Heat exchange plate for plate heat exchanger, and plate heat exchanger

Abstract

A heat exchange plate for a plate heat exchanger, and a plate heat exchanger having the heat exchange plate. The heat exchange plate includes: a heat exchange plate body; and a ring-shaped flange projecting obliquely from an edge of the heat exchange plate body. The flange has a protrusion having a reinforcing action. The heat exchange plate and plate heat exchanger according to embodiments of the present invention can, for example, improve the quality of the heat exchange plate of the heat exchanger.

1 . A heat exchange plate for a plate heat exchanger, comprising:
 a heat exchange plate body; and   a ring-shaped flange projecting obliquely from an edge of the heat exchange plate body, wherein the flange has a protrusion having a reinforcing action.   
     
     
         2 . The heat exchange plate for a plate heat exchanger as claimed in  claim 1 , wherein:
 the flange has an inner side facing the center of the heat exchange plate and an outer side remote from the center of the heat exchange plate, and the protrusion protrudes toward the inner side or outer side of the ring-shaped flange.   
     
     
         3 . The heat exchange plate for a plate heat exchanger as claimed in  claim 1 , wherein:
 the flange comprises: a first ring-like belt adjoining the heat exchange plate body; and a second ring-like belt which adjoins the first ring-like belt at a side of the first ring-like belt that is remote from the heat exchange plate body, at least a part of the second ring-like belt protruding relative to the first ring-like belt to form the protrusion.   
     
     
         4 . The heat exchange plate for a plate heat exchanger as claimed in  claim 3 , wherein:
 the entire second ring-like belt forms a ring-shaped protrusion; or   the protrusion is multiple protrusions arranged at intervals along the second ring-like belt.   
     
     
         5 . The heat exchange plate for a plate heat exchanger as claimed in  claim 1 , wherein:
 the flange comprises: a first ring-like belt adjoining the heat exchange plate body; a second ring-like belt which adjoins the first ring-like belt at a side of the first ring-like belt that is remote from the heat exchange plate body; and a third ring-like belt which adjoins the second ring-like belt at a side of the second ring-like belt that is remote from the first ring-like belt, at least a part of at least one of the second ring-like belt and the third ring-like belt protruding relative to the first ring-like belt to form the protrusion.   
     
     
         6 . The heat exchange plate for a plate heat exchanger as claimed in  claim 5 , wherein:
 the second ring-like belt protrudes relative to the first ring-like belt to form a ring-shaped protrusion, and the third ring-like belt is flush with the first ring-like belt.   
     
     
         7 . The heat exchange plate for a plate heat exchanger as claimed in  claim 5 , wherein:
 the flange has an inner side facing the center of the heat exchange plate and an outer side remote from the center of the heat exchange plate,   the second ring-like belt protrudes toward the outer side of the ring-shaped flange relative to the first ring-like belt,   the third ring-like belt protrudes toward the outer side of the ring-shaped flange relative to the first ring-like belt, to form a ring-shaped protrusion, and   the amount by which the second ring-like belt protrudes relative to the first ring-like belt is less than the amount by which the third ring-like belt protrudes relative to the first ring-like belt.   
     
     
         8 . The heat exchange plate for a plate heat exchanger as claimed in  claim 1 , wherein:
 the flange comprises a ring-like flange body, the flange body having a belt shape; the protrusion protrudes from the flange body, and the protrusion is a ring-shaped protrusion extending along the entire ring-like flange body.   
     
     
         9 . The heat exchange plate for a plate heat exchanger as claimed in  claim 8 , wherein:
 the protrusion is substantially parallel to the flange body.   
     
     
         10 . The heat exchange plate for a plate heat exchanger as claimed in  claim 1 , wherein:
 the flange comprises a ring-like flange body, the flange body having a belt shape; the protrusion protrudes from the flange body, and the protrusion is multiple protrusions arranged at intervals along the ring-like flange body.   
     
     
         11 . The heat exchange plate for a plate heat exchanger as claimed in  claim 10 , wherein:
 at least one of the multiple protrusions has a linear shape or a strip-like shape.   
     
     
         12 . The heat exchange plate for a plate heat exchanger as claimed in  claim 11 , wherein:
 the at least one of the multiple protrusions crosses the ring-like flange body.   
     
     
         13 . The heat exchange plate for a plate heat exchanger as claimed in  claim 11 , wherein:
 the at least one of the multiple protrusions is substantially perpendicular to the ring-like flange body.   
     
     
         14 . The heat exchange plate for a plate heat exchanger as claimed in  claim 12 , wherein:
 the at least one of the multiple protrusions extends over the entire width of the belt-shaped flange body.   
     
     
         15 . The heat exchange plate for a plate heat exchanger as claimed in  claim 10 , wherein:
 the multiple protrusions have a linear shape or a strip-like shape, a first protrusion of the multiple protrusions is substantially parallel to a part of the ring-like flange body on which the first protrusion is arranged, and a second protrusion of the multiple protrusions is substantially perpendicular to a part of the ring-like flange body on which the second protrusion is arranged.   
     
     
         16 . The heat exchange plate for a plate heat exchanger as claimed in  claim 15 , wherein:
 when viewed in a direction perpendicular to the heat exchange plate body, the first protrusion and the second protrusion extend in substantially the same direction.   
     
     
         17 . The heat exchange plate for a plate heat exchanger as claimed in  claim 1 , wherein:
 the height of the protrusion is in the range of 0.05 mm-0.5 mm.   
     
     
         18 . The heat exchange plate for a plate heat exchanger as claimed in  claim 1 , wherein:
 the height of the protrusion is in the range of 0.05 mm-0.2 mm.   
     
     
         19 . A plate heat exchanger, comprising:
 multiple heat exchange plates, at least one of the multiple heat exchange plates being the heat exchange plate as claimed in  claim 1 .   
     
     
         20 . The plate heat exchanger as claimed in  claim 19 , wherein:
 the multiple heat exchange plates comprise a first heat exchange plate and a second heat exchange plate which are adjacent to each other; a protrusion of a flange of the first heat exchange plate protrudes toward a side remote from a flange of the second heat exchange plate, and a gap is formed between the protrusion of the flange of the first heat exchange plate and the flange of the second heat exchange plate, the gap being filled with solder for soldering the plate heat exchanger, in order to solder together the protrusion of the flange of the first heat exchange plate and the flange of the second heat exchange plate.