لابراج التبر
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coolingTRANSCRIPT
-
ENSOL CO. Water Treatment
Chemical treatment of Cooling Tower Trouble Shooting Table
Mustafa Atyia 01002090421
S/N Problem Causes Action taken
- High Ca hardness
- High cycle of concentration
Increase blowdown rate
- High Ca hardness in make up
Make proper blending with soft water
-
High or low Alkalinity or pH
- pH control system malfunctioning
Check pH control system
-
high acid consumption
- High cycle of concentration
Increase blowdown rate
- High alkalinity in make up water
- Cooling water contamination -
High heat loading -
High conductivity
- High cycle of concentration
Increase blowdown rate
- High acid injection
# Refer to item # 3
- Cooling water contamination
Increase blowdown rate &prevent
contamination -
low conductivity
- high blowdown rate
Decrease blowdown rate
- Leakage in cooling system
Prevent the leakage
-
Loss of Ca cycles
- No phosphate residual
Check dosing system of EN-305
- high alkalinity
# Refer item # 2
-
High Ca hardness
# Refer item # 1
- High heat loading
Increase blowdown rate
- Low zinc residual
- Low cycle of concentration
Decrease blowdown rate
-
ENSOL CO. Water Treatment
Chemical treatment of Cooling Tower Trouble Shooting Table
Mustafa Atyia 01002090421
- EN-56 EN-56 Dosing system
malfunctioning.
EN-56 Check dosing system of EN-56
- pH high cooling wter pH
# Refer item # 2
- High zinc residual
- High cycle of concentration
Increase blowdown rate
- EN-56 High chemical dosing rate of EN-56
EN-56 Make proper dose of EN-56
- pH Excessive low pH
# Refer item # 2
- Low phosphate
residual.
- Low cycle of concentration
Decrease blowdown rate
- EN-305 EN-305 Dosing system
malfunctioning.
EN-305 Check dosing system of EN-305
- High phosphate
residual.
- High cycle of concentration
Increase blowdown rate
- EN-305 High chemical dosing rate of EN-
305
EN-305 Make proper dose of EN-305
- cooling water get
turbide
- High Alkalinity
# Refer item # 2
- High conductivity
# Refer item # 4
- Cooling water contamination
Increase blowdown rate to remove
contaminants - Algae growing -
Not sufficient biocide addition
Make proper dose of
- High phosphate residual
# Refer item # 10
- Cooling water contamination
Increase blowdown rate to remove
contaminants