| 摘要 |
A fluid processing apparatus for use in an elongate passage is provided. It comprises one or more means for applying ultrasonic energy to fluid introduced into the elongate passage, the means for applying ultrasonic energy comprising a vibration member having an inner passage through which fluid can flow, the vibration member being provided within the elongate passage such that an outer passage, in fluid communication with the inner passage within the elongate passage, is formed between an inner surface of the elongate passage and an outer surface of the vibration member, wherein flow constraining means in the form of a tapering funnel is provided in the elongate passage upstream of, and spaced from, the inner passage, for introducing the fluid into the elongate passage and for directing the fluid towards the inner passage.
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