US3507323A - Tube heat exchanger - Google Patents

Tube heat exchanger Download PDF

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Publication number
US3507323A
US3507323A US766557A US3507323DA US3507323A US 3507323 A US3507323 A US 3507323A US 766557 A US766557 A US 766557A US 3507323D A US3507323D A US 3507323DA US 3507323 A US3507323 A US 3507323A
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US
United States
Prior art keywords
tube
tubes
heat exchanger
medium
tube 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
US766557A
Other languages
English (en)
Inventor
Arvi Aiol Ronnholm
Juhani Jyry Kaartamo
Juhani Eevertti Puurunen
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.)
W Rosenlew Oy AB
Original Assignee
W Rosenlew Oy AB
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 W Rosenlew Oy AB filed Critical W Rosenlew Oy AB
Application granted granted Critical
Publication of US3507323A publication Critical patent/US3507323A/en
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
    • F28D7/10—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 one within the other, e.g. concentrically
    • F28D7/106—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 one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
    • 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
    • Y10S165/402—Manifold for shell-side fluid

Definitions

  • Tube heat exchanger or heating units with double tubes are previously known.
  • the outer of the double tubes is closed at its upper end, so that the medium will flow in one direction through the inner tube and then back in the opposite direction through the outer tube the outer and inner tubes being secured to their respective tube plates at the same end of the tubes. Heat transfer from the heating medium to the medium to be heated thus takes place only from one side of the heated medium through the tube walls.
  • the outer tubes are secured between two tube plates and open at both ends, while the inner tubes are arranged in the same manner as in the embodiment described above, in the form of double tubes closed at one end and secured to their respective tube plates.
  • double tubes are inserted in two tube plates only, the inner tubes opening through the walls of the outer tubes into the space between the tube plates.
  • the inner tubes have been provided with longitudinal ri'bs which renders the construction rather complicated and expensive and also vulnerable for incrustation.
  • the circulation of heating medium through the inner tubes has been poor which fact has adversely affected the heat transfer.
  • the present invention provides a heat exchanger with effective heat transfer from the heating medium to the heated medium and of a more simple construction than that of prior known heat exchangers of corresponding type.
  • the heat exchanger according to the invention there are standard outer and inner tubes, the inner tubes being provided with inlets resp. outlets for the heating medium, said inlets resp. outlets extending through the wall of the adjacent outer tube and opening at opposite sides of the tube plates with respect to the inlets resp.
  • Patented Apr. 21, 1970 outlets of the outer tubes According'to the invention an effective flow of heating medium through the inner tubes is provided by introducing the heating medium into the space surrounding the outer tubes through an annular slot, a baflie plate being inserted in said slot for the distribution of heating medium between said space surrounding the outer tubes on one hand and the inner tubes on the other hand.
  • a heat exchanger according to the invention thus has only two tube plates, and one outer tube with one inner tube form a unit, which facilitates tube replacement. Also with respect to tube connections the new heat exchanger is simplified, in that only one inlet resp. one outlet for the heating medium is required. With respect to tube heat exchangers with heat transfer only at one side, the inventive heat exchanger has the great advantage, that it is possible at constant volume to increase the capacity of the heat exchanger by from 50 to 60 percent, or inversely, at the same capacity to decrease the dimensions of the heat exchanger correspondingly.
  • the numeral 1 denotes a cylindrical housing, provided with end portions 2 and 3, having inlet and outlet connections 4 and 5 respectively for the medium to be heated which flows in the direction indicated by arrows.
  • Two tube plates 6 and 7 are provided, in the housing, to which plates a plurality of tubes 8 are secured in any suitable manner prior per se known, such as by expanding.
  • Each tube 8 is provided with a substantially coaxially situated inner tube 9 which has an inlet 10 extending through the wall of the outer tube 8 and an outlet 11 arranged in a corresponding manner.
  • Said inlets and outlets can be provided eg by cutting the tube ends at an angle of 45 and by welding the severed ends together with the tube together with the end portions only just can be inserted into an outer tube 8.
  • the latter is provided with openings for the end portions 10, 11, correspondingly spaced, and the end portions are passed so far into the openings that the tube 9 will be substantially coaxial with the tube 8, after which the end portions are secured by welding, and any protruding portions are removed.
  • an outer tube 8 and an inner tube 9 form a fixed unit.
  • the medium to be heated is arranged to flow in the space between the tubes 9 and 8.
  • the end portions constitute hereby naturally a certain flow obstruction, but by virtue of their flow favoring circular cross section this obstruction is of no substantial practical importance.
  • the heating medium which suitably can consist of steam, is arranged to flow on the one hand on the outside of the outer tubes 8 and on the other hand through the inner tubes 9, 10, 11.
  • the drawing shows a steam pipe 13 connected to a distributing hood 12 on the housing 1, while the numeral 14 denotes a condensate outlet from the space between the tube plates 6, 7 in the housing 1.
  • a distributing plate 15 is provided below the openings 10 at such a level that the ratio between the openings formed at the periphery above and below the distributing plate will give the desired uniform distribution.
  • the heat exchanger according to the invention may further be partitioned into sections, and be provided with guiding means so that the medium to be heated, after having flown through one section, will be guided back through another section for further heating.
  • a heat exchanger comprising an elongated casing, two partitions extending transversally in said casing at a distance from each other and defining end compartments at the opposite ends of said casing, a plurality of parallel outer tubes having open ends extending from one end compartment through said partitions into the other end compartment, an inner tube extending coaxially within each of said outer tubes, the ends of said inner tube opening through the Wall of said outer tube into the space be- 10 tween and adjacent to said partitions, an inlet for a heat receiving medium connected to one of said end compartments, an outlet for said medium connected to the other end compartment, a jacket having an inlet for a heat delivering medium encircling said casing adjacent to one of said partitions, said partition and said casing forming between them a substantially annular slit, an outlet for said heat delivering medium connected to said casing adjacent to the other of said partitions, and a plate extending substantially in parallel with said partitions between said outer tubes into said annular slit for the distribution of said heat delivering medium

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  • 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)
US766557A 1967-10-27 1968-10-10 Tube heat exchanger Expired - Lifetime US3507323A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE14755/67A SE320991B (ja) 1967-10-27 1967-10-27

Publications (1)

Publication Number Publication Date
US3507323A true US3507323A (en) 1970-04-21

Family

ID=20299608

Family Applications (1)

Application Number Title Priority Date Filing Date
US766557A Expired - Lifetime US3507323A (en) 1967-10-27 1968-10-10 Tube heat exchanger

Country Status (8)

Country Link
US (1) US3507323A (ja)
DE (1) DE1805264A1 (ja)
FI (1) FI42443B (ja)
FR (1) FR1589939A (ja)
GB (1) GB1247047A (ja)
NL (1) NL6815251A (ja)
NO (1) NO119807B (ja)
SE (1) SE320991B (ja)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2613317A1 (de) * 1976-03-29 1977-10-13 Lipez Buendelrohrwaermtauscher und verfahren zu dessen betrieb
US4254826A (en) * 1979-09-11 1981-03-10 Pvi Industries Inc. Modular heat exchanger
US5303769A (en) * 1992-09-25 1994-04-19 The M. W. Kellogg Company Integrated thermosiphon heat exchanger apparatus
US5390730A (en) * 1993-05-27 1995-02-21 Sterling, Inc. Fluid cooling system
WO1996024811A1 (en) * 1995-02-08 1996-08-15 The Equion Corporation Heat exchanger
EP0774639A2 (en) 1995-11-17 1997-05-21 David Roger Cook Tubular heat exchange system
US5927388A (en) * 1996-12-20 1999-07-27 Asea Brown Boveri Ag Condenser for binary/polynary condensation
US20130112380A1 (en) * 2010-07-12 2013-05-09 C.I. Kasei Company, Limited Heat exchanger
CN108362155A (zh) * 2018-02-08 2018-08-03 王萍 一种基于热交换技术的工业废气热能二次利用装置
CN109737789A (zh) * 2019-01-07 2019-05-10 安徽沃特普尔节能科技有限公司 一种多热源加热解析同种介质的组合式发生器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3715712C1 (de) * 1987-05-12 1988-07-21 Borsig Gmbh Waermetauscher insbesondere zum Kuehlen von Spaltgas

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2740803A (en) * 1950-01-19 1956-04-03 Ruhrchemie Ag Catalytic hydrogenation of carbon monoxide with indirect heat exchange cooling
FR1274618A (fr) * 1960-09-15 1961-10-27 échangeur de chaleur et éléments pour sa construction, applicables notamment au refroidissement de l'hexafluorure d'uranium
US3170511A (en) * 1961-03-27 1965-02-23 Lyle D Guthrie Stacked heat interchanger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2740803A (en) * 1950-01-19 1956-04-03 Ruhrchemie Ag Catalytic hydrogenation of carbon monoxide with indirect heat exchange cooling
FR1274618A (fr) * 1960-09-15 1961-10-27 échangeur de chaleur et éléments pour sa construction, applicables notamment au refroidissement de l'hexafluorure d'uranium
US3170511A (en) * 1961-03-27 1965-02-23 Lyle D Guthrie Stacked heat interchanger

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2613317A1 (de) * 1976-03-29 1977-10-13 Lipez Buendelrohrwaermtauscher und verfahren zu dessen betrieb
US4254826A (en) * 1979-09-11 1981-03-10 Pvi Industries Inc. Modular heat exchanger
US5303769A (en) * 1992-09-25 1994-04-19 The M. W. Kellogg Company Integrated thermosiphon heat exchanger apparatus
US5390730A (en) * 1993-05-27 1995-02-21 Sterling, Inc. Fluid cooling system
WO1996024811A1 (en) * 1995-02-08 1996-08-15 The Equion Corporation Heat exchanger
EP0774639A2 (en) 1995-11-17 1997-05-21 David Roger Cook Tubular heat exchange system
US5782290A (en) * 1995-11-17 1998-07-21 Cook; David R. Tubular heat exchange system
US5927388A (en) * 1996-12-20 1999-07-27 Asea Brown Boveri Ag Condenser for binary/polynary condensation
US20130112380A1 (en) * 2010-07-12 2013-05-09 C.I. Kasei Company, Limited Heat exchanger
CN108362155A (zh) * 2018-02-08 2018-08-03 王萍 一种基于热交换技术的工业废气热能二次利用装置
CN109737789A (zh) * 2019-01-07 2019-05-10 安徽沃特普尔节能科技有限公司 一种多热源加热解析同种介质的组合式发生器

Also Published As

Publication number Publication date
NO119807B (ja) 1970-07-06
GB1247047A (en) 1971-09-22
DE1805264A1 (de) 1969-05-22
FR1589939A (ja) 1970-04-06
SE320991B (ja) 1970-02-23
FI42443B (ja) 1970-04-30
NL6815251A (ja) 1969-04-29

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