Boiler System Treatment Chemicals
Boiler is the equipment which heats water
into steam. Industrial steam is mainly used in heating,
driving pneumatic machine and compressor, and for power
generator, etc. The common problems in boiler system are
scales, precipitates, corrosions and azeotropy etc. Their
hazards are as below:
Although the boiler feed water was treated by resin softening,
it still has a few hardness and impurities. Solid matter
appears when they saturated in boiler water. The solid matter
suspending in water was called water slag; those attaching
to heating surface was scale. They greatly reduce the boiler
heat transfer efficiency, block pipes, and overheat metals
on surface damage, ing bump, tube burst and so on.
(1) Boiler corrosion: The oxygen is dissolved in water.
When following feed water into boiler, the dissolved water
will react with the metal of furnace and/or tubes immediately
under the high temperature catalysis. Especially, the corrosion
caused by dissolved oxygen is corrosive pitting, causing
tube perforation and then rupture. This will greatly reduce
the boiler life.
(2). The reutilization of the water in recycle pipelines,
which is condensed from corrosive vapors, will increase
the boiler feed water temperature and increase the boiler
combustion efficiency. Whereas, the carbon dioxide and oxygen
in air will enter to recycle pipeline and incur sour corrosion
According to these common problems in boilers,
we developed corresponding products:
-Scale and Corrosion Inhibitor: IR-503,
IR-504. Our products are suitable for low pressure
boiler (usually below 12kg pressure), and also to cool water
softening equipments in steel mill and glassworks.
- Cleaning Detergent: IR-50 - Oxygen Scavenger: Hydrazine
Hydrate, Carbohydrazide, Sodium Sulfite
Introduction for some Boiler System
Corrosion Inhibitor: IR-503 Scale and Corrosion Inhibitor
IR-503 is built with phine and polycarboxylic acid. It has
advantages of high efficiency of scale & corrosion inhibition
and good temperature tolerance. IR-503 can be used in water
treatment of low pressure boiler. Boilers include radiator,
steam, locomotive, etc. This product can also be used as
scale and corrosion inhibitor in situation of desalination
plant, distillation and bus water tank.
Corrosion Inhibitor：IR-504 Scale and Corrosion Inhibitor
for Heating Water
IR-504 is mainly composed of high efficient chelating agent.
Through reaction between chelating agent and metal surface,
a protective film is formed. IR-504 has crystal distortion
effect on calcium carbonate and calcium sulfate, thus the
formed scale cannot firmly absorb on vessel wall. This product
has free of carcinogenic substance such as sodium nitrite,
full organic composite, good bio-degradation property. IR-504
is a kind of environmental greenish scale and corrosion
inhibitor for heating water.
Scale and Corrosion Inhibitor for Boiler
IR-503B is composed of chelating, cleaning and dispersing
agents. IR-503B has effects of both cleaning and corrosion
inhibition, and has the advantages of fast cleaning, good
effect, low corrosion rate. IR-503B has little damage to
boiler body and is not affected by Fe and Cu ions in water
system. It is suitable for medium/low pressure boiler.
for RO Membrane: IR-260 Acid Detergent for RO Membrane
IR-260 is an acid liquid formula. It can remove metal hydroxide,
calcium carbonate and other types of scales. IR-260 is suitable
for all aromatic polyamide membranes. Its pH should be diluted
to 1.0-3.0. As the liquid, IR-260 can reduce the mixing
time; and be used repeatedly.
Oxygen Scavenger: Carbohydrazide
Carbohydrazide is white crystal powder. Carbohydrazide is very soluble in water and soluble in alcohol. Carbohydrazide is the derivative of Hydrazine, has strong reducibility, and can be widely used in industry. Carbohydrazide is used as an oxygen scavenger for water boiler feed and heating systems to prevent corrosion damage. When used as de-oxidant in boiler, put this product into water or use its water solution, the dosage of 0.5mol or above of carbohydrazide for 1mol O2 is preferred. The suitable temperature range is 87.8-176.7℃.
Keywords: Boiler System Treatment Chemicals, Cleaning Detergent, Oxygen Scavenger