This article describes the application of Trisodium citrate in boilers.Trisodium citrate is used in food additives, beverages, instant drinks, medicines and detergents. It is also used as a buffering agent, acidity regulator, separation agent or emulsion.Trisodium citrate in boilers is an effective material for removing carbonate scale and cleaning car radiators. In medicine, it is used as an osmotic laxative and as an active component of oral hydration solution. It is also used to control acidity in some ingredients such as gelatinous desserts. In addition, it is used as a flavoring or preservative. Used to store blood in blood banks.
Some natural and synthetic materials have the ability to remove mineral ions from water. For example, when water passes through a cation exchange softener, all the calcium and magnesium ions are removed and the sodium ions are replaced. Because simple cation exchange does not reduce the total solids of the water source, it is sometimes used to soften the type of precipitation.Chemical treatment of water inside the boiler is usually necessary and taking care of any impurities entering the boiler with feed water (hardness, oxygen, silica, etc.).In many cases, external treatment does not require water supply and only internal methods can treat water.Sodium is a special agent for removing carbon scale from boilers without removing them from operation and is used to clean car radiators this is a Applications of trisodium citrate.The internal surfaces of steam generating systems are cleaned to remove contaminants that interfere with heat transfer and may eventually damage the pipe. The following factors should be considered when deciding on chemical cleaning and choosing the cleaning method:
Type of design, flow rate, operating temperature and steam generator pressure
Specifications and amount of deposit
Compatibility of cleaning solvent with system metallurgy
Method of disposal of consumed solvent
Availability of liquid water or mineral condensate
Safety
Cost
Preoperative cleaning
Everyone knows that boiler pipes with deposits can cause long-term problems for the boiler. Water sediments insulate pipes from fire and cause the metal temperature between the sediment and the metal of the pipe to rise dramatically. Prolonged overheating of the metal is the result of prolonged work with heavy pipe deposits. First, the pipes come off and fail. Because sediment is widely distributed, this generally means that large parts of the boiler pipe are damaged and need to be replaced.These deposits also concentrate any boiler water chemistry and contaminants that accumulate beneath them. Increasing the temperature of the deposited metal increases the corrosion caused by any phosphate, caustic or chloride under the deposition.With the exception of corrosion, all the mechanisms of failure of the boiler pipe towards the water under the sediments are created.The purpose of preoperative cleaning is to remove building contaminants that can cause operational problems or even breakdowns during initial work. Pre-operative contaminants include mill scale, boiling slag, corrosion products, oil, grease, debris and soil, temporary protective coatings and other contaminants remaining after construction and installation of the unit.Oil and grease are used in the construction of the boiler. The insulating effect of even thin layers of these materials can lead to excessive damage. Oils and greases, including temporary protective coatings, are generally removed by cleaning hot alkaline chemicals.If cleaning is not required, alkaline cleaning should be done with steam.
Internal purification can work when boilers are operating at low or medium pressure, large amounts of dense steam are used for feed water, or good quality raw water. The purpose of an internal treatment is to:
1. React with any hardness of water and prevent it from settling as a scale on the metal of the boiler.
2. Adjust suspended solids such as sludge or iron oxide in the boiler and make it non-stick to the boiler metal.
3. Provide anti-foam protection to provide a reasonable concentration of soluble and suspended solids in the boiler water without foam transfer.
4. Eliminate oxygen in the water and provide enough alkali to prevent the boiler from corroding.
In addition, as an adjunct, an internal treatment should prevent corrosion and scaling of the feed water system and protect against corrosion in the steam condensate systems.