Gas path isolation pressure regulating mechanism

Abstract

The present application provides a gas path isolation pressure regulating mechanism, including a sealed cavity or shell, on which a first interface connected to the gas path of a gas density relay and a second interface connected to the gas path of an electrical device are provided; a retractable cavity is provided in the cavity or shell, one end of which is connected to a plugging member and the other end is connected to a partition member; the plugging member is provided with a first perforation, which is connected to the first interface through a connecting pipe; the partition member is provided with a second perforation to connect the inside of the retractable cavity with the second interface; a driving component is provided in the retractable cavity. During verification, the driving component drives the partition member to move in the second direction to isolate the gas path of the first interface and the second interface, and the driving component drives the plugging member to move in the first direction to change the gas pressure of the retractable cavity, which is used to adjust the pressure rise and fall of the gas density relay, thereby realizing online verification of the gas density relay, and completing the verification without the need for maintenance personnel to go to the site, thereby improving the reliability and efficiency of the power grid.

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