EP2795233B1 - Tube pour évaporateur avec structure externe optimisée - Google Patents

Tube pour évaporateur avec structure externe optimisée Download PDF

Info

Publication number
EP2795233B1
EP2795233B1 EP12794195.3A EP12794195A EP2795233B1 EP 2795233 B1 EP2795233 B1 EP 2795233B1 EP 12794195 A EP12794195 A EP 12794195A EP 2795233 B1 EP2795233 B1 EP 2795233B1
Authority
EP
European Patent Office
Prior art keywords
tube
material projections
rib
ribs
lateral
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.)
Active
Application number
EP12794195.3A
Other languages
German (de)
English (en)
Other versions
EP2795233A1 (fr
Inventor
Ronald Lutz
Andreas Beutler
Andreas Schwitalla
Markus Revermann
Christian RETTICH
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.)
Wieland Werke AG
Original Assignee
Wieland Werke AG
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 Wieland Werke AG filed Critical Wieland Werke AG
Publication of EP2795233A1 publication Critical patent/EP2795233A1/fr
Application granted granted Critical
Publication of EP2795233B1 publication Critical patent/EP2795233B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
    • F28F13/185—Heat-exchange surfaces provided with microstructures or with porous coatings
    • F28F13/187—Heat-exchange surfaces provided with microstructures or with porous coatings especially adapted for evaporator surfaces or condenser surfaces, e.g. with nucleation sites
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0061—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications
    • F28D2021/0064—Vaporizers, e.g. evaporators

Definitions

  • the invention relates to a metallic heat exchanger tube for the evaporation of liquids from pure substances or mixtures on the pipe outside according to the preamble of claim 1.
  • Heat transfer occurs in many technical processes, for example in refrigeration and air conditioning technology or in chemical and energy engineering.
  • heat exchangers heat is transferred from one medium to another.
  • the media are usually separated by a wall. This wall serves as a heat transfer surface and for separating the media.
  • the temperature of the heat-emitting medium must be higher than the temperature of the heat-absorbing medium. This temperature difference is called the driving temperature difference.
  • the higher the driving temperature difference the more heat can be transferred per unit of heat transfer area.
  • the structuring of the heat transfer surface can improve heat transfer. This can be achieved that more heat can be transmitted per unit of heat transfer surface than a smooth surface. Furthermore, it is possible to reduce the driving temperature difference and thus make the process more efficient.
  • heat exchangers are tube bundle heat exchangers.
  • tubes are often used, which are structured both on their inside and on their outside.
  • Structured heat exchanger tubes for shell-and-tube heat exchangers usually have at least one structured region and smooth end pieces and possibly smooth intermediate pieces. The smooth end or intermediate pieces limit the structured areas. So that the tube can be easily installed in the shell and tube heat exchanger, the outer diameter of the structured areas must not be greater than the outer diameter of the smooth end and intermediate pieces.
  • the process of bubbling is intensified. It is known that the formation of bubbles begins at germinal sites. These germinal sites are usually small gas or steam inclusions. Such nucleation sites can already be produced by roughening the surface. When the growing bubble reaches a certain size, it detaches from the surface. If in the course of bladder detachment the germinal site is flooded by inflowing liquid, the gas or vapor inclusion can be displaced by liquid. In this case, the germinal site is inactivated. This can be avoided by a suitable design of the germinal sites. For this purpose, it is necessary that the opening of the nucleus is smaller than the cavity located below the opening.
  • Integrally rolled finned tubes are understood to mean finned tubes in which the fins are formed from the wall material of a smooth tube. The ribs are therefore monolithically connected to the pipe wall and can thus transfer heat optimally.
  • Such finned tubes have a round cross section over their entire length and the outer contour of the finned tube is coaxial with the tube axis.
  • Various methods are known with which the channels located between adjacent ribs are sealed in such a way that connections between channel and environment remain in the form of pores or slots. Since the opening of the pores or slots is smaller than the width of the channels, the channels are suitably shaped cavities that promote formation and stabilization of nucleation sites.
  • substantially closed channels are formed by bending or flipping the ribs (FIG. US 3,696,861 . US 5,054,548 . US 7,178,361 . US 7,254,964 ), by splitting and upsetting the ribs ( DE 27 58 526 A1 . US 4,577,381 ) and by notching and upsetting the ribs ( US 4,660,630 . EP 0 713 072 A2 . US 4,216,826 . US 5,697,430 . US 7,789,127 ) generated.
  • structures which are produced by bending over or splitting the ribs it is disadvantageous that even slight changes in the rib geometry caused by manufacturing tolerances or tool wear lead to a performance-reducing change in the pore structure.
  • the most powerful commercially available finned tube finned tubes have on the tube exterior a ribbed structure with a fin density of 55 to 60 fins per inch ( US 5,669,441 . US 5,697,430 . DE 197 57 526 C1 ). This corresponds to a rib pitch of about 0.45 to 0.40 mm.
  • a smaller rib division inevitably requires equally finer tools. Finer tools are however subjected to a higher risk of breakage and faster wear.
  • the currently available tools enable the safe production of finned tubes with rib densities of up to 60 ribs per inch.
  • the invention includes a metallic heat exchanger tube for the evaporation of liquids on the tube outside with a tube axis, with a tube wall and with on the tube outside circumferential, integrally molded ribs.
  • the ribs have a ribbed foot, rib flanks and a ribbed tip, the ribbed foot projecting substantially radially from the tube wall. Between two adjacent ribs in the axial direction is in each case a groove. On the rib flanks lateral material projections are arranged, which are formed from material of the ribs.
  • At least first, second and third lateral material projections are arranged such that the grooves are largely covered by the entirety of the material projections, wherein the first, second and third lateral material projections are formed on the tube wall in the radial direction each differently spaced levels.
  • the present invention relates to structured tubes for use in heat exchangers in which the heat-absorbing medium vaporizes.
  • evaporator tube bundle heat exchangers are often used in which liquids of pure substances or mixtures evaporate on the outside of the tube and thereby cool a brine or water on the inside of the tube.
  • the invention is based on the consideration that in evaporator tubes performance increases can be achieved by closing the grooves between the ribs by deformation of the ribs in a suitable manner, so that an undercut structure is formed.
  • bladder boiling there are small pockets of steam in the grooves at the bottom of the groove in the area of the rib foot. These steam inclusions are the germinal sites of the vapor bubbles.
  • the growing bubble reaches a certain size, it separates from the groove between the ribs and from the tube surface. If the germinal site is flooded with fluid in the course of bladder detachment, the germinal site is deactivated.
  • the structure on the pipe surface must therefore be designed so that when detaching the bubble a small bubble remains, which then serves as a germination point for a new cycle of blistering.
  • the size of the steam pockets depends on the properties of the substance to be vaporized, the pressure and the local temperature conditions, in particular the overtemperature of the tube wall with respect to the evaporation temperature. So that the steam inclusions can assume a sufficient size, it is advantageous to select the distance of the lateral material projections, which are formed closest to the pipe wall, greater than half the groove width, relative to the pipe wall.
  • the width W of the groove is measured between the rib flanks above the rib foot.
  • the lateral material projections may be continuous or discontinuous in the tube circumferential direction. Continuously formed lateral material projections change their cross section along the pipe circumferential direction only insignificantly. Discontinuous lateral material projections substantially change their cross section along the pipe circumferential direction; they can even be interrupted in some places. It is also possible to make one part of the lateral material projections continuous and another part of the lateral material projections discontinuous.
  • the grooves can be covered so far that in the radial direction of the groove bottom is visible on at most 4% of the pipe surface. This can be achieved by a suitable dimensioning of the ribs and the lateral material protrusions.
  • the material projections may be formed on both flanks of the groove. In particular, the width W of the grooves and the lateral extent of the material projections can be matched to one another.
  • the grooves may be covered so far that at least 2% of the pipe surface is visible in the radial direction of the groove bottom.
  • material protrusions may be formed on both flanks of the groove.
  • a very advantageous embodiment of the invention can be realized if the grooves are so far covered, for example, by material protrusions formed on both flanks of the groove, that the groove bottom is not visible in the radial direction of view.
  • the lateral material projections may be discontinuous in the pipe circumferential direction. As a result, discrete openings or pores are formed in the system of lateral material projections. The transport of liquid and vapor then takes place through these openings.
  • the lateral material projections may be formed discontinuously in the tube circumferential direction at least two levels and the lateral material projections of these levels to each other in the pipe circumferential direction at least partially offset. Due to the partially staggered arrangement of the material projections, a system of interrupted planes with passages is created. The cross-sectional areas of the passage openings are larger than visible in the radial direction of view. The resulting steam can thus leave the groove without much resistance. At the same time, liquid can not be taken directly from penetrate the environment in the groove base, since the groove bottom is largely covered by the material projections according to the invention. This effectively prevents the flooding of bladder nucleation sites and thus stabilizes the nucleation process. Thus, a structure is formed which brings the liquid supply and Dampfabtransport in a favorable manner into balance.
  • the grooves may be covered so far that in the radial direction of view of the groove bottom is visible only through openings with a maximum area of 0.007 mm 2 . Due to statistical variations in the manufacturing process, individual openings may be larger than 0.007 mm 2 . It will be understood by those skilled in the art that the mean area of the openings should not be greater than 0.007mm 2 , with the variation in aperture size preferably being chosen to be small enough not to adversely affect the performance of the structure. In the case of discontinuously formed, regularly recurring lateral material projections, the pitch and the extension of the material projections in the circumferential direction can be adapted in order to cover the groove base accordingly. The smaller the visible part of the groove bottom in the radial direction of view, the better the evaporation performance.
  • a further advantageous embodiment may be present if, at at least one level, the lateral extension of the material projections is so large that they overlap with the lateral material projections which are formed on the opposite rib edge on at least one other level in the axial direction and that the radial distance this material projections of the pipe wall is chosen so that in the overlap region narrow passages remain between the material projections.
  • the bladder germs are particularly effectively held in the groove.
  • the groove bottom is in many places in multiple ways covered.
  • the narrow passages in the overlap area ensure the exchange of liquid and vapor.
  • the ribs of an integrally rolled finned tube may be provided with notches extending from the fin tip towards the rib foot.
  • the depth of the notch is less than the height of the ribs.
  • material of the rib which has been radially displaced by the notches forms first lateral material projections which partially overlap the groove between two axially adjacent ribs at a first level.
  • second lateral material projections which partially overlap the groove at a second level.
  • the portions of the fin tip that are located between two circumferentially adjacent notches are axial so that the widened portions of the fin tip form third lateral material projections that partially overlap the groove at a third level.
  • the first material projections formed by notching the rib and the third material projections on the fin tip are discontinuously formed in the pipe circumferential direction. To each other, these two material projections are arranged offset.
  • the second lateral material protrusions may be formed by substantially radially displacing rib tip material. They may be discontinuous or nearly continuous.
  • the first, second and third lateral material protrusions are circumferentially arranged in a predetermined correlation with each other.
  • the lateral material protrusions are designed to be suitable if, viewed radially from the outside, the groove bottom is visible on less than 4% of the pipe surface. Ideally, the groove bottom is no longer visible from the outside.
  • the integrally rolled finned tube 1 according to FIGS. 1 to 11 has a pipe wall 2 and on the pipe outer side 21 one or more helically encircling ribs 3.
  • the ribs 3 usually run around like a multi-start thread.
  • the case that only a rib 3 rotates like a catchy thread makes no difference to the invention. Therefore, this case is included in the invention, even though the term 'ribs' is always used in the plural.
  • the ribs 3 are substantially radially from the tube wall 2 from.
  • the ribs 3 have a ribbed foot 31, rib flanks 32 and a ribbed tip 33.
  • the ribs 3 have a curved contour which can be described by means of a radius of curvature.
  • the rib foot 31 extends radially from the tube wall 2 to the point where the curved contour of the rib 3 merges into the rib flank 32.
  • the rib flank 32 extends from the rib foot 31 to the rib tip 33.
  • the rib height H is measured from the tube wall 2 to the rib tip 33. All ribs have the same height H.
  • the rib height H is typically 0.5 to 0.7 mm and thus depending on the pipe diameter between 2% and 5% of the pipe diameter.
  • the grooves 35 are at least twice as wide as the radius of curvature at the rib foot 31.
  • the width W of the groove 35 is measured between the rib flanks 32 above the rib foot 31.
  • Fig. 1 shows a sectional view of a fin tube 1 according to the invention along the tube axis.
  • first lateral material projections 41 On the left side of each rib 3 are located above the fin foot 31 first lateral material projections 41.
  • second lateral material projections 42 On the right side of each rib 3 are second lateral material projections 42 which are spaced from the tube wall 2 further than the first material projections 41.
  • the second material projections 42 are disposed below the rib tip 33 on the rib flank 32.
  • third lateral material projections 43 are third lateral material projections 43. Die The third material protrusions 43 are spaced further from the tube wall 2 than the second material protrusions 42.
  • the first material protrusions 41 and the second material protrusions 42 extend laterally over the groove 35 such that an axial overlap exists between the first 41 and second 42 material protrusions, respectively adjacent ribs 3 is formed. Since the first 41 and second 42 material projections are spaced differently far from the tube wall 2, a narrow passage 62 remains between the first 41 and second 42 material projections.
  • the second material projections 42 and the third material projections 43 laterally extend over the groove 35 such that a Overlap between the second 42 and the third 43 material projections each adjacent ribs 3 is formed in the axial direction. Since the second 42 and third 43 material projections are spaced differently far from the tube wall 2, remains between the two material projections 42 and 43, a narrow passage 66. The in Fig.
  • FIG. 1 shown material projections 41, 42 and 43 may be formed continuously or discontinuously in the tube circumferential direction. If they are continuously trained, the in Fig. 1 shown sectional view to find in each sectional plane in the tube circumferential direction in at most slightly changed form. In this case, the whole of the lateral material projections 41, 42 and 43, the grooves 35 between two axially adjacent ribs 3 completely covered, so that the groove bottom 36 is not visible from the outside.
  • Fig. 2 shows the outside view of an advantageous embodiment of a finned tube according to the invention 1.
  • the ribs 3 extend in the FIG. 2 in the vertical direction, the tube axis runs in a horizontal direction.
  • the ribs 3 are provided with notches 51 which extend from the rib tip 33 in the direction of rib foot.
  • the notches 51 preferably enclose with the ribs 3 an angle of approximately 45 °.
  • material of the rib 3 forms first lateral material projections 41, which form the groove 35 partially overlap between two adjacent ribs 3 in the axial direction.
  • Between the fin tip 33 and the level of the notches 51 are second lateral material projections 42 which partially overlap the groove 35.
  • the portions 54 of the rib tip 33 which are located between two circumferentially adjacent notches 51, are spread unilaterally in the axial direction, so that the expanded portions 54 of the rib tip 33 form third lateral material projections 43 which partially overlap the groove.
  • the first lateral material protrusions 41 formed by the notches of the rib 3 and the third lateral material protrusions 43 on the rib tip 33 are discontinuously formed in the tube circumferential direction. To each other, these material projections 41 and 43 are arranged offset.
  • the second lateral material protrusions 42 may be formed by substantially radially displacing material of the rib tip 33. If, as in Fig.
  • first 41, second 42 and third 43 lateral material projections are arranged in the circumferential direction in a predetermined correlation to each other.
  • material protrusions 53 are formed on the flanks of the notch 51. These material projections 53 connect the first lateral material projections 41 with the second 42 and third 43 lateral material projections. Due to the totality of all lateral material projections 41, 42 and 43 as well as the material projections 53 on the flanks of the notches 51, the grooves between two adjacent ribs 3 in the axial direction are largely covered.
  • the groove bottom 36 is visible in the radial direction of view from the outside only a few places.
  • Fig. 3 shows a sectional view of the in Fig. 2 illustrated finned tube 1 in the sectional plane AA.
  • first lateral material projections 41 which through the notches of Rib 3 were formed.
  • second lateral material projections 42 which are spaced further from the tube wall 2 than the first material projections 41.
  • the second material projections 42 are arranged below the rib tip 33 on the rib flank 32.
  • the first material projections 41 and the second material projections 42 extend laterally over the groove 35 such that an overlap in the axial direction between the first 41 and the second 42 material projections of adjacent ribs 3 is formed.
  • Fig. 4 shows a sectional view of the in Fig. 2 represented finned tube 1 in the sectional plane BB.
  • the cutting plane is chosen so that it lies approximately centrally in a notch 51.
  • the displaced by the notches of the ribs 3 material on the flanks 52 of the notches 51 forms in the sectional plane BB material projections 53 which are arranged on both sides of the rib 3 Y-like.
  • the material projections 53 connect the level of the notches 51 with the level of the second lateral material projections 42.
  • the material projections 53 on the flanks 52 of the notches 51 extend over the groove 35 in such a way that, together with the second lateral material projections 42, an overlap in the axial direction between the material projections 53 adjacent ribs 3 is formed. Therefore, in the sectional plane BB of the groove base 36 is not visible from the outside in the radial direction of view.
  • Fig. 5 shows a sectional view of the in Fig. 2 illustrated finned tube 1 in the sectional plane CC.
  • the second lateral material projections 42 are visible on the left side of each rib 3.
  • Third lateral ones are located on the rib tip 33 on the left side of each rib 3 Material projections 43, which were formed by widening the rib tip 33.
  • the third lateral material protrusions 43 are spaced further from the tube wall 2 than the second material protrusions 42.
  • the second material protrusions 42 and the third material protrusions 43 extend laterally over the groove 35 so as to axially overlap between the second 42 and third 43 material protrusions each adjacent ribs 3 is formed.
  • Fig. 6 shows a sectional view of the in Fig. 2 illustrated finned tube 1 in the sectional plane DD.
  • second lateral material projections 42 On the right side of each rib 3 are already in the Figures 3 and 5 apparent, second lateral material projections 42.
  • third lateral material projections 43 On the left side of each rib 3 are located at the rib tip 33 already in FIG. 5 apparent, third lateral material projections 43, which were formed by widening the rib tip 33.
  • the third lateral material projections 43 are spaced further from the tube wall 2 than the second material projections 42.
  • the second lateral material projections 42 In contrast to the sectional plane CC, the second lateral material projections 42 extend less far beyond the groove 35 in the sectional plane DD, so that no overlap in the axial direction between the second 42 and the third 43 material projections each adjacent ribs 3 is formed.
  • the groove base 36 is visible from the outside in the radial direction of view. Due to the totality of all lateral material projections 41, 42 and 43 as well as the material projections 53 on the flanks of the notches 51, the grooves 35 are largely covered between two axially adjacent ribs 3, so that in the in Fig. 2 to 6 illustrated embodiment of a finned tube according to the invention the groove bottom 36 is visible from the outside only in a few places.
  • Fig. 7 shows the outside view of an advantageous embodiment of a finned tube according to the invention 1.
  • the ribs 3 extend in the FIG. 7 in the vertical direction, the tube axis runs in a horizontal direction.
  • the ribs 3 are provided with notches 51 which extend from the rib tip 33 in the direction of rib foot.
  • the notches 51 preferably enclose an angle of about 45 ° with the ribs.
  • material of the rib 3 forms first lateral material projections 41, which partially cover the groove between two axially adjacent ribs 3.
  • Between the rib tip 33 and the level of the notches 51 are second lateral material projections 42 which partially overlap the groove.
  • the portions 54 of the rib tip 33 which are located between two circumferentially adjacent notches 51, are spread unilaterally in the axial direction, so that the expanded portions 54 of the rib tip 33 form third lateral material projections 43 which partially overlap the groove.
  • the first lateral material protrusions 41 formed by the notches of the rib 3 and the third lateral material protrusions 43 on the rib tip 33 are discontinuously formed in the tube circumferential direction. To each other, these material projections 41 and 43 are arranged offset.
  • the second lateral material projections 42 may be formed by radially displacing the rib tip 33. By simultaneous, appropriate displacement of the material of the rib tip 33 in the circumferential direction, they can then be formed continuously or almost continuously in the tube circumferential direction.
  • the first 41, second 42 and third 43 lateral material projections are arranged in the circumferential direction in a predetermined correlation to each other. Further, 3 material protrusions 53 are formed on the flanks of the notch 51 by the notches of the rib. These material projections 53 connect the first lateral material projections 41 with the second 42 and third 43 lateral material projections. Through the entirety of all lateral material projections 41, 42 and 43 and the material projections 53 on the flanks of the notches 51, the grooves between two in the axial direction completely overlapping adjacent ribs 3. At the in FIG. 7 illustrated embodiment, the groove bottom is therefore not visible from the outside in the radial direction of view.
  • Fig. 8 shows a sectional view of the in Fig. 7 illustrated finned tube 1 in the sectional plane AA.
  • first lateral material projections 41 which were formed by the notches of the rib 3.
  • second lateral material projections 42 which are spaced further from the tube wall 2 than the first material projections 41.
  • the second material projections 42 are arranged below the rib tip 33 on the rib flank 32.
  • the first material projections 41 and the second material projections 42 extend laterally over the groove 35 such that an overlap in the axial direction between the first 41 and the second 42 material projections of adjacent ribs 3 is formed.
  • Fig. 9 shows a sectional view of the in Fig. 7 represented finned tube 1 in the sectional plane BB.
  • the cutting plane is chosen so that it lies approximately centrally in a notch 51.
  • the displaced by the notches of the ribs 3 material on the flanks 52 of the notches 51 forms in the sectional plane BB material projections 53 which are arranged on both sides of the rib 3 Y-like.
  • the material projections 53 connect the level of the notches 51 with the level of the second lateral material projections 42.
  • the material projections 53 on the flanks 52 of the notches 51 extend over the groove 35 such that, together with the second lateral material projections 42, an overlap in the axial direction between the material projections 53rd adjacent ribs 3 is formed. Therefore, in the sectional plane BB of the groove base 36 is not visible from the outside in the radial direction of view.
  • Fig. 10 shows a sectional view of the in Fig. 7 illustrated finned tube 1 in the sectional plane CC.
  • On the right side of each rib 3 are already in FIG. 8
  • On the left side of each rib 3 are at the rib tip 33 third lateral material projections 43, which were formed by widening the rib tip 33.
  • the third lateral material protrusions 43 are spaced further from the tube wall 2 than the second material protrusions 42.
  • the second material protrusions 42 and the third material protrusions 43 extend laterally over the groove 35 so as to axially overlap between the second 42 and third 43 material protrusions each adjacent ribs 3 is formed. Therefore, in the sectional plane CC of the groove base 36 is not visible in the radial direction from the outside. Since the second 42 and third 43 material projections are spaced differently far from the pipe wall 2, remains between the two material projections 42 and 43, a narrow passage 66th
  • Fig. 11 shows a sectional view of the in Fig. 7 illustrated finned tube 1 in the sectional plane DD.
  • second lateral material projections 42 On the right side of each rib 3 are already in the FIGS. 8 and 10 apparent, second lateral material projections 42.
  • third lateral material projections 43 On the left side of each rib 3 are located at the rib tip 33 already in FIG. 10 apparent, third lateral material projections 43, which were formed by widening the rib tip 33.
  • the third lateral material protrusions 43 are spaced further from the tube wall 2 than the second material protrusions 42.
  • FIG. 6 illustrated embodiment extend in the in FIG.
  • the second material projections 42 and the third material projections 43 laterally via the groove 35, that an overlap in the axial direction between the second 42 and the third 43 material projections each adjacent ribs 3 is formed. Therefore, in the sectional plane DD of the groove base 36 is not visible from the outside in the radial direction of view.
  • the grooves 35 are completely covered between two axially adjacent ribs 3, so that in the in Fig. 7 to 11 illustrated embodiment of a finned tube according to the invention the groove base 36 is not visible from the outside.
  • the lateral material protrusions closest to the tube wall at a level which is 40% to 50% of the fin height H spaced from the tube wall.
  • the most distant from the tube wall lateral material projections are preferably located at the level of the rib tip. So they are formed by a lateral broadening of the rib tip.
  • there are further lateral material projections between these two levels which are arranged at a level which is spaced from the tube wall by 50% to 80%, preferably 60% to 70% of the rib height H.
  • the radial distance between each two adjacent levels should be 15% to 30%, preferably 20% to 25% of the rib height H.
  • the lateral extension of the material projections is preferably 35% to 75% of the width W of the groove.
  • the lateral extent together is more than 100% of the groove width W. This ensures that these material projections overlap in the axial direction and at the same time remain in the overlap area narrow passages.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (9)

  1. Tube d'échangeur de chaleur métallique (1) pour l'évaporation de liquides sur le côté extérieur de tube (21), comprenant un axe de tube, une paroi de tube (2) et des nervures (3) en révolution sur le côté extérieur de tube (21) et formées d'un seul tenant ou intégralement avec le tube, les nervures possédant un pied de nervure (31), des flancs de nervure (32) et un sommet de nervure (33), tube
    dans lequel le pied de nervure (31) fait saillie sensiblement de manière radiale de la paroi de tube (2), et une rainure (35) se trouve respectivement située entre deux nervures (3) voisines dans la direction axiale,
    dans lequel sur les flancs de nervure (32) sont agencées des proéminences latérales de matière, qui sont réalisées à partir du matériau des nervures (3), et
    dans lequel des premières (41), deuxièmes (42) et troisièmes proéminences latérales de matière (43) sont agencées de manière telle, que les rainures (35) soient dans une large mesure recouvertes par l'ensemble des proéminences latérales de matière (41, 42, 43), caractérisé en ce que les premières (41), deuxièmes (42) et troisièmes proéminences latérales de matière (43) sont formées à hauteur de niveaux respectivement situés à des distances différentes de la paroi de tube (2) dans la direction radiale.
  2. Tube d'échangeur de chaleur (1) selon la revendication 1, caractérisé en ce que les rainures (35) sont recouvertes de façon telle, que, pour une direction d'observation radiale, le fond de rainure (36) ne soit visible qu'au maximum sur 4% de la surface extérieure du tube.
  3. Tube d'échangeur de chaleur (1) selon la revendication 2, caractérisé en ce que les rainures (35) sont recouvertes de façon telle, que, pour une direction d'observation radiale, le fond de rainure (36) ne soit visible qu'au maximum sur 2% de la surface extérieure du tube.
  4. Tube d'échangeur de chaleur (1) selon la revendication 3, caractérisé en ce que les rainures (35) sont recouvertes de façon telle, que, pour une direction d'observation radiale, le fond de rainure (36) ne soit pas visible.
  5. Tube d'échangeur de chaleur (1) selon l'une des revendications 1 à 4, caractérisé en ce que sur au moins un niveau, les proéminences latérales de matière (41, 42, 43) sont d'une configuration discontinue dans la direction périphérique du tube.
  6. Tube d'échangeur de chaleur (1) selon la revendication 5, caractérisé en ce que sur au moins deux niveaux, les proéminences latérales de matière (41, 42, 43) sont d'une configuration discontinue dans la direction périphérique du tube, et les proéminences latérales de matière (41, 42, 43) de ces niveaux sont agencées de manière au moins partiellement décalée dans la direction périphérique du tube.
  7. Tube d'échangeur de chaleur (1) selon l'une des revendications 5 ou 6, caractérisé en ce que les rainures (35) sont recouvertes de façon telle, que, pour une direction d'observation radiale, le fond de rainure (36) ne soit visible qu'au travers d'ouvertures d'une surface d'au maximum 0,007 mm2.
  8. Tube d'échangeur de chaleur (1) selon l'une des revendications 1 à 7, caractérisé en ce que sur au moins un niveau, l'étendue latérale des proéminences de matière (41, 42, 43) est d'une grandeur telle, que celles-ci chevauchent, dans la direction axiale, les proéminences latérales de matière (41, 42, 43), qui sont formées sur le flanc de nervure opposé (32) à hauteur d'au moins un autre niveau, et en ce que la distance radiale de ces proéminences de matière (41, 42, 43) à la paroi de tube (2) est choisie de manière à conserver dans la zone de chevauchement, des passages étroits entre les proéminences de matière (41, 42, 43).
  9. Tube d'échangeur de chaleur (1) selon l'une des revendications 1 à 8,
    dans lequel les nervures (3) sont pourvues d'entailles (51) qui s'étendent du sommet de rainure (33) en direction du pied de rainure (31), et dans lequel la profondeur de l'entaille est inférieure à la hauteur (H) des nervures (3),
    au niveau des entailles (51) du matériau de la nervure (3) forme des premières proéminences latérales de matière (41), qui recouvrent partiellement, à hauteur d'un premier niveau, la rainure (35) entre deux nervures (3) voisines dans la direction axiale,
    entre le sommet de nervure (33) et le niveau des entailles (51), se trouvent des deuxièmes proéminences latérales de matière (42), qui recouvrent partiellement,
    à hauteur d'un deuxième niveau, la rainure (35) entre deux nervures (3) voisines dans la direction axiale,
    et les zones (54) du sommet de nervure (33), qui se trouvent entre deux entailles (51) voisines dans la direction périphérique du tube, sont élargies dans la direction axiale, de sorte que les zones (54) élargies du sommet de nervure (33) forment des troisièmes proéminences latérales de matière (43), qui recouvrent partiellement, à hauteur d'un troisième niveau, la rainure (35) entre deux nervures (3) voisines dans la direction axiale,
    caractérisé en ce que l'ensemble des proéminences de matière (41, 42, 43) recouvrent dans une large mesure les rainures (35) entre deux nervures (3) voisines dans la direction axiale.
EP12794195.3A 2011-12-21 2012-11-21 Tube pour évaporateur avec structure externe optimisée Active EP2795233B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011121733A DE102011121733A1 (de) 2011-12-21 2011-12-21 Verdampferrohr mit optimierter Außenstruktur
PCT/EP2012/004811 WO2013091759A1 (fr) 2011-12-21 2012-11-21 Tube d'évaporation à structure extérieure optimisée

Publications (2)

Publication Number Publication Date
EP2795233A1 EP2795233A1 (fr) 2014-10-29
EP2795233B1 true EP2795233B1 (fr) 2016-04-06

Family

ID=47263238

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12794195.3A Active EP2795233B1 (fr) 2011-12-21 2012-11-21 Tube pour évaporateur avec structure externe optimisée

Country Status (9)

Country Link
US (2) US9618279B2 (fr)
EP (1) EP2795233B1 (fr)
JP (1) JP5766366B2 (fr)
DE (1) DE102011121733A1 (fr)
MX (1) MX355056B (fr)
PL (1) PL2795233T3 (fr)
PT (1) PT2795233T (fr)
TW (1) TWI583912B (fr)
WO (1) WO2013091759A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011121436A1 (de) * 2011-12-16 2013-06-20 Wieland-Werke Ag Verflüssigerrohre mit zusätzlicher Flankenstruktur
US20150211807A1 (en) * 2014-01-29 2015-07-30 Trane International Inc. Heat Exchanger with Fluted Fin
DE102014002829A1 (de) * 2014-02-27 2015-08-27 Wieland-Werke Ag Metallisches Wärmeaustauscherrohr
CN105757923B (zh) * 2016-03-20 2019-01-08 孙伯康 环保节能吸热器
DE102016006967B4 (de) * 2016-06-01 2018-12-13 Wieland-Werke Ag Wärmeübertragerrohr
DE102016006914B4 (de) * 2016-06-01 2019-01-24 Wieland-Werke Ag Wärmeübertragerrohr
US9945618B1 (en) * 2017-01-04 2018-04-17 Wieland Copper Products, Llc Heat transfer surface
CN111503945B (zh) * 2020-05-14 2021-05-25 珠海格力电器股份有限公司 蒸发器及其蒸发管
US20220146214A1 (en) * 2020-11-09 2022-05-12 Carrier Corporation Heat Transfer Tube

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696861A (en) 1970-05-18 1972-10-10 Trane Co Heat transfer surface having a high boiling heat transfer coefficient
GB1292767A (en) * 1971-05-20 1972-10-11 Grund Aebi S N C Dei Geometra A combined space-heating radiator and convection air heater
JPS5325379B2 (fr) * 1974-10-21 1978-07-26
JPS5289854A (en) * 1976-01-23 1977-07-28 Ishikawajima Harima Heavy Ind Co Ltd Forming method for wall face of heat conduction tube
DE2808080C2 (de) 1977-02-25 1982-12-30 Furukawa Metals Co., Ltd., Tokyo Wärmeübertragungs-Rohr für Siedewärmetauscher und Verfahren zu seiner Herstellung
DE2758526C2 (de) 1977-12-28 1986-03-06 Wieland-Werke Ag, 7900 Ulm Verfahren und Vorrichtung zur Herstellung eines Rippenrohres
US4179911A (en) 1977-08-09 1979-12-25 Wieland-Werke Aktiengesellschaft Y and T-finned tubes and methods and apparatus for their making
US4438807A (en) * 1981-07-02 1984-03-27 Carrier Corporation High performance heat transfer tube
JPS5946490A (ja) * 1982-09-08 1984-03-15 Kobe Steel Ltd 沸騰型熱交換器用伝熱管
US4577381A (en) 1983-04-01 1986-03-25 Kabushiki Kaisha Kobe Seiko Sho Boiling heat transfer pipes
JPS6064194A (ja) * 1983-09-19 1985-04-12 Sumitomo Light Metal Ind Ltd 伝熱管
JPS60238698A (ja) * 1984-05-11 1985-11-27 Hitachi Ltd 熱交換壁
US4660630A (en) 1985-06-12 1987-04-28 Wolverine Tube, Inc. Heat transfer tube having internal ridges, and method of making same
US5054548A (en) 1990-10-24 1991-10-08 Carrier Corporation High performance heat transfer surface for high pressure refrigerants
JP2788793B2 (ja) * 1991-01-14 1998-08-20 古河電気工業株式会社 伝熱管
KR0134557B1 (ko) * 1993-07-07 1998-04-28 가메다카 소키치 유하액막식 증발기용 전열관
DE69525594T2 (de) 1994-11-17 2002-08-22 Carrier Corp Wärmeaustauschrohr
US5697430A (en) 1995-04-04 1997-12-16 Wolverine Tube, Inc. Heat transfer tubes and methods of fabrication thereof
DE19757526C1 (de) 1997-12-23 1999-04-29 Wieland Werke Ag Verfahren zur Herstellung eines Wärmeaustauschrohres, insbesondere zur Verdampfung von Flüssigkeiten aus Reinstoffen oder Gemischen auf der Rohraußenseite
DE10024682C2 (de) * 2000-05-18 2003-02-20 Wieland Werke Ag Wärmeaustauscherrohr zur Verdampfung mit unterschiedlichen Porengrößen
DE10101589C1 (de) 2001-01-16 2002-08-08 Wieland Werke Ag Wärmeaustauscherrohr und Verfahren zu dessen Herstellung
US20040010913A1 (en) * 2002-04-19 2004-01-22 Petur Thors Heat transfer tubes, including methods of fabrication and use thereof
JP2005121238A (ja) * 2003-10-14 2005-05-12 Hitachi Cable Ltd 沸騰用伝熱管
US7254964B2 (en) 2004-10-12 2007-08-14 Wolverine Tube, Inc. Heat transfer tubes, including methods of fabrication and use thereof
CN100365369C (zh) 2005-08-09 2008-01-30 江苏萃隆铜业有限公司 蒸发器热交换管
CN100437011C (zh) * 2005-12-13 2008-11-26 金龙精密铜管集团股份有限公司 一种电制冷机组用满液式铜蒸发换热管
CN100458344C (zh) * 2005-12-13 2009-02-04 金龙精密铜管集团股份有限公司 一种电制冷满液式机组用铜冷凝换热管
CN100498187C (zh) 2007-01-15 2009-06-10 高克联管件(上海)有限公司 一种蒸发冷凝兼备型传热管
US20090071624A1 (en) * 2007-09-18 2009-03-19 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Heat sink
JP2011127784A (ja) * 2009-12-15 2011-06-30 Hitachi Cable Ltd 沸騰用伝熱管及びその製造方法

Also Published As

Publication number Publication date
PL2795233T3 (pl) 2016-10-31
DE102011121733A1 (de) 2013-06-27
EP2795233A1 (fr) 2014-10-29
TW201341747A (zh) 2013-10-16
US9909819B2 (en) 2018-03-06
US20140352939A1 (en) 2014-12-04
US20170146301A1 (en) 2017-05-25
MX2014006741A (es) 2014-10-15
MX355056B (es) 2018-04-03
JP2015500456A (ja) 2015-01-05
PT2795233T (pt) 2016-07-13
JP5766366B2 (ja) 2015-08-19
TWI583912B (zh) 2017-05-21
WO2013091759A1 (fr) 2013-06-27
US9618279B2 (en) 2017-04-11

Similar Documents

Publication Publication Date Title
EP2795233B1 (fr) Tube pour évaporateur avec structure externe optimisée
EP1223400B1 (fr) Tube d'échangeur de chaleur et son procédé de fabrication
DE4404357C1 (de) Wärmeaustauschrohr zum Kondensieren von Dampf
DE69401731T2 (de) Wärmetauscherrohr
DE102009007446B4 (de) Wärmeübertragerrohr und Verfahren zu dessen Herstellung
EP2101136B1 (fr) Tube d'échangeur de chaleur métallique
EP2253922B1 (fr) Tuyau d'échange thermique métallique
DE102005004284A1 (de) Wärmetauscher, insbesondere Flachrohr-Verdampfer für eine Kraftfahrzeug-Klimaanlage
DE102015104180B4 (de) Vorrichtung für einen Wärmeübertrager zum Sammeln und Verteilen eines Wärmeträgerfluids
EP3111153B1 (fr) Tube d'échangeur de chaleur métallique
WO2004065882A1 (fr) Echangeur thermique, notamment refroidisseur de gaz
EP3465057B1 (fr) Tube d'échangeur de chaleur
EP2791609B1 (fr) Tuyaus pour condenseur avec structure de flanc complémentaire
EP3465056B1 (fr) Tube échangeur de chaleur
EP3465055B1 (fr) Tube d'échangeur de chaleur
EP3581871B1 (fr) Tuyau d'échange thermique métallique
WO2022089773A1 (fr) Tube métallique d'échangeur de chaleur
WO2022089772A1 (fr) Tube métallique d'échangeur de chaleur
DE202020005628U1 (de) Metallisches Wärmeaustauscherrohr
DE202020005625U1 (de) Metallisches Wärmeaustauscherrohr

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140606

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: REVERMANN, MARKUS

Inventor name: SCHWITALLA, ANDREAS

Inventor name: RETTICH, CHRISTIAN

Inventor name: BEUTLER, ANDREAS

Inventor name: LUTZ, RONALD

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20151106

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 788289

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160415

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502012006648

Country of ref document: DE

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Ref document number: 2795233

Country of ref document: PT

Date of ref document: 20160713

Kind code of ref document: T

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20160704

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

Ref country code: NL

Ref legal event code: MP

Effective date: 20160406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160706

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160806

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160707

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502012006648

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161130

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

26N No opposition filed

Effective date: 20170110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20161121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161130

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161130

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161130

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161121

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161121

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20170912

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20171120

Year of fee payment: 6

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20161130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20121121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 788289

Country of ref document: AT

Kind code of ref document: T

Effective date: 20171121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181121

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230929

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20231121

Year of fee payment: 12

Ref country code: IT

Payment date: 20231010

Year of fee payment: 12

Ref country code: DE

Payment date: 20231130

Year of fee payment: 12