What to do if the marine heat exchanger is dirty

1. Passivation treatment:

Mix NaOH, Na 3P04 and demineralized water according to a certain proportion, use the dynamic circulation method to wash the heat exchanger, and the marine heat exchanger is washed to make the pH >7 and then rinsed with water. The purpose is to neutralize residual acid and protect the heat exchanger from corrosion. The cleaning procedures of imported heat exchangers are more complicated, the cost is higher, and the results are not easy to observe, especially during the operation period.

2. Water backwash:

Connect the pump, pipeline and heat exchanger in the opposite direction to the running direction, and use water with a certain pressure for continuous open flushing, as far as possible to clean up the debris blocking the heat exchanger.

3. Pickling:

Formic acid, corrosion inhibitors, surfactants and soft water are usually prepared according to certain examples. After the marine heat exchanger manufacturers will add the heat exchanger from bottom to top, after soaking for a certain time, let it and After the reaction of the adequacy of scale, cycle pickling is carried out, after which the dilution is discharged. Through the above, it is no longer possible to remove all the dirt inside the marine heat exchanger.

Jiangyin M&C Heat Parts Co.,LTD worked in the field of the world marine plate heat exchanger markets, possesses over 5 years of experience in a multitude of marine Projects, serves ships trading in the all corners of the globe, manufactures and distributes spare parts for the offshore and onshore industry, uses state of the art technology in its activities.