DE202020105759U1 - heat exchanger - Google Patents

Abstract

Heat exchanger (1) comprising
- A stack of first frames (4), second frames (5, 7) arranged between two end plates (2, 3, 11) and first separating plates (6) arranged between the frames (4, 5, 7) for forming media-carrying medium passages for the passage of at least two different media as well as between the medium passages arranged separately from these leakage passages,
- turbulators (12, 13) accommodated in the medium passages and/or the leakage passages,
- wherein the end plates (2, 3, 11) have inlets (25) for feeding the media into the passages and outlets (25) for discharging the media from the passages,
- wherein each of the first frames (4) has an outer closed first frame section (26) and the first frame section (26) into a central flow chamber (17) and at least two collecting channels (18) dividing second frame sections (27),
- each of the first partition plates (6) having at least four passages (24) aligned with the inlets (25) and outlets (25) for the passage of the media, characterized in that
- each of the first frames (4) has third frame sections (28) dividing the first frame (4) into the flow chamber (17), the at least two collecting channel areas (18) and two leakage areas (19), and that
- each of the second frames (5, 7) has a first frame section (29) forming a leakage area (20) and closed second frame sections (30) forming at least two collecting channel areas (18) which are connected to respective passages (24) of the first separating plates (6 ) are aligned to let the media through.

Description

The present invention relates to a heat exchanger according to the preamble of claim 1.

A generic heat exchanger is for example from DE 20 2009 015 586 U1 famous. The heat exchanger described therein consists of a large number of frames arranged between end plates and separating plates arranged between them to form two separate fluid channels for two media that are preferably guided in countercurrent or cocurrent relative to one another for the exchange of thermal energy between the media.

In order to prevent the two media from getting into the flow area of the other medium in the event of a leak, it is known from the prior art to provide leakage passages between the media passages, for example by arranging double walls between the individual medium passages.

The object of the present invention is to further develop a generic heat exchanger such that a separation of the media is also achieved in the area of the collecting channels, which are fluidically connected to the respective medium passages.

This object is achieved by a heat exchanger having the features of claim 1.

The heat exchanger according to the invention has a stack of first frames, second frames and separating plates arranged between the frames to form media-carrying medium passages for conducting at least two different media and between the medium passages and leakage passages arranged separately from these arranged between two end plates.

The heat exchanger also has turbulators accommodated in the medium passages and/or the leakage passages.

The end plates have inlets for feeding the media into the passages and outlets for removing the media from the passages.

Each of the first frames has an outer closed first frame section and second frame sections dividing the first frame section into a central flow chamber and at least two collecting channels.

Each of the partition plates has at least four passages aligned with the inlets and outlets for the passage of the media.

Each of the first frames has third frame sections dividing the first frame into the flow chamber, the at least two collection passage areas, and two leakage areas.

Each of the second frames has a first frame section forming a leakage area and at least two closed second frame sections forming collection channel areas which are aligned with respective passages of the partition plates for passage of the media.

Such a heat exchanger according to the invention not only reliably prevents the two media from mixing in the event of a leak in the area of the separating plates between the two media-carrying passages and also reliably prevents the two media from mixing in the collector area, i.e. near the collecting channels and passages.

Advantageous variants of the invention are the subject matter of the dependent claims.

According to a preferred variant embodiment, the leakage areas of the second frames are open towards the side edges of the plane in which the second frames are arranged.

This allows any leakage that may occur to flow out via the side openings of the second frame.

According to a preferred development, two second frames are arranged in one level of the stack, between which a turbulator at least partially filling a first leakage area is inserted, the turbulator being open at side edges not adjoining the second frame.

In this embodiment variant, the second frames essentially form the collector area of the heat exchanger. If a leak occurs directly in the area of the flow chambers, the leaking fluid is collected in a central leakage passage in which the turbulator is arranged and guided along the channels of the turbulator to the side edges and from there to the outside.

If the leakage occurs in the area of the first frame near the collecting ducts, the leakage fluid can escape via the leakage passages of the second frame arranged in this area either in the direction of the turbulator or via an opening voltage in the second frame to the outside.

In an alternative embodiment variant, the leakage areas of the second frames are closed towards the side edges of the plane in which the second frames are arranged.

In a preferred development of this embodiment variant, a single second frame is arranged in one level of the stack, with an outer closed first frame section and second frame sections dividing the first frame section into a central leakage area and at least two collecting channels.

This central leakage area is adjoined by leakage openings in the underlying separating plates, so that any leakage fluid that may occur can flow out via these leakage openings in the separating plates and the possibly further leakage areas of further underlying frames to the base area of the heat exchanger and can flow off there via an end plate designed as a base plate .

Thus, according to a preferred embodiment variant, the end plate is formed in a bottom region of the stack with at least one leakage passage for feeding leakage fluid into a leakage outlet attached to the underside of the end plate.

Particularly preferably, a leakage plate arranged under a first frame with leakage passages under the leakage areas of the first frame is arranged in a bottom area of the stack, to which a collecting channel plate with a collecting channel connecting the leakage passages connects further down, which is on the end plate designed as a bottom end plate with a leakage passage for feeding leakage fluid into a leakage outlet attached to the underside of the end plate.

According to a further preferred development of the heat exchanger according to the invention, ribs extend into an area of the second frame near the collecting channel areas.

These ribs serve in particular to improve the stability of the stack of frames and separating plates arranged one above the other.

The components of the heat exchanger, in particular the frames and the separating plates arranged between them, are preferably connected to one another with a material fit, in particular soldered, welded, glued or also printed.

According to a further preferred embodiment variant of the heat exchanger, the leakage areas are used for filling with a heat storage medium instead of being used as leakage space.

• 1a und 1b isometrische Darstellungen einer ersten Ausführungsvariante eines erfindungsgemäßen Wärmeaustauschers aus unterschiedlichen Perspektiven,
• 2 eine perspektivische Explosionsdarstellung des Wärmeaustauschers gemäß der 1a und 1b,
• 3 und 4 Draufsichten auf eine Ausführungsvariante eines ersten Rahmens, der in dem Stapel abwechselnd in der in 3 gezeigten Ausrichtung und in der in 4 gezeigten Ausrichtung eingelegt ist, mit darin eingelegtem Turbulator,
• 5 eine Draufsicht auf eine erste Ausführungsvariante einer Leckagepassage mit zwei zweiten Rahmen und einem dazwischen angeordneten Turbulator,
• 6 eine Draufsicht auf ein erstes Trennblech,
• 7a und 7b isometrische Darstellungen einer zweiten Ausführungsvariante eines erfindungsgemäßen Wärmeaustauschers,
• 8 eine der 2 entsprechende Explosionsdarstellung des in den 7a und 7b gezeigten Wärmeaustauschers,
• 9 eine Draufsicht auf eine weitere Ausführungsvariante eines zweiten Rahmens mit darin eingelegtem Turbulator,
• 10 eine Draufsicht auf ein weiteres Trennblech,
• 11 bis 13 Draufsichten auf der Sammlung von Leckage dienenden weiteren Platten,
• 14 eine schematische Darstellung eines Durchflusses der beiden Medien durch den in den 7a und 7b dargestellten Wärmeaustauscher,
• 15a und 15b isometrische Darstellungen einer weiteren Ausführungsvariante eines erfindungsgemäßen Wärmeaustauschers, insbesondere zur Nutzung in Verbindung mit einem in den Leckagepassagen eingefüllten Wärmespeichermedium,
• 16 eine der 2 entsprechende Explosionsdarstellung des in den 15a und 15b gezeigten Wärmeaustauschers,
• 17-20 Draufsichten auf weitere Ausführungsvarianten eines ersten Kanals, eines zweiten Kanals mit jeweils darin eingelegten Turbulatoren und eines weiteren Trennblechs,
• 21 und 22 Draufsichten auf eine weitere Ausführungsvariante eines ersten Rahmens zur Ermöglichung einer I-Durchströmung, mit darin eingelegtem Turbulator,
• 23 und 24 Draufsichten auf eine weitere Ausführungsvariante eines ersten Rahmens zur Ermöglichung einer U-Durchströmung, mit darin eingelegtem Turbulator, und
• 25 bis 28 schematische Darstellungen weiterer Durchflussvarianten der beiden Medien durch mit entsprechenden Trennblechen, ersten Rahmen, zweiten Rahmen sowie entsprechend positionierten Ein- und Auslässen ausgestatteten Wärmeaustauschern.

Preferred exemplary embodiments of the invention are explained in more detail below with reference to the accompanying drawings. Show it:

• 1a and 1b isometric representations of a first embodiment of a heat exchanger according to the invention from different perspectives,
• 2 an exploded perspective view of the heat exchanger according to FIG 1a and 1b ,
• 3 and 4 Top views of a variant embodiment of a first frame, which is placed in the stack alternately in the 3 orientation shown and in the in 4 orientation shown is inserted, with the turbulator inserted therein,
• 5 a plan view of a first embodiment variant of a leakage passage with two second frames and a turbulator arranged in between,
• 6 a plan view of a first separating plate,
• 7a and 7b isometric representations of a second embodiment of a heat exchanger according to the invention,
• 8th one of the 2 corresponding exploded view of the 7a and 7b shown heat exchanger,
• 9 a plan view of a further embodiment variant of a second frame with a turbulator inserted therein,
• 10 a top view of another partition plate,
• 11 until 13 Top views on the collection of further plates serving for leakage,
• 14 a schematic representation of a flow of the two media through the in 7a and 7b illustrated heat exchanger,
• 15a and 15b isometric representations of a further embodiment variant of a heat exchanger according to the invention, in particular for use in connection with a heat storage medium filled in the leakage passages,
• 16 one of the 2 corresponding exploded view of the 15a and 15b shown heat exchanger,
• 17-20 Top views of further design variants of a first channel, a second channel with turbulators inserted therein and a further separating plate,
• 21 and 22 Top views of a further embodiment variant of a first frame to enable an I-flow, with a turbulator inserted therein,
• 23 and 24 Top views of a further embodiment variant of a first frame to enable a U-flow, with a turbulator inserted therein, and
• 25 until 28 Schematic representations of further flow variants of the two media through heat exchangers equipped with appropriate separating plates, first frame, second frame and correspondingly positioned inlets and outlets.

In the following description of the figures, terms such as top, bottom, left, right, front, rear, etc. refer exclusively to the exemplary representation and position of the heat exchanger, end plates, first frame, second frame, partition plate, turbulators and the like selected in the respective figures. These terms are not to be understood as limiting, i.e. these references can change due to different working positions or the mirror-symmetrical design or the like.

Based on 1 until 6 a first embodiment variant of a heat exchanger 1 according to the invention is described.

the 1a and 1b show different perspective views of this embodiment variant of the heat exchanger 1.

The heat exchanger 1 has, as shown in the exploded view in 2 is shown, a stack of first frames 4, second frames 5 and between the frames 4, 5 arranged separating plates 6 arranged between two end plates 2, 3 for the formation of media-carrying medium passages for the passage of at least two different media as well as between the medium passages arranged separately from them leakage passages.

As in 2 as can be seen, such a medium passage is formed by a first frame 4 and separating plates 6 or a separating plate 5 and an end plate 2, 3 covering it at the top and bottom.

A detailed representation of such a first frame 4 is in the 3 and 4 shown. The in the 3 and 4 shown first frame 4 are basically identical, with the in 4 shown first frame 4 is rotated by 180° about an imaginary central axis extending in the plane of the first frame 4 .

The first frame 4 consists of an outer closed first frame section 26 which defines a total of five surface areas by second frame sections 27 and third frame sections 28 .

Delimited by portions of the first frame portion 26 and the third frame portion 28 is a central flow chamber 17 which extends beyond in the corner areas as shown in FIG 2 as can be seen, is connected to passages 24 of the separating plates 6 and collecting channels 18 located above and/or below it in the first frame 4 or second frame 5 located below or above it and forms a connecting channel for a first medium.

The first medium can, for example, have an in 2 lower front inlet 15 shown form two diagonally oppositely arranged channels for the first medium with an outlet 15 arranged at the rear right on the upper end plate 2 .

A second medium, separate from this, flows through the in 3 First frame 4 shown separated by the second frame sections 27 collection channels 18, so that the second medium can not get into the central flow chamber 17 of this first frame 4.

At the in 4 shown first frame 4, separated by two separating plates 6 and a plane second frame 5 in 3 shown first frame 4 is arranged separately, the second medium enters the central flow chamber 17, while the first medium is carried out through the collecting channels 18 without entering the central flow chamber 17 of the frame 4.

The first or second medium is distributed in the respective central flow chamber 17.

A turbulator 12 is inserted in each of the central flow chambers 17 to improve heat transfer to levels below or above. The turbulator 12 can, as in the 3 and 4 shown, extend over a central portion of the flow chambers 17. It is also conceivable that the door bulator 12 extends beyond the inlet and outlet channels of the flow chamber.

The turbulators 12 can be designed, for example, in the form of corrugated sheets, with round or rectangular corrugated ribs.

The flow chambers 17 are preferably designed in such a way that the medium flowing through is distributed evenly over the turbulator 12 and the pressure loss in the medium is minimized.

In particular, in the case of an X-shaped flow through the central flow chambers 17, as by the according to 3 and 4 formed first frame 4 is effected, the turbulators 12 in the rib walls preferably have openings, for example in the form of gills or holes. An offset design of the turbulators 12 is also conceivable.

How further in the 3 and 4 is shown, the third frame sections 28 of each of the first frames 4 together with the second frame sections 27 and sections of the first frame section 26 delimit two leakage areas 19 which serve to accommodate leakage liquid.

As in 5 shown, the leakage passage inserted between two separating plates 6 is formed here from two second frames 5 arranged in one plane of the stack, between which a further turbulator 13 at least partially filling a first leakage area 20 is inserted.

This turbulator 13 is also preferably designed in the form of a corrugated ribbed sheet, the corrugated ribs here extending in a direction perpendicular to a connecting line between the two second frames 5 and to the two edges that are not adjacent to the second frames 5 are open, so that possibly Occurring leakage liquid, which enters the leakage area 20, for example, through a leak in an overlying separating plate 6, can escape on one of the longitudinal sides of the heat exchanger 1.

How further in 5 As can be seen, the turbulators 12, 13, separated from one another by the separating plates 6, lie directly above one another in a direction perpendicular to the individual planes, while the second frames 5 lie directly below or above the leakage areas 19, the collecting channels 18 and lateral areas of the flow chambers 17 are positioned.

The second frames 5 have a first frame section 29, which forms a leakage area 20, and at least two closed second frame sections 30, which form collecting channel areas 18, which are aligned with respective passages 24 of the separating plates 6 for the passage of the media.

The partition plates 6 correspondingly have four openings 24 aligned with the inlets 25 and outlets 25 for the passage of the media.

In order to allow any leakage liquid to pass through, the separating plates 6 also have leakage openings 23 between two respective laterally arranged passages 24 .

At the in 5 Second frame 5 shown is provided centrally on the narrow side with a leakage opening 21 through which any leakage liquid that may occur in these side regions can flow out of the heat exchanger 1 laterally.

how 5 As can further be seen, a central area of the second frame 5 facing the turbulator 13 is formed with a plurality of ribs 31 which are arranged in such a way that any leakage liquid that gets into this area can flow off in the direction of the turbulator 13 .

Overall, this allows in the 1 until 6 shown embodiment a respective lateral exit of any leakage liquid from one of the medium passages via the lateral openings of the second frame 5 or through the central leakage area 20 arranged between the second frame 5, in which the turbulator 13 is placed.

A second preferred embodiment of a heat exchanger 1 according to the invention will now be based on the 7 until 14 described.

In contrast to the based on the 1 until 6 In this variant, any leakage liquid that may occur cannot escape laterally from the heat exchanger 1, but is guided inside the heat exchanger 1 to a bottom of the heat exchanger 1 and can escape there via a central leakage outlet 22.

In this embodiment, the first frame 4 corresponds to the first frame 4 based on FIG 1 until 6 described first embodiment variant of a heat exchanger 1.

In this second embodiment, as in the 7a and 7b as in 8th is shown, an inlet and outlet 14 for a first medium directly vertically above one another and an inlet and outlet 15 for the second medium are also arranged directly vertically one above the other.

In order to force a flow through the flow chambers 17 here, a separating plate 8 is arranged approximately in the middle of the stack, which instead of the four passages 24 at the corner areas of the separating plate 6 has only two such passages 24 on a narrow side of the separating plate 6, which in the Considered plane of the partition plate 8, on which the inlets and outlets 14, 15 opposite side of the partition plate 8 are provided.

Moreover, this separating plate 8 also has two leakage openings 23 arranged on opposite narrow sides.

The first frame 4 correspond to those of the first embodiment in FIGS 1 until 6 described shape.

In contrast to the two second frames 5 separated from one another in one plane by a turbulator 13, the second frame 7 forming the leakage passage here is designed such that it extends over the entire plane.

This second frame 7 is closed towards the side edges of the plane in which the second frames 5 are arranged.

Similar to the first frame 4 , the second frame 7 has an outer closed first frame section 29 and second frame sections 30 dividing the first frame section 29 in a central leakage area 20 and at least four collecting channels 18 .

Here too, the four collecting channels 18 are preferably formed in the corner regions of the second frame 7 .

In this embodiment variant, a turbulator 12 is also inserted in the central leakage area 20 , which preferably corresponds to the turbulator 12 that is also inserted in the first frame 4 .

Adjacent to the narrow sides of the turbulator 12, a labyrinthine rib structure 31 is also provided in the second frame 7, with the leakage area 20 formed between the collecting channels 18 being fluidically connected to the central leakage area 20.

Any leakage fluid that occurs flows here via the central leakage area 20 and the leakage openings 23 arranged below it in the separating plates 6, 8 and the leakage areas 19 of the first frame 4 down to the lower end plate 11.

In contrast to the end plate 3 , the lower end plate 11 is formed with a leakage passage 33 .

A leakage plate 9 arranged under a first frame 4, shown in FIG 11 with leakage passages 33 provided under the leakage areas 19 of the first frame 4 . Below this leakage plate 9 is a collection gutter plate 10, shown in FIG 12 , arranged which, in addition to the passages 24 for the passage of the media, has a collection channel 32 connecting the leakage passages 33 provided in the leakage plate 9 .

The end plate 11 is then arranged under this collecting channel plate 10, with the previously mentioned leakage passage 33, which enables the supply of leakage fluid into the leakage outlet 22 fastened on the underside of the end plate 11.

14 shows a schematic representation of a flow of the two media through the heat exchanger 1, wherein S ₁ describes the basic path of the first medium and S ₂ describes the path of the second medium.

A further embodiment of a heat exchanger 1 according to the invention will now be based on the 15 until 20 described.

• Wie in den 15a, 15b und 16 gezeigt ist, ist bei diesem Wärmeaustauscher 1 keine Trennplatte 8 eingesetzt, so dass hier der Eintritt und Austritt 14 des ersten Fluides und der Eintritt und Austritt 15 des zweiten Fluides jeweils diagonal gegenüber auf den jeweiligen Endplatten 2, 3 angeordnet sind.

This heat exchanger 1 corresponds in principle to the basis of 7 until 14 described heat exchanger 1 with the following differences:

• As in the 15a , 15b and 16 is shown, no separating plate 8 is used in this heat exchanger 1, so that the inlet and outlet 14 of the first fluid and the inlet and outlet 15 of the second fluid are each arranged diagonally opposite one another on the respective end plates 2, 3.

Furthermore, leakage inlets and outlets 22 are provided both on the upper and on the lower end plate 2, 3, here in each case between the inlets and outlets 14 and 15.

The first frames 4 essentially correspond to the first frames 4 of the embodiment variants described above, with the leakage areas 19 being slightly modified here geometrically.

The second frames 7 also essentially correspond to the second frames 7 of the second embodiment variant (described in 7 until 14 ), whereby here the arrangement of the rip pen 31 is geometrically based on the arrangement of the ribs 31 9 differs.

Furthermore, in this embodiment variant, the turbulator 34 arranged in the central leakage area 20 is designed with waves that are wider in cross-section.

This embodiment variant of a heat exchanger 1 is also suitable in particular for filling the leakage areas 20 with a heat storage medium, in particular a PCM (phase change material) instead of using it as a leakage area, which can be filled or filled into the leakage areas via the leakage inlet 22 and leakage outlet 22 .is derivable.

The invention is not limited to the exemplary embodiments shown. For example, different arrangements of the connections are conceivable in order to bring about different flows through the medium passages such as countercurrent or cocurrent, I, X or U flow, a meandering flow, possibly also several times meandering or even without meanders.

So are examples in the 21 and 22 First frames 4 are shown, which enable a so-called I-flow, in which the flow chamber 17 is delimited by the frame sections 28 in such a way that the inlet and outlet areas for the respective medium are not in diagonally opposite corner areas of the flow chamber 17, but at the same distance close to a length of the first frame 4 viewed in an in 21 shown longitudinal direction x, extending, forming a longitudinal edge part of the first frame portion 26 are arranged.

Correspondingly, in this embodiment variant, the collecting channels 18 are also not arranged diagonally opposite one another, but also on an imaginary line parallel to the longitudinal direction x, here in the respective remaining corners of the preferably rectangular-shaped frame 4 .

In the 23 and 24 a further embodiment variant of a first frame 4 is shown, which enables a so-called U-flow.

In this embodiment variant, the collecting channels 18 are arranged next to one another, as viewed in the longitudinal direction x, separated by the leakage area 19, in the respective corners of the first frame 4. The third frame section 28 separating the flow chamber 17 from the leakage area 19 extends here perpendicularly to the longitudinal direction x in a transverse direction y over the entire width of the first frame 4.

On the other side of the first frame, viewed in the longitudinal direction, the entry and exit areas for the respective medium are separated on the one hand by the third frame section 28, which together with a section of the outer first frame section 26 forms a here triangular leakage area 19 viewed in the transverse direction y centrally from the frame portion 26 protrudes inward. A fourth frame section 35 extends parallel to the longitudinal extension x into the flow chamber 17 from the third frame section 28, preferably from the apex of the triangle of the leakage area 19.

The length of the fourth frame section 35 is dimensioned such that a gap remains between the free end of the fourth frame section 35 and the third frame section 28 (near the collecting channels 18) extending over the entire width of the first frame 4 in order to to force shaped flow through the flow chamber 17 from the entry area around the fourth frame section 35 and on to the exit area.

In the 25 until 28 are shown schematically, for flow according to 14 alternative flow options of a heat exchanger 1 according to the invention in the longitudinal and vertical directions x, z are shown.
The arrowheads of the lines marked S1 and S2 represent the flow direction of the respective medium.

This is how the embodiment variant in 25 a heat exchanger 1, in which three groups of three first frames 4 for a first medium S1 and three first frames 4 for a second medium S2, which (with the interposition of second frames 5, 7 not shown here) are stacked on top of each other in such a way that they are flowed through in countercurrent by the two media. The groups are separated by the interposition of a second separating plate 8, as exemplified in 10 is shown, separated from one another, so that the heat exchanger, viewed in the vertical direction z, has the two media S1, S2 flowing through it in a meandering manner.

The variant in 26 shows an alternative variant of a heat exchanger 1, in which, in contrast to that in 25 Only one of the media shown, here the medium S1, flows through the heat exchanger in a meandering manner, viewed in the vertical direction z, while the flow chambers 17 and the inlet 15 and outlet 15 for the second medium S2 are arranged in such a way that the second medium S2 heats the heat exchanger exchanger 1 flows through in the same direction in all groups in the longitudinal direction x.

The variant in 27 shows an alternative variant of a heat exchanger 1, in which, in contrast to that in 25 shown embodiment variant, the first frames lying one above the other are not always flowed through alternately by the first medium S1 and the second medium S2, but that it is also conceivable for the first medium S1 to flow through, for example, two or three first frames 4 lying one above the other and then only one first frame 4 to let the second medium S2 flow through S1.

The variant in 28 finally shows a further alternative variant of a heat exchanger 1, in which, as in 26 shown variant only one of the media, here the medium S1, the heat exchanger, viewed in the vertical direction z, flows through meandering. In addition, as with the in 27 variant shown, the superimposed first frame does not always alternately flow through the first medium S1 and second medium S2, but here, for example, two layers for the first medium S1 alternate with one layer for the second medium S2.

Of course, other combinations or alternatives to the illustrated embodiment variants are also conceivable.

That's how they can 3 and 4 shown leakage areas 19 of the first frame 4 also have an opening to the outside in the frame 4, similar to the design of FIG 5 shown second frame 5.

Furthermore, for example, the openings 21 of the embodiment variant of the second frame 5 shown in FIG. 1 could be closed by a frame piece. According to the closed frame 29 of the second frame according to 9 can also be provided with one or more openings, so that leakage liquid can escape to the outside in the plane of the heat exchanger 1 defined by this second frame 5.

Reference List

1

heat exchanger

2

endplate

3

endplate

4

first frame

5

second frame

6

first partition plate

7

second frame

8th

second partition plate

9

leakage plate

10

collection plate

11

endplate

12

turbulator

13

turbulator

14

inlet/outlet

15

inlet/outlet

16

plumb ring

17

flow chamber

18

collection channel

19

leakage area

20

leakage passage

21

opening

22

Leakage inlet/leakage outlet

23

leakage opening

24

passage

25

inlet/outlet

26

first frame section

27

second frame section

28

third frame section

29

first frame section

30

second frame section

31

ribs

32

collection channel

33

leakage passage

34

turbulator

35

fourth frame section

S1

first media

S2

second medium

x

longitudinal direction

y

transverse direction

e.g

vertical direction

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 202009015586 U1 [0002]

Claims (11)

Heat exchanger (1), comprising - a stack of first frames (4), second frames (5, 7) arranged between two end plates (2, 3, 11) and first separating plates (6 ) for the formation of media-carrying medium passages for the passage of at least two different media as well as leakage passages arranged separately from these between the medium passages, - turbulators (12, 13) accommodated in the medium passages and/or the leakage passages, - the end plates (2, 3, 11 ) have inlets (25) for feeding the media into the passages and outlets (25) for discharging the media from the passages, - each of the first frames (4) having an outer closed first frame section (26) and the first frame section (26) into a central flow chamber (17) and at least two collecting channels (18) dividing second frame sections (27), - wherein each of the first dividing plates (6) has at least four on the inlets (25) and Aus outlets (25) has aligned passages (24) for the passage of the media, characterized in that - each of the first frames (4) has third frame sections (28) which extend the first frame (4) into the flow chamber (17), the at least two collecting channel areas (18) and two leakage areas (19), and that - each of the second frames (5, 7) has a first frame section (29) forming a leakage area (20) and closed second frame sections (30 ) aligned with respective passages (24) of the first partition plates (6) for passage of the media. Heat exchanger (1) after claim 1 , characterized in that the leakage areas (20) of the second frames (5) are open towards side edges of the plane in which the second frames (5) are arranged. Heat exchanger (1) after claim 2 , characterized in that two second frames (5) are arranged in one plane of the stack, between which a turbulator (13) at least partially filling a first leakage area (20) is inserted, the turbulator (13) not adjoining the second frame (5) Adjacent margins are open. Heat exchanger (1) after claim 1 , characterized in that the leakage areas (20) of the second frames (7) are closed towards side edges of the plane in which the second frames (5) are arranged. Heat exchanger (1) after claim 4 , characterized in that a single second frame (7) is arranged in one level of the stack, with an outer closed first frame section (29) and the first frame section (29) in a central leakage area (20) and at least four collecting channels (18 ) dividing second frame sections (30). Heat exchanger (1) according to one of the preceding claims, characterized in that the end plate (11) in a bottom region of the stack with at least one leakage passage (33) for feeding leakage fluid into a leakage outlet (22) attached to the underside of the end plate (11) is trained. Heat exchanger (1) after claim 6 , characterized in that in a bottom area of the stack there is a leakage plate (9) arranged under a first frame (4) with leakage passages (33) provided under the leakage areas (19) of the first frame (4), to which further down a collecting channel plate (10) with a collecting channel (32) connecting the leakage passages (33), which is fastened to the end plate (11) designed as a bottom end plate with a leakage passage (33) for supplying leakage fluid into one on the underside of the end plate (11). Leakage outlet (22) rests. Heat exchanger (1) according to one of the preceding claims, characterized in that ribs (31) extend into a region of the second frames (5, 7) close to the collecting channel regions (18). Heat exchanger (1) according to one of the preceding claims, characterized in that in a direction perpendicular to the planes of the stack, a second separating plate (8) which causes a reversal of the flow direction of the media and has a number of passages (24 ) is arranged. Heat exchanger (1) according to one of the preceding claims, characterized in that the components of the heat exchanger (1), in particular the frames (4, 5, 7) and the separating plates (6, 8) arranged between them, are bonded to one another. Heat exchanger (1) according to one of Claims 4 until 10 , characterized in that the leakage areas (20) can be filled with a heat storage medium.

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