a traveling block hook, and then placed on the wellhead of the drilling platform. The upper flange 5 is connected with the wellhead of the drilling platform, and the lower flange 6 is connected with the annular blowout preventer. Then, the air tire of the upper air tire by the lower air tire 7 is inflated. The air tire of the lower air tire by the lower air tire 3 is inflated through the upper connector 16, the air rope 18 and the lower connector 17. After the air tire of the lower air tire by the lower air tire 3 is inflated, the valve on the upper connector 16 is closed.

[0030] The air tire of the lower air tire by the lower air tire 3 can be inflated and deflated through the upper connector 16, the air rope 18 and the lower connector 17. The staff does not need to move to the lower air tire by the lower air tire 3 to inflate and deflate it, and the lower air tire by the lower air tire 3 is convenient to inflate and deflate.

[0031] The air rope 18 can be tightened under the gravity of the sliding block 20, the support plate 21 and the rope wheel 4, the air rope 18 can be prevented from shaking randomly, the stability of the air rope 18 can be improved, the rope wheel 4, the support plate 21 and the sliding block 20 ascend on the support 19 when the lower pipe 1 descends, the air rope 18 remains in a tightened state after the overall length of the air tire by the lower air tire sealing type telescopic stand pipe assembly increases, the stability of the air rope 18 is good, and the air rope 18 is prevented from being loose and knotted when the overall length of the air tire by the lower air tire sealing type telescopic stand pipe assembly is small.

[0032] In the embodiment one, the air rope 18 is fixedly communicated with the upper connector 16 and the lower connector 17. Figures 1-4As shown, the upper flange 5 is rotationally connected with a vertical screw rod 10, the upper flange 5 lower end of one side of the screw rod 10 is fixed with a light pole 12, the light pole 12 is parallel with the screw rod 10, the screw rod 10 is threadedly connected with a lifting block 11, the light pole 12 is slidingly connected with the lifting block 11, and the lifting block 11 is connected with the lower pipe 1 through a pull rope 14. Specifically, the light pole 12 lower end is fixed with a lower plate 13, and the screw rod 10 lower end is rotationally connected with the lower plate 13. The lower pipe 1 is fixed with a fixed block 15, and the pull rope 14 is fixedly connected with the fixed block 15.

[0033] By rotating the screw rod 10, the height of the lifting block 11 on the screw rod 10 can be adjusted. When the lifting block 11 moves up and down on the screw rod 10, under the gravity of the lower pipe 1, the lower pipe 1 can move downward, thereby the overall length of the gas tire sealed telescopic stand pipe assembly can be adjusted. The overall length of the gas tire sealed telescopic stand pipe assembly can be conveniently controlled.

[0034] The above only describes preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gas-tight retractable riser assembly with a sealed joint, comprising a lower pipe (1), a lower flange (6) fixedly sealed at the lower end of the lower pipe (1), a lower gas-tight joint (3) fixedly fixed at the upper end of the lower pipe (1), an upper pipe (2) slidably disposed inside the lower pipe (1), the upper pipe (2) passing through the lower gas-tight joint (3), the upper pipe (2) passing through the upper flange (5), an upper gas-tight joint (7) fixedly fixed at the upper end of the upper flange (5), and the upper pipe (2) passing through the upper gas-tight joint (7), characterized in that, The lower air tire is fixedly communicated with the lower connector (17) through the air nozzle of the lower air tire by nine (3), the lower pipe (1) outside the lower side of the lower connector (17) is fixedly provided with a support (19), the vertical direction of the support (19) is slidably provided with a sliding block (20), the rope wheel (4) is rotatably arranged on the sliding block (20), the upper flange (5) is fixedly provided with an upper connector (16), the valve is installed on the upper connector (16), the upper end of the air rope (18) is fixedly communicated with the upper connector (16), the lower end of the air rope (18) is fixedly communicated with the lower connector (17) after winding around the lower end of the rope wheel (4).

2. A sealed telescoping riser assembly according to claim 1, wherein, The lower air tire is fixedly and sealingly connected with the lower pipe (1) through the shell of the lower air tire by nine (3), and the air tire in the lower air tire by nine (3) is in sliding sealing contact with the upper pipe (2).

3. The sealed telescoping riser assembly of claim 1, wherein, The upper air tire is fixedly and sealingly connected with the upper flange (5) through the shell of the upper air tire by seven (7), and the air tire in the upper air tire by seven (7) is in sliding sealing contact with the upper pipe (2).

4. The sealed telescoping riser assembly of claim 1, wherein, The support (19) is inverted U-shaped, and the sliding block (20) is slidably connected with the vertical part of the support (19).

5. The sealed telescoping riser assembly of claim 1, wherein, The sliding block (20) is fixedly provided with a support plate (21), and the rope wheel (4) is rotatably arranged on the support plate (21).

6. A sealed telescoping riser assembly according to claim 1, wherein, The upper pipe (2) is fixedly provided with a top ring (8) at the upper end, and a plurality of support rods (9) are fixedly arranged at the lower end of the top ring (8), and the lower end of the support rod (9) abuts against the upper end of the upper flange (5).

7. A sealed telescoping riser assembly according to claim 1, wherein, The upper flange (5) is rotatably connected with a vertical screw rod (10), the lower end of the upper flange (5) on one side of the screw rod (10) is fixedly provided with a light rod (12), the light rod (12) is parallel to the screw rod (10), the screw rod (10) is threadedly connected with a lifting block (11), the light rod (12) is slidably connected with the lifting block (11), and the lifting block (11) is connected with the lower pipe (1) through a pull rope (14).

8. A sealed telescoping riser assembly according to claim 7, wherein, The lower end of the light rod (12) is fixedly provided with a lower plate (13), and the lower end of the screw rod (10) is rotatably connected with the lower plate (13).

9. The sealed telescoping riser assembly of claim 7, wherein, The lower pipe (1) is fixedly provided with a fixed block (15), and the pull rope (14) is fixedly connected with the fixed block (15). The lower pipe (1) is fixedly provided with a fixed block (15), and the pull rope (14) is fixedly connected with the fixed block (15).

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