Pressure exchanger for liquids
OwnerLeif J. Haugeinventor
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Abstract
A pressure exchanger for transfer of pressure energy from a liquid flow of one liquid system to a liquid flow of another liquid system includes a housing (1) with inlet and outlet ducts forming pairs of ducts for each liquid flow. A cylindrical rotor (8) is rotably arranged in the housing (1), the rotor having a number of axial bores adapted to sequential connection with the passages and thus alternately carry liquid of high pressure of the respective systems. According to the invention the duct openings facing the rotor (8) are found approximately as a segment with a control angle of 180.degree. and a partition wall is formed between these openings. These large openings permit fast liquid flows which fluctuate only to a slight extent.
Claims7
Pressure exchanger for transfer of pressure energy from a liquid flow of one liquid system to a liquid flow of another liquid system, comprising a housing (1) with an inlet- and an outlet duct (12, 13 resp. 14, 15) for each liquid flow, and a cylindrical rotor (8) arranged in the housing (1) and adapted to rotation about its longitudinal axis, and provided with a number of passages or bores (9) extending parallel to the longitudinal axis and having an opening at each end, the inlet- and outlet ducts of the liquid systems forming pairs of ducts provided on respective sides of the rotor (8), and the bores of the rotor (8) being adapted to such connection with the inlet- and outlet ducts of the housing that they alternately carry liquid under high pressure and liquid under low pressure of the respective systems during rotation of the rotor, characterized in that the inner openings of the ducts, i.e. the openings being close to the rotor, are formed approximately as a segment of a circle with a central angle of 180.degree., and that a partition wall is formed between these openings of each pair of ducts.
Dependencies are inferred from the claim text.