Deep sea Christmas tree electric-hydraulic control valve unit single electricity low pressure reversing valve designing method

Abstract

The invention provides a deep sea Christmas tree electric-hydraulic control valve unit single electricity low pressure reversing valve designing method.The method comprises the specific steps of determining the design scheme according to the actual using environment, verifying and calculating geometric dimensions, verifying and calculating valve body operation stress, conducting reexamination and verification and the like.The design method is reasonable and high in calculation efficiency and precision, design value is closer to actual use value, reliability of design work of a deep sea Christmas tree electric-hydraulic control valve unit double-electricity low pressure reversing valve is effectively improved, and thereby it is helpful to improve stability and reliability of a valve body in actual use process.

Description

technical field [0001] The invention relates to a design method for a single-electric low-pressure reversing valve, in particular to a design method for a single-electric low-pressure reversing valve of a deep-sea oil tree electro-hydraulic control valve group. Background technique [0002] At present, in the development of deep-sea oil and gas resources, deep-sea submerged Christmas tree equipment is widely used and plays a vital role in the development of deep-sea oil and gas resources. The single-electric low-pressure directional valve is often designed and prepared by modifying the traditional freshwater underwater single-electric low-pressure directional valve or shallow sea underwater single-electric low-pressure directional valve through empirical formulas, although it can meet the needs of deep-sea environments to a certain extent. However, there is a large error between the operating technical parameters of the single-electric low-pressure reversing valve for deep-s...

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Problems solved by technology

[0002] At present, in the development of deep-sea oil and gas resources, deep-sea submerged Christmas tree equipment is widely used and plays a vital role in the development of deep-sea oil and gas resources. The single-electric low-pressure directional valve is often designed and prepared by modifying the traditional freshwater underwater single-electric low-pressure directional valve or shallow sea underwater single-electric low-pressure directional valve through empirical formulas, although it can meet the needs of deep-sea environments to a certain extent. However, there is a large error between the operating technical parameters of the single-electric low-pressure reversing valve for deep-sea oil tree and the actual use environment through design and preparation in this way, which leads to the failure of the single-electric low-pressure reversing valve in the deep sea environment. In addition, the traditional experience in the design process of single electric low-pressure reversing valve, on the one hand, the calculation accuracy is seriously insufficient, on the other hand, the calculation efficiency is relatively low, and at the same time, it is impossible to calculate the design structure Carrying out effective check and verification will also cause great trouble to the design work. Therefore, in view of this situation, it is urgent to develop a universal and simple valve body design and preparation method to meet the needs of actual use.

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