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Data boiler technologies llc7/13/2023 ![]() The filming barrier protects the pipe from acid and oxygen pitting.Īmine feed should be examined and evaluated in any system such that: When this material deposits on the inside of the pipe, liquid cannot penetrate it, preventing the condensate from coming in contact with the metal. Instead it coats the inside surfaces of the pipe with a microscopic layer of chemical that is almost oily in nature. When the steam condenses, this type of amine does not dissolve. There are specially designed injection quills and pumps that are used to do this so that the filming amine is properly dispersed throughout the steam. In order for a filming amine to work properly, it must be direct injected into the steam header. In fact, feeding this type of amine into a boiler could cause even worse problems than not treating the condensate at all. To avoid this situation, amines should always be fed continuously in proportion to the feedwater by means of a chemical metering pump.īy contrast, filming amines are not completely soluble, and therefore, cannot be fed directly into a boiler. However, at elevated concentrations, these neutralizing amines may be corrosive to copper and its alloys. This has been confirmed by the long history of amine treatment in thousands of boiler water systems. The amines do not have any adverse effects on copper or copper alloys under normal treatment conditions where pH is maintained between 7.5 to 9.0 and where only a few ppm of amine are continuously added to the boiler water. Neutralizing amines are used in boiler water treatment to control condensate return line corrosion. Neutralizing amines control corrosion in condensate applications by diminishing the effects of carbon dioxide and other acid forming compounds. These types of volatile amines are often referred to as short range, medium range and long range neutralizing amines, because of the distance they are able to travel “down pipe.” Neutralizing amines are alkaline and, therefore, neutralize the acids that can form in the condensate by raising the pH. They are considered volatile because they flash off and are carried with the steam into the rest of the system. The volatile amines are completely soluble and therefore, can technically be fed in the boiler. Amines fall into two major categories: filming and volatile. There are many types of condensate treatments, but the most common are amines. The steam needs to be treated chemically with a condensate treatment.The pipes and condensate receivers need to be properly insulated.The system needs to be checked for leaks and failed steam traps.It’s really a compound answer, but here are the basic steps that must be taken: Keeping the pH in the pipes within acceptable ranges is extremely important to boiler operation just as important as using at deakalizer to remove alkalinity from boiler makeup water or using a water softener to remove hardness from incoming water. ![]() At the right pH, it starts to form carbonic acid and carbonic acid eats through steel. When water cools, carbon dioxide (CO2) easily dissolves in it. As mentioned earlier, condensate is almost 100% pure water, and pure water is one of the most corrosive elements on the planet especially when it comes in contact with steel and starts to cool. There is, however, a dark side to this seemingly wonderful condensate. ![]() The bottom line is, if you can return most of your condensate and keep it hot, you can save tons of money in energy. If condensate is not returned to the boiler, then the boiler needs to have fresh water introduced, which needs to be pre-heated, which burns fuel. Returning the condensate back to the boiler saves water, but more importantly, it saves fuel. That’s why one of the best things that you can do at your facility is capture and return as much hot condensate water back to the boiler as possible. In fact, condensate is practically 100% pure, clean water… and it’s very hot, which makes it the perfect fit for boiler feed water. ![]() This condensate water has very little impurities in it. When the steam condenses in the pipe it is called condensate. Steam leaves the boiler through piping to transfer heat to something usually a heat exchanger or steam jacket. (If you already know, please skip to the next section.) If you have a steam boiler, your boiler system produces steam. Before we talk about why it is so important to treat your boiler system’s condensate, we should probably first discuss what condensate is and why it is important.
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