A plate for a heat exchanger

Abstract

A plate for a heat exchanger is disclosed. The plate includes a peripheral rib defining a boundary of the plate and a plurality of corrugations formed within the peripheral rib of the corresponding plate. The corrugations formed on the plate in conjunction with corrugations formed on adjacent overlapping plates define first fluid flow passages “A” and second fluid flow passages “B” on opposite sides of the plate. The second fluid flow passages “B” are adjacent to the first fluid flow passages “A”. A first set of inlet and outlet holes define a first inlet and outlet that are in fluid communication with the first fluid passages “A”. A second set of inlet and outlet holes define a second inlet and outlet that are in fluid communication with the second fluid passages “B”.

1 . A plate for a heat exchanger,
 the plate comprising:   a peripheral rib defining a boundary of the plate; and   a plurality of corrugations formed within the peripheral rib of the corresponding plate,   wherein the corrugations formed on the plate in conjunction with corrugations formed on adjacent overlapping plates define first fluid flow passages “A” and second fluid flow passages “B” on opposite sides of the plate,   wherein the second fluid flow passages “B” are adjacent to the first fluid flow passages “A”,   wherein a first set of inlet and outlet holes define a first inlet and outlet that are in fluid communication with the first fluid passages “A”, and   wherein a second set of inlet and outlet holes define a second inlet and outlet that are in fluid communication with the second fluid passages “B”,   wherein at least one of the plates comprises at least one blocking element formed on the plate and adapted to at least partially block a gap between at least one corrugation and the corresponding peripheral rib.   
     
     
         2 . The plate as claimed in  claim 1 ,
 wherein the corrugations are angular corrugations that are diverging from an axis “C” of the plate towards the corresponding peripheral rib.   
     
     
         3 . The plate as claimed in  claim 1 ,
 wherein the blocking element extends from at least one peripheral rib and an extreme end of at least one corrugation.   
     
     
         4 . The plate as claimed in  claim 1 ,
 wherein the blocking element extends from a peripheral rib till an extreme end of at least one corrugation.   
     
     
         5 . The plate as claimed in  claim 1 ,
 wherein the blocking element extends from an extreme end of at least one corrugation till the corresponding peripheral rib.   
     
     
         6 . The plate as claimed in  claim 1 ,
 wherein the blocking element extends from at least one of the adjacent plates, and   wherein the blocking element is adapted to at least partially block a gap between an extreme end of at least one corrugation and the corresponding peripheral rib formed on one of the adjacent plates.   
     
     
         7 . The plate as claimed in  claim 1 ,
 wherein the blocking element is inclined towards the corrugations and directs fluid to the fluid flow passages defined by the corrugations.   
     
     
         8 . A heat exchanger comprising:
 a plurality of plates stacked overlapping with respect to each other, each plate comprising:
 a peripheral rib defining a boundary of the plate;
 a plurality of corrugations formed on a plate in conjunction with corrugations on an adjacent overlapping plate, which together define first fluid flow passages “A” and second fluid flow passages “B” on opposite sides of the plate, 
 wherein the second fluid flow passages “B” are adjacent to the first fluid flow passages “A”; 
 
 a first and second set of inlet and outlet holes, 
 a first inlet and outlet defined by the first set of inlet and outlet holes,
 wherein the first inlet and outlet are in fluid communication with the first fluid flow passages for ingress and egress of first fluid with respect to the first fluid passages “A”; and 
 
 a second inlet and outlet defined by the second set of inlet and outlet holes,
 wherein the second inlet and outlet are in fluid communication with the second fluid flow passages for ingress and egress of second fluid with respect to the second fluid passages “B”, 
 
 wherein at least one of the plates comprises at least one blocking element formed on the plate and adapted to at least partially block a gap between an extreme end of at least one corrugation and the corresponding peripheral rib. 
   
     
     
         9 . The heat exchanger as claimed in  claim 8 ,
 wherein the first inlet and outlet are defined by aligning a first set of inlet and outlet holes formed on the respective adjacent plates.   
     
     
         10 . The heat exchanger as claimed in  claim 8 ,
 wherein the second inlet and outlet are defined by aligning the second set of inlet and outlet holes formed on the respective adjacent plates.