Anodic Protection System

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Anodic Protection Acid Coolers

Anodically protected shell acid coolers with stainless steel tubing are highly efficient coolers that are extensively used in the process of producing sulfuric acid. Due to their advanced technology, excellent corrosion-resistance and long service lifespan, an estimate of 75% of all sulfuric acid production lines in the world use coolers with anodic protection shell and stainless steel tubes.

Advantages of Anodic Protection Acid Cooler:

• LONG LIFESPAN
  • excellent corrosion-resistance, corrosion rates 0.01-0.03mm/a
  • service life exceeds 10 years
• WIDE APPLICATION RANGE
  • cooling of concentrated sulfuric acid 92-99%
  • operation temperatures up to 125℃
  • river water, ground water and industrial circulating water
• LOW MAINTENANCE COST

Anodic Protection Acid Distributors

Many acid distributors in major facilities rely on a distribution structure made of cast iron. Cast iron distributors have a several deficiencies and inadequacies, they might only have 12 acid distribution points, acid distribution is nonuniform, their service life is short and due to their weight installation can be complicated.
One of SSP's recent major technical advances in the field was the introduction of anodically protected shell sulfuric acid coolers with stainless steel tubing in drying and absorption units that greatly contribute to stabilizing the sulfuric acid production process.
SSP offer several types of distributors, including:

1. Trough Type Distribution
2. Pipe Type Distribution
3. Trough-Pipe Type Distribution

Advantages of Anodic Protection Acid Distributors

LONG LIFESPAN
• excellent corrosion-resistance, corrosion rates 0.01-0.03mm/a
• service life of more than 8 years
• HIGH EFFICIENCY
• 22 – 45 distribution points/m2, reducing the height of the filling tower
• gas flow and splashing minimized
• uniform acid distribution

Anodic Protection Piping

Conventionally, cast iron pipes and plastic pipe are used for the transportation of sulfuric acid in production lines. The lifetime of cast iron pipes depends on their thickness, making a piping excessively heavy and bulky, which results in shorter units and thus in greater numbers of linking flanges. This in turn increases the risk for leakage due to corrosion, brittle cracking and other major damages. Plastic and fluroplastic piping, while being fairly resistant to corrosion, are not suitable substitutions as they are unable to resist the pressures generated during starting up and shutting down of acid pumps and suffer from temperature swings.
Due to their high resistance to both corrosion and pressure, anodically protected stainless steel pipes are ideal for the transportation of concentrated sulfuric acid at high temperatures. With a service lifespan that ordinarily exceeds 10 years, anodically protected piping solves the leakage problem in sulfuric acid plants.

Advantages of Anodic Protection Pipes

LONG LIFESPAN
• excellent corrosion-resistance, corrosion rates 0.01-0.03mm/a
• service life of over 10 years

LOW MAINTENANCE
• high performance-price ratio.
• easy installation and operation
• lightweight flanges with welded structure

WIDE APPLICATION RANGE
• use of many austenitic steels, such as 304, 304L, 316, 316L

High-Silicon Stainless Steel Distributors

The high-silicon stainless steel distribution pipes are the main product in this series. With outstanding corrosion resistance, it meets nearly all corrosion and processing technology demands.

Advantages of High- Silicon Stainless Steel Distributors

LONG LIFESPAN
• service lifespan of over 10 years
• use of high-silicon stainless steel makes anodic protection redundant

HIGH EFFICIENCY
• up to 45 distribution points/m2, reducing height of filling tower
• large surface area of tower and low distribution points minimize gas flow and splashing
• uniform acid distribution

Anodic Protection Stainless Steel Acid Tanks

Anodically Protected Stainless Steel Acid Tanks are a product with a technology newly introduced by SSP. Due to anodic protection technology, materials such as 304, 304L, 316 and 316L have a low corrosion rate (0.01~0.03mm/a) when exposed to 92%~98% H2SO4 at 80℃. Additionally, GAOYUAN Anodic Protection Stainless Steel Acid Tanks have many advantages such as easy installation, low maintenance and a longer lifespan than traditional acid tanks.

Advantages of Anodic Protection Stainless Steel Acid Tanks

LONGER LIFE
• excellent corrosion-resistance, corrosion rates 0.01-0.03mm/a

LOW MAINTENANCE
• high performance-price ratio
• easy to install and operate

WIDE APPLICATION RANGE
• horizontal tanks
• vertical tanks