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    GAS NETWORK AND METHOD FOR THE SIMULTANEOUS DETECTION OF LEAKS AND OBSTRUCTIONS IN A GAS NETWORK UNDER PRESSURE OR VACUUM
    5.
    发明公开
    GAS NETWORK AND METHOD FOR THE SIMULTANEOUS DETECTION OF LEAKS AND OBSTRUCTIONS IN A GAS NETWORK UNDER PRESSURE OR VACUUM 审中-公开

    公开(公告)号：EP4123282A1

    公开(公告)日：2023-01-25

    申请号：EP22191206.6

    申请日：2019-11-26

    申请人： Atlas Copco Airpower, Naamloze Vennootschap

    发明人： GEUENS, Philippe ,  LOUARROUDI, Ebrahim

    IPC分类号： G01M3/28 ,  F15B19/00 ,  F17D5/00 ,  F17D5/06

    摘要： Method for the simultaneous detection, localization and quantification of leaks (13a) and obstructions (13b) in a gas network (1) under pressure or vacuum; the gas network (1) comprising:
    - one or more sources (6) of compressed gas or vacuum;
    - one or more consumers (7) or consumer areas of compressed gas or vacuum applications;
    - pipelines (5) or a network (4) of pipelines (5) to transport the compressed gas or vacuum from the sources (6) to the consumers (7), consumer areas or applications;
    - a plurality of sensors (9a, 9b, 9d) providing one or more physical parameters of the gas at different times and locations within the gas network (1);
    characterized in that the gas network (1) is further provided with a number of controllable or adjustable relief valves (10a), a number of controllable or adjustable throttle valves (10b) and possibly one or a plurality of sensors (9c) capable of monitoring the status or state of the relief valves (10a) and/or throttle valves (10b) and that the method comprises the following steps:
    - a training phase (16), in which a mathematical model is established between the measurements of a first group of sensors (9a, 9b, 9c, 9d) and a second group of sensors (9a, 9b, 9c, 9d), based on different measurements of these sensors (9a, 9b, 9c, 9d), wherein the controllable or adjustable relief valves (10a) and throttle valves (10b) are controlled in a predetermined sequence and according to well-designed scenarios to generate leaks (13a) and obstructions (13b) respectively;
    - an operational phase (17), in which the mathematical model established between the measurements of the first group of sensors (9a, 9b, 9c, 9d) and the second group of sensors (9a, 9b, 9c, 9d) is used to detect, locate and quantify leaks (13a) and obstructions (13b) in the gas network;
    wherein the operational phase (17) comprises the following steps:
    - controlling, if necessary, the relief valves and the throttle valves in a predetermined order and according to well-designed scenarios;
    - reading out the first group of sensors (9a, 9b, 9c, 9d);
    - based on these readout measurements, calculating or determining the value of the second group of sensors (9a, 9b, 9c, 9d) with the help of the mathematical model;
    - comparing the calculated or determined values of the second group of sensors (9a, 9b, 9c, 9d) with the read values of the second group of sensors (9a, 9b, 9c, 9d) and determining the difference between them;
    - determining whether there is a leak (13a) and/or an obstruction (13b) in the gas network on the basis of the aforementioned difference and any of its derivatives;
    - generating an alarm if a leak (13a) or obstruction (13b) is detected and/or determining the location of the leak (13a) and/or obstruction (13b) and/or determining the flow rate of the leak (13a) and/or the degree of obstruction of the obstruction (13b) and/or generating the leakage and/or obstruction cost.

    GAS NETWORK AND METHOD FOR DETECTING OBSTRUCTIONS IN A GAS NETWORK UNDER PRESSURE OR UNDER VACUUM
    6.
    发明公开
    GAS NETWORK AND METHOD FOR DETECTING OBSTRUCTIONS IN A GAS NETWORK UNDER PRESSURE OR UNDER VACUUM 审中-公开

    公开(公告)号：EP4105544A1

    公开(公告)日：2022-12-21

    申请号：EP22187851.5

    申请日：2019-11-26

    申请人： Atlas Copco Airpower, Naamloze Vennootschap

    发明人： LOUARROUDI, Ebrahim ,  GEUENS, Philippe

    IPC分类号： F17D5/00 ,  F17D5/02 ,  G01M3/28

    摘要： Method for detecting obstructions (13) in a gas network (1) with sensors (9a, 9b, 9d) which determine the physical parameters of the gas, wherein the gas network (1) comprises controllable throttle valves (10) and with state sensors (9c) which can register the status of throttle valves (10), wherein the method comprises the following steps:
    - a training phase (16) in which a mathematical model is established between the measurements of sensors (9a, 9b, 9c, 9d) in which one or a plurality of adjustable throttle valves (10) are controlled to generate obstructions (13);
    - an operational phase (17) in which the mathematical model established between the measurements of the first group of sensors and the second group of sensors (9a, 9b, 9c, 9d) is used to detect obstructions (13) in the gas network (1);
    wherein the operational phase (17) comprises the following steps:
    - calculate the reading of the first group of sensors (9a, 9b, 9c, 9d) and the value of the second group of sensors (9a, 9b, 9c, 9d) using the mathematical model;
    - determine the difference between the calculated and read values;
    - determine the existence of an obstruction (13) on the basis of the aforementioned difference.