Circulating water issues

Perform cleaning and pre-coating treatment, and pay attention to water quality in daily use.

1. Please have a water treatment company test the water quality and provide the necessary chemicals. 2. Regularly adding these chemicals will meet your requirements.

Circulation water pipelines are generally cleaned and coated with a chemical on their inner walls before being put into use; after coating, clean water is used for circulation. If chemical dosing facilities are available, there are usually no problems. The original poster also didn’t mention whether a side filtration system was installed; if so, the effect would be even better.

Generally, water quality monitoring and treatment facilities are required, including functions such as sterilization, flocculation, filtration, descaling, and corrosion inhibition

It’s a problem with the water quality. You can ask a testing agency to monitor the water quality in order to improve it. Then, some additional filtering measures can be added to remove scale and purify the water quality.

Scaling on the water side of coolers may seem simple, but its causes are actually very complex. The poster should hire a professional firm to conduct a comprehensive analysis before taking appropriate action. Usually, this is caused by an excessive concentration factor or high hardness in the circulating water, which renders the water prone to scaling; therefore, scale inhibitors must be added to the circulating water. Meanwhile, to prevent corrosion as well as the growth of bacteria and algae, corrosion inhibitors and biocides must also be added. This post was last edited by mfjxg on 2009-2-3 19:44]

It is best to hire a professional water treatment company to address the issue properly. If it is scaling, pay attention to the control of scale inhibitors; if it is corrosion, focus on the quality of the protective film or the control of corrosion inhibitors. Of course, attention should also be paid to the design and manufacturing process of this cooler. For example, is the temperature very high? Are there any dead corners?

To ensure the long-term proper operation of the equipment, a certain proportion of chemical agents is added to the water in order to prevent problems such as scaling, corrosion, growth of bacteria and algae, and leaks caused by the cooling water on the pipelines and equipment. During normal operation, ① manage the quality of circulating cooling water and industrial water to keep it within the specified quality targets. ② Chemical management: Maintaining the specified chemical concentration and dosing frequency in the circulating cooling water. ③ Evaluation of the chemical effect: It is assessed to determine whether the water treatment effect falls within the acceptable ranges for corrosion and scaling. To prevent cooling water from causing corrosion, scaling, and sludge formation in water-cooled equipment during circulation and concentration processes, it is necessary to carry out scientific and systematic management in strict accordance with the prescribed operational procedures. In case of problems, consult a professional testing agency for water quality analysis and treatment plans, as well as to determine the appropriate dosage and frequency of chemical addition on a daily basis. Strict assessments are applied to operators.

Adding the chemical regularly will meet your requirements

It’s necessary to add additives regularly, and the water needs to be changed from time to time; it doesn’t work to keep adding additives indefinitely

Different solvents are added based on the water quality components to prevent scaling

Normally, scale inhibitors are added to prevent scaling; now cleaning is required

It is necessary to carry out sterilization and algae removal, flocculation, filtration, scale removal, addition of corrosion inhibitors, etc., as well as regular dosing of chemicals

Could it be that the formula for the stabilizer wasn’t chosen properly?

Don’t do anything; those complicated chemicals are purely a waste. Just change the water during the annual shutdown period, and add some fresh water when the water level is low – there won’t be any problems with clogging

In such cases, the only option is to clean it; the cost of replacement is too high. Be careful about water quality in normal times

Using softened water as the circulating cooling water makes the structure much lighter

First, the system is cleaned and pre-coated, followed by water quality analysis; water treatment is then carried out based on the water quality conditions and the actual usage of the goods.

⒈Perform cleaning and pre-coating treatment; 2. Pay attention to changes in water quality, add chemicals, remove scale, change water, and carry out sterilization； ⒊It is best to use demineralized water or steam condensate when adding water, in order to improve the quality of the circulating water ； ⒋Increase the circulation volume of the circulating water to prevent scaling in the system.

Water quality is a major cause of scale formation, and at the same time, the temperature of the recycled water – namely, excessively high operating temperatures – is also the primary reason for scale formation! Scale has already formed; add chemicals to deal with the scale first! Please control future operations mainly from two aspects: one is the inspection of water quality; it should not be too hard, and it’s best to soften such water before using it ； Second, check the temperature of the return water in each water heat exchanger, ensuring it remains below 40 degrees Celsius! Otherwise, scaling is inevitable!