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Heat exchanger trip

Heat exchanger trip

Heat exchanger trip

(OP)
Guys,

We recently had a problem with the condensate fin fan cooler on our plant. It tripped several times due to high temperature (75 C). The thing is it is intended to cool condensate but for whatever reason we get MEG (Mono Ethylene Glycol)and emulsion in there too. We removed a few plugs and inspect the tubes and the inlet and outlet box. Nearly clean but inside the inlet box, there is a vertical devider plate which split the box into halves. We found a nearly 4mm gap between the vertical plate and the two horizental plates in the inlet box. This means the flow is partially bypassing and hot liquid finds its way through these gaps to the outlet. I do not think that is something to worry about as the reason for the recent trips. The upstream equipment are a condensate column and a reboiler. The actual FIT upstream of the coulumn shown the flow is erratic and not steady. It is variable betweem 0 and 10 m3/hr.The air temp is 11C.
I will appreciate any valuable advise on what the issue can come from.

Rgds

RE: Heat exchanger trip

hello,

what are the inlet and outlet temp? what is the source of MEG? CAN YOU GIVE SOME COSTRUCTION DETAILS OF THE FIN FAN COOLER?

Regards,
           roker

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