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{"title":"Custom Anodic Protection Heat Exchanger for Sulfuric Acid with Corrosion","imgUrl":"https:\/\/img.chinax.com\/nimg\/be\/36\/00c0f638c72e48fb46b2fb8dc076-200x200-1\/custom_anodic_protection_heat_exchanger_for_sulfuric_acid_with_corrosion_resistance_and_high_temperature_performance_first_absorpt.jpg","attrs":{"Brand Name":"Carpe Diem","Model Number":"CD-001","Place of Origin":"China","Minimum Order Quantity":"1"}}
{"title":"Anodic Protection Acid Unit with Electrochemical Passivation for Uniform Fluid","imgUrl":"https:\/\/img.chinax.com\/nimg\/b6\/bc\/7818a45825ad31eb72b22ede0ff5-200x200-1\/anodic_protection_acid_unit_with_electrochemical_passivation_for_uniform_fluid_dispersion_and_corrosion_resistance.jpg","attrs":{"Brand Name":"Carpe Diem","Model Number":"CD-002","Place of Origin":"China","Minimum Order Quantity":"1"}}
welding connection in acid side, flange connection in water side
Materials and specifications
shell
304L δ= 10
Heat transfer tube
316L Φ19×2.0×6000
Tubesheet
304L δ= 55
Baffle-crossing
304L δ= 10
head
Q235-B δ= 12
flange standard
Shell Side
Tube Side
HG/T20592-2009(B) PN10 DN 350
HG/T20592-2009(B) PN10 DN 400
Size
Φ1000×7294×1470
Operating weight
14207 Kg
The scope of supply
●Complete set ●Control system ●Special cable ●Random accessories
Acid Handling Equipment
Jiangsu Carpe Diem Ocean Equipment Co., Ltd. specializes in the engineering and supply of advanced heat transfer systems for the chemical industry, particularly the Anode Protection Sulfuric Acid Cooler. This unit plays a vital role in ensuring safe, efficient, and durable operations within modern sulfuric acid plants.
General Description
The Anode Protection Sulfuric Acid Cooler is a shell-and-tube type heat exchanger designed to lower the temperature of concentrated sulfuric acid—typically in the 93% to 99% range—within the drying and absorption stages of contact process facilities. Given the intensely corrosive nature of hot concentrated acid, conventional construction materials are prone to rapid deterioration. This equipment overcomes such challenges through anodic protection, an electrochemical technique that preserves stainless steel in a passive and corrosion-resistant state.
Technical Principles and Functionality
The system operates on the principle of anodic protection, which maintains stainless steel surfaces (functioning as the anode) within a defined "passive range" of electrochemical potential. This is achieved via a cathodic assembly—typically incorporating extended cathodes inside the shell or pin-type cathodes installed in nozzles—working alongside a reference electrode and a potentiostat that regulates the direct current.
Passivation Process: A low-level direct current is applied to promote the formation of a stable oxide layer on internal surfaces. This layer functions as a protective shield, reducing corrosion rates by several orders of magnitude.
Potential Regulation: The electrochemical potential between the steel and the reference electrode is monitored continuously. The control system adjusts the current as needed to keep the metal securely within the passive zone, preventing both active and transpassive corrosion.
Structural Design: The cooler is constructed to endure thermal stresses inherent in the process. Features such as rod-type baffles help limit tube vibration and contribute to improved heat transfer efficiency.
Performance Advantages
High-Level Corrosion Resistance: Anodic protection effectively suppresses corrosive activity, allowing austenitic stainless steels to perform reliably in environments where they would otherwise be unsuitable—supporting ongoing operational safety.
Longer Service Life: By maintaining a consistent passive layer, the equipment is protected from chemical attack, resulting in a significantly extended lifespan compared to non-protected alternatives.
Efficient Thermal Transfer: The configuration supports turbulent acid flow and incorporates high-performance heat exchange surfaces, which are critical for accurate temperature control and energy management.
Operational Stability: With steady protective parameters and advanced monitoring capabilities—including remote diagnostics in more recent designs—the likelihood of acid leakage and unexpected shutdowns is kept to a minimum.
Heat Recovery Capability: Enabling safe operation at temperatures up to 160°C or more, the cooler supports the recovery of high-grade waste heat, enhancing the overall energy efficiency of the sulfuric acid plant.
Jiangsu Carpe Diem Ocean Equipment Co., Ltd. supplies these high-performance cooling systems, ensuring that clients receive durable, low-maintenance equipment capable of meeting the exacting demands of large-scale sulfuric acid production.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2017
Total Annual:
300$-1200$
Employee Number:
>50
Ecer Certification：
Verified Supplier
Jiangsu Carpe Diem Ocean Equipment Co., Ltd. is headquartered in the Li Shui International Enterprise R&D Park in Nanjing — a historic capital known as the “Ancient City of Six Dynasties.” The facility spans 17,000 square meters, including 8,000 square meters dedicated t... Jiangsu Carpe Diem Ocean Equipment Co., Ltd. is headquartered in the Li Shui International Enterprise R&D Park in Nanjing — a historic capital known as the “Ancient City of Six Dynasties.” The facility spans 17,000 square meters, including 8,000 square meters dedicated t...
