EP3903248A1 - Procédé de détermination et de surveillance de la consommation de gaz dans un réseau de gaz sous pression ou sous vide et réseau de gaz - Google Patents

Procédé de détermination et de surveillance de la consommation de gaz dans un réseau de gaz sous pression ou sous vide et réseau de gaz

Info

Publication number
EP3903248A1
EP3903248A1 EP19832195.2A EP19832195A EP3903248A1 EP 3903248 A1 EP3903248 A1 EP 3903248A1 EP 19832195 A EP19832195 A EP 19832195A EP 3903248 A1 EP3903248 A1 EP 3903248A1
Authority
EP
European Patent Office
Prior art keywords
gas
sensors
consumer
consumers
network
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19832195.2A
Other languages
German (de)
English (en)
Inventor
Philippe GEUENS
Ebrahim LOUARROUDI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atlas Copco Airpower NV
Original Assignee
Atlas Copco Airpower NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Atlas Copco Airpower NV filed Critical Atlas Copco Airpower NV
Priority claimed from PCT/IB2019/060291 external-priority patent/WO2020136476A1/fr
Publication of EP3903248A1 publication Critical patent/EP3903248A1/fr
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/20—Administration of product repair or maintenance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
    • G01D18/002—Automatic recalibration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D4/00—Tariff metering apparatus
    • G01D4/002—Remote reading of utility meters
    • G01D4/004—Remote reading of utility meters to a fixed location
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/06—Energy or water supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D2204/00—Indexing scheme relating to details of tariff-metering apparatus
    • G01D2204/10—Analysing; Displaying
    • G01D2204/18—Remote displaying of utility meter readings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/30—Smart metering, e.g. specially adapted for remote reading

Definitions

  • the current invention relates to a method for determiningthe air consumption in a gas network under pressure orvacuum. More specifically, the invention is intended to reliablydetermine the gas consumption of the consumers of a gasnetwork.
  • Gas hereinmeans for example air, but not necessarily. Butalso nitrogen or natural gas are possible.
  • This gas network can be under pressure, where the consumerscan be pneumatic tools, or under vacuum, for example, wherethe consumers are applications that require a vacuum.
  • Aconsumer canbe an individual consumer as well as a so-calledconsumer area or a group of individual consumers. It is useful to know the consumption of the differentconsumers in a reliable, fast and correct way, so that thesupply of gas can be adjusted to the consumption or so thatirregularities can be detected quickly.
  • Flow and cumulative flow sensors are already known, whichcan measure the flow and gas consumption of a consumer. However, it has been found that these sensors are not alwaysreliable, i.e. even in stationary conditions, the flow rate provided by the source or sources is not always equal to the sum of the flow rate consumed by the different consumers .
  • This invention aims at solving at least one of the aforementioned and other disadvantages by providing a reliable method for determining gas consumption in a gas network.
  • This invention has a method for determining and monitoring gas consumption in a gas network under pressure or vacuum; the gas network comprising: - one or more sources of compressed gas or vacuum;
  • sensors which determine one or more physical parameters of the gas at different times and locations in the gas network, where these sensors comprise at least a number of flow sensors, which measure the flow of the gas taken by the consumers, consumer areas or applications;
  • the gas network may be provided with additional sensors capable of recording the state or status of the sources, consumers, consumer areas or applications and that the method comprises the following steps;
  • an operational phase in which the flow and/or volume of gas consumed by each consumer, consumer area, or possibly by the leaks/non-recorded consumers, is calculated or determined using a cumulative algorithm and a predefined, adjustable time horizon T; an output phase, in which the calculated or determined flow and/or gas volume consumed by each consumer, consumer area, application, or possibly the leak/non-recorded consumer is displayed.
  • the aforementioned state sensors can detect, whether the source, consumer or consumer area, for example, is on or off.
  • the aforementioned adjustable time horizon T is for example an hour, day or week.
  • An advantage is that such a method makes it possible to determine the actual consumption of consumers, or possible leaks or unregistered consumers in the gas network.
  • unregistered consumers can occur unconsciously in the event of an expansion of an existing gas network.
  • leaks can occur in the network itself and not only at the sources or consumers, for example .
  • the sensors are also calibrated so that the measurements of the sensors, in particular the flow sensors, are accurate and comply with the "mass in - mass out” principle.
  • the sensors shall include at least one pressure sensor and at least one temperature sensor in the vicinity of the flow sensor.
  • the mass flow rate can be derived from the aforementioned pressure sensors, temperature sensors and the volumetric flow rate.
  • the method comprises the step of generating a message when the consumption of a particular consumer and possibly the leak has reached a set, maximum value. On the basis of such a notification or alarm, appropriate or necessary actions can be taken.
  • the sensors are calibrated during operation or by means of an in-situ self-calibration.
  • the invention also concerns a gas network under pressure or under vacuum; the gas network is at least provided with:
  • a plurality of sensors which determine one or more physical parameters of the compressed gas at different times and locations in the gas network, where these sensors comprise at least a number of flow sensors, which measure the flow of the gas taken by the consumers, consumer areas or applications; with the characteristic that the gas network is further provided with: possibly one or a plurality of sensors that show the state of the sources, consumers, consumer areas or applications;
  • figure 1 schematically shows an arrangement in accordance with the invention
  • figure 2 shows a schematic flowchart of the method in accordance with the invention.
  • the gas network 1 in figure 1 comprises mainly a source side 2, a consumer side 3 and a network 4 of pipelines 5 between the two.
  • the gas network 1 in this case is a gas network 1 under pressure.
  • the gas may be air, oxygen or nitrogen or any other non-toxic and/or hazardous gas or mixture of gases.
  • the source side 2 comprises a number of compressors 6, in this case three, which generate compressed air.
  • the consumer s e 3 contains a number of consumers 7 of compressed air and in this case also three.
  • the compressed air is routed through the network 4 of pipelines 5 from the compressors 6 to the consumers 7.
  • This network 4 is in most cases a very complex network of pipelines 5.
  • Figure 1 shows this network 4 in a very schematic and simplified way.
  • the network 4 of pipelines 5 consists of a large number of pipelines 5 that connect the consumers 7 in series and in parallel with each other and with the compressors 6. It is not excluded that a part of the network 4 adopts or comprises a ring structure.
  • the gas network 1 may also be provided with a pressure vessel 8, with all compressors 6 in front of this pressure vessel 8. In this case, it is preferable to also measure the pressure in the pressure vessel in order to correct the "mass in - mass out" principle for large, concentrated volumes. It is not excluded that there may be one or more pressure vessels 8 downstream of the gas network 1.
  • components 18, such as filters, separators, atomizers and/or regulators, can also be provided in the gas network 1. These components 18 can be found in different combinations and can be located near the buffer vessel 8 as well as close to the individual consumers 7 or the consumer areas .
  • Network 4 also includes a number of sensors 9a, 9b, 9c, which are located at different locations in network 4.
  • the figure shows two pressure sensors 9b and one temperature sensor 9c, which measure the pressure, respectively the temperature at different locations in the network 4.
  • sensors 9a, 9b and temperature sensors 9c are not fixed for the invention and there could also be more or less sensors 9a, 9b, 9c of each type present.
  • sensors 9a, 9b, 9c may be used to determine one or more of the following physical parameters of the gas: differential pressure, gas velocity or humidity.
  • Differential pressure sensors should preferably be placed over the aforementioned components 18.
  • Humidity and temperature sensors should preferably be mounted on the inlet/outlet of the compressors 6 and the consumers 7.
  • these additional sensors 9a, 9b, 9c are not all comprised in the gas network 1, but it goes without saying that this is also possible. Especially in more extensive and complex gas networks 1 such sensors can be used.
  • sensors 9a, 9b, 9c which measure the physical parameters of the gas
  • sensors 9d there are also a number of sensors 9d, or 'state sensors 9d', which are located in the vicinity of compressors 6, consumers 7 or consumer areas.
  • these sensors 9d are part of the consumers 7 itself, which is referred to as smart consumers or smart connected pneumatic devices.
  • the gas network 1 is further provided with a data acquisition control unit 10 to collect data from the aforementioned sensors 9a, 9b, 9c, 9d.
  • sensors 9a, 9b, 9c, 9d determine or measure the physical parameters of the gas and the state of the compressors 6, consumers 7 or consumer areas, and send this data to the data acquisition control unit 10.
  • the gas network 1 is further provided with a computing unit 11 for processing the data from sensors 9a, 9b, 9c, 9d, wherein the computing unit 11 will be able to carry out the method in accordance with the invention for determining and monitoring the gas consumption in a gas network, as explained below.
  • the aforementioned computing unit 11 can be a physical module which is a physical part of the gas network 1. It cannot be excluded that the computing unit 11 is not a physical module, but a so-called cloud-based computing unit 11, which may or may not be connected wirelessly to the gas network 1. This means that the computing unit 11 or the software of the computing unit 11 is located in the 'cloud'.
  • the gas network 1 is further provided with a monitor 12 for displaying or signaling the calculated or determined flow rate q' and/or the gas volume V that is consumed by each consumer 7, consumer area, or possibly the leak.
  • a message or alarm can then be generated on monitor 12 when the consumption of a particular consumer or possibly the leak has reached a set, maximum value.
  • FIG. 2 schematically illustrates the method for determining and monitoring gas consumption in gas network 1 of figure 1.
  • the method comprises a number of steps.
  • a start-up phase 13 is started, during which the aforementioned sensors 9a, 9b, 9c, 9d are calibrated before use.
  • the calibration means for example, that for the flow sensors 9a the relationship will be imposed that in stationary conditions the supplied flow rate q is equal to the sum of the consumed flow rates q' by the consumers 7.
  • the supplied flow q is also measured or calculated.
  • the "mass in - mass out” principle is adapted for large, concentrated volumes, such as for buffer vessels 8 or other pressure vessels, by measuring the pressure in the buffer vessel 8 and taking into account the evolution of the pressure.
  • the second phase relates to an optional leak quantification 14 phase, in which unrecorded consumers or leaks 15 are quantified on the basis of measurements from the aforementioned sensors 9a, 9b, 9c, 9d.
  • the flow rate q' and/or gas volume V is determined or calculated that is consumed by each consumer 7.
  • the consumption of the leak 15, occurring during the leak quantification phase 14, can also be calculated.
  • a cumulative algorithm with a specified, adjustable time horizon T e.g. hour, day, week, is used for this purpose.
  • T e.g. hour, day, week
  • the optional leak quantification phase 14, the operational phase 16 and the output phase 17 are preferably repeated sequentially, with or without a certain time interval t.
  • the aforementioned time interval t can be selected and set depending on the gas network 1.
  • time interval t should not be confused with the aforementioned time horizon T.
  • time horizon T will usually be much larger than the time interval t.
  • FIG. 1 Although in the example of figure 1 it concerns a gas network 1 under pressure, it can also be a gas network 1 under vacuum.
  • Source side 2 then comprises a number of sources of vacuum, i.e. vacuum pumps or similar.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Engineering & Computer Science (AREA)
  • Human Resources & Organizations (AREA)
  • Economics (AREA)
  • Strategic Management (AREA)
  • General Business, Economics & Management (AREA)
  • Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Marketing (AREA)
  • Tourism & Hospitality (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Quality & Reliability (AREA)
  • Operations Research (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • General Health & Medical Sciences (AREA)
  • Primary Health Care (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Emergency Alarm Devices (AREA)
  • Measuring Volume Flow (AREA)

Abstract

L'invention concerne un procédé de détermination de la consommation de gaz dans un réseau de gaz comprenant : - des sources (6); - des consommateurs (7); - des capteurs (9a, 9b, 9c), lesdits capteurs comprenant au moins un certain nombre de capteurs d'écoulement (9a) qui mesurent l'écoulement (q*) du gaz prélevé par les consommateurs (7); caractérisé en ce que le procédé comprend les étapes suivantes : une phase de démarrage (13), au cours de laquelle les capteurs mentionnés ci-dessus (9a, 9b, 9c, 9d) sont étalonnées avant utilisation ; une phase opérationnelle (16), dans laquelle le débit (q') et/ou le volume de gaz (V) consommé par chaque consommateur (7), est/sont calculé(s) à l'aide d'un algorithme cumulatif et d'un horizon temporel réglable prédéfini (T); une phase de sortie (17), dans laquelle le débit calculé ou déterminé (q') et/ou le volume de gaz (V ) consommé par chaque consommateur (7) est/sont affiché(s).
EP19832195.2A 2018-12-27 2019-11-28 Procédé de détermination et de surveillance de la consommation de gaz dans un réseau de gaz sous pression ou sous vide et réseau de gaz Pending EP3903248A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201862785251P 2018-12-27 2018-12-27
BE20195841A BE1026966B1 (nl) 2018-12-27 2019-11-26 Werkwijze voor het bepalen en opvolgen van het gasverbruik in een gasnetwerk onder druk of onder vacuüm en gasnetwerk
PCT/IB2019/060291 WO2020136476A1 (fr) 2018-12-27 2019-11-28 Procédé de détermination et de surveillance de la consommation de gaz dans un réseau de gaz sous pression ou sous vide et réseau de gaz

Publications (1)

Publication Number Publication Date
EP3903248A1 true EP3903248A1 (fr) 2021-11-03

Family

ID=68807931

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19832195.2A Pending EP3903248A1 (fr) 2018-12-27 2019-11-28 Procédé de détermination et de surveillance de la consommation de gaz dans un réseau de gaz sous pression ou sous vide et réseau de gaz

Country Status (2)

Country Link
EP (1) EP3903248A1 (fr)
BE (1) BE1026966B1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3870814B2 (ja) * 2002-03-29 2007-01-24 株式会社デンソー 圧縮エア監視システム
US7228726B2 (en) * 2004-09-23 2007-06-12 Lawrence Kates System and method for utility metering and leak detection
GB2444080B (en) * 2006-11-23 2008-10-08 Validation Ct Gas monitoring system
US20100082293A1 (en) * 2008-09-26 2010-04-01 Compressor Energy Solutions, Inc. Compressed air system monitoring and analysis
US20150346007A1 (en) * 2014-05-27 2015-12-03 Microsoft Corporation Detecting Anomalies Based on an Analysis of Input and Output Energies
US20170108361A1 (en) * 2015-10-18 2017-04-20 Cdi Meters, Inc. Target Flowmeter

Also Published As

Publication number Publication date
BE1026966B1 (nl) 2020-08-13
BE1026966A1 (nl) 2020-08-06

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