Regarding heat exchanger cleaning
Thread Content
Our company has an acrylic heat exchanger, with acrylic and polypropylene particles flowing in the tube side； Circulating water flows in the shell side, with a flow rate of 400 M3 ； We now suspect severe scaling on the shell side of the heat exchanger. We carried out acid cleaning some time ago, but it had no effect ； I would like to ask if there are any good methods for cleaning heat exchangers that are in continuous use ；
Replace the plate heat exchanger for easy cleaning
Cleaning plate heat exchangers seems even more inconvenient, right?
Perhaps the pipe bank also has an impact on heat exchange
Perhaps the pipe bank also has an impact on heat exchange
Is the hardness of the circulating water checked? It is best to treat it as soft water (by treating the water quality)； Also, in cases with a structural preference for ease of cleaning, the tube bundle can be designed with a square arrangement, allowing it to be removed for cleaning and descaling.
The quality of the circulating water is normal, and it is kept under control in accordance with standards
As the temperature rises and water keeps circulating, ions such as Ca and Mg in the water gradually accumulate, which can lead to serious structural problems. It is necessary to measure the hardness of the water in the circulation system from time to time. Also, taking into account the issue of scale, detachable tube bundles arranged in a square pattern are used to facilitate cleaning; the spacing between the tubes is increased appropriately for easier cleaning, provided that the process requirements are met.
The detachable plate heat exchanger is the easiest to clean; pay attention to the outlet water temperature.