The Value of Good Boiler Blowdown Control

A Critical Component of the Boiler Water Treatment Program

  • 26 June 2018
  • Author: Chem-Aqua, Inc
  • Number of views: 5137
  • 0 Comments
The Value of Good Boiler Blowdown Control

In a steam boiler system, blowdown involves removing a portion of the concentrated boiler water and replacing it with feedwater, which is a mixture of condensate and makeup water.

Good blowdown control is a critical component of the boiler water treatment program.  Boiler blowdown is heated, treated feedwater that is sent to the drain instead of converted into steam. Blowdown is used to control the dissolved and suspended solids level in a boiler within the range necessary to minimize scale deposits and carryover.  Too much blowdown increases fuel, water, and treatment requirements.  Too little blowdown can cause scale deposits and wet steam (carryover)

Learning the Language of Microbiological Control

Key Terms for Water Treatment Novices

Learning the Language of Microbiological Control

Water treatment specialists can forget that their clients may not understand the technical terms used in our industry. The language of microbiological control can be particularly confusing. To help establish a common working vocabulary, it’s important to define some key terms. Let’s get started!

RSS

Tags

accumulators activated carbon aerobic bacteria air-cooled alkalinity amines anaerobic bacteria ASHRAE ASHRAE 188 ASHRAE 188-2018 atomizing A-type bacteria biocides biofilm biofouling blowdown blowdown control blowdown rate boiler boiler blowdown control boilers building water system calcium carbonate calculation capacity chapel tubes chilled chillers chlorides cleaning closed loop CMS directive compressor conductivity Control Ranges cooling Cooling System cooling systems cooling tower cooling towers cooling water corrosion Critical Parameters crystal growth modification polymers cycles of concentration dead legs Deaerator dealkalizer demand deposits disinfection dispersants dissolved gases dissolved solids downcomer D-type electric boilers EPS equipment extracellular polymeric substances filter sand filtration fire tube fire tube boilers firetube firetube boilers free halogen galvanic gases greensand halogen hard water hardness high heat flux steam generators hot water how do cooling towers work HVAC hybrid boilers ice ice machine inhibitor lead leak legionella legionella policy legionnaires legionnaire's disease magnesium silicate makeup water media microbial microbiological microorganisms molybdenum neutralizing amines non-oxidizing biocides oxidizing biocides Parameters phosphate phosphonate planktonic bacteria plastics plastics manufacturing preatreatment pretreatment preventative maintenance protozoa refrigeration residual retrograde solubility reverse osmosis risk risk management sanitizing scale sediment filtration sessile bacteria silica softener solids spray scrubber spray-type stagnant steam steam boiler steam boilers sterilization testing threshold inhibitors tray-type vapor compression venting vertical boilers volume volume estimation water loss water management water management plan water treatment water tube water tube boilers water-cooled watertube watertube boilers WMP