Plate and Frame Heat Exchanger Fouling

You must prevent biological growth by continously dosing the biocide while the PHE is on duty.

wrong application for plate and frame exchanger. You should be using shell and tube with seawater tube side, and automatic system for feeding 'scrubbing balls' -properly sized somewhat abrasive foam balls-. The balls exiting are captured in a screen basket and recycled to the feeder. Used all the time in power plants. Keeps heat transfer coefficient constant.

P&F exchangers should be used ONLY in non-fouling service unless in constant operation with continual biocide injection.

I suggest you investigate the systems used in US Navy ships for DI (drinking water) production.

Right on, Guest.

....standby unit - isolate unit,..drain sea water side, fill it with fresh water(dump some anti-fouling chemie.)...and when you put it into operation, simply reconnect the sea water circuit(open the valves),.....try-it!

http://www.merusonline.com/

Does anyone know anything about the product this link takes you to? Does it work well on heat exchangers like the one described in this thread?

I also have plate heat exchangers with seawater on one side. The difference (I'm guessing)is that my seawater is filtered to 1 micron then double sterilised with two UVC's. Mine stay clean for a long time but I guess you wont be able to justify a setup like this because of cost. I'm also guessing that you are using the seawater to cool the distilled water whereas I'am trying to cool the seawater itself for use in an aquaculture hatchery.

Are you still interested in this subject?

Thanks

Mike