A blowout preventer grease injection control device

Abstract

The utility model discloses a blowout preventer grease injection control device, include: organism, be provided with display screen on the organism, the organism is provided with a plurality of control buttons, install hardware control board in the organism, hardware control board's input is connected with control button, hardware control board output is connected with display screen, hardware control board includes: CPU, CPU's input interface is connected with image input module and sensor acquisition module, CPU's output is connected with PLC module and display screen, PLC module's output is connected with the actuator for operating blowout preventer work. Through CPU can gather sensor's data and transmit to output operation structure, through actuator can carry out remote control to wellhead device, realize sensor and import control device's real -time interaction, complete integrated grease injection start -stop, hydraulic pressure pressure regulating, fault reset etc. The core function of one -key type control, ensure the safety in the production working process, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of oil extraction equipment technology, and in particular to a blowout preventer grease injection control device. Background Technology

[0002] Traditional grease injection control requires separate PLC cabinets, video monitoring systems, and protocol converters, which occupy a large space. This operating system leads to problems such as cumbersome operation, low data collaboration efficiency, and numerous points of failure. When existing industrial protocols are used in blowout preventer control, external protocol conversion modules are often required, increasing system complexity and latency. In addition, the grease injection process lacks deep integration of real-time video monitoring and control, and emergency operations require secondary manual confirmation, resulting in insufficient response speed. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies, the purpose of this utility model is to provide a grease injection control device for blowout preventers.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A blowout preventer grease injection control device includes: a body, a display screen mounted on the body, multiple control buttons mounted on the body, a hardware control board installed inside the body, an input terminal of the hardware control board connected to the control buttons, and an output terminal of the hardware control board connected to the display screen; the hardware control board includes: a CPU, an input interface of the CPU connected to an image input module and a sensor acquisition module, an output terminal of the CPU connected to a PLC module and the display screen, and an actuator for operating the blowout preventer connected to the output terminal of the PLC module.

[0006] The bottom of the machine body is equipped with a ventilation opening.

[0007] The sensor acquisition module is connected to the CPU via a first PN board.

[0008] A second PN board is connected between the CPU and the PLC module.

[0009] The image input module includes an industrial camera, which is connected to a transmission module that transmits data via the RTSP protocol.

[0010] The CPU model is NXP i.MX.

[0011] The PLC module model is Siemens S7-1200.

[0012] The actuator includes: a blowout preventer control module, which is connected to a wellhead solenoid valve, a hydraulic pump frequency converter, a grease injection pump frequency converter, a grease transfer pump frequency converter, a hydraulic control proportional valve, a cable scraper proportional valve, a blowout preventer gate control valve group, a blowout preventer box control valve group, a plug-in control valve group, and pressure and level sensors.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This utility model provides a grease injection control device for blowout preventers. Through the CPU and I / O module, it can collect data from the sensors and transmit it to the output operating structure. Through the actuator, it can remotely control the wellhead device, realize real-time interaction between the sensors and the inlet control device, and complete one-button control of core functions such as grease injection start / stop, hydraulic pressure adjustment, and fault reset, so as to ensure safety in the production process and improve work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the blowout preventer grease injection control device of this utility model. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of the blowout preventer grease injection control device of this utility model. Figure 2 ;

[0017] Figure 3 This is a block diagram of the hardware control board structure of the blowout preventer grease injection control device of this utility model.

[0018] In the diagram, 1—body; 2—display screen; 3—control buttons; 4—hardware control board; 5—ventilation port; 41—CPU; 42—image input module; 43—sensor acquisition module; 44—PLC module; 45—actuator; 46—first PN board; 47—second PN board; 48—safety interlock module. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0020] like Figure 1As shown, this utility model provides a blowout preventer grease injection control device, including: a body 1, a display screen 2 on the body 1, a plurality of control buttons 3 on the body 1, a hardware control board 4 installed inside the body 1, the input end of the hardware control board 4 being connected to the control buttons 3, and the output end of the hardware control board 4 being connected to the display screen 2; the hardware control board 4 includes: a CPU 41, the input interface of the CPU 41 being connected to an image input module 42 and a sensor acquisition module 43, the output end of the CPU 41 being connected to a PLC module 44 and the display screen 2, and the output end of the PLC module 44 being connected to an actuator 45 for operating the blowout preventer.

[0021] like Figure 2 As shown, a ventilation opening 5 is provided at the bottom of the body 1. This allows for timely heat dissipation of the circuit hardware within the body 1, preventing overheating and damage.

[0022] like Figure 3 As shown, a first PN board 46 is connected between the sensor acquisition module 43 and the CPU 41. According to claim 1 or 3, the blowout preventer grease injection control device is characterized in that a second PN board 47 is connected between the CPU 41 and the PLC module 44.

[0023] In this invention, the PN (Pseudo-Noise) board is a PN communication board, whose main control chip is the TI Sitara AM6421 (dual-core ARM Cortex-A53 + PRU-ICSS industrial communication subsystem), which natively supports the Profinet RT / IRT protocol stack and meets μs-level synchronization accuracy. The integration method is as follows: it is plugged into the motherboard as a Mini-PCIe daughterboard, and interacts with the main CPU (i.MX8) through the PCIe x1 channel. The connection methods between the PN board and the CPU include high-speed interfaces such as PCIe, GbE, and SPI.

[0024] In this invention, the image input module 42 includes an industrial camera connected to a transmission module that transmits data via the RTSP protocol. Specifically, the video input includes a network interface supporting up to 12 channels of 1080p@30fps H.265 video streams; and an HDMI-IN for expanding third-party monitoring feeds. Control outputs include dual RS485 (isolation voltage 2500V) + CAN2.0B interfaces, supporting Modbus RTU / J1939 protocols.

[0025] The sensor acquisition module 43 is mainly connected to a pressure sensor. When the pressure exceeds the limit, it triggers an emergency stop process, synchronously records and saves the image to an encrypted SD card, and captures the action when the capture device moves. The AI ​​judges and performs opening or closing actions.

[0026] In this invention, the CPU 41 is an NXP i.MX8. The PLC module 44 is a Siemens S7-1200 control module. The actuator 45 includes a blowout preventer (BOP) control module, which is connected to a wellhead solenoid valve, a hydraulic pump frequency converter, a grease injection pump frequency converter, a grease transfer pump frequency converter, a hydraulic control proportional valve, a cable scraper proportional valve, a BOP gate control valve group, a BOP box control valve group, and a plug-in / plug control valve group.

[0027] The CPU41 is also connected to a safety interlock module 48 at its output. The safety interlock module 48 is connected to the hydraulic pump switch, and when an emergency event occurs, the hydraulic pump output is locked simultaneously when the emergency stop is triggered to ensure operational safety.

[0028] The functional process of this utility model is as follows:

[0029] The system collects wellhead pressure data and wellhead image data in real time through sensors (AI dynamically recognizes actions), transmits the data to the CPU, and then sends instructions from the CPU to the PLC DO / AO module to operate the grease pump frequency converter and the grease injection pump frequency converter to perform constant pressure grease injection.

[0030] The PLC module 44 transmits data to the actuator 45 for wellhead operation.

[0031] When the wellhead pressure sensor detects an increase in wellhead pressure, it controls the frequency converter of the grease pump to increase the motor speed for high-pressure grease injection, and at the same time controls all grease injection valves to open.

[0032] When the catcher sensor detects that the downhole tool is about to reach the wellhead, the automatic control valve opens the catcher to ensure the instrument passes through smoothly.

[0033] When the operator closes the wellhead, the pressure sensor data returns to zero. The system detects this and, upon the pressure returning to zero, controls the grease pump and grease injection pump frequency converter to stop. At the same time, the grease injection valve is automatically closed, and the operation process ends.

[0034] It will be apparent to those skilled in the art that the above specific examples are merely preferred embodiments of this utility model. Therefore, any improvements or modifications that those skilled in the art may make to certain parts of this utility model still embody the principles of this utility model and achieve its purpose, and all fall within the scope of protection of this utility model.

Claims

1. A grease injection control device for a blowout preventer, characterized in that, include: The machine body (1) is provided with a display screen (2), and the machine body (1) is provided with multiple control buttons (3). A hardware control board (4) is installed inside the machine body (1). The input end of the hardware control board (4) is connected to the control buttons (3), and the output end of the hardware control board (4) is connected to the display screen (2). The hardware control board (4) includes: a CPU (41), the input interface of the CPU (41) is connected to an image input module (42) and a sensor acquisition module (43), the output end of the CPU (41) is connected to a PLC module (44) and a display screen (2), and the output end of the PLC module (44) is connected to an actuator (45) for operating the blowout preventer.

2. The blowout preventer grease injection control device according to claim 1, characterized in that, The bottom of the body (1) is provided with a vent (5).

3. The blowout preventer grease injection control device according to claim 1, characterized in that, A first PN board (46) is connected between the sensor acquisition module (43) and the CPU (41).

4. The blowout preventer grease control device according to claim 1 or 3, characterized in that, A second PN board (47) is connected between the CPU (41) and the PLC module (44).

5. The blowout preventer grease injection control device according to claim 4, characterized in that, The image input module (42) includes an industrial camera, on which a transmission module is connected, and the transmission module transmits data via the RTSP protocol.

6. The blowout preventer grease injection control device according to claim 4, characterized in that, The CPU (41) is model NXTi.MX8.

7. The blowout preventer grease injection control device according to claim 4, characterized in that, The PLC module (44) is a Siemens S7-1200.

8. The blowout preventer grease injection control device according to claim 4, characterized in that, The actuator (45) includes: a blowout preventer control module (451) and a grease injection control module (452). The blowout preventer control module (451) is connected to a wellhead solenoid valve, a hydraulic pump frequency converter, a grease pump frequency converter, a grease injection pump frequency converter, a catcher control valve, a plug-in / plug-out control valve, and a plug-in / plug-out position display. The grease injection control module (452) is connected to a grease injection switch, which is connected to a controller to realize manual and automatic control of the grease injection system.

9. The blowout preventer grease injection control device according to claim 1, via a switch control module, is characterized in that, The output of the CPU (41) is connected to a safety interlock module (48).

10. The blowout preventer grease injection control device according to claim 9, characterized in that, The safety interlock module (48) is connected to the hydraulic pump switch.

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