This heat exchanger is incredibly dirty.
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A heat exchanger that uses circulating water – it’s this dirty; who else would have it in such a state?! ! !
It only shows that your circulating water parameters are extremely poor.
In a situation like this, our department needs to take photos of the equipment along with it and use them as part of safety experience sharing; P
This must be an human-caused accident. Is it related to the dosing of chemicals in the device?
It’s so dirty, there’s no one else like this..... hahaha;P
What is the concentration ratio of the circulating water? It saves water, right?
With it blocked up like this, doesn’t it have an impact on cooling the process?
The end caps are very dirty... Fainting. Attention should be paid to water quality control in the water tower; filters can be installed at the inlet of the equipment, or online pipe cleaning devices can be used to improve the situation
Based on the images of fouling in the heat exchanger, it is speculated that there may be several issues: 1. The turbidity of the circulating water has likely been above the acceptable level for a long time, either because there is no bypass filter or because the bypass filter is not functioning properly； 2. The quality of the water used for replenishing the circulating water is poor; the presence of a large amount of sludge in the images indicates that the microbial count in the water supply or circulating water system is above acceptable levels. It is possible that the water used for replenishment is the treated wastewater from biological wastewater treatment processes ； 3. Microorganisms grow in the circulating water system, and insufficient amounts of disinfectants are used; ammonia nitrogen and organic phosphorus levels in the water may be significantly above acceptable limits. It is recommended to purchase two or three different types of disinfectants and use them in a rotating manner to improve water quality.
The flow rate of the circulating water in the tube side is low, the outlet temperature of the circulating water is high, which leads to more severe scaling; increasing the amount of circulating water or using a smaller heat exchanger can help
Just change the water directly; the recirculation tank probably already contains half sludge, and there are too many issues with water quality management