DE4340026A1 - Mixture ratio measuring device - Google Patents
Mixture ratio measuring deviceInfo
- Publication number
- DE4340026A1 DE4340026A1 DE19934340026 DE4340026A DE4340026A1 DE 4340026 A1 DE4340026 A1 DE 4340026A1 DE 19934340026 DE19934340026 DE 19934340026 DE 4340026 A DE4340026 A DE 4340026A DE 4340026 A1 DE4340026 A1 DE 4340026A1
- Authority
- DE
- Germany
- Prior art keywords
- alcohol
- sensor
- measured
- thermostat
- temperature
- 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.)
- Withdrawn
Links
- 239000000203 mixture Substances 0.000 title claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000012423 maintenance Methods 0.000 claims abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000005259 measurement Methods 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000011156 evaluation Methods 0.000 claims 3
- 239000007788 liquid Substances 0.000 claims 2
- 238000002360 preparation method Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 238000007645 offset printing Methods 0.000 abstract description 2
- 238000009736 wetting Methods 0.000 abstract 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1826—Organic contamination in water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0054—Devices for controlling dampening
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0011—Sample conditioning
- G01N33/0016—Sample conditioning by regulating a physical variable, e.g. pressure or temperature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0047—Organic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Combustion & Propulsion (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Rotary Presses (AREA)
Abstract
Description
Die Erfindung betrifft ein Meßverfahren zur Bestimmung des Alkoholgehaltes in Vol.% in einem in fließender Bewegung befindlichen Wassergemisch.The invention relates to a measuring method for determining the alcohol content in Vol.% In a water mixture in flowing motion.
Bei bestimmten Produktionsabläufen wird ein Wassergemisch in Abhängigkeit von Temperatur, Härtegrad und anderen Parametern wie z. B. Alkohol benötigt. So beim Offsetdruckverfahren. Da immer bessere Druckergebnisse gefordert werden, werden auch immer höhe re Anforderungen an Maschine und Aggregate gestellt.In certain production processes, a water mixture becomes dependent of temperature, degree of hardness and other parameters such as B. alcohol required. So with the offset printing process. As better and better printing results are required, they are getting higher re demands on machine and aggregates.
Zwangsläufig muß daher auch das Meßverfahren zur Bestimmung des Alkohol gehaltes im Mischwasser verbessert werden. Die bisher angewandten Meßver fahren, wie mittels Spindel, Lufteinblasen innerhalb einer Meßstrecke oder das Aufheizen des Wassergemisches sind nicht mehr ausreichend. Es wurde daher ein neues Verfahren entwickelt, welches alle bisher bekannten Nachteile ver meidet.Inevitably, therefore, the measuring method for determining alcohol content in the mixed water can be improved. The previously used measuring ver drive, such as by means of a spindle, air blowing within a measuring section or that Heating up the water mixture is no longer sufficient. It was therefore developed a new method, which ver all known disadvantages avoids.
Es wird davon ausgegangen, in einer quasi abgeschlossenen Meßkammer durch strömt das Mischwasser, unter Einhaltung eines festgelegten Niveaus, die Meß strecke. Über dem Mischwasserspiegel entsteht ein Alkoholdunst, der dem Alkoholgehalt im Mischwasser entspricht.It is assumed to be in a quasi-closed measuring chamber the mixed water flows, observing a defined level, the measuring route. There is an alcohol vapor above the mixed water level, which Alcohol content in the mixed water corresponds.
Führt man diese Luft mittels Vacuumpumpe, Lüfter oder ähnlichem einem Alko holsensor zu,so könnte man das Ergebnis in Vol.% eichen. Diese Anordnung beinhaltet jedoch Meßfehler.If this air is led by means of a vacuum pump, fan or similar to an Alko fetch sensor, you could calibrate the result in vol.%. This arrangement however contains measurement errors.
Deshalb wurde eine Sensorik entwickelt, die diese Fehler ausschließt.Therefore, a sensor system was developed that excludes these errors.
Das Meßsystem besteht aus einem Gehäuse A. Dieses Gehäuse wird durch eine Trennwand C in zwei Räume aufgeteilt. Die Trennwand C hat eine Öffnung, die die Sensorik D aufnimmt.The measuring system consists of a housing A. This housing is replaced by a Partition C divided into two rooms. The partition wall C has an opening that the sensors D records.
Die Sensorik besteht aus einem Thermostat mit einer bestimmten Masse, den Sensoren und der Elektronik einschließlich eines Mikrocontrollers.The sensor system consists of a thermostat with a certain mass, the Sensors and electronics including a microcontroller.
Die durch das Thermostat erzeugte Warmluft wird über die Entlüftung B abgeführt. Die dadurch entstehende Thermik saugt den Alkoholdunst aus dem Meßraum 2 in den Raum 1 des Gehäuses und durchläuft dabei den Alkoholsensor.The warm air generated by the thermostat is discharged via vent B. The resulting thermals sucks the alcohol vapor from the measuring room 2 into room 1 of the housing and passes through the alcohol sensor.
Durch die Thermik entsteht im Meßraum 2 ein leichter Unterdruck, der die Ver dunstung des Alkohols begünstigt.The thermal creates a slight negative pressure in measuring room 2 , which favors the evaporation of the alcohol.
Schema A: Hier wird der untere Abschluß der Meßkammer durch den Wasser stand der Vorrats-, Misch- und Kühlwanne gebildet.Scheme A: Here is the lower end of the measuring chamber through the water the storage, mixing and cooling trough was formed.
Schema B zeigt die Meßeinrichtung als autarkes System und unterscheidet sich nur im Abschluß des Meßraumes und in der Mischwasserführung.Scheme B shows the measuring device as an autonomous system and differs only at the end of the measuring room and in the mixed water supply.
Claims (20)
- a. Sensor zur Messung des Alkoholgehaltes in Vol.%.
- b. Elektronik für das Thermostat und für die Sensoren.
- c. Mikrocontroller für die Auswertung und Steuerung.
- d. Schnittstelle für 1. Anzeige des Alkoholgehaltes oder 2. Meßwerterfassung.
- a. Sensor for measuring the alcohol content in vol.%.
- b. Electronics for the thermostat and for the sensors.
- c. Microcontroller for evaluation and control.
- d. Interface for 1st display of alcohol content or 2nd measurement value acquisition.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19934340026 DE4340026A1 (en) | 1993-11-24 | 1993-11-24 | Mixture ratio measuring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19934340026 DE4340026A1 (en) | 1993-11-24 | 1993-11-24 | Mixture ratio measuring device |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4340026A1 true DE4340026A1 (en) | 1995-06-01 |
Family
ID=6503318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19934340026 Withdrawn DE4340026A1 (en) | 1993-11-24 | 1993-11-24 | Mixture ratio measuring device |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4340026A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10136130A1 (en) * | 2001-07-27 | 2003-02-20 | Technotrans Ag | Process to calibrate alcoholic content sensor in ambient air for offset printing wetting process |
DE19739371C2 (en) * | 1997-03-29 | 2003-02-20 | Technotrans Ag | Device for measuring and adjusting the alcohol content in the dampening solution for offset printing |
DE19607681B4 (en) * | 1996-02-29 | 2009-07-09 | Fogra Forschungsgesellschaft Druck E.V. | Method and device for continuous measurement and control of the composition of a dampening solution for offset printing |
-
1993
- 1993-11-24 DE DE19934340026 patent/DE4340026A1/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19607681B4 (en) * | 1996-02-29 | 2009-07-09 | Fogra Forschungsgesellschaft Druck E.V. | Method and device for continuous measurement and control of the composition of a dampening solution for offset printing |
DE19739371C2 (en) * | 1997-03-29 | 2003-02-20 | Technotrans Ag | Device for measuring and adjusting the alcohol content in the dampening solution for offset printing |
DE10136130A1 (en) * | 2001-07-27 | 2003-02-20 | Technotrans Ag | Process to calibrate alcoholic content sensor in ambient air for offset printing wetting process |
DE10136130B4 (en) * | 2001-07-27 | 2004-09-16 | Technotrans Ag | Process for measuring the alcohol content in dampening solution for offset printing |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |