Small air separation units water circulation system problem prevention

Sediment deposition

1. Determine whether the system has sediment deposition: circulating water turbidity for a long time (3 months) high (greater than 20NTU), heat exchanger tend to temperature rise significantly (longer than 1 ℃ / month)
2. Treatment method: chemical cleaning, with hydrochloric acid with hydrofluoric acid (sediment temperature increases will have thermal scale precipitation).

Biological slime

1. Determine whether there is biological slime deposition: cool water tower has a large number of bacteria and algae, heat exchanger tend to rise significantly in temperature (longer than 1 ℃ / month)
2. Processing program: add biocide, dispersant, defoamer. A comprehensive cleaning and stripping of the system.

Bacterial algae multiplication

1. Judgment method: cool water tower wall, there are obvious bacteria and algae reproduction: 
2. Treatment solution: add biocide, dispersant, defoamer, and carry out a comprehensive cleaning and stripping of the system.

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