EP3353486A1 - Wärmeübertragungsrohr, luftbeheizter verdampfer und verfahren zum herstellen eines wärmeübertragungsrohrs - Google Patents
Wärmeübertragungsrohr, luftbeheizter verdampfer und verfahren zum herstellen eines wärmeübertragungsrohrsInfo
- Publication number
- EP3353486A1 EP3353486A1 EP16766226.1A EP16766226A EP3353486A1 EP 3353486 A1 EP3353486 A1 EP 3353486A1 EP 16766226 A EP16766226 A EP 16766226A EP 3353486 A1 EP3353486 A1 EP 3353486A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat transfer
- transfer tube
- coating
- sites
- air
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 45
- 238000000576 coating method Methods 0.000 claims abstract description 45
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 31
- 238000001704 evaporation Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 239000013078 crystal Substances 0.000 claims description 31
- 239000007788 liquid Substances 0.000 claims description 30
- 230000006911 nucleation Effects 0.000 claims description 24
- 238000010899 nucleation Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 11
- 230000008020 evaporation Effects 0.000 claims description 9
- 238000009833 condensation Methods 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- -1 polysiloxane urethane Polymers 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract 1
- 239000003570 air Substances 0.000 description 20
- 239000002245 particle Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000010410 layer Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000002105 nanoparticle Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003949 liquefied natural gas Substances 0.000 description 3
- 238000003980 solgel method Methods 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 239000002103 nanocoating Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 206010053317 Hydrophobia Diseases 0.000 description 1
- 206010037742 Rabies Diseases 0.000 description 1
- 241000383403 Solen Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001246 colloidal dispersion Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
- F28F19/04—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of rubber; of plastics material; of varnish
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F17/00—Removing ice or water from heat-exchange apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
-
- 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
- F28F2245/02—Coatings; Surface treatments hydrophilic
-
- 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
- F28F2245/04—Coatings; Surface treatments hydrophobic
Definitions
- Heat transfer tube air heated evaporator, and method of making a heat transfer tube
- the invention relates to a heat transfer tube, in particular a fin tube, for an air-heated evaporator for heating and / or evaporation of cryogenic liquids, an air-heated evaporator for heating and / or evaporation of cryogenic liquids with such a heat transfer tube and a method for producing such a heat transfer tube.
- a heat transfer tube in particular a fin tube
- cryogenic liquids e.g.
- the object of the present invention is to provide an improved heat transfer tube for an air-heated evaporator for
- a heat transfer tube in particular a fin tube, proposed for an air-heated evaporator for heating and / or evaporation of cryogenic liquids.
- the heat transfer tube comprises a
- Pipe section and a provided on the outside of the pipe section coating having a hydrophilic portion and a hydrophobic portion, wherein the hydrophilic portion in the coating of the hydrophobic portion circumferentially enclosed nucleation sites for the condensation of atmospheric moisture formed thereon and wherein the nucleation sites a size of less than 100 nm.
- the condensation of the humidity contained in the fresh air to the heat transfer tube can be controlled so that preferably form spherical ice crystals, which grow up in layers.
- the ice crystals have contact with the heat transfer tube only at a very small portion of their surface due to the wettability of the nucleation sites and the non-wettability of the hydrophobic moiety.
- the nucleation sites are preferably nanoparticles.
- the terms nanoparticles or nanoparticles denote composites of a few to a few thousand atoms or molecules.
- nano refers to their size, which is typically from 1 to 100 nm.
- the seed sites are 10 to 90 nm, more preferably 20 to 80 nm, more preferably 30 to 70 nm, further preferably 40 to 60 nm in size.
- the size of the seed sites may be a diameter, a length, a height and / or a width thereof. The size can also be referred to as particle size.
- the heat transfer tube may be radially out of the
- Tube section have outwardly extending heat transfer ribs.
- Heat transfer tube can then be referred to as a fin tube.
- the heat transfer tube ribless, so be smooth.
- the nucleation sites are so small that ice crystals formed at the nucleation sites are spherical.
- the ice crystals form from condensed at the nucleation sites humidity.
- the ice crystals grow up in layers. Due to the surface tension of water, a spherical geometry of the ice crystals is formed. As the growth of ice crystals progresses, the area at which the ice crystals adhere to the seed sites becomes larger than the total surface of the ice crystals smaller and smaller so that they fall off the heat transfer tube at the slightest touch.
- the nucleation sites are so small that the
- the heat transfer tube is arranged so that the gravity is oriented parallel to the coating.
- the ice crystals grow until they automatically fall off the heat transfer tube.
- a diameter of the germinal sites is smaller than a diameter of the ice crystals formed at the germinal sites.
- the diameter of the germinal sites is many times smaller than the diameter of the ice crystals.
- the germinal sites are punctiform.
- the nucleation sites may be, for example, circular, elliptical, oval, polygonal or star-shaped.
- the heat transfer tube on the outside of the tube section provided heat transfer ribs, where the coating is provided.
- the heat transfer fins preferably extend radially out of the
- the coating is provided both on the pipe section and on the heat transfer ribs.
- the heat transfer fins may be branched or branched. This enlarges a surface of the
- the pipe section is made of a
- the pipe section is material integral with the pipe section
- the pipe section may be an extruded profile.
- An aluminum alloy ensures very good heat transfer properties.
- the pipe section may be an extruded profile.
- Tube section for example, made of a steel alloy, a fiber composite material, a plastic material or any other material.
- the coating is a sol-gel coating.
- the coating is a nano-coating or can as
- Nanocoating be designated.
- the coating is a monocomponent polysiloxane urethane monolayer coating material.
- a polysiloxane-urethane resin filled with nanoparticles may be used as the binder base.
- the coating may, for example, have a layer thickness of 3 to 10 ⁇ m after it has hardened.
- the nucleation sites are arranged uniformly distributed in the hydrophobic portion.
- the seed sites in the hydrophobic moiety may be unevenly distributed.
- the nucleation sites are spaced apart such that the formed ice crystals do not contact each other prior to falling off the heat transfer tube. As a result, the formation of an ice sheet is reliably prevented.
- the heat transfer tube further comprises means for introducing shocks and / or vibrations in the
- the device can be activated, for example, constantly or at regular intervals.
- the Device may, for example, have a spring-loaded hammer.
- the germinal sites are embedded in the hydrophobic portion such that a respective surface of the germinal sites of the
- hydrophobic portion is uncovered.
- the surface of the seed sites is unwetted by the hydrophobic moiety.
- an air-heated evaporator for heating and / or evaporation of cryogenic liquids with at least one such heat transfer tube.
- the air-heated evaporator may include a plurality of heat transfer tubes.
- the heat transfer tubes are positioned vertically.
- a plurality of heat transfer tubes are connected in series.
- the heat transfer tubes are preferably connected to each other by means of pipe bends.
- the heat transfer tubes can also be connected in parallel.
- the heat transfer tubes may be mounted on a support frame.
- the support frame can be attached to a foundation, in particular a concrete slab.
- a method for producing a heat transfer tube in particular a fin tube, proposed for an air-heated evaporator for heating and / or evaporation of cryogenic liquids.
- the method comprises the following steps: providing a pipe section and coating the pipe section on the outside with a coating which has a hydrophilic part and a hydrophobic part, wherein the hydrophilic part in the
- the pipe section preferably includes heat transfer fins extending radially therefrom.
- the pipe section can also be ribless, so smooth.
- the heat transfer ribs are also provided with the coating.
- the coating can, for example by means of a spraying method, a
- Dipping method or a flood process on the heat transfer tube or on the pipe section and the heat transfer ribs are applied.
- the coating can be baked at an elevated temperature in the heat transfer tube.
- Other possible implementations of the heat transfer tube, the air-heated evaporator and / or the method also include not explicitly mentioned
- Fig. 1 shows a schematic side view of an embodiment of a
- FIG. 2 shows a further schematic side view of the air-heated evaporator according to FIG. 1;
- FIG. 3 shows a schematic plan view of the air-heated evaporator according to FIG. 1;
- Fig. 4 shows a schematic sectional view of an embodiment of a
- Heat transfer tube for the air-heated evaporator of FIG. 1; 5 shows the detailed view V according to FIG. 4;
- Fig. 6 shows a schematic sectional view according to the section line Vl-Vl of Fig. 5, and
- FIG. 7 shows a schematic block diagram of an embodiment of a
- FIG. 1 shows a schematic side view of an embodiment of an air-heated evaporator 1 for heating and / or evaporating cryogenic liquids.
- FIG. 2 shows a further schematic side view of FIG. 1
- FIG. 3 shows a schematic plan view of the evaporator 1. In the following, reference is made to FIGS. 1 to 3 simultaneously.
- cryogenic liquids or liquefied cryogenic gases are liquid oxygen, liquid nitrogen, liquid argon, liquid hydrogen, liquid
- the evaporator 1 can be used, for example, in the heating and / or evaporation of cryogenic liquids in the field of metal processing, medical technology, electronics, water treatment, power generation, the food industry, environmental technology or similar fields.
- the evaporator 1 is adapted to heat and / or vaporize cryogenic liquids by means of the heat of the ambient air.
- the evaporator 1 comprises a plurality of heat transfer tubes 2, of which only two are provided with a reference numeral in FIGS. 1 to 3.
- the number of heat transfer tubes 2 is arbitrary. For example, as shown in FIGS.
- the evaporator 1 may have 30 heat transfer tubes 2. Alternatively, the evaporator 1 may also comprise only 24, 16, 12, 6, or 4 heat transfer tubes 2. A plurality of heat transfer tubes 2 may be a tube assembly 3 of the Form evaporator 1. As shown in FIG. 3, each tube assembly 3 can be assigned six heat transfer tubes 2 connected in series.
- Heat transfer tubes 2 a pipe assembly 3 are fluidly connected to each other by means of pipe bends 4. Furthermore, the pipe assemblies 3 are connected to each other by means of pipe bends 4.
- the evaporator 1 further has a first port 5 and a second port
- a cryogenic liquid can be introduced through the port 5 into the evaporator 1, wherein it passes through all the heat transfer tubes 2 of the evaporator 1 in succession to heated or vaporized
- the evaporator 1 further comprises a support frame 7, on which the pipe assemblies 3 are arranged.
- the pipe assemblies 3 may be bolted or welded to the support frame 7, for example.
- the support frame 7 may be arranged on a foundation, not shown in FIGS. 1 to 3, in particular a concrete foundation. Without the support frame 7, the evaporator 1 may have a height n of, for example, 3 to 6 m.
- the evaporator 1 may further have a width bi of, for example, 30 cm to 2 m. Further, the evaporator 1 can have a depth of
- FIG. 4 shows a schematic sectional view of an embodiment of a
- Heat transfer tube 2 has a pipe section 8, through whose interior 9 a cryogenic liquid is passed.
- Heat transfer ribs 10 into it This improves the heat transfer from the pipe section 8 to the cryogenic liquid.
- On the outside are on the pipe section 8 from this radially outwardly extending second
- Heat transfer ribs 1 1 provided.
- the pipe section 8, the first heat transfer fins 10 and the second heat transfer fins 1 1 are made of one piece material.
- the heat transfer tube 2 is a Extruded profile.
- the heat transfer tube 2 is made of a
- Heat transfer fins 11 may include branches 12, 13 or end portions 14 provided on the second heat transfer fins 11. With the help of the branches 12, 13 and / or the end portions 14 may be a
- the heat transfer fins 10, 1 1 can be uniform over a circumference of the
- the heat transfer tube 2 is also referred to as a fin tube.
- the pipe section 8 may also be ribless, so smooth.
- Heat transfer tube 2 also has a coating, not shown in FIG. 4, applied on the outside.
- Heat transfer tube 2 according to the detail view V of Fig. 4.
- Fig. 6 shows a schematic partial sectional view of the heat transfer tube 2 according to the
- the coating 15 is preferably a so-called sol-gel coating.
- a sol-gel coating is understood as meaning an inorganic or hybrid polymer film system produced by a sol-gel process.
- a hybrid polymer is to be understood as meaning a polymeric material which combines structural units of different material classes at the molecular level.
- a sol-gel process is a process for producing non-metallic inorganic or hybrid polymeric materials from colloidal dispersions, the so-called
- the starting materials are also referred to as precursors. From them arise in solution in first basic reactions finest particles. Special processing of the brine can produce powders, fibers, layers or aerogels. Because of the small size of the initially generated sol particles in the Nanometer range, the sol-gel process can be used as part of the chemical
- the coating 15 may be a monocomponent polysiloxane urethane monolayer coating material filled with nanoparticles.
- a polysiloxane-urethane resin can be used as the binder.
- the coating 15 can by means of a spray, dip or flood on the binder.
- Heat transfer tube 2 are applied.
- the coating 15 can be baked at elevated temperature. As shown in FIG. 6, the coating 15 may have a thickness d 15 of 3 to 10 ⁇ m after curing.
- the coating 15 has a hydrophilic portion 16 and a hydrophobic portion 17.
- Hydrophilicity means water-loving, which means that a substance interacts strongly with water or other polar substances. The opposite of hydrophilicity is hydrophobicity. Hydrophobia literally means avoiding water. In chemistry, substances are characterized by hydrophobic substances that do not mix with water and roll it off onto surfaces. If a surface is very attracting to water, it is also called
- the portion 16 is superhydrophilic. Only the hydrophilic portion 16 is wettable with water. In particular, the hydrophilic portion 16 is completely wettable with water. The hydrophobic portion 1 is not wettable with water.
- the hydrophilic portion 16 forms in the coating 15 of the hydrophobic portion 17 circumferentially enclosed germinal sites 18 from.
- the germinal sites 18 are preferably punctiform.
- the germinal sites 18 can also be referred to as particles.
- the germinal sites 18 are nanoparticles.
- the germinal sites 18 have a particle size of less than 100 nm. In the field of particle technology and the
- Particle measurement or the dispersity analysis is a feature of
- Frequency distribution of statistics thus becomes the particle size distribution. This is often referred to as grain size distribution.
- the equivalent diameter is a measure of the size of an irregularly shaped particle such as a grain of sand. It is calculated by comparing a property of
- the seed sites 18 may have any geometry. As shown in FIGS. 5 and 6, the seed sites 18 may be, for example, circular in cross-section. Alternatively, the seed sites 18 may be oval, elliptical, polygonal, star-shaped or the like. The germinal sites 18 may be distributed uniformly or unevenly in the hydrophobic portion 17. For example, the seed sites 18 have a diameter d 8 . The diameter d 18 may be the equivalent diameter of the seed sites 18. The diameter d 18 is preferably less than 100 nm, more preferably less than 90 nm, more preferably less than 80 nm. The seed sites 18 are embedded in the hydrophobic portion 17 such that a respective surface 19 of the seed sites 18 of the hydrophobic portion 17 is uncovered.
- the seed sites 18 may be embedded in the hydrophobic portion 17 so that they do not touch the pipe section 8. Alternatively, the seed sites 18 may also contact the pipe section 8.
- the germinal sites 18 form
- Heat transfer tube 2 The humidity contained in the fresh air L condenses on the heat transfer tube 2 and freezes at this. With the help of the germinal sites 18, a controlled condensation and crystallization of the air moisture contained in the fresh air L is achieved.
- the surface 19 of the germinal sites 18 is so small that ice crystals 20 forming at the nucleation sites 18 are spherical. That is, the ice crystals 20 touch the coating 15 only at the seed sites 18 and thus with a very small
- the ice crystals 20 grow while they are due to their
- the diameter d 18 of the seed sites 18 is smaller than a diameter d 20 of the ice crystals 20. Since the hydrophobic portion 17 is not wetted with water, no ice crystals 20 are formed on this.
- the heat transfer tube 2 a in Fig. 1 only very Simplified indicated device 21 for introducing shocks, vibrations and / or vibrations in the heat transfer tube 2 have.
- the device 21 may comprise, for example, a spring-loaded hammer.
- the device 21 may act on the heat transfer tube 2, for example, constantly or at regular intervals with shocks, vibrations and / or vibrations, so that the ice crystals 20 detach from the heat transfer tube 2.
- the heat transfer tube 2 has the following advantages over known heat transfer tubes. Due to the fact that the air moisture contained in the fresh air L is selectively condensed with the aid of the germinal sites 18, spherical ice crystals 20 are formed which grow until their own weight is so great that they either automatically fall away from the heat transfer tube or from the air flow of the fresh air L. be removed or by the introduction of shocks, vibrations and / or vibrations by means of the device 21 easily from the
- Heat transfer tube 2 are detachable.
- the targeted formation of the ice crystals 20 prevents the formation of an insulating layer such as an ice sheet on the heat transfer tube 2. This is always a good one
- FIG. 7 shows a schematic block diagram of an embodiment of a method for producing such a heat transfer tube 2.
- a step S1 the tube section 8 with the heat transfer ribs 10, 11 is provided.
- a step S2 the pipe section 8 on the outside with the
- Coating 15 provided, which has the hydrophilic portion 16 and the hydrophobic portion 17, wherein the hydrophilic portion 16 in the coating 15 of the
- hydrophobic portion 17 circumferentially enclosed nucleation sites 18 for the condensation of humidity from the fresh air L forms the same.
- Germ sites 18 have a diameter d 18 of less than 100 nm. In this case, nanoparticles are used as germinal sites 18.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP15002747 | 2015-09-23 | ||
| PCT/EP2016/001506 WO2017050418A1 (de) | 2015-09-23 | 2016-09-06 | Wärmeübertragungsrohr, luftbeheizter verdampfer und verfahren zum herstellen eines wärmeübertragungsrohrs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3353486A1 true EP3353486A1 (de) | 2018-08-01 |
| EP3353486B1 EP3353486B1 (de) | 2019-09-04 |
Family
ID=54199521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16766226.1A Not-in-force EP3353486B1 (de) | 2015-09-23 | 2016-09-06 | Wärmeübertragungsrohr, luftbeheizter verdampfer und verfahren zum herstellen eines wärmeübertragungsrohrs |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20180274868A1 (de) |
| EP (1) | EP3353486B1 (de) |
| HU (1) | HUE046031T2 (de) |
| WO (1) | WO2017050418A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7159806B2 (ja) * | 2018-11-21 | 2022-10-25 | トヨタ自動車株式会社 | 熱交換器 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5156706A (en) * | 1982-09-07 | 1992-10-20 | Sephton Hugo H | Evaporation of liquids with dispersant added |
| US20040022861A1 (en) * | 2001-01-30 | 2004-02-05 | Williams Robert O. | Process for production of nanoparticles and microparticles by spray freezing into liquid |
| DE10227135A1 (de) * | 2002-06-18 | 2004-01-08 | BSH Bosch und Siemens Hausgeräte GmbH | Verdampfer für ein Kältegerät |
| WO2008116020A2 (en) * | 2007-03-20 | 2008-09-25 | Outlast Technologies, Inc. | Articles having enhanced reversible thermal properties and enhanced moisture wicking properties to control hot flashes |
| JP2009235338A (ja) * | 2008-03-28 | 2009-10-15 | Mitsubishi Electric Corp | コーティング組成物、熱交換器、空気調和機 |
| DE102009024320B4 (de) * | 2009-06-03 | 2012-11-08 | Gesellschaft zur Förderung von Medizin-, Bio- und Umwelttechnologien e.V. | Beschichtungen mit eisabweisenden und gefrierpunktsenkenden Eigenschaften, Verfahren zu deren Herstellung und Verwendung |
| JP5712777B2 (ja) * | 2011-05-10 | 2015-05-07 | 日本軽金属株式会社 | アルミニウム又はアルミニウム合金からなる熱交換器 |
| DE102012101980A1 (de) * | 2012-03-08 | 2013-09-12 | Alpha-Innotec Gmbh | Verdampfer insbesondere für einen kältemittelkreislauf |
| US20170010060A1 (en) * | 2015-07-06 | 2017-01-12 | Chih-Hung Chang | Heterogeneous surfaces for patterned bubble arrays, enhanced heat transfer, & advanced heat exhanger applications |
| AU2015409182A1 (en) * | 2015-09-15 | 2018-02-01 | Halliburton Energy Services, Inc. | Core-shell particles for treatment of subterranean formations |
| US20180145625A1 (en) * | 2016-11-22 | 2018-05-24 | Research Foundation Of The City University Of New York | Hybrid substrate that facilitates dropwise condensation |
-
2016
- 2016-09-06 US US15/762,400 patent/US20180274868A1/en not_active Abandoned
- 2016-09-06 EP EP16766226.1A patent/EP3353486B1/de not_active Not-in-force
- 2016-09-06 WO PCT/EP2016/001506 patent/WO2017050418A1/de not_active Ceased
- 2016-09-06 HU HUE16766226A patent/HUE046031T2/hu unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP3353486B1 (de) | 2019-09-04 |
| US20180274868A1 (en) | 2018-09-27 |
| WO2017050418A1 (de) | 2017-03-30 |
| HUE046031T2 (hu) | 2020-01-28 |
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