CN-224228970-U - Hydraulic control device of environment-friendly rotary blowout preventer

Abstract

The utility model discloses a hydraulic control device of an environment-friendly rotary blowout preventer, which relates to the technical field of petroleum drilling and production and aims to solve the problems that the existing hydraulic control device has defects in pressurization and energy storage and the working stability is to be further improved, the liquid outlet port of the oil tank is communicated with the liquid inlet port of the hydraulic pump set through a hydraulic pipeline, the liquid outlet port of the hydraulic pump set is communicated with the liquid inlet port of the energy accumulator through a hydraulic pipeline, an installation seat is arranged on the inner bottom end face of the frame, and a manual steering valve and a hydraulic lock are arranged on the upper end face of the installation seat. The hydraulic oil can be pressurized and stored, when power failure occurs, a switch operation can be performed, meanwhile, the hydraulic oil can be timely prevented from flowing back when the pipeline breaks, the original state of the hydraulic oil cylinder is ensured to be maintained, and the working stability and the safety are high.

Inventors

• CAO YANG
• YANG YANG
• LI JINGTAO
• SUN FEI

Assignees

• 江苏卫东机械有限公司

Dates

Publication Date

20260512

Application Date

20250730

Claims (6)

1. 1. The hydraulic control device of the environment-friendly rotary blowout preventer comprises a frame (1) and is characterized in that an oil tank (2), a hydraulic pump set (7) and an energy accumulator (8) are arranged on the bottom end face of the interior of the frame (1), a liquid outlet port of the oil tank (2) is communicated with a liquid inlet port of the hydraulic pump set (7) through a hydraulic pipeline, and a liquid outlet port of the hydraulic pump set (7) is communicated with a liquid inlet port of the energy accumulator (8) through a hydraulic pipeline.
2. 2. The hydraulic control device of the environment-friendly rotary blowout preventer of claim 1, wherein the installation seat is arranged on the inner bottom end surface of the frame (1), and the manual steering valve (3) and the hydraulic lock (4) are arranged on the upper end surface of the installation seat.
3. 3. The hydraulic control device of the environment-friendly rotary blowout preventer of claim 2, wherein the liquid outlet port of the accumulator (8) is communicated with the liquid inlet port of the liquid inlet pipeline of the manual steering valve (3) through a hydraulic pipeline, and the liquid outlet port of the liquid inlet pipeline of the manual steering valve (3) is communicated with the hydraulic cylinder through a hydraulic pipeline.
4. 4. The hydraulic control device of the environment-friendly rotary blowout preventer of claim 2, wherein the hydraulic lock (4) is arranged in a hydraulic pipeline between a hydraulic cylinder and a liquid inlet of a liquid return line of the manual steering valve (3).
5. 5. The hydraulic control device of the environment-friendly rotary blowout preventer of claim 1, wherein a plurality of bobbins (5) are fixedly arranged on the inner top end surface of the frame (1) through bolts.
6. 6. The hydraulic control device of the environment-friendly rotary blowout preventer of claim 1, wherein the electric control cabinet (6) is installed on the inner top end surface of the frame (1) through a bracket.

Description

Hydraulic control device of environment-friendly rotary blowout preventer Technical Field The utility model relates to the technical field of petroleum drilling and production, in particular to a hydraulic control device of an environment-friendly rotary blowout preventer. Background Currently, the underbalanced drilling technology is developed and mature, and the effects of finding and protecting the oil and gas layer, improving the drilling speed and the like are also recognized. With the rapid development of the petroleum industry, the field of petroleum drilling has adopted the underbalanced drilling technology as a preferred technology. Meanwhile, the country greatly promotes environmental remediation, higher requirements are put forward on production equipment of the petroleum industry, a hydraulic control device of the environment-friendly rotary blowout preventer provides hydraulic power for a hydraulic cylinder switch of the environment-friendly rotary blowout preventer, and the travel of a hydraulic cylinder is monitored in real time. The existing hydraulic control device has the defects in pressurization and energy storage, and the working stability needs to be further improved. Disclosure of utility model The utility model aims to provide the hydraulic control device of the environment-friendly rotary blowout preventer, which can be used for boosting and storing hydraulic oil, can perform a switching operation when power failure occurs, can timely avoid the backflow of the hydraulic oil when a pipeline breaks, and ensures that the hydraulic oil cylinder maintains the original state, and has high working stability and safety. In order to achieve the above purpose, the present utility model provides the following technical solutions: The hydraulic control device of the environment-friendly rotary blowout preventer comprises a frame, wherein an oil tank, a hydraulic pump set and an energy accumulator are arranged on the bottom end face of the interior of the frame, a liquid outlet port of the oil tank is communicated with a liquid inlet port of the hydraulic pump set through a hydraulic pipeline, and a liquid outlet port of the hydraulic pump set is communicated with a liquid inlet port of the energy accumulator through a hydraulic pipeline. By adopting the technical scheme, the hydraulic oil can be subjected to supercharging energy storage operation, and the overall working stability can be effectively improved. Further, an installation seat is arranged on the inner bottom end face of the frame, and a manual steering valve and a hydraulic lock are installed on the upper end face of the installation seat. By adopting the technical scheme, manual control operation can be performed. Further, the liquid outlet port of the energy accumulator is communicated with the liquid inlet port of the liquid inlet pipeline of the manual steering valve through a hydraulic pipeline, and the liquid outlet port of the liquid inlet pipeline of the manual steering valve is communicated with the hydraulic cylinder through a hydraulic pipeline. Through adopting above-mentioned technical scheme, can utilize manual steering valve to switch hydraulic oil circuit, can effectually carry out manual management and control operation to external hydraulic cylinder. Further, the hydraulic lock is arranged in a hydraulic pipeline between the hydraulic oil cylinder and a liquid inlet port of a liquid return line of the manual steering valve. By adopting the technical scheme, the hydraulic lock can be utilized to avoid the backflow of hydraulic oil, and the stability of the state of the external hydraulic oil cylinder is ensured. Further, a plurality of bobbins are fixedly arranged on the inner top end surface of the frame through bolts. Through adopting above-mentioned technical scheme, be convenient for twine the oil pipe and accomodate. Further, an electric control cabinet is arranged on the inner top end surface of the frame through a bracket. By adopting the technical scheme, effective electric control operation can be performed. In summary, the beneficial technical effects of the utility model are as follows: 1. the utility model has the advantages of small and simple structure and firm and reliable connection; 2. When the intelligent control device works, the hydraulic pump set is used for pumping the hydraulic oil in the oil tank, then the hydraulic oil is conveyed into the accumulator, the accumulator can boost the oil pressure of the hydraulic oil, the pressurized hydraulic oil is used for controlling the external hydraulic oil cylinder, the control stability can be improved, and meanwhile, the accumulator is arranged, and when the power failure condition is faced, the high-pressure hydraulic oil stored in the accumulator can be used for realizing one-time switching operation; 3. According to the utility model, the hydraulic lock is arranged in the oil return pipeline of the external hydraulic oil cylinder, so that once the