EP1519134A3 - Heat exchanger - Google Patents

Heat exchanger Download PDF

Info

Publication number
EP1519134A3
EP1519134A3 EP04022410A EP04022410A EP1519134A3 EP 1519134 A3 EP1519134 A3 EP 1519134A3 EP 04022410 A EP04022410 A EP 04022410A EP 04022410 A EP04022410 A EP 04022410A EP 1519134 A3 EP1519134 A3 EP 1519134A3
Authority
EP
European Patent Office
Prior art keywords
tube
nest
tubes
bypass
traversed
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Withdrawn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
EP04022410A
Other languages
German (de)
French (fr)
Other versions
EP1519134A2 (en
Inventor
Luca Zanardi
Pierluigi Ricci
Gaetano Galatello Adamo
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 EP1519134A2 publication Critical patent/EP1519134A2/en
Publication of EP1519134A3 publication Critical patent/EP1519134A3/en
Withdrawn legal-status Critical Current

Links

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
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/087—Heat exchange elements made from metals or metal alloys from nickel or nickel alloys
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/06—Derivation channels, e.g. bypass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2270/00—Thermal insulation; Thermal decoupling

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)

Abstract

A tube-nest heat exchanger with bypass for process fluid output temperature control comprises a chamber (14) traversed by an exchange fluid and closed at opposite ends by a pair of tube plates (12,13) with a tube nest (11) between them. The tube-nest tubes are traversed by the process fluid and are in contact externally with the exchange fluid in the chamber. Between the tube plates (12,13) is at least one bypass tube (17) made up of an external shell (18) in contact with the exchange fluid and a thermally insulating layer (19) on the inner wall to surround an internal passage (20) traversed by the process fluid. The material of the external shell of the bypass tube and the material of the tube-nest tubes are mutually different and chosen with different thermal expansion coefficients such that the functions ΔLt(T) and ΔLb(T) of the lengthening starting from the length under assembly conditions as a function of temperature and respectively of the tube-nest tubes and the bypass tube shell identify at said respective mean operating temperatures Tet and Teb, values ΔLt(Tet) and ΔLb(Teb) such that |1-ΔLt(Tet)/ΔLb(Teb)|<=0.15. This produces reduced stress on the welds between tubes and tube plates and allows realization of more economical and stronger exchangers.
EP04022410A 2003-09-24 2004-09-21 Heat exchanger Withdrawn EP1519134A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT001826A ITMI20031826A1 (en) 2003-09-24 2003-09-24 HEAT EXCHANGER AND PERFECT STRUCTURE.
ITMI20031826 2003-09-24

Publications (2)

Publication Number Publication Date
EP1519134A2 EP1519134A2 (en) 2005-03-30
EP1519134A3 true EP1519134A3 (en) 2008-02-20

Family

ID=34179332

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04022410A Withdrawn EP1519134A3 (en) 2003-09-24 2004-09-21 Heat exchanger

Country Status (2)

Country Link
EP (1) EP1519134A3 (en)
IT (1) ITMI20031826A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102338572A (en) * 2010-07-26 2012-02-01 济南西斯普换热系统有限公司 Sterile dual-tubeplate shell-and-tube heat exchanger
CN103471432A (en) * 2013-09-26 2013-12-25 上海锅炉厂有限公司 Double-spiral sheet type fixed tube-sheet heat exchanger with temperature control function
CN103486881B (en) * 2013-09-26 2015-07-15 上海锅炉厂有限公司 Temperature-controllable floating head heat exchanger with double-helix baffling plates

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009048592A1 (en) * 2009-10-07 2011-04-14 Lurgi Gmbh Waste heat recovery boiler has multiple heat transfer tubes and bypass tube inside cylindrical outer cover, where heat transfer tubes and bypass tube have inlet end and outlet end
CN103471431A (en) * 2013-09-26 2013-12-25 上海锅炉厂有限公司 Fixed tube-sheet heat exchanger with temperature control function
DE102014222158A1 (en) * 2014-10-30 2016-05-04 Mahle International Gmbh Exhaust gas heat exchanger
CN105202949A (en) * 2015-10-15 2015-12-30 上海锅炉厂有限公司 Controllable-temperature self-cooling protection high-temperature U-tube evaporator
EP3407001A1 (en) 2017-05-26 2018-11-28 ALFA LAVAL OLMI S.p.A. Shell-and-tube equipment with bypass
CN110332829B (en) * 2019-04-03 2020-07-31 新乡北新建材有限公司 Novel heat exchanger structure of gypsum board

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2091003A (en) * 1936-03-14 1937-08-24 J P Devine Mfg Co Inc Heat exchange apparatus
GB758030A (en) * 1953-02-20 1956-09-26 Exxon Research Engineering Co Improvements in or relating to tubular heat exchangers
US3570545A (en) * 1967-09-29 1971-03-16 Benteler Werke Ag Insulated tube and method of making the same
DE2846455B1 (en) * 1978-10-23 1979-10-31 Borsig Gmbh Tube bundle heat exchanger with a constant outlet temperature of one of the two media
WO2002052142A1 (en) * 2000-12-19 2002-07-04 Valeo Termico Sa Heat-exchanger module, specially designed for an exhaust gas recycling system
EP1288603A2 (en) * 2001-08-30 2003-03-05 Behr GmbH & Co. Exhaust gas heat exchanger
WO2003062625A1 (en) * 2002-01-26 2003-07-31 Behr Gmbh & Co. Kg Exhaust gas heat exchanger

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2091003A (en) * 1936-03-14 1937-08-24 J P Devine Mfg Co Inc Heat exchange apparatus
GB758030A (en) * 1953-02-20 1956-09-26 Exxon Research Engineering Co Improvements in or relating to tubular heat exchangers
US3570545A (en) * 1967-09-29 1971-03-16 Benteler Werke Ag Insulated tube and method of making the same
DE2846455B1 (en) * 1978-10-23 1979-10-31 Borsig Gmbh Tube bundle heat exchanger with a constant outlet temperature of one of the two media
WO2002052142A1 (en) * 2000-12-19 2002-07-04 Valeo Termico Sa Heat-exchanger module, specially designed for an exhaust gas recycling system
EP1288603A2 (en) * 2001-08-30 2003-03-05 Behr GmbH & Co. Exhaust gas heat exchanger
WO2003062625A1 (en) * 2002-01-26 2003-07-31 Behr Gmbh & Co. Kg Exhaust gas heat exchanger

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102338572A (en) * 2010-07-26 2012-02-01 济南西斯普换热系统有限公司 Sterile dual-tubeplate shell-and-tube heat exchanger
CN103471432A (en) * 2013-09-26 2013-12-25 上海锅炉厂有限公司 Double-spiral sheet type fixed tube-sheet heat exchanger with temperature control function
CN103486881B (en) * 2013-09-26 2015-07-15 上海锅炉厂有限公司 Temperature-controllable floating head heat exchanger with double-helix baffling plates
CN103471432B (en) * 2013-09-26 2015-11-18 上海锅炉厂有限公司 One has the board-like fixed tube-sheet exchanger of temperature controlling function double helix

Also Published As

Publication number Publication date
ITMI20031826A1 (en) 2005-03-25
EP1519134A2 (en) 2005-03-30

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Effective date: 20080503