| 摘要 |
PURPOSE: A plate heat exchanger which has a structure for relieving thermal shocks is provided to extend the durability of a device that includes the plate heat exchanger by reducing stress concentration and fatigue stress on linings. CONSTITUTION: A plate heat exchanger which has a structure for relieving thermal shocks comprises a frame(100), a plurality of heat transfer plates, a top lining(120), a bottom lining(130), columns(200) which are welded between the top and bottom linings and have corners cut out to form shock-absorbing surfaces, column liners(300) which are extended in the longitudinal direction of the columns and have a plurality of grooves on a side in which the vertexes of the heat transfer plates are inserted, and a stress distributing unit. The other side of each column liner is split into two parts and coupled to both sides of a column, thereby forming a shock-absorbing space between the column liner and the column. |
