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Fineamin treatment is used against corrosion and fouling in steam boilers, warm and hot water piping systems, superheaters, as well as cooling circuits. Fineamin is an environmentally friendly technology and does not significantly decompose even at high temperature and pressure required by the modern power-plant boilers. [3]
The term 'inhibitor' is often used in a general sense to describe any compound used to prevent unwanted polymerisation, however these compounds are often divided into 'retarders' and 'true inhibitors'. A true inhibitor has a well defined induction period during which no noticeable polymerisation takes place. They are consumed during this period ...
Corrosion inhibitors are commonly added to: Coolants. Fuels. Some components include zinc dithiophosphates. [4] Hydraulic fluids. Engine oil. Boilers. Volatile amines are added to boiler water to minimize the effects of acid. In some cases, the amines form a protective film on the steel surface and, at the same time, act as an anodic inhibitor.
NACE International Standard TM0208 defines volatile corrosion inhibitor (VCI) as a chemical substance that acts to reduce corrosion by a combination of volatilization from a VCI material, vapor transport in the atmosphere of an enclosed environment, and condensation onto surface in the space, including absorption, dissolution, and hydrophobic ...
Antiscalants are also known as scale inhibitor agents. Scale formation occurs when the concentration of dissolved salts in water exceeds their solubility limits, leading to the precipitation of these salts onto surfaces as hard deposits. Antiscalants dissolve the substances accumulated near the membrane surface and reduce the rate of fouling. [1]
Combination boilers are popular in Europe where market share in some countries is in excess of 70%, with a projected rise in the United Kingdom to 78% by 2020. [3] This trend is attributed in part by a social trend towards more numerous but smaller households and an ever-increasing trend towards physically smaller and often high density housing.
Scotch marine boiler; Scott boiler: [50] Sentinel boiler; Sentinel-Cammel boiler; Sentinel-Doble boiler; Shand & Mason: [51] shell boiler: small-tube water-tube boiler: water-tube boilers with small-diameter tubes, 2 inch or less, rather than the older large-tube designs, with tubes of 3 inch and above. Also termed Express or Speedy boilers.
Electrode boilers can work on both single-phase and three-phase supplies. If DC voltage is used, electrolysis of water occurs, decomposing water into its elements H 2 at the cathode (negative electrode) and O 2 at the anode (positive electrode). The electrode boiler is 99.9% efficient with almost all the energy consumed producing steam. [1]