Petroleum drilling machine traveling and hoisting system with torque amplitude limiting device
By introducing a torque limiting device into the traveling block system of an oil drilling rig, and using a diaphragm pressure sensor and a PLC control system to detect the status of the lifting clamp pin, the torque output of the winch is limited, thus solving the drilling accident caused by mismatch in the lifting ring position and achieving safe and reliable automatic protection.
Patent Information
- Application Number
- CN202423206922.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Traditional traveling hoist systems are prone to drilling accidents when the hoisting rings are mismatched in low-level conditions and when the suspended weight is greater than 150t. Existing improvement methods have failed to effectively prevent such accidents.
A torque limiting device is adopted, which detects the status of the lifting clamp pin through a thin-film pressure sensor and uses a PLC control system and a winch frequency conversion system to limit the winch torque output, so as to avoid raising the power when the lifting ring position is mismatched and achieve automatic protection.
This effectively avoids drilling accidents caused by mismatched lifting ring positions, improves safety and reliability, reduces human error, and eliminates single-lifting-ring accidents.
Smart Images
Figure CN223522215U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of petroleum drilling equipment, concretely relates to a petroleum drilling rig travelling block system with torque limiting device. BACKGROUND
[0002] The traditional travelling block system needs artificial auxiliary installation of the elevator or adjustment of the hanger position under the working condition of low position interval (0-0.5m) and hanging weight >150t, and if the drilling site operator does not cooperate properly or the driller control is not accurate enough, the situation of the hanger ring, the elevator position mismatching, such as the hanger ring clamping into the elevator, the elevator bolt not being inserted into place, one hanger ear not being hung or not being hung at all, etc. will occur, which will lead to frequent drilling site accidents, and there are safety hazards such as broken drill pipe, falling into the well and hanger ring opening to hurt people.
[0003] At present, the methods for preventing the "single hanger ring" accident during the drilling rig operation mostly make various improvements on the elevator pin, and there are also automatic control devices for preventing the "single hanger ring" tripping by controlling the disc brake and the clutch, but since the adverse wellhead environment and the lag time of the control system gas circuit and liquid circuit are not considered, the above improvement methods only stay in the theoretical verification stage, the actual promotion is limited, and the occurrence of the single hanger ring accident cannot be effectively prevented. CONTENT OF THE UTILITY MODEL
[0004] The utility model provides a petroleum drilling rig travelling block system with torque limiting device, under the non-safety working condition, the frequency converter torque output is limited through the torque limiting device, the winch lifting power is reduced, and therefore the occurrence of the travelling block system accident is avoided.
[0005] To solve the above problems, the utility model adopts the following technical scheme:
[0006] A petroleum drilling rig travelling block system with torque limiting device, including the elevator bolt, the driller house and the winch frequency conversion system, the petroleum drilling rig travelling block system includes a wireless transmitting device, a thin film pressure sensor is arranged on the elevator bolt, and the thin film pressure sensor is connected with the signal input end of the wireless transmitting device; a PLC control box is arranged in the driller house, and the PLC control box is internally provided with a PLC processor, an HMI touch screen and a wireless signal receiving device; the signal output end of the wireless transmitting device is connected with the signal input end of the wireless signal receiving device, the signal output end of the wireless signal receiving device is connected with the signal input end of the PLC processor, and the signal output end of the PLC processor is connected with the HMI touch screen and the winch frequency conversion system.
[0007] Further, a buzzer is arranged in the PLC control box, and the buzzer is connected with the signal output end of the PLC processor.
[0008] Further, the buzzer is dependent on the PLC control program fault alarm.
[0009] Further, the wireless transmitting device is arranged at the wellhead of the drilling rig.
[0010] Further, the thin film pressure sensor is a non-contact sensor.
[0011] Further, the thin film pressure sensor is two, respectively symmetrically arranged on both sides of the elevator pin.
[0012] Compared with the prior art, the utility model has the beneficial effects as follows:
[0013] 1. The petroleum drilling rig travelling block system provided by the utility model, through the novel design of the main control system control process and the pin module, the insertion state of the elevator pin is detected in time when the winch is lifted, whether the left and right lifting rings are safely in place is judged, if the lifting ring is clamped into the elevator, the elevator pin is not inserted in place, one of the lifting lugs is not hung or is not hung at all, and the lifting ring and the elevator position do not match, the system transmits the signal to the winch frequency conversion system in time, the torque limiting device is taken as the judgment point to limit the winch torque output, the winch lifting power is reduced, the elevator with the drilling tool is pulled by the insufficient output, and thus the protection effect is achieved.
[0014] 2. The system has the advantages of ingenious overall design, rigorous logic, simplified configuration, convenient disassembly and assembly, easy operation, replacement of the traditional manual observation of whether the elevator pin is inserted in place, reduction of the error caused by subjective factors, software detection of whether the lifting ring is clamped into the elevator, whether the pin is in place, whether the torque is limited, and whether the suspended weight reaches the lifting and lowering condition, judgment of whether the drilling device acts through the protection interval setting, lifting, pin state and torque, and change of the suspended weight, and the safety level of the single lifting ring protection is greatly improved, and the occurrence of the single lifting ring travelling block system accident is fundamentally eliminated. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 It is the petroleum drilling rig travelling block system control block diagram of the utility model;
[0016] Fig. 2 It is the petroleum drilling rig travelling block system control logic diagram of the utility model. DETAILED DESCRIPTION
[0017] The utility model will be further described below in combination with the drawings:
[0018] As Figs. 1-2As shown, the utility model is a kind of petroleum drilling rig travelling block system with torque limiting device, including lifting clamp bolt, driller house and winch frequency conversion system, the petroleum drilling rig travelling block system includes wireless transmitting device at the wellhead of drilling rig, two non-contact film pressure sensors are symmetrically arranged on the both sides of lifting clamp bolt, and the film pressure sensor is connected with the signal input end of wireless transmitting device;PLC control box is arranged in the driller house, PLC control box is equipped with PLC processor, HMI touch screen, buzzer and wireless signal receiving device;The signal output end of wireless transmitting device is connected with the signal input end of wireless signal receiving device, the signal output end of wireless signal receiving device is connected with the signal input end of PLC processor, the signal output end of PLC processor is connected with HMI touch screen, buzzer and winch frequency conversion system respectively, and buzzer is connected with PLC control program fault alarm, and electronic record is made to alarm fault, and HMI touch screen can also be prevented from being touched without action.
[0019] Travelling block system in low position interval (0-0.5m), hanging weight>150t working condition, the insertion state of lifting clamp bolt is detected by film pressure sensor, the position of big hook and the lifting and lowering state of winch are detected by winch frequency conversion system.Under the condition of tripping, the insertion state of lifting clamp bolt is detected when winch is lifted at big hook "zero position", whether left and right lifting ring is safely in place is judged.If the situation of lifting ring, lifting clamp position mismatch occurs, such as lifting ring clamping into lifting clamp, lifting clamp bolt not inserted in place, lifting lug not hung or not hung at all, film pressure sensor transmits the state signal of current lifting clamp bolt to wireless transmitting device, wireless transmitting device receives signal and transmits to wireless signal receiving device in PLC control box, wireless signal receiving device sends the received signal to PLC processor for processing, and the signal processed by PLC processor is transmitted to winch frequency conversion system through signal cable, so as to limit the torque output of winch as the judgment point of torque limiting device, reduce the lifting power of winch, so that the lifting clamp with drilling tool is pulled, thereby playing a protective role.Multiple working condition protection scheme of travelling block system can also be designed simultaneously, including whether travelling block system is lifted, whether lifting clamp is in safe range, whether lifting clamp bolt is in place, whether torque output needs to be limited and other conditions, to fundamentally eliminate the occurrence of "single lifting ring" travelling block system accident.
Claims
1. A petroleum drilling rig traveling block system having a torque limiter device, comprising a hook latch, a driller's cabin and a winch frequency conversion system, characterized in that: The petroleum drilling rig travelling block system comprises a wireless transmitting device, a film pressure sensor arranged on a hook pin, and the film pressure sensor is connected with a signal input end of the wireless transmitting device; a PLC control box is arranged in a driller's cabin, a PLC processor, an HMI touch screen and a wireless signal receiving device are arranged in the PLC control box; a signal output end of the wireless transmitting device is connected with a signal input end of the wireless signal receiving device, a signal output end of the wireless signal receiving device is connected with a signal input end of the PLC processor, and signal output ends of the PLC processor are connected with the HMI touch screen and a winch frequency conversion system respectively.
2. A drawworks system for an oil rig having a torque limiting device as defined in claim 1, wherein: A buzzer is further arranged in the PLC control box, and the buzzer is connected with the signal output end of the PLC processor.
3. A drawworks system for an oil rig having a torque limiting device as defined in claim 2, wherein: The buzzer is dependent on the PLC control program fault alarm.
4. A drawworks system for an oil rig having a torque limiting device as defined in claim 3, wherein: The wireless transmitting device is arranged at a wellhead of the drilling rig.
5. A drawworks system for a petroleum drilling rig having a torque limiter device as claimed in any one of claims 1 to 4 wherein: The film pressure sensor is a non-contact sensor.
6. A drawworks system for an oil rig having a torque limiting device as defined in claim 5, wherein: The film pressure sensor is two, and is symmetrically arranged on two sides of the hook pin respectively.