FIELD: control systems.
SUBSTANCE: present invention relates to a method for controlling an oxygen reduction system. System includes an inert gas source for supplying a gas mixture with a reduced oxygen or inert gas content, respectively, and a pipeline system, which is configured to be connected or fluidly connected to the inert gas source and at least one closed region so as to supply at least a portion of the gas mixture or gas supplied by the inert gas source to at least one closed region. Method comprises the steps of: supplying at least a portion of the gas mixture or gas supplied by the inert gas source to at least one closed region through the pipeline system, so that the oxygen content in the atmosphere of the closed region takes a predetermined or definable value, which is reduced in comparison with the oxygen content in the normal ambient air; leak test is carried out in at least one section of the pipeline system by checking the pressure of the pipeline section subjected to a leakage test using at least a portion of the gas or gas mixture supplied by the inert gas source, wherein the inert gas source comprising a compressor system and a gas separation system located downstream of the compressor system in terms of flow, wherein an initial gas mixture, compressed with the compressor system, is introduced at least intermittently into an inlet of the gas separation system and the compressed initial gas mixture is at least partially separated into various gas components in the gas separation system, so that the gas mixture with a reduced oxygen content and nitrogen-enriched, obtained at the outlet of the gas separation system, for conducting the leak test, either the compressed initial gas mixture supplied by the compressor system or the nitrogen-enriched gas mixture obtained at the outlet of the gas separation system is introduced into the section of the pipeline system to be checked. As a result, the oxygen content in the atmosphere of the closed region assumes the predetermined or definable value, which is reduced in comparison with the oxygen content in normal ambient air.
EFFECT: oxygen reduction system is proposed.
14 cl, 2 dwg
