Closed Loop / Chilled Water Treatment
Overview
The primary objectives in boiler design, operation and effective treatment include efficiency in heat transfer, minimisation of energy usage, production of pure steam and safe, reliable operation. The problems encountered in steam-raising plant can be severe if scale formation and corrosion are allowed to occur. Problems can range from loss of efficiency and reduction of plant life, to at worst catastrophic failure. It is also necessary to prevent boiler water carryover, where boiler water (including its dissolved solids) is carried into the steam, sludge deposition and foaming.
The problems encountered in closed circuit systems are like those in open systems – corrosion, suspended solids, scale, and microbiological contamination. However, there are differences between the systems which require us to treat them in different ways. The fixed volume, low make-up of a closed system allows us to dose water treatment products at much higher levels than is possible in open systems, where water is constantly lost to drain. Much better corrosion control can therefore be achieved in closed systems. Another factor is that the dissolved oxygen level in a closed system should be low which should reduce corrosion rates. Higher biocide levels and long contact times allow good microbiological control in closed systems to be achieved. Scaling is not generally a problem unless there is substantial make-up. Klover Chem has a full range of scale and corrosion inhibitors, pre-commission cleaners, system flush chemicals, and biocides for use in closed circuit heating and chilled systems. This range also contains many specialist products formulated for use in specific specialist or problematic situations.
Closed Loop/Chiller Water Treatment Chemicals
Klover’s technically advanced boiler water treatment chemicals have been scientifically formulated to improve the operation and maintenance of industrial boiler systems and steam generation plants
The unwanted formation of scale and detrimental impact of metallic corrosion can be significant issues that affect the operation and maintenance of closed circuit water systems.
The accumulation of microbiological slimes, biofilm and general bio-fouling in closed circuit water systems can be problematic. The build-up of such unwanted foulants can reduce system efficiency, and increase operating and maintenance costs.
High performance Inhibited and uninhibited MEG and MPG based anti-freeze products to keep your systems protected.
The pre-commission cleaning of hot water heating and chilled systems has become more important over recent years due to the equipment used being more susceptible to blockages at strainers, control valves and small bore heat exchangers.
- Molybdate and phosphate based Multi-metal corrosion inhibitor for soft water systems.
- Molybdate + Blend of corrosion inhibitors based Multi-metal corrosion inhibitor.
- Nitrite and molybdate based formulation for for hard and soft water.
- Molybdate, Borate, and Silicate based formulation for for Multi-Metal systems including those with Aluminium.
- Nitrite and borate based Excellent corrosion control for steel, cast iron, copper and brass.
- High performance, supplementary corrosion inhibitor based on Tolytriazole developed for use in open or closed water systems.
- Isothiazolinone, broad spectrum general purpose. Cost effective primary biocide.
- DBNPA. Rapid biocidal action & excellent environmental profile.
- THPS based biocide. Rapid biocidal action & excellent environmental profile.
- Glutaraldehyde based Biocide.
- Bronopol & Isothoazolinone blended liquid biocide
- Food Safe – Mono-propylene glycol based antifreeze with blend of corrosion inhibitors, biostat system & colour indicator.
- Mono Ethylene Glycol based anti-freeze incorporating a high-performance corrosion inhibitor to protect ferrous & non-ferrous metals and a pH indicator.
- Mono Ethylene Glycol (MEG) industrial coolant.
- Mono propylene glycol + ‘food safe’ inhibitor.
- Hydrogen chloride with Film Forming Inhibitor & Indicator suitable for descales & other descaling applications.
- Sulphamic acid based Formulation with acid inhibitor.
- Advanced scale dispersant and sludge conditioner for on-line cleaning programs.
- Alkaline Solution for System Passivation after Acidic Descaling.
