EP0245582B1 - Wärmetauscher für unter erhöhtem Druck stehende Gase - Google Patents

Wärmetauscher für unter erhöhtem Druck stehende Gase Download PDF

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Publication number
EP0245582B1
EP0245582B1 EP87100959A EP87100959A EP0245582B1 EP 0245582 B1 EP0245582 B1 EP 0245582B1 EP 87100959 A EP87100959 A EP 87100959A EP 87100959 A EP87100959 A EP 87100959A EP 0245582 B1 EP0245582 B1 EP 0245582B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
pressure vessel
passes
exchanger passes
tube
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.)
Expired - Lifetime
Application number
EP87100959A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0245582A1 (de
Inventor
Klaus Dipl.-Ing. Köhnen
Hans Ing. Grad. Niermann
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.)
Krupp Koppers GmbH
Original Assignee
Krupp Koppers 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 Krupp Koppers GmbH filed Critical Krupp Koppers GmbH
Publication of EP0245582A1 publication Critical patent/EP0245582A1/de
Application granted granted Critical
Publication of EP0245582B1 publication Critical patent/EP0245582B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • 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
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F28D7/0083—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium
    • 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
    • F28D7/16—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 arranged in parallel spaced relation
    • F28D7/163—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 arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
    • F28D7/1653—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 arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing the conduit assemblies having a square or rectangular shape
    • F28D7/1661—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 arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing the conduit assemblies having a square or rectangular shape with particular pattern of flow of the heat exchange media, e.g. change of flow direction
    • 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
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • 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
    • F28D2021/0075—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for syngas or cracked gas cooling systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/355—Heat exchange having separate flow passage for two distinct fluids
    • Y10S165/40—Shell enclosed conduit assembly
    • Y10S165/401—Shell enclosed conduit assembly including tube support or shell-side flow director
    • Y10S165/404—Serially connected separate shells

Definitions

  • the invention relates to a heat exchanger for gases under increased pressure, in particular those produced in the gasification of fuels, in which heat exchanger passages through which gas flows successively are arranged, each consisting of a tube wall enclosing the gas path and tube bundles located within the same, the heat exchanger tubes are constructed as essentially identical units and are connected to one another by means of deflecting constructions with rising and falling or vice versa.
  • a heat exchanger is known, in which the heat exchanger trains are formed from concentrically arranged tube walls, which are preceded by the gasification device, and wherein heat exchanger trains and gasification device are accommodated in a common pressure vessel.
  • a disadvantage of this known arrangement is that if the heat exchanger cables are damaged, they are difficult to access and repairs can essentially only be carried out within the pressure vessel. In addition to the difficulties for the personnel commissioned with the repair work, the entire system is shut down for a longer period of time in the event of a repair.
  • the invention is therefore based on the object of designing the generic heat exchanger in such a way that rapid and unproblematic repair is possible when damage occurs and at the same time a maximum of heat exchanger surfaces can be accommodated in the smallest space.
  • a heat exchanger of the type mentioned at the outset which according to the invention is characterized in that both each heat exchanger train (for example I, 11) can be detached and removed separately from the pressure vessel, and also the tube bundle associated with a heat exchanger train while the tube wall remains in the pressure vessel can be removed from the tube wall and that a dust separator arranged outside the pressure vessel is interposed between rising and falling or vice versa.
  • the heat exchanger according to the invention can have two or more heat exchanger trains, which can be arranged in the pressure vessel comparatively close to one another and thus be space-saving. If damage now occurs to a heat exchanger train, it can be separated from the heat exchanger train (s) connected to it and can be removed independently of the other heat exchanger trains after loosening the fastening in the pressure vessel. An intact heat exchanger cable can then be inserted into the pressure vessel and mounted in its working position immediately afterwards. The required downtime for this change of the heat exchanger trains only takes a short time, as can be easily seen.
  • the invention further provides that the upper part of the pressure vessel can be removed by means of a flange connection. It is also advantageous for this if the heat exchanger cables are suspended in the pressure vessel according to a further feature of the invention and expand downwards, i.e. Fixed bearings are provided in the upper part of the pressure vessel.
  • gas inlets and outlets of the heat exchanger cables passing through the pressure vessel are designed as separate heat exchanger systems in tubular construction, which are connected to the heat exchanger cables via a sealing device which permits relative movement.
  • FIG. 1 and 2 show one and the same heat exchanger, which is why both figures are treated together in the following description.
  • the illustration in FIG. 1 illustrates in particular the arrangement of the dust separator above the heat exchanger, while FIG. 2 in particular reveals its design in the lower region.
  • two heat exchanger cables I and 11 are arranged within the pressure vessel 1 and are constructed as essentially identical structural units.
  • Each of these heat exchanger cables has a tube wall 5 - in the present case in a square shape - in the interior of which tube bundles 6 are arranged.
  • a sootblower system is indicated, with 8 and 9 downpipes and risers.
  • the upper part 2 of the pressure vessel 1 can be detached and removed by means of the flange connection 3.
  • the illustration in Fig. 1 ends just below the Flange connection 3, while the illustration in FIG. 2 extends up to the flange connection 3.
  • the heat exchanger cables and II are suspended from fixed bearings 10 in the pressure vessel 1 and can thus expand downwards where guide bearings 11 are provided.
  • the heat exchanger train I is rising, the heat exchanger train 11 falling from the hot gases, the gas flow being deflected in the hood 12.
  • For the gas inlet and outlet 1 nozzle 14 and 15 are attached to the lower end of the pressure vessel.
  • the sockets take pipe constructions 16 and 17 with supply and discharge lines 18, 19 in the area of the flange connections 20 and 21.
  • the pipe structures 16 and 17 through which the gases flow are inserted into the pipe walls 5 of the two heat exchanger cables in such a way that a relative movement caused by thermal expansion is possible.
  • the gland packings indicated with 22 ensure an effective seal at the connection point.
  • an additional gas inlet and outlet is arranged in the upper part 2 of the pressure vessel 1.
  • connecting pieces 26 and 27 are provided, to which supply and discharge lines 28, 29 to and from which dust separator 30 arranged outside the pressure vessel are attached.
  • the gas flow in the lines 28, 29 takes place here through pipe constructions 31 and 32 inserted therein.
  • the interposition of the dust separator 30, which can be designed as a cyclone, has the advantage that the dust is no longer passed through the heat exchanger train II.
  • the flying dust is at a comparatively high temperature level, which has an advantageous effect when the flying dust is returned to the reaction space of a gasification system connected to the heat exchanger.
  • the upper part 2 of the pressure vessel 1 must first be removed after loosening the flange connection 3 and the connections to the lines 28 and 29. After loosening the defective heat exchanger cable from the fixed bearings 10 and after separating the downpipes and risers 8 and 9 and the supply line of the sootblower system 7, the heat exchanger cable can now be pulled out of the pressure vessel. Subsequently, an intact heat exchanger cable can then be inserted into the pressure vessel 1, the work steps described above taking place in a corresponding sequence.
  • the tube bundles 6 of a heat exchanger train have a defect, they can be pulled out of the square tube wall 5 directly after removing part 2 of the pressure vessel 1. In this case, the tube wall 5 remains in its position in the pressure vessel 1.
  • Fig. 3 shows a horizontal section through the heat exchanger according to FIGS. 1 and 2, in which the heat exchanger cables I and II are arranged in the pressure vessel 1.
  • heat exchanger cables I, II, III and IV are provided in the pressure vessel 1. It is possible to let the gas flow pass through the four heat exchanger trains one after the other. However, it is also possible to form two pairs of heat exchanger trains, namely the pair and II and the pair III and IV, which are acted upon independently of one another and by separate gas streams.
  • FIG. 4 makes it particularly clear how space-saving and how advantageously the interior of the pressure vessel is designed for the heat exchanger according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP87100959A 1986-05-10 1987-01-23 Wärmetauscher für unter erhöhtem Druck stehende Gase Expired - Lifetime EP0245582B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863615877 DE3615877A1 (de) 1986-05-10 1986-05-10 Waermetauscher fuer unter erhoehtem druck stehende gase
DE3615877 1986-05-10

Publications (2)

Publication Number Publication Date
EP0245582A1 EP0245582A1 (de) 1987-11-19
EP0245582B1 true EP0245582B1 (de) 1990-01-03

Family

ID=6300615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87100959A Expired - Lifetime EP0245582B1 (de) 1986-05-10 1987-01-23 Wärmetauscher für unter erhöhtem Druck stehende Gase

Country Status (7)

Country Link
US (1) US4807698A (es)
EP (1) EP0245582B1 (es)
DE (2) DE3615877A1 (es)
ES (1) ES2012461B3 (es)
GR (1) GR3000328T3 (es)
TR (1) TR23654A (es)
ZA (1) ZA87835B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3734216C1 (de) * 1987-10-09 1988-12-08 Schmidt Sche Heissdampf Waermetauscheranlage
CH676603A5 (es) * 1988-10-26 1991-02-15 Sulzer Ag
FR2670877B1 (fr) * 1990-12-21 1996-09-13 Packinox Sa Echangeur a plaques dispose a l'interieur d'une enceinte de resistance en pression.
US6106789A (en) * 1993-12-30 2000-08-22 Phillips Petroleum Company Alkylation reactor with internal acid cooling zones
JPH10206067A (ja) * 1997-01-27 1998-08-07 Honda Motor Co Ltd 熱交換器の支持構造
SI22691A (sl) * 2007-11-30 2009-06-30 Evrovartrade D.O.O. Kombinirani kondenzacijski toplotni izmenjevalec
WO2014131121A1 (en) * 2013-02-26 2014-09-04 T5 Technologies, Inc. Method and system for the in-situ removal of carbonaceous deposits from heat exchanger tube bundles
US9134064B2 (en) 2013-10-04 2015-09-15 Aggreko, Llc Process vessel cooldown apparatus and method

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1332084A (es) * 1963-12-16
US2057437A (en) * 1932-04-13 1936-10-13 Charles H Leach Bubble tower apparatus
US2071277A (en) * 1935-09-28 1937-02-16 Alco Products Inc Heat exchanger
US2199216A (en) * 1937-12-22 1940-04-30 Conti Piero Ginori Vaporizer
US3814062A (en) * 1972-05-27 1974-06-04 Siegener Ag Waste heat boiler with boiler walls and wall portions of finned pipes
FR2209088A1 (en) * 1972-09-13 1974-06-28 Beth Gmbh Maschf Exhaust gas cooler - with expansion relief for cooling pipes
SE7317418L (es) * 1973-12-21 1975-06-23 Svenska Maskinverken Ab
US4253516A (en) * 1978-06-22 1981-03-03 Westinghouse Electric Corp. Modular heat exchanger
DE2933716C2 (de) 1979-08-21 1985-06-13 Deutsche Babcock Ag, 4200 Oberhausen Mit einer Dampferzeugungsanlage versehener Gasgenerator
NL8004805A (nl) * 1980-08-26 1982-04-01 Bronswerk Ketel Apparatenbouw Warmtewisselaar voor een gasvormig en een vloeibaar medium.
FR2565338B1 (fr) * 1984-06-05 1988-10-07 Stein Industrie Panneau d'echange de chaleur a tubes verticaux, pour chaudieres de recuperation telles que chaudieres a liqueur noire, ou sur fours d'incineration d'ordures menageres, et procedes pour sa fabrication

Also Published As

Publication number Publication date
ZA87835B (en) 1987-07-30
TR23654A (tr) 1990-05-29
ES2012461B3 (es) 1990-04-01
US4807698A (en) 1989-02-28
DE3615877A1 (de) 1987-11-12
DE3761339D1 (de) 1990-02-08
GR3000328T3 (en) 1991-06-07
EP0245582A1 (de) 1987-11-19

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