METHOD OF DETECTION OF CLEANING DEVICES BEING TRANSPORTED INSIDE A PIPELINE AND INTERFACES OF OIL PRODUCTS THERE Russian patent published in 2006 - IPC F17D5/02 

FIELD: pipeline transportation; transportation of oil and oil processing products by pipelines.

SUBSTANCE: the invention is pertaining to pipeline transportation, in particular, to transportation of oil and oil processing products by pipelines. The method of detection of the of the cleaning devices being transported inside pipelines and the interfaces of the oil products there includes a periodic emission of a probing acoustic pulse signal into a controlled section of the pipeline, reception of the reflected acoustic signals from the controlled section of the pipeline, conversion of the received acoustic signals into electrical signals, formation of a useful signal, measuring and storing of its amplitude, measuring after each emission of the probing signal of the probing time. If at that the amplitude of the useful signal exceeds the first threshold level, then conduct storing of the time of the probing, calculate using M last stored values of the probing time its average value, conduct a sample out of L last values of which and also store, after each measurement of a probing time conduct deduction from L-th average value of the probing time of the first value of sampling and if the modulus of the difference exceeds the defined value, then form and give a signal indicating the start of a fresh consignment of petroleum. The technical result of the invention is that the method allows to expand functionalities of the detection devices used to realize the method, in particular, in addition to detect interfaces of the lots of petroleum, which are transported in one pipeline without use of the separating devices.

EFFECT: the invention allows to expand functionalities of the detection devices used to realize the method, in addition to detect interfaces of the lots of petroleum transported in the same pipeline without use of separating devices.

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