EP3746728A1 - Isolierende oberflächenbeschichtung an wärmeübertragern zur verminderung von thermischen spannungen - Google Patents
Isolierende oberflächenbeschichtung an wärmeübertragern zur verminderung von thermischen spannungenInfo
- Publication number
- EP3746728A1 EP3746728A1 EP19701151.3A EP19701151A EP3746728A1 EP 3746728 A1 EP3746728 A1 EP 3746728A1 EP 19701151 A EP19701151 A EP 19701151A EP 3746728 A1 EP3746728 A1 EP 3746728A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat
- heat exchange
- heat exchanger
- fluid
- coating
- 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
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 57
- 239000011248 coating agent Substances 0.000 title claims abstract description 54
- 230000008646 thermal stress Effects 0.000 title description 7
- 239000012530 fluid Substances 0.000 claims abstract description 74
- 238000005192 partition Methods 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000011810 insulating material Substances 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 229920000642 polymer Polymers 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 22
- 238000012546 transfer Methods 0.000 claims description 10
- 230000009969 flowable effect Effects 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000007704 transition Effects 0.000 description 3
- 238000005219 brazing Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 241001300587 Finella Species 0.000 description 1
- 241000446313 Lamella Species 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- 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
- F28D9/0062—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 spaced plates with inserted elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/089—Coatings, claddings or bonding layers made from metals or metal alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
- F25J3/04945—Details of internal structure; insulation and housing of the cold box
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J5/00—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants
- F25J5/002—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger
-
- 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
- F28D9/0062—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 spaced plates with inserted elements
- F28D9/0068—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 spaced plates with inserted elements with means for changing flow direction of one heat exchange medium, e.g. using deflecting zones
-
- 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
-
- 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
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
-
- 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
- F28D2021/0033—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cryogenic applications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2245/00—Coatings; Surface treatments
- F28F2245/06—Coatings; Surface treatments having particular radiating, reflecting or absorbing features, e.g. for improving heat transfer by radiation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2270/00—Thermal insulation; Thermal decoupling
Definitions
- the invention relates to a plate heat exchanger and a method for
- Plate heat exchangers are known from the prior art, which are adapted to transfer the heat from a first fluid indirectly to another, second fluid.
- the fluids in the plate heat exchanger are guided in separate heat exchange passages of the plate heat exchanger block. These are delimited by two parallel partitions of the plate heat exchanger block, between each of which a heating surface element is arranged, which is also referred to as a fin or lamella.
- Such plate heat exchangers are e.g. shown and described in "The Standards of the brazed aluminum plate-fin heat exchanger manufacturers association" ALPEMA, Third Edition, 2010.
- Partitions or sheets and fins on the one hand form the heating surface and on the other hand have to absorb the forces from the internal overpressure.
- various partitions and Fintypen are available, but the
- the process streams are now started again, they hit the heat exchanger with a very large temperature difference.
- the wall temperature in particular in the area of the current inlets, changes rapidly over time, and that locally very steep wall temperature gradients develop along the main flow direction.
- the temporal and local temperature gradients cause the mentioned thermal stresses.
- the thermal stresses can be significant.
- the present invention seeks to provide a plate heat exchanger, which is improved in view of the aforementioned problem.
- a plate heat exchanger with a plate heat exchanger block which has a plurality of mutually parallel partitions (eg in the form of dividing plates), which form a plurality of heat exchange passages for each other to be brought in indirect heat transfer fluids, wherein the heat exchange passages provided by, in particular flush on the edge of the partitions, sidebars (eg in shape sheet metal strip), which are also referred to as sidebars, are limited, in particular outwardly closed, and between, in particular two, adjacent partitions at least one heat-conducting element (which is also referred to as fin) is arranged, and wherein the heat exchange passages , in particular each heat exchange passage, an inlet for introducing a fluid and an outlet for discharging the fluid.
- sidebars eg in shape sheet metal strip
- one or more partitions and / or one or more heat-conducting elements and / or one or more side strips each have a coating of a heat-insulating material, which is applied to the respective partition, the respective heat-conducting element or the respective sidebar.
- the two outermost partitions of the plate heat exchanger block, which limit the plate heat exchanger block to the outside, are also called
- Cover walls designated and are formed in particular by cover plates.
- the respective heat exchange passage is therefore bounded by two adjacent partitions and has at least one heat-conducting element (Fin) arranged between these partitions.
- the respective thermally conductive element forms with the two adjacent partitions a plurality of flow channels of the respective heat exchange passage, wherein the coating is applied to the respective thermally conductive element and the two adjacent partition plates, that the respective flow channel has a circumferential inner side, the coated with the heat-insulating coating.
- the coating is applied in such a way that the respective flow channel in a first section has a gap-free coating, ie continuous coating, on its inner wall.
- thermally conductive element alternately and preferably parallel to each other
- mountains and valleys are connected to each other in particular vertically extending webs.
- the alternately arranged mountains and valleys together with the webs form a corrugated structure of the respective heat-conducting element.
- a plurality of flow channels are formed in a respective heat exchange passage.
- the respective flow channels are thus limited by the partitions, the mountains or the valleys and the webs of the respective thermally conductive element.
- Such plate heat exchangers or the uncoated components of the plate heat exchanger are preferably formed from an aluminum alloy, wherein the components are preferably interconnected by brazing.
- heating surface elements In the manufacture of a plate heat exchanger, heating surface elements,
- Dividers, cover plates and sidebars which are partially provided with solder, preferably stacked in a block-shaped block and then soldered in a vacuum soldering oven to a heat exchanger block.
- the heat-conducting elements which are optionally coated as described above, may in particular also be so-called distributor fins which distribute the fluid flow over the entire width of the respective heat exchange passage, i.e. from sidebar to sidebar.
- Such distributor fins may also be integrally formed with a downstream heat conducting element / fin.
- the respective partition wall having the coating and / or the respective heat-conducting element having the coating to each have a first section arranged at the respective inlet (which adjoins, for example, the inlet or adjacent to the inlet and a second portion connected to the first portion, which is farther from the inlet, than the first portion, wherein only the first portion has the coating, and wherein in each case the second portion does not have the coating, ie in other So words no heat-insulating coating has.
- the first section is arranged such that it is flowed through by the fluid before the fluid flows through the second section.
- the flow channels formed by the partitions and heat-conducting elements thus have a first (closer to the inlet) and a second section (located closer to the outlet) portion, wherein each only an inner side or inner wall of the first portion of the respective
- the plate heat exchanger block at least first heat exchange passages to
- first heat exchange passages associated surfaces of the partition walls and / or sidebars and / or the first heat exchange passages associated heat-conducting elements at least partially each have a coating of the heat-insulating material, namely in particular, only the first sections of these partitions and / or heat-conducting elements, and / or side rails and wherein the second heat exchange passages associated surfaces of the partition walls and / or the side rails and / or the second heat exchange passages associated heat-conducting elements have no coating of the heat-insulating material.
- Heat exchange passages on a heat-insulating coating and in particular only the inner sides or inner surfaces of the first portions of the
- Heat exchange passages in particular do not have the heat-insulating coating.
- the heat-insulating material is one of the following materials or has one of the following materials: a plastic, a polymer, a ceramic.
- the partitions and / or the heat-conducting elements and / or the side strips (apart from the coating) are formed from one of the following materials or have one of the following materials: aluminum, an aluminum alloy.
- alloys e.g. SB-209 (ASME), SB-221 (ASME) or EN-AW-3003 (EN).
- the heat-insulating material has a thermal conductivity or a heat conduction coefficient which is less than 5 W / mK, in particular less than 1 W / mK.
- the base material of the respective door wall or of the respective heat-conducting element or the respective uncoated partition wall or the respective uncoated heat-conducting element typically has a heat conduction coefficient (eg 70K) in the range of approximately 130 W / mk (at 70K ) up to approx. 150 W / mk (at 300K).
- a heat conduction coefficient eg 70K
- the base material of the respective door wall or of the respective heat-conducting element or the respective uncoated partition wall or the respective uncoated heat-conducting element typically has a heat conduction coefficient (eg 70K) in the range of approximately 130 W / mk (at 70K ) up to approx. 150 W / mk (at 300K).
- the respective coating has a thickness (in particular normal to the plane of extent or surface of the respective partition wall or of the respective heat-conducting element) which is less than or equal to 0.2 mm.
- the respective, uncoated dividing wall (in particular, normal to the plane of extent of the surface of the respective dividing wall) to have a thickness in the range from 1 mm to 2 mm.
- the respective, uncoated thermally conductive element (in particular normal to
- Plane of extension of the surface of the respective base body has a thickness in
- the at least one, first one is above the inlet
- Heat exchange passage and over the inlet of the at least one, second heat exchange passage depending mounted a collector with a nozzle, wherein the nozzles are used for connecting feed pipes.
- Such collectors may e.g. be formed as a half-cylinder, which are closed at the two opposite end faces.
- Such a collector further preferably has a peripheral edge over which the collector is welded to the plate heat exchanger block.
- the partitions and fins preferably run perpendicular to a longitudinal axis of the collector, if this
- the nozzle associated with the collector is preferably cylindrical and is connected via an end face of the nozzle with the
- Collector and the collector is in flow communication.
- the plate heat exchanger per fluid, which is guided in the plate heat exchanger, at least two collectors with nozzle, wherein the fluid via the one, first, nozzle and collector in the associated
- Heat exchange passages can be introduced and on the other, second, collector or nozzle is again routable.
- the collector and / or the nozzle of the first heat exchange passages has a coating of the heat-insulating material on their respective inner sides (or inner walls or inner surfaces).
- the respective heat-conducting element has a wave-shaped structure with alternating foot sections and head sections, wherein the respective foot section is connected via a web to an adjacent head section, so that said wave-shaped structure results.
- the wave-shaped structure can be rounded in the transition from the foot sections or head sections to the respective webs. However, it may also have a rectangular or stepped shape.
- the wave-shaped structure-together with the two-sided partitions-forms flow channels for guiding the relevant fluid in the respective heat exchange passage.
- the respective heat-conducting element is not coated with the heat-insulating coating at the contact surfaces, via which the respective heat-conducting element is connected (in particular soldered) to an adjacent dividing wall.
- the webs of the respective heat-conducting element (in particular in the first section of the respective heat-conducting element) have the heat-insulating coating or are coated with the heat-insulating coating.
- the respective heat-conducting element has the heat-insulating coating only in the region of the webs or is coated with the heat-insulating coating.
- heat-conducting element in particular in the first section only in the region of the surface facing the respective flow channel has the heat-insulating coating or is coated with the heat-insulating coating.
- Another aspect of the present invention relates to a process for producing a plate heat exchanger according to the invention, wherein a flowable material which forms a heat-insulating material in the cured state, in
- Heat exchange passages of Platten Vietnamese Vietnamese bucerstragerblocks is initiated, the partitions and / or heat-conducting elements and / or sidebars to receive the said coating, wherein the material is cured to form the said coatings.
- the flowable material is introduced in particular in the said flow channels of the heat exchange passages, which are formed by the respective heat-conducting element, the two adjacent partitions and possibly the side strips.
- the plate heat exchanger block is dipped into the flowable material at least in sections, in particular with a first section, in order to introduce the flowable material into the corresponding heat exchange passages or flow channels.
- heat exchange passages or flow channels which are not to be coated, are previously correspondingly sealed, so that the material can not penetrate there.
- a further aspect of the present invention relates to a method for operating a plate heat exchanger according to the invention, wherein at least a first and a second fluid in at least one heat exchange passage of the
- said (at least two) fluids or fluid streams may be materially identical or differ in their material composition.
- Platten835-810 can only those heat exchange passages or flow channels, which are assigned to a certain fluid (eg the first fluid), a coating of the heat-insulating material (in particular a coating of the partitions and / or heat-conducting elements and / or the side rails of the respective heat exchange passage) while others
- a certain fluid eg the first fluid
- a coating of the heat-insulating material in particular a coating of the partitions and / or heat-conducting elements and / or the side rails of the respective heat exchange passage
- Heat exchange passages (in particular their partitions and / or
- heat-conducting elements or flow channels have no coating of the heat-insulating material.
- the individual coatings may be formed or arranged in one of the manners already described above.
- the first fluid is introduced into the at least one first heat exchange passage before the second fluid is introduced into the at least one second heat exchange passage.
- the starting means in particular a process in which, e.g. after stopping all the fluids previously through the plate heat exchanger or through
- Heat exchange passages of the plate heat exchanger have been passed or after a first time providing the heat exchanger not previously used for heat transfer, the fluids involved in the heat exchange are reintroduced into the plate heat exchanger, in which case the first fluid is introduced before the second fluid in the plate heat exchanger.
- the first fluid is first introduced into the plate heat exchanger (ie before all other fluids or at least simultaneously with possibly further fluids).
- this is the first one Fluid at least under those fluids that before the second fluid in the
- the at least one first fluid, which is introduced when starting especially before all other fluids, in the plate heat exchanger have an inlet temperature in the range of 3K to 360K, wherein the
- Plate heat exchanger before starting a temperature in particular a homogeneous temperature, in this range from 3K to 360K may have.
- the first fluid at startup may have a temperature which is about a differential temperature, the z. B. in the range of 10 K to 100 K, in particular 20K to 50K, is different from a temperature of the plate heat exchanger before starting.
- the technical teaching according to the invention advantageously allows temporal and spatial temperature gradients to be reduced by an optionally partial reduction of the heat transfer. This reduces the thermal stresses, in particular during the above-mentioned starting operations, in particular restarting operations.
- the apparatus can withstand a higher number of such operations, thereby prolonging the life.
- Fig. 1 is a perspective view of an inventive
- FIG. 2 shows a detail from a cross section through the plate heat exchanger of FIG. 1 along the sectional plane SS shown in FIG Fig. 1 shows a plate heat exchanger 10 according to the invention, which has a plurality of mutually parallel partitions in the form of partitions 4, comprising a plurality of heat exchange passages, eg 1 a, 1 b, for the transferable to each other in indirect heat transfer fluids A, B, C. , D, E form.
- the plate heat exchanger 10 according to the invention, which has a plurality of mutually parallel partitions in the form of partitions 4, comprising a plurality of heat exchange passages, eg 1 a, 1 b, for the transferable to each other in indirect heat transfer fluids A, B, C. , D, E form.
- Heat exchange between the heat exchange participating fluids takes place between adjacent heat exchange passages 1 a, 1 b, wherein the heat exchange passages 1 a, 1 b and thus the fluids are separated by the separating plates 4 from each other.
- the heat exchange takes place by means of heat transfer via the separating plates 4 and via the heat-conducting elements 2, 3 arranged between the separating plates 4, which are also referred to as fins 2, 3.
- the fins 2 shown in Figure 1 also serve the uniform distribution of the fluids over the respective
- Heat exchange passage 1 a, 1 b Heat exchange passage 1 a, 1 b.
- the heat exchange passages 1 a, 1 b are defined by in particular flush on the edge of the dividers 4 arranged side strips 8 in the form of metal strips 8, hereinafter also referred to as sidebars 8, limited.
- the preferably corrugated fins 2, 3 are arranged, wherein a cross-section of a fin 3 is shown in a detail in FIG.
- the fins 3 each have a wave-shaped structure with alternating foot portions 12, hereinafter also referred to as valleys 12, and head portions 14, hereinafter also referred to as mountains 14, the valleys 12 and mountains 14 are arranged parallel to each other on.
- a valley 12 is connected to an adjacent mountain 14 via a particular vertically extending web 13 of the respective fin 3, so that the said wave-shaped structure results.
- the wave-shaped structure can be rounded in the transition from valleys 12 or mountains 14 to the respective webs 13. However, it can also be a rectangular or
- the mountains 14 and valleys 12 of the respective fins 3 are materially connected to the respective adjacent dividing plates 4, preferably by solder joints.
- the participating in the heat exchange fluids are thus in direct thermal contact with the wavy structures 3, so that the heat transfer through the thermal contact between the mountains 14 and valleys 12 and T rennblechen 4, and thus by heat conduction is ensured.
- the orientation of the wave-shaped structure 3 within the heat exchange passages 1 a, 1 b is selected depending on the application so that a DC, cross, counter or cross counterflow between adjacent passages 1 a, 1 b is made possible ,
- the plate heat exchanger 10 also has inlets 9 to the
- Heat exchange passages 1 a, 1 b (wherein in FIG 1 only one inlet 9 to a second heat exchange passage 1 b is shown for clarity), which are exemplarily provided at the ends of the plate heat exchanger 10 (inlets at a central portion are also possible ), via the inlets 9, the fluids A, B, C, D, E in the heat exchange passages 1 a, 1 b introduced or can be deducted from these.
- the individual heat exchange passages 1 a, 1 b may have fins in the form of distributor fins 2 which distribute the respective fluid to the channels of a fins 3 of the relevant heat exchange passage 1 a, 1 b. Distribution fins 2 are not mandatory.
- C, D, E can thus be introduced via an inlet 9 of the plate heat exchanger block 1 1 in the associated heat exchange passage 1 a, 1 b and through a further opening 19, an outlet 19, from the relevant
- Heat exchange passage 1 a, 1 b are deducted again.
- the dividing plates 4, fins 3 and sidebars 8 and optionally further components are used e.g. connected by brazing.
- the partially soldered components such as Bankdonopathy (fins) 3, dividers 4, distribution fins 2, cover plates 5 and 8 sidebars are stacked on each other in a block and then in an oven to a
- Heat exchanger block 1 1 brazed.
- semi-cylindrical collectors 7 (or headers) are preferably welded over the inlets 9 and outlets 19.
- a cylindrical neck 6 is preferably welded to each collector 7.
- the connecting pieces 6 are used to connect an incoming or outgoing pipeline to the respective collector 7.
- one or more partition walls 4, 5 and / or one or more heat-conducting elements 2, 3 and / or one or more side strips 8 each have a coating 41 of a heat-insulating material, which on the respective partition wall 4, fifth or the respective heat-conducting element 2, 3 is applied.
- the base material is in particular an aluminum alloy (for example of the type 3003).
- suitable aluminum alloys / materials are also conceivable.
- the heat-insulating coating 41 is preferably applied to the partitions 4 and thermally conductive elements (fins) 2, 3 and possibly the sidebars 8 such that the flow channels 40 with the heat-insulating coating 41st
- first section A1 of the heat exchange passages 1 a are completely coated (see detail of Figure 1).
- This first section A1 can further, z. B. along the
- Transition plane U which is indicated in the figure 1 by a dashed line, in a second section A2 of the partitions 4, 5 or heat-conducting elements 2, 3 or sidebars 8 merge, the z. B. not with an inventive
- Coating 41 is provided. In this second section A2 so can the
- Inner sides of the flow channels 40 have no heat-insulating coating.
- the first section A1 preferably adjoins inlets 9 for the first
- Heat exchange passages 1 a via which a first fluid B at a start, in particular restarting, before other fluids (eg, before a second fluid A) is introduced into the block 1 1.
- a coating 41 may also be provided on the collector 7 and / or port 6, via which the first fluid B is introduced into the inlets 9.
Landscapes
- 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
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18020042 | 2018-01-30 | ||
PCT/EP2019/025016 WO2019149446A1 (de) | 2018-01-30 | 2019-01-17 | Isolierende oberflächenbeschichtung an wärmeübertragern zur verminderung von thermischen spannungen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3746728A1 true EP3746728A1 (de) | 2020-12-09 |
EP3746728B1 EP3746728B1 (de) | 2022-10-12 |
Family
ID=61131891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19701151.3A Active EP3746728B1 (de) | 2018-01-30 | 2019-01-17 | Isolierende oberflächenbeschichtung an wärmeübertragern zur verminderung von thermischen spannungen |
Country Status (6)
Country | Link |
---|---|
US (1) | US20200400392A1 (de) |
EP (1) | EP3746728B1 (de) |
JP (1) | JP2021512267A (de) |
CN (1) | CN111684230B (de) |
ES (1) | ES2930008T3 (de) |
WO (1) | WO2019149446A1 (de) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012220594A1 (de) * | 2012-09-21 | 2014-03-27 | Behr Gmbh & Co. Kg | Kondensator |
CN102853695A (zh) * | 2012-09-28 | 2013-01-02 | 陈建平 | 一种多流程板式换热器提高换热效率的方法及产品 |
US9976820B2 (en) * | 2013-05-15 | 2018-05-22 | Mitsubishi Electric Corporation | Stacking-type header, heat exchanger, and air-conditioning apparatus |
EP2843348B1 (de) * | 2013-08-29 | 2016-05-04 | Linde Aktiengesellschaft | Plattenwärmeaustauscher mit durch Metallschaum verbundenen Wärmetauscherblöcken |
FR3024535B1 (fr) * | 2014-07-29 | 2019-08-23 | Valeo Systemes Thermiques | Dispositif d'echange de chaleur comprenant un premier echangeur de chaleur et un deuxieme echangeur de chaleur |
CN204286175U (zh) * | 2014-11-26 | 2015-04-22 | 苏州舒瑞普科技有限公司 | 一种应用于lng气化的钎焊热交换器 |
CN107208983B (zh) * | 2015-01-22 | 2019-11-26 | 三菱电机株式会社 | 板式热交换器以及热泵式室外机 |
WO2016138987A1 (de) * | 2015-03-02 | 2016-09-09 | Linde Aktiengesellschaft | Verfahren zur herstellung eines plattenwärmeübertragers |
US20170115073A1 (en) * | 2015-10-22 | 2017-04-27 | Michael R. Knox | Heat exchanger elements and divices |
-
2019
- 2019-01-17 US US16/962,027 patent/US20200400392A1/en not_active Abandoned
- 2019-01-17 JP JP2020539046A patent/JP2021512267A/ja active Pending
- 2019-01-17 EP EP19701151.3A patent/EP3746728B1/de active Active
- 2019-01-17 WO PCT/EP2019/025016 patent/WO2019149446A1/de unknown
- 2019-01-17 ES ES19701151T patent/ES2930008T3/es active Active
- 2019-01-17 CN CN201980008194.0A patent/CN111684230B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN111684230A (zh) | 2020-09-18 |
US20200400392A1 (en) | 2020-12-24 |
JP2021512267A (ja) | 2021-05-13 |
WO2019149446A1 (de) | 2019-08-08 |
ES2930008T3 (es) | 2022-12-05 |
CN111684230B (zh) | 2022-11-01 |
EP3746728B1 (de) | 2022-10-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3265739B1 (de) | 3d-gedrucktes heizflächenelement für einen plattenwärmeübertrager | |
EP2843348B1 (de) | Plattenwärmeaustauscher mit durch Metallschaum verbundenen Wärmetauscherblöcken | |
DE102008052875A1 (de) | Plattenwärmetauscher | |
EP2645037B2 (de) | Plattenwärmeaustauscher mit mehreren Modulen verbunden durch Blechstreifen | |
DE10246849A1 (de) | Rohr und Wärmetauscher mit einem solchen | |
EP3359902A1 (de) | Lamelle für einen plattenwärmetauscher und verfahren zu deren herstellung | |
EP3039367B1 (de) | Verfahren zur herstellung eines plattenwärmetauschers mit mehreren durch lotbeschichtete träger verbundenen wärmetauscherblöcken | |
DE2007033B2 (de) | Plattenwärmetauscher aus Polytetrafluorethylen | |
DE3310236A1 (de) | Kaeltemittel-verteiler fuer den verdampfer einer kaeltemaschine oder einer waermepumpe | |
DE202014105709U1 (de) | Wärmeaustauscher | |
DE102011076172A1 (de) | Lamellenwärmeübertrager | |
DE3148941A1 (de) | Oelkuehler in scheibenbauweise | |
EP1625339B1 (de) | Wärmetauscher | |
EP3746728B1 (de) | Isolierende oberflächenbeschichtung an wärmeübertragern zur verminderung von thermischen spannungen | |
EP3359900B1 (de) | Randleisten mit oberflächenstruktur für plattenwärmetauscher | |
EP3507046B1 (de) | Verfahren zur herstellung eines plattenwärmeübertragerblocks mit gezielter applikation des lotmaterials auf, insbesondere fins und sidebars | |
DE112016002244B4 (de) | Wärmetauscher und Herstellungsverfahren hierfür | |
DE10305031A1 (de) | Wärmeübertrager mit wabenförmigen Strömungsspalten | |
EP1673583B1 (de) | Ladeluft/kühlmittel-kühler | |
DE10151238A1 (de) | Kältemittel/Luft-Wärmeaustauschernetz | |
EP3476514B1 (de) | Verfahren zur herstellung eines gelöteten plattenwärmeübertragerblocks durch abschnittsweises löten | |
DE102020000274A1 (de) | Verfahren zur Herstellung eines Rippen-Platten-Wärmetauschers | |
DE102008013018A1 (de) | Flaches Wärmetauscherrohr | |
DE202019103964U1 (de) | Wärmeaustauscher | |
DE102014006331A1 (de) | Plattenwärmetauscher und Verfahren zur Herstellung eines Plattenwärmetauschers |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
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 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20200629 |
|
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 |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
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 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: F25J 5/00 20060101ALI20220426BHEP Ipc: F25J 3/04 20060101ALI20220426BHEP Ipc: F28F 13/18 20060101ALI20220426BHEP Ipc: F28D 21/00 20060101ALI20220426BHEP Ipc: F28D 9/00 20060101AFI20220426BHEP |
|
INTG | Intention to grant announced |
Effective date: 20220519 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
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: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502019005893 Country of ref document: DE |
|
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: AT Ref legal event code: REF Ref document number: 1524406 Country of ref document: AT Kind code of ref document: T Effective date: 20221115 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2930008 Country of ref document: ES Kind code of ref document: T3 Effective date: 20221205 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20221012 |
|
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: 20221012 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20221012 Ref country code: PT 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: 20230213 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: 20230112 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: 20221012 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: 20221012 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20230123 Year of fee payment: 5 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20221012 Ref country code: PL 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: 20221012 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: 20221012 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: 20230212 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: 20221012 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: 20230113 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: TR Payment date: 20230117 Year of fee payment: 5 Ref country code: IT Payment date: 20230130 Year of fee payment: 5 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230527 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502019005893 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20221012 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: 20221012 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: 20221012 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: 20221012 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: 20221012 |
|
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: 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: 20221012 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: 20221012 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
26N | No opposition filed |
Effective date: 20230713 |
|
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: 20230117 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20230131 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230131 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230131 |
|
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: 20221012 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230131 |
|
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: 20230117 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20240216 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20240119 Year of fee payment: 6 Ref country code: GB Payment date: 20240124 Year of fee payment: 6 |