Refinery hydrogen pipe network economic-safe collaborative optimization design method considering filling of hydrogen embrittlement inhibitor and electronic equipment

CN121859565APending Publication Date: 2026-04-14DALIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-31
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing technologies struggle to simultaneously consider the constraints of fire radiation consequences and integrity degradation risks such as hydrogen-induced damage in hydrogen pipeline network optimization, and to coordinate modeling with pipeline topology selection and flow allocation. Furthermore, the inhibitor dosing strategy lacks linkage with network operating status, making it difficult to systematically balance risk reduction and cost investment.

Method used

A state-space network superstructure model of a hydrogen utility system is constructed. Combined with an economic-safety mixed integer nonlinear programming model, hydrogen sources, hydrogen-using units, purification and recovery units, and candidate connections are uniformly represented. An inhibitor dosing operator is introduced to optimize the pipeline topology, flow distribution, and risk mitigation measures, forming a collaborative optimization framework.

Benefits of technology

This study achieves the optimal economic and safety solution for hydrogen pipeline networks while meeting safety threshold constraints, reducing the consequences of fire radiation and the risk of hydrogen-induced damage, and improving resource utilization efficiency and system safety.

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Abstract

The invention belongs to the technical field of intrinsically safe chemical process and chemical process system engineering optimization, and discloses a refinery hydrogen pipe network economic-safe collaborative optimization design method considering filling of a hydrogen embrittlement inhibitor and electronic equipment. Acquiring system data and candidate connection parameters of a hydrogen source unit, a hydrogen using unit, a purification / recovery unit and the like, and constructing a supply and demand superstructure model; establishing an economic-safe mixed integer nonlinear programming model, and setting process constraints by taking connection line selection, flow and purity distribution, purification / recovery unit configuration, compression energy consumption and risk mitigation measure configuration as decision variables; fire radiation heat flux constraint related to flow and distance and hydrogen-induced damage / integrity degradation measurement related to hydrogen-rich environment intensity, equivalent length and service period are established, and segmented isolation valves, coating protection and reduction effect of inhibitor addition and cost and risk linkage coupling are carried out; and constructing a collaborative objective function under the unified constraint set, solving the collaborative objective function, and outputting an integrated design result.
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Citation Information

Patent Citations

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