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Skumkontrol & måling

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Charis Technology er førende på markedet med sensorer og systemer til kontrol af skum. Skumsensorerne er udelukkende designet til at detektere skum i vandbaserede og ikke-vandbaserede væsker.

Anvendelser

Skum er et stort problem i mange bioteknologiske og andre industrielle processer.
Typiske anvendelsesområder er produktion af føde- og drikkevarer, tryksværte og maling, vand- og
spildevandsbehandling samt biogasproduktion, hvor sensorerne sidder i reaktorer, inddampere, anlæg
for vacuum køling og aerobe såvel som anaerobe fermentorer. Er der et helt specielt skumproblem i en
industri er Charis i stand til at udvikle både hardware og software for løsning af problemet.

Fordele ved bedre skumkontrol

– Øget gennemløb i produktionen ved at reducere nedetiden
– Reduceret produkt tab
– Tilsætning af antiskum optimeres og omkostninger reduceres
– Reduceret spild og forurening på grund af skum overløb

Skum kontrol – forklaret

Seks powerpoint slides for demonstration af den grundlæggende metode til skum control med Charis skum kontrol system.

Skum kontrolsystemer – produktsortiment

IMA Sensing® technology – giver immunitet overfor tilsmudsning af sensoren

Med den patenterede Multi Action sensing teknologi “IMA Sensing® technology” er Charis sensorer i stand til at skelne mellem de resterende belægninger af skum og produkt, der bygger op på selve sensoren, og det skum, der opstår under processen. Grundet denne unikke teknologi har sensorerne stor nøjagtighed og høj pålidelighed.

Skumsensoren ignorerer den uundgåelige tilsmudsning samtidig med, at den fortsat overvåger skummet. Uanset hvor meget sensoren bliver belagt, eller hvor tæt og klæbrig belægningen end er, gør den unikke konstruktion det muligt af måle skummet under hele procesforløbet

Billedet til højre viser en Charis sensor belagt med en klæbrig masse af skum og produkt. Målestrømmen, der er vist i rødt, strømmer fortsat kun gennem skummet. Den blå linje repræsenterer lækstrømmen som drives af beskyttelseselektroden. Dette gør det muligt for sensoren at fungere, da lækstrømmen måles separat og ikke som en del af skum signalet.

Ofte er det ikke muligt at forhindre opbygning af belægninger, men “IMA Sensing® technology” gør det muligt for sensoren at fungere pålideligt trods omfattende belægning eller tilsmudsning. Du kan se en kort video demonstration af hvordan “IMA Sensing® technology” virker, venligst klik her

Fotografierne til venstre viser en Braun fermentor, der er belagt med produkt. På det forstørrede billede peger den røde pil på sensoren. Det ses, at den er fuldstændig tildækket med materiale, men den var stadig fuld funktionsduelig, da beholderen blev åbnet. Brugeren blev så forbløffet, at han tog et fotografi og sendte det til Charis.

FTA Foam Tendency Analyser

Foam tendency is a measure of the ability of a process liquid to create foam given adequate conditions of aeration or agitation.

The FTA Foam Tendency Analyser is a pre-emptive approach to foam control. Instead of measuring the foam created our FTA can predict that foam will occur in advance and take the appropriate action before any significant build up occurs.

Applications include bearing coolant on turbines where foaming can cause lack of lubrication and damage, and water features such as fountains where the introduction of foaming agents such as liquid soap can prove both costly and messy.

FTA Foam Tendency Analyser with sampling and antifoam pumps

  • The FTA continually samples the process liquid and creates foam inside a small test chamber
    and the foam is then measured. Based on the results, appropiate actions can be taken before
    there is a significant foaming.
  • One sample every 4 min.
  • Sample volume 200 ml
  • Enclosure IP65
  • If required the antifoam pump can be replaced by an intelligent interface to your own
    process controller.

DiFoam Controllers for use with DiFoam sensors

FdiCR DiFoam Controller

  • Rack mounted in a standard 19″ rack
  • Transmit a signal to a process controller or alarm, alternatively to control a pump or valve directly
    to dose antifoam by means of a ‘Delay and Shot’ algorithm

FdiCW DiFoam Controller

  • Wall mounted, encapsulation IP65
  • Transmit a signal to a process controller or alarm, alternatively to control a pump or valve directly
    to dose antifoam by means of a ‘Delay and Shot’ algorithm
  • The optional FCDiW/Z configuration include a Zener barrier for installtion in Ex classified areas.

The SureSense Range

StyFoam Control Systems – for use in water based foam applications

SureSense sensorer

  • The sensor rods are available in various lengths and with a wide range of fittings for mounting in all sizes and types of vessels and fermentors. The construction is in accordance with the FDA guidelines.
  • Sensors are sanitary, and SIP steam sterilisable
  • Mounting fittings Flange, DN25, BSP, or sanitary Tri-clamp.
  • A wide range of steriale fittings are available for adjustable insertion length
  • Insertion lengths up to 4 meters
  • Laboratory sensors with insertion length 150 mm, 250 mm and 400 mm
  • Max. operating temperature 150 oC (peak temp.170 oC)
  • Max. pressure 10 bar

The DiFoam Range

Foam Control Systems – for use with non water-based foam

The DiFoam product range measure and control non-aqueous foams and liquids such as oil, resin and solvents. This foam system differentiate from the SureSense systems by using a technology that is sensitive to the dielectric properties of the media being tested. Applications include resin foam control such as yacht varnish, hydrocarbon foam control, solvent foam control, and level controls in oils and fats such as cocoa butter.

DiFoam Sensors

  • Sensors are hygenic and SIP sterilisable
  • Mounting fittings Flange, DN25, BSP, or sanitary Tri-clamp.
  • A range of steriale fittings are available for adjustable insertion length
  • Insertion lengths from 250 mm to 3 meters
  • Max. operating temperature 200 degC
  • Max. pressure 25 bar

The MultiSense Range

Multi-Sense is an exciting new concept for foam and level measurement

MultiSense can measure and control liquid and ignore any foam, or measure both liquid and foam giving separate indications of each. It can also be used to just measure foam level precisely over a wide range in processes where foam level is critical. MultiSense will also detect interfaces between phases in the materials, e.g. liquid and foam or different liquids.

Applications have been found in Bioreactor foam control, Water Treatment level control, De-Inking Flotation Processes, Mineral Recovery, Foam Control on varying liquid levels and Liquid level control.

Understanding MultiSense

MultiSense – a new concept.

MultiSense sensors

  • The MultiSense uses an array of mirco-sensors built into one body with each separate micro-sensor
    measuring the material adjacent to it. This allows very high accuracy and enables a number of
    separate parameters to be measured simultaneously.
  • The micro-sensors detect the interfaces between phases in the material, e.g. liquid and foam or
    different liquids
  • The MultiSense sensor array can be supplied in a variety of lengths and fittings, and with varying
    numbers of sensors depending upon the application requirements
  • Immune to fouling
  • Sanitary construction
  • Insertion lengths from 250 mm up to 3 meters
  • Max. operating temperature 180 degC
  • Max. pressure 25 bar

MultiSense Controller

  • The controller energises the sensor and processes the data.
  • The controller can drive up to 8 sensors.
  • The controller calculates the volume of liquid from the height and the internal diamenter of the vessel
  • Wall mounted, encapsulation IP65
  • Output 4-20 mA liquid level
  • Output 4-20 mA foam level
  • Relay contacts for both level and foam control
  • Although the control panel display is part of the MultiSense Control unit, it may be placed in an
    existing control room by using a special cable.

Foam Controllers for use with SureSense sensors

The control units include adjustment of the sensitivity, and it is possible to adjust both response time and shot time for antifoam agent.

FCW2 Foam Controller

  • Wall mounted, encapsulation IP65
  • Transmit a signal to a process controller or alarm, alternatively to control a pump or valve directly to dose antifoam by means of a ‘Delay and Shot’ algorithm.

FCR2 Foam Controller

  • Rack mounted in a standard 19″ rack
  • Transmit a signal to a process controller or alarm, alternatively to control a pump or valve directly to dose antifoam by means of a ‘Delay and Shot’ algorithm.

FTRAN

  • The FTRAN operates in the same way as the FCW2 but is designed to be surface mounted inside the customers existing control cabinet.b

FCS200 Foam Control System with antifoam pump

  • FCS200 Foam Controller is an advanced design foam controller unit built to rugged industrial standards
  • A diaphragm pump ad antifoam into the process automatically when required.
  • FCS200 can also be connected to external devices such as process controllers, Scada systems and alarms.

FCS2 Laboratory Foam Controller with antifoam pump

  • Bench foam control system with laboratory sensors
  • Control foam in laboratory reactors and process
  • Integral peristaltic pump for automatic addition of antifoam agentn be means of Delay and Shot’ algorithm.
  • One relay activate when foam is detected
  • One relay activate when the pump is operating

FLCW2 Foam and Liquid Controller

  • The FLCW2 can differentiate between liquid and foam.
  • Wall mounted, encapsulation IP65
  • The FLCW2 will detect the rising liquid level, as the foam sensor become submerged in the liquid.
  • The FLCW2 can be used in a “stand alone” system to control a pump or valve directly to dose antifoam by means of a ‘Delay and Shot’ algorithm.
  • This unit is also available as a 19″ rack mounting version the FLCR2
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