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Anodically Protected Sulfuric Acid Cooler Corrosion Resistance Second Absorption

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Anodically Protected Sulfuric Acid Cooler Corrosion Resistance Second Absorption
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Acid Cooler Anodically Protected

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Acid Cooler Corrosion Resistance

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sulfuric acid cooler Second Absorption
Basic Infomation
Place of Origin: China
Brand Name: Carpe Diem
Model Number: CD-001
Payment & Shipping Terms
Packaging Details: Naked
Delivery Time: 60 Workdays
Payment Terms: T/T
Supply Ability: 1000/year
Product Description

Anodically Protected Sulfuric Acid Cooler with High Heat Transfer Efficiency and Corrosion Resistance Second Absorption Acid Cooler

 

 

Process parameters

Project

Design parameters

Performance parameters

 
Shell Side
Tube Side
Shell Side
Tube Side

MEDIUM

Fluid name
Sulfuric Acid
98%
Cooling Water
Sulfuric Acid
98%
Cooling Water

 

Temperature (Inlet)  ℃
60
32
60
32

 

Temperature (Outlet)℃
40
40
40
39.83

 

Liquid Kg/h
36800
 
36800
33000

 

Density(inlet/outlet) Kg/m3
1840
1000
1840
1000

 

Viscosity(inlet/outlet)(cp)
7.9
0.76
7.9
0.76

 

Inlet pressure Mpa
0.5
0.3
0.5
0.3

 

Pressure drop, Mpa
≤0.1
≤0.1
0.0007
0.0002

PERFORMANCE

Heat exchanged quantity W
 
～299102.2

 

Flow rate m/s
 
0.059
0.142

 

Heat transfer area affluent coefficient
 
1.15

 

Heat transfer coefficient W/m2 ℃
 
266.349

 

Heat transfer area m2
 
125

MATERIAL

Type
shell and tube
The flow form
counter-current flow

 

Sealing form
welding connection in acid side, flange connection in water side

 

Materials and specifications
shell
304     δ= 5

 

 
Heat transfer tube
316L    Φ19×1.5×6000

 

 
Tubesheet
304     δ= 35

 

 
Baffle-crossing
304     δ= 5

 

 
head
Q235-B  δ= 5

 

Flange standard
Shell Side
Tube Side

 

 
HG/T20592-2009(B) PN10 DN 80
HG/T20592-2009(B) PN10 DN 100

Size
Φ600×7274×1060

Operating weight
5844 Kg

The scope of supply
●Complete set                                              ●Control system
         ●Special cable                                              ●Random accessories
High Quality Sulfuric Acid Drying Anodically Protection Cooler
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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Sulfuric Acid Cooler

acid cooler

dry acid cooler

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Tel : +8618602560456
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+8618602560456
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