DEVICE FOR CONTROLLING GAS FLOW AND ADMIXTURES AMOUNT IN GAS WELLS PRODUCT Russian patent published in 2005 - IPC

FIELD: gas industry.

SUBSTANCE: device has two level comparators, two pulse generators, first, second and third active band filters, first and second piezoceramic detectors of flow pressure pulses. Output of first detector is connected to input of synchronizing low frequency amplifier, output of which is connected to input of first filter, output of which is connected to first input of scaling amplifier, output of which is connected to ADC input, output of which is connected to first input of microprocessor controller, output of which is connected to second input of scaling amplifier. Additionally provided are passive two-mode filter, switchboard and fourth filter. Output of second piezoceramic detector is connected to input of two-mode passive filter, output of which is connected to input of fourth filter, output of which is connected to inputs of third and fourth filters, outputs of which are connected to inputs of first and second level comparators, outputs of which are connected to inputs of first and second pulse generators, outputs of which are connected to first and second switchboard inputs, output of which is connected to second input of controller, second output of which is connected to third input of switchboard.

EFFECT: higher efficiency and precision.

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