HEAT EXCHANGER NETWORK

• US 20110120678A1
• Filed: 11/11/2010
• Published: 05/26/2011
• Est. Priority Date: 11/12/2009
• Status: Abandoned Application

• Current Assignee: Autokã¼Hler-GmbH & Company KG
• Original Assignee: Autokã¼Hler-GmbH & Company KG
• Inventors: PALM, Hans-Jürgen
• Application Number:
  US12/944,109
• Publication Number:
  US 20110120678A1
• Time in Patent Office: Days
• US Class Current: 165/109.1
• CPC Class Codes: F28D 9/0075 the plates having openings therein for circulation of the heat-exchange medium from one conduit to another

Abstract

A heat exchanger grid includes a stack including and arranged between end plates and further includes dividing plates and spacers arranged between the end plates to form sealed chambers for at least two heat exchange media. The end plates include one or both of inlet and outlet openings for the at least two media. The dividing plates including first passages aligned with the one or both of the inlet and outlet openings. The first passages are delimited by circumferentially enclosed edges and form collecting channels for the at least two media. The spacers include frames which are delimited circumferentially by rails and which spacers include second and third passages which are aligned at least partly with respect to the one or both of the inlet and outlet openings. The first, second, and third passages are arranged as slots with a part of the second and third passages being delimited by circumferentially enclosed edges and another part of the second and third passages including pass-through gaps facing toward the sealed chambers and except for the gaps, the second and third passages are enclosed.

Claims

1. A heat exchanger grid comprising:

a stack including and arranged between end plates and further including dividing plates and spacers arranged between the end plates to form sealed chambers for at least two heat exchange media;

the end plates including one or both of inlet and outlet openings for the at least two media;

the dividing plates including first passages aligned with the one or both of the inlet and outlet openings, the first passages being delimited by circumferentially enclosed edges and form collecting channels for the at least two media;

the spacers including frames which are delimited circumferentially by rails and which spacers include second and third passages which are aligned at least partly with respect to the one or both of the inlet and outlet openings; and

the first, second, and third passages being arranged as slots with a part of the second and third passages being delimited by circumferentially enclosed edges and another part of the second and third passages including pass-through gaps facing toward the sealed chambers and except for the gaps, the second and third passages are enclosed.

22. The heat exchanger grid according to claim 1, wherein the end plates include two inlet openings and two outlet openings each, and the dividing plates and the spacers each include four first, second and third passages.

23. The heat exchanger grid according to claim 22, wherein the dividing plates include a square or rectangular outside contour and include first longitudinal axes which are arranged parallel with respect to each other, and the first passages are arranged in boundary regions of the dividing plates which are adjacent to side edges of the dividing plates which are parallel to the first longitudinal axes.

24. The heat exchanger grid according to claim 23, wherein the spacers include frames having square or rectangular outside contours and second longitudinal axes, and the second and third passages are arranged in rails of the frames which are arranged parallel to the second longitudinal axes.

25. The heat exchanger grid according to claim 24, wherein the first, second and third passages are arranged successively behind one another in the direction of the first and second longitudinal axes.

26. The heat exchanger grid according claim 25, wherein the first, second and third passages have passage longitudinal axes which are arranged substantially parallel to the first and second longitudinal axes, respectively, of the dividing plates and the spacers.

27. The heat exchanger grid according to claim 25, wherein the first, second and third passages have lengths which are slightly smaller than a length of an end of the dividing plates divided by the number of the at least two heat exchanging media.

28. The heat exchanger grid according to claim 1, wherein at least one or both of the first and second passages are penetrated by connecting webs configured as tie rods.

29. The heat exchanger grid according to claim 24, wherein the spacers are arranged to form at least one of the sealed chambers for two different media, and are arranged in the stack in a position twisted with respect to one another by 180°

about the second longitudinal axis.

30. The heat exchanger grid according to claim 1, wherein two types of spacers are provided, a first type being arranged to form one of the sealed chambers for a first medium and a second type arranged to form at least two of the sealed chambers for at least two media.

31. The heat exchanger grid according to claim 30, wherein the second type of spacers include at least three third passages each in opposite rails, and that the at least two sealed chambers are separated from one another by dividing rails arranged between selected third passages.

32. The heat exchanger grid according to claim 1, wherein the spacers are made integrally from a sheet metal.

33. The heat exchanger grid according to claim 32, wherein the spacers are produced by punching, lasing or jet cutting.

34. The heat exchanger grid according to claim 1, wherein the spacers are arranged in several parts.

35. The heat exchanger grid according to claim 34, wherein the spacers are made of two mutually spaced end pieces and at least two rails which connect the end pieces with one another.

36. The heat exchanger grid according to claim 35, wherein the end pieces and the rails are arranged to engage into each other in an interlocking manner in at least one direction.

37. The heat exchanger grid according to claim 1, wherein the end plates, the dividing plates and the spacers are connected with one another in a liquid-tight manner by soldering.

38. The heat exchanger grid according to claim 37, wherein the dividing plates are clad-brazed on both sides.

39. The heat exchanger grid according to claim 1, wherein the sealed chambers include turbulator inserts.

40. The heat exchanger grid according to claim 1, wherein the end plates, the dividing plates and the spacers include mounting holes which are aligned respect to one another in the stack.

41. The heat exchanger grid according to claim 40, wherein one or more of the end plates, the dividing plates, and the spacers include outside corners configured for mounting in the stack and include a contour which deviates from a contour of outer edges of one or more of the end plates, the dividing plates, and the spacers.

2-21. -21. (canceled)