CH646512A5 - RING HEAT EXCHANGER. - Google Patents

Description

The invention is detailed in the following description of exemplary embodiments shown in the drawing. The invention relates to a ring heat exchanger which explains n NEN.

has the same tube packages, each of which for the 40 It shows:

Provided flow of a first medium of equal length. FIG. 1 is a perspective view of a part of a tube that forms the gaps for the guiding form of a ring consisting of flat tube packages — the flow of a second medium in parallel and in the waste heat exchanger;

were assembled from each other and each of which - Fig. 2 one partially cut and broken darge-the adjacent ends are connected to two end walls, «put a top view of the part of the heat exchanger according to Fi-the two collecting boxes close to the outside, the gur 1 ;

Tubes at their two ends, each with a common Fig. 3 is a perspective view showing the structure of a

Collection space of the respective collection box are connected, flat tube package of the embodiment of FIG. 1 and wherein each collection box shows two of said end walls 2 in a disassembled state;

of two tube packs, which at an angle to one another FIGS. 4 and 4a are perspective views of two different

,, 1 "," 01. ... j. , ",, different embodiments of angle boxes with two of the standing, which - of 360, so that each collection box collection rooms or with a collection room;

Most forms an angled box, which is associated with FIGS. 5 to 7 top views of various inventive

connects the two tube packs in such a way that their flow directional ring heat exchanger.

gen to each other in the said angle. 1 to 4 show the construction of a heat exchanger which has flat tube packs 111 which are made from one another. The object of the invention is to form a ring of congruent, rectangular plates 123 which create heat exchangers of this type. in which the tube packs are arranged one above the other and are formed by strips 124 in such a way that they are kept very simple and practically oh and 125 apart and can be used to produce losses. 60 strips connected, e.g. are soldered. The strips 124 are

This object is achieved according to the invention by the combination of the following features along the longitudinal edges of the rectangular plates 123: arranged so that two plates adjacent to each other a) mean that the strips 123 are arranged parallel and at a distance from one another and the longitudinal strips 124 each a in the longitudinal direction neten tubes of each tube bundle formed as flat tubes of rectangular plates 123 extending flat tube are formed, with their broad sides to form the intermediate, which is necessary for the flow of a first medium, eg of rooms for the flow of the second medium, oil in an oil cooler, serves. The space formed by the distance between b) that each flat tube is formed from rectangular plates is two flat tubes constructed in this way, which is alternately laterally delimited at different, mutually opposed, by two strips 125 which extend lengthwise

extend the opposite short edges of the plates 123 and are connected there to the adjacent plates 123. Flow strips are delimited by these strips 125 and the plates connected to them, the flow direction of which is perpendicular to the flow direction of the 5 flat tubes and which are used for the flow of a second medium, e.g. Air in an oil cooler. In order to improve the heat transfer between the second medium through the plates 123 delimiting these intermediate spaces and the first medium flowing through the flat tubes, sheet metal lamellas 126 are arranged in these flow spaces extending along the strips 125, which can be soldered to the adjacent plates 123. Such a flat tube package can be produced very simply and practically without loss of cut, by placing the plates 123 and the strips 124 and 125 on top of one another, as is illustrated in FIG. If the plates 123 and the strips 124 and 125 are solder-plated, then a package assembled in this way need only be introduced in a known manner into a soldering oven or a soldering bath, so that these parts are then soldered tightly together in one operation.

In a flat tube packet 111 soldered together in this way, end walls are formed by the short edges of the plates 123, the ends of the strips 124 and the outer broad sides of the strips 125. These end walls 25 can now easily be connected to the edges of openings 13 and 14 of angle boxes 12 or 112, e.g. be soldered together.

5 to 7 different ring heat exchangers constructed from the flat tube packs 111 are shown. With 30 of these ring heat exchangers, at least one angle box 112 is required in addition to the angle boxes 12. The angle box 12, which is only shown in perspective in FIG. 4a, has two openings 13 and 14, each of which defines a flat opening area. These opening surfaces are at an angle 15 to one another and are connected to one another by the interior of the angle box. In the angular box 112, the interior is divided by an inner wall 16 into two collecting spaces 17 and 18, to which the openings 13 and 14 are assigned. Each of these collecting spaces 17 and 40 18 is connected to a connecting piece 19. Depending on the size of the angle 15 formed by the two opening surfaces of the angle boxes 12, 112, the number of sides of the versatile ring heat exchangers can be varied as desired.

5, the angle denoted by 45 15 is 90 °. This creates a four-sided ring heat exchanger in which two angular boxes 112, each with two collecting spaces and with two connecting pieces 19, are provided. These angular boxes 112 are arranged on opposite corners of the ring cooler. The two other angular boxes 12 each enclose a single continuous collecting space. Like that in Fig. 5

646 512

is represented by the arrows 127 and 128 and by the dotted flow lines 129 and 130, this design creates two flow spaces for the first medium flowing through the flat tubes. Such a ring heat exchanger can be used for a stream of a first medium divided into two streams or for two different first media.

In the embodiment shown in Fig. 6, a ring heat exchanger is shown in which the opening areas

360 °

the angle boxes 12 'and 112' an angle 15 of -j- = 120 °

form. With these angular boxes 12 'and 112', a three-sided ring heat exchanger can now be set up. In this exemplary embodiment, only one angle box 112 'is divided into two collecting spaces and provided with two connecting pieces 19. The two other angle boxes 12 'have only a single collecting space as a flow space. In this circular heat exchanger, the first medium flows through the one connecting piece 19 into the heat exchanger, runs around the entire heat exchanger through the flat tubes and then flows out of the second connecting piece 19.

The ring heat exchanger shown in Fig. 7 has two angular boxes 12 "and free angular boxes 112", in which the

360 °

Angle 15 between the opening surfaces is 72 °. A five-sided heat exchanger can be set up with these angle boxes. The three angle boxes 112 "used here are each divided into two collecting spaces and each provided with two connecting pieces 19. This ring heat exchanger thus has three flow spaces 131, 132 and 133. It can therefore be used for three different first media. It should be noted that the Different flow spaces can be of different lengths in all the annular heat exchangers shown, depending on where the angle boxes 112, 112 'or 112 "are arranged. This has the advantage that different heat exchange conditions can be created when using different first media.

The construction of the ring heat exchanger from the flat tube packs according to FIGS. 1 and 3 results in the first and surprising advantage that the ring heat exchanger can be constructed from flat tube packs 111, which are produced practically without loss of material when cutting the plates 123 and the strips 124 and 125 can be. Another advantage is that these flat tube bundles 111 can be used for ring heat exchangers of different sizes, depending on what angle boxes 12, 12 ', 12 ", 112, 112', 112" are used.

C.

2 sheets of drawings

Claims (2)

646 512 2 PATENT CLAIMS overlying edges are connected with straight strips, 1. Ring heat exchanger, which has and has the same tube bundles, each of which for the flow of a first c) that at least in an angle box each of the two There are pipes of the same length provided for the medium, which is assigned to a collection space each at the end walls and that the formation of intermediate spaces for the flow of a 5 collection space through an inner wall is separated from one another. second medium in parallel and separated from each other and each with a connecting piece for the first medium are assembled and their respective adjacent enum is provided. which are connected to two end walls, the two collecting boxes. By using flat tubes according to the Shut off to the outside, with the pipes at their a) a relatively good efficiency of the ends is achieved with a common collecting space of the respective heat exchanger. ligen collecting box are connected, each collecting box. Characteristic b) ensures that the flat tubes most two of the end walls of two tube packages can be produced very easily by solder-clad i -. j. , j 1 has rectangular plates and corresponding strips one above the other, which are at an angle to one another which — from. °,. . l4. K,. . v. , n stacked into a package and then together in an oven 360 °, so that each collecting box an angle box 15 are soldered. A particular advantage of this feature, which forms the two tube bundles connected to it, is that the cutting of the rectangular plates and connects them, that their flow directions in said straight strips is practically possible without loss. Angle to one another, characterized by the. The feature c) ensures that a heat The combination of the features of the exchanger can be designed such that its efficiency a) that the tubes of each tube bundle, which are arranged in parallel and at a distance from one another and not influenced by the position of the heat exchanger, are designed as flat tubes (111). This is because at least one angle card is arranged, the broad sides of which form a collecting space for the flow of the second medium with the broad sides to form the middle of each of the two flat tube packages, and the two collecting spaces are arranged by an In - b) that each flat tube made of rectangular plates (123) is separated from each other and each with a connection, which are alternately provided with different, each 25 connections for the first medium, opposite edges with straight strips ( 124, 125) that this first medium is independent of the position of the heat bond, and metal exchanger, namely whether the flat tubes are horizontal or vertical c) that at least in an angular box (112, 112 ', 112 ") tical, the flat tubes must flow evenly. each of the two walls is assigned a collecting space (17, 18). In a preferred embodiment of the invention, and that the two collecting spaces At least two internal walls (16) divided into two collecting spaces are separated from one another and each provided with an anchor box, which means that at least two connection ports (19) are provided for the first medium or for at least 2. Heat exchanger according to claim 1, characterized in that two different first media are created, so that one draws with at least two one and the same ring heat exchanger and with one and (17, 18) divided angle boxes (112) are provided in two collecting spaces. 35 the same second medium, e.g. Air, can cool several different first media.