Maintenance mechanism for petroleum blowout preventer

Abstract

The utility model discloses a petroleum blowout preventer maintenance mechanism which comprises a maintenance platform, a rotating disc is arranged at the top of the maintenance platform, an electric push rod is fixedly connected to the interior of the rotating disc in a circular shape, the output end of the electric push rod is fixedly connected with a clamping plate, and a blowout preventer body is arranged in the rotating disc. Flashboards are symmetrically arranged on one side of the blowout preventer body, fixing nuts are symmetrically and fixedly connected to one sides of the flashboards, a hydraulic pump is fixedly connected to the top of the overhauling platform, and when it is detected that use is affected by the internal damage condition of the blowout preventer body, the hydraulic pump and a hydraulic connecting pipe are connected through an oil pipe, the hydraulic pump is started, and the hydraulic pump is started; the hydraulic oil is conveyed into the unlocking mechanism of the blowout preventer body, the pressure is gradually increased until the locking mechanism of the blowout preventer body starts to be loosened, the blowout preventer body is rapidly disassembled, the labor intensity of workers is reduced, and the working efficiency and the maintenance quality are improved.

Description

Technical Field

[0001] This utility model belongs to the field of blowout preventer maintenance technology, and specifically relates to an oil blowout preventer maintenance mechanism. Background Technology

[0002] A blowout preventer (BOP) is used to close the wellhead during well testing, workover, and completion operations to prevent blowouts. It combines full and partial sealing functions into one device, featuring simple structure, ease of operation, and high pressure resistance. It is a commonly used safety sealing device in oilfields to prevent blowouts. A BOP typically consists of multiple sealing components and can quickly close when abnormal pressure occurs at the wellhead, preventing oil, gas, water, and other fluids from escaping. Its working principle is based on sealing and pressure control technology. By monitoring and regulating the wellhead pressure, it ensures the safety of drilling operations. The importance of BOPs in oil extraction is extremely high, therefore, regular inspection and maintenance are necessary.

[0003] The existing maintenance organizations have a relatively complex maintenance process, and most of the disassembly and assembly are done manually with simple tools. This results in high labor intensity for workers, poor working conditions, a high risk of safety accidents, high work danger, and low maintenance efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an oil blowout preventer maintenance mechanism to solve the problems mentioned in the background art, such as the complex maintenance process of the existing maintenance mechanism, the fact that it is mostly done manually with simple tools, the high labor intensity of workers, the poor working environment, the high risk of safety accidents, the high work danger, and the low maintenance efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a maintenance mechanism for an oil blowout preventer (BOP), comprising a maintenance platform, a rotating disk at the top of the maintenance platform, an electric push rod fixedly connected to the inside of the rotating disk in a circular shape, a clamping plate fixedly connected to the output end of the electric push rod, a BOP body disposed inside the rotating disk, a gate plate symmetrically disposed on one side of the BOP body, a hydraulic pipe fixedly connected to one side of the gate plate, a hydraulic pump fixedly connected to the top of the maintenance platform, a support frame fixedly connected to the top of the maintenance platform, cylinders symmetrically fixedly connected inside the support frame, a moving plate fixedly connected to the output end of the cylinders, and an air pump fixedly connected inside the moving plate.

[0006] Preferably, the maintenance platform is symmetrically and fixedly connected to support legs at its bottom.

[0007] Preferably, a motor is fixedly connected to the bottom of the maintenance platform, and a rotating shaft is fixedly connected to the output end of the motor.

[0008] Preferably, the rotating shaft and the rotating disk are fixedly connected.

[0009] Preferably, a pressure sensor is fixedly connected to one side of the inside of the rotating disk.

[0010] Preferably, the gate is fixedly connected to the blowout preventer body by fixing bolts, and a fixing nut is threaded on the outside of the fixing bolts.

[0011] Preferably, an oil pipe is snap-fitted to the top of the hydraulic pump, and the oil pipe and the hydraulic connection are snap-fitted together.

[0012] Preferably, a controller is fixedly connected to one side of the support frame.

[0013] Compared with the prior art, this utility model provides an oil blowout preventer maintenance mechanism, which has the following beneficial effects:

[0014] 1. This utility model uses an electric push rod to push the clamping plate into contact with the surface of the blowout preventer (BOP) body, thus clamping and fixing the BOP body. This allows the mechanism to fix BOP bodies of different specifications and sizes, improving the applicability and practicality of the mechanism. Then, the cylinder is activated to push the moving plate, which drives the air pump downward. The moving plate contacts the BOP body, and the air pump is activated to allow airflow to enter from the top of the BOP body. The air pressure sensor inside the rotating disk detects the air pressure value at the bottom of the BOP body and transmits the electrical signal to the external controller for analysis and processing. This allows the system to obtain the blockage status and sealing performance of the BOP body when it is open and closed. The detection steps are simple and ensure the performance stability of the BOP body.

[0015] 2. This utility model, by setting up a hydraulic pump, when internal damage to the blowout preventer body is detected and affects its use, connects the hydraulic pump and hydraulic connector through the oil pipe, turns on the hydraulic pump, and delivers hydraulic oil to the unlocking mechanism of the blowout preventer body, gradually increasing the pressure until the locking mechanism of the blowout preventer body begins to loosen, thereby achieving rapid disassembly of the blowout preventer body, reducing manual labor intensity, and improving work efficiency and maintenance quality.

[0016] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a scientific and reasonable structure, is safe and convenient to use, and provides great help to people. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1This is an isometric structural diagram of one side of an oil blowout preventer maintenance mechanism proposed in this utility model.

[0019] Figure 2 This is an isometric structural diagram of the other side of an oil blowout preventer maintenance mechanism proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the clamping plate structure of an oil blowout preventer maintenance mechanism proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the blowout preventer body structure of an oil blowout preventer maintenance mechanism proposed in this utility model.

[0022] Figure 5 This is a schematic diagram of the motor structure of an oil blowout preventer maintenance mechanism proposed in this utility model.

[0023] Figure 6 This is a schematic diagram of the movable plate structure of an oil blowout preventer maintenance mechanism proposed in this utility model.

[0024] In the diagram: 1. Maintenance platform; 2. Support leg; 3. Rotary disc; 4. Motor; 5. Rotary shaft; 6. Air pressure sensor; 7. Electric push rod; 8. Clamping plate; 9. Blowout preventer body; 10. Gate plate; 11. Fixing bolt; 12. Fixing nut; 13. Hydraulic pipe; 14. Hydraulic pump; 15. Oil pipe; 16. Support frame; 17. Controller; 18. Cylinder; 19. Moving plate; 20. Air pump. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-6This utility model provides a technical solution: an oil blowout preventer (BOP) maintenance mechanism, including a maintenance platform 1, a rotating disk 3 on the top of the maintenance platform 1, an electric push rod 7 fixedly connected inside the rotating disk 3 (which is circular), a clamping plate 8 fixedly connected to the output end of the electric push rod 7, a BOP body 9 inside the rotating disk 3, a gate 10 symmetrically arranged on one side of the BOP body 9, hydraulic pipes 13 symmetrically fixedly connected to one side of the gate 10, a hydraulic pump 14 fixedly connected to the top of the maintenance platform 1, and a support frame 16 fixedly connected to the top of the maintenance platform 1. A cylinder 18 is symmetrically fixedly connected inside the support frame 16. A moving plate 19 is fixedly connected to the output end of the cylinder 18. An air pump 20 is fixedly connected inside the moving plate 19. When the air pump 20 is started, airflow enters from the top of the blowout preventer body 9. The air pressure sensor 6 inside the rotating disk 3 detects the air pressure value at the bottom of the blowout preventer body 9 and transmits the electrical signal to the external controller 17 for analysis and processing. This allows the controller to obtain the blockage status and sealing performance of the blowout preventer body 9 when it is open and closed. The detection steps are simple and ensure the performance stability of the blowout preventer body 9.

[0027] In this utility model, preferably, the bottom of the maintenance platform 1 is symmetrically and fixedly connected with support legs 2.

[0028] In this utility model, preferably, a motor 4 is fixedly connected to the bottom of the maintenance platform 1, and a rotating shaft 5 is fixedly connected to the output end of the motor 4. The rotating disk 3 can be rotated by the motor 4, which facilitates the connection between the oil pipe 15 and the hydraulic connection pipe 13.

[0029] In this invention, preferably, the rotating shaft 5 and the rotating disk 3 are fixedly connected.

[0030] In this invention, preferably, a pressure sensor 6 is fixedly connected to one side of the inside of the rotating disk 3.

[0031] In this utility model, preferably, the gate plate 10 is fixedly connected to the blowout preventer body 9 by a fixing bolt 11, and a fixing nut 12 is threaded on the outside of the fixing bolt 11.

[0032] In this utility model, preferably, the top of the hydraulic pump 14 is snap-fitted with an oil pipe 15, and the oil pipe 15 and the hydraulic connection pipe 13 are snap-fitted together.

[0033] In this utility model, preferably, a controller 17 is fixedly connected to one side of the support frame 16.

[0034] The working principle and usage process of this utility model are as follows: In use, firstly, the blowout preventer body 9 is placed inside the rotating disk 3. Then, by activating the electric push rod 7, the clamping plate 8 is pushed to contact the surface of the blowout preventer body 9, clamping and fixing the blowout preventer body 9. This allows the mechanism to fix blowout preventer bodies 9 of different specifications and sizes, improving the applicability and practicality of the mechanism. Next, the cylinder 18 is activated to push the moving plate 19, causing the air pump 20 to move downwards. The moving plate 19 contacts the blowout preventer body 9, and the air pump 20 is activated, allowing airflow to enter from the top of the blowout preventer body 9. The air pressure sensor 6 inside the rotating disk 3 detects the air pressure value at the bottom of the blowout preventer body 9. The electrical signal is transmitted to the external controller 17 for analysis and processing, thereby obtaining the blockage status and sealing performance of the blowout preventer body 9 when it is opened and closed. The detection steps are simple and ensure the performance stability of the blowout preventer body 9. When internal damage to the blowout preventer body 9 is detected and affects its use, the hydraulic pump 14 and hydraulic connector 13 are connected through the oil pipe 15. The hydraulic pump 14 is turned on and hydraulic oil is delivered to the unlocking mechanism of the blowout preventer body 9. The pressure is gradually increased until the locking mechanism of the blowout preventer body 9 begins to loosen, so as to quickly disassemble the blowout preventer body 9, reduce the intensity of manual labor, and improve work efficiency and maintenance quality.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A maintenance mechanism for oil blowout preventers, comprising a maintenance platform (1), characterized in that: The maintenance platform (1) is equipped with a rotating disk (3) on top. The rotating disk (3) is circular and fixedly connected to an electric push rod (7). The output end of the electric push rod (7) is fixedly connected to a clamping plate (8). The rotating disk (3) is equipped with a blowout preventer body (9). A gate plate (10) is symmetrically arranged on one side of the blowout preventer body (9). A hydraulic pipe (13) is symmetrically fixedly connected on one side of the gate plate (10). A hydraulic pump (14) is fixedly connected to the top of the maintenance platform (1). A support frame (16) is fixedly connected to the top of the maintenance platform (1). A cylinder (18) is symmetrically fixedly connected inside the support frame (16). A moving plate (19) is fixedly connected to the output end of the cylinder (18). An air pump (20) is fixedly connected inside the moving plate (19).

2. The oil blowout preventer maintenance mechanism according to claim 1, characterized in that: The maintenance platform (1) has symmetrically fixed support legs (2) at its bottom.

3. The oil blowout preventer maintenance mechanism according to claim 1, characterized in that: The maintenance platform (1) is fixedly connected to a motor (4) at its bottom, and the output end of the motor (4) is fixedly connected to a rotating shaft (5).

4. The oil blowout preventer maintenance mechanism according to claim 3, characterized in that: The rotating shaft (5) and the rotating disk (3) are fixedly connected.

5. The oil blowout preventer maintenance mechanism according to claim 1, characterized in that: A pressure sensor (6) is fixedly connected to one side of the inside of the rotating disk (3).

6. The oil blowout preventer maintenance mechanism according to claim 1, characterized in that: The gate (10) is fixedly connected to the blowout preventer body (9) by a fixing bolt (11), and a fixing nut (12) is threaded on the outside of the fixing bolt (11).

7. The oil blowout preventer maintenance mechanism according to claim 1, characterized in that: The hydraulic pump (14) is connected to an oil pipe (15) at the top, and the oil pipe (15) and the hydraulic connector (13) are connected by a snap-fit ​​connection.

8. The oil blowout preventer maintenance mechanism according to claim 1, characterized in that: A controller (17) is fixedly connected to one side of the support frame (16).

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