A boiler serves as a device for generating steam, which
comprises of two principal parts: the furnace which accounts for the heat
generation, usually by burning a fuel, and the boiler proper, a device in which
the heat brings about the change of water into steam. The steam or hot fluid is
then recirculated out of the boiler to be used in various processes in heating
applications. The boiler receives the feed water, which consists of varying
proportion of recovered condensed water (return water) and fresh water, which
has been purified in varying degrees (make up water).
Feed-water composition depends on the quality of the make-up
water and the amount of condensate returned to the boiler. Proper treatment of
boiler feed water is a critical part of operating and maintaining a boiler
system. As steam is produced, dissolved solids become concentrated and form
deposits inside the boiler. These results in poor heat transfer and alleviate
the efficiency of the boiler. Dissolved gases such as carbon dioxide and oxygen
will react with the metals in the boiler system and brings about corrosion
within the boiler.
Herein comes the role of NALCO 7208 that serves
as a Boiler Water pH Booster manufactured by Nalco Company. Now, to understand
what exactly is the role of this product in corrosion inhibition, we need to
first know what corrosion actually is.
Corrosion of boiler is regarded as the deterioration of
metal parts of the boiler by chemical or electrochemical reaction with its
environment. Corrosion products that are formed in the boiler or transported to
the boiler can deposit and impede heat transfer, causing tube metal overheating.
In order to provide protection to the boiler from these contaminants, they
should be controlled or removed, through external or internal treatment.
One such treatment for preventing the corrosion of boiler
involves the pH booster chemical treatment. Proper maintenance of pH value in
the boiler feed water helps in protecting the boiler internals from corrosion.
When the pH value is not within range, then a boiler water pH booster chemical
can be administered to it, to achieve the desired pH level. Nalco Company
formulated pH booster chemical product Nalco 7208 effectively precludes corrosion.
Apart from other business portals, this product can now be
searched for in the ChemEqual
directory, the largest online directory for chemicals supplier all over the
world wherein buyers can have a direct access to all the products and their
equivalent brands along with having the convenience of sending direct enquiry
to suppliers.
