Mechanical seal arrangement

Abstract

The present invention relates to a mechanical seal arrangement configured for sealing at a rotating component (22), comprising: a mechanical seal (2) having a rotating slide ring (3) with a sliding surface (3a) and a stationary slide ring (4) with a sliding surface (4a), which define a sealing gap (5) between the sliding surfaces (3a, 4a), wherein the rotating slide ring (3) and the stationary slide ring (4) are produced from an electrically conductive material, wherein the rotating slide ring (3) is electrically connected to the rotating component (22), and a monitoring device (6) comprising an electrical circuit (7), a measuring unit (60) and an evaluation unit (61), wherein the electrical circuit (7) comprises a first line (71) which electrically connects the stationary slide ring (4) to a voltage source (70), a second line (72) which electrically connects the rotating component (22) to the voltage source (70), and a capacitor (73), wherein the capacitor (73) is configured as a plate capacitor, wherein the plate capacitor is formed by the rotating slide ring (3) and the stationary slide ring (4), wherein the measuring unit (60) is configured for acquiring changes of electrical variables of the electrical circuit (7), and wherein the evaluation unit (61) is configured for performing an evaluation of the electrical variables acquired by the measuring unit (60).

Dependencies are inferred from the claim text.