Submarine pipeline expansion bend flange gasket taking-out device

Abstract

The invention discloses a submarine pipeline expansion bend flange gasket taking-out device which comprises a first transmission mechanism and a second transmission mechanism, the second transmission mechanism is connected to the first transmission mechanism, and a holding handle is arranged at one end of the first transmission mechanism. A first clamping block is arranged at the end, away from the holding handle, of the first transmission mechanism, a rotating hand wheel is connected to one end of the second transmission mechanism, a second clamping block and a third clamping block are arranged at the end, away from the rotating hand wheel, of the second rotating mechanism, and the rotating hand wheel is rotated to tighten a locking handle arranged on the second transmission mechanism. And the clamping handle is shaken so that the gasket connected with the flange can be clamped among the first clamping block, the second clamping block and the third clamping block, and the clamping handle is shaken so that the gasket can be separated from the flange. According to the submarine pipeline expansion bend flange gasket taking-out device, the gasket can be taken out easily and rapidly in the state that the operation space is narrow, the gasket cannot be damaged, and construction is safe and reliable.

Description

Technical Field

[0001] The invention belongs to the field of offshore petroleum engineering, and in particular relates to a device for removing a gasket of an expansion bend flange of a submarine pipeline. Background Art

[0002] During the installation and maintenance of submarine pipeline expansion bends, due to the installation of flange gaskets, it is often necessary to adjust the expansion bend angle multiple times to meet the installation quality requirements. Affected by the seabed operating environment, the gap between the two flange surfaces is often small.

[0003] The gap between the two flange surfaces is small or the gasket fits tightly against the flange mounting groove, making it difficult for diving workers to remove the gasket. If the traditional method of knocking the gasket is used, it is particularly easy for the gasket to be damaged after removal, affecting the installation quality, safety, progress and other issues.

[0004] Therefore, it is urgent to design a device for removing the gasket of the expansion bend flange of a submarine pipeline to solve the problem of removing the gasket on the expansion bend flange mentioned above. Summary of the invention

[0005] In order to solve the technical problem mentioned in the background technology that the gap between the two flange surfaces is small or the gasket is tightly fitted to the flange mounting groove, it is difficult for diving workers to remove the gasket, and the method of knocking the gasket is particularly prone to damage to the gasket after removal, affecting the installation quality, safety, progress and other issues, a submarine pipeline expansion bend flange gasket removal device is provided to solve the problem of removing the gasket on the expansion bend flange.

[0006] To achieve the above-mentioned purpose, the specific technical scheme of the submarine pipeline expansion bend flange gasket removal device of the present invention is as follows: A device for removing gaskets from expansion bend flanges of submarine pipelines comprises a first transmission mechanism and a second transmission mechanism, wherein the second transmission mechanism is connected to the first transmission mechanism, a gripping handle is provided at one end of the first transmission mechanism, a first clamping block is provided at the end of the first transmission mechanism away from the gripping handle, a rotating hand wheel is connected at one end of the second transmission mechanism, a second clamping block and a third clamping block are provided at the end of the second rotating mechanism away from the rotating hand wheel, the rotating hand wheel is rotated, and the locking handle provided on the second transmission mechanism is tightened so that the gasket connected to the flange is clamped between the first clamping block, the second clamping block and the third clamping block, and the gripping handle is shaken to separate the gasket from the flange.

[0007] Furthermore, a locking handle is connected to a side of the second transmission mechanism close to the rotating hand wheel, and the locking handle is tightened to enable the second clamping block and the third clamping block to clamp the gasket.

[0008] Furthermore, a second transmission mechanism is connected to the lower side of the first transmission mechanism, and the second transmission mechanism slides relative to the first transmission mechanism.

[0009] Furthermore, the second transmission mechanism includes a first sleeve and a second sleeve, the first sleeve is fixedly connected to the first transmission mechanism, and the second sleeve is slidably arranged on the first transmission mechanism.

[0010] Furthermore, a transmission rod is provided in the first sleeve, one end of the transmission rod is connected to the rotating handwheel, and the end of the transmission rod away from the rotating handwheel is connected to the second sleeve. The rotating handwheel is rotated to drive the second sleeve to slide along the length direction of the first transmission mechanism.

[0011] Furthermore, a second clamping block and a third clamping block are spaced apart from each other at one end of the second sleeve away from the first sleeve. The rotating hand wheel is rotated clockwise to drive the second clamping block and the third clamping block away from the first clamping block so that the gasket is placed between the first clamping block, the second clamping block and the third clamping block.

[0012] Furthermore, the first transmission mechanism is fixedly connected to the first clamping block at one end away from the gripping handle, and the rotating hand wheel is rotated counterclockwise, so that the second clamping block and the third clamping block move toward the first clamping block to clamp the gasket.

[0013] Furthermore, grooves are provided on the first clamping block, the second clamping block and the third clamping block to stably clamp the gasket.

[0014] Further, along the horizontal direction, the first clamping block is located between the second clamping block and the third clamping block.

[0015] Further, the gripping handle is shaken to drive the first transmission mechanism and the second sleeve to shake so that the gasket is separated from the flange.

[0016] The submarine pipeline expansion bend flange gasket removal device of the present invention has the following advantages: This device can solve the problem of working in a narrow space when removing the gasket of the expansion bend flange, avoid the time-consuming underwater pipe moving operation and the potential risk of pipeline damage to increase the gap between the two flanges, and at the same time ensure the reliability of gasket removal, safe and convenient operation. This application can easily and quickly remove the gasket in a narrow operating space without damaging the gasket. The construction is safe and reliable, providing protection for the installation and maintenance of the expansion bend of the submarine pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the device for removing the gasket of the expansion bend flange of a submarine pipeline according to the present invention; Figure 2 The present invention is a layout diagram of the first clamping block, the second clamping block and the third clamping block of the submarine pipeline expansion bend flange gasket removal device.

[0018] Description of the markings in the figure: 1. First transmission mechanism; 2. Second transmission mechanism; 21. First sleeve; 22. Second sleeve; 3. Grip handle; 4. Rotate hand wheel; 5. First clamping block; 6. Second clamping block; 7. Third clamping block; 8. Locking handle. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0020] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0021] Please refer to the attached Figure 1 and attached Figure 2 The invention describes a device for removing a gasket of a submarine pipeline expansion bend flange.

[0022] like Figure 1 As shown, the submarine pipeline expansion bend flange gasket removal device in the present invention includes a first transmission mechanism 1 and a second transmission mechanism 2, the second transmission mechanism 2 is connected to the first transmission mechanism 1, one end of the first transmission mechanism 1 is provided with a gripping handle 3, the first transmission mechanism 1 is provided with a first clamping block 5 at the end away from the gripping handle 3, one end of the second transmission mechanism 2 is connected with a rotating handwheel 4, and the second rotating mechanism 2 is provided with a second clamping block 6 and a third clamping block 7 at the end away from the rotating handwheel 4. The rotating handwheel 4 is rotated and the locking handle 8 provided on the second transmission mechanism 2 is tightened so that the gasket connected to the flange is clamped between the first clamping block 5, the second clamping block 6 and the third clamping block 7, and the gripping handle 3 is shaken to make the gasket detach from the flange.

[0023] This device can solve the problem of working in a narrow space when removing the gasket of the expansion bend flange, avoid the time-consuming underwater pipe moving operation and the potential risk of pipeline damage to increase the gap between the two flanges, and at the same time ensure the reliability of gasket removal, safe and convenient operation. This application can easily and quickly remove the gasket in a narrow operating space without damaging the gasket. The construction is safe and reliable, providing protection for the installation and maintenance of the expansion bend of the submarine pipeline.

[0024] Further, if Figure 1 and Figure 2As shown, the locking handle 8 is connected to the second transmission mechanism 2 near the rotating hand wheel 4, and the locking handle 8 is tightened to clamp the second clamping block 6 and the third clamping block 7 to clamp the gasket; the second transmission mechanism 2 is connected to the lower side of the first transmission mechanism 1, and the second transmission mechanism 2 slides relative to the first transmission mechanism 1; the second transmission mechanism 2 includes a first sleeve 21 and a second sleeve 22, the first sleeve 21 is fixedly connected to the first transmission mechanism 1, and the second sleeve 22 is slidably arranged on the first transmission mechanism 1.

[0025] In this embodiment, preferably, the locking handle 8 is connected to the side of the second transmission mechanism 2 close to the rotating handwheel 4. When the locking handle 3 is tightened, the second clamping block 6 and the third clamping block 7 realize the clamping gasket. The second transmission mechanism 2 is connected to the lower side of the first transmission mechanism 1, and the second transmission mechanism 2 slides along the length direction of the first transmission mechanism 1.

[0026] The second transmission mechanism 2 is composed of a first sleeve 21 and a second sleeve 22. The first sleeve 21 is fixedly connected to the lower side of the first transmission mechanism 1, and the second sleeve 22 is slidably connected to the first transmission mechanism 1.

[0027] Further, if Figure 1 As shown, a transmission rod is provided in the first sleeve 21, one end of the transmission rod is connected to the rotating handwheel 4, and the end of the transmission rod away from the rotating handwheel 4 is connected to the second sleeve 22, and the rotating handwheel 4 is rotated to drive the second sleeve 22 to slide along the length direction of the first transmission mechanism 1; the second sleeve 22 is connected to the end away from the first sleeve 21 with a second clamping block 6 and a third clamping block 7 at intervals, and the rotating handwheel is rotated clockwise to drive the second clamping block 6 and the third clamping block 7 away from the first clamping block 5, so that the gasket is placed between the first clamping block 5, the second clamping block 6 and the third clamping block 7.

[0028] The first transmission mechanism 1 is fixedly connected to the first clamping block 5 at one end away from the gripping handle 3. When the rotating hand wheel 4 is rotated counterclockwise, the second clamping block 6 and the third clamping block 7 move toward the first clamping block 5 to clamp the gasket.

[0029] In this embodiment, preferably, a transmission rod is provided in the first sleeve 21, one end of the transmission rod is hinged to the rotating handwheel 4, and the end of the transmission rod away from the rotating handwheel 4 is connected to the second sleeve 22. When the rotating handwheel 4 is rotated, the second sleeve 22 is driven to slide along the length direction of the first transmission mechanism 1.

[0030] The second sleeve 22 is spaced apart from the first sleeve 21 at one end thereof and is connected with a second clamping block 6 and a third clamping block 7. When the rotating hand wheel 4 is rotated clockwise, the second clamping block 6 and the third clamping block 7 are driven away from the first clamping block 5 so that the gasket can be sufficiently placed between the first clamping block 5, the second clamping block 6 and the third clamping block 7.

[0031] Preferably, the first transmission mechanism 1 is fixedly connected to the first clamping block 5 at one end away from the gripping handle 3. When the rotating hand wheel 4 is rotated counterclockwise, the second clamping block 6 and the third clamping block 7 move toward the first clamping block 5, thereby clamping the gasket.

[0032] Further, if Figure 1 As shown, the first clamping block 5, the second clamping block 6 and the third clamping block 7 are all provided with grooves to stably clamp the gasket; in the horizontal direction, the first clamping block 5 is located between the second clamping block 6 and the third clamping block 7; shake the gripping handle to drive the first transmission mechanism 1 and the second sleeve 22 to shake so that the gasket is separated from the flange.

[0033] In this embodiment, preferably, grooves are provided on the first clamping block 5, the second clamping block 6 and the third clamping block 7, and the grooves match the shape of the gasket, so that the gasket is stably clamped between the first clamping block 5, the second clamping block 6 and the third clamping block 7; and in the horizontal direction, the first clamping block 5 is located between the second clamping block 6 and the third clamping block 7, and the first transmission mechanism 1 and the second sleeve 22 are driven to shake by shaking the gripping handle to achieve the gasket being separated from the flange.

[0034] The working steps of the submarine pipeline expansion bend flange gasket removal device in this application are as follows: Turn the rotating hand wheel 4 clockwise to adjust the distance between the first clamping block 5, the second clamping block 6 and the third clamping block 7 so that the clamping gap is larger than the width of the gasket. Hold the gripping handle 3 and approach the gasket between the flanges. First, make the second clamping block 6 and the third clamping block 7 penetrate into the gap between the two flanges and place them on the inside of the gasket. By holding the gripping handle 3, press the first clamping block 5 against the outside of the gasket. Then turn the rotating hand wheel 4 counterclockwise to move the second clamping block 6 and the third clamping block 7 toward the first clamping block 5, thereby clamping the gasket. Then tighten the locking handle 8 and slowly shake the gripping handle 3 to separate the gasket from the flange to complete the gasket removal operation.

[0035] The device for removing the gasket of the expansion bend flange of the submarine pipeline solves the problem of working in a narrow space when removing the gasket of the expansion bend flange through this device, avoiding the time-consuming underwater pipe moving operation and the potential risk of pipeline damage to increase the gap between the two flanges, while ensuring the reliability of gasket removal, safe and convenient operation. This application can easily and quickly remove the gasket in a narrow operating space without damaging the gasket. The construction is safe and reliable, providing guarantee for the installation and maintenance construction of the expansion bend of the submarine pipeline.

[0036] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A device for removing the gasket of a submarine pipeline expansion bend flange, characterized in that: The invention comprises a first transmission mechanism and a second transmission mechanism, wherein the second transmission mechanism is connected to the first transmission mechanism, a gripping handle is provided at one end of the first transmission mechanism, a first clamping block is provided at the end of the first transmission mechanism away from the gripping handle, a rotating hand wheel is connected at one end of the second transmission mechanism, a second clamping block and a third clamping block are provided at the end of the second rotating mechanism away from the rotating hand wheel, the rotating hand wheel is rotated and the locking handle provided on the second transmission mechanism is tightened so that a gasket connected to the flange is clamped between the first clamping block, the second clamping block and the third clamping block, and the gripping handle is shaken to make the gasket detach from the flange.

2. The device for removing the gasket of the expansion bend flange of a submarine pipeline according to claim 1 is characterized in that: The locking handle is connected to the second transmission mechanism at one side close to the rotating hand wheel, and the locking handle is tightened to enable the second clamping block and the third clamping block to clamp the washer.

3. The device for removing the gasket of the expansion bend flange of a submarine pipeline according to claim 1 is characterized in that: The lower side of the first transmission mechanism is connected with a second transmission mechanism, and the second transmission mechanism slides relative to the first transmission mechanism.

4. The device for removing the gasket of the expansion bend flange of a submarine pipeline according to claim 1 is characterized in that: The second transmission mechanism comprises a first sleeve and a second sleeve, the first sleeve is fixedly connected to the first transmission mechanism, and the second sleeve is slidably arranged on the first transmission mechanism.

5. The device for removing the gasket of the expansion bend flange of a submarine pipeline according to claim 4 is characterized in that: A transmission rod is arranged in the first sleeve, one end of the transmission rod is connected to the rotating hand wheel, and the end of the transmission rod away from the rotating hand wheel is connected to the second sleeve. The rotating hand wheel is rotated to drive the second sleeve to slide along the length direction of the first transmission mechanism.

6. The device for removing the gasket of the expansion bend flange of a submarine pipeline according to claim 5 is characterized in that: The second sleeve is connected to the second clamping block and the third clamping block at an interval at one end away from the first sleeve. The rotating hand wheel is turned clockwise to drive the second clamping block and the third clamping block away from the first clamping block so that the gasket is placed between the first clamping block, the second clamping block and the third clamping block.

7. The device for removing the gasket of the expansion bend flange of a submarine pipeline according to claim 5 is characterized in that: The first transmission mechanism is fixedly connected with a first clamping block at one end away from the gripping handle. When the rotating hand wheel is rotated counterclockwise, the second clamping block and the third clamping block move toward the first clamping block to clamp the gasket.

8. The device for removing the gasket of the expansion bend flange of a submarine pipeline according to claim 7 is characterized in that: The first clamping block, the second clamping block and the third clamping block are all provided with grooves to stably clamp the gasket.

9. The device for removing the gasket of the expansion bend flange of a submarine pipeline according to claim 8, characterized in that: In the horizontal direction, the first clamping block is located between the second clamping block and the third clamping block.

10. The device for removing the gasket of the expansion bend flange of a submarine pipeline according to claim 7, characterized in that: The gripping handle is shaken to drive the first transmission mechanism and the second sleeve to shake so that the gasket is separated from the flange.

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