Heat exchanger

Patent metadata

Field	Value
Publication number	US-2016123677-A1
Application number	US-201614993564-A
Country	US
Kind code	A1
Filing date	Jan 12, 2016
Priority date	Nov 19, 2010
Publication date	May 5, 2016
Grant date	—

Abstract

The invention relates to a plate heat exchanger ( 9 ) with a plurality of heat exchanger plates ( 1, 13 ), each comprising at least one section showing indentations ( 2, 3, 14, 15 ), intended to be placed against corresponding indentations ( 2, 3, 14, 15 ) of a heat exchanger plate ( 1, 13 ) of a corresponding design. The heat exchanger ( 9 ) has a first type of indentations ( 2, 14 ) and a second type of indentations ( 3, 15 ), wherein the number of said first type of indentations ( 2, 14 ) and said second type of indentations ( 3, 15 ) are differing.

First claim

What is claimed is:

1 . A plate heat exchanger, comprising:
at least one heat exchanger plate, wherein at least one of said at least one heat exchanger plates has a thickness less than 0.4 millimeters and comprises at least one section showing indentations, intended to be placed against corresponding indentations of heat exchanger plates of a corresponding design, wherein at least a first type of indentations and at least a second type of indentations are provided in the at least one heat exchanger plate, wherein said first type of indentations and said second type of indentations extend in opposing directions from a reference plane of the at least one heat exchanger plate, the first type of indentations being formed with flat top surfaces and the second type of indentations being formed with flat bottom surfaces, wherein the first type of indentations and the second type of indentations are distributed with different densities of indentations so that each indentation of the first type of indentations is bordered by a different number of indentations of the second type of indentations than a number of indentations of the first type of indentations that border each indentation of the second type of indentations, wherein the indentations are formed with curved profiles, and wherein both the flat top surfaces of the first type of indentations and the flat bottom surfaces of the second type of indentations are fixed to flat top surfaces and flat bottom surfaces of the same design, respectively, of indentations of the heat exchanger plates of corresponding design.

2 . The plate heat exchanger according to claim 1 , wherein said first type of indentations and said second type of indentations are of a different size.

3 . The plate heat exchanger according to claim 1 , wherein said first type of indentations and said second type of indentations show essentially the same shape.

4 . The plate heat exchanger according to claim 1 , wherein at least said first type of indentations and/or at least said second type of indentations show at least partially an elliptical shape, a circular shape, a teardrop-like shape, a polygonal shape and/or a symmetric polygonal shape.

5 . The plate heat exchanger according to claim 1 , wherein the number and/or the arrangement of at least said first type of indentations and/or at least said second type of indentations corresponds to the shape of at least said first type of indentations and/or at least said second type of indentations.

6 . The plate heat exchanger according to claim 1 , wherein at least said first type of indentations and/or at least said second type of indentations are arranged, at least in part, along straight lines wherein said lines are arranged with an angle relative to a side edge of the corresponding heat exchanger plate.

7 . The plate heat exchanger according to claim 1 , wherein at least said first type of indentations and/or at least said second type of indentations are arranged, at least in part, in such a way, that at least sectionally at least one of the circulating fluids has to follow a curved fluid path.

8 . The plate heat exchanger according to claim 1 , wherein at least said first type of indentations and/or at least said second type of indentations are arranged, at least in part, in such a way, that at least sectionally at least one straight conduit for at least one of the circulating fluids is formed.

9 . The plate heat exchanger according to claim 1 , wherein at least said first type of indentations and/or at least said second type of indentations are arranged, at least in part, in such a way that at least sectionally at least one conduit for at least one of the circulating fluids is arranged in parallel to at least one of the side edges of the corresponding heat exchanger plate.

10 . The plate heat exchanger according to claim 1 , wherein at least one of said at least one heat exchanger plates is formed, at least partially, of a metal plate and/or a metal alloy plate, wherein said plate comprises, at least sectionally, a coating made out of an adhesive material.

11 . A heat exchanger plate comprising:
at least one section showing indentations, intended to be placed against corresponding indentations of heat exchanger plates of a corresponding design, wherein at least a first type of indentations and at least a second type of indentations are provided, wherein said first type of indentations and said second type of indentations extend in opposing directions from a reference plane of the heat exchanger plate, the first type of indentations being formed with flat top surfaces and the second type of indentations being formed with flat bottom surfaces, wherein the first type of indentations and the second type of indentations are distributed with different densities of indentations so that each indentation of the first type of indentations is bordered by a different number of indentations of the second type of indentations than a number of indentations of the first type of indentations that border each indentation of the second type of indentations, wherein the indentations are formed with curved profiles, wherein the heat exchanger plate has a thickness less than 0.4 millimeters, and wherein both the flat top surfaces of the first type of indentations and the flat bottom surfaces of the second type of indentations are fixed to flat top surfaces and flat bottom surfaces of the same design, respectively, of indentations of the heat exchanger plates of corresponding design.

12 . The plate heat exchanger according to claim 11 , wherein at least said first type of indentations and/or at least said second type of indentations are arranged, at least in part, in such a way that at least sectionally at least one conduit for at least one of the circulating fluids is arranged in parallel to at least one of the side edges of the corresponding heat exchanger plate.

13 . The plate heat exchanger according to claim 11 , wherein the flat top surfaces and the flat bottom surfaces of the indentions of the at least one heat exchanger plate are fixed by at least one of soldering, brazing, or gluing.

14 . A plate heat exchanger, comprising:
a heat exchanger plate, wherein the heat exchanger plate comprises at least one section showing indentations, intended to be placed against corresponding indentations of heat exchanger plates of a corresponding design, wherein at least a first type of indentations and at least a second type of indentations are provided, the first type of indentations and the second type of indentations extending in opposing directions from a references plane of the at least one heat exchanger plate, the first type of indentations being formed with flat top surfaces and the second type of indentations being formed with flat bottom surfaces, wherein the first type of indentations and the second type of indentations are distributed with different densities of indentations so that each indentation of the first type of indentations is bordered by a different number of indentations of the second type of indentations than a number of indentations of the first type of indentations that border each indentation of the second type of indentations, wherein the indentations are formed with curved profiles transitioning between the flat top and flat bottom surfaces, and wherein both the flat top surfaces of the first type of indentations and the flat bottom surfaces of the second type of indentations are adapted to be fixed to flat top surfaces and flat bottom surfaces of the same design, respectively, of indentations of the heat exchanger plate of corresponding

Assignees

• Danfoss As

Inventors

• Persson Lars

Classifications

• F28F3/044

  the deformations being pontual, e.g. dimples · CPC title

• F28F21/081

  Heat exchange elements made from metals or metal alloys · CPC title

• F28F2215/04

  Assemblies of fins having different features, e.g. with different fin densities · CPC title

• F28D9/0031 Primary

  the conduits for one heat-exchange medium being formed by paired plates touching each other (F28D9/0012, F28D9/0025, F28D9/0081, F28D9/04 take precedence) · CPC title

• F24S25/10

  extending in directions away from a supporting surface · CPC title