EP0245582A1 - Echangeur de chaleur pour des gaz sous pression surélevée - Google Patents

Echangeur de chaleur pour des gaz sous pression surélevée Download PDF

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Publication number
EP0245582A1
EP0245582A1 EP87100959A EP87100959A EP0245582A1 EP 0245582 A1 EP0245582 A1 EP 0245582A1 EP 87100959 A EP87100959 A EP 87100959A EP 87100959 A EP87100959 A EP 87100959A EP 0245582 A1 EP0245582 A1 EP 0245582A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
pressure vessel
cables
exchanger according
trains
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
Application number
EP87100959A
Other languages
German (de)
English (en)
Other versions
EP0245582B1 (fr
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/fr
Application granted granted Critical
Publication of EP0245582B1 publication Critical patent/EP0245582B1/fr
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 during the gasification of fuels, in which heat exchanger trains through which the gas flows successively are arranged.
  • Such a heat exchanger is known from DE-PS 29 33 716.
  • the heat exchanger trains are formed from concentrically arranged tube walls, which are preceded by the gasification device, and wherein the 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 in the event of damage, and moreover to accommodate a maximum of heat exchanger surfaces in a confined space.
  • the heat exchanger trains are designed as essentially identical structural units, with rising and falling or vice versa heat exchanger trains being connected to one another by deflecting structures and each heat exchanger train being detachable and separately removable from the pressure vessel.
  • 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, after loosening the fastening in the pressure vessel, can be removed independently of the other heat exchanger trains. 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 stretch downwards, ie fixed bearings are provided in the upper part of the pressure vessel.
  • the deflecting construction connecting two adjacent heat exchanger cables is designed as a detachable hood in a tubular construction.
  • 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.
  • a dust separator arranged outside the pressure vessel can be interposed between rising and falling or vice versa.
  • 1, 1 denotes the pressure vessel, the upper part 2 of which can be detached and removed by means of the flange connection 3.
  • 4 is a manhole at the top of the pressure vessel.
  • heat exchanger cables I and II 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.
  • tube bundles 6 are arranged.
  • 7 a sootblower system is indicated, with 8 and 9 downpipes and risers.
  • the heat exchanger cables I and II are suspended from fixed bearings 10 in the pressure vessel 1 and can thus expand downwards where guide bearings 11 are provided.
  • a hood 12 connecting these cables is arranged, which is also designed as a tubular construction with a water supply line indicated at 13.
  • the heat exchanger train I is rising, the heat exchanger train II falling from the hot gases, with a deflection of the gas flow taking place in the hood 12.
  • the sockets take pipe constructions 16 and 17 with supply and discharge lines 18, 19 in the area of the flange connections 2o 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 one is heated relative movement is possible.
  • the stuffing packs indicated with 22 ensure an effective seal at the connection point.
  • the upper part 2 of the pressure vessel must first be removed after loosening the flange connection 3. Then the hood 12 is released from the associated heat exchanger cables and removed upward from the pressure vessel. After loosening the defective heat exchanger cable from the fixed bearings 1o 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. Then an intact heat exchanger cable can then be inserted into the pressure vessel, the work steps described above being carried out in the same order.
  • the tube bundles 6 of a heat exchanger train have a defect, they can be pulled out of the square tube wall 5 after removing part 2 of the pressure vessel and hood 12. In this case, the tube wall 5 remains in its position in the pressure vessel 1.
  • the arrangement of the heat exchanger cables I and II in the pressure vessel 1 is the same as described with reference to FIG. 1.
  • the gas flow is different.
  • the nozzle 14 and 15 for the gas inlet and outlet at the upper part 2 of the pressure vessel 1 are attached arranges, so that first the heat exchanger train II is falling and after deflection of the gases at the lower end then the heat exchanger train I is acted on in an increasing manner.
  • a funnel 23 formed from a tubular structure is attached to the lower ends of the heat exchanger cables, which has an enlarged flow cross section and which serves to collect the dust separated from the gas stream during the deflection and the speed reduction of the gas.
  • the outlet 24 of the funnel which is subdivided to compensate for thermal expansions, is led out of the pressure vessel through the nozzle 25 at the bottom.
  • the lower part 33 of the pressure vessel 1 can be removed by means of the flange connection 34.
  • the heat exchanger according to FIG. 3 shows essentially the same structure as that according to FIG. 1.
  • 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 a dust separator 3o arranged outside the pressure vessel are attached.
  • the gas flow in the lines 28, 29 takes place here by means of pipe constructions 31 and 32 inserted therein.
  • the interposition of the dust separator 3o 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.
  • FIG. 4 shows a horizontal section through the heat exchanger according to the embodiments according to FIGS. 1-3, 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 I and II and the pair III and IV, which are acted upon independently of one another and by separate gas streams.
  • FIG. 5 makes it particularly clear how the heat exchanger according to the invention is designed to save space and to take advantage of the interior of the pressure vessel.
EP87100959A 1986-05-10 1987-01-23 Echangeur de chaleur pour des gaz sous pression surélevée Expired - Lifetime EP0245582B1 (fr)

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 true EP0245582A1 (fr) 1987-11-19
EP0245582B1 EP0245582B1 (fr) 1990-01-03

Family

ID=6300615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87100959A Expired - Lifetime EP0245582B1 (fr) 1986-05-10 1987-01-23 Echangeur de chaleur pour des gaz sous pression surélevée

Country Status (7)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009070129A2 (fr) * 2007-11-30 2009-06-04 Evrovartrade D.O.O. Échangeur de chaleur à condensation combiné

Families Citing this family (7)

* 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 (fr) * 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
CA2902369C (fr) * 2013-02-26 2018-11-06 T5 Technologies, Inc. Procede et systeme d'elimination in-situ de depots carbones de faisceaux de tubes d'echangeur de chaleur
US9134064B2 (en) 2013-10-04 2015-09-15 Aggreko, Llc Process vessel cooldown apparatus and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1332084A (fr) * 1963-12-16
FR2209088A1 (en) * 1972-09-13 1974-06-28 Beth Gmbh Maschf Exhaust gas cooler - with expansion relief for cooling pipes
US4253516A (en) * 1978-06-22 1981-03-03 Westinghouse Electric Corp. Modular heat exchanger
DE2933716A1 (de) 1979-08-21 1981-03-26 Deutsche Babcock AG, 46049 Oberhausen Vorrichtung zur vergasung von feinkoerniger kohle
EP0046600A1 (fr) * 1980-08-26 1982-03-03 Bronswerk Ketel- en Apparatenbouw B.V. Echangeur de chaleur pour un gaz et un liquide

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
SE7317418L (fr) * 1973-12-21 1975-06-23 Svenska Maskinverken Ab
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1332084A (fr) * 1963-12-16
FR2209088A1 (en) * 1972-09-13 1974-06-28 Beth Gmbh Maschf Exhaust gas cooler - with expansion relief for cooling pipes
US4253516A (en) * 1978-06-22 1981-03-03 Westinghouse Electric Corp. Modular heat exchanger
DE2933716A1 (de) 1979-08-21 1981-03-26 Deutsche Babcock AG, 46049 Oberhausen Vorrichtung zur vergasung von feinkoerniger kohle
EP0046600A1 (fr) * 1980-08-26 1982-03-03 Bronswerk Ketel- en Apparatenbouw B.V. Echangeur de chaleur pour un gaz et un liquide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009070129A2 (fr) * 2007-11-30 2009-06-04 Evrovartrade D.O.O. Échangeur de chaleur à condensation combiné
WO2009070129A3 (fr) * 2007-11-30 2009-07-16 Evrovartrade D O O Échangeur de chaleur à condensation combiné

Also Published As

Publication number Publication date
ES2012461B3 (es) 1990-04-01
US4807698A (en) 1989-02-28
EP0245582B1 (fr) 1990-01-03
ZA87835B (en) 1987-07-30
GR3000328T3 (en) 1991-06-07
TR23654A (tr) 1990-05-29
DE3615877A1 (de) 1987-11-12
DE3761339D1 (de) 1990-02-08

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