Heat exchanger plate for a plate heat exchanger with a particular heat exchange area

Abstract

A heat exchange area (4) of a heating plate (1) of a plate heat exchanger having corrugations, wherein the corrugations have additional local corrugations on their front and/or side surfaces forming notches (45, 4F) and the apex line (4L) of the corrugations has discontinuous form, preferably it is a polygonal curve or a wavy line.

1 . A heat exchange area of the heating plate of the plate heat exchanger having corrugations characterized in that the corrugations comprise additional local corrugations on their front and/or side surfaces forming notches ( 4 S,  4 F) and the apex line ( 4 L) of the corrugations has discontinuous form. 
     
     
         2 . The heat exchange area according to  claim 1 , characterized in that the additional local corrugations are characterized by the following parameters:
 the opening angle ( 4   a ) between the axis along which the top of the apex line ( 4 L) of the corrugation is drawn and the axis parallel to the top of the apex line ( 4 L) of the corrugation has a value from 90° to 179°;   one of the acute angles ( 4   y ) of the triangle formed by the points of intersection of the top of the apex line ( 4 L) of the corrugation with the axis along which the top of the apex line ( 4 L) of the corrugation is drawn and the point ( 4   a ) furthest from the axis along which the apex line ( 4 L) of the corrugation is drawn, and at the same time lying on the apex line ( 4 L) of the corrugation has a value from 1° to 89°;   the number of points ( 4   a ) furthest from the axis along which the apex line of the corrugation ( 4 L) is drawn, and at the same time lying on the apex line ( 4 L) of the corrugation is at least 2 for every 200 mm of the length of the axis along which the apex line ( 4 L) of the corrugation is drawn;   the distance ( 4   b ) between the points ( 4   a ) farthest from each other, and at the same time lying on opposite sides of the axis along which the apex line ( 4 L) of the corrugation is drawn has a value in the range from 1 to 2000% of the value of the base of the isosceles triangle, whose sides form, in section ( 1 - 1 ), the lines along which the lateral surface of the corrugation is drawn;   the angle of inclination ( 4   s ) of the lateral corrugation surface has a value from 1° to 89°;   the radius of rounding ( 4   d ) the top of the corrugation has a value from 0.1 mm to 1000 mm.   
     
     
         3 . The heat exchange area according to  claim 1 , characterized in that the apex line ( 4 L) of the corrugations is in the form of a wavy line ( 4 F), an angle between an axis along which the apex line ( 4 L) of the corrugation is drawn and a straight line intersecting a point ( 4   a ) furthest from the axis along which the apex line ( 4 L) of the corrugation is drawn, and simultaneously lying on the apex line ( 4 L), and a point of intersection of this line with the axis along which the apex line ( 4 L) of the corrugation is drawn, is an opening angle ( 4   a ). 
     
     
         4 . The heat exchange area according to  claim 1 , characterized in that the apex line ( 4 L) of the corrugations is in the form of a polygonal curve ( 4 S), an angle between the axis along which the apex line ( 4 L) of the corrugation is drawn and an axis parallel to the apex line ( 4 L) of the corrugation, is the opening angle ( 4   a ).