EP3169965B1 - Tube bottom and heat exchanger - Google Patents

Tube bottom and heat exchanger Download PDF

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Publication number
EP3169965B1
EP3169965B1 EP15738319.1A EP15738319A EP3169965B1 EP 3169965 B1 EP3169965 B1 EP 3169965B1 EP 15738319 A EP15738319 A EP 15738319A EP 3169965 B1 EP3169965 B1 EP 3169965B1
Authority
EP
European Patent Office
Prior art keywords
hump
tube bottom
wall
tube
shaped trough
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP15738319.1A
Other languages
German (de)
French (fr)
Other versions
EP3169965A1 (en
Inventor
Harald Bronner
Volker Kurz
Stefan Weiss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle International GmbH
Original Assignee
Mahle International GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mahle International GmbH filed Critical Mahle International GmbH
Publication of EP3169965A1 publication Critical patent/EP3169965A1/en
Application granted granted Critical
Publication of EP3169965B1 publication Critical patent/EP3169965B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates
    • F28F9/0219Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224Header boxes formed by sealing end plates into covers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates
    • F28F9/0219Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224Header boxes formed by sealing end plates into covers
    • F28F9/0226Header boxes formed by sealing end plates into covers with resilient gaskets

Definitions

  • the invention relates to a tube sheet according to the preamble of claim 1.
  • a tube sheet is known from DE 10 2011 076 225 A1 , Moreover, the invention relates to a heat exchanger.
  • Coolant cooler can have a plurality of tubes, which can be flowed through by a medium and at the same time can be flowed around by a medium.
  • the tubes are added end in tube sheets.
  • the tubesheets have a number of openings corresponding to the number of tubes, one tube each being inserted into an opening.
  • the tubesheet is closed by a box-like lid to a collection box. For this purpose, the box-like cover is inserted into the tubesheet and is connected to this.
  • a multi-chamber tube From the DE 199 20 102 B4 is a multi-chamber tube known.
  • This multi-chamber tube can be used in appropriately adapted tube plates, so as to form a heat exchanger block. Between the multi-chamber tubes rib elements can be arranged, which improve the heat transfer.
  • a heat exchanger which has two tube sheets, in each of which a plurality of tubes are accommodated at the end.
  • a box-like lid is also used in each case, whereby a flow-through heat exchanger block is formed.
  • a heat exchanger which has a heat exchanger block of a plurality of tubes end accommodated in tube plates.
  • a flow-through heat exchanger block is formed.
  • From the DE 10 2008 011 579 A1 is a bottom plate of a header for a heat exchanger known.
  • the bottom plate forms the so-called tube plate, which has a plurality of openings, in which tubes can be inserted.
  • the tubesheet shown can also be used a box-like lid, whereby a flow-through heat exchanger block can be generated.
  • a disadvantage of the devices in the prior art is in particular that the known tube sheets can be adapted only to different widths wide openings otherwise constant width of the tube sheet. It is therefore an increased adaptation effort required to provide tube plates of equal width with different width openings.
  • the receiving area of the tube sheets, in which the box-like lid is used must be particularly adapted to achieve a sufficiently high density. Therefore, differently wide tube sheets are used for different widths of openings, whereby the dimensions of the heat exchanger formed vary. This requires a higher installation effort, which adversely affects the assembly time and costs.
  • the object of the present invention to provide a tube sheet, which can be adapted to different widths openings in the tube sheet with the same width of the tube sheet. Furthermore, it is the object of the present invention to provide a heat exchanger with such a tube sheet.
  • An embodiment of the invention relates to a tube plate for a heat exchanger, with a slot-like openings having bottom portion, the slot-like openings are surrounded by passages and the tube sheet has a raised edge region, wherein between the passages and the erected edge region a U-shaped groove as a receiving area for the foot of a box-like cover is formed, wherein the U-shaped groove is formed by an inner first wall, the erected edge region and a second wall forming the channel bottom, wherein the inner first wall at least a hump-like shape in extension of a passage on the U having-shaped groove facing side which limits the width of the U-shaped groove between the erected edge region and the first wall and extending from the groove bottom toward the U-shaped groove facing end portion of the passage, which for generating an insertion bevel for pipes.
  • the width of the U-shaped channel can be limited particularly advantageous.
  • the height of the U-shaped groove on the inside can be defined by the hump-like shape.
  • the hump-like shape can be adjusted in particular depending on the width of the passages.
  • tube sheets can be produced with an identical basic width, which each have different widths openings and passages. This is advantageous because the same production machines can be used for the different tube sheets and only the respective thermoforming tools must be adapted.
  • a standardized width for the tube sheets can be guaranteed even with pipes of different widths, whereby the space requirements of the heat exchanger generated can be standardized.
  • a targeted material shift can be achieved. It can be achieved as a greater material thickness, in particular on the side facing away from the U-shaped groove side of the inner wall, as additional material is displaced by the molding of the recess there. This is particularly advantageous for being able to produce sufficiently large chamfers for mounting the tubes on the tubesheet.
  • the transition region between the U-shaped groove and the end portion of the passage can be configured individually, so that a sufficient guidance and fixation for the foot of a box-like lid is given and at the same time a sufficient material thickness for the formation of insertion bevels for Facilitates the pipe assembly remains.
  • the hump-like shape extends into the bottom area and at least partially surrounds the passage. This is particularly advantageous in order to produce a higher stability and at the same time to achieve smoother transitions between the draft and the bump-like formation or the inner wall.
  • the first wall has an insertion bevel on its side facing away from the U-shaped groove, wherein the insertion bevel is arranged on the bump-like formation and the lead-in bevel produces a narrowing of the slot-like openings framed by the passages.
  • An insertion bevel is advantageous in order to facilitate the insertion of the tubes into the openings framed by the passages. It is particularly advantageous if the chamfers are formed in areas of the tube sheet, which has a sufficient material thickness to form a sufficiently long insertion bevel.
  • the insertion bevel is formed on the molded-in depression.
  • An insertion bevel on the molded-in depression is advantageous because an accumulation of material is created by the depression, which allows a sufficiently large insertion bevel.
  • a further preferred embodiment is characterized in that the slot-like openings have two opposite narrow sides and have two opposite broad sides, wherein a slot-like opening on the narrow side and the narrow side facing end portions the broadsides is tapered by insertion bevels. It is particularly advantageous if insertion bevels are formed both on the narrow side and on the broad sides in order to allow the most accurate and simple production possible. In particular, the insertion of the tubes is thereby facilitated.
  • the hump-like shape and / or the recess in the bump-like shape is embossed into the tube sheet and / or is formed by deep-drawing.
  • the embossing and / or deep-drawing is advantageous in order to produce the hump-like shape and the recess with the same manufacturing method, as the rest of the tube sheet. This simplifies production and thus reduces costs.
  • first wall and the surface of the bump-like formation facing the U-shaped groove are aligned at an angle greater than 90 degrees to the channel bottom.
  • An angle greater than 90 degrees is advantageous to create a slope which allows for an advantageous insertion of the foot region of a box-like lid into the U-shaped groove.
  • the U-shaped groove facing side of the hump-like formation forms a centering aid for the insertion of the box-like lid in the U-shaped groove.
  • An embodiment of the invention relates to a heat exchanger with two tube sheets, wherein the heat exchanger has a plurality of tubes which are arranged parallel to each other and are each end received in a framed by a passage opening of a tube plate, wherein the tubes along the insertion bevels into the respective openings are introduced, wherein in the U-shaped groove of each tube sheet each have a box-like lid is inserted, which is connected to the respective tubesheet.
  • Such a heat exchanger is particularly advantageous because it is particularly easy to assemble.
  • the chamfers allow easy positioning of the tubes in the openings. Furthermore, the centering allows the hump-like shape easy positioning of the box-like lid in the U-shaped groove.
  • the Fig. 1 shows a cross section through a tube sheet 1, as is known in the art.
  • the tube plate 1 has a plurality of openings 3, which are arranged on the flat bottom portion 2.
  • the openings 3 are each surrounded by passages 4.
  • Right and left of the openings 3 U-shaped grooves 5 are formed, which are formed substantially between a raised edge region 6 and an inner wall 7 extending parallel thereto.
  • the U-shaped grooves 5 are closed at the bottom by the groove bottom 8. Along the direction 9 tubes can be inserted into the openings 3.
  • the Fig. 2 shows a sectional view through an alternatively configured tube sheet 10, which in particular has a different geometry for the U-shaped groove 14. In particular, the transition of the passages 13 towards the U-shaped groove 14 is deviating.
  • the tube sheet 10 has a bottom portion 11 in which a plurality of openings 12 are formed, which are surrounded by collar-like passages 13.
  • the left and right lying end portions of the passages 13 are closed by hump-like formations 22, which can be introduced, for example, by an embossing process in the inner wall 17 of the tube sheet 10.
  • the passages 13 extend through the hump-like formations 22 out into the U-shaped channel 14.
  • the U-shaped channel 14 is formed by the erected edge region 15, the inner wall 17 and the channel bottom 24.
  • the upper region 16 of the erected edge region 15 is further angled in comparison to the lower region 15.
  • the inner wall 17 is at an angle greater than 90 ° to the channel bottom 24.
  • the hump-like shape 22 forms on its outward to the erected edge region 15 side facing a surface 21, which in particular as a centering for inserting a box-like cover or the foot of the box-like lid can be used.
  • the surface 21 is inclined in such a way that a box-type lid inserted from above is automatically deflected into the U-shaped channel 14 provided for this purpose.
  • Reference numerals 18 and 19 show different possible positions for a foot region of a box-like lid.
  • the limit 20 represents the maximum possible inner position for a foot area. A further displacement of the foot area inwards would become a faulty one lead a non-accurate installation.
  • the tube sheet 10 of FIG. 2 is also already known from the prior art.
  • the FIG. 3 shows two cross sections of U-shaped grooves each a tube plate.
  • the reference numeral 30, a contour of a U-shaped channel is shown with a hump-like shape, as for example in FIG. 2 is indicated.
  • the reference numeral 31 shows a contour of a U-shaped groove, as shown in FIG FIG. 1 is shown by way of example.
  • the FIG. 3 illustrates the different structure, in particular the different width or the different height on the inner side of the different U-shaped grooves.
  • FIG. 4 shows a perspective view of a tube sheet 10, as already in the FIG. 2 was shown.
  • the hump-shaped formation 22 has a flat surface 21 directed towards the erected edge region 15, which also serves as a centering aid.
  • the hump-like shape 22 is formed from the otherwise flat inner wall 17, for example by deep drawing or by embossing.
  • the hump-like formation 22 extends not only over the inner wall 17, but also into the bottom area 11, where in particular the portion 23 of the hump-like formation 22 encloses the passage 13 along its broad sides.
  • FIG. 5 shows an alternative embodiment of a tube plate 40.
  • the tubesheet 40 has a bottom portion 41 which has a plurality of openings 42 which are surrounded by collar-like passages 43.
  • the passages 43 and the openings 42 have in the embodiment of FIG. 5 a shorter extension in the width of the tube bottom 40th Die Exercise des Tube bottom 40 is measured here and also in the other exemplary embodiments in each case by an erected edge region 45 to the edge region opposite thereto.
  • the hump-like formation 48 on an extended portion, which is formed as a plateau 50.
  • a portion 49 of the hump-like formation 48 also partially encloses the broad sides of the respective passage 43.
  • the hump-like formation 48 likewise has an area facing the raised edge region 45, which can be used as a centering aid.
  • the U-shaped channel 44 is formed by the erected edge region 45, the inner wall 47 and the channel bottom 51.
  • the erected edge region 45 has slots, which can serve to secure the box-like cover in the tube plate 40.
  • the attachment of the box-like cover can be achieved, for example, by jamming, the provision of a corrugated slot flanging or with the aid of other known fixing elements.
  • the hump-like shape 48, in particular the plateau 50 and the portion 49 are also formed by an embossing process or by deep drawing from the inner wall 47 and the bottom portion 41.
  • the plateau 50 serves to bridge between the U-shaped groove 44 and the passage 43. It must preferably be shallow enough that sufficient material remains on the underside of the tube bottom 40 in order to form a sufficient insertion be able and at the same time high enough to to ensure a sufficient height of the U-shaped groove 44 on the inside.
  • the plateau 50 is in the embodiment of FIG. 5 highly trained. This allows a sufficient height of the U-shaped groove 44, but is not optimal with respect to the insertion slope at the bottom.
  • FIG. 6 shows a plateau 70, which is flatter and thus more advantageous in terms of the formation of an insertion bevel is, but at the same time a lower height of the U-shaped channel conditionally, which is disadvantageous.
  • FIG. 6 shows a further alternative embodiment of a tube plate 60, which has a bottom portion 61 with an opening 62 arranged therein and a collar-like passage 63.
  • the opening 62 and the passage 63 point in FIG. 6 a relatively short extension in the width of the tube plate 60.
  • the hump-like formation 68 also has a plateau 70, the plateau 70 compared to the plateau 50 of the preceding FIG. 5 shorter and flatter fails.
  • the portion 69 which includes the broad sides of the passages 63, further formed from the plane of the bottom portion 61 as the plateau 70.
  • the portion 69 forms a U-shaped bead, which the passage 63 both on the broad sides and on the The narrow side encloses.
  • the tube plate 60 has a U-shaped groove 64.
  • the U-shaped channel 64 is analogous to the preceding figures by a raised edge portion 65, an inner wall opposite this 67 and a channel bottom 71 formed.
  • the erected edge region 65 also has an outwardly angled portion 66 in the upper region.
  • the hump-shaped formation 68 also has an area directed to the raised edge area 65, which can be used as a centering aid.
  • FIG. 7 shows an inventive embodiment of a tube plate 80.
  • the tube plate 80 has a bottom portion 81.
  • openings 82 are formed, which are surrounded by collar-like passages 83.
  • the openings 82 had two opposite narrow sides 98 and two opposite broad sides 97.
  • the passages 83 which surround the openings 82 each have two narrow sides 98 and two broad sides 97.
  • the U-shaped groove 84 is formed by a raised edge portion 85 and an inner wall 87 opposite thereto and the channel bottom 94.
  • hump-like shape 88 is formed, which in particular with the raised edge portion 85 facing surface 91 includes a smaller angle to the erected edge portion 85 than the inner wall 87.
  • the hump-like shape 88 has a from above formed recess 90, which is disposed immediately adjacent to the end portion of the passage 83.
  • the recess 90 which can also be formed by a stamping process or by deep drawing in the bump-like formation 88, a material displacement takes place downwards, which in particular on the downwardly directed side 96 of the inner wall 87 and the bottom portion 81 a formation of a Insertion bevel allowed.
  • the insertion bevel can be made larger overall, wherein in particular the extent of the insertion bevel along the direction of insertion of the tubes can be increased. This simplifies the insertion of the tubes and thus allows a more stable assembly process.
  • the insertion bevel is in FIG. 7 not shown.
  • the hump-like formation 88 also encloses the broad sides 97 of the passage 83 with a portion 89. Furthermore, the hump-like formation forms a sufficient height of the U-shaped groove 84, whereby a secure positioning of a box-like cover can be ensured.
  • FIG. 8 shows a further perspective view of the tube plate 80, as already in the FIG. 7 was shown.
  • the recess 90 is formed by a straight, parallel to the U-shaped groove 84 extending recess.
  • the hump-like shape 88 also forms a flat, inclined surface 91, which can be used as a centering aid for the foot of a box-like lid.
  • FIG. 9 shows a view of the tube sheet 80 of FIGS. 7 and 8 with a view from below of the opening 82 and the passage 83. It is the side facing away from the U-shaped groove 84 side 96 of the inner wall 87 can be seen.
  • the insertion bevels 92 and 93 can be seen, which run both on the narrow side 98 of the passage 83 and on the end regions 99 of the two broad sides 97.
  • These insertion bevels 92 and 93 are formed in particular in the region of the material displacement produced by the depression 90. These serve in particular for the simplified positioning and mounting of the tubes in the openings 82.
  • the embodiment of the invention as shown in the FIGS. 7 to 9 can be shown, in particular with the previous embodiments for less wide passages 43 and wider passages 13 of the FIGS. 4 to 6 be combined.
  • the additional recess 90 which leads to a material displacement, is advantageous in order to obtain the required material on the underside of the passages 83 in order to form sufficiently sized chamfers 92 and 93 can.
  • the tubesheets, as in the FIGS. 1 to 9 are shown, preferably produced from a platinum-like material by a plurality of deep drawing operations. In each deep-drawing process, material compression and expansion take place, which ultimately lead to a dilution of the base material. By introducing an additional depression, this partially disadvantageous dilution can be counteracted and material can be selectively transferred to defined areas.
  • FIG. 10 shows a comparative view of an embodiment with a tube sheet 80 with a less wide passage 83 and a wider passage 13, as it is already in the FIG. 4 was shown. It is in FIG. 10 In particular, it can be seen that the U-shaped groove 14 or 84 is designed to be identical regardless of the width of the passage 13 or 83. In the case of the less wide passage 83, the recess 90 is formed in the hump-like shape 88, as shown in the FIGS. 7 to 9 was presented. In the case of the broader Passage 13 is this depression, as already in FIG. 4 shown, not provided. However, in an alternative embodiment, the recess may also be combined with a wide passage 13.
  • the FIG. 11 shows a comparative view of two insertion bevels 101 and 102, as they can be formed depending on the width of the passage, which is designated by the reference numeral 100.
  • the insertion bevels 101 and 102 form in particular the end-side insertion bevels, which are formed on the respective narrow side of the passage 100.
  • the insertion bevel formed on the narrow side preferably has an angle of approximately 40 ° relative to a vertical, while the insertion bevels at the end regions of the broad sides preferably have an angle of approximately 30 ° to the vertical.
  • FIGS. 1 to 11 are exemplary and partially represent embodiments as known in the art.
  • a combination of the features of the known from the prior art embodiments, which in the FIGS. 1 to 6 are shown, and the features of the embodiments according to the invention, which in the FIGS. 7 to 9 are shown is possible at any time.
  • the individual embodiments of the figures, in particular with regard to the choice of material, the arrangement of the individual elements and the dimensioning of the respective elements have no limiting character.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

Technisches GebietTechnical area

Die Erfindung betrifft einen Rohrboden nach dem Oberbegriff des Anspruchs 1. Solch ein Rohrboden ist bekannt aus DE 10 2011 076 225 A1 . Außerdem betrifft die Erfindung einen Wärmeübertrager.The invention relates to a tube sheet according to the preamble of claim 1. Such a tube sheet is known from DE 10 2011 076 225 A1 , Moreover, the invention relates to a heat exchanger.

Stand der TechnikState of the art

Kühlmittelkühler können mehrere Rohre aufweisen, welche von einem Medium durchströmt werden können und gleichzeitig von einem Medium umströmt werden können. In einer bekannten Bauform sind die Rohre endseitig in Rohrböden aufgenommen. Die Rohrböden weisen eine der Anzahl der Rohre entsprechende Anzahl von Öffnungen auf, wobei jeweils ein Rohr in eine Öffnung eingesteckt ist. Der Rohrboden wird durch einen kastenartigen Deckel zu einem Sammelkasten abgeschlossen. Hierzu wird der kastenartige Deckel in den Rohrboden eingesetzt und wird mit diesem verbunden.Coolant cooler can have a plurality of tubes, which can be flowed through by a medium and at the same time can be flowed around by a medium. In a known design, the tubes are added end in tube sheets. The tubesheets have a number of openings corresponding to the number of tubes, one tube each being inserted into an opening. The tubesheet is closed by a box-like lid to a collection box. For this purpose, the box-like cover is inserted into the tubesheet and is connected to this.

Aus der DE 199 20 102 B4 ist ein Mehrkammerrohr bekannt. Dieses Mehrkammerrohr kann in entsprechend angepasste Rohrböden eingesetzt werden, um so einen Wärmeübertragerblock zu bilden. Zwischen den Mehrkammerrohren können Rippenelemente angeordnet sein, welche die Wärmeübertragung verbessern.From the DE 199 20 102 B4 is a multi-chamber tube known. This multi-chamber tube can be used in appropriately adapted tube plates, so as to form a heat exchanger block. Between the multi-chamber tubes rib elements can be arranged, which improve the heat transfer.

Aus der DE 10 2011 085 479 A1 ist ein Wärmeübertrager bekannt, welcher zwei Rohrböden aufweist, in welchen jeweils mehrere Rohre endseitig aufgenommen sind. In die Rohrböden ist weiterhin jeweils ein kastenartiger Deckel eingesetzt, wodurch ein durchströmbarer Wärmeübertragerblock gebildet wird.From the DE 10 2011 085 479 A1 a heat exchanger is known, which has two tube sheets, in each of which a plurality of tubes are accommodated at the end. In the tube sheets, a box-like lid is also used in each case, whereby a flow-through heat exchanger block is formed.

Aus der DE 103 43 239 A1 ist ein Wärmeübertrager bekannt, welcher einen Wärmeübertragerblock aus einer Mehrzahl von endseitig in Rohrböden aufgenommenen Rohren aufweist. Durch kastenartige Deckel, welche in die Rohrböden eingesetzt und mit den Rohrböden verbunden sind, ist ein durchströmbarer Wärmeübertragerblock ausgebildet.From the DE 103 43 239 A1 a heat exchanger is known, which has a heat exchanger block of a plurality of tubes end accommodated in tube plates. By box-like cover, which are inserted into the tube sheets and connected to the tube sheets, a flow-through heat exchanger block is formed.

Aus der DE 10 2008 011 579 A1 ist ein Bodenblech eines Sammelkastens für einen Wärmeübertrager bekannt. Das Bodenblech bildet den sogenannten Rohrboden, welcher eine Mehrzahl von Öffnungen aufweist, in welche Rohre eingesteckt werden können. In den gezeigten Rohrboden kann außerdem ein kastenartiger Deckel eingesetzt werden, wodurch ein durchströmbarer Wärmeübertragerblock erzeugt werden kann.From the DE 10 2008 011 579 A1 is a bottom plate of a header for a heat exchanger known. The bottom plate forms the so-called tube plate, which has a plurality of openings, in which tubes can be inserted. In the tubesheet shown can also be used a box-like lid, whereby a flow-through heat exchanger block can be generated.

Nachteilig an den Vorrichtungen im Stand der Technik ist insbesondere, dass die bekannten Rohrböden nur schlecht an unterschiedlich breite Öffnungen bei ansonsten geleichbleibender Breite des Rohrbodens angepasst werden können. Es ist daher ein erhöhter Anpassungsaufwand erforderlich, um Rohrböden gleicher Breite mit unterschiedlich breiten Öffnungen bereitzustellen. Insbesondere der Aufnahmebereich der Rohrböden, in welche der kastenartige Deckel eingesetzt wird muss zur Erreichung einer ausreichend hohen Dichtigkeit besonders angepasst werden. Daher werden für unterschiedlich breite Öffnungen unterschiedlich breite Rohrböden verwendet, wodurch auch die Abmessungen der gebildeten Wärmeübertrager variieren. Dies bedingt einen höheren Montageaufwand, welcher sich nachteilig auf die Montagezeit und die Kosten auswirkt.A disadvantage of the devices in the prior art is in particular that the known tube sheets can be adapted only to different widths wide openings otherwise constant width of the tube sheet. It is therefore an increased adaptation effort required to provide tube plates of equal width with different width openings. In particular, the receiving area of the tube sheets, in which the box-like lid is used must be particularly adapted to achieve a sufficiently high density. Therefore, differently wide tube sheets are used for different widths of openings, whereby the dimensions of the heat exchanger formed vary. This requires a higher installation effort, which adversely affects the assembly time and costs.

Darstellung der Erfindung, Aufgabe, Lösung, VorteilePresentation of the invention, object, solution, advantages

Daher ist es die Aufgabe der vorliegenden Erfindung einen Rohrboden zu schaffen, der bei gleichbleibender Breite des Rohrbodens an unterschiedlich breite Öffnungen im Rohrboden angepasst werden kann. Weiterhin ist es die Aufgabe der vorliegenden Erfindung einen Wärmeübertrager mit einem solchen Rohrboden zu schaffen.Therefore, it is the object of the present invention to provide a tube sheet, which can be adapted to different widths openings in the tube sheet with the same width of the tube sheet. Furthermore, it is the object of the present invention to provide a heat exchanger with such a tube sheet.

Die Aufgabe hinsichtlich des Rohrbodens wird durch einen Rohrboden mit den Merkmalen von Anspruch 1 gelöst.The task with respect to the tube sheet is achieved by a tube sheet having the features of claim 1.

Ein Ausführungsbeispiel der Erfindung betrifft einen Rohrboden für einen Wärmeübertrager, mit einem langlochartige Öffnungen aufweisenden Bodenbereich, wobei die langlochartigen Öffnungen von Durchzügen umrandet sind und der Rohrboden einen aufgestellten Randbereich aufweist, wobei zwischen den Durchzügen und dem aufgestellten Randbereich eine U-förmige Rinne als Aufnahmebereich für den Fuß eines kastenartigen Deckels ausgebildet ist, wobei die U-förmige Rinne durch eine innenliegende erste Wandung, den aufgestellten Randbereich und eine den Rinnenboden bildende zweite Wandung gebildet ist, wobei die innenliegende erste Wandung zumindest eine höckerartige Ausformung in Verlängerung eines Durchzugs auf der der U-förmigen Rinne zugewandten Seite aufweist, welche die Breite der U-förmigen Rinne zwischen dem aufgestellten Randbereich und der ersten Wandung begrenzt und sich vom Rinnenboden hin zum der U-förmigen Rinne zugewandten Endbereich des Durchzugs erstreckt, welche zur Erzeugung einer Einführschräge für Rohre dient.An embodiment of the invention relates to a tube plate for a heat exchanger, with a slot-like openings having bottom portion, the slot-like openings are surrounded by passages and the tube sheet has a raised edge region, wherein between the passages and the erected edge region a U-shaped groove as a receiving area for the foot of a box-like cover is formed, wherein the U-shaped groove is formed by an inner first wall, the erected edge region and a second wall forming the channel bottom, wherein the inner first wall at least a hump-like shape in extension of a passage on the U having-shaped groove facing side which limits the width of the U-shaped groove between the erected edge region and the first wall and extending from the groove bottom toward the U-shaped groove facing end portion of the passage, which for generating an insertion bevel for pipes.

Dabei ist es vorteilhaft, wenn durch die eingeformte Vertiefung eine Materialverlagerung hin zur von der U-förmigen Rinne abgewandten Seite der ersten Wandung ausgebildet ist.It is advantageous if a material displacement is formed toward the side facing away from the U-shaped groove side of the first wall by the molded recess.

Durch eine höckerartige Ausformung aus der inneren Wandung kann die Breite der U-förmigen Rinne besonders vorteilhaft begrenzt werden. Gleichzeitig kann die Höhe der U-förmigen Rinne an der Innenseite durch die höckerartige Ausformung definiert werden. Die höckerartige Ausformung kann dabei insbesondere abhängig von der jeweiligen Breite der Durchzüge angepasst werden. Auf diese Weise können Rohrböden mit einer identischen Grundbreite erzeugt werden, welche jeweils unterschiedlich breite Öffnungen und Durchzüge aufweisen. Dies ist vorteilhaft, da für die unterschiedlichen Rohrböden die gleichen Fertigungsmaschinen verwendet werden können und nur die jeweiligen Tiefziehwerkzeuge angepasst werden müssen. Außerdem kann so eine standardisierte Breite für die Rohrböden auch bei unterschiedlich breiten Rohren gewährleistet werden, wodurch die Bauraumanforderungen der erzeugten Wärmeübertrager vereinheitlicht werden können.By a hump-like shape of the inner wall, the width of the U-shaped channel can be limited particularly advantageous. At the same time, the height of the U-shaped groove on the inside can be defined by the hump-like shape. The hump-like shape can be adjusted in particular depending on the width of the passages. In this way, tube sheets can be produced with an identical basic width, which each have different widths openings and passages. This is advantageous because the same production machines can be used for the different tube sheets and only the respective thermoforming tools must be adapted. In addition, a standardized width for the tube sheets can be guaranteed even with pipes of different widths, whereby the space requirements of the heat exchanger generated can be standardized.

Durch eine eingeformte Vertiefung kann eine gezielte Materialverlagerung erreicht werden. Es kann so eine größere Materialstärke insbesondere an der von der U-förmigen Rinne abgewandten Seite der inneren Wandung erreicht werden, da zusätzlich Material durch das Einformen der Vertiefung dorthin verlagert wird. Dies ist insbesondere vorteilhaft, um ausreichend groß dimensionierte Einführschrägen zur Montage der Rohre am Rohrboden erzeugen zu können.Through a molded recess, a targeted material shift can be achieved. It can be achieved as a greater material thickness, in particular on the side facing away from the U-shaped groove side of the inner wall, as additional material is displaced by the molding of the recess there. This is particularly advantageous for being able to produce sufficiently large chamfers for mounting the tubes on the tubesheet.

Durch eine Anpassung der höckerartigen Ausformung kann der Übergangsbereich zwischen der U-förmigen Rinne und dem Endbereich des Durchzugs individuell ausgestaltet werden, so dass eine ausreichende Führung und Fixierung für den Fußbereich eines kastenartigen Deckels gegeben ist und gleichzeitig eine ausreichende Materialstärke für die Ausbildung von Einführschrägen zum Erleichtern der Rohrmontage verbleibt.By adjusting the hump-like shape, the transition region between the U-shaped groove and the end portion of the passage can be configured individually, so that a sufficient guidance and fixation for the foot of a box-like lid is given and at the same time a sufficient material thickness for the formation of insertion bevels for Facilitates the pipe assembly remains.

Darüber hinaus ist es vorteilhaft, wenn die Auslenkung der höckerartigen Ausformung aus der inneren Wandung ausgehend vom Rinnenboden hin zum jeweiligen Durchzug zunimmt. Dies ist vorteilhaft, da somit eine schräge Fläche erzeugt wird, welche der U-förmigen Rinne zugewandt ist und als Zentrierhilfe für den Fußbereich eines kastenartigen Deckels dienen kann.Moreover, it is advantageous if the deflection of the hump-like formation from the inner wall, starting from the channel bottom, increases toward the respective passage. This is advantageous since an inclined surface is thus produced, which faces the U-shaped groove and can serve as a centering aid for the foot region of a box-like cover.

Auch ist es vorteilhaft, wenn die höckerartige Ausformung sich in den Bodenbereich hinein erstreckt und den Durchzug zumindest teilweise umschließt. Dies ist besonders vorteilhaft, um eine höhere Stabilität zu erzeugen und gleichzeitig weichere Übergänge zwischen dem Durchzug und der höckerartigen Ausformung beziehungsweise der inneren Wandung zu erreichen.It is also advantageous if the hump-like shape extends into the bottom area and at least partially surrounds the passage. This is particularly advantageous in order to produce a higher stability and at the same time to achieve smoother transitions between the draft and the bump-like formation or the inner wall.

Auch ist es zweckmäßig, wenn die erste Wandung an ihrer von der U-förmigen Rinne abgewandten Seite eine Einführschräge aufweist, wobei die Einführschräge an der höckerartigen Ausformung angeordnet ist und die Einführschräge eine Verjüngung der durch die Durchzüge umrandeten langlochartigen Öffnungen erzeugt.It is also expedient if the first wall has an insertion bevel on its side facing away from the U-shaped groove, wherein the insertion bevel is arranged on the bump-like formation and the lead-in bevel produces a narrowing of the slot-like openings framed by the passages.

Eine Einführschräge ist vorteilhaft, um das Einführen der Rohre in die durch die Durchzüge umrandeten Öffnungen zu erleichtern. Dabei ist es insbesondere vorteilhaft, wenn die Einführschrägen in Bereichen des Rohrbodens ausgebildet sind, welcher eine ausreichende Materialdicke aufweist, um eine genügend lange Einführschräge auszubilden.An insertion bevel is advantageous in order to facilitate the insertion of the tubes into the openings framed by the passages. It is particularly advantageous if the chamfers are formed in areas of the tube sheet, which has a sufficient material thickness to form a sufficiently long insertion bevel.

Darüber hinaus ist es vorteilhaft, wenn die Einführschräge an der eingeformten Vertiefung ausgebildet ist. Eine Einführschräge an der eingeformten Vertiefung ist vorteilhaft, da durch die Vertiefung eine Materialanhäufung erzeugt wird, welcher eine ausreichend groß dimensionierte Einführschräge ermöglicht.Moreover, it is advantageous if the insertion bevel is formed on the molded-in depression. An insertion bevel on the molded-in depression is advantageous because an accumulation of material is created by the depression, which allows a sufficiently large insertion bevel.

Ein weiteres bevorzugtes Ausführungsbeispiel ist dadurch gekennzeichnet, dass die langlochartigen Öffnungen zwei sich gegenüberliegende Schmalseiten aufweisen und zwei sich gegenüberliegende Breitseiten aufweisen, wobei eine langlochartige Öffnung an der Schmalseite und an den der Schmalseite zugewandten Endbereichen der Breitseiten durch Einführschrägen verjüngt wird. Es ist besonders vorteilhaft, wenn sowohl an der Schmalseite als auch an den Breitseiten Einführschrägen ausgebildet sind, um eine möglichst genaue und einfache Fertigung zu ermöglichen. Insbesondere das Einführen der Rohre wird hierdurch erleichtert.A further preferred embodiment is characterized in that the slot-like openings have two opposite narrow sides and have two opposite broad sides, wherein a slot-like opening on the narrow side and the narrow side facing end portions the broadsides is tapered by insertion bevels. It is particularly advantageous if insertion bevels are formed both on the narrow side and on the broad sides in order to allow the most accurate and simple production possible. In particular, the insertion of the tubes is thereby facilitated.

Weiterhin ist es besonders vorteilhaft, wenn die höckerartige Ausformung und/oder die Vertiefung in der höckerartigen Ausformung in den Rohrboden eingeprägt ist und/oder durch Tiefziehen eingeformt ist. Das Einprägen und/oder Tiefziehen ist vorteilhaft, um die höckerartige Ausformung und die Vertiefung mit den gleichen Herstellverfahren zu erzeugen, wie den Rest des Rohrbodens. Dies vereinfacht die Produktion und senkt somit die Kosten.Furthermore, it is particularly advantageous if the hump-like shape and / or the recess in the bump-like shape is embossed into the tube sheet and / or is formed by deep-drawing. The embossing and / or deep-drawing is advantageous in order to produce the hump-like shape and the recess with the same manufacturing method, as the rest of the tube sheet. This simplifies production and thus reduces costs.

Auch ist es zu bevorzugen, wenn die erste Wandung und die zur U-förmigen Rinne gerichtete Oberfläche der höckerartigen Ausformung in einem Winkel größer als 90 Grad zum Rinnenboden ausgerichtet sind. Ein Winkel größer als 90 Grad ist vorteilhaft, um eine Schräge zu erzeugen, welche ein vorteilhaftes Einsetzen des Fußbereichs eines kastenartigen Deckels in die U-förmige Rinne ermöglicht.It is also preferable if the first wall and the surface of the bump-like formation facing the U-shaped groove are aligned at an angle greater than 90 degrees to the channel bottom. An angle greater than 90 degrees is advantageous to create a slope which allows for an advantageous insertion of the foot region of a box-like lid into the U-shaped groove.

Auch ist es vorteilhaft, wenn die der U-förmigen Rinne zugewandte Seite der höckerartigen Ausformung eine Zentrierhilfe für das Einsetzen des kastenartigen Deckels in die U-förmige Rinne bildet.It is also advantageous if the U-shaped groove facing side of the hump-like formation forms a centering aid for the insertion of the box-like lid in the U-shaped groove.

Die Aufgabe hinsichtlich des Wärmeübertragers wird durch einen Wärmeübertrager mit den Merkmalen von Anspruch 10 gelöst.The object with regard to the heat exchanger is achieved by a heat exchanger with the features of claim 10.

Ein Ausführungsbeispiel der Erfindung betrifft einen Wärmeübertrager mit zwei Rohrböden, wobei der Wärmeübertrager eine Mehrzahl von Rohren aufweist, welche parallel zueinander angeordnet sind und endseitig jeweils in einer durch einen Durchzug umrandeten Öffnung eines Rohrbodens aufgenommen sind, wobei die Rohre entlang der Einführschrägen in die jeweiligen Öffnungen eingeführt sind, wobei in die U-förmige Rinne jedes Rohrbodens jeweils ein kastenartiger Deckel eingesetzt ist, welcher mit dem jeweiligen Rohrboden verbunden ist.An embodiment of the invention relates to a heat exchanger with two tube sheets, wherein the heat exchanger has a plurality of tubes which are arranged parallel to each other and are each end received in a framed by a passage opening of a tube plate, wherein the tubes along the insertion bevels into the respective openings are introduced, wherein in the U-shaped groove of each tube sheet each have a box-like lid is inserted, which is connected to the respective tubesheet.

Ein solcher Wärmeübertrager ist besonders vorteilhaft, da er besonders einfach zu montieren ist. Die Einführschrägen erlauben eine einfache Positionierung der Rohre in den Öffnungen. Weiterhin erlaubt die Zentrierhilfe an der höckerartigen Ausformung eine einfache Positionierung des kastenartigen Deckels in der U-förmigen Rinne.Such a heat exchanger is particularly advantageous because it is particularly easy to assemble. The chamfers allow easy positioning of the tubes in the openings. Furthermore, the centering allows the hump-like shape easy positioning of the box-like lid in the U-shaped groove.

Vorteilhafte Weiterbildungen der vorliegenden Erfindung sind in den Unteransprüchen und in der nachfolgenden Figurenbeschreibung beschrieben.Advantageous developments of the present invention are described in the subclaims and in the following description of the figures.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Im Folgenden wird die Erfindung anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnungen detailliert erläutert. In den Zeichnungen zeigen:

Fig. 1
eine Schnittansicht eines Rohrbodens, wie er im Stand der Technik bekannt ist,
Fig. 2
eine Schnittansicht eines Rohrbodens, wobei der Übergang zwischen dem Durchzug und der U-förmigen Rinne durch eine höckerartige Ausformung gebildet ist,
Fig. 3
eine Ansicht zweier Konturen jeweils einer U-förmigen Rinne,
Fig. 4
eine perspektivische Ansicht eines Rohrbodens, wobei die Öffnung beziehungsweise der Durchzug sehr breit ausgebildet ist,
Fig. 5
eine perspektivische Ansicht eines alternativ ausgestalteten Rohrbodens, wobei die Öffnungen beziehungsweise die Durchzüge weniger breit ausgestaltet sind als in der vorausgegangenen Figur 4, wobei die höckerartige Ausformung ein Plateau aufweist,
Fig. 6
eine perspektivische Ansicht eines alternativen Rohrbodens, wobei das Plateau flacher ausgestaltet ist als bei dem in Figur 5 gezeigten Rohrboden,
Fig. 7
eine Schnittansicht durch einen erfindungsgemäßen Rohrboden, wobei in die höckerartige Ausformung von oben eine Vertiefung eingeformt ist, welche eine Materialanhäufung an der nach unten gerichteten Seite der höckerartigen Ausformung erzeugt,
Fig. 8
eine perspektivische Ansicht des Rohrbodens gemäß Figur 7,
Fig. 9
eine Ansicht der Unterseite des Rohrbodens gemäß der Figuren 7 und 8,
Fig. 10
eine Schnittansicht durch zwei Rohrböden, wobei ein Rohrboden mit einem weniger breiten Durchzug und ein Rohrboden mit einem breiteren Durchzug dargestellt ist, und
Fig. 11
eine perspektivische Ansicht eines Rohrbodens mit zwei unterschiedlichen Ausgestaltungen einer Einführschräge.
In the following the invention will be explained in detail by means of embodiments with reference to the drawings. In the drawings show:
Fig. 1
a sectional view of a tube sheet, as is known in the art,
Fig. 2
a sectional view of a tube plate, wherein the transition between the passage and the U-shaped groove is formed by a hump-like shape,
Fig. 3
a view of two contours each of a U-shaped channel,
Fig. 4
a perspective view of a tube sheet, wherein the opening or the passage is formed very wide,
Fig. 5
a perspective view of an alternatively configured tube plate, wherein the openings or the passages are designed to be less wide than in the previous FIG. 4 , wherein the hump-like shape has a plateau,
Fig. 6
a perspective view of an alternative tube sheet, wherein the plateau is made flatter than in the FIG. 5 shown tube sheet,
Fig. 7
a sectional view through a tube sheet according to the invention, wherein in the hump-like formation from above a recess is formed, which generates a material accumulation on the downward side of the bump-like formation,
Fig. 8
a perspective view of the tube sheet according to FIG. 7 .
Fig. 9
a view of the bottom of the tube sheet according to the FIGS. 7 and 8 .
Fig. 10
a sectional view through two tube sheets, wherein a tube sheet is shown with a less wide passage and a tube sheet with a wider passage, and
Fig. 11
a perspective view of a tube sheet with two different configurations of a lead-in.

Bevorzugte Ausführung der ErfindungPreferred embodiment of the invention

Die Fig. 1 zeigt einen Querschnitt durch einen Rohrboden 1, wie er im Stand der Technik bekannt ist. Der Rohrboden 1 weist eine Mehrzahl von Öffnungen 3 auf, welche am ebenen Bodenbereich 2 angeordnet sind. Die Öffnungen 3 sind jeweils von Durchzügen 4 umrandet. Rechts und links der Öffnungen 3 sind U-förmige Rinnen 5 ausgebildet, welche im Wesentlichen zwischen einem aufgestellten Randbereich 6 und einer dazu parallel verlaufenden inneren Wandung 7 ausgebildet sind.The Fig. 1 shows a cross section through a tube sheet 1, as is known in the art. The tube plate 1 has a plurality of openings 3, which are arranged on the flat bottom portion 2. The openings 3 are each surrounded by passages 4. Right and left of the openings 3 U-shaped grooves 5 are formed, which are formed substantially between a raised edge region 6 and an inner wall 7 extending parallel thereto.

Die U-förmigen Rinnen 5 sind nach unten hin jeweils durch den Rinnenboden 8 abgeschlossen. Entlang der Richtung 9 können Rohre in die Öffnungen 3 eingefügt werden.The U-shaped grooves 5 are closed at the bottom by the groove bottom 8. Along the direction 9 tubes can be inserted into the openings 3.

Die Fig. 2 zeigt eine Schnittansicht durch einen alternativ ausgestalteten Rohrboden 10, welcher insbesondere eine andere Geometrie für die U-förmige Rinne 14 aufweist. Es ist insbesondere der Übergang der Durchzüge 13 hin zur U-förmigen Rinne 14 abweichend ausgebildet.The Fig. 2 shows a sectional view through an alternatively configured tube sheet 10, which in particular has a different geometry for the U-shaped groove 14. In particular, the transition of the passages 13 towards the U-shaped groove 14 is deviating.

Der Rohrboden 10 weist einen Bodenbereich 11 auf, in welchen mehrere Öffnungen 12 eingeformt sind, welche durch kragenartige Durchzüge 13 umrandet sind. Die links und rechts liegenden Endbereiche der Durchzüge 13 sind durch höckerartige Ausformungen 22, welche beispielsweise durch ein Prägeverfahren in die innere Wandung 17 des Rohrbodens 10 eingebracht werden können, abgeschlossen. Die Durchzüge 13 laufen durch die höckerartigen Ausformungen 22 hin in die U-förmige Rinne 14 aus. Die U-förmige Rinne 14 ist durch den aufgestellten Randbereich 15, die innere Wandung 17 sowie den Rinnenboden 24 gebildet. Der obere Bereich 16 des aufgestellten Randbereichs 15 ist im Vergleich zum unteren Bereich 15 weiter abgewinkelt.The tube sheet 10 has a bottom portion 11 in which a plurality of openings 12 are formed, which are surrounded by collar-like passages 13. The left and right lying end portions of the passages 13 are closed by hump-like formations 22, which can be introduced, for example, by an embossing process in the inner wall 17 of the tube sheet 10. The passages 13 extend through the hump-like formations 22 out into the U-shaped channel 14. The U-shaped channel 14 is formed by the erected edge region 15, the inner wall 17 and the channel bottom 24. The upper region 16 of the erected edge region 15 is further angled in comparison to the lower region 15.

Insbesondere die innere Wandung 17 steht in einem Winkel größer 90° zum Rinnenboden 24. Die höckerartige Ausformung 22 bildet an ihrer nach außen hin zum aufgestellten Randbereich 15 weisenden Seite eine Fläche 21 aus, welche insbesondere als Zentrierhilfe zum Einsetzen eines kastenartigen Deckels beziehungsweise des Fußbereichs des kastenartigen Deckels genutzt werden kann. Die Fläche 21 ist derart geneigt, dass ein von oben eingesetzter kastenartiger Deckel automatisch in die dafür vorgesehene U-förmige Rinne 14 abgelenkt wird.In particular, the inner wall 17 is at an angle greater than 90 ° to the channel bottom 24. The hump-like shape 22 forms on its outward to the erected edge region 15 side facing a surface 21, which in particular as a centering for inserting a box-like cover or the foot of the box-like lid can be used. The surface 21 is inclined in such a way that a box-type lid inserted from above is automatically deflected into the U-shaped channel 14 provided for this purpose.

Mit dem Bezugszeichen 18 und 19 sind unterschiedliche mögliche Positionen für einen Fußbereich eines kastenartigen Deckels dargestellt. Mit der Begrenzung 20 ist die maximal mögliche innere Position für einen Fußbereich dargestellt. Eine weitere Versetzung des Fußbereichs nach innen würde zu einer fehlerhaften beziehungsweise einer nicht genauen Montage führen. Jede Anordnung eines Fußbereichs, welche links der Markierung 20 liegt, führt unter Zuhilfenahme der Zentrierhilfe 21 zu einem passgenauen Sitz des Fußbereichs in der U-förmigen Rinne 14. Der Rohrboden 10 der Figur 2 ist ebenfalls bereits aus dem Stand der Technik bekannt.Reference numerals 18 and 19 show different possible positions for a foot region of a box-like lid. The limit 20 represents the maximum possible inner position for a foot area. A further displacement of the foot area inwards would become a faulty one lead a non-accurate installation. Each arrangement of a foot area, which lies to the left of the marking 20, leads, with the aid of the centering aid 21, to a snug fit of the foot area in the U-shaped groove 14. The tube sheet 10 of FIG FIG. 2 is also already known from the prior art.

Die Figur 3 zeigt zwei Querschnitte von U-förmigen Rinnen jeweils eines Rohrbodens. Dabei ist mit dem Bezugszeichen 30 eine Kontur einer U-förmigen Rinne mit einer höckerartigen Ausformung dargestellt, wie sie beispielsweise in Figur 2 angedeutet ist. Mit dem Bezugszeichen 31 ist eine Kontur einer U-förmigen Rinne dargestellt, wie sie in Figur 1 beispielhaft dargestellt ist. Die Figur 3 verdeutlicht den unterschiedlichen Aufbau, insbesondere die unterschiedliche Breite beziehungsweise die unterschiedliche Höhe an der inneren Seite der unterschiedlichen U-förmigen Rinnen.The FIG. 3 shows two cross sections of U-shaped grooves each a tube plate. In this case, the reference numeral 30, a contour of a U-shaped channel is shown with a hump-like shape, as for example in FIG. 2 is indicated. The reference numeral 31 shows a contour of a U-shaped groove, as shown in FIG FIG. 1 is shown by way of example. The FIG. 3 illustrates the different structure, in particular the different width or the different height on the inner side of the different U-shaped grooves.

Die Figur 4 zeigt eine perspektivische Ansicht eines Rohrbodens 10, wie er bereits in der Figur 2 gezeigt wurde. In Figur 4 ist insbesondere zu erkennen, dass die höckerartige Ausformung 22 eine zum aufgestellten Randbereich 15 gerichtete ebene Fläche 21 aufweist, welche auch als Zentrierhilfe dient. Die höckerartige Ausformung 22 ist aus der ansonsten ebenen inneren Wandung 17 beispielsweise durch Tiefziehen oder durch Prägen ausgeformt.The FIG. 4 shows a perspective view of a tube sheet 10, as already in the FIG. 2 was shown. In FIG. 4 In particular, it can be seen that the hump-shaped formation 22 has a flat surface 21 directed towards the erected edge region 15, which also serves as a centering aid. The hump-like shape 22 is formed from the otherwise flat inner wall 17, for example by deep drawing or by embossing.

Die höckerartige Ausformung 22 erstreckt sich nicht nur über die innere Wandung 17, sondern auch bis in den Bodenbereich 11 hinein, wo insbesondere der Teilbereich 23 der höckerartigen Ausformung 22 den Durchzug 13 auch entlang seiner Breitseiten umschließt.The hump-like formation 22 extends not only over the inner wall 17, but also into the bottom area 11, where in particular the portion 23 of the hump-like formation 22 encloses the passage 13 along its broad sides.

Die Figur 5 zeigt eine alternative Ausführungsform eines Rohrbodens 40. Der Rohrboden 40 weist einen Bodenbereich 41 auf, welcher mehrere Öffnungen 42 aufweist, welche von kragenartigen Durchzügen 43 umrandet sind.The FIG. 5 shows an alternative embodiment of a tube plate 40. The tubesheet 40 has a bottom portion 41 which has a plurality of openings 42 which are surrounded by collar-like passages 43.

Die Durchzüge 43 beziehungsweise die Öffnungen 42 haben im Ausführungsbeispiel der Figur 5 eine kürzere Erstreckung in der Breite des Rohrbodens 40. Die Breite des Rohrbodens 40 wird hier und auch in den anderen Ausführungsbeispielen jeweils von einem aufgestellten Randbereich 45 zu dem diesem gegenüberliegenden aufgestellten Randbereich gemessen.The passages 43 and the openings 42 have in the embodiment of FIG. 5 a shorter extension in the width of the tube bottom 40th Die Breite des Tube bottom 40 is measured here and also in the other exemplary embodiments in each case by an erected edge region 45 to the edge region opposite thereto.

Um diese Verkürzung der Öffnungen 42 beziehungsweise der Durchzüge 43 im Vergleich zur Ausführung der Figur 4 zu kompensieren, weist die höckerartige Ausformung 48 einen verlängerten Bereich auf, welcher als Plateau 50 ausgebildet ist. Wie auch in der vorausgegangenen Figur 4 umschließt ein Teilbereich 49 der höckerartigen Ausformung 48 auch die Breitseiten des jeweiligen Durchzugs 43 teilweise. Die höckerartige Ausformung 48 weist ebenfalls eine zum aufgestellten Randbereich 45 hin weisende Fläche auf, welche als Zentrierhilfe verwendet werden kann.To this shortening of the openings 42 and the passages 43 in comparison to the execution of FIG. 4 to compensate, the hump-like formation 48 on an extended portion, which is formed as a plateau 50. As in the previous one FIG. 4 A portion 49 of the hump-like formation 48 also partially encloses the broad sides of the respective passage 43. The hump-like formation 48 likewise has an area facing the raised edge region 45, which can be used as a centering aid.

Die U-förmige Rinne 44 ist durch den aufgestellten Randbereich 45, die innere Wandung 47 und den Rinnenboden 51 ausgebildet. Der aufgestellte Randbereich 45 weist Schlitze auf, welche zur Befestigung des kastenartigen Deckels im Rohrboden 40 dienen können. Die Befestigung des kastenartigen Deckels kann beispielsweise durch Verklemmen, das Vorsehen einer Wellschlitz-Bördelung oder unter Zuhilfenahme anderer bekannter Fixierelemente erreicht werden.The U-shaped channel 44 is formed by the erected edge region 45, the inner wall 47 and the channel bottom 51. The erected edge region 45 has slots, which can serve to secure the box-like cover in the tube plate 40. The attachment of the box-like cover can be achieved, for example, by jamming, the provision of a corrugated slot flanging or with the aid of other known fixing elements.

Die höckerartige Ausformung 48, insbesondere das Plateau 50 und der Teilbereich 49 sind ebenfalls durch einen Prägevorgang oder durch ein Tiefziehen aus der inneren Wandung 47 beziehungsweise dem Bodenbereich 41 ausgeformt.The hump-like shape 48, in particular the plateau 50 and the portion 49 are also formed by an embossing process or by deep drawing from the inner wall 47 and the bottom portion 41.

Das Plateau 50 dient der Überbrückung zwischen der U-förmigen Rinne 44 und dem Durchzug 43. Es muss bevorzugt flach genug sein, dass ausreichend Material an der Unterseite des Rohrbodens 40 verbleibt, um eine ausreichende Einführschräge ausbilden zu können und gleichzeitig hoch genug sein, um eine ausreichende Höhe der U-förmigen Rinne 44 auf der Innenseite zu gewährleisten. Das Plateau 50 ist im Ausführungsbeispiel der Figur 5 hoch ausgebildet. Dies ermöglicht eine ausreichende Höhe der U-förmigen Rinne 44, ist jedoch nicht optimal bezüglich der Einführschräge an der Unterseite. Die nachfolgende Figur 6 zeigt ein Plateau 70, welches flacher ausgebildet ist und somit vorteilhafter hinsichtlich der Ausbildung einer Einführschräge ist, jedoch gleichzeitig eine niedrigere Höhe der U-förmigen Rinne bedingt, was nachteilig ist.The plateau 50 serves to bridge between the U-shaped groove 44 and the passage 43. It must preferably be shallow enough that sufficient material remains on the underside of the tube bottom 40 in order to form a sufficient insertion be able and at the same time high enough to to ensure a sufficient height of the U-shaped groove 44 on the inside. The plateau 50 is in the embodiment of FIG. 5 highly trained. This allows a sufficient height of the U-shaped groove 44, but is not optimal with respect to the insertion slope at the bottom. The following FIG. 6 shows a plateau 70, which is flatter and thus more advantageous in terms of the formation of an insertion bevel is, but at the same time a lower height of the U-shaped channel conditionally, which is disadvantageous.

Die Figur 6 zeigt ein weiteres alternatives Ausführungsbeispiel eines Rohrbodens 60, welcher einen Bodenbereich 61 mit einer darin angeordneten Öffnung 62 und einem kragenartigen Durchzug 63 aufweist. Die Öffnung 62 beziehungsweise der Durchzug 63 weisen in Figur 6 eine relativ kurze Erstreckung in der Breite des Rohrbodens 60 auf. Die höckerartige Ausformung 68 weist aus diesem Grunde ebenfalls ein Plateau 70 auf, wobei das Plateau 70 im Vergleich zum Plateau 50 der vorausgegangenen Figur 5 kürzer und flacher ausfällt. Dafür ist der Teilbereich 69, welcher die Breitseiten der Durchzüge 63 umfasst, noch weiter aus der Ebene des Bodenbereichs 61 ausgeformt als das Plateau 70. Der Teilbereich 69 bildet einen U-förmigen Wulst, welcher den Durchzug 63 sowohl an den Breitseiten als auch an der Schmalseite umschließt.The FIG. 6 shows a further alternative embodiment of a tube plate 60, which has a bottom portion 61 with an opening 62 arranged therein and a collar-like passage 63. The opening 62 and the passage 63 point in FIG. 6 a relatively short extension in the width of the tube plate 60. The hump-like formation 68, for this reason, also has a plateau 70, the plateau 70 compared to the plateau 50 of the preceding FIG. 5 shorter and flatter fails. For this, the portion 69, which includes the broad sides of the passages 63, further formed from the plane of the bottom portion 61 as the plateau 70. The portion 69 forms a U-shaped bead, which the passage 63 both on the broad sides and on the The narrow side encloses.

Auch der Rohrboden 60 weist eine U-förmige Rinne 64 auf. Die U-förmige Rinne 64 ist analog der vorausgegangenen Figuren durch einen aufgestellten Randbereich 65, eine diesem gegenüberliegende innere Wandung 67 und einen Rinnenboden 71 gebildet. Der aufgestellte Randbereich 65 weist ebenfalls im oberen Bereich einen nach außen abgewinkelten Teilbereich 66 auf. Die höckerartige Ausformung 68 weist auch eine zum aufgestellten Randbereich 65 gerichtete Fläche auf, welche als Zentrierhilfe verwendet werden kann.Also, the tube plate 60 has a U-shaped groove 64. The U-shaped channel 64 is analogous to the preceding figures by a raised edge portion 65, an inner wall opposite this 67 and a channel bottom 71 formed. The erected edge region 65 also has an outwardly angled portion 66 in the upper region. The hump-shaped formation 68 also has an area directed to the raised edge area 65, which can be used as a centering aid.

Die Figur 7 zeigt eine erfindungsgemäße Ausführung eines Rohrbodens 80. Der Rohrboden 80 weist einen Bodenbereich 81 auf. Im Bodenbereich 81 sind Öffnungen 82 eingeformt, welche von kragenartigen Durchzügen 83 umrandet sind. Die Öffnungen 82 wiesen zwei sich gegenüberliegende Schmalseiten 98 auf und zwei sich gegenüberliegende Breitseiten 97. Entsprechend weisen auch die Durchzüge 83, welche die Öffnungen 82 umranden jeweils zwei Schmalseiten 98 und zwei Breitseiten 97 auf. Die U-förmige Rinne 84 ist durch einen aufgestellten Randbereich 85 und eine diesem gegenüberliegende innere Wandung 87 und dem Rinnenboden 94 gebildet.The FIG. 7 shows an inventive embodiment of a tube plate 80. The tube plate 80 has a bottom portion 81. In the bottom region 81 openings 82 are formed, which are surrounded by collar-like passages 83. The openings 82 had two opposite narrow sides 98 and two opposite broad sides 97. Accordingly, the passages 83, which surround the openings 82 each have two narrow sides 98 and two broad sides 97. The U-shaped groove 84 is formed by a raised edge portion 85 and an inner wall 87 opposite thereto and the channel bottom 94.

Aus der inneren Wandung 87 und dem Bodenbereich 81 ist eine höckerartige Ausformung 88 ausgeformt, welche insbesondere mit der dem aufgestellten Randbereich 85 zugewandten Fläche 91 einen geringeren Winkel zum aufgestellten Randbereich 85 einschließt als die innere Wandung 87. Zusätzlich weist die höckerartige Ausformung 88 eine von oben eingeformte Vertiefung 90 auf, welche unmittelbar benachbart zum Endbereich des Durchzugs 83 angeordnet ist.From the inner wall 87 and the bottom portion 81 a hump-like shape 88 is formed, which in particular with the raised edge portion 85 facing surface 91 includes a smaller angle to the erected edge portion 85 than the inner wall 87. In addition, the hump-like shape 88 has a from above formed recess 90, which is disposed immediately adjacent to the end portion of the passage 83.

Durch die Vertiefung 90, welche ebenfalls durch ein Prägeverfahren oder durch Tiefziehen in die höckerartige Ausformung 88 eingeformt werden kann, findet eine Materialverlagerung nach unten hin statt, welche insbesondere an der nach unten gerichteten Seite 96 der inneren Wandung 87 beziehungsweise des Bodenbereichs 81 eine Ausbildung einer Einführschräge gestattet. Durch die Materialverlagerung kann die Einführschräge insgesamt größer ausgebildet werden, wobei insbesondere die Ausdehnung der Einführschräge entlang der Einführrichtung der Rohre vergrößert werden kann. Dies vereinfacht das Einführen der Rohre und erlaubt somit einen stabileren Montageprozess. Die Einführschräge ist in Figur 7 nicht dargestellt.By the recess 90, which can also be formed by a stamping process or by deep drawing in the bump-like formation 88, a material displacement takes place downwards, which in particular on the downwardly directed side 96 of the inner wall 87 and the bottom portion 81 a formation of a Insertion bevel allowed. As a result of the material displacement, the insertion bevel can be made larger overall, wherein in particular the extent of the insertion bevel along the direction of insertion of the tubes can be increased. This simplifies the insertion of the tubes and thus allows a more stable assembly process. The insertion bevel is in FIG. 7 not shown.

In Figur 7 umschließt die höckerartige Ausformung 88 mit einem Teilbereich 89 auch die Breitseiten 97 des Durchzugs 83. Weiterhin bildet die höckerartige Ausformung eine ausreichende Höhe der U-förmigen Rinne 84 aus, wodurch auch eine sichere Positionierung eines kastenartigen Deckels gewährleistet werden kann.In FIG. 7 The hump-like formation 88 also encloses the broad sides 97 of the passage 83 with a portion 89. Furthermore, the hump-like formation forms a sufficient height of the U-shaped groove 84, whereby a secure positioning of a box-like cover can be ensured.

Die Figur 8 zeigt eine weitere perspektivische Ansicht des Rohrbodens 80, wie er bereits in der Figur 7 gezeigt wurde. In Figur 8 ist insbesondere zu erkennen, dass die Vertiefung 90 durch eine geradlinige, parallel zur U-förmigen Rinne 84 verlaufende Vertiefung gebildet ist. Weiterhin ist in Figur 8 zu erkennen, dass sowohl der Endbereich 99 der Breitseiten 97 als auch die Schmalseite 98 des Durchzugs 83 beziehungsweise der Öffnung 82 vom Teilbereich 89 der höckerartigen Ausformung 88 umschlossen sind. Weiterhin bildet die höckerartige Ausformung 88 auch eine ebene, schräggestellte Fläche 91 aus, welche als Zentrierhilfe für den Fußbereich eines kastenartigen Deckels verwendet werden kann.The FIG. 8 shows a further perspective view of the tube plate 80, as already in the FIG. 7 was shown. In FIG. 8 it can be seen in particular that the recess 90 is formed by a straight, parallel to the U-shaped groove 84 extending recess. Furthermore, in FIG. 8 to recognize that both the end portion 99 of the broad sides 97 and the narrow side 98 of the passage 83 and the opening 82 from the portion 89 of the bump-like formation 88 are enclosed. Furthermore, the hump-like shape 88 also forms a flat, inclined surface 91, which can be used as a centering aid for the foot of a box-like lid.

Die Figur 9 zeigt eine Ansicht des Rohrbodens 80 der Figuren 7 und 8 mit einer Blickrichtung von unten auf die Öffnung 82 beziehungsweise den Durchzug 83. Es ist die von der U-förmigen Rinne 84 abgewandte Seite 96 der inneren Wandung 87 zu erkennen. In der Figur 9 sind weiterhin insbesondere die Einführschrägen 92 und 93 zu erkennen, welche sowohl an der Schmalseite 98 des Durchzugs 83 als auch an den Endbereichen 99 der beiden Breitseiten 97 verlaufen. Diese Einführschrägen 92 und 93 werden insbesondere im Bereich der durch die Vertiefung 90 erzeugten Materialverlagerung ausgebildet. Diese dienen insbesondere der vereinfachten Positionierung und Montage der Rohre in den Öffnungen 82.The FIG. 9 shows a view of the tube sheet 80 of FIGS. 7 and 8 with a view from below of the opening 82 and the passage 83. It is the side facing away from the U-shaped groove 84 side 96 of the inner wall 87 can be seen. In the FIG. 9 Furthermore, in particular the insertion bevels 92 and 93 can be seen, which run both on the narrow side 98 of the passage 83 and on the end regions 99 of the two broad sides 97. These insertion bevels 92 and 93 are formed in particular in the region of the material displacement produced by the depression 90. These serve in particular for the simplified positioning and mounting of the tubes in the openings 82.

Die erfindungsgemäße Ausführungsform, wie sie in den Figuren 7 bis 9 gezeigt ist, kann insbesondere auch mit den vorausgegangenen Ausführungsformen für weniger breite Durchzüge 43 und breitere Durchzüge 13 der Figuren 4 bis 6 kombiniert werden. Insbesondere die zusätzliche Vertiefung 90, welche zu einer Materialverlagerung führt, ist dabei vorteilhaft, um das benötigte Material an der Unterseite der Durchzüge 83 zu erhalten, um ausreichend dimensionierte Einführschrägen 92 und 93 ausbilden zu können. Dies liegt insbesondere darin begründet, dass die Rohrböden, wie sie in den Figuren 1 bis 9 gezeigt sind, bevorzugt aus einem platinenartigen Material durch mehrere Tiefziehvorgänge erzeugt werden. Bei jedem Tiefziehvorgang finden Materialstauchungen und Materialdehnungen statt, welche letztlich zu einer Verdünnung des Grundmaterials führen. Durch das Einbringen einer zusätzlichen Vertiefung kann dieser teilweise nachteiligen Verdünnung entgegengewirkt werden und gezielt Material an definierte Bereiche verlagert werden.The embodiment of the invention as shown in the FIGS. 7 to 9 can be shown, in particular with the previous embodiments for less wide passages 43 and wider passages 13 of the FIGS. 4 to 6 be combined. In particular, the additional recess 90, which leads to a material displacement, is advantageous in order to obtain the required material on the underside of the passages 83 in order to form sufficiently sized chamfers 92 and 93 can. This is due in particular to the fact that the tubesheets, as in the FIGS. 1 to 9 are shown, preferably produced from a platinum-like material by a plurality of deep drawing operations. In each deep-drawing process, material compression and expansion take place, which ultimately lead to a dilution of the base material. By introducing an additional depression, this partially disadvantageous dilution can be counteracted and material can be selectively transferred to defined areas.

Die Figur 10 zeigt eine vergleichende Ansicht einer Ausführungsform mit einem Rohrboden 80 mit einem weniger breiten Durchzug 83 und einem breiteren Durchzug 13, wie er bereits in der Figur 4 gezeigt wurde. Es ist in Figur 10 insbesondere zu erkennen, dass die U-förmige Rinne 14 beziehungsweise 84 unabhängig von der Breite des Durchzugs 13 beziehungsweise 83 identisch ausgebildet ist. Im Falle des weniger breiten Durchzugs 83 ist in die höckerartige Ausformung 88 die Vertiefung 90 eingeformt, wie sie in den Figuren 7 bis 9 dargestellt wurde. Im Falle des breiteren Durchzugs 13 ist diese Vertiefung, wie bereits in Figur 4 dargestellt, nicht vorgesehen. In einer alternativen Ausführungsform kann die Vertiefung jedoch auch mit einem breiten Durchzug 13 kombiniert werden.The FIG. 10 shows a comparative view of an embodiment with a tube sheet 80 with a less wide passage 83 and a wider passage 13, as it is already in the FIG. 4 was shown. It is in FIG. 10 In particular, it can be seen that the U-shaped groove 14 or 84 is designed to be identical regardless of the width of the passage 13 or 83. In the case of the less wide passage 83, the recess 90 is formed in the hump-like shape 88, as shown in the FIGS. 7 to 9 was presented. In the case of the broader Passage 13 is this depression, as already in FIG. 4 shown, not provided. However, in an alternative embodiment, the recess may also be combined with a wide passage 13.

Die Figur 11 zeigt eine vergleichende Ansicht zweier Einführschrägen 101 beziehungsweise 102, wie sie abhängig von der Breite des Durchzugs, welcher mit dem Bezugszeichen 100 benannt ist, ausgebildet werden können. Die Einführschrägen 101 und 102 bilden insbesondere die stirnseitigen Einführschrägen ab, welche an der jeweiligen Schmalseite des Durchzugs 100 eingeformt sind. Bevorzugt weist die an der Schmalseite ausgebildete Einführschräge gegenüber einer Vertikalen einen Winkel von ungefähr 40° auf, während die Einführschrägen an den Endbereichen der Breitseiten bevorzugt einen Winkel von ungefähr 30° zur Vertikalen aufweisen. Diese Werte sind beispielhaft und beschränken insbesondere die Ausgestaltung der einzelnen Ausführungsformen nicht.The FIG. 11 shows a comparative view of two insertion bevels 101 and 102, as they can be formed depending on the width of the passage, which is designated by the reference numeral 100. The insertion bevels 101 and 102 form in particular the end-side insertion bevels, which are formed on the respective narrow side of the passage 100. The insertion bevel formed on the narrow side preferably has an angle of approximately 40 ° relative to a vertical, while the insertion bevels at the end regions of the broad sides preferably have an angle of approximately 30 ° to the vertical. These values are exemplary and in particular do not limit the design of the individual embodiments.

Die Ausführungsformen der vorangegangenen Figuren 1 bis 11 sind beispielhaft und stellen teilweise Ausführungen dar, wie sie aus dem Stand der Technik bekannt sind. Insbesondere eine Kombination der Merkmale der aus dem Stand der Technik bekannten Ausführungsformen, welche in den Figuren 1 bis 6 gezeigt sind, und der Merkmale der erfindungsgemäßen Ausführungsformen, welche in den Figuren 7 bis 9 gezeigt sind, ist jederzeit möglich. Die einzelnen Ausführungsformen der Figuren weisen insbesondere hinsichtlich der Materialwahl, der Anordnung der einzelnen Elemente und der Dimensionierung der jeweiligen Elemente keinen beschränkenden Charakter auf.The embodiments of the preceding FIGS. 1 to 11 are exemplary and partially represent embodiments as known in the art. In particular, a combination of the features of the known from the prior art embodiments, which in the FIGS. 1 to 6 are shown, and the features of the embodiments according to the invention, which in the FIGS. 7 to 9 are shown is possible at any time. The individual embodiments of the figures, in particular with regard to the choice of material, the arrangement of the individual elements and the dimensioning of the respective elements have no limiting character.

Claims (11)

  1. A tube bottom (80) for a heat exchanger, which has a bottom region (81) with slot-type openings (82), wherein the slot-type openings (82) are rimmed by eyelets (83) and the tube bottom (80) has an attached rim region (85), wherein between the eyelets (83) and the attached rim region (85), a U-shaped trough (84) is formed as a receiving area for the bottom of a box-like cover, wherein the U-shaped trough (84) is formed by an inner first wall (87), the attached rim region (85) and a second wall forming the trough bottom (94), wherein the inner first wall (87) has at least one hump-like portion (88) in the extension of an eyelet (83) on the side (95) facing the U-shaped trough (84), which bounds the breadth of the U-shaped trough (84) between the attached rim region (85) and the first wall (87) and extends from the trough bottom (94) to the end region of the eyelet (83) facing the U-shaped trough (84), characterised in that a depression (90) is formed in the hump-like portion (88) which serves to produce a lead-in chamfer (92, 93) for tubes.
  2. The tube bottom according to claim 1, characterised in that a displacement of the material towards the side (96) of the first wall (87) facing away from the U-shaped trough (84) is formed by the moulded-in depression (90).
  3. The tube bottom (80) according to claim 1 or 2, characterised in that the deflection of the hump-like portion (88) from the inner wall (87) increases from the trough bottom (94) towards the respective eyelet (83) .
  4. The tube bottom (80) according to one of the preceding claims, characterised in that the hump-like portion (88) extends into the bottom region (81) and at least partly surrounds the eyelet (83).
  5. The tube bottom (80) according to one of the preceding claims, characterised in that the first wall (87) has a lead-in chamfer (92, 93) on its side (96) facing away from the U-shaped trough (84), wherein the lead-in chamfer (92, 93) is arranged on the hump-like portion (88) and the lead-in chamfer (92, 93) creates a tapering of the slot-type openings (82) rimmed by the eyelets (83).
  6. The tube bottom (80) according to claim 5, characterised in that the lead-in chamfer (92, 93) is formed on the moulded-in depression (90).
  7. The tube bottom (80) according to one of claims 5 or 6, characterised in that the slot-type openings (82) have two opposing narrow sides (98) and two opposing wide sides (97), wherein a slot-type opening (82) is tapered by lead-in chamfers (92, 93) on the narrow side (98) and on the end regions (99) of the wide sides (97) facing the narrow side (98).
  8. The tube bottom (80) according to one of the preceding claims, characterised in that the hump-like portion (88) and/or the depression (90) is impressed into the tube bottom (80) in the hump-like portion (88) and/or moulded in by means of thermoforming.
  9. The tube bottom (80) according to one of the preceding claims, characterised in that the first wall (87) and the surface (91) of the hump-like portion (88) oriented to the U-shaped trough (84) are directed towards the trough bottom (94) at an angle of more than 90 degrees.
  10. The tube bottom (80) according to one of the preceding claims, characterised in that the surface (91) of the hump-like portion (88) facing the U-shaped trough (84) provides a centring aid for inserting the box-like cover into the U-shaped trough (84) .
  11. A heat exchanger with two tube bottoms according to any one of the preceding claims, characterised in that the heat exchanger has a plurality of tubes, which are arranged parallel to each other and are accommodated at their ends in each case in an opening of a tube bottom rimmed by an eyelet, wherein the tubes are each inserted in the respective openings along the lead-in chamfers, wherein a box-like cover, which is connected to the respective tube bottom, is inserted into the U-shaped trough of each tube bottom.
EP15738319.1A 2014-07-15 2015-07-13 Tube bottom and heat exchanger Not-in-force EP3169965B1 (en)

Applications Claiming Priority (2)

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DE102014213758.6A DE102014213758A1 (en) 2014-07-15 2014-07-15 Tube bottom and heat exchanger
PCT/EP2015/065989 WO2016008855A1 (en) 2014-07-15 2015-07-13 Tube bottom and heat exchanger

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EP3169965A1 EP3169965A1 (en) 2017-05-24
EP3169965B1 true EP3169965B1 (en) 2018-04-11

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US (1) US20170122680A1 (en)
EP (1) EP3169965B1 (en)
JP (1) JP2017520744A (en)
CN (1) CN106662413B (en)
BR (1) BR112017000736B1 (en)
DE (1) DE102014213758A1 (en)
WO (1) WO2016008855A1 (en)

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EP3428567B1 (en) * 2017-07-13 2020-12-16 Valeo Autosystemy SP. Z.O.O. A heat exchanger

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FR2720490B1 (en) * 1994-05-26 1996-07-12 Valeo Thermique Moteur Sa Reinforced collecting plate for heat exchanger.
JP3624486B2 (en) * 1994-12-20 2005-03-02 株式会社デンソー Heat exchanger and its manufacturing method
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Publication number Publication date
EP3169965A1 (en) 2017-05-24
JP2017520744A (en) 2017-07-27
CN106662413A (en) 2017-05-10
US20170122680A1 (en) 2017-05-04
BR112017000736A2 (en) 2017-11-14
DE102014213758A1 (en) 2016-01-21
WO2016008855A1 (en) 2016-01-21
CN106662413B (en) 2018-08-31
BR112017000736B1 (en) 2021-01-26

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