More efficiency and less product waste in food production
Strict quality and hygiene regulations must be adhered to in food and beverage production. Therefore, production plants need to be cleaned regularly when changing over batches or products. At the same time, the production process should, however, be carried out as efficiently as possible. The FLOWave flowmeter from Bürkert Fluid Control Systems now offers extended functions, including the extremely fast and precise detection of media changeovers. As a result, production steps can be clearly separated from each other and waste can be reduced without negatively impacting on hygiene.
The FLOWave flowmeter (image) enables the precise detection of changeovers between different liquid types during food production. Especially in rinsing processes, rapid differentiation between product and rinsing water ensures efficient process control and a high level of quality. The device thus continuously measures the temperature-independent density factor. Based on this measured value, valuable products such as milk can be quickly and reliably differentiated from the cleaning liquid. Compared to conventional time-controlled processes, product waste can be minimised and costs saved. In addition, the amount of waste water treatment required is reduced as less product enters the waste water.
Reliable media changeover for beer and pre-mixed alcoholic beverages
The flowmeter works according to the SAW method (Surface Acoustic Waves). This patented technology can also be used to measure the transition between beer or pre-mixed alcoholic beverages and water. FLOWave utilises the propagation speed of the surface acoustic waves in the liquid for this purpose. The speed increases with the addition of alcohol and sugar. This also leads to an increase in the density factor of the liquid compared to water. However, the actual density of the liquid hardly changes depending on the alcohol and sugar content, since sugar increases the density while alcohol reduces it. The transition between beer or pre-mixed alcoholic beverages and water is therefore often very difficult to measure with conventional density meters.
Measuring relevant fluidic parameters with one device
The density factor not only indicates the media changeover between product and water, it also differentiates between liquids with varying contents of sugar. The SAW technology allows additional data to be obtained from the medium. In addition to the temperature, the flowmeter automatically detects possible gas bubbles and outputs the values in percentage terms. Possible process faults can thus be eliminated quickly and effectively.
SAW technology – hygienic and low-maintenance
SAW technology does not require sensor elements in the measuring tube. This means there are no pressure drops, sealing problems or dead spaces that would otherwise interfere with cleaning. The sensors thus meet the highest hygiene standards and facilitate the qualification and validation of production and cleaning processes. The Bürkert device platform EDIP (Efficient Device Integration Platform) guarantees simple transmission of FLOWave sensor data to all common fieldbuses. The maintenance-free, lightweight and yet robust meters can be mounted in any position.
Bürkert Fluid Control Systems is one of the world’s leading manufacturers of measuring, control and regulating systems for liquids and gases. Bürkert products are used in a wide range of industries and applications – ranging from breweries and labs to medical, bio-engineering and aerospace technology. With a portfolio of more than 30,000 products, Bürkert is the only supplier to offer all fluid control system components, from solenoid valves to process and analytical valves, from pneumatic actuators to sensors.
With its headquarters in Ingelfingen in southern Germany, the company has a wide-ranging sales network in 36 countries and more than 2,500 employees worldwide. Bürkert continuously develops customized solutions and innovative products at its five Systemhaus locations in Germany, China, and the USA, and in four research centers.
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