Pipe material requirements for economizer pipes

The pipe material requirements for economizer pipes usually have the following characteristics:

1. Corrosion resistance: Since the flue gas may contain corrosive substances, such as acidic gases and particulate matter, the pipes of the economizer pipes need to have good corrosion resistance to ensure long-term stable operation. Common choices include stainless steel, alloy steel, etc.

2. High temperature resistance: The economizer pipes is in a high-temperature environment, so the pipe needs to be able to withstand thermal stress and thermal expansion at high temperatures while maintaining sufficient strength and stability. High temperature resistant alloy steel or other materials with high temperature stability are usually used.

3. Heat transfer performance: The economizer pipes are used to condense water vapor in the flue gas. The selected pipe material needs to have good thermal conductivity to improve heat transfer efficiency. In general, metal materials with good thermal conductivity such as copper and aluminum can be considered.

4. Strength and weldability: Pipes need to have sufficient strength and rigidity to withstand internal pressure and external loads. In addition, weldability is an important consideration for pipe connections and installation. Common choices include carbon steel, alloy steel, etc.

To sum up, the pipe materials of the economizer pipes need to have corrosion resistance, high temperature resistance, good heat transfer performance, sufficient strength and weldability. Specific pipe selection should be evaluated and decided based on the actual application environment, operating conditions and design requirements.

economizer pipes