What is the service life of the heat exchanger?
Thread Content
What is the general service life of flue gas heat exchangers using 2.0mm, 2.5mm, 3.0, 3.5 wall thickness stainless steel tubes? Smoke goes outside the tube and steam goes inside the tube. The flue gas is weakly acidic and has very little acidity.
This question should be mentioned in the manual that comes with it~~ Different heat exchangers have different lifespans. It’s hard to say this question.
In fact, the design life of the heat exchanger does not explain anything. The service life of the equipment is different under different working conditions. Specifying the design life does not mean that the equipment can be used for such a long time.
In principle, it should be 20 years, but the medium is very complex and corrosion is easy to occur. I estimate the service life to be about 3-5 years.
The service life of the heat exchanger still depends on the process conditions and operating conditions of its operation. If used and maintained properly, it can still live a long time.
As the poster said, the key to the service life of this kind of flue gas heat exchanger is how well the system is maintained when it is shut down. Because during the shutdown period, acid water will inevitably be produced in the heat exchanger. If not treated in time, it will * * Reduce the service life of the heat exchanger. When parking, be sure to take various precautions according to regulations.
The life of the equipment is closely related to the flow rate of the flue gas, dust content, temperature, humidity, dust sealing of the acidic medium, acidity, usage and other factors. Changes in one of them will affect its life, so its true life is unclear.
I agree with everyone above. It is meaningless to talk about the service life of the heat exchanger alone. Different working conditions will limit the service life of the heat exchanger due to corrosion, blockage, etc. The materials in the flue gas are the determining factor for the service life of the heat exchanger. Sir, you can tell me about the composition of the flue gas, saying that it contains acid, but what kind of acid is it specifically? Is it a weak acid? If it is hydrochloric acid, even if the content is small, it will have a strong corrosive effect. If it is convenient for the poster, it is best to describe the main components of the smoke and ask experienced seniors to analyze it for you. This post was finally written by wode * Edited by aohei on 2009-2-4 16:57 ]