DE19509436A1 - Weighing control for filling pressure gas containers - Google Patents

Weighing control for filling pressure gas containers

Info

Publication number
DE19509436A1
DE19509436A1 DE1995109436 DE19509436A DE19509436A1 DE 19509436 A1 DE19509436 A1 DE 19509436A1 DE 1995109436 DE1995109436 DE 1995109436 DE 19509436 A DE19509436 A DE 19509436A DE 19509436 A1 DE19509436 A1 DE 19509436A1
Authority
DE
Germany
Prior art keywords
filling
curve
gas
control
filling curve
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.)
Granted
Application number
DE1995109436
Other languages
German (de)
Other versions
DE19509436C2 (en
Inventor
Werner Hermeling
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.)
Klaus Altenrath Elektronische Waegetechnik 42369
Original Assignee
Messer Griesheim GmbH
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 Messer Griesheim GmbH filed Critical Messer Griesheim GmbH
Priority to DE1995109436 priority Critical patent/DE19509436C2/en
Publication of DE19509436A1 publication Critical patent/DE19509436A1/en
Application granted granted Critical
Publication of DE19509436C2 publication Critical patent/DE19509436C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/023—Special adaptations of indicating, measuring, or monitoring equipment having the mass as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/013—Carbone dioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0615—Mass or weight of the content of the vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—Pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)

Abstract

The control system regulates the filling of containers with a gas under pressure through weighing. It may be used for CO2 bottles etc. A reference filling curve for the gas being used is established once, for a computer to control the filling action through the filling curve. The filling action is stopped if there is a deviation between the filling curve and the reference curve.

Description

Die Erfindung betrifft ein Verfahren zur Kontrolle des Füllprozesses von Druckgasbehältern mit Gas nach dem Oberbegriff des Anspruches 1.The invention relates to a method for control the process of filling compressed gas containers with gas the preamble of claim 1.

Es gibt Füllprozesse, die aus sicherheitstechnischen Gründen eine besondere Sorgfalt verlangen. So stellen beispielsweise überfüllte CO₂-Flaschen ein großes sicherheitstechnisches Risiko dar. Um dieses Risiko auszuschließen, werden die Flaschen ein zweites Mal gewogen. Bei diesem Verfahren ist jedoch die Möglich­ keit subjektiver Fehler nicht auszuschließen. Deshalb hat man "selbstkontrollierende" Regelsysteme ent­ wickelt. Diese beinhalten nach wie vor ein Restri­ siko. Sie gehen davon aus, daß jeweils eine Wägung der anderen folgt, wobei die nachfolgende Wägung die Richtigkeit der Vorangegangenen bestätigen muß. Ist prozeßbedingt diese Wägung nicht notwendig, liegt hier das Restrisiko.There are filling processes that result from safety-related Reasons require special care. So pose for example overcrowded CO₂ bottles security risk. To this risk exclude the bottles a second time weighed. However, with this method the possibility is possible subjective errors cannot be excluded. That's why you have "self-controlling" control systems wraps. These still include a restriction siko. You assume that each weighing the other follows, the following one  Weighing confirm the accuracy of the previous got to. If this weighing is not necessary due to the process, is the residual risk here.

Der Erfindung liegt die Aufgabe zugrunde, durch stän­ dige interne Kontrolle des Systems jegliches Restri­ siko auszuschließen.The invention is based, by stand internal control of the system any restrictions exclude siko.

Ausgehend von dem im Oberbegriff des Anspruches 1 be­ rücksichtigten Stand der Technik ist diese Aufgabe erfindungsgemäß gelöst mit den im kennzeichnenden Teil des Anspruches 1 angegebenen Merkmalen.Based on the be in the preamble of claim 1 considered state of the art is this task solved according to the invention with those in the characterizing Part of claim 1 specified features.

Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.Advantageous developments of the invention are in specified in the subclaims.

Bei dem erfindungsgemäßen Verfahren erfolgt die Kon­ trolle anhand der Füllkurve. Bei Abweichungen der ak­ tuellen Füllkurve von einer einmal erstellten Refe­ renz-Füllkurve wird der Füllprozeß sofort abgebro­ chen. Überfüllungen sind folglich mit völliger Sicherheit ausgeschlossen.In the method according to the invention, the con troll based on the fill curve. In the event of deviations from the ak current filling curve of a refe once created filling curve, the filling process is stopped immediately chen. Traps are consequently complete Security excluded.

Bei der Befüllung von Behältern nimmt die Masse in Abhängigkeit von der Zeit zu. Die Massenänderung ist vom Füllsystem, der Art der Befüllung und verschie­ denen weiteren systemeigenen Komponenten abhängig. Jedes Füllsystem hat eine für das System charakteri­ stisches Füllkurve. Diese Füllkurve ist in einem vor­ gegebenen Toleranzfeld reproduzierbar. Bewegt sich die aktuelle Füllkurve aus dem Toleranzfeld heraus, muß eine Änderung des Systems, d. h. ein Fehler, vor­ liegen. Über die Füllkurve ist daher die Überwachung eines Füllsystems möglich. Hierzu sind grundsätzlich zwei Wege möglich, die Füllkurve kann nämlich entweder kontrolliert oder prognostiziert werden. Bei beiden Verfahren wird gemäß der Erfindung der Anstieg der Füllkurve berechnet, d. h. die erste Ableitung gebildet. Liegt der Anstieg außerhalb des Toleranzfeldes, muß eine Störung im System vorliegen. Das erfindungsgemäße Verfahren ist insbesondere für elektronisch gesteuerte Füllsysteme gedacht. Diese Systeme gestatten es während des Füllprozesses parallel zur Dosierung eine Kontrollschleife zu fahren, die in vorgegebenen Intervallen den Anstieg der Füllkurve kontrolliert bzw. prognostiziert.When filling containers, the mass takes up Dependence on time too. The mass change is of the filling system, the type of filling and various dependent on the other system components. Each filling system has a characteristic of the system static filling curve. This filling curve is in one given tolerance range reproducible. Is moving the current filling curve from the tolerance field, a change in the system, i. H. a mistake before lie. Monitoring is therefore via the filling curve a filling system possible. This is basically two ways possible, the filling curve can  namely either controlled or predicted will. In both methods according to the invention the slope of the fill curve is calculated, d. H. the first Derivative formed. If the increase is outside the Tolerance field, there must be a fault in the system. The method according to the invention is particularly for electronically controlled filling systems. These Systems allow it during the filling process a control loop parallel to the dosage drive the rise at predetermined intervals controls or predicts the filling curve.

Das erfindungsgemäße Verfahren ist in erster Linie für das Befüllen von Druckgasbehältern mit Gas, ins­ besondere CO₂, geeignet. Es läßt sich jedoch sinngemäß auch für andere Behälter und auch für das Abfüllen von Flüssigkeiten oder Feststoffen anwenden.The method according to the invention is primarily for filling compressed gas tanks with gas, ins special CO₂, suitable. However, it can be analogous also for other containers and also for filling of liquids or solids.

Die Erfindung wird nachfolgend anhand der Befüllung einer Druckgasflasche mit CO₂ beschrieben. Wird die Druckgasflasche mit einem EDV-gesteuerten Füllsystem abgefüllt, erhält der Rechner bestimmte Primärdaten, unter anderem auch die zu befüllende Menge. Der er­ forderliche Fülldruck steht an, die Flasche steht auf einer Waage, welche mit dem Rechner kommuniziert. Der Füllprozeß kann dann gestartet werden. Erfindungsge­ mäß wird in vorher definierten Zeitintervallen die eingefüllte Menge, bzw. Massenänderung abgefragt. Der Rechner errechnet aus Massenänderung und Zeitinter­ vall den Anstieg. Der Anstieg muß in einem vorher fixierten Toleranzfeld liegen. Die Befüllung dauert so lange an, bis das eingelesene Endgewicht erreicht ist. Weicht während der Befüllung der Anstieg so weit ab, daß er außerhalb des Toleranzfeldes liegt, wird der Prozeß sofort abgebrochen, die Anlage schaltet auf Störung. Es werden alle Störungen, egal ob elek­ trischer, elektronischer oder mechanischer Art, in­ nerhalb von 2 Zeitintervallen erkannt. Da diese Zeit­ intervalle vorzugsweise im Millisekunden-Bereich lie­ gen, kann man von einer kontinuierlichen Kontrolle des Füllprozesses sprechen.The invention is based on the filling a compressed gas bottle with CO₂ described. Will the Pressurized gas cylinder with an IT-controlled filling system filled, the computer receives certain primary data, including the quantity to be filled. The he required filling pressure is applied, the bottle stands up a scale that communicates with the computer. Of the The filling process can then be started. Invention Ge according to is defined in previously defined time intervals filled quantity or mass change queried. Of the Computer calculates from mass change and time interval vall the rise. The climb has to be done beforehand fixed tolerance range. The filling lasts until the final weight is reached is. The rise gives way so far during filling  that it is outside the tolerance range the process is stopped immediately, the system switches on disturbance. All faults, regardless of whether elec trical, electronic or mechanical type, in recognized within 2 time intervals. Because this time intervals preferably lie in the millisecond range gene, one can from a continuous control of the filling process.

Claims (4)

1. Verfahren zur Kontrolle des Füllprozesses von Druckgasbehältern mit Gas durch Wiegen, gekenn­ zeichnet durch folgende Merkmale:
  • - einmaliges Erstellen einer Referenzfüllkurve für das betreffende Gas,
  • - Kontrolle des Einhaltens der Füllkurve mittels eines Rechners
  • - Abbruch des Füllvorgangs bei Abweichen der kon­ trollierten Füllkurve von der Referenz-Füllkurve
1. Method for controlling the filling process of pressurized gas containers with gas by weighing, characterized by the following features:
  • - creating a reference filling curve for the gas in question once,
  • - Control of compliance with the filling curve using a computer
  • - Abort the filling process if the controlled filling curve deviates from the reference filling curve
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß zur Kontrolle oder Prognose der Füllkurve deren Anstieg (1. Ableitung) in Zeitintervallen berechnet wird, die wesentlich kleiner als die Gesamtfüllzeit sind, wonach mit Hilfe des so erhaltenen Kontrollwertes laufend über Fort­ führung oder Abbruch der Befüllung entschieden wird.2. The method according to claim 1, characterized, that to control or forecast the fill curve their increase (1st derivative) in time intervals is calculated, which is much smaller than that Total filling time, according to which with the help of the so control value received continuously over fort management or termination of the filling becomes. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das abzufüllende Gas Kohlendioxid ist.3. The method according to claim 1 or 2, characterized, that the gas to be filled is carbon dioxide. 4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Daten der Referenz-Füllkurve in einem an dem Druckgasbehälter angebrachten, ma­ schinenlesbaren elektronischen Datenträger gespeichert sind.4. The method according to any one of claims 1 to 3, characterized, that the data of the reference filling curve in one attached to the compressed gas tank, ma machine-readable electronic data carriers are saved.
DE1995109436 1995-03-16 1995-03-16 Process for controlling the filling process of pressurized gas containers Expired - Fee Related DE19509436C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1995109436 DE19509436C2 (en) 1995-03-16 1995-03-16 Process for controlling the filling process of pressurized gas containers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1995109436 DE19509436C2 (en) 1995-03-16 1995-03-16 Process for controlling the filling process of pressurized gas containers

Publications (2)

Publication Number Publication Date
DE19509436A1 true DE19509436A1 (en) 1996-09-19
DE19509436C2 DE19509436C2 (en) 1998-04-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE1995109436 Expired - Fee Related DE19509436C2 (en) 1995-03-16 1995-03-16 Process for controlling the filling process of pressurized gas containers

Country Status (1)

Country Link
DE (1) DE19509436C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0863387A2 (en) * 1997-03-04 1998-09-09 Messer Griesheim Gmbh Method for controlling the filling process of pressurised-gas containers
DE102008016047B4 (en) 2007-04-02 2019-01-24 Vaillant Gmbh Procedure for level monitoring

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2681934A1 (en) * 1991-09-27 1993-04-02 Automation Mecanique Provencal METHOD AND INSTALLATION FOR FILLING LIQUID GAS BOTTLES AND FOR MONITORING SUCH BOTTLES AFTER FILLING.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2681934A1 (en) * 1991-09-27 1993-04-02 Automation Mecanique Provencal METHOD AND INSTALLATION FOR FILLING LIQUID GAS BOTTLES AND FOR MONITORING SUCH BOTTLES AFTER FILLING.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0863387A2 (en) * 1997-03-04 1998-09-09 Messer Griesheim Gmbh Method for controlling the filling process of pressurised-gas containers
DE19708564A1 (en) * 1997-03-04 1998-09-17 Messer Griesheim Gmbh Process for controlling the filling process of pressurized gas containers
EP0863387A3 (en) * 1997-03-04 1999-07-14 Messer Griesheim Gmbh Method for controlling the filling process of pressurised-gas containers
DE102008016047B4 (en) 2007-04-02 2019-01-24 Vaillant Gmbh Procedure for level monitoring

Also Published As

Publication number Publication date
DE19509436C2 (en) 1998-04-09

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: KLAUS ALTENRATH ELEKTRONISCHE WAEGETECHNIK, 42369

8339 Ceased/non-payment of the annual fee