EP2368084B1 - Échangeur de chaleur - Google Patents
Échangeur de chaleur Download PDFInfo
- Publication number
- EP2368084B1 EP2368084B1 EP09795504.1A EP09795504A EP2368084B1 EP 2368084 B1 EP2368084 B1 EP 2368084B1 EP 09795504 A EP09795504 A EP 09795504A EP 2368084 B1 EP2368084 B1 EP 2368084B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- waves
- passages
- wave
- liquid
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007788 liquid Substances 0.000 claims description 34
- 238000012856 packing Methods 0.000 claims description 9
- 238000004821 distillation Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 10
- 230000008016 vaporization Effects 0.000 description 9
- 238000009834 vaporization Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000006200 vaporizer Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 235000000112 undernutrition Nutrition 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
-
- 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
- F25J3/04406—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 using a dual pressure main column system
- F25J3/04412—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 using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
-
- 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
- F25J5/005—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 in a reboiler-condenser, e.g. within a column
-
- 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
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
-
- 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
- F25J2250/00—Details related to the use of reboiler-condensers
- F25J2250/04—Down-flowing type boiler-condenser, i.e. with evaporation of a falling liquid film
-
- 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
- F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
- F25J2290/32—Details on header or distribution passages of heat exchangers, e.g. of reboiler-condenser or plate heat exchangers
Definitions
- the present invention relates to the vaporization of a liquid by heat exchange with a second fluid by means of a heat exchanger of the vertical plate type according to the preamble of claim 1 and known from the document FR-A-2 547 898 . It applies in particular to air distillation plants.
- the liquid oxygen which is in the bottom of the low pressure column is vaporized by heat exchange with the nitrogen gas taken at the top of the medium pressure column.
- the temperature difference between the oxygen and the nitrogen made necessary by the structure of the heat exchanger imposes the operating pressure of the medium pressure column so it is desirable that this difference in temperature is as small as possible, in order to minimize the expenses related to the compression of the air to be treated injected into the medium-pressure column.
- phase-change exchangers consist of aluminum exchangers with brazed plates and fins, which make it possible to obtain very compact members with a large exchange surface.
- These exchangers consist of plates between which are inserted waves or fins, thus forming a stack of "passages” vaporization and "passages” condensation.
- waves such as straight waves, perforated or “serrated” waves.
- each vaporizer is conventionally carried out according to the principle described in FR-A-2547898 : the feeding of the vaporization passages is done by the top of the condensation passages. The oxygen then passes through a row of holes that ensure its primary distribution in the vaporization passages. It then flows through a horizontal generator waveband which provides a so-called secondary distribution (distribution of the liquid between channels).
- the liquid oxygen that is vaporized contains impurities in dissolved form.
- the main impurities are nitrous oxide (N 2 O), carbon (CO 2 ), hydrocarbons (C 2 , C 3 , ).
- these impurities can be deposited in the vaporization passages (either in solid form or in liquid form). It is important to control industrially the formation of these solid or liquid deposits to avoid any risk of explosion.
- the so-called secondary distribution uses a waveband with horizontal generator and partial shift.
- the bar 7 has a U-shaped profile, consisting of two layers, including the outside has a rectangular section while the inside has a sinusoidal edge.
- the Figure 1B we see the same part of the exchanger seen from the front.
- the wave with horizontal generatrix 1 is located between two plates 35 defining an exchanger passage which is closed by a bar 7.
- the bar is preferably composed of two layers but the inner layer has cutouts 33 or flattened according to the shape of the bar 7 where the U-shaped profile is removed, which allows the waves 1,3 of s 'embed in the bar 7.
- a heat exchanger for vaporizing a liquid by heat exchange with a second fluid comprising a parallelepiped body formed of an assembly of parallel vertical plates defining between them a multitude of flat passages and side bars closing the outward passages, means for sending the liquid in a first set of passages and the second fluid in the remaining passages, a packing for distributing the liquid at the upper end of the passages of said first set, on any the horizontal length of these, by a fine distribution over the entire length of these passages, characterized in that at least one of the side bars has, towards the inside of the exchanger, a curved profile on most of its length and a flat profile over part of its length and in that an edge of the lining contacts the part of its length where the profile is flat.
- a distillation air separation plant of the type comprising a first distillation column operating under a relatively high pressure, a second distillation column operating under a relatively low pressure, and a heat exchanger making it possible to put the bottom liquid of the second column in heat exchange relation with the overhead gas of the first column, characterized in that the heat exchanger as defined above and in that the installation comprises supply means for supplying the tank liquid to the exchanger and gas supply means for the passages of the exchanger.
- Air separation systems of this kind correspond for the known part to a so-called double-column separation apparatus, well known from conventional works such as Kerry's "Tieftemperaturtechnik” or “Industrial Gas Handbook”.
- the proposed solution aims to eliminate or greatly reduce existing free space in the area of the "serrated" wave at the horizontal generator ("hardway") currently used. For this, it is proposed to remove the profile of the lateral bar on the height of the wave of partial shift (“serrated”) with horizontal generatrix (“hardway”) (see figure 7 ). In addition, care must be taken to ensure that the junctions between the generator serrated wave mats ("serrated”) horizontal (“hardway”) are put end to end failing to use a single wave band across the width of the passage.
- the first model is equipped with two classic sidebars (with curved profile) and the second is equipped with two sidebars whose empty spaces have been filled with aluminum to obtain a flat profile.
- the liquid nitrogen flow rate is approximately 0.7 l / h / channel, which is slightly less than the flow rates conventionally used.
- an exchanger is composed of an assembly of parallel vertical plates separated by bars 5.7 which clog the passages.
- the plates define between them a multitude of flat passages.
- a lining is placed at the top of the passages, constituted by a first and a second wave 1,3, each wave being a non-perforated aluminum sheet with horizontal generatrices. (so-called "hard way” arrangement with respect to the flow of liquid oxygen).
- each horizontal or pseudo-horizontal facet of the wave 1,3 is provided with a punctured (non-illustrated) offset upward of a quarter wave pitch.
- the width of the punctured measured along a generatrix of the wave, is of the same order as the distance separating each of them from the two adjacent flat on the same facet.
- the liquid oxygen passes through holes placed above the packing, at a rate defined by the passage section of the latter and by the height of the liquid which surmounts it.
- the holes thus ensure a rough predistribution of the liquid oxygen along the passages, and the liquid oxygen thus pre-distributed on the waves 1,3, which ensures a fine distribution over the entire length of each passage.
- Liquid oxygen thus approaches lower waves with vertical generatrix 9 by dripping in a perfectly uniform manner on all the walls of the passages which are assigned to it, that is to say by forming on these walls a continuous descending film.
- the nitrogen gas reaches the exchanger through distribution waves, then flows down along other passages. In doing so, it gradually gives up heat to the liquid oxygen in adjacent passages (not shown), so that oxygen vaporizes and simultaneously nitrogen condenses.
- the two waves 1,3 should have the same configuration in terms of shapes and dimensions and be deposited so that their edges contact each other perfectly to prevent liquid leakage.
- the bars 7 are formed with cutouts so that the wave 1 enters an opening in the bar on the left and the wave 3 enters an opening in the bar on the right. For this it is necessary that the total length of the packing formed by the waves is greater than the distance between the two inner edges of the bars.
- the waves with horizontal generatrix ("hardway") 1.3 are in abutment against each other, but since it is necessary a clearance at each side bar 7 to allow adjustment between tolerances of the waves and tolerances of the bars, it there is a risk that the waves will move during soldering.
- the waves can be attached to each other by blocking keys of the pieces 11 attached to the upper bar 5.
- the Figure 7 shows stapling of the waves together by a staple 13.
- the two waves are cut in the zigzag thickness, so that the two cuts marry perfectly and there is no play between the waves.
- the waves 1,3 can be blocked together by shims 21 placed between the bars 5 and each wave, as can be seen in FIG. Figure 10 .
- shims 21 placed between the bars 5 and each wave, as can be seen in FIG. Figure 10 .
- the two waves 1,3 fit and fit together.
- the Figures 12A and 12B show details of the Figure 7 where we see that the staples 13 are embedded in the cuts of the partial shift waves.
- the Figure 13 represents waves 1,3 attached by springs 23 which are embedded in several cuts of each partial shift wave.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL09795504T PL2368084T3 (pl) | 2008-11-24 | 2009-11-24 | Wymiennik ciepła |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0857951A FR2938904B1 (fr) | 2008-11-24 | 2008-11-24 | Echangeur de chaleur |
PCT/FR2009/052269 WO2010058142A2 (fr) | 2008-11-24 | 2009-11-24 | Echangeur de chaleur |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2368084A2 EP2368084A2 (fr) | 2011-09-28 |
EP2368084B1 true EP2368084B1 (fr) | 2018-05-30 |
Family
ID=40897275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09795504.1A Active EP2368084B1 (fr) | 2008-11-24 | 2009-11-24 | Échangeur de chaleur |
Country Status (7)
Country | Link |
---|---|
US (1) | US9086244B2 (zh) |
EP (1) | EP2368084B1 (zh) |
JP (1) | JP2012516425A (zh) |
CN (1) | CN102334002B (zh) |
FR (1) | FR2938904B1 (zh) |
PL (1) | PL2368084T3 (zh) |
WO (1) | WO2010058142A2 (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL2015996B1 (en) * | 2015-12-21 | 2017-06-30 | Recair Holding B V | Heat exchanger. |
FR3065795B1 (fr) * | 2017-04-27 | 2019-06-14 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Echangeur de chaleur a jonction d'ondes amelioree, installation de separation d'air associee et procede de fabrication d'un tel echangeur |
US11255610B2 (en) * | 2020-01-22 | 2022-02-22 | Cooler Master Co., Ltd. | Pulse loop heat exchanger and manufacturing method of the same |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3266568A (en) * | 1964-01-21 | 1966-08-16 | Trane Co | Connecting means for heat exchanger cores |
US3310105A (en) * | 1964-06-15 | 1967-03-21 | Trane Co | Heat exchanger with combined closing member and fluid distributor |
US3380517A (en) * | 1966-09-26 | 1968-04-30 | Trane Co | Plate type heat exchangers |
JPS59103089U (ja) * | 1982-12-28 | 1984-07-11 | 日産自動車株式会社 | 過給機付内燃機関の吸気冷却装置 |
FR2547898B1 (fr) * | 1983-06-24 | 1985-11-29 | Air Liquide | Procede et dispositif pour vaporiser un liquide par echange de chaleur avec un deuxieme fluide, et leur application a une installation de distillation d'air |
US5438836A (en) * | 1994-08-05 | 1995-08-08 | Praxair Technology, Inc. | Downflow plate and fin heat exchanger for cryogenic rectification |
FI97694C (fi) * | 1994-09-27 | 1997-02-10 | Hadwaco Ltd Oy | Haihduttimen nesteenjakaja |
US5730209A (en) * | 1995-04-28 | 1998-03-24 | Air Products And Chemicals, Inc. | Defrost and liquid distribution for plate-fin heat exchangers |
GB2316478A (en) * | 1996-08-20 | 1998-02-25 | Imi Marston Ltd | Liquefaction heat exchanger |
JP4592125B2 (ja) * | 1998-10-05 | 2010-12-01 | 大陽日酸株式会社 | 流下液膜式凝縮蒸発器 |
FR2790546B1 (fr) * | 1999-03-01 | 2001-04-20 | Air Liquide | Echangeur de chaleur, applications a la vaporisation de liquide sous pression et appareil de distillation d'air equipe d'un tel echangeur |
FR2819048B1 (fr) * | 2000-12-28 | 2005-08-19 | Air Liquide | Ailette ondulee pour echangeur de chaleur a plaques brasees et echangeur de chaleur correspondant |
US20080225492A1 (en) * | 2005-10-13 | 2008-09-18 | Sony Computer Entertainment Inc. | Electronic Device and Heat Sink |
JP4704928B2 (ja) * | 2006-02-15 | 2011-06-22 | 大陽日酸株式会社 | 熱交換型蒸留装置 |
CN100518475C (zh) * | 2006-06-02 | 2009-07-22 | 富准精密工业(深圳)有限公司 | 散热装置 |
JP4577291B2 (ja) | 2006-09-29 | 2010-11-10 | 株式会社デンソー | 冷媒蒸発器 |
-
2008
- 2008-11-24 FR FR0857951A patent/FR2938904B1/fr not_active Expired - Fee Related
-
2009
- 2009-11-24 JP JP2011536938A patent/JP2012516425A/ja active Pending
- 2009-11-24 US US13/130,375 patent/US9086244B2/en active Active
- 2009-11-24 PL PL09795504T patent/PL2368084T3/pl unknown
- 2009-11-24 EP EP09795504.1A patent/EP2368084B1/fr active Active
- 2009-11-24 WO PCT/FR2009/052269 patent/WO2010058142A2/fr active Application Filing
- 2009-11-24 CN CN200980146908.0A patent/CN102334002B/zh active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
WO2010058142A3 (fr) | 2012-11-15 |
WO2010058142A2 (fr) | 2010-05-27 |
US9086244B2 (en) | 2015-07-21 |
CN102334002B (zh) | 2014-11-05 |
CN102334002A (zh) | 2012-01-25 |
FR2938904A1 (fr) | 2010-05-28 |
JP2012516425A (ja) | 2012-07-19 |
PL2368084T3 (pl) | 2018-11-30 |
EP2368084A2 (fr) | 2011-09-28 |
FR2938904B1 (fr) | 2012-05-04 |
US20110220482A1 (en) | 2011-09-15 |
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