An Intelligent Control System for Riser Filling Valve of Offshore Drilling Platform

Abstract

The invention provides an intelligent control system of a filling valve of a water separating pipe of a marine drilling platform and the filling valve. The system comprises a water separating pipe body, a water separating pipe chamber door, a driving oil cylinder, a pressure sensor, a displacement sensor, a balancing valve, a control valve, a lock valve, a control solenoid valve, a conversion valve, an energy storage device and an intelligent control system body, wherein the pressure sensor, the displacement sensor, the control valve and the control solenoid valve are additionally respectively electrically connected with the intelligent control system body; the intelligent control system body comprises a data processing circuit, a communication circuit, a driving circuit, a pressure detecting circuit and a displacement detection circuit. With the adoption of the system, the filling valve of the water separating pipe has the intelligent device detecting and intelligent operating functions; therefore, the reliability and stability in device operation are improved; in addition, the defects of slow corresponding control and small performing precision of the filling valve due to excessive pressure difference of the balancing valve in the traditional control system can be effectively solved, and the operation stability and accuracy of the filling valve of the water separating pipe can be improved.

Description

technical field [0001] The invention relates to the technical field of a filling valve control system, in particular to an intelligent control system for a riser filling valve of an ocean drilling platform. Background technique [0002] At present, in the process of deep-sea drilling, the filling valve is one of the main equipments for protecting drilling equipment and pipelines. It has a wide range of applications. The pressure difference between the inside and outside of the valve is used as the driving control signal to realize the control of the filling valve. In use, it is found that once the balance valve is blocked and damaged by mud and other debris, the control of the filling valve will fail, resulting in filling The operation reliability of the valve is poor. At the same time, when the pressure difference between the inside and outside of the balance valve is small, it will also cause control failure. In order to solve this problem, the current common method is to ...

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of deep-sea drilling, the filling valve is one of the main equipments for protecting drilling equipment and pipelines. It has a wide range of applications. The pressure difference between the inside and outside of the valve is used as the driving control signal to realize the control of the filling valve. In use, it is found that once the balance valve is blocked and damaged by mud and other debris, the control of the filling valve will fail, resulting in filling The operation reliability of the valve is poor. At the same time, when the pressure difference between the inside and outside of the balance valve is small, it will also cause control failure. In order to solve this problem, the current common method is to connect a remote control oil circuit to the control oil circuit of the filling valve. Therefore, remote control is carried out, but this approach often affects the depth of use of the filling valve, thereby limiting the scope of use of the filling valve. As a result, the ability to control and monitor the operating state of the perfusion valve is low, and the accuracy of control execution is low. As a result, the current perfusion valve cannot effectively meet the needs of actual use. To solve this problem, it is urgent to develop a perfusion valve with intelligent control operation. equipment, easy to meet the needs of actual use

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