As mentioned before, because of its special design, the plate and shell heat exchanger will not produce a lot of dirt, but after a long time of use, various media will also leave their sludge or sediment, which is inevitable. The so-called right medicine, precise policy, so what are these sediments, how should they be removed?
After our long-term research and years of experience analysis of the customer's working conditions, the main fouling types of plate and shell heat exchangers are calcium sulfate-CaSO4, silicate, calcium carbonate-CaCO3, alumina-Al2O3, metal Oxide, powder fixation, shellfish, seaweed, wood chips, biofouling.
Now that the source has been found, it is necessary to administer the right medicine. So, how should the different types of dirt be treated? In fact, in the face of these, as long as the correct cleaning agent is used, it can be cleaned. The following is the cleaning agent recommended by Qingdao Ruipute. Hurry up and store it!
CaSO4, silicate type dirt——recommended to use citric acid, nitric acid, phosphoric acid or sulfamic acid cleaning agent;
CaCO3type dirt——recommended to use 10% concentration of nitric acid;
Al2O3, metal oxide, powder——recommended to use citric acid, nitric acid, phosphoric acid or sulfamic acid cleaning agent;
Fixtures, shellfish, seaweed and wood chips——recommended to be backwashed multiple times;
Sodium carbonate or sodium hydroxide——recommended for biological attachment;
how about it? Learned it! Practice has proved that frequent cleaning and maintenance will extend the service life of the plate and shell heat exchanger, so do n’t hesitate to check your equipment regularly.
When there is a problem with your plate and shell heat exchanger, of course, it may only be a reduction in heat exchange efficiency. Then you should pay attention to it. Maybe it is too much dirt. Read this cleaning guide carefully. I believe it will be able to Help you!
Food grade plate heat exchanger
Plate And Shell Heat Exchanger