Download - QC15-4990-M 1.1 PORTFOLIO Cleaning Fin Fan
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ON-LINE Cleaningof
Air Coolers (“fin-fan”)
InnovativeTechnologyInnovativeTechnology
D. D. Technology Inc.Long Beach, CA
Phone 818-469-4437 Fax 214-613-2557
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Fouled Air Cooled Heat exchangers lead to the following problems:
- Low heat transfer efficiency- High pressure drop- High outlet temperature - High energy consumption (fan power)- Low throughput - Low total efficiency
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The D. D. T. process is:
EFFICIENT SAFEENVIRONMENTALLY FRIENDLYCOST EFFECTIVE
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Other methods ofCleaning Air Coolers
No cleaning at all….
Cleaning with high-pressure water jets
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Other methods ofCleaning Air Coolers
Cleaning with detergents (soap, foam)
Cleaning with acids
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The DISADVANTAGES of other methods:
No cleaning means low efficiency
Walking on fins causes fin damage
High pressure water causes damage to fins
Foam/Soap evaporates before penetrating
Acid causes damage to fins
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Damaged fins due to other techniquesWe guarantee that our cleaning will not damage the aluminum fins
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D. D. T. dry-chemical cleaning method(1) spray dry chemicals, bottom-to-top
(2) Rinse with water top-to-bottom
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Our chemicals
Nano-sized powder that does not damage the fins, penetrates all the way through the bundle.
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Powder flow acts differently than Liquid flow
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Cleaning in action
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No need for scaffolding No need to enter into the housingNo need to remove the safety net
Cleaning during normal operation
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Visible Results !!
Half-clean Half-dirty fins
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Inlet/Outlet temperatures Airflow Power of the fan
Parameters to monitor:
Before Cleaning After Cleaning
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Before Treatment: T in = 47.9CT out = 40.8C
After Treatment: T in = 47.2CT out = 37.5C
Delta T = 3.3 C (8.1%)
Throughput benefit: 1,180 $/dayEnergy consumption benefit: 243 $/day
Example of increased Air Cooler efficiency
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Environment: The D. D. T. process is Environmentally friendly
NO creation of wasteChemicals are salts and easily dissolved in water Chemicals are compatible with biological treatment
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SAFETY: The D. D. T. process is SAFETemporarily turn-off each fan for only 40-45minNo Scaffolding needed
Chemicals are non-corrosive and compatible with all types of metallurgy, non-hazardous, non-explosive, non-toxic
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Excellent results
Other methods : Cause fin damage Superficial Cleaning
The D. D. Technology process is: EFFICIENT SAFE ENVIRONMENTALLY FRIENDLY COST EFFECTIVE
D. D. Technology Inc.Our Innovation. Your Saving.