MECHANICAL FACE SEAL ASSEMBLY, IN PARTICULAR FOR HOT MEDIA, AND PUMP ASSEMBLY

The invention relates to a mechanical face seal assembly for sealing on a rotating component (21), comprising a mechanical face seal (2) which has a rotating slide ring (3) and a stationary slide ring (4), which define a sealing gap (5) between their sliding surfaces (3a, 4a); and comprising a circulating conveying device (7) which is arranged adjacently to the rotating slide ring (3). The circulating conveying device (7) comprises a circulating line (19), in which a cooling device (20) for cooling the circulated fluid is arranged, a circulating rotor (8) and a hollow cylindrical housing (9). The circulating line (19) leads to a space (6) in the region of the sealing gap (5) of the mechanical face seal (2). The hollow cylindrical housing (9) has an inner lateral surface (11) and an outer lateral surface (12). A conveying channel (10) is provided on the outer lateral surface (12), which conveying channel is formed from a starting region (13) to an end region (14) along the outer lateral surface (12). The starting region (13) of the conveying channel (10) is separated from the end region (14) by a separating web (15). A plurality of supply openings (16) are provided in the hollow cylindrical housing (9), which supply openings lead from the inner lateral surface (11) into the conveying channel (10). A single outlet opening (17) is provided in the end region (14). La invención se refiere a una disposición de sello mecánico para el sellado en un componente rotatorio (21), que comprende un sello de anillo deslizante (2) que tiene un anillo deslizante rotatorio (3) y un anillo deslizante estacionario (4), los cuales definen un intersticio de sellado (5) entre las superficies deslizantes (3a, 4a) de los mismos, un impulsor de circulación (7) dispuesto adyacente al anillo deslizante rotatorio (3), en donde el impulsor de circulación (7) comprende una línea de circulación (19) en la que se disponen un dispositivo de refrigeración (20) para refrigerar el fluido circulante, un rotor de circulación (8) y una carcasa cilíndrica hueca (9), en donde la línea de circulación (19) conduce a una cavidad (6) en la región del intersticio de sellado (5) del sello de anillo deslizante (2), en donde la carcasa cilíndrica hueca (9) comprende una superficie de cubierta interior (11) y una superficie de cubierta exterior (12) y en donde se proporciona un canal conductor (10) en la superficie de cubierta exterior (12), canal conductor (10) este que se forma a lo largo de la superficie