EP1367351B1 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

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Publication number
EP1367351B1
EP1367351B1 EP03009456A EP03009456A EP1367351B1 EP 1367351 B1 EP1367351 B1 EP 1367351B1 EP 03009456 A EP03009456 A EP 03009456A EP 03009456 A EP03009456 A EP 03009456A EP 1367351 B1 EP1367351 B1 EP 1367351B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
chamber
cooling medium
tubes
heat
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
EP03009456A
Other languages
German (de)
English (en)
Other versions
EP1367351A1 (fr
Inventor
Hermann Göhna
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.)
Air Liquide Global E&C Solutions Germany GmbH
Original Assignee
Lurgi 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 Lurgi GmbH filed Critical Lurgi GmbH
Publication of EP1367351A1 publication Critical patent/EP1367351A1/fr
Application granted granted Critical
Publication of EP1367351B1 publication Critical patent/EP1367351B1/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
    • 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
    • F28D7/1607—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 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
    • 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
    • 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
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • 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
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
    • F28F2009/224—Longitudinal partitions
    • 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
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
    • F28F2009/226—Transversal partitions

Definitions

  • the invention relates to a heat exchanger with a cylindrical steel shell and two hemispherical head pieces, in which hot medium flows in the longitudinal axis through the heat exchanger and is cooled by a cooling medium, which is laterally in the heat exchanger and discharged.
  • heat exchangers are used to recover heat or to selectively cool or heat a medium, which may be gaseous or liquid.
  • a shell-and-tube heat exchanger is used to cool hot fission gases from a partial oxidation. These fission gases are to be cooled from 520 ° C. to 350 ° C., at the same time preheating gaseous process mixture (or in other cases steam) from about 200 ° C. to 420 ° C. These fission gases have a high potential for " metal dusting", a process which leads to the destruction of the metallic materials, if the metal temperatures on the cracked gas side become too high.
  • metal dusting is meant a high-temperature corrosion, which usually takes place in highly carburizing gas atmospheres and leads to the removal and thus destruction of the metallic material. As ablation products, metal, metal oxide, carbon and metal carbides are typically found. If the heat exchanger described were carried out in a countercurrent apparatus, the heat exchanger tubes and the tube plates would be on the hot side in the temperature range of “metal dusting". By a DC heat exchanger, the required preheating temperature can not be achieved due to overlap.
  • the present invention seeks to develop a heat exchanger that allows a high temperature balance between the media, while it is inexpensive to manufacture and the thermal and chemical stresses is justified, and has a high resistance to high temperature corrosion.
  • the object is achieved in that the heat exchanger consists of a cylindrical steel shell and two hemispherical head pieces, wherein a first distribution chamber is connected by means of tubes for the passage of hot medium with a second distribution chamber, wherein the tubes penetrate an inlet region of the cooling medium and an outer chamber in that lateral stubs guide the cooling medium into the inlet region, followed by an inner chamber delimited by a sealing plate for the flow deflection of the cooling medium, in that the sealing plate directs the cooling medium from the inner chamber into an outer chamber, wherein the outer chamber surrounds the inner chamber, and this outer chamber is provided with nozzles for the discharge of the cooling medium.
  • the insulation of the separating wall between inner chamber and outer chamber has the effect that the cooling medium on the hot side does not undergo cooling.
  • the pipes are welded.
  • the inlet area is thermally isolated from the distribution chamber by a thermally insulating mass. Through this heat-insulating material are inserted into the bottom of the distribution chamber Einsteckrohre, which receive the cooling tubes.
  • a further embodiment of the invention provides that the heat-insulating mass is catalytically active.
  • creepage currents are continuously catalytically converted by cracks in the lining during the continuous cooling, whereby no "metal dusting" reaction can take place.
  • the inner parts of the heat exchanger are designed in floating head construction. That is, the components that are exposed to a large thermal expansion, are stored only on one side. The other side is freely movable in the longitudinal direction.
  • the outlet of the hot medium is equipped with a compensator.
  • the introduced hot media can be gases or liquids. They are introduced at a temperature of 150 ° C to 550 ° C in the heat exchanger and discharged in a temperature range of 400 ° C to 50 ° C.
  • the cooling medium usually consists of gases, vapors or liquids and is introduced at 30 ° C to 350 ° C. After heat transfer, the cooling medium heats up to 450 ° C.
  • the heat exchanger (1) consists of a cylindrical steel jacket (13) with hemispherical head pieces (21, 15).
  • Hot medium (2) flows through an inlet port (4) into a distribution chamber (5) and flows through a plurality of tubes (6), which are arranged parallel to the longitudinal axis of the heat exchanger (1), into a second one Distribution chamber (7) and is discharged there via the outlet port (8).
  • Cooling medium (3) is introduced through lateral nozzles (9) in the heat exchanger (1).
  • the cooling medium (3) is introduced into an inlet region (10), which is adjoined by the inner chamber (11) of the heat exchanger (1).
  • the inner chamber (11) is substantially smaller in diameter than the inlet portion (10) because it is surrounded by an outer chamber (12) bounded outwardly by the steel jacket (13) of the heat exchanger and inwardly by a wall (14) is separated from the inner chamber (11). This wall (14) is carried out in isolation.
  • the tubes (6) penetrate after the distribution chamber (5) first the inlet region (10), then the outer chamber (12) and terminate in the second distribution chamber (7).
  • the cooling medium (3) flows through the inner chamber (11) and impinges on a sealing plate (16), which separates the cooling medium (3) from the medium to be cooled (2) in the distribution chamber (7). At this sealing plate (16), the cooling medium (3) is deflected in the direction and thereby guided into the outer chamber (12) of the heat exchanger (1).
  • sheets (17) provide for a deflection of the cooling medium (3).
  • the cooling medium (3) flows around the tubes (6) of the hot medium in countercurrent.
  • the cooling medium (3) is thereby guided in its flow direction by sheets (17) so that it alternately flows against the cylindrical steel jacket (13) and the separating wall (14) of the inner chamber (11).
  • the cooling medium leaves the heat exchanger (1).
  • the sheets (17) in addition to the deflection of the flow for increased stability and guidance of the tubes (6).
  • the cooling medium (3) flows from the inlet region (10) to the inner chamber (11) in the same direction with the introduced hot medium (2), which flows through the tubes (6) in this area.
  • the cooling medium (3) With deflection of the cooling medium through the sealing plate (16) in the outer chamber (12) of the heat exchanger (1), the cooling medium (3) flows against the flow direction of the hot medium (2).
  • a compensator (19) is attached to the outlet port (8).
  • the internal fittings are designed in floating design.
  • the heat exchanger is made of heat-resistant steel. Depending on the media, a corrosion-resistant material can also be used.
  • the insulation of the wall (14) consists of ceramic or mineral fibers, which are surrounded by a protective jacket.
  • the hemispherical head pieces (21, 15) of the heat exchanger (1) are insulated with ramming mass.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Claims (8)

  1. Echangeur de chaleur, comprenant une enveloppe d'acier (13) cylindrique et deux têtes (21, 15) de forme hémisphérique, comprenant une première chambre de distribution (5) qui communique avec une deuxième chambre de distribution (7) au moyen de tubes (22, 6) destinés à la circulation d'un fluide chaud (2), les tubes (6) traversant une zone d'admission (10) du fluide de refroidissement (3) et une chambre extérieure (12), caractérisé en ce que des tubulures latérales (9) conduisent le fluide de refroidissement (3) dans la zone d'admission (10) à laquelle succède une chambre intérieure (11) qui est délimitée par une plaque étanche (16) destinée à inverser la circulation du fluide de refroidissement (3), en ce que la plaque étanche (16) conduit le fluide de refroidissement (3) de la chambre intérieure (11) dans une chambre extérieure (12), la chambre extérieure (12) entourant la chambre intérieure (11), et en ce que cette chambre extérieure (12) est pourvue de tubulures (18) destinées à l'évacuation du fluide de refroidissement (3).
  2. Echangeur de chaleur selon la revendication 1, caractérisé en ce que la séparation de la chambre intérieure (11) de la chambre extérieure (12) est réalisée par une paroi thermoisolante (14).
  3. Echangeur de chaleur selon la revendication 1, caractérisé en ce que dans la chambre extérieure (12), la circulation du fluide de refroidissement (3) est déviée par des tôles (17).
  4. Echangeur de chaleur selon la revendication 1, caractérisé en ce que la zone d'admission (10) est isolée de la chambre de distribution (5) par une masse thermoisolante (20).
  5. Echangeur de chaleur selon la revendication 4, caractérisé en ce que la masse thermoisolante (20) est catalytiquement active.
  6. Echangeur de chaleur selon la revendication 4, caractérisé en ce que dans la zone de la masse thermoisolante (20), des tubes d'emboîtement (22) sont mis en place, lesquels reçoivent les tubes (6).
  7. Echangeur de chaleur selon la revendication 1, caractérisé en ce que l'échangeur de chaleur est réalisé selon le type de construction à tête flottante.
  8. Echangeur de chaleur selon la revendication 1, caractérisé en ce que la tubulure d'échappement (8) de l'échangeur de chaleur présente un compensateur (19).
EP03009456A 2002-05-29 2003-04-25 Echangeur de chaleur Expired - Lifetime EP1367351B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10223788 2002-05-29
DE10223788A DE10223788C1 (de) 2002-05-29 2002-05-29 Wärmetauscher

Publications (2)

Publication Number Publication Date
EP1367351A1 EP1367351A1 (fr) 2003-12-03
EP1367351B1 true EP1367351B1 (fr) 2006-11-15

Family

ID=7714589

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03009456A Expired - Lifetime EP1367351B1 (fr) 2002-05-29 2003-04-25 Echangeur de chaleur

Country Status (5)

Country Link
US (1) US7131489B2 (fr)
EP (1) EP1367351B1 (fr)
KR (1) KR100961597B1 (fr)
AT (1) ATE345481T1 (fr)
DE (2) DE10223788C1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1825206A1 (fr) * 2004-11-29 2007-08-29 AB K A Ekström&Son Prechauffeur pour appareil destine a la production de noir de carbone
CA2703317A1 (fr) * 2010-05-06 2011-11-06 Aker Solutions Canada Inc. Echangeurs de chaleur a tubes et calandre
JP6088530B2 (ja) * 2011-10-10 2017-03-01 インテリホット グリーン テクノロジーズ，インコーポレイテッドＩｎｔｅｌｌｉｈｏｔ Ｇｒｅｅｎ Ｔｅｃｈｎｏｌｏｇｉｅｓ，Ｉｎｃ． ガス−水管複合ハイブリッド型熱交換器
JP6092650B2 (ja) * 2013-02-18 2017-03-08 三菱日立パワーシステムズ株式会社 熱交換器及びこれを備えたガスタービンプラント
DE102013003414B4 (de) 2013-02-28 2019-10-31 Webasto SE Wärmeübertrager
US10378826B2 (en) * 2016-10-14 2019-08-13 Colmac Coil Manufacturing, Inc. Heat Exchanger
ES2842423T3 (es) 2017-05-26 2021-07-14 Alfa Laval Olmi S P A Intercambiador de calor de carcasa y tubos
CN108195211B (zh) * 2017-12-27 2019-11-05 浙江赫德科技有限公司 一种化工用便于清洗型列管换热装置
CN108775825B (zh) * 2018-05-24 2021-05-04 重庆美的通用制冷设备有限公司 换热组件及具有其的制冷系统
CH716236A2 (de) * 2019-05-28 2020-11-30 Streiff Felix Rohrbündel-Wärmeübertrager mit Einbauelementen aus Umlenkflächen und Leitstegen.

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT278877B (de) * 1966-06-27 1970-02-10 Waagner Biro Ag Rohrbündelwärmeaustauscher
SU423371A1 (ru) * 1969-04-04 1981-03-30 Zemlyanoj I S Кожухотрубный конденсатор
SU494587A2 (ru) * 1973-05-04 1975-12-05 Предприятие П/Я Р-6956 Теплоомбенный аппарат змеевикового типа
US4204573A (en) * 1977-05-09 1980-05-27 Pvi Industries, Inc. Heat exchanger with concentric flow tubes
JPS55112992A (en) 1979-02-23 1980-09-01 Kawasaki Steel Corp Recuperator of heating furnace, etc.
JPS5677692A (en) * 1979-11-27 1981-06-26 Toyo Eng Corp Heat exchanger
JPS5677690A (en) * 1979-11-30 1981-06-26 Mitsubishi Heavy Ind Ltd Heat exchanger
DE3421746C2 (de) * 1984-06-12 1994-06-09 Apparatebau Wiesloch Gmbh Wärmeaustauscher
JPS61256194A (ja) 1985-05-07 1986-11-13 Asahi Glass Co Ltd セラミツクチユ−ブの接続構造
DE3643303A1 (de) * 1986-12-18 1988-06-30 Uhde Gmbh Vorrichtung zum waermetausch, insbesondere zwischen synthesegas- und kesselspeisewasser
DK0864830T3 (da) 1997-03-14 2002-02-04 Borsig Gmbh Varmeveksler med U-formede rør

Also Published As

Publication number Publication date
KR100961597B1 (ko) 2010-06-04
US20030226654A1 (en) 2003-12-11
ATE345481T1 (de) 2006-12-15
DE10223788C1 (de) 2003-06-18
KR20030093098A (ko) 2003-12-06
DE50305662D1 (de) 2006-12-28
US7131489B2 (en) 2006-11-07
EP1367351A1 (fr) 2003-12-03

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