Pipeline leak detector with baffles

A device for detecting leaks in a pipeline through which a stream of pressurized fluid flows, and having in combination,

• a. A frame-like structure providing support for a tubular conduit, said conduit extending in an upstream direction and open at its upstream end to the stream, said conduit being closed at its downstream end by a pressure differential sensor element extending transversely of said conduit,
• b. A rod-like element fixed to said structure in axial alignment with, and in spaced relation to said tubular conduit,
• c. A set of baffles comprising a plurality of axially spaced discs fixed to said conduit, said discs being of a slightly lessor diameter than the pipeline in which it is adapted to move with the stream, said baffles defining a narrow annular channel between the outer disc walls and the pipeline interior.
• d. A like set of baffle discs fixed to said rod-like element to provide a pressure drop chamber intermediate the sets of baffles in which said frame-like structure is disposed,
• e. Means for subjecting the exposed side of said sensor to the fluid within said chamber,
• f. And means associated with said sensor for amplifying and recording pressure drops within said chamber as sensed by said sensor.