Design method for SCM dual-power low-voltage reversing valve of deep sea underwater Christmas tree

Abstract

The invention provides a design method for a SCM dual-power low-voltage reversing valve of a deep sea underwater Christmas tree. The specific design method comprises the following six steps: determining a design scheme according to an actual use environment, checking and calculating a geometrical dimension, checking and calculating valve body operation force, designing a main valve, checking parameters, and detecting a sample. The design method provided by the invention is reasonable, is high in calculating efficiency and precision, and a design value is more close to an actual use value, so that the reliability of the design work for the dual-power low-voltage reversing valve of an electro-hydraulic control valve set of the deep sea underwater Christmas tree is effectively improved, and therefore, the design method is beneficial for improving the stability and the reliability, in the actual use, of a valve body.

Description

technical field [0001] The invention relates to a design method of a double-electric low-pressure reversing valve, in particular to a design method of a deep-sea underwater oil tree SCM double-electric low-pressure reversing valve. 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 dual-electric low-pressure directional valve is often designed and prepared by modifying the traditional freshwater underwater double-electric low-pressure directional valve or shallow sea underwater double-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 double-electric low-pressure directional valve for deep-sea oil tree and the actual use...

AI Technical Summary

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 dual-electric low-pressure directional valve is often designed and prepared by modifying the traditional freshwater underwater double-electric low-pressure directional valve or shallow sea underwater double-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 double-electric low-pressure directional valve for deep-sea oil tree and the actual use environment, which leads to the failure of the double-electric low-pressure directional valve in the deep-sea environment. In addition, the traditional experience in the design process of double-electric low-pressure reversing valves, 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. Effective verification and verification will cause great trouble to the design work. Therefore, in view of this situation, it is urgent to develop a universal and simple dual-electric low-pressure reversing valve design method to meet the actual use. needs

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