Without effective control, the cooling circulating water is easy to breed moss, microorganism and scale, reduce the heat exchange efficiency and even cause biological corrosion and other phenomena. This paper compares several common cooling circulating water treatment methods in the market and discusses and exchanges together.
| Item |
Electrolytic Treatment |
Chemical Dosing Method |
General Physical Descaling |
| Prevent Scale |
Electrolysis method to remove scale, without adding any agent, the anode area of electrocatalytic reaction, cathode area adsorption scale, purification of water quality |
Passive scale removal, adding organophosphorus scale inhibitor, improper control is easy to produce calcium phosphate scale |
The physical mode makes the cooling water not easy to scale and the scale ions dissolved in the water are not easy to remove |
| Sterilizing Alga |
The anodic area of the noble metal mixed oxide coating produces hydroxyl radical, chlorate, hydroxide and other strong oxidizing substances, which has the effect of sterilization and algae removal |
Add chemical sterilization agent, this kind of substance has certain corrosive and harmful |
Adding bactericidal and algae killing agents, the effect is limited |
| The Host Pickling |
Properly maintained, depending on the water quality, reduce the frequency of cleaning, |
Clean once a year or regularly depending on the water quality |
Clean once a year or regularly depending on the water quality |
| Energy Consumption Of The Host |
Normal and stable, can reduce unnecessary loss of energy consumption |
Trend temperature gradually increases, heat exchange rate decreases, energy consumption increases |
Trend temperature gradually increases, heat exchange rate decreases, energy consumption increases |
| Enrichment Ratio |
If the concentration times are more than 9 times, the concentration times of water resources |
If the concentration timescan be saved by 5-7 times. If the concentration times are more than 9 times, the water needs to be discharged |
If the concentration timescan be saved by 5-7 times. If the concentration times are more than 9 times, the water needs to be discharged |
| Equipment Operation |
Easy installation, no need to be on duty, only need to regularly clean the scale collection cylinder |
Install quantitative dosing, chemical barrels need to be regularly adjusted and |
Need to be controlled by special people regularly |
| Discharge Water Quality |
No secondary pollution, no toxicity, discharge is harmless to the environment; |
Contains scale and fungicide, which causes pollution to the environment |
Contains scale and fungicide, which causes pollution to the environment |
| Economic Benefits |
Water saving and electricity saving, the service life of the host equipment is extended accordingly; |
The increase of electricity and water expenses requires regular pickling of equipment, which has a certain risk of affecting the operation efficiency of the host machine and the loss of production capacity caused by shutdown; |
The equipment needs to be pickled regularly, which has a certain risk of affecting the operation efficiency of the host machine and the loss of production capacity caused by shutdown |
