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EP1331465A2 - Echangeur de chaleur à plaque tubulaire fine - Google Patents

Echangeur de chaleur à plaque tubulaire fine Download PDF

Info

Publication number
EP1331465A2
EP1331465A2 EP02028251A EP02028251A EP1331465A2 EP 1331465 A2 EP1331465 A2 EP 1331465A2 EP 02028251 A EP02028251 A EP 02028251A EP 02028251 A EP02028251 A EP 02028251A EP 1331465 A2 EP1331465 A2 EP 1331465A2
Authority
EP
European Patent Office
Prior art keywords
plate
tube
exchanger
nest
tubes
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
EP02028251A
Other languages
German (de)
English (en)
Other versions
EP1331465A3 (fr
EP1331465B9 (fr
EP1331465B1 (fr
Inventor
Adamo Gaetano Galatello
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.)
Alfa Laval Olmi SpA
Original Assignee
Olmi SpA
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 Olmi SpA filed Critical Olmi SpA
Publication of EP1331465A2 publication Critical patent/EP1331465A2/fr
Publication of EP1331465A3 publication Critical patent/EP1331465A3/fr
Application granted granted Critical
Publication of EP1331465B1 publication Critical patent/EP1331465B1/fr
Publication of EP1331465B9 publication Critical patent/EP1331465B9/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
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F28F9/182—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding the heat-exchange conduits having ends with a particular shape, e.g. deformed; the heat-exchange conduits or end plates having supplementary joining means, e.g. abutments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
    • F28F19/06—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of metal
    • 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
    • F28F9/0229—Double end plates; Single end plates with hollow spaces

Definitions

  • the present invention relates to a tube nest heat exchanger with shell under pressure and input tube plate of the thin type.
  • the sacrificial plate must however operate under particularly hostile conditions at for example input gas temperature to the exchanger capable of reaching 850-900°C and it is important that it not undergo abnormal deterioration since its unexpected loss of efficiency could compromise the underlying tube plate.
  • the general purpose of the present invention is to remedy the above mentioned shortcomings by making available an innovative tube plate structure in an exchanger which would allow unusual resistance and long duration of the tube plate avoiding the necessity of a sacrificial plate despite the thin tube plate.
  • a tube nest heat exchanger with shell under pressure and with an inlet tube plate separating the inside of the shell from an inlet manifold of the fluid to be cooled with the tube plate having passages in it for communication with the interior of the tubes of the tube nest characterized in that the tube plate has on the manifold side a hardening layer formed of a weld deposit and on the opposite side around each passage a projecting neck on which is welded at a distance from the plate surface a corresponding tube of the nest.
  • FIG. 10 shows diagrammatically a partially cross sectioned view of a tube nest heat exchanger indicated as a whole by reference number 10. Only in the inlet zone is it completely visible since the rest of the exchanger is virtually prior art and therefore readily imaginable by those skilled in the art.
  • the exchanger 10 has a shell under pressure 11 with inlet tube plate 12 separating the interior of the shell from a manifold 13 for inlet of fluid to be cooled.
  • the tube plate 12 has passages 14 in it for communication with the interior of tubes 15 forming the tube nest.
  • the tube plate has on the manifold side a hardening layer 16 made up of a welding deposit of material harder than the plate and on the opposite side a projecting neck 17 around each passage 14 on which a corresponding tube 15 of the nest is welded at a distance from the internal surface of the plate.
  • the plate 12 is realized with a solid forged disk from which all the necks on which to weld the tubes are made by removal of material. Thus is obtained a very smooth surface.
  • the necks are sized in such a manner that the welding of the tube to the neck is located at a distance from the plate which is approximately equal to at least one-half of the thickness of the plate and advantageously equal to at least the thickness of the plate.
  • the tubes are welded to the necks by the system known as 'internal bore welding'.
  • the weld deposit 16 covering all the surface to be protected is created with material compatible with the tube plate and with the characteristics of high resistance to the impact of the coke particles and a thermal expansion such as to have acceptable stress between the two different layers of material.
  • the plate be made of steel lightly alloyed with molybdenum or chromo-molybdenum while the deposit is realized of nickel-chrome alloy (Alloy 625).
  • the deposit is used here as an anti-erosion layer.
  • the temperature of the plate is kept low by the cooling fluid inside the exchanger.
  • the welds of the tubes to the plate are not exposed to impact with the gases and are kept cool because they are immersed in water at a certain distance from the plate.
  • the completely smooth plate surface does not retain the deposits and, even with very dirty water and therefore with considerable deposits the welds are free from corrosion because they are in a zone far from the plate and not covered by the deposits.

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)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
EP02028251A 2002-01-24 2002-12-16 Echangeur de chaleur pour installation de production d'éthylène Expired - Lifetime EP1331465B9 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2002MI000118A ITMI20020118A1 (it) 2002-01-24 2002-01-24 Scambiatore di calore con piastra tubiera sottile con struttura perfezionata
ITMI20020118 2002-01-24

Publications (4)

Publication Number Publication Date
EP1331465A2 true EP1331465A2 (fr) 2003-07-30
EP1331465A3 EP1331465A3 (fr) 2006-07-05
EP1331465B1 EP1331465B1 (fr) 2012-02-01
EP1331465B9 EP1331465B9 (fr) 2012-08-01

Family

ID=11448969

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02028251A Expired - Lifetime EP1331465B9 (fr) 2002-01-24 2002-12-16 Echangeur de chaleur pour installation de production d'éthylène

Country Status (3)

Country Link
EP (1) EP1331465B9 (fr)
AT (1) ATE544045T1 (fr)
IT (1) ITMI20020118A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016170486A1 (fr) * 2015-04-24 2016-10-27 Hexsol Italy Srl Échangeur de chaleur
EP3376150A1 (fr) 2017-03-14 2018-09-19 ALFA LAVAL OLMI S.p.A. Dispositif de protection pour un équipement à faisceau tubulaire
IT201800004154A1 (it) * 2018-03-30 2019-09-30 Galatello Adamo Gaetano Scambiatore di calore a fascio tubiero tle privo di setti o diaframmi forati di supporto
CN111526938A (zh) * 2017-10-26 2020-08-11 阿法拉伐奥米有限公司 带有分配装置的壳管式设备
EP4134614A1 (fr) 2021-08-11 2023-02-15 Basell Polyolefine GmbH Échangeur de conduite de transfert avec revêtements par pulvérisation thermique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3392326A1 (fr) 2017-04-19 2018-10-24 Linde Aktiengesellschaft Procédé et installation de production d'une oléfine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3114415A (en) * 1957-02-15 1963-12-17 Allied Chem Shell and tube heat exchangers
US3367414A (en) * 1960-11-25 1968-02-06 Westinghouse Electric Corp Welded assembly
DE3022480A1 (de) * 1980-06-14 1982-01-07 Uhde Gmbh, 4600 Dortmund Vorrichtung zum waermetausch zwischen einen nh (pfeil abwaerts)3(pfeil abwaerts) -konverter verlassendem kreislaufgas und wasser
JPH0730213Y2 (ja) * 1988-11-17 1995-07-12 川崎重工業株式会社 熱交換器
JP2918099B2 (ja) * 1996-03-22 1999-07-12 川崎重工業株式会社 スチレンモノマー製造用の熱交換器
ITMI990549U1 (it) * 1999-09-08 2001-03-08 Olmi Spa Scambiatore di calore a fascio tubiero con piastra di sacrificio perfezionata
IT246964Y1 (it) * 1999-12-23 2002-04-10 Olmi Spa Scambiatore di calore a fascio tubiero con accessi per la pulizia

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016170486A1 (fr) * 2015-04-24 2016-10-27 Hexsol Italy Srl Échangeur de chaleur
EP3376150A1 (fr) 2017-03-14 2018-09-19 ALFA LAVAL OLMI S.p.A. Dispositif de protection pour un équipement à faisceau tubulaire
WO2018166868A1 (fr) 2017-03-14 2018-09-20 Alfa Laval Olmi S.P.A Dispositif de protection pour un équipement à coque et tube
KR20190125435A (ko) * 2017-03-14 2019-11-06 알파 라발 올미 에스.피.에이 쉘-및-튜브 장비를 위한 보호 장치
US11143465B2 (en) * 2017-03-14 2021-10-12 Alfa Laval Olmi S.P.A Protection device for a shell-and-tube equipment
CN111526938A (zh) * 2017-10-26 2020-08-11 阿法拉伐奥米有限公司 带有分配装置的壳管式设备
IT201800004154A1 (it) * 2018-03-30 2019-09-30 Galatello Adamo Gaetano Scambiatore di calore a fascio tubiero tle privo di setti o diaframmi forati di supporto
EP4134614A1 (fr) 2021-08-11 2023-02-15 Basell Polyolefine GmbH Échangeur de conduite de transfert avec revêtements par pulvérisation thermique
WO2023017060A1 (fr) 2021-08-11 2023-02-16 Basell Polyolefine Gmbh Échangeur de ligne de transfert avec revêtement par projection à chaud

Also Published As

Publication number Publication date
EP1331465A3 (fr) 2006-07-05
EP1331465B9 (fr) 2012-08-01
ITMI20020118A0 (it) 2002-01-24
EP1331465B1 (fr) 2012-02-01
ITMI20020118A1 (it) 2003-07-24
ATE544045T1 (de) 2012-02-15

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