Exchanger system comprising two heat exchangers

Abstract

An exchanger system comprising two heat exchangers, a bypass line which extends between an inlet and an outlet, a line connected between the bypass line and a first orifice of each heat exchanger, a return line connected to two second orifices of the two heat exchangers and to the bypass line, three valves, and a controller which commands each valve alternately to open or to close. With such an arrangement, the intensities of the pressure peaks due to plugs are limited by distribution of the flow of the heat-transfer fluid in two parallel lines.

1 . An exchanger system containing a heat-transfer fluid and comprising:
 a first heat exchanger and a second heat exchanger, in which each exchanger comprises a first orifice and a second orifice,   a bypass line which extends between an inlet and an outlet,   a first line fluidically connected between the bypass line and the first orifice of the first heat exchanger between the inlet and the outlet of the bypass line,   a second line fluidically connected between the bypass line and the first orifice of the second heat exchanger between the first line and the outlet of the bypass line,   a return line fluidically connected to the two second orifices of the first and second heat exchangers and to the bypass line between the second line and the outlet of the bypass line,   a first valve mounted on the bypass line between the first line and the second line,   a second valve mounted on the bypass line between the second line and the return line,   a third valve mounted on the return line between the two second orifices and the bypass line, and   a controller which commands each valve alternately to open or to close.   
     
     
         2 . The exchanger system according to  claim 1 , wherein, from an open position of the first valve, from an open position of the second valve, and from a closed position of the third valve, the controller is configured to command an opening of the third valve and a closing of the second valve. 
     
     
         3 . The exchanger system according to  claim 2 , wherein, from a state that is thus reached by the opening of the third valve and the closing of the second valve, the controller is configured to command a closing of the first valve, an opening of the second valve and a closing of the third valve.