Insertion Thermal Mass Flowmeter for Aeration Air - Water and Wastewater - Water Aeration and Mixing
Aeration lane air controls is most imperative as lower or no air supply causes bacterial death due starvation for oxygen & inefficient treatment whereas very high air supply increases too much bacterial growth in-turn bacteria gets hungry and dies & also increase energy cost. Thermal mass flow meters comes handy for optimizing aeration control by measuring aeration air flow to address the need to control oxygen flow rate requirement for optimizing BOD & Energy cost in Effluent Water Treatment Plant.
LEOMI thermal dispersion technology is the supported innovation for measuring aeration air flow at plants where wastewater is dealt with Largescale Municipal Sewage Treatment, Common Effluent Treatment Plants (CETP), small industrial effluent treatment.
Insertion thermal mass flow meter requires virtually NO maintenance. They are simpler to install and save blower/compressor energy cost. The meter provides direct mass flow rate measurement with highest turndown ratio, No pressure drop, accuracy and repeatability work well for this application against DP Type flow sensors such Averaging Pitot tube or Orifice.
- Optimize Oxygen demand in aeration lane helps optimum bacterial growth
- Saves Energy cost by approx. 5%-15% depending on plant operation conditions.
- Directly control dissolved oxygen for better process control
- Municipal Sewage Treatment Plants
- Common Effluent treatments Plants ( CETP )
- Effluent Treatment plants for Food & Pharmaceuticals
- Aeration Blower Or compressor manufacturers
- ~3-10 mmwc across operating ranges
- whereas DP Type may have 50 mmwc -1000mmwc in aeration blower
- Approx. 8 – 15 % power saving typically against DP Type
- Typically 100 : 1 Turn-down ratio proves to be most sensitive.
- Whereas Pitot or Orifice DP Type 4:1
- High measurement sensitive high signal resolution for fine analysis than Orifice, Aerofoil, Pitot Tube.
HIGHEST ACCURACY :
- Direct Mass Flow Measurement whereas DP are Volumetric
- >±2.0% of reading better than most of Orifice or Pitot DP Type
- With instantaneous thermal conductivity correction of air
LOW TOTEX ( TOTAL EXPENDITURE = CAPITAL + RECURRING ) COST:
- Installation needs <2 hours with planned shutdown whereas DP needs higher time around a day & higher installation cost.
- Virtually NO Maintenance as work same as Pt-100 Temperature Sensor
- NO Shutdown required for preventive maintenance whereas Other Vortex needs shutdown.
ADJUSTABLE DESIGN :
- Insertion Type is adjustable & with programmable pipe diameters whereas Inline type are for specified pipe size.
- Programmable gas other than air is possible
CLEANABLE SENSORS :
- Can be cleaned by compressed air or by recommended liquid solutions after removal from measuring stream for routine maintenance & provides repeatable reading all the time.
- Whereas DP Type ports get clogging.