Blowout preventer gate hoisting device

Abstract

This utility model discloses a blowout preventer gate hoisting device, relating to the technical field of blowout preventer gate assembly and disassembly. This utility model aims to solve the problems of time-consuming and labor-intensive gate installation processes, as well as high safety concerns. The utility model includes a hoisting fixture base, which is detachably connected to the blowout preventer body. A main arm is rotatably connected to the hoisting fixture base, and a boom is rotatably connected to the end of the main arm opposite to the hoisting fixture base. Both the main arm and the boom are horizontally positioned. A winch is mounted on the boom, and a lifting ring is threaded onto the gate for engagement with the winch hook.

Description

Technical Field

[0001] This utility model relates to the technical field of blowout preventer gate assembly and disassembly, and specifically to a blowout preventer gate hoisting device. Background Technology

[0002] The gate blowout preventer (BOP) is a core component of existing wellhead control systems. Installed on the wellhead casing head, it is used to control wellhead pressure and prevent blowouts during drilling, workover, and well testing operations. Its sealing element is a gate with a rubber core, which is closed and sealed by pushing the two gates from the left and right sides toward the center of the wellbore.

[0003] Most current gate blowout preventers are equipped with a hydraulic automatic locking mechanism. After the gate is aligned with the side door of the blowout preventer, the hydraulic automatic locking mechanism pushes the gate into the housing to seal the wellhead.

[0004] Due to the hydraulic automatic locking mechanism at the side door of the blowout preventer and the complex conditions of the wellhead, the gate valve can usually only be disassembled and installed manually. The gate valve is quite heavy, requiring multiple people to move and align it during installation. However, this installation method is not only time-consuming and labor-intensive, but also poses significant safety risks, as the blowout preventer is installed at a considerable distance from the ground. Utility Model Content

[0005] To address the aforementioned problems—namely, the time-consuming and labor-intensive installation process of the blowout preventer (BOP) gate, which also presents significant safety concerns—this invention proposes a BOP gate hoisting device. The device includes a hoisting fixture base detachably connected to the BOP body. A main boom is rotatably connected to the hoisting fixture base, and a lifting arm is rotatably connected to the end of the main boom facing away from the hoisting fixture base. Both the main boom and the lifting arm are horizontally positioned. A winch is mounted on the lifting arm, and a lifting ring is threaded onto the gate for engaging with the hook of the winch.

[0006] A further feature of this invention is that a semi-circular snap-fit ​​groove and a vertical plate are provided on the lower surface of the lifting device fixing base, the opening of the snap-fit ​​groove faces the vertical plate, and a set screw is threaded onto the vertical plate.

[0007] A further feature of this invention is that the winch includes a winch seat, the winch seat is connected to one end of the boom, the other end of the boom is rotatably connected to a guide wheel, a wire rope is wound on the winch seat, and the movable end of the wire rope passes around the guide wheel and is connected to the hook.

[0008] A further feature of this invention is that a locking nut is threaded onto the rotating connecting shaft between the main boom and the lifting device fixing seat, and a locking nut is also threaded onto the rotating connecting shaft between the main boom and the boom.

[0009] The beneficial effects of this utility model are as follows:

[0010] 1. By setting up a lifting device fixing base, it can be fixed to the blowout preventer body. With the main boom and boom both set horizontally, interference between the main boom and boom and the blowout preventer hydraulic cylinder above them can be avoided during movement. Therefore, when installing the gate, the gate can be lifted by a winch, and then the main boom and boom can be pushed to move the gate so that it is aligned with the hydraulic cylinder of the blowout preventer side door. This eliminates all the problems of manual handling and alignment during installation, greatly improves the efficiency of installation and dismantling, and the installation and dismantling process can be completed by only one person. At the same time, it also improves safety.

[0011] 2. The engagement of the snap-fit ​​groove and the top screw allows the lifting device fixing seat to be more stably fixed on the tensioning column of the hydraulic cylinder, and also makes it easier to disassemble and install.

[0012] 3. By connecting locking nuts to the two rotating connecting shafts, the main boom and boom can be fixed after the gate is aligned with the side door, so that the gate is kept in the position after being aligned with the side door, which facilitates the subsequent pushing-in operation. Attached Figure Description

[0013] Figure 1 A schematic diagram of the structure of this utility model is shown. Figure 1 .

[0014] Figure 2 A schematic diagram of the structure of this utility model is shown. Figure 2 .

[0015] Figure 3 A reference diagram showing the state of this utility model in use is provided.

[0016] Reference numerals in the attached drawings: 1. Lifting device fixing seat; 11. Snap-fit ​​groove; 12. Vertical plate; 121. Top screw; 2. Main boom; 3. Boom; 31. Winch seat; 311. Wire rope; 32. Guide wheel; 4. Blowout preventer body; 41. Hydraulic cylinder; 5. Gate plate; 51. Lifting ring; 6. Locking nut. Detailed Implementation

[0017] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0018] refer to Figure 1 , Figure 2 as well as Figure 3This utility model proposes a blowout preventer gate 5 hoisting device, including a hoisting fixture 1, which is detachably connected to the blowout preventer body 4. Four hydraulic cylinders 41 are installed on the blowout preventer body 4, and the four hydraulic cylinders 41 are set corresponding to the four side doors. The hoisting fixture 1 is connected to the tensioning column of the hydraulic cylinders 41.

[0019] A main boom 2 is rotatably connected to the lifting device mounting base 1. The main boom 2 is horizontally positioned, with one end rotatably connected to the lifting device mounting base 1 via a rotating connecting shaft. The other end of the main boom 2 is rotatably connected to a lifting arm 3. The main boom 2 is connected to the side wall of the lifting arm 3, and is also rotatably connected to the lifting arm 3 via a rotating connecting shaft. A winch is installed on the lifting arm 3. The winch is a purchased hand-cranked winch. It should be noted that an automatic winch can be installed according to usage requirements; this application only uses a hand-cranked winch as an example.

[0020] The lower surface of the lifting device fixing base 1 is integrally provided with a semi-circular snap-fit ​​groove 11 and a vertical plate 12. The vertical plate 12 is fixedly mounted perpendicular to the lifting device, and the opening of the snap-fit ​​groove 11 faces the vertical plate 12. A connecting screw 121 is threaded onto the vertical plate 12. The snap-fit ​​groove 11 is set with the same diameter as the tensioning column of the hydraulic cylinder 41. Therefore, during installation, the snap-fit ​​groove 11 is engaged with one of the tensioning columns of the hydraulic cylinder 41, and then the screw 121 is tightened so that the screw 121 abuts against the other tensioning column, thereby achieving the purpose of fixing the lifting device fixing base 1 to the hydraulic cylinder 41. Through the engagement of the screw 121 and the snap-fit ​​groove 11, the lifting device fixing base 1 can be stably fixed to the hydraulic cylinder 41, and disassembly and installation are also simpler and more convenient.

[0021] The winch includes a winch seat 31, which is fixedly connected to one end of the boom 3. The other end of the boom 3 is rotatably connected to a guide wheel 32. A wire rope 311 is wound on the winch seat 31. The other end of the wire rope 311 is fixed to the winch seat 31. The other end of the wire rope 311 is a movable end. The movable end passes around the guide wheel 32 and is fixedly connected to a hook. A lifting ring 51 is threaded on the upper surface of the gate plate 5. The hook and the lifting ring 51 are compatible, that is, the hook can be hooked onto the lifting ring 51.

[0022] It should be noted that both rotating connecting shafts are also threaded with locking nuts 6.

[0023] The usage process is illustrated by installing the gate 5 as an example: First, install the lifting device fixing seat 1 onto the hydraulic cylinder 41 tensioning column of the corresponding side door. Then, loosen the two locking nuts 6 so that the main boom 2 can rotate relative to the lifting device fixing seat 1 and the boom 3 can rotate relative to the main boom 2. Then, push the main boom 2 and the boom 3 so that the hook can engage with the lifting ring 51 on the gate 5. Then, turn the handwheel on the winch seat 31 to lift the gate 5.

[0024] Secondly, after the gate 5 is lifted, push the main boom 2 and the boom 3 to adjust the position of the gate 5 so that the gate 5 is aligned with the side door, and then tighten the two locking nuts 6 to fix the main boom 2 and the boom 3.

[0025] Finally, the aligned gate 5 is pushed into the side door by the hydraulic cylinder 41, thus completing the installation process.

[0026] In summary, this utility model, by setting up a lifting device fixing seat 1, can fix it to the blowout preventer body 4. By setting the main boom 2 and the boom 3 horizontally, interference between the main boom 2 and the boom 3 and the blowout preventer hydraulic cylinder 41 above them during movement can be avoided. Therefore, when installing the gate 5, the gate 5 can be lifted by a winch, and then the main boom 2 and the boom 3 can be pushed to move the gate 5, aligning it with the hydraulic cylinder of the blowout preventer side door. This eliminates all the problems of manual handling and alignment, greatly improving the efficiency of installation and disassembly. The installation and disassembly process can be completed by only one person, while also improving safety. The cooperation between the locking groove 11 and the set screw 121 allows the lifting device fixing seat 1 to be more stably fixed to the tensioning column of the hydraulic cylinder 41, and also facilitates disassembly and installation. By connecting locking nuts 6 to the two rotating connecting shafts, the main arm 2 and the boom 3 can be fixed after the gate 5 is aligned with the side door, so that the gate 5 is kept in the position after being aligned with the side door, which facilitates the subsequent pushing-in work.

[0027] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0028] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0031] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A blowout preventer ram hoist, characterized by: It includes a lifting device mounting base (1), which is detachably connected to the blowout preventer body (4). The main boom (2) is rotatably connected to the lifting device mounting base (1). The end of the main boom (2) away from the lifting device mounting base (1) is rotatably connected to the boom (3). The main boom (2) and the boom (3) are both horizontally arranged. A winch is installed on the boom (3). A lifting ring (51) is threaded onto the gate plate (5) for cooperating with the hook of the winch.

2. The preventer ram hoist of claim 1, wherein: The lower surface of the lifting device fixing base (1) is provided with a semi-circular snap-fit ​​groove (11) and a vertical plate (12). The opening of the snap-fit ​​groove (11) is set towards the vertical plate (12), and the vertical plate (12) is threaded with a set screw (121).

3. The preventer ram hoist of claim 1, wherein: The winch includes a winch seat (31), which is connected to one end of the boom (3). The other end of the boom (3) is rotatably connected to a guide wheel (32). A wire rope (311) is wound on the winch seat (31), and the movable end of the wire rope (311) passes around the guide wheel (32) and is connected to the hook.

4. The blowout preventer gate hoisting device according to claim 1, characterized in that: A locking nut (6) is threaded on the rotating connecting shaft between the main boom (2) and the lifting device fixing seat (1), and a locking nut (6) is also threaded on the rotating connecting shaft between the main boom (2) and the boom (3).

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