"SMART-MONITORING" SYSTEM FOR REMOTE CONTROL OF STATE OF STOP VALVES OF MAIN GAS PIPELINES Russian patent published in 2021 - IPC F17D5/02 F16K31/12 G01M3/24 

FIELD: pipeline valves remote monitoring.

SUBSTANCE: invention relates to remote monitoring of the state of pipeline valves (PV), as well as to monitoring the operating parameters of actuators, for example, a pneumatic-hydraulic valve control drive. The system for remote monitoring of the state of shut-off valves (SOV) of the main gas pipeline with pneumatic or pneumohydraulic control includes at least one control point (CP) equipped with a computer capable of color mnemonic display of information about the state of the SOV of the main gas pipeline, connected by communication channels, at least , with one subsystem, including at least one block of instrumentation and a signal processing unit (SPU) connected to it, configured to receive, register, process signals from instrumentation, including comparison of measured parameters with calculated and/or entered into it memory by threshold values, and transmission to CP. The instrumentation unit includes at least two pulse gas pressure sensors configured to measure the pressure of the pulse gas when opening or closing the shutter SOV, an acoustic sensor configured to monitor the tightness of the shutter and/or the shutter control drive rod, a gas contamination sensor designed to control gas leaks through the housing connectors SOV, at least two flow sensors of high-viscosity material used to ensure the tightness of the seal of the SOV. The SPU is configured to determine the following parameters from the measured value of the pulse gas pressure: gate position, number of gate permutations per unit time, gate travel time from "open" to "closed" position, or gate travel speed; the amount of torque required to move the shutter.

EFFECT: invention ensures the safety of pipeline operation, incl. shut-off, valves due to the diagnosis of its condition with the possibility of detecting at an early stage a leakage of the shut-off element (or gate) of the shut-off valve caused by incl. defects in the sealing system.

6 cl, 1 tbl, 16 dwg