Challenge

A Northeastern manufacturing facility was experiencing severe corrosion in their steam condensate system. It was thought that dissolved oxygen, carbon dioxide and/or other non-condensable gases were the problem. The challenges faced by plant operating and maintenance personnel were:

• Replacement of corroded parts
• Increased blowdown in boilers to remove accumulated corrosion products
• Reduced heat transfer due to the insulating effect of the corrosion
• Unscheduled downtime for cleaning and replacement of the corroded parts

The plant manager needed technical assistance and a quick, dependable solution.

Solution

Working with the plant manager, Siemens:

• Conducted a thorough analysis to determine the types and levels of non-condensable gases that were present
• Analyzed the existing water treatment system to determine the extent of corrosion
• Supplied a Permutit® SLH deaerating heater

The Permutit® line of equipment continues to be an important part of the solutions that we can provide. Permutit® SLH deaerating heaters are ideal for all industries, power plants and other facilities where dissolved oxygen, free carbon dioxide and other non-condensable gases are present.

Results

Non-condensable gases are a common problem faced by a multitude of plants throughout the world. Permutit® SLH deaerating heaters ensure:

• Reduced corrosion in condensate systems
• Maximum efficiency as the water is preheated to near steam temperature
• Minimal steam loss
• Simple, inexpensive installation as the deaerator is furnished complete
• Easy maintenance with fully accessible spray valves
• Minimal floor space consumed with unique, compact design