Anodically Protected Sulfuric Acid Cooler Corrosion Resistance Second Absorption
Price:
Negotiated Price
MOQ:
1
Delivery Time:
60 Workdays
Brand:
Carpe Diem
Product Description
Anodically Protected Sulfuric Acid Cooler with High Heat Transfer Efficiency and Corrosion Resistance Second Absorption Acid Cooler
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Process parameters |
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Project |
Design parameters |
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 |
Fluid name |
Sulfuric Acid
98%
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Cooling Water
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Sulfuric Acid
98%
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Cooling Water
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Temperature (Inlet) ℃ |
60
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32
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60
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32
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Temperature (Outlet)℃ |
40
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40
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40
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39.83
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Liquid Kg/h |
36800
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36800
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33000
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Density(inlet/outlet) Kg/m3 |
1840
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1000
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1840
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1000
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Viscosity(inlet/outlet)(cp) |
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 |
0.5
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0.3
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0.5
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0.3
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Pressure drop, Mpa |
≤0.1
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≤0.1
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0.0007
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0.0002
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PERFORMANCE |
Heat exchanged quantity W |
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～299102.2
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Flow rate m/s |
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0.059
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0.142
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Heat transfer area affluent coefficient |
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1.15
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Heat transfer coefficient W/m2 ℃ |
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266.349
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Heat transfer area m2 |
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125
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MATERIAL |
Type |
shell and tube
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The flow form
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counter-current flow
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Sealing form |
welding connection in acid side, flange connection in water side
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Materials and specifications |
shell
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304 δ= 5
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Heat transfer tube
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316L Φ19×1.5×6000
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Tubesheet
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304 δ= 35
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Baffle-crossing
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304 δ= 5
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head
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Q235-B δ= 5
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Flange standard |
Shell Side
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Tube Side
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HG/T20592-2009(B) PN10 DN 80
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HG/T20592-2009(B) PN10 DN 100
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Size |
Φ600×7274×1060
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Operating weight |
5844 Kg
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The scope of supply |
●Complete set ●Control system
●Special cable ●Random accessories |
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Jiangsu Carpe Diem Ocean Equipment Co., Ltd. applies its engineering expertise to the design and delivery of advanced thermal control equipment for chemical sector operations, with specialized proficiency in Anode Protection Sulfuric Acid Coolers. This unit serves as a critical component for ensuring safe, productive, and long-term performance within modern sulfuric acid production facilities.
Equipment Overview
The Anode Protection Sulfuric Acid Cooler is engineered as a shell-and-tube heat exchanger specifically designed to reduce the temperature of concentrated sulfuric acid—typically maintained within the 93% to 99% range—during the drying and absorption stages of contact method facilities. The highly corrosive nature of heated concentrated acid typically causes conventional construction metals to fail rapidly. This system addresses these challenges through anodic protection, an electrochemical technique that maintains stainless steel in a passive, non-corroding state.
Technical Basis and Operating Principle
The core technology relies on anodic protection, where stainless steel surfaces (functioning as the anode) are maintained at a controlled electrical potential within their "passive region." This state is achieved through a cathodic configuration—using either extended cathodes running through the shell or pin-type cathodes fitted into nozzles—working in conjunction with a reference electrode and a potentiostat that regulates the DC power supply.
- Protective Coating Formation: A minimal direct current is applied to initiate the formation of a durable oxide coating across all interior surfaces. This coating serves as a protective barrier, reducing corrosion rates by several orders of magnitude.
- Potential Monitoring and Fine-Tuning: The electrical potential between the steel and the reference electrode is continuously monitored. The control system provides real-time adjustments to the current, maintaining the metal securely within the passive zone and preventing both active corrosion at lower levels and transpassive breakdown at higher levels.
- Structural Design: The cooler is engineered to withstand the thermal stresses common in processing environments. Design features, such as rod-configured baffles, minimize tube vibration while simultaneously enhancing heat transfer efficiency.
Core Benefits and Functional Advantages
- Superior Corrosion Control: Anodic protection significantly limits chemical erosion, enabling austenitic stainless steels to operate reliably in environments where they would typically be unsuitable—thereby ensuring ongoing operational safety.
- Extended Equipment Lifespan: Through consistent maintenance of the passive oxide film, the unit remains protected from chemical attack, delivering substantially longer service life compared to unprotected alternatives.
- Enhanced Heat Transfer: The system design promotes turbulent acid flow and utilizes high-performance heat transfer surfaces, which are essential for precise temperature control and optimal energy efficiency.
- System Reliability: With stable protective parameters and comprehensive monitoring capabilities—including remote diagnostic tools in newer models—the risk of acid leakage and unplanned shutdowns is significantly reduced.
- Heat Recovery Capability: By enabling safe operation at elevated temperatures (reaching up to 160°C or higher), these systems facilitate the capture of valuable waste heat, thereby improving the overall energy efficiency of sulfuric acid plants.
Jiangsu Carpe Diem Ocean Equipment Co., Ltd. provides these premium cooling solutions, ensuring customers benefit from durable, low-maintenance equipment engineered to meet the rigorous demands of large-scale sulfuric acid production.
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Company
Jiangsu Carpe Diem Ocean Equipment Co., Ltd.
Location
Nanyou Mansion, #66 Xinmofan Road, Gulou District, Nanjing, China
Contact Person
Leonard Chang