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.

Claims

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 (4S, 4F) and the apex line (4L) 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 (4a) between the axis along which the top of the apex line (4L) of the corrugation is drawn and the axis parallel to the top of the apex line (4L) of the corrugation has a value from 90° to 179°; one of the acute angles (4y) of the triangle formed by the points of intersection of the top of the apex line (4L) of the corrugation with the axis along which the top of the apex line (4L) of the corrugation is drawn and the point (4a) furthest from the axis along which the apex line (4L) of the corrugation is drawn, and at the same time lying on the apex line (4L) of the corrugation has a value from 1° to 89°; the number of points (4a) furthest from the axis along which the apex line of the corrugation (4L) is drawn, and at the same time lying on the apex line (4L) of the corrugation is at least 2 for every 200 mm of the length of the axis along which the apex line (4L) of the corrugation is drawn; the distance (4b) between the points (4a) farthest from each other, and at the same time lying on opposite sides of the axis along which the apex line (4L) 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 (4s) of the lateral corrugation surface has a value from 1° to 89°; the radius of rounding (4d) 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 (4L) of the corrugations is in the form of a wavy line (4F), an angle between an axis along which the apex line (4L) of the corrugation is drawn and a straight line intersecting a point (4a) furthest from the axis along which the apex line (4L) of the corrugation is drawn, and simultaneously lying on the apex line (4L), and a point of intersection of this line with the axis along which the apex line (4L) of the corrugation is drawn, is an opening angle (4a).

4. The heat exchange area according to claim 1, characterized in that the apex line (4L) of the corrugations is in the form of a polygonal curve (4S), an angle between the axis along which the apex line (4L) of the corrugation is drawn and an axis parallel to the apex line (4L) of the corrugation, is the opening angle (4a).

Description

BRIEF DESCRIPTION OF DRAWINGS

[0023] The object of the disclosure is illustrated in the drawing, in which:

[0024] FIG. 1 shows a heating plate of a plate heat exchanger in a front view with detail referring to the corrugations system and marking the zones through which the operating medium flows;

[0025] FIG. 2 shows corrugation arrangement with reference to the face of the plate;

[0026] FIG. 3 and FIG. 4 show corrugation arrangement with respect to the side surface of the heating plate corrugations, and

[0027] FIG. 5 shows a view of an exemplary heat exchanger using heating plates having a heat exchange area shaped according to the disclosure.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

[0028] The heating plate (1) has areas on its surface through which the working medium flows: the port area (2), the working medium distribution area (3) and the effective heat exchange area (4). The effective heat exchange area (4) has a surface, the shape of which is corrugated (FIG. 2) and is characterized by the feature that the corrugations have additional local corrugations (4S, 4F) on their side surface, and the apex line (4L) of the corrugations is shaped in the form of a polygonal curve. The additional corrugations have the following parameters: the opening angle (4a) between the axis along which the top of the apex line (4L) of the corrugation is drawn. and the axis parallel to the top of the apex line (4L) of the corrugation has a value of 150°; one of the acute angles (4y) of the triangle formed by the points of intersection of the top of the apex line (4L) of the corrugation with the axis along which the top of the apex line (4L) of the corrugation is drawn and the point (4a) furthest from the axis along which the apex line (4L) of the corrugation is drawn, and at the same time lying on the apex line (4L) of the corrugation has a value of 30°; the number of points (4a) furthest from the axis along which the apex line of the corrugation (4L) is drawn, and at the same time lying on the apex line (4L) of the corrugation is 50 for every 200 mm of the length of the axis along which the apex line (4L) of the corrugation is drawn; the distance (4b) between the points (4a) farthest from each other, and at the same time lying on opposite sides of the axis along which the apex line (4L) of the corrugation is drawn has a value of 3 mm; the angle of inclination (4o) of the lateral corrugation surface has a value of 60°; the radius of rounding (4d) the top of the corrugation has a value of 5 mm.

[0029] The heating plate (1) is part of a alternately laid heating plates package (6) being part of a plate heat exchanger (5). In addition, the heat exchanger (5) may have cover plates (7) and nozzles (8) used for mounting and connecting heat exchanger (5) elements. The elements of the heat exchanger (5), in particular the heating plates (1), are made of stainless steel, but can also be made of titanium, its alloys or of various metals and/or metal alloys and/or non-metals and/or plastics and or composite materials. Connecting the components of the heat exchanger (5) is done through the soldering process, but it can also be done by welding or gluing, or by screwing. This provides a wide range of applications in the industry, including energy, pharmaceutical, food, petrochemical, chemical, mining, at pool installations, HVAC, HVACR and sewage treatment plants.