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Modeling and Simulation of Burst Pipe Protection Valves in an Application Specific Context

Updated: May 16

SimulationX Customer Story

Summary of Presentation from 20th ESI SimulationX Conference (2018) Conference Presentation by Dr.-Ing. Dirk Wehner, Hydrive Engineering GmbH

HYDRIVE Engineering used SimulationX system modeling software to analyze conditions that caused correctly manufactured burst pipe protection valves to perform incorrectly. Burst pipe protection valves are a safety feature designed to close a pressurized line if a ruptured hose causes a pressure drop across a hydraulic cylinder.

Despite correct dimensioning, it was observed that the valves do not always correctly function in some cases. The goal of the simulation was to determine what happens inside the valve when incorrect valve performance is observed and identify unknown causal factors for performance optimization.

A model of the valve was created using mechanical and hydraulic components from SimulationX libraries.

And its accuracy validated by comparing pressure drop measurements against hydraulic flow across the valve.

[DE: Messung = EN: Measurement]

The valve model was implemented in various valve-cylinder application configurations (multi-stage, parallel, multiple valves) then simulated, from which were identified three forms of incorrect pipe-break valve performance: no reaction, delayed reaction, and dynamic system reaction.

Modeling and simulating the burst pipe protection valve showed that its incorrect performance depends on the load applied to the cylinder (pressure), resistance and position of the leak in the ruptured pipe, and the configuration of the hydraulic system in which the valve is integrated.

If interested in additional information, please contact us for the full proceedings of the 2018 SimulationX User Conference.

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