Two general approaches to conditioning sludge inside a boiler

There are two general approaches to conditioning sludge inside a boiler: by coagulation or dispersion When the total amount of sludge is high (as the result of high feed-water hardness) it is better to coagulate the sludge to form large flocculent particles. In addition to reducing boiler efficiency either effect leads to insufficient cooling of the metal heat transfer surfaces, which may become so hot that it is no longer strong enough to withstand the operating pressure, causing metal failure. In these applications, it is vitally important that the feed water used is correctly treated to ensure efficiency, maximise boiler and beverage water treatment system life, reduce maintenance costs and maintain required levels of operational performance. Chemicals added to react with dissolved oxygen (sulphate, hydrazine, etc.) and chemicals used to prevent scale and corrosion in the feed-water system (polyphosphates, organics, etc.) should be fed in the feed-water system as continuously as possible. Untreated water running through cooling towers can leave behind scale and cause corrosion, resulting in a loss of heat transfer and inefficiency in critical operating equipment.

Specializes in building water treatment for HVAC boilers, chilled water systems, and cooling towers. Appropriate chemicals will be added to help prevent corrosion and scale. In addition, Water Treatment Services provides highly qualified technical service to aid customers in identifying and solving boiler water related problems. There are two main groups of Chemicals for Boilers to choose from. Pitting and pinholing can be controlled using boiler treatment chemicals such as oxygen scavengers including tannin, sulphite or DEHA. The boiler can only carry out these two functions effectively if the qualities of the feed water and the boiler water are properly controlled. In low-pressure boilers, mechanical carryover (the entrainment of boiler water in the steam) can be caused by a high concentration of dissolved solids in the boiler water, resulting in surface tension reduction and boiler water destabilization, and potential foaming in the steam drum. Managing condensate water quality in your steam generating system is important as if left untreated it can cause a number of serious issues including acid and oxygen corrosion This can lead to the failure of the condensate return lines and other system components. This can be achieved through good system design, particularly feed-tank and condensate return arrangements) and the use of high performance boiler treatment technologies. For more information on our range of boiler treatment chemicals including those which are available for order online please click the link below to visit our boiler chemicals page. If a boiler system is poorly maintained or the water used within it is left untreated it can lead to a number of serious issues that will affect the integrity and performance of the boiler and steam-raising system. The amount of caustic in a boiler can be adjusted by controlling the sodium hydroxide feed rate or by limiting the concentration of carbonates in the boiler water.

Our descaling and boiler acid cleaning service uses a range of inhibited cleaning acids such as hydrochloric and sulphamic acid which are carefully matched to the system metallurgy and the nature of the scale. Adapting their approach and technologies over the years to respond to changing market needs, Nalco now provides water treatment solutions in the power, oil and gas, and food and beverage industries, among others. These players usually customize the water treatment systems to cater to the requirements of customers. STEAM-CO specializes in boiler washouts and other types of water treatment. This is perfectly acceptable if this third party has sufficient knowledge and experience of the type of boiler employed and the way the steam produced is used by the process rather than just water testing and treatment services in general. Since 1983 PACE has grown to service BC, Alberta, Saskatchewan and Manitoba, providing clients with the latest advancements in energy and water treatment services to protect the system metallurgy and enhance the efficiency of heating and cooling water systems. These chemicals are mostly oxygen scavengers and phosphates The boiler water also has frequent blowdowns in order to keep the chloride content down. This analysis is important to keep on top of your boiler water treatment levels as poor management can lead to scale & corrosion issues, reduced efficiency and even damage to critical systems. Contact Us Today For More Information About Our Services and Chemicals. Feed-tank-design-key-features In order to provide maximum protection to the boiler and feed system, the oxygen scavenger should be dosed to the hot end of the hot well i.e. away from the cold water inlet or failing that into the feed-line just as it leaves the hotwell. This process is essential to the prevention of scale and corrosion in your boiler. Steam boilers are hot and water tight and do not lend themselves to visual inspections.

Although 90% of our work consists of general everyday water treatment, working with new and re-tubed boilers, we can also handle boil-outs and scaled boilers that need acid cleaning. Our state of the art boiler water treatment chemistries will eliminate efficiency robbing boiler system deposits, minimize loss of expensive hot blowdown water, and prevent water side corrosion concerns. The company was contracted by the original equipment manufacturer (OEM) responsible for the supply and installation of heat recovery boilers, steam turbines and other associated equipment. Efficient and reliable operation of steam generation equipment requires the application of the best available boiler water treatment chemistry combined with monitoring and control solutions to mitigate corrosion and deposit formation while optimizing fuel and water usage. Digital solutions to help you monitor the water quality of your facilities. Examples include prevention of: scale formation, corrosion, boiler water carryover, and sludge deposition. Corrosion is caused by oxygen in the water. With a range of solutions in water purification and sustainable water recovery, Veolia offers technological solutions for industrial and science and research companies. Aqua Services (UK) is a family-run business providing commercial water treatment services across the Midlands and Northern England. Adding chemicals to the boiler water to prevent damage is what really interests us. The different types of damage include; scale, the build-up of hard minerals, corrosion – the gradual destruction of materials, and foaming – the foaming of water as it boils caused by water impurities. All of which can significantly reducing your boilers efficiency and reliability. Corrosive compounds, especially O2 and CO2 must be removed, usually by use of a deaerator Residual amounts can be removed chemically, by use of oxygen scavengers Additionally, feed water is typically alkalized to a pH of 9.0 or higher, to reduce oxidation and to support the formation of a stable layer of magnetite on the water-side surface of the boiler, protecting the material underneath from further corrosion.

Over 50% of equipment breakages are due to poor water quality. Clarity Water Technologies specializes in comprehensive water treatment services. These solutions include CorTrol OS5300, oxygen scavengers that remove dissolved oxygen after deaeration to prevent pitted corrosion in both low- and high-pressure boilers. Ultra Low Frequency (ULF) waves in ULF treatment take away the risk of hard scale in a very innovative, patented ( Method and device for water treatment using an electromagnetic field ) way. STEAM-CO is a service and water treatment company based in southeast Georgia. Carryover (see below) can cause steam contamination issues whilst foaming can reduce the heat transfer efficiency of boiler tubes and lead to overheating and premature failure. We make and supply a comprehensive range of boiler water treatment chemicals, dosing systems, water softeners and provide expert on-site service and consultancy. Sci- Water provides a comprehensive line of products and services to help you address the diversified water problems associated with facility management. Dow is a chemical corporation that combines science and technology to provide innovations that help the company’s customers produce and conserve clean water and energy and increase productivity. There are many types of external treatment ( softening , evaporation , deaeration , membrane contractors etc.) which can be used to tailor make feed-water for a particular system. Take scale inhibitor technology for instance; there are many families of scale inhibitors each designed to inhibit the formation of scale in different ways depending on the boiler design and feedwater quality. The dosage rates for the catalyzed version and the normal BJ-10 are interchangeable, and can be determined by the normal boiler calculations and maintaining a residual of 30-60 ppm sulfite in the boiler, and 5-10 ppm sulfite in the deaerator, feedwater or surge tank. Boiler services: Kurita provides a wide range of system optimization services, plant audits and consultancy by our experts to extend system lifetime and reliability. We understand these unique needs and work to protect your employees, customers, and equipment by offering a variety of diverse solutions, from hands-free chemical delivery to treatment program automation. In the area of cooling and boiler water treatment, Astbury offers a complete package of services, including all aspects of treatment programs to protect against scale formation, corrosion, and biological fouling. We work with a wide range of various areas in water treatment solutions. Water efficiency programs can reduce annual water, energy, chemical and sewer expense by as much as 30%. Properly designed industrial water treatment systems include the specialized equipment, as well as the maintenance cycles to monitor the performance of the critical components.

Leave a Reply

Your email address will not be published. Required fields are marked *