Plate heat exchanger
OwnerKai SHI, Zhixuan AN +1inventors
InventorsKai SHI, Zhixuan AN, Zhifeng ZHANG
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Abstract
A plate heat exchanger includes a plurality of heat transfer plates, the plurality of heat transfer plates including: a first heat transfer plate, including protrusions protruding upward, the protrusions having a top; and a second heat transfer plate stacked on the first heat transfer plate, the second heat transfer plate includes recesses recessed downward, the recesses having a bottom. The tops of the protrusions have a concave portion which is sunken downward, and at least part of the bottoms of the recesses of the second heat transfer plate is disposed in the concave portion of the tops of the protrusions of the first heat transfer plate. It is thus possible to improve the weld quality of the heat exchanger.
Claims20
A plate heat exchanger, comprising a plurality of heat transfer plates, the plurality of heat transfer plates comprising:
- a first heat transfer plate comprising a protrusion protruding upward, the protrusion having a top;
- and
- a second heat transfer plate stacked on the first heat transfer plate and comprising a recess sunken downward, the recess having a bottom,
- wherein a top of the protrusion has a concave portion sunken downward, and at least a part of a bottom of the recess of the second heat transfer plate is located in the concave portion at the top of the protrusion of the first heat transfer plate.
Dependencies are inferred from the claim text.