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Boiler tubes are damaged by pitting corrosion

  • Dosing of oxygen scavenger is insufficient
  • Low temperature in feedwater tank - thermic deaeration does not work well
  • Oxygen scavenger is inconvenient for the system
  • Oxygen scavenger is already old
  • Aerated or non-functional dosing of chemicals
  • Pulse watermeter does not work. Dosing pump is connected to it.
  • Control unit of dosing to system is fault

Boiler tubes are scaled, fair colour

  • Ion-exchanger (Reverse osmosis) does not work
  • Quality of condensate is low and parameters of boiler feed water worsens
  • Condensate can be worsen either resprays or it is polluted during road by damaged interchanger from which condensate receives raw water, or other substance from production
  • Low or zero concentration of phosphates or another scale inhibitor or isn´t dosed at all
  • Inconvenient scale inhibitor is used for this type of boiler water
  • Aerated or non-functional dosing of chemicals
  • Pulse water meter does not work. Dosing pump is connected to it.
  • Control unit of dosing to system is fault

Boiler is full of sludges, colour is red

  • Probably to many phosphates is dosed into boiler feed water
  • Condensate worsens quality of boiler feed water. Hardness comes to system and and it leads to phosphates sludge creation.
  • Boiler water is thickening or blow-down is too low and sludge stay in boiler

  • Operation of blow-down does not work sufficiently or automatic blow-down is set up badly
  • Control unit of dosing to system is fault

kaly

Boiler after half-year polymeric continual cleaning, sludge is almost gone and it stays only protective phosphate layer

Boiler carryover

  • Blow-down is too low
  • Bad quality of condensate can be caused by carryover. Another problem is increasing risk of clogging boiler thanks to shoddy boiler feed water althoughion-exchanger in supplemental water works well
  • Increasing fuel consumption of boiler as a result of shoddy boiler feed water and thereby low cycles of concentration in boiler water
  • Boiler water is thickening or blow-down is too low and sludges stay in boiler
  • Operation of blow-down does not work sufficiently or automatic blow-down is set up badly
  • Pulse water meter does not work. Dosing pump is connected to it
  • Control unit of dosing to system is fault

Condensate is yellow colored , red or contains black sediments

  • Condensate pipeline is affected by corrosion
  • Except food production system should be treated by volatile amines
  • Chemicals for protection of condensate pipeline increase condesate´s pH around 9 also they passivate an iron surface and create protective layer

Najdete nás

  • Starobělská 1063/13
    Ostrava – Zábřeh
    Česká republika 700 30
  • +420 702 181 700
  • This email address is being protected from spambots. You need JavaScript enabled to view it.

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