Patent ID: 9500302
Filing Date: 2016-11-22
CPC Classification: A01K,F16L,Y10T

Claim Text:
1. A method for attenuating noise produced by pipes transporting a flow of fluids, gases, particles or combinations thereof, the method comprising: providing a pipe arrangement comprising an inner pipe and an outer pipe, the inner pipe defining an internal inner flow channel which progresses in a direction coincident with the longitudinal axis of the inner pipe, the outer pipe surrounding the inner pipe which progresses in a direction substantially parallel to a longitudinal axis of the inner pipe, thereby defining an outer flow channel between the two pipes, wherein the outer flow channel is substantially parallel to the inner flow channel, establishing a steam flow in and along the inner flow channel, establishing a water flow in and along the outer flow channel, the water flow being adapted to attenuate a noise produced by the steam flow flowing through the inner flow channel, wherein the water flow in and along the outer flow channel is in a direction opposite to the water flow in the inner flow channel, and streaming gas into the water flow to generate a stream of gas bubbles within the water flow.