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A Deep Sea Ball Valve Control System

A technology of valve control and deep-sea ball, applied in the direction of valve details, valve device, valve operation/release device, etc., can solve the problem of oil leakage with complex structure of pressure compensation device, and achieve simple structure, convenient operation and long service life Effect

Active Publication Date: 2020-06-09
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing deep-sea ball valve control system, the pressure compensation device on the actuator has a complex structure and there is a hidden danger of oil leakage

Method used

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  • A Deep Sea Ball Valve Control System
  • A Deep Sea Ball Valve Control System
  • A Deep Sea Ball Valve Control System

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing and example the present invention will be further described:

[0021] Such as Figure 1 to Figure 7 As shown, a deep-sea ball valve control system is characterized in that it includes a hydraulic source (1), an underwater control module (2), an actuator (3), and the actuator (3) includes a drive module (4), a shift fork ( 5) and the return spring (6), the shift fork (5) is installed between the drive module (4) and the return spring (6); wherein the shift fork (5) includes a crank (8), a slider (9), a pin (10), guide block (11), guide rod (12) and output shaft (13), drive module (4) includes the piston (14) with piston rod on the right end, leading screw (15), nut (16); The piston rod at the right end of the piston (14) is parallel to the guide rod (12) and connected with the guide block (11) through the pin shaft (10), the guide block (11) can slide axially along the guide rod (12) and limit the axial displacement, The c...

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Abstract

The invention provides a deep sea ball valve control system comprising a hydraulic source, an underwater control module, and an actuator. The actuator includes a driving module, a shifting fork and areset spring, and the shifting fork is installed between the driving module and the reset spring; the shifting fork includes a crank, a sliding block, a pin shaft, a guide block, a guide rod, and an output shaft; the driving module includes a piston with a piston rod arranged at the right end of the piston, a lead screw, a nut, and the reset spring is a combination spring; the piston rod at the right end of the piston is parallel to the guide rod and is connected to the guide block through the pin shaft, and the guide block can slide axially along the guide rod and limit axial displacement; asliding groove is arranged on the crank, and the sliding block is matched with the sliding groove; a hydraulic drive and an ROV drive separately control the ball valve and are not interfered with eachother; and an oil returning bladder in the underwater control module compensates the pressure change in a cavity. The deep sea ball valve control system is simple in structure and flexible in operation, and the pressure balance can be achieved without setting a pressure compensation device on the actuator.

Description

Technical field: [0001] The invention relates to a valve control system, in particular to a deep sea ball valve control system. It belongs to the field of offshore oil engineering. Background technique: [0002] The underwater ball valve is used in the underwater oil pipeline to control the on-off of crude oil. Since the medium flows directly through the deep-sea ball valve, it largely determines the reliability of the pipeline. As the development of my country's offshore oil continues to advance to the deep sea, the demand for underwater equipment continues to increase. As a connection device for underwater oil pipelines and other underwater equipment, underwater valves are of great significance. In the medium transportation of deep-water pipelines, ball valves have the advantages of low pressure drop and high reliability and have continuously become the first choice for underwater valves. [0003] As an underwater device, it has been monopolized by foreign countries for ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/163F16K31/50F16K31/52
CPCF16K31/1635F16K31/502F16K31/522
Inventor 刘峰陈繁敏董德宝郭树旺王琪古乔榆朱玲
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)