Advantages of flue gas heat exchanger:
1. The tube bundle can be drawn out to facilitate cleaning of the tube and shell side;
2. The temperature difference between the media is not restricted;
3. It can work under high temperature and high pressure, generally the temperature is less than or equal to 450 degrees, and the pressure is less than or equal to 6.4 MPa;
4. It can be used in occasions with serious scaling;
5. It can be used in the occasions where the tube is easy to be corroded.
Disadvantages of flue gas heat exchanger:
1. The small floating head is prone to internal leakage;
2. The consumption of metal materials is large, and the cost is 20% higher;
3. The structure is complex.