EP3397912A1 - Verfahren und wärmeaustauscher zur rückgewinnung von kälte bei der regasifizierung tiefkalter flüssigkeiten - Google Patents
Verfahren und wärmeaustauscher zur rückgewinnung von kälte bei der regasifizierung tiefkalter flüssigkeitenInfo
- Publication number
- EP3397912A1 EP3397912A1 EP16742154.4A EP16742154A EP3397912A1 EP 3397912 A1 EP3397912 A1 EP 3397912A1 EP 16742154 A EP16742154 A EP 16742154A EP 3397912 A1 EP3397912 A1 EP 3397912A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coiled tubing
- heat exchanger
- intermediate medium
- container
- liquid
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims description 16
- 238000002309 gasification Methods 0.000 title abstract 2
- 239000003949 liquefied natural gas Substances 0.000 claims abstract description 35
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 238000001704 evaporation Methods 0.000 claims abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 4
- 239000001301 oxygen Substances 0.000 claims abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 4
- 238000011084 recovery Methods 0.000 claims abstract description 4
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 37
- 239000003507 refrigerant Substances 0.000 claims description 21
- 239000001294 propane Substances 0.000 claims description 18
- 238000009835 boiling Methods 0.000 claims description 10
- 229920006395 saturated elastomer Polymers 0.000 claims description 7
- 239000012267 brine Substances 0.000 claims description 6
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 6
- 238000007711 solidification Methods 0.000 claims description 5
- 230000008023 solidification Effects 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 239000002826 coolant Substances 0.000 abstract description 2
- 239000012071 phase Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000012782 phase change material Substances 0.000 description 2
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 239000006200 vaporizer Substances 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
- F28D7/022—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of two or more media in heat-exchange relationship being helically coiled, the coils having a cylindrical configuration
-
- 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
- F28D2021/0066—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications with combined condensation and evaporation
Definitions
- the invention relates to the recovery of cold in the regasification of cryogenic liquids, in particular liquefied natural gas
- LNG Liquefied Natural Gas at -162 ° C and 1 bar atmospheric pressure
- LN2 Liquefied Nitrogen
- L02 Liquefied Oxygen
- the heat exchanger is for, although relatively small in comparison to the fuel energy, so valuable
- Natural gas can be transferred under atmospheric pressure after cooling to -162 ° C and subsequent removal of the heat of condensation from the gaseous to the liquid phase. This is the reduction of the volume on the
- Liquefied natural gas can thus be stored in an attractive manner and transported over long distances.
- the equally costly and value-adding process chain to be realized ranges from extraction and processing via liquefaction, storage, long-distance transport with tankers, re-storage in large tanks and repeated transport to the user until regasification. The end of this chain very often forms one
- satellite system namely a double-walled
- Vacuum-insulated LNG storage without liquefaction facility Vacuum-insulated LNG storage without liquefaction facility.
- the satellite system has a regasification device,
- LNG liquefied natural gas
- PCM Phase Change Material
- the cold of the LNG is transferred to a liquid refrigerant, which is to be used down to the temperature level of about -60 ° C, without pumping phase change and thus remains safe.
- a liquid refrigerant which is to be used down to the temperature level of about -60 ° C, without pumping phase change and thus remains safe.
- Therminol D12 a synthetic liquid based on aliphatic hydrocarbons.
- Heat transfer properties propane is preferably used as the intermediate medium.
- This heat exchanger is expediently designed as a cylinder in vertical alignment and closed at the top and bottom by dished ends.
- the container thus realized contains at least one in the upper part
- this is filled with the intermediate medium, preferably propane, which is securely encapsulated.
- the propane is in the lower part to the level of a boiling liquid and in the upper region above the filling level condensing saturated steam.
- Both surface heat exchangers are designed as tube helices.
- Intermediate medium can be done on the lower tube coils.
- the heat transfer from the upper coiled tubing to the deep-frozen liquid to be evaporated is particularly effective because of the long flow path and the resulting on a circular path secondary flow in the interior of the coiled tubing.
- the largest transport resistance the reduction of which has a particularly positive effect on the entire heat transfer result.
- the use of a turbulator can further reduce this transport resistance.
- in the lower part of the cylindrical container further tube spirals protruding freely from below into the inner space, but at least one coiled tubing, are located.
- the brine gives the evaporation of the
- the cylindrical container is after its evacuation with the
- Intermediate medium preferably propane, taking into account temperature, density and mass sustainably filled so that the upper tube coils remain free at each subsequent operating state, while the lower tube coils of liquid intermediate medium in the boiling state are completely flooded.
- This distance can be calculated with the help of the material values of the intermediate medium. It corresponds approximately to the diameter of the coiled tubing.
- Boiling state are in phase equilibrium.) Approximately 9.6 bar. The density of the liquid is then about 492 kg / m 3 .
- the density of the liquid phase is then about 612 kg / m 3 .
- the following embodiments are related to the regasification of cryogenic liquefied natural gas LNG (Liquefied Natural Gas) stored in a satellite tank farm.
- LNG Liquified Natural Gas
- Heat exchangers for brine temperature levels above -60 ° C and for cooling capacities in the range below 100 kW explained in more detail with reference to drawings.
- the heat exchangers used differ in their design.
- FIG. 1 A heat exchanger according to the invention is shown in FIG. 1 as a section along its vertical system axis.
- a coiled tubing 6 and at the lower dished bottom 3 a coiled tubing 7 is arranged directly or indirectly in each case in freely projecting into the container interior.
- the attachment to the container 1 is realized only on one side.
- the intermediate medium 8 namely propane 8, which is thus securely encapsulated.
- the level 9 of the liquid intermediate medium 8 in the container 1 is adjusted so that the upper tube coil 6 is surrounded in each operating state of gaseous intermediate medium 8.1 and the lower tube coil 7 is flooded with liquid intermediate medium 8.2.
- the two coiled tubing 6 and 7 a
- the container 1 and the tube coils 6 and 7 are advantageously made of stainless steel. Thus, a sufficient Tiefkaltzähmaschine and a high
- Therminol D12 is used as a refrigerant.
- FIG. 2 Another heat exchanger according to the invention is also shown in FIG. 2 as a section along its vertical system axis.
- both the coiled tubing 6 and the coiled tubing 7 are present in multiple arrangement in the container 1 in otherwise analogous construction.
- seven tube coils 6 and 7 are arranged in each case. All other features are taken apart from structural adjustments.
- the inflow 12 of the refrigerant to the coiled tubing 7 is also carried out with the interposition of a manifold 15 directly, while the drain 13 is realized via a further manifold 16 in the lower part of the container 1.
- the two manifolds 16 may alternatively be arranged outside the container 1. It is recommended to use the headers 16 for each one-sided attachment of the coiled tubing 6 and 7 on the container 1. Depending on the conditions of use, the upper and / or lower tube coils 6 and 7 can be connected individually or in bundles.
- Heat exchanger effective heat transfer from the refrigerant to be cooled to the boiling intermediate medium 8.2 in the lower
- the natural circulation of the intermediate medium comes by the dripping of the condensate of the or the upper
- intermediate medium for example propane, gaseous, condensing
- intermediate medium for example propane, liquid or boiling
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015016889 | 2015-12-28 | ||
DE102016006121.9A DE102016006121A1 (de) | 2015-12-28 | 2016-05-18 | Verfahren und Wärmeaustauscher zur Rückgewinnung von Kälte bei der Regasifizierung tiefkalter Flüssigkeiten |
PCT/DE2016/000253 WO2017114518A1 (de) | 2015-12-28 | 2016-06-17 | Verfahren und wärmeaustauscher zur rückgewinnung von kälte bei der regasifizierung tiefkalter flüssigkeiten |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3397912A1 true EP3397912A1 (de) | 2018-11-07 |
EP3397912B1 EP3397912B1 (de) | 2019-11-13 |
Family
ID=59010575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16742154.4A Active EP3397912B1 (de) | 2015-12-28 | 2016-06-17 | Verfahren und wärmeaustauscher zur rückgewinnung von kälte bei der regasifizierung tiefkalter flüssigkeiten |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3397912B1 (de) |
DE (2) | DE102016006121A1 (de) |
TW (1) | TW201730475A (de) |
WO (1) | WO2017114518A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017007009A1 (de) | 2017-07-25 | 2019-01-31 | Eco ice Kälte GmbH | Kälteversorgungsanlage, gekoppelt an die Regasifizierungseinrichtung eines Liquified Natural Gas Terminals |
CN109751508B (zh) * | 2017-11-02 | 2021-06-11 | 浙江三花智能控制股份有限公司 | 液化天然气气化器 |
DE102017012125A1 (de) * | 2017-12-29 | 2019-07-04 | Eco ice Kälte GmbH | Wärmeübertragungseinrichtung für die Kältebereitstellung in Kühlfahrzeugen, deren Kraftfahrzeugmotor mit LNG angetrieben wird |
DE102020001338A1 (de) | 2020-02-29 | 2021-09-02 | REGASCOLD GmbH | Wärmeübertrager für die Rückgewinnung von Kälteleistung aus der Regasifizierung tiefkalter verflüssigter Gase |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6089022A (en) | 1998-03-18 | 2000-07-18 | Mobil Oil Corporation | Regasification of liquefied natural gas (LNG) aboard a transport vessel |
JP4291459B2 (ja) | 1999-06-28 | 2009-07-08 | 大阪瓦斯株式会社 | 熱交換器の徐冷方法及び装置 |
JP3946398B2 (ja) | 2000-01-18 | 2007-07-18 | 株式会社神戸製鋼所 | 中間媒体式気化器及び当該気化器を用いた天然ガスの供給方法 |
WO2004031644A1 (en) | 2002-10-04 | 2004-04-15 | Hamworthy Kse A.S. | Regasification system and method |
DE102008031041B4 (de) * | 2008-06-30 | 2010-06-02 | Aprovis Energy Systems Gmbh | Wärmetauscher zur Porzessgasaufbereitung |
US20120318017A1 (en) * | 2011-06-20 | 2012-12-20 | Cheng Alan T | System and method for cryogenic condensing |
DE102011081673A1 (de) | 2011-08-26 | 2013-02-28 | Siemens Aktiengesellschaft | Verfahren und Anlage zur Regasifizierung von Flüssigerdgas |
-
2016
- 2016-05-18 DE DE102016006121.9A patent/DE102016006121A1/de not_active Withdrawn
- 2016-06-17 EP EP16742154.4A patent/EP3397912B1/de active Active
- 2016-06-17 DE DE112016006090.4T patent/DE112016006090A5/de not_active Withdrawn
- 2016-06-17 WO PCT/DE2016/000253 patent/WO2017114518A1/de unknown
- 2016-12-23 TW TW105142936A patent/TW201730475A/zh unknown
Also Published As
Publication number | Publication date |
---|---|
TW201730475A (zh) | 2017-09-01 |
DE112016006090A5 (de) | 2019-01-10 |
DE102016006121A1 (de) | 2017-06-29 |
EP3397912B1 (de) | 2019-11-13 |
WO2017114518A1 (de) | 2017-07-06 |
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