Corrosion Resistant Anode Protection Sulfuric Acid Cooler with Extended Equipment Life and Optimized Heat Exchange Dry Acid Cooler
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Process parameters
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Project
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Design parameters
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Performance parameters
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Shell Side
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Tube Side
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Shell Side
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Tube Side
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MEDIUM
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Fluid name
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Sulfuric Acid
98.5%
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Cooling Water
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Sulfuric Acid
98.5%
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Cooling Water
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Temperature (Inlet) ℃
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80
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33
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80
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33
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Temperature (Outlet)℃
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40
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43
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40
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42.655
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Liquid Kg/h
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27500
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27500
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40000
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Density(inlet/outlet) Kg/m3
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1840
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1000
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1840
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1000
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Viscosity(inlet/outlet)(cp)
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7.9
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0.76
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7.9
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0.76
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Inlet pressure Mpa
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0.5
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0.4
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0.5
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0.4
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Pressure drop, Mpa
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≤0.07
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≤0.06
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0.001
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0.001
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PERFORMANCE
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Heat exchanged quantity W
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～447027.8
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Flow rate m/s
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0.055
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0.189
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Heat transfer area affluent coefficient
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1.1
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Heat transfer coefficient W/m2 ℃
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269.266
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Heat transfer area m2
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100
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MATERIAL
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Type
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shell and tube
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The flow form
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counter-current flow
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Sealing form
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welding connection in acid side, flange connection in water side
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Materials and specifications
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shell
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316L δ= 5
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Heat transfer tube
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316L Φ19.05×1.65×6000
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Tubesheet
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316L δ= 35
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Baffle-crossing
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316L δ= 5
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head
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316L δ= 35
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Flange standard
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Shell Side
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Tube Side
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HG/T20615-2009 class150 RF
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HG/T20615-2009 class150 RF
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Size
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Φ600×6994×1060
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Operating weight
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5790 Kg
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The scope of supply
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●Complete set ●Control system
●Special cable ●Random accessories
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Strong Acid Anodic Protection Acid Heat Exchanger
Jiangsu Carpe Diem Ocean Equipment Co., Ltd. specializes in engineering advanced thermal regulation technologies for chemical processing applications, with expertise in Anode Protection Sulfuric Acid Coolers. This equipment ensures safe, efficient, and prolonged operation in modern sulfuric acid production environments.
Equipment Overview
The Anode Protection Sulfuric Acid Cooler is a shell-and-tube heat exchanger engineered to cool concentrated sulfuric acid (93% to 99% concentration) in the drying and absorption sections of contact process facilities. It overcomes material degradation challenges through anodic protection technology that maintains stainless steel in a passive, non-corroding state.
Scientific Principle and Operation
The system utilizes anodic protection where stainless steel components function as the anode, maintained at a regulated electrical potential within their passive domain. This is achieved through cathodic assemblies (extended cathodes or pin-configured cathodes) working with reference electrodes and a potentiostat that controls the DC current supply.
- Oxide Barrier Formation: Low-voltage direct current stimulates creation of a durable oxide coating across all wetted surfaces, reducing corrosion rates by several orders of magnitude
- Voltage Monitoring and Control: Continuous surveillance of electrical voltage between steel and reference electrode, with dynamic current adjustments to maintain optimal passive conditions
- Structural Design: Engineered to withstand thermal pressures with features like rod-style baffles that minimize tube vibration while enhancing heat transfer efficiency
Key Advantages and Performance Benefits
- Reliable Corrosion Control: Anodic protection significantly reduces chemical erosion, enabling austenitic stainless steels to perform reliably in aggressive environments
- Extended Equipment Lifespan: Continuous maintenance of passive oxide layer protects against chemical attack, offering substantially longer service life compared to unprotected alternatives
- Optimized Heat Transfer: System design promotes turbulent acid flow and incorporates high-efficiency heat transfer surfaces for precise temperature control and energy efficiency
- Operational Reliability: Consistent protective parameters and comprehensive monitoring systems minimize acid leakage risks and unexpected downtime
- Energy Recovery Capability: Safe operation at elevated temperatures (up to 160°C or higher) enables valuable waste heat recovery, improving overall plant energy performance
Jiangsu Carpe Diem Ocean Equipment Co., Ltd. delivers these high-performance cooling systems, providing durable, low-maintenance equipment designed to meet the demanding requirements of large-scale sulfuric acid manufacturing operations.
