초록 ▼

A pump for the transporting of fluids and/or of mixtures of fluids includes a housing (1) and at least one restrictor gap seal which is provided in the housing (1) to reduce the pressure in a restrictor gap along a rotatable part (2) of the pump, wherein the restrictor gap seal is formed as a brush

A pump for the transporting of fluids and/or of mixtures of fluids includes a housing (1) and at least one restrictor gap seal which is provided in the housing (1) to reduce the pressure in a restrictor gap along a rotatable part (2) of the pump, wherein the restrictor gap seal is formed as a brush seal arrangement (8). The brush seal arrangement (8) contains one or more individual brush seals (8') which include as sealing members a plurality of sealingly arranged fibers, bristles and/or wires (8a) which are distributed and fastened in ring form and whose free ends extend towards the surface to be sealed.

대표청구항 ▼

The invention claimed is: 1. A pump for the transporting of fluids and/or of mixtures of fluids with a proportion of solid material and for a pressure ranging from 3 to 320 bar comprising a housing (1), a shaft (2) and at least one restrictor gap seal which is provided in the housing (1) to seal th

The invention claimed is: 1. A pump for the transporting of fluids and/or of mixtures of fluids with a proportion of solid material and for a pressure ranging from 3 to 320 bar comprising a housing (1), a shaft (2) and at least one restrictor gap seal which is provided in the housing (1) to seal the shaft with respect to the housing, wherein the restrictor gap seal is formed as a brush seal arrangement (8.1-8.3) which contains one or more individual brush seals (8') which include as sealing members a plurality of sealingly arranged sealing members selected from the group consisting of, bristles, wires, and combinations thereof (8a) which are distributed and fastened in ring form, wherein the sealing members extend towards at least one of the shaft and a shaft protection sleeve fitted to the shaft and to an axial stop on the shaft. 2. A pump in accordance claim 1, wherein the sealing members of the brush seal (8') are flexible. 3. A pump in accordance with claim 1, wherein the length of the sealing members of the brush seal (8') is predetermined such that they can be ground to a suitable length by the rotatable part (2, 10). 4. A pump in accordance with claim 1, wherein the brush seal arrangement (8) includes a section (6) through which flows a fluid selected from the group consisting of a blocking fluid, a flushing fluid, and combinations thereof. 5. A pump in accordance with claim 4, wherein the fluid has a lower temperature than the transported fluids and/or mixtures of fluids with a proportion of solid material in order to achieve a cooling effect. 6. A pump in accordance with claim 1, wherein a plurality of brush seals (8') of the brush seal arrangement (8) are arranged next to one another as a pack. 7. A pump in accordance with claim 1, wherein the pump is designed for the transporting of multiphase mixtures. 8. A pump in accordance claim 1, wherein the sealing members of the brush seal (8') are fastened flexibly. 9. A pump in accordance claim 1, wherein the sealing members of the brush seal (8') are arranged at an acute angle to the surface of the rotatable part (2, 10) and the tip of the angle extends in the running direction (12) of the rotatable part. 10. A pump for the transporting of fluids and/or of mixtures of fluids with a proportion of solid material comprising a housing (1) a rotatable relief piston (10) for axial thrust compensation, and at least one restrictor gap seal provided in the housing (1) to seal the balancing piston with respect to the housing, and wherein the restrictor gap seal is formed as a brush seal arrangement (8, 8.1-8.3) which contains one or more individual brush seals (8') including as sealing members a plurality of sealingly arranged sealing members selected from the group consisting of bristles, wires (8a), and combinations thereof, which are distributed and fastened in ring form and whose free ends extend towards the surface to be sealed.