EP0321480A1 - Echangeur de chaleur du type a plaques. - Google Patents

Echangeur de chaleur du type a plaques.

Info

Publication number
EP0321480A1
EP0321480A1 EP19870905565 EP87905565A EP0321480A1 EP 0321480 A1 EP0321480 A1 EP 0321480A1 EP 19870905565 EP19870905565 EP 19870905565 EP 87905565 A EP87905565 A EP 87905565A EP 0321480 A1 EP0321480 A1 EP 0321480A1
Authority
EP
European Patent Office
Prior art keywords
plate
groove
plates
groove sections
pair
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.)
Granted
Application number
EP19870905565
Other languages
German (de)
English (en)
Other versions
EP0321480B1 (fr
Inventor
Gerhard Fischer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0321480A1 publication Critical patent/EP0321480A1/fr
Application granted granted Critical
Publication of EP0321480B1 publication Critical patent/EP0321480B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media

Definitions

  • the invention relates to a plate heat exchanger which has at least three stacked exchanger plates, two successive exchanger plates forming a flow path with each other, which exchanger plates are made of sheet metal and to form flow channels between the plates and to support the plates with a pressed one Flow path covering wave pattern are provided, which forms grooves transverse to the wave direction and obliquely to the flow center line, the surface of the wave pattern of each exchanger plate consists of a number of adjoining partial areas, the grooves in the individual partial areas each forming a family of mutually parallel groove sections which end the boundaries of the area in question, and the groups of the groove sections of different partial areas run obliquely to one another and each partial area of the wave pattern of a Austa uscherplatte a same-sized portion of the wave pattern of another exchanger plate, which forms a flow path with the first-mentioned plate, opposite flush.
  • Plate heat exchangers enable the transfer of large amounts of heat from one medium to another medium with a relatively small space requirement and are used and are found, in addition to pure heat transport tasks, for heating or cooling substances before or after a chemical or physical treatment or before or after storage frequently used in the execution of chemical and / or physical treatments or chemical conversions of flowable substances. Maintaining a certain temperature profile of the media passing through the plate heat exchanger in the course of the flow is often of great importance. Of equal importance is the possibility of being able to select or design the flow resistance in the flow channels in a simple manner according to the respective application for each of the media flowing through such a plate heat exchanger.
  • Groove portions form a lattice-like pattern with each other; the flow resistance that results in the flow channel with such an arrangement of two exchanger plates is relatively high.
  • the plate heat exchanger according to the invention of the type mentioned at the outset is characterized in that, in the case of at least one pair of exchanger plates which form a flow path with one another, the wave crests of the one plate are located only in the region of the ends of the groove sections of this plate on the opposite wave crests of the other plate of the pair, and likewise support in the area of the ends of the groove sections of said other plate and freely span the distance between these support points.
  • a preferred embodiment of the plate heat exchanger according to the invention is characterized in that the wave apexes running along the groove sections of the partial areas of the wave pattern of the one exchanger plate of a pair of plates forming a flow path, which wave apexes face the other plate of this plate pair, have one end at the end Support one of the wave vertexes of the other plate facing one plate and with its other end at the end of a parallel wave crest of the other plate adjacent to the latter wave crest and freely span the valley groove in between of the wave pattern of the other plate, and if necessary one or more between two such support points Groove sections are located in which the groove trains of both plates of a pair overlap each other without mutual support.
  • This training has the advantage of a particularly favorable flow behavior.
  • the measure provided for in this embodiment if any, provides a further improvement in the flow behavior, especially in those cases in which work is carried out with relatively low pressures, so that the mutual support of the exchanger plates forming a flow channel with one another can be provided at greater intervals.
  • a preferred embodiment of the aforementioned embodiment of the plate heat exchanger according to the invention is characterized in that the wave pattern of the exchanger plates has an even number of partial areas which follow one another in the direction of flow or transversely thereto, wherein in one half of the number of partial areas the groove sections at a first angle to the direction of flow run, and in the other half of the number of sub-areas the groove sections run at a second angle to the flow direction, the longitudinal extent of the individual sub-areas measured in the direction of the sequence of the sub-areas being the same and wherein when such an exchanger plate is placed one on top of the other, it has a second, identical design Heat exchanger plate, which is rotated by 180 ° about an axis perpendicular to the geometric center of the plate, the partial areas with a first angle to the flow direction on the groove sections of the one plate are opposite to the partial areas with groove sections of the other plate running at a second angle to the flow direction, and the wave crests of the wave pattern of the second pattern plate facing the first-ment
  • this embodiment farm Due to the proposed division of the wave pattern, this embodiment farm has the advantage that the differences in the thermal behavior (thermal length) in the individual sub-areas are well balanced in their sum and thus a balanced thermal behavior is achieved overall, and the further advantage that with this configuration of the wave pattern, such a pair of exchanger plates can be easily formed from two identical plates, one plate of this pair being pivoted in relation to the other plate by 180 ° about a geometric axis running through the geometric center of the plates perpendicular to the plane of the plate .
  • the two angles mentioned, which enclose the mutually supporting groove sections with the flow direction, differ less than 30 °.
  • the wave pattern of the exchanger plates has a number of partial areas which can be divided by four, which lie in two surface strips, which are separated by a separation line running in the direction of flow or transversely thereto, the wave pattern being mirror-inverted with respect to the separation line between the two surface strips.
  • the wave pattern of the exchanger plates is formed by four or more partial areas which, viewed in the flow direction, adjoin one another in pairs and adjoin one another at the separating lines, the groove sections adjoining one another via the separating lines form, which run from one longitudinal edge of the wave pattern to the other longitudinal edge of the wave pattern and wherein in the groove trains the groove sections follow one another in a zigzag manner and in each case a pair of groove sections which run more obliquely to the flow direction is followed by a pair of groove sections which run obliquely to the flow direction and the tips of the more inclined groove portions of one plate of a pair of exchanger plates on the tips of the less inclined ve support the grooved groove portions of the other plate of this pair, and conversely, the tips of the more inclined groove portions of the other plate of a pair are supported on the tips of the less inclined groove portions of the one plate of the pair.
  • the wave pattern of the exchanger plates is formed by four or more, viewed in the flow direction, pairs lying side by side, butting against each other at the dividing lines, the groove sections forming the grooves that join one another over the dividing lines
  • the longitudinal edge of the wave pattern extends to the other longitudinal edge of the wave pattern, and wherein the groove sections in the groove trains follow one another in a zigzag fashion and at least one pair of groove sections running more obliquely to the flow direction is provided, onto which several pairs run less obliquely to the flow direction.
  • the wave pattern of the exchanger plates is formed by two partial regions which, viewed in the direction of flow, adjoin one another at a dividing line, the geometrical extension of the groove sections of the one partial region being along the dividing line covers a groove section of the other section starting there and leaving this groove section at an angle at the outer edge of the other section parallel to the dividing line with a groove section adjacent to this groove section and also the geometrical extension of the groove sections of the other section coinciding with the separating line there beginning groove section of the covers a partial area and exits this groove section obliquely on the outer edge of the one partial area parallel to the dividing line and coincides with a groove section adjacent to this groove section.
  • Another embodiment of the plate heat exchanger according to the invention is characterized in that, in the case of both exchanger plates forming a flow path with one another, the groove sections are parts of zigzag groove grooves, the
  • Zigzag groove sections are preferably approximately perpendicular to one another, that the groove sections of the groove trains have two different lengths, which differ by the width of one or two grooves, and that the groove sections of one plate of the exchanger plate pair each align with a groove section of the other plate cover each, with a shorter groove section of the one plate overlapping with a longer groove section of the other plate and a shorter groove section of the other plate with a longer groove section of the one plate.
  • the wave pattern of the one exchanger plate type is geometrically related to the wave pattern of the other exchanger plate type, the one pattern being different from the other by pivoting through 180 ° about one lying in the plane of the pattern and preferably through its Center geometric axis and / or by swapping parts of the pattern with each other. It is furthermore advantageous in the interest of a uniform flow if the intersections of the groove sections of the wave patterns of two plates lying next to one another and forming a flow path lie symmetrically with respect to a center line of the plates lying approximately in the plate plane.
  • FIG. 1 shows a part of a plate heat exchanger with several plate pairs forming a flow path with each other in longitudinal section
  • Fig. 2 shows an exchanger plate provided in such a plate heat exchanger in plan view
  • Fig. 3 also in plan view part of the wave pattern of a pair of exchanger plates of a heat exchanger according to the invention in Top view
  • FIG. 4 this pair of plates in section along the line IV-IV in FIG. 3
  • FIG. 5 a section along the line VV in FIG. 3
  • 6a to 13a show, in a representation corresponding to FIG.
  • FIGS. 6b to 13b each correspond to one plate of such a pair of exchangers
  • FIGS. 6c to 13c each show a modified plate derived from the plates according to FIGS. 6b to 13b by turning or displacing the wave pattern
  • FIGS. 6d to 13d exchanger plate pairs which are each formed from a plate according to FIGS. 6b to 13b and a plate according to FIGS. 6c to 13c and a higher one Flow resistance of the flow paths have as the exchange plate pairs shown in FIGS. 6a to 13a.
  • plate heat exchangers have a number of packet-like stacked exchanger plates, with two successive exchanger plates 1, 2 in the packet stratification having a flow path 3 or 4 for one of the media to be passed through the heat exchanger, between which the heat exchange takes place.
  • flow paths 3 are provided in alternating order for one medium and flow paths 4 for the other medium.
  • the exchange plates 1, 2 are provided with a wave pattern 5, the surface of the wave pattern 5 of each exchanger plate 1, 2 from a number adjoining sections 5a, 5b, 5c, 5d.
  • the flow of the media which are passed through the heat exchanger runs from one of the connection openings 6 of such a heat exchanger plate to another connection opening 6 of the same, the flow path 3, 4 in question being covered by the wave pattern 5 and essentially in the area of the wave pattern
  • Flow center line 7 follows or, as the arrows 8 indicate, runs parallel to this.
  • the wave pattern forms grooves 9, 10 which run transversely to the wave direction 11 and obliquely to the flow center line 7.
  • the grooves 9, 10 each form a family running parallel to one another in the individual subregions 5a, 5b, 5c, 5d of the wave pattern 5
  • the groups of the belt sections 12 different sections run at an angle to each other.
  • Each sub-area of the wave pattern of one exchanger plate is flush with an equally large sub-area of the wave pattern of another exchanger plate, which forms a flow path 3, 4 with the first-mentioned plate.
  • the wave patterns of the two exchanger plates forming a flow path lie against one another at individual points, so that these plates are supported against one another, which with regard to pressure differences which exist in the individual flow paths 3, 4 and cause forces which act on the plates in the transverse direction 15 act is important.
  • the wave crests 17 of one plate of a pair of exchanger plates forming a flow path are supported on the opposite wave crest 18 of the other plate of the pair.
  • the support points 1 and 20 lie, as shown in FIG. 3, in which part of such a pair of plates is shown in a top view, only in the region of the ends 21 of the groove sections 12.
  • Fig. 6a shows in one of the Fig. 3 analog representation an embodiment arm, in which two exchanger plates are arranged one above the other, the lower wave apex 17 of the wave pattern of the upper exchanger plate in full lines and the (upper) wave apex 13 of the wave pattern facing this plate lower exchanger plate are shown in dashed lines.
  • the overhead crests of the top plate and the crests of the bottom plate of the pair of exchanger plates below are not shown in FIG. 6a.
  • a single plate 1 of this type is shown in FIG. 6b, analogously to the illustration in FIG.
  • the lower wave apex 17 of the wave pattern is drawn with solid lines and the upper wave apex 17a of the wave pattern is drawn with dashed lines.
  • two plates according to FIG. 6b are placed one on top of the other, the bottom plate with respect to the top plate of the pair being 180 ° around a geometric axis perpendicular to the geometric center 30 of the plate (s) is rotated.
  • the wave pattern 5 of the plates has an even number, namely four, subregions 5a, 5b, 5c, 5d. In the case shown, these partial areas follow one another in the direction 7 of the flow center line. However, this wave pattern can also be provided offset by 90 ° with respect to the illustration in FIG. 6a, in which case the subregions then follow one another transversely to the flow direction.
  • the groove sections 12 run at a first angle ⁇ to the flow direction 7 and in the other two sections 5c 5d of the wave pattern, the groove sections 12 run at a second angle ⁇ to the flow direction.
  • the longitudinal extent 29 measured in the direction of the sequence of the partial areas is practically the same for all partial areas.
  • the plate shown in FIG. 6c is a modification of the plate according to FIG. 6b, and the wave pattern 5 'of the plate 2 according to FIG. 6c is obtained by turning the wave pattern 5 of the plate 1 according to FIG. 6b by one following the direction 7 , through the plate center 30 geometric axis through 180 °.
  • the wave pattern 5 'according to FIG. 6c can thus be pressed into flat plate material with the same tool as the wave pattern 5 according to FIG. 6b; 6c, two plates 2 according to FIG. 6c can be put together to form a pair of plates, as described above for two plates 1 according to FIG. 6b, which forms a flow path with the same properties as the plate pair shown in FIG. 6a.
  • a pair of plates according to FIG. 6d is obtained; in this pair of plates, the individual groove sections of the wave patterns of both plates each cross over a plurality of groove sections of the opposite plate, the wave apexes 17 of the upper plate resting successively on a series of wave apices 13 of the lower plate; analogous to FIG. 6a, the wave crests 17 of the upper plate facing the lower plate are drawn with full lines in FIG. 6d and the wave crests 18 of the lower plate facing the upper plate are drawn with dashed lines; in the case shown in FIG. 6d, the upper plate of the plate pair is a plate according to FIG.
  • FIG. 6b and the lower plate is a plate according to FIG. 6c.
  • the intersecting course of the groove sections and the mutual contact of the shaft crests 17, 13 of the plates of the plate pair shown in FIG. 6d at a number of points of abutment or support points results in a substantially higher flow resistance than is present in the plate pair according to FIG. 6a.
  • the crossing points are distributed over the longitudinal extent of the groove sections. you can thus provide flow paths with different flow resistance or different thermal length in a simple manner in a heat exchanger and thus achieve its adaptation to mutually different properties of the media between which the heat exchange is to take place. If plate pairs of two plates 1 according to FIG. 6b and plate pairs of two plates 2 according to FIG. 6c are arranged alternately in succession, one obtains a structure according to FIG.
  • the flow paths 3 can be assigned to one and the flow paths 4 to the other of the two media flowing through the heat exchanger.
  • the wave pattern 5, 5 'provided in the plates according to FIGS. 6b and 6c can, if desired, be provided several times in succession both in direction 7 of the flow center line and transversely thereto in order to achieve a larger wave pattern area on the exchanger plates.
  • FIGS. 7a and 7b which is similar to the embodiment shown in FIGS. 6a and 6b, the wave pattern of the exchanger plates is mirror-inverted with respect to a central dividing line 25.
  • the wave pattern which can be seen more clearly from FIG. 7b, which shows a plate of this embodiment, has a number that can be divided by four, in the illustrated case eight, partial areas 5a ', 5b', 5c ', 5d', 5a ", 5b” , 5c ", Sd", which lie successively in two surface strips 26, 27 running on both sides of the dividing line 25.
  • the lower, wave crests 17 of the upper plate are drawn with solid lines and the upper wave crests 18 of the lower plate are shown with dashed lines, as in FIG. 6a, and in FIGS. 7b and also in FIGS. 8b to 13b, corresponding to FIG. 6b, the top crests of the plate in question are dashed and the bottom crests of the plate in question are drawn with solid lines.
  • FIG. 7a of which, as mentioned, a single plate is shown in FIG. 7b, run in the partial areas 5a ', 5c' and 5a ", 5c" the groove sections 12 at a first angle ⁇ to the flow direction 7 and in the partial areas 5b ', Sd' and 5b ", 5d” the groove sections 12 run at a second angle ⁇ to the flow direction 7.
  • the longitudinal extent 29 of the partial areas, seen in the direction of the succession of these areas in the surface strips 26, 27, is practically the same for all partial areas.
  • the wave pattern can also be provided offset in this case by 90 ° with respect to the illustration in FIG. 7a, so that the partial regions then follow one another transversely to the flow direction.
  • the lower plate with respect to the upper plate is also perpendicular to the plate plate according to FIG. 7a and the plate pairs which are shown in FIGS. 8a to 13a to be described geometric axis, which runs through the plate center 30, rotated by 180 °.
  • the plate 2 shown in FIG. 7c is a modification of the plate 1 according to FIG. 7b, and the wave pattern shown in FIG. 7c is obtained by interchanging the two strips 26, 27 of the wave pattern according to FIG. 7b with one another and twisting the resultant Formed about a geometric axis perpendicular to the plane.
  • This modification can also be produced with a tool, which can be obtained by simply changing the tool used to form a wave pattern according to FIG. 7b.
  • FIGS. 8b to 13b and 8c to 13c The same applies to the plates to be described according to FIGS. 8b to 13b and 8c to 13c.
  • FIGS. 8d to 13d Flow resistance and a different thermal length than the plate pair according to Fig. 7a.
  • flow paths with different properties can also be formed in a simple manner by a modification of the wave pattern, which can be carried out easily in terms of production technology, in these execution farms in the heat exchanger.
  • a plate stratification can be provided both when constructing the heat exchangers from a single plate type and when constructing from two plate types, in which the mutually identical exchanger plate pairs have the same position or orientation in the exchanger, as explained in connection with FIGS. 6a to 6d is.
  • it looks advantageous, for example 7d can be seen an approximately symmetrical position of the curvatures or support points 20 'of the groove sections of the wave pattern of such plate pairs.
  • the wave pattern of two superimposed exchange plates forming a flow path with one another is formed by partial areas which, viewed in the flow direction 7, lie in pairs next to one another and abut one another at dividing lines 25 ', 25 "which run in the flow direction
  • eight such subregions 5a to 5h are provided, which form four pairs of subregions.
  • the groove sections 12 present in the individual subregions form, via the dividing lines 25 ', 25 ", adjacent to one another, which run from one longitudinal edge 22 of the wave pattern to the other longitudinal edge 23 of the wave pattern, and the groove sections 12 follow one another in a zigzag fashion in the groove trains 24 thus formed.
  • a pair of groove sections 12a, 12b which run more obliquely to the flow direction is followed by a pair of groove sections 12c, 12d which run less obliquely to the flow direction 7.
  • the tips 16 of one plate (FIG. 8b) of the pair of exchanger plates shown in FIG. 8a, formed by a pair of the more inclined groove sections 12a, 12b, are based on the pair of the less inclined groove sections 12c, 12d of the other plate Pair of formed tips 31 and vice versa the tips 31 ', which are formed by less inclined groove sections 12c, 12d of the first-mentioned plate, on tips 16', which are embodied by more inclined groove sections 12a, 12b of the second-mentioned plate.
  • the second-mentioned plate which lies below the first-mentioned plate in the plate pair shown in FIG. 8a, is identical to the first-mentioned plate according to FIG. 8b and is rotated by 180 ° with respect to the first-mentioned plate.
  • the plate 2 shown in FIG. 8c has a wave pattern 5 ', which is obtained from the wave pattern 5 of the plate 1 according to FIG. 3b by interchanging the two halves of the wave pattern 5. This makes it possible to produce a plate according to FIG. 8c with a tool, which can be obtained by slightly modifying a tool used to produce plates according to FIG. 8b.
  • a plate pair according to FIG. 8d is obtained in which the wave crests 17 of the one plate are located not only at the tips but also at locations in the middle of the groove sections Support 16 "on shaft apices 18 of the other plate; this results in a different flow resistance and a different thermal length than in the plate pair according to FIG. 8a.
  • the wave pattern r of the exchanger plates has a number, namely eight, subregions 5a to 5h, which are seen in pairs next to one another in the flow direction 7 and on dividing lines 25 ', 25''meet.
  • the groove sections of the partial areas of the wave pattern form groove lines 24 adjoining one another via the dividing lines, which run from one longitudinal edge 22 of the wave pattern to the other longitudinal edge 23 of the wave pattern.
  • the groove sections follow one another in a zigzag fashion, and at least one pair of groove sections 12a, 12b extending more obliquely to the flow direction 7 is provided, followed by several pairs of groove sections 12c, 12d extending less obliquely to the flow direction 7.
  • the tips 16 formed by the more inclined groove sections 12a, 12b are provided on tips 31 of the less inclined groove sections of the other plate of the pair.
  • there are a plurality of groove sections 12 ' which coincide with groove sections 12 "of the other plate of the plate pair running parallel thereto and in which there is no support.
  • the modified plate 2 according to FIG. 9c has a wave pattern which results from the wave pattern of the plate 1 according to FIG. 9b by turning one in geometric axis lying on the plate plane.
  • the plate 9c can thus be obtained by slightly changing a tool used for the production of the plate according to FIG. 9b.
  • Stacking a plate according to FIG. 9b and a plate according to FIG. 9c leads to a plate pair according to FIG. 9d, which has a higher flow resistance and a different thermal length than the plate pair according to FIG. 9a.
  • the waven pattern of the exchanger plates is formed by two partial regions 5a, 5b lying next to one another in the flow direction, which abut one another on a dividing line 25.
  • the geometric extension 35 of the groove sections 36a of the one partial area 5a coincides at the dividing line 25 with a groove section 36b of the other partial area 5b beginning there and extends from the dividing line 25 to the outer edge 23 of the other partial area 5b parallel to the dividing line 25, this being geometrical Extension 35 of the groove section 36a leaves the groove section 36b at an angle and comes to coincide with a groove section 36b 'adjacent to the groove section 36b.
  • the geometric extension 40 of the groove sections 36b of the partial area 5b coincides with a groove section 36a of the partial area 5a starting at the dividing line 25 and extends the groove section 36a obliquely to an adjacent groove section 36a ', with which it extends on the outer edge 22 of the parallel to the dividing line Subarea 5a comes to cover.
  • the upper plate of the plate pair is thus supported with its lower wave vertices 17 of the wave pattern, which are drawn in full lines in FIG.
  • FIG. 10a at the ends 42 of this wave apex located at the outer longitudinal edges 22, 23 of the wave pattern and along the dividing line 25 located points 41 of this wave crest on the wave crests 18 facing this plate of the underlying plate of the plate pair, wherein these wave crests 18 of the underlying plate of the plate pair, which face the first-mentioned plate, are shown in broken lines in FIG. 10a.
  • the wave pattern of the modified plate 2 shown in FIG. 10c results from the 10b by rotating about a geometric axis lying in the plate plane and by pivoting about a geometric axis perpendicular to the plate plane by 180 °.
  • 10c can thus be produced with a tool which can be obtained by changing over a tool used for producing a plate according to FIG. 10b.
  • Stacking a plate according to FIG. 10b and a plate according to FIG. 10c results in a plate pair according to FIG. 10d.
  • 10b are supported at a plurality of points 43, which are distributed over the length of the groove sections, on the shaft apexes 18 of the plate underneath according to FIG. 10c.
  • this results in an increased flow resistance and a different thermal length.
  • the groove sections are parts of zig-zag grooves, the groove sections being approximately perpendicular to one another.
  • the groove sections 45, 46 of the groove trains 47 of the upper plate in FIG. 11a and the groove sections 45 ', 46' of the groove trains 47 'of the lower plate in FIG. 11a have two different lengths, which differ by the width of such a groove.
  • the groove sections 45, 46 of the upper plate of the exchanger plate pair in FIG. 11a overlap each other with one groove section of the other, that is to say lower in FIG.
  • the support is provided in that the lower wave crests 17 of the upper plate shown in full lines in FIG. 11 a are supported only on support points 52 on the wave crests 18 of the lower plates facing the upper plate in FIG. 11 a, which near the ends of the dividing lines 50 Groove sections of the partial areas 51 of the wave pattern lie.
  • the wave pattern of the modified plate 2 shown in FIG. 11c results from the wave pattern of the plate 1 according to FIG.
  • FIGS. 12a and 12b A similar type of support geometry as in the embodiment shown in FIGS. 11a and 11b is also present in the embodiment shown in FIGS. 12a and 12b, in which the groove sections form the flow plates in the case of both exchanger plates which form a flow path with one another in FIG. 12a
  • the support is carried out similarly to the embodiment according to FIGS. 11a and 11b at points 57 which are located at the ends of the groove sections 55 located at the dividing lines 50 of the partial areas 51 of the wave pattern.
  • FIGS. 13a and 13b A similar type of support is also given in the embodiment of FIGS. 13a and 13b, in which in the case of both exchanger plates which form a flow path, the groove sections 60 parts of Grooved trains 61, which run transversely to the flow direction 7, and there are the partial areas 62 of the wave pattern lying side by side, in the flow direction 7 surface strips with different widths; the groove trains 61 of the upper plate are offset from the groove trains of the lower plate of the plate pair to form mutual Ab einsstel len 63 in the flow direction 7 and transverse to the flow direction.
  • the support points 63 lie, similar to the embodiment arms according to FIGS. 11 a and 12 a, in the vicinity of the ends of the groove sections 60 located at the dividing lines 64.
  • the wave pattern of the modified plate 2 belonging to the embodiment according to FIGS. 12a and 12b shown in FIG. 12c results from the wave pattern of the plate 1 according to FIG. 12b by simply shifting in the flow direction 7.
  • Stacking a plate according to FIGS. 12b and a plate according to FIG. 12c results in a plate pair according to FIG. 12d. This has a higher flow resistance and a different thermal length than the plate pair according to FIG. 12a.
  • the wave crests 17 of the one plate rest not only on the ends 57 of the groove sections, but also at locations 58 in the middle of the groove sections on the shaft crests 18 of the other plate of the plate pair.
  • the wave pattern of the modified plate belonging to the embodiment according to FIGS. 13a and 13b and shown in FIG. 13c results from the wave pattern of the plate according to FIG. 13b by interchanging the two halves of the wave pattern successively in flow direction 7. Placing a plate according to FIG. 13b and a plate according to FIG. 13c on top of one another results in a plate pair according to FIG. 13d which, in comparison to a plate pair according to FIG. 13a, has a higher flow resistance and a different thermal length.
  • the wave crests 17 of the longer groove sections of one plate of this pair of plates lie at their ends 63 and at points 65 in the middle of their longitudinal extent on the wave crests 13 of this plate pair facing this plate.
  • the modified plates described above in connection with the individual embodiments and shown, for example, in FIGS. 8c to 13c can, just as is the case with the plate pairs according to FIGS. 6a to 13a, be stacked in pairs to form plate pairs with a low flow resistance, whereby one plate is rotated by 180 ° relative to the other plate of such a pair of plates about a geometric axis perpendicular to the plane of the plate.
  • a structure according to FIG. 3 or an exchanger with the same plates, which are rotated by 180 ° alternately, can be obtained.

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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)

Abstract

Echangeur de chaleur du type à plaques, possédant au moins trois plaques d'échanges de chaleur (1, 2) superposées, chaque paire de plaques successives (1, 2) formant un passage traversant (3, 4). Les plaques (1, 2) sont constituées de tôle et, afin de former entre elles des canaux traversants et d'assurer entre elles un support mutuel, comportent un motif ondulé embouti qui recouvre le passage traversant (3, 4), ledit motif formant des gorges (9, 10) s'étendant transversalement par rapport au sens (11) des ondulations et obliquement par rapport à l'axe médian (7) du passage traversant. La surface du motif ondulé (5) de chaque plaque est constituée d'un certain nombre de régions partielles (5a, 5c) mutuellement adjacentes, et les gorges (9, 10) forment, dans les régions partielles (5a, 5c) individuelles, des sections de gorge (12) s'étendant parallèlement les unes aux autres dans chaque groupe, lesdites sections se terminant aux limites (14) de ladite région partielle; les groupes des sections de gorge (12) des différentes régions partielles (5a, 5c) s'étendent transversalement les uns aux autres. Directement en face de chaque région partielle (5a, 5c) du motif ondulé (5) d'une plaque (1, 2) se trouve une région partielle (5a, 5c), de mêmes dimensions, du motif ondulé (5) d'une autre plaque (1, 2) qu forme avec la première plaque précitée (1, 2) un passage traversant (3, 4). Dans au moins une paire de plaques (1, 2) formant mutuellement un passage traversant (3, 4), les sommets (17) des ondes d'une plaque (1, 2) sont supportés, uniquement dans la région des extrémités (21) des sections de gorge (12) de cette plaque, sur les sommets (18) des ondes de l'autre plaque (1, 2) de la paire, et de la même manière dans la région des extrémités des sections de gorge (12) de ladite autre plaque (1, 2), et couvrent librement la distance séparant ces points de support (20). En particulier, les sommets des ondes (17) d'une plaque (1, 2) d'une paire de plaques formant mutuellement un passage traversant (3, 4) sont portées, par
EP19870905565 1986-08-29 1987-08-28 Echangeur de chaleur du type a plaques Expired - Lifetime EP0321480B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2344/86 1986-08-29
AT234486A AT388446B (de) 1986-08-29 1986-08-29 Plattenwaermeaustauscher

Publications (2)

Publication Number Publication Date
EP0321480A1 true EP0321480A1 (fr) 1989-06-28
EP0321480B1 EP0321480B1 (fr) 1990-11-07

Family

ID=3532601

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870905565 Expired - Lifetime EP0321480B1 (fr) 1986-08-29 1987-08-28 Echangeur de chaleur du type a plaques

Country Status (4)

Country Link
EP (1) EP0321480B1 (fr)
AT (1) AT388446B (fr)
IN (1) IN171633B (fr)
WO (1) WO1988001722A1 (fr)

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WO2023274375A1 (fr) * 2021-06-30 2023-01-05 浙江雪波蓝科技有限公司 Échangeur de chaleur et procédé de fabrication associé

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JP3100371B1 (ja) * 1999-04-28 2000-10-16 春男 上原 蒸発器
JP3139681B2 (ja) * 1999-05-31 2001-03-05 春男 上原 凝縮器
CN1833153B (zh) 2003-08-01 2012-04-04 贝洱两合公司 热交换器及其制造方法
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JP5733900B2 (ja) * 2010-02-26 2015-06-10 三菱電機株式会社 プレート式熱交換器の製造方法及びプレート式熱交換器
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Also Published As

Publication number Publication date
IN171633B (fr) 1992-11-28
WO1988001722A1 (fr) 1988-03-10
EP0321480B1 (fr) 1990-11-07
ATA234486A (de) 1988-11-15
AT388446B (de) 1989-06-26

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