Curse of the Aluminum Heat Exchanger

Posted by David Burroughs on Sep 2, 2015 10:00:00 AM

Aluminum has always been used in various cooling systems, such as injection molding. Over the past several years however, the water treatment industry has seen even more use of the metal in heat exchangers and hot water boilers. The reason for this industry shift is the light weight, easy fabrication properties and excellent heat transfer characteristics of aluminum. The problem this presents is that aluminum doesn’t play very well with the traditional treatment chemistry used in closed systems. This week’s blog will review some of the basics with aluminum metallurgy and discuss some of the keys for treatment.

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Topics: Boilers

8 Steps to A Proper Boiler Startup Procedure

Posted by David Burroughs on Aug 12, 2015 1:54:00 PM


Fall is just around the corner already.  With school starting in the next few weeks, many of these facilities and other commercial facilities will start to get their heating systems ready for colder weather.  This article will focus on boiler startups after the long summer shutdown and some tips to keep these systems operating reliably. 

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Topics: Boilers

5 Factors That Impact the Formation of Boiler Scale

Posted by Doug Frassa on Apr 2, 2015 12:05:15 PM

Energy efficiency of your boiler system centers around keeping your boiler clean and free of scale. Boiler scale can be a hard, tenacious deposit or a softer coating of insoluble salts, which forms on boiler tubes and walls. It’s most often caused by makeup water hardness, which refers to the naturally occurring calcium and magnesium ions found in water. These ions, when heated to the high temperatures inside a boiler, are what creates the scale and scale buildup. This buildup will not only cause a reduction in energy efficiency of the boiler, but can lead to boiler tube overheating potentially to the rupturing of the tubes.

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Topics: Boilers

How Boiler Feedwater Quality Can Affect Boiler Operations

Posted by Mike Brown on Mar 24, 2015 2:38:02 PM

 

A large majority of boiler water problems have their root cause from impurities and contamination in the feedwater system. This should be a clear indication of how critical feedwater quality is to the health of a boiler water system.

For anyone treating the water within a boiler system, it is important to understand the unique qualities of water and steam generation, as well as how the makeup of the feedwater you use can affect your boiler water system.

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Topics: Boilers

Organic Oxygen Scavengers: Understanding Common Varieties

Posted by Doug Frassa on Feb 25, 2015 9:43:00 AM

Boiler System

Organic and inorganic oxygen scavengers decrease or remove the level of oxygen in the water by reacting with the dissolved oxygen in the water. This reduces the accelerated corrosion caused by the presence of oxygen in a high heat environment.

It’s important to note that not all scavengers are created equal. The differences among them can be significant in terms of effectiveness, temperature ranges, cost, reaction time and type of systems where they can be utilized.

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Topics: Boilers, Oxygen Scavengers

Inorganic Oxygen Scavengers: Explaining Common Varieties

Posted by Doug Frassa on Feb 18, 2015 4:29:54 PM

Boiler System

Organic and inorganic oxygen scavengers decrease or remove the level of oxygen in the water by reacting with the dissolved oxygen in the water. This reduces the accelerated corrosion caused by the presence of oxygen in a high heat environment.

The difference between oxygen scavengers lies in their effectiveness, temperature ranges, cost, reaction time and type of systems where they can be utilized.

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Topics: Boilers, Oxygen Scavengers

Dow Announces Biocide Name Change

Posted by Doug Frassa on Oct 18, 2012 1:17:00 PM

Effective December 31, 2012, Dow will be changing the name of the Aqucar DBNPA 20, which is a 20% active DBNPA product, to Aqucar DB 20. This is a branding name change only from Dow.  The actives of this product will remain the same, with the added benefit of registered use in Reverse Osmosis membrane systems. 
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Topics: Boilers

About this Blog

QualiChem's Water Treatment Solutions Blog offers helpful information about:
  • Boiler water systems 
  • Cooling towers and corrosion
  • Products designed for Water Treatment applications
  • Water treatment chemicals business ownership

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