Mike4chemic
Chemical
Dear Colleagues,
I would like to consult with you regarding the following issue.
We use a mixture of hot brine and condensate as a heating agent in the preheater.
The water and condensate is mixed at the preheater inlet. The brine pressure at the mixing point is 10barg while the condensate initial pressure is 5 barg only and therefore it increases to 10 barg by a condensate pump equipped with an automatic by-pass valve. At the preheater outlet there is a back pressure control valve, its function is to keep the pressure at the mixing point above the brine's vapor pressure to avoid flashing. The pressure downstream of the back-pressure valve is 1 barg.
Is it correct to assume that in case of the condensate pump failure the pressure in the mixing point decreases to 5 barg according to the condensate pressure or pressure will be 10 barg, which will cause a condensate boot flooding?
The process scheme is attached.
Regards, Mike
I would like to consult with you regarding the following issue.
We use a mixture of hot brine and condensate as a heating agent in the preheater.
The water and condensate is mixed at the preheater inlet. The brine pressure at the mixing point is 10barg while the condensate initial pressure is 5 barg only and therefore it increases to 10 barg by a condensate pump equipped with an automatic by-pass valve. At the preheater outlet there is a back pressure control valve, its function is to keep the pressure at the mixing point above the brine's vapor pressure to avoid flashing. The pressure downstream of the back-pressure valve is 1 barg.
Is it correct to assume that in case of the condensate pump failure the pressure in the mixing point decreases to 5 barg according to the condensate pressure or pressure will be 10 barg, which will cause a condensate boot flooding?
The process scheme is attached.
Regards, Mike