Fluent material handling – with receiver or receiver coacting mea – Processes – Battery grid pasting
Patent
1991-06-25
1994-06-07
Jacyna, J. Casimer
Fluent material handling, with receiver or receiver coacting mea
Processes
Battery grid pasting
141 83, 141 89, 141 91, 141192, 222 1, 222 52, 222 54, 222148, 137 5, 324439, 324441, 324445, 436 20, 436 24, G01N 2702, G01N 2706, G01N 3314, G05D 2102
Patent
active
053180780
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
Field of the Invention
This invention relates to a process for bottling beers and other beverages from several tanks through a common pipe into which fresh water can be fed, this common pipe leading through valves to the filling station, to the residual beverage tank or to the wastewater pipe.
Statement Of Related Art
In view of the increasing demands being imposed by both national and European legislation, breweries are being increasingly forced to monitor and document the quality of bottled products to an even greater extent. The most important requirement in this regard is to be able to differentiate water, rinse water, various types of beer, and various alcohol-free beverages using industrial measuring instruments. In view of the exacting demands on the final result, reliable measurement has hitherto only been possible to a limited extent in terms of equipment and for reasons of hygiene, because the measuring instrument has to be fully cleanable and sterilizable and also maintenance-free and reliable. In addition, it has to lend itself to streamlined installation in production pipes while the measurement itself has to be geared to the monitoring of beer. Finally, monitoring has to be safely carried out "on-line" in the production process.
DESCRIPTION OF THE INVENTION
Summary of the Invention
According to the invention, these problems are solved in the process mentioned at the beginning in that the conductance of the liquid is measured inductively and, at the same time, its temperature is measured in the common pipe; in that, when the liquid flowing through the common pipe is changed, it is followed only by a liquid which, compared with the original liquid, has a greater conductance difference than the inductively measurable conductance variations of each of the two liquids and in that the valves are opened and closed in dependence upon the measured conductance.
For some years now, conductance measurement has had a firm place in bottle washing machines and in installations for monitoring the concentration of detergent solutions and for media separation of water and detergent solution. However, conductance measurement has never really been introduced as a variable in beer production processes. This is due above all to the fact that, hitherto, conductance measurements have only ever been carried out directly, i.e. galvanically, in beer production processes. The fact that conductance measurement is carried out inductively provides for far greater hygiene and cleanability.
Using this measuring instrument, it is possible to ensure that no water-diluted beers or beers containing residues of detergent solutions are included in the bottling process without too much undiluted and uncontaminated beer being discharged into the wastewater channel.
Since the conductance values of the liquids in question are largely temperature-dependent, the temperature of the particular liquid is determined at the same time. By means of temperature coefficients of the liquids determined in advance, variations in conductance can be corrected manually or automatically on the basis of variations in temperature.
Although a process for determining the concentrations of liquids by inductive conductivity measurement is known from DE-AS 11 58 727, the liquids in question therein are such liquids as, for example, concentrated hydrochloric acid where accuracy and hygiene requirements are not as stringent as in the case of foods. However, the present invention is concerned with beverages. When these beverages are bottled through a common bottling pipe, it is absolutely essential to ensure that a mixture of two beverages or residues of rinsing liquids are not bottled. It is also important to ensure that, after the common pipe has been rinsed with fresh water, no residues of the fresh water are included in the bottling, because this would reduce the concentration of the beverages.
In the prior art, accuracy problems arise, even in the measurement of concentrated acids, when the concentration is measured
REFERENCES:
patent: 3820014 (1974-06-01), Ludt
patent: 4626833 (1986-12-01), Schlaich
patent: 4733798 (1988-03-01), Brady et al.
patent: 4976137 (1990-12-01), Decker et al.
patent: 5156298 (1992-10-01), LaRue
Advances in instrumentation, vol. 41, part 1, 1986, ISA, (Research Triangle Park, N.C., US) K. M. Queeney et al.: "Applications of a Microprocessor-based Electrodeless Conductivity Monitor", pp. 339-352.
Jacyna J. Casimer
Jaeschke Wayne C.
Lang Apparatebau GmbH
Szoke Ernest G.
Wisdom, Jr. Norvell E.
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