The FFU ultrasonic flowmeter from SICK proves a superior alternative to mechanical flow measurement in cooling circuits. In process engineering cooling circuits, coolant is lost due to evaporation or tool changing. When these are refilled with water, chemicals have to be added proportionally in order for the coolant to remain chemically and biologically stable and to avoid causing any damage to the pipes and installations.
Optimum proportioning of chemical additives
In open cooling circuits, the cooling agent is trickled down a cooling tower and cooled in this way. In the process the water evaporates, while hardening constituents and salts increasingly concentrate in the remaining water. These must be stabilised by adding chemicals in order to prevent deposits and to build up corrosion protection. Upon reaching a predetermined level of conductivity, part of the cooling medium is elutriated and replaced with fresh water, to which chemicals are again added proportionally. In closed cooling circuits, water loss occurs almost exclusively due to tool changes. In this scenario, evaporation does not take place, which means that an anti-corrosion agent only needs to be added to the cooling water. Whether the system is an open or closed circuit, the process of adding proportionally frequently involves excess consumption of additives. The result is overdosing, which does not achieve any of the desired stabilising or protecting effects.
Compact measurement technology without corrosion risks
In installations developed for automatic proportioning of anti-corrosion additives and hardness stabilisers, the FFU ultrasonic flowmeter from SICK enables non-contact determination of flow volume – doing so independently of the medium transported. Two sensors mounted opposite each other alternately send and receive ultrasonic signals. In case of a still medium, both sensors receive the emitted ultrasonic signals in phase. A flowing medium will result in phase shifting that is proportional to the flow velocity.
“Due to its non-contact functional principle, the FFU is, without any mechanical component touching the medium, corrosion-free and resistant against scale and salt deposits. Therefore, it is suited for all water qualities and represents to us the appropriate sensor solution,” says Rainer Kosub from Dülk & Kosub. “Because of its compact design and versatile installation options, the FFU is suited in the best possible way for use in our systems.”
Direct benefits to the company and the environment
The FFU ultrasonic flowmeter from SICK ensures that the amount of cooling liquid supplied to the installation is a precisely known quantity. In this way, the metering pump can establish the proper cooling water to chemicals ratio, avoiding overdosage. The savings in additives not only lower the plant operator’s overheads but they also reduce the burden on the environment.
Inline process solutions for gold mining Anton Paar
Flow Measurement & Control
[Sponsored] The extraction and processing of gold ore requires precision and efficiency to maximise yield and minimise losses. Automation and continuous monitoring of critical process steps are essential to ensure optimal production. Anton Paar offers advanced inline measurement solutions which enable full automation and real-time monitoring of key steps in gold extraction and processing.
Read more...Magnetic-inductive flow sensor ifm - South Africa
Flow Measurement & Control
The SMF magnetic-inductive flow sensor revolutionises liquid and creamy flow measurement. With IO-Link, it enables digital data transmission, eliminating blind spots in production.
Read more...Hygienic flow measurement for the food industry ifm - South Africa
Flow Measurement & Control
With the SMF magnetic-inductive flow meter, ifm offers a solution for the hygienic flow measurement of media with variable flow rates through a pipe, such as beer, milk or fruit juice.
Read more...Case History 197: Bad reboiler temperature control. Michael Brown Control Engineering
Editor's Choice Flow Measurement & Control
It is very important that reboiler temperature controls operate well in petrochemical refineries, or the product quality can really suffer. I was asked to check such a control in a refinery where they were having problems with one of these controls.
Read more...Precision measurement for ultra-pure water systems Anton Paar
Flow Measurement & Control
[Sponsored] Ultra-pure water (UPW) is essential in industries where even minor contaminants can impact product quality and process integrity. Anton Paar’s L-Cor Coriolis mass flowmeters provide a highly accurate and hygienic solution by directly measuring the mass of the liquid using the Coriolis effect, ensuring a high level of cleanliness.
Read more...Radiometric density measurements Mecosa
Flow Measurement & Control
Radiometric density measurements are used wherever conventional measurement techniques fail. Successful applications can be found in a wide variety of industries, especially where harsh process environments and difficult measuring conditions prevail.
Read more...Battery-powered magmeter
Flow Measurement & Control
The RWEM/D battery-powered electromagnetic flow meter from Royce Water Systems is ideal for water and wastewater systems located at remote sites.
Read more...Precise process and maximum savings with VEGABAR VEGA Controls SA
Flow Measurement & Control
Accurate measurementsof differential pressure is crucial for safety, efficiency and optimising operational processes. For over 40 years, VEGA has supplied industry-leading pressure measurement solutions, establishing itself as a trusted expert with a proven track record in sensor technology.
Read more...Innovative solutions for low flow dosing with high precision Mecosa
Flow Measurement & Control
n the food, pharma, and chemical manufacturing industries, precision and efficiency are of utmost importance. Bronkhorst High-Tech has developed a flexible solution that meets today’s requirements for highly accurate dosing, whether continuous, in ratio, or in batches.
printer friendly version