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 piezoceramic detectors of flow pressure pulses, output of first of which is connected to input of synchronizing low frequency amplifier. Output of synchronizing amplifier is connected to input of first active band filter, output of which is connected to first input of scaling amplifier, output of which is connected to input of ADC. ADC output is connected to first input of microprocessor controller. First output of controller is connected to second input of scaling amplifier. Device also has level comparator, pulse generator, second and third active band filters, while controller is made with product parameters recorders. Additionally provided are two-mode filter, switchboard and fourth active band filter. Output of second piezoceramic detector is connected to input of two-mode passive filter, output of which is connected to input of second active band filter. Output of second filter is connected to inputs of, respectively, third and fourth filters, outputs of which are connected to first and second inputs of switchboard, connected to level comparator input. Output of the latter is connected to input of pulse generator, output of which is connected to second input of controller. Second output of controller is connected to third input of switchboard.

EFFECT: higher precision.

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