| 摘要 |
Apparatus (11) for reducing the pressure in a liquid stream, especially one bearing abrasive particles, comprising at least two tapering cavities (19) each having an inlet (51) directed tangentially of its wider end (20) and an outlet (21) at its narrower end, the two cavities (19) being connected in series in such a way, that in use, the outlet stream from a first of the two cavities (19) is directed to the inlet (51) of the second cavity (19) such that energy in the flowing stream is dissipated and thus the pressure reduced in its passage from the inlet (25) to the first cavity (19) to the outlet (21) from the second cavity (19). A vortex finder (38) may be used to remove lighter components of the stream and additional liquid may be introduced through a passage 45. <IMAGE> |
