EP1429098A1 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

Info

Publication number
EP1429098A1
EP1429098A1 EP03000424A EP03000424A EP1429098A1 EP 1429098 A1 EP1429098 A1 EP 1429098A1 EP 03000424 A EP03000424 A EP 03000424A EP 03000424 A EP03000424 A EP 03000424A EP 1429098 A1 EP1429098 A1 EP 1429098A1
Authority
EP
European Patent Office
Prior art keywords
passages
heat exchanger
evaporation
block
inlet
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.)
Withdrawn
Application number
EP03000424A
Other languages
German (de)
English (en)
Inventor
Dietmar Winkler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linde GmbH
Original Assignee
Linde GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linde GmbH filed Critical Linde GmbH
Publication of EP1429098A1 publication Critical patent/EP1429098A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01B—BOILING; BOILING APPARATUS ; EVAPORATION; EVAPORATION APPARATUS
    • B01B1/00—Boiling; Boiling apparatus for physical or chemical purposes ; Evaporation in general
    • B01B1/005—Evaporation for physical or chemical purposes; Evaporation apparatus therefor, e.g. evaporation of liquids for gas phase reactions
    • 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
    • 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
    • F25J2250/02—Bath type boiler-condenser using thermo-siphon effect, e.g. with natural or forced circulation or pool boiling, i.e. core-in-kettle heat exchanger
    • 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
    • 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

Definitions

  • the invention relates to a bath condenser with at least one Heat exchanger block, the liquefaction passages for a heating medium and Evaporation passages for a fluid to be evaporated, the inlet and Exit openings of the evaporation passages at two opposite End faces of the heat exchanger block are located and are open to the environment.
  • the Condenser block in the liquid bath from which liquid is to be evaporated When the heat exchanger is designed as a bath condenser, the Condenser block in the liquid bath from which liquid is to be evaporated.
  • the liquid enters the evaporation passages of the condenser block from below one and becomes partially against that flowing through the liquefaction passages Heating medium evaporates.
  • the density of the in the evaporation passages evaporating medium is less than the density of the surrounding one Liquid bath, which creates a siphon effect, so that liquid from the Liquid bath flows into the evaporation passages.
  • the bath condenser is usually implemented as a plate heat exchanger alternating evaporation passages for oxygen and liquefaction passages for the nitrogen.
  • the vertical evaporation passages are open at the top and bottom.
  • the liquefaction passages for the nitrogen are against it connected at the top and bottom with headers attached to the side of the capacitor block, through which the nitrogen is supplied or withdrawn.
  • the redirection of nitrogen from the side gas header through which the nitrogen is fed into the vertical nitrogen passages take place via diagonally running in the condenser block Distribution channels. Accordingly, the condensed nitrogen is arranged obliquely Distribution passages led from the liquefaction passages into the liquid header.
  • the sump is used as a container for the liquid oxygen bath Rectification column, for example the low pressure column, or a separate one Condenser tanks. Since these tanks are pressure tanks, are these are practically cylindrical without exception.
  • the plate heat exchanger blocks have a cuboid geometry for cost and manufacturing reasons.
  • the object of the present invention is therefore to develop a bath condenser with better use of the space in the container holding the condenser becomes.
  • the bath condenser according to the invention has at least one Heat exchanger block, the liquefaction passages for a heating medium and Evaporation passages for a fluid to be evaporated.
  • the inputs and Exit openings of the evaporation passages are located on two opposite end faces of the heat exchanger block and are against the Environment, i.e. to the container in which the bath condenser is arranged, open.
  • the inlet and outlet openings of the liquefaction passages are located also on these two end faces of the heat exchanger block.
  • a gas header For the supply of the heating medium with the inlet openings Evaporation passages connected to a gas header, which are provided with a nozzle is. Accordingly, a liquid header is provided, which is connected to the flow side Outlet openings of the evaporation passages is connected.
  • the gas header and the liquid headers each set one outside the condenser block Flow connection between the individual evaporation passages and one the respective header connected and serve to distribute the supplied heating medium to the evaporation passages or Merging the heating medium emerging from the evaporation passages.
  • the evaporation passages and the liquefaction passages are preferably in Direction of the depth of the capacitor block alternately arranged, each in a plane perpendicular to this direction only one type of passage, i.e. either Evaporation or liquefaction passages are arranged.
  • the height is in The following is the expansion of the condenser block in the main flow direction individual passages, i.e. in the direction of the height, the block is through the bounded two end faces, in which the inlet and outlet openings of the Evaporation passages are.
  • the block width is therefore the remaining one Direction in which similar passages are arranged side by side.
  • the evaporation passages are preferably arranged such that the majority the evaporation passages extend straight through the heat exchanger block, which minimizes the pressure loss in the passages. Only in the area of The gas and liquid headers of the liquefaction passages are straightforward Guiding the evaporation passages is not possible because a part of the end faces is covered by the headers.
  • the evaporation passages across the entire width of the are advantageous Capacitor blocks distributed. Because part of the end faces are covered by the headers If the evaporation passages are guided in a straight line, it is not possible spread the evaporation passages over the entire width of the block. It areas with sloping passages are therefore provided, through which the fluid to be evaporated is also diverted into the part of the condenser block, which is in the "shadow" of the header, i.e. in the part of the block that is more straightforward The evaporation passages would not be accessible.
  • the bath condenser is preferably composed of a plurality of heat exchanger blocks built up. By using several heat exchanger blocks, the Available space in the container holding the bath condenser is better exploit. It is useful to have a large heat exchanger block in the center to arrange the container and two smaller blocks next to it. A special one good use of space is achieved if in the top view, i.e. in a through the Block width and depth defined level, the longer sides of the smaller blocks correspond approximately to the shorter sides of the larger block and additionally the shorter sides of the smaller blocks approximately 0.162 times the diameter correspond in which the blocks are to be inscribed.
  • four are in plan view rectangular heat exchanger blocks connected to a bath condenser.
  • Two Larger blocks are located side by side in the center of the container.
  • One smaller block each is placed on either side of the large blocks.
  • the container cross-section can also be filled with any number of blocks.
  • heat exchanger blocks are advantageous, particularly preferably all Heat exchanger blocks, a common gas and a common Liquid header.
  • the heating medium is supplied via a single gas header, with all the openings in the liquefaction passages of the different heat exchanger blocks is connected. Accordingly it will Heating medium also through a single liquid header from all Heat exchanger blocks removed again.
  • the distribution of the heating medium over the individual liquefaction passages Blocks preferably take place within the capacitor block in areas with Distribution channels that distribute the heating medium from the Make inlet openings over the entire width of the heat exchanger block.
  • the bath condenser according to the invention is particularly suitable for use in Cryogenic air separation plants and especially as Main capacitor of a double column suitable.
  • a bath condenser according to the invention which as Main condenser in a double column of a cryogenic air separation plant for Commitment comes.
  • the bath condenser has two central heat exchanger blocks 1 a, 1 b and two smaller heat exchanger blocks 2a, 2b.
  • the heat exchanger blocks 1 a, 1 b, 2a, 2b have a common gas header 3 and a common one Liquid header 4.
  • FIG. 2 shows a top view of the bath condenser according to FIG. 1.
  • the Bath condenser is located either centrally in a round rectification column or in a separate circular condenser container arranged.
  • the heat exchanger blocks 1a, 1b, 2a, 2b are therefore dimensioned and arranged so that a good one Area utilization of a predetermined circular area 5, for example the Column cross-sectional area is reached.
  • the length 6 of the two smaller blocks 2a, 2b approximately the sum of the corresponds to shorter sides 7 of the two central blocks 1a, 1b and additionally the Shorter sides 8 of the smaller blocks 2a, 2b can be chosen so that these 0, 162 times the circle 5, in which the blocks 1 a, 1 b, 2a, 2b inscribed should be.
  • the heat exchanger blocks 1a, 1b, 2a, 2b are constructed identically.
  • Figure 3 is an example shows a section through the heat exchanger block 1 a, in which the course the liquefaction passages can be seen.
  • a heating medium in Main condenser of an air separation plant uses gaseous nitrogen.
  • the Gaseous nitrogen becomes the liquefaction passages 9 of the heat exchanger blocks 1 a, 1b, 2a, 2b supplied via the gas header 3.
  • the gas header 3 is designed as a semi-cylindrical tube and is centered on the upper one End faces of the blocks 1a, 1b, 2a, 2b arranged. Below the gas header 3 there is a triangular region 10 with vertical ones Verteilpassagen. The base of this isosceles and with the tip down directed triangle 10 is from the lower edge of the semi-cylindrical gas header 3rd educated.
  • Additional triangular areas 11 are on both sides of the triangular area 10 horizontally arranged distribution channels.
  • the triangular areas 11 are on the one hand by the top of the heat exchanger block 1 a between the Gas header 3 and the outer edge 12 of the parallel to the gas header 3 Blocks 1 a and the other limited by a leg of the triangle 10.
  • the third Side results from the connection of the outer edge 12 with the tip of the triangle 10.
  • the upper and lower halves of the heat exchanger blocks 1a, 1b, 2a, 2b are constructed mirror-symmetrically to each other.
  • the gaseous nitrogen is fed to the bath condenser via the gas header 3 and distributed to the heat exchanger blocks 1 a, 1 b, 2a, 2b.
  • the nitrogen first flows in the vertical channels of the triangular one Area 10 down and is then diverted into the horizontal passages 11.
  • the distribution of the nitrogen into the is via these horizontal passages 11 actual liquefaction passages 9.
  • the nitrogen enters into heat exchange with the counter-flowing oxygen in the evaporation passages 13 (see FIG. 4), is cooled and liquefied.
  • the liquid nitrogen leaves the passages 9 via the Distribution channels 11 and 10 and the lower liquid header 4th
  • the evaporation passages 13 of the heat exchanger block 1 a for the liquid Oxygen is again shown as an example in FIG. 4.
  • the heat exchanger blocks 1a, 1b, 2a and 2b are also identical with regard to the evaporation passages 13 built up.
  • the majority of the evaporation passages 13 run straight through the Heat exchanger block 1a and is open at the top and bottom against the surrounding Space, for example against the rectification column in which the bath condenser is located located.
  • In the central area 14 of the heat exchanger block 1 a is a straight line Evaporation passages not possible because the upper and lower End face of the block 1a of the gas header 3 and the liquid header 4 are covered.
  • the liquid oxygen enters the vertical channels 13 from below during operation.
  • the channels 13 meet the two in the central region of the heat exchanger block 1a triangular areas 15.
  • the liquid oxygen is through the horizontal passages 15 deflected inwards, then in the vertical passages 14 upwards stream.
  • At least oxygen becomes indirect heat exchange with nitrogen partially evaporated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation By Low-Temperature Treatments (AREA)
EP03000424A 2002-12-11 2003-01-10 Echangeur de chaleur Withdrawn EP1429098A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10257916 2002-12-11
DE10257916A DE10257916A1 (de) 2002-12-11 2002-12-11 Wärmetauscher

Publications (1)

Publication Number Publication Date
EP1429098A1 true EP1429098A1 (fr) 2004-06-16

Family

ID=32319055

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03000424A Withdrawn EP1429098A1 (fr) 2002-12-11 2003-01-10 Echangeur de chaleur

Country Status (2)

Country Link
EP (1) EP1429098A1 (fr)
DE (1) DE10257916A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003535301A (ja) * 2000-05-31 2003-11-25 リンデ アクチエンゲゼルシヤフト 多段浴凝縮器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014215438A1 (de) 2014-08-05 2016-02-11 Basf Se Kolonne zur thermischen Behandlung von fluiden Gemischen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1152432B (de) * 1962-04-21 1963-08-08 Linde Eismasch Ag Platten-Kondensator-Verdampfer, insbesondere fuer Gas- und Luftzerleger
FR2431103A1 (fr) * 1978-07-12 1980-02-08 Air Liquide Colonne de separation de melanges gazeux par fractionnement a basse temperature
JPS63187085A (ja) * 1987-01-27 1988-08-02 日本酸素株式会社 プレ−トフイン式凝縮器
JPH0297885A (ja) * 1988-10-04 1990-04-10 Nippon Sanso Kk 凝縮蒸発器
JPH0534082A (ja) * 1991-07-29 1993-02-09 Nippon Sanso Kk 凝縮蒸発器
FR2793548A1 (fr) * 2000-07-21 2000-11-17 Air Liquide Vaporiseur-condenseur a plaques fonctionnant en thermosiphon, et double colonne de distillation d'air comportant un tel vaporiseur-condenseur

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1152432B (de) * 1962-04-21 1963-08-08 Linde Eismasch Ag Platten-Kondensator-Verdampfer, insbesondere fuer Gas- und Luftzerleger
FR2431103A1 (fr) * 1978-07-12 1980-02-08 Air Liquide Colonne de separation de melanges gazeux par fractionnement a basse temperature
JPS63187085A (ja) * 1987-01-27 1988-08-02 日本酸素株式会社 プレ−トフイン式凝縮器
JPH0297885A (ja) * 1988-10-04 1990-04-10 Nippon Sanso Kk 凝縮蒸発器
JPH0534082A (ja) * 1991-07-29 1993-02-09 Nippon Sanso Kk 凝縮蒸発器
FR2793548A1 (fr) * 2000-07-21 2000-11-17 Air Liquide Vaporiseur-condenseur a plaques fonctionnant en thermosiphon, et double colonne de distillation d'air comportant un tel vaporiseur-condenseur

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 199519, Derwent World Patents Index; AN 1995-145490, XP002247415 *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 305 (M - 0992) 29 June 1990 (1990-06-29) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 322 (M - 1432) 18 June 1993 (1993-06-18) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003535301A (ja) * 2000-05-31 2003-11-25 リンデ アクチエンゲゼルシヤフト 多段浴凝縮器

Also Published As

Publication number Publication date
DE10257916A1 (de) 2004-06-24

Similar Documents

Publication Publication Date Title
EP1287302B1 (fr) Condenseur a bain a plusieurs etages
DE19904526B4 (de) Luftdestillationsanlage und zugehörige Kältebox
DE69203111T2 (de) Siedeverfahren und Wärmetauscher zur Verwendung in diesem Verfahren.
EP1287303A2 (fr) Condenseur a bain a plusieurs etages
DE60124506T2 (de) Vorrichtung und verfahren zur produktgasverflüssigung im kleinmassstab
DE2232386C3 (de) Vorrichtung zur Kältetrocknung von Gas, insbesondere Luft
DE19605500C1 (de) Vorrichtung und Verfahren zum Verdampfen einer Flüssigkeit
DE2111026B1 (de) Kondensator-Plattenwaermetauscher
DE69922135T2 (de) Strukturierte Packung mit unterschiedlichem Widerstand
DE102012004900A1 (de) Vorrichtung zur Kühlung und/oder zur Wärmerückgewinnung
EP2472211A2 (fr) Dispositif de répartition et dispositif d'échangeur de chaleur
EP0394718B1 (fr) Chicane de ruissellement
EP0607887B2 (fr) Dispositif pour la séparation d'air à basse température
DE69933202T2 (de) Fallfilm-Verdampfer als Kondensationsverdampfer
DE60110328T2 (de) Wärmetauscher mit mehrfachen Wärmeaustauschblöcken mit Flüssigkeitsendkammer mit gleichmässiger Verteilung und Verdampfer-Kondensator mit demselben
DE3107151C2 (de) Anlage zum Verflüssigen und Zerlegen von Luft
DE2146869C3 (de) Wärmetauscher für Gase
DE69102164T2 (de) Wärmeaustauschvorrichtung, insbesondere für hybride, nichtazeotrope Arbeitsmedien verwendende Wärmepumpen.
DE1949609B2 (de) Kondensatorverdampfer fuer einen doppelsaeulenrektifikator
DE19905060A1 (de) Kondensator mit gelöteten Platten und dessen Anwendung bei Luftdestillationsdoppelsäulen
EP1429098A1 (fr) Echangeur de chaleur
EP3159648B1 (fr) Évaporateur-condensateur-échangeur thermique à plaques et procédé cryogénique de séparation d'air
EP1077356A1 (fr) Condenseur à circulation multiétagé
DE10137103A1 (de) Mehrstöckiger Kondensator-Verdampfer
DE10016080A1 (de) Kondensator

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

17P Request for examination filed

Effective date: 20041124

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: LINDE AKTIENGESELLSCHAFT

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: LINDE AG

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100803