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Product Thermal Capacity: 1 - 20 t/h
Working Pressure: 0.7 - 2 Mpa
Product Thermal Capacity: 20 - 110 t/h
Working Pressure: 1.25 - 5.3 Mpa
Product Thermal Capacity: 2 – 20t/h
Working Pressure: 1 - 2.5 MPA
Product Thermal Capacity: 4 - 35 t/h
Working Pressure: 1.0 - 2.5 MPA
Dissolved oxygen in boiler system water causes corrosion and pitting of metal surfaces, which can lead to boiler inefficiency, equipment failure, and system downtime. DEHA (N,N-Diethylhydroxylamine) is added to boiler system water as an oxygen scavenger to keep the dissolved oxygen levels as low as…
NALFLEET™ Oxygen Scavenger Plus™ is a catalysed, liquid Oxygen Scavenger based on Diethylhydroxylamine (DEHA). Its volatile properties ensure distribution throughout the boiler and condensate system, and hence protects against oxygen corrosion in all parts of the system.
The make-up water should always be fed to the feed tank through a deareation tower on the top of the tank. The high temperature in the tank reduces the ability of the water to keep oxygen (and gases in general) dissolved. The oxygen will be forced out of the water and vented away from the system. Supercritical Units, Power Plants
CorTrol is an aqueous organic oxygen scavenger that does not contribute inorganic solids to boiler feedwater. Some product features include: Improves equipment reliability Controls dissolved oxygen pitting in boiler feedwater, internal boiler and steam condensate systems Reduces maintenance costs associated with dissolved oxygen failures
In order to deaerate the boiler feedwater, water is sprayed into a steam atmosphere. This heats the water to within a few degrees of the temperature of the saturated steam. Because the solubility of oxygen in water is very low under these conditions, 97 to 98% of the oxygen in the incoming water is released to the steam and is purged from the
Which Oxygen Scavenger should be used in your boiler system? Our blogs this week will help you evaluate your needs and give you the pro's and con's of commonly used oxygen scavengers. Oxygen corrosion can be severe, especially to mild steel and when high temperatures come into play - this corrosion can occur quickly.
This operation reduces oxygen in the makeup water by more than 99 percent, leaving behind oxygen concentrations measured in the parts-per-billion range. At feedwater and boiler water temperatures, even this level can create severe corrosion. Therefore, the last traces of oxygen must be chemically scavenged from the feedwater.
Reducing of Corrosion Rate in Boiler Tubes by Using Oxygen Scavengers 22 IJCPE Vol.16 No.4 (Dec. 2015) -Available online at: www.iasj.net carbon dioxide is known to cause corrosion in return line condensate system.  The most harmful of the dissolved gases in water is oxygen.
Oxygen attack. Carbon dioxide attack. Without proper mechanical and chemical deaeration, oxygen in the feed water enters the boiler. Much is flashed off with the steam; the remainder can attack boiler metal. Oxygen in water produces pitting that is very severe because of its localized nature.
Preventing Boiler Corrosion is done through the removal of oxygen and maintaining appropriate alkalinity levels in the boiler water to prevent acid attack.. As shown in the chart oxygen levels are tied to the Hotwell feed water temperature with nearly all oxygen gone by the time the water reaches 100 o C. For this reason, we recommend keeping the temperature above 80 o C and incorporating an
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