Custom Corrosion Resistant Anodic Protection Sulfuric Acid Cooler with Extended Lifespan and Optimized Thermal Conductivity First Absorption 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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Custom Dry Acid Cooler with Anodic Protection for Sulfuric Acid
Jiangsu Carpe Diem Ocean Equipment Co., Ltd. specializes in engineering and distributing high-grade thermal control systems for chemical processing environments, with particular expertise in Anode Protection Sulfuric Acid Coolers. This equipment is essential for ensuring safe, efficient, and extended service life in modern sulfuric acid production operations.
Equipment Overview
The Anode Protection Sulfuric Acid Cooler is a shell-and-tube heat exchanger specifically engineered to reduce the temperature of concentrated sulfuric acid (typically 93% to 99%) across drying and absorption sections in contact process installations. The corrosive nature of heated concentrated acid rapidly deteriorates conventional metals, but this equipment resolves this through anodic protection—an electrochemical technique that maintains stainless steel in a passive, corrosion-resistant state.
Technical Principles & Operation
The system utilizes anodic protection, where stainless steel components (acting as the anode) are maintained at a regulated electrical potential within their "passive threshold." This is achieved through a cathodic assembly—either extended cathodes through the shell or pin-type cathodes in nozzles—working with a reference electrode and potentiostat that controls DC power input.
- Oxide Barrier Formation: Low-level direct current promotes the development of a robust oxide coating on all wetted surfaces, serving as a protective shield that reduces corrosion rates by several orders of magnitude.
- Voltage Monitoring & Adjustment: Continuous monitoring of electrical voltage between steel and reference electrode allows dynamic current adjustments, keeping the metal reliably within the passive zone and preventing both active breakdown and transpassive erosion.
- Mechanical Design: The cooler is structurally engineered to withstand thermal pressures inherent to processing environments. Design features like rod-patterned baffles minimize tube oscillation while enhancing heat transfer performance.
Key Advantages & Performance Benefits
- Superior Corrosion Control: Anodic protection significantly limits chemical attack, enabling austenitic stainless steels to perform reliably in conditions where they would normally fail, ensuring continuous operational integrity.
- Extended Equipment Lifespan: Consistent maintenance of the passive oxide layer protects against chemical deterioration, resulting in substantially longer operational life compared to unprotected alternatives.
- Optimized Thermal Efficiency: System architecture supports turbulent acid circulation and incorporates high-capacity heat transfer surfaces essential for precise temperature control and efficient power consumption.
- Operational Reliability: Consistent protective parameters and integrated monitoring features—including remote diagnostic capabilities in modern versions—significantly reduce the risk of acid discharge and unexpected downtime.
- Energy Recovery Potential: Safe operation at elevated temperatures (up to 160°C or higher) enables recovery of high-grade waste heat, enhancing overall energy performance of sulfuric acid facilities.
Jiangsu Carpe Diem Ocean Equipment Co., Ltd. provides these premium cooling solutions, ensuring clients receive durable, low-maintenance equipment crafted to meet the exacting standards of large-scale sulfuric acid processing operations.
