Disadvantage of stainless steel tube in condenser

Unsuitable factors for stainless steel tube condenser:

It is more sensitive to chloride, so when stainless steel pipe is used, there is a limit to chloride.

Stainless steel tubes and copper tube sheets will produce galvanic corrosion and zinc corrosion, so cathodic protection should be used.

During shutdown, there will be calcium acid deposits, stainless steel TP304 and TP316 will produce pitting corrosion, so before the unit is out of service for a long time, clean water should be used to flush the water chamber and pipes, and open the water chamber cover, and air dry for two days to avoid water droplets After evaporation, the FeCl-1 concentration is too high and pitting corrosion occurs.

In addition, some power manufacturing companies recommend using stainless steel bellows instead of copper pipes. The heat transfer effect can increase by 25% to 30%. However, the resistance loss of pipes of the same diameter is greater than that of smooth pipes, and it is used in large domestic condensers. There is no performance yet.

Condenser Tube
Advantage of Stainless Steel tube in Condenser
ASTM Standard for Heat-Exchanger and Condenser Tubes
Condenser Tube Specifications
Disadvantage of stainless steel tube in condenser
Why does the condenser need to use stainless steel tubes?
Large Steam System Condensers