PIPELINE BREAK DETECTION SYSTEM Russian patent published in 2006 - IPC F17D5/06 

FIELD: transport of liquids, gases and other products by pipelines.

SUBSTANCE: invention relates to system and devices for monitoring integrity of pipelines laid on ground and detecting places of break. In proposed system designed for detecting breaks in pipeline containing receiving radio station and electric conductor laid close to pipeline and connected by two ends with ends of pipeline and ac voltage source, receiving radio station is arranged on board of helicopter and it contains series-connected first receiving antenna, first high-frequency amplifier, multiplier second input of which is connected with output of second high-frequency amplifier, narrow-band filter, first phase meter second input of which is connected with output of reference generator and recording unit, series-connected second receiving antenna, second high-frequency amplifier, delay line, phase detector second input of which is connected with output of second high frequency amplifier, and second phase meter, second input of which is connected with output of reference generator, and output is connected to second input of recording unit, third input of which is connected, through distance meter, with output of second high-frequency amplifier. Receiving antennas are arranged on opposite ends of blades of helicopter lifting rotor whose engine is mechanically coupled with lifting rotor and reference generator.

EFFECT: provision of operative detection and location of breaks in main lines at check flight.

2 dwg