US3799257A - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
US3799257A
US3799257A US00813856A US81385669A US3799257A US 3799257 A US3799257 A US 3799257A US 00813856 A US00813856 A US 00813856A US 81385669 A US81385669 A US 81385669A US 3799257 A US3799257 A US 3799257A
Authority
US
United States
Prior art keywords
tube
heat
heat exchanger
channel
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.)
Expired - Lifetime
Application number
US00813856A
Other languages
English (en)
Inventor
Clercq W De
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.)
Neratoom BV
Original Assignee
Neratoom BV
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
Priority to NL6805522A priority Critical patent/NL6805522A/xx
Application filed by Neratoom BV filed Critical Neratoom BV
Priority to US00813856A priority patent/US3799257A/en
Priority to GB1239194D priority patent/GB1239194A/en
Priority to FR696911620A priority patent/FR2007471B1/fr
Priority to DE19691919799 priority patent/DE1919799A1/de
Application granted granted Critical
Publication of US3799257A publication Critical patent/US3799257A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/06—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being molten; Use of molten metal, e.g. zinc, as heat transfer medium
    • F22B1/063—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being molten; Use of molten metal, e.g. zinc, as heat transfer medium for metal cooled nuclear reactors
    • 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
    • F28D7/0008—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 for one medium being in heat conductive contact with the conduits for the other 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
    • F28D7/08—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 otherwise bent, e.g. in a serpentine or zig-zag
    • 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
    • F28D7/08—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 otherwise bent, e.g. in a serpentine or zig-zag
    • F28D7/082—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
    • F28D7/085—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions
    • F28D7/087—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions assembled in arrays, each array being arranged in the same plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/06—Tubular elements of cross-section which is non-circular crimped or corrugated in cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • 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
    • F28D2021/0054—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for nuclear applications
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/02—Fastening; Joining by using bonding materials; by embedding elements in particular materials
    • F28F2275/025—Fastening; Joining by using bonding materials; by embedding elements in particular materials by using adhesives

Definitions

  • the invention relates to a heat exchanger or tubeunit for a heat exchangerin particular for applications for heat-exchanging media that react vigorously at direct contact, such as for example in a steam generator operating with liquid sodium and in a heat exchanger in which CO is heated by liquid sodium, this heat exchanger being composed of at least one tube for a heattransferring medium and at least one tube for a heatabsorbing medium, every tube for the heat-absorbing medium along a large part of its length being externally in heat-conductive contact with a tube for the heattransferring medium.
  • media between which heat transfer takes place in general there is one medium with a relatively low pressure and one medium with a relatively high pressure. It is known from the literature on this subject that for the exchange of heat liquid sodium can be applied as heat-transferring medium to produce steam. Because sodium and water react vigorously at mutual contact the heat exchange between these two media necessitates special safety measures.
  • both the water and the sodium are carried through separate tubes, when from a number of these tubes, entirely separated from each other, a heat exchanger is formed with the aid of laminations of heat-conductive material placed against each other, those laminations forming a block in which the tubes are provided, and having mutually externally heatconductive contact.
  • Still another drawback of this construction is that in the event of repair or replacement of one of the tubes the entire heat exchanger will have to be dismounted.
  • the heat exchanger according to the invention is characterized in that every tube for the heat-transferring medium externally is provided with at least one channel-shaped recess, against which lies a tube for the heat-absorbing medium and the profile of which in the location where the tubes are lying against each other corresponds to the external shape of the tube for the heat-absorbing medium.
  • the channel-shaped recess is carried out in such a way that the tube for the heat-absorbing medium lying in that recess, is taken into it for not more than half its circumference in order to obtain sufficient free surface of tube wall to allow, if necessary, one of the media to escape and to facilitate the leakage detection.
  • an adequately heat-conductive lute of a mechanical strength slight in respect of the tube walls In order to increase the heat transfer in this respect it may be of advantage to apply into the channelshaped recesses at the location where the tube walls of the two media are lying against each other, between these two walls, an adequately heat-conductive lute of a mechanical strength slight in respect of the tube walls.
  • a two-component lute could be used composed of graphite for the thermal conductivity and of water glass for rendering mechanical strength.
  • radio-active sodium from the primary cooling-circuit of the reactor can also be used as heat-transferring medium with water and steam as heat-absorbing media.
  • FIGS. 1, 2 and 3 herewith each give in cross-section embodiments with a central tube for feeding through sodium, the water tubes or steam tubes being distributed evenly over the outer wall of this tube.
  • FIG. 4 gives a view and FIG. 5 a cross-sectional view of another embodiment, in which a wide tube, rectangular in section, is applied for feeding through sodium, at the broad sides of which tube the water tubes or the steam tubes are transversily provided in the shape of a
  • the entire tube wall is profiled for shaping these channel-shaped recesses, whereas in FIG. 3 the tube wall is thicker and the channel-shaped recesses are only provided in the outer wall.
  • the channel-shaped recesses in the sodium tube have such a shape that the water tubes or steam tubes are taken into these recesses for not more than half their circumferences in order to retain both at the sodiumside and the steam side sufficient tube surface to allow sodium or steam to escape and to facilitate leak age detection.
  • the sodium tube is a wide flat rectangular tube 1, channel-shaped recesses 2 being provided in the broad walls 4 of the tube in a direction perpendicular to the direction of flow of the sodium through tube 1.
  • the water tubes or steam tubes are provided in the shape of a pipe coil 3.
  • a tube assembly for a heat exchanger adapted for media which react violently upon direct contact comprising a large tube provided with at least one external channel-shaped depression therein and at least one smaller tube which for a large part of its length is disposed with at most half of its circumference in the said channel-shaped depression in the large tube whose profile corresponds to the external shape of the smaller tube, the smaller tube being secured in the depression in the larger tube with means resulting in good thermal contact between the corresponding parts of the two tube surfaces and in only a slight strength of the connection as compared with the strength of the tube walls.
  • Heat exchanger according to claim 1 wherein the tube for the heat-transferring medium has several channel-shaped recesses, which are evenly distributed over the circumference.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US00813856A 1968-04-18 1969-04-07 Heat exchanger Expired - Lifetime US3799257A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL6805522A NL6805522A (fr) 1968-04-18 1968-04-18
US00813856A US3799257A (en) 1968-04-18 1969-04-07 Heat exchanger
GB1239194D GB1239194A (fr) 1968-04-18 1969-04-15
FR696911620A FR2007471B1 (fr) 1968-04-18 1969-04-15
DE19691919799 DE1919799A1 (de) 1968-04-18 1969-04-18 Waermeaustauscher

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL6805522A NL6805522A (fr) 1968-04-18 1968-04-18
US00813856A US3799257A (en) 1968-04-18 1969-04-07 Heat exchanger

Publications (1)

Publication Number Publication Date
US3799257A true US3799257A (en) 1974-03-26

Family

ID=26644316

Family Applications (1)

Application Number Title Priority Date Filing Date
US00813856A Expired - Lifetime US3799257A (en) 1968-04-18 1969-04-07 Heat exchanger

Country Status (5)

Country Link
US (1) US3799257A (fr)
DE (1) DE1919799A1 (fr)
FR (1) FR2007471B1 (fr)
GB (1) GB1239194A (fr)
NL (1) NL6805522A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079781A (en) * 1975-04-18 1978-03-21 Hjalmar Aass A/S Radiant heater
JP2003014383A (ja) * 2001-07-03 2003-01-15 Sanyo Electric Co Ltd 熱交換器及びヒートポンプ式給湯機
US20110240269A1 (en) * 2010-04-01 2011-10-06 Mac-Dan Innovations Llc Waste water heat recovery system
WO2013083204A1 (fr) * 2011-12-09 2013-06-13 Applied Materials, Inc. Échangeur de chaleur destiné au refroidissement d'un tuyau de chauffage et son procédé
CN104180367A (zh) * 2014-08-26 2014-12-03 西安热工研究院有限公司 一种流化床锅炉排渣管
GB2516440A (en) * 2013-07-22 2015-01-28 Richard Keirnan Waste water heat recovery unit

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2939753C3 (de) * 1979-10-01 1981-12-24 Kückens, Alexander, 2067 Reinfeld Behälter oder Rohr für unter Druck stehende flüssige oder gasförmige Medien, der bzw. das von einer Kühlschlange umwickelt ist
GB2117504B (en) * 1982-02-23 1985-05-01 Plascoat Uk Ltd Multiple core hose
US4529009A (en) * 1983-08-03 1985-07-16 Plascoat U.K. Limited Multiple core hose
GB8515818D0 (en) * 1985-06-21 1985-07-24 Webco Ltd Pipeline
DE19948943C2 (de) * 1998-09-02 2002-11-21 Webasto Thermosysteme Gmbh Eisspeicher-Baueinheit mit übereinander angeordneten Eisspeicher-Profilkörpern und dazwischen verlegtem Kältemittelrohr
DE19839992C2 (de) * 1998-09-02 2000-08-03 Webasto Thermosysteme Gmbh Eisspeicherelement-Baueinheit mit mehreren Profilkörper-Eisspeicherelementen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1886498A (en) * 1930-03-06 1932-11-08 Metropolitan Eng Co Heat interchanger
US2327750A (en) * 1940-08-02 1943-08-24 Detroit Edison Co Superheating flash boiler
US2446289A (en) * 1948-01-08 1948-08-03 Ebco Mfg Company Precooler system for refrigerated drinking fountains
DE890652C (de) * 1953-08-13 Gebruder Sulzer A. G., Winterthur (Schweiz) Befestigung von Rohren eines Rohrbundeis
US2795035A (en) * 1955-08-03 1957-06-11 Revco Inc Method of making a refrigerated cabinet liner
US3106958A (en) * 1961-06-06 1963-10-15 Modine Mfg Co Heat exchanger
US3153443A (en) * 1962-12-03 1964-10-20 Richard W Kritzer Heat exchange units

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB423095A (en) * 1933-04-21 1935-01-21 Charles Spencer Turner Steam superheater constructions

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE890652C (de) * 1953-08-13 Gebruder Sulzer A. G., Winterthur (Schweiz) Befestigung von Rohren eines Rohrbundeis
US1886498A (en) * 1930-03-06 1932-11-08 Metropolitan Eng Co Heat interchanger
US2327750A (en) * 1940-08-02 1943-08-24 Detroit Edison Co Superheating flash boiler
US2446289A (en) * 1948-01-08 1948-08-03 Ebco Mfg Company Precooler system for refrigerated drinking fountains
US2795035A (en) * 1955-08-03 1957-06-11 Revco Inc Method of making a refrigerated cabinet liner
US3106958A (en) * 1961-06-06 1963-10-15 Modine Mfg Co Heat exchanger
US3153443A (en) * 1962-12-03 1964-10-20 Richard W Kritzer Heat exchange units

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079781A (en) * 1975-04-18 1978-03-21 Hjalmar Aass A/S Radiant heater
JP2003014383A (ja) * 2001-07-03 2003-01-15 Sanyo Electric Co Ltd 熱交換器及びヒートポンプ式給湯機
JP4602601B2 (ja) * 2001-07-03 2010-12-22 三洋電機株式会社 熱交換器及びヒートポンプ式給湯機
US9010407B2 (en) * 2010-04-01 2015-04-21 Mac-Dan Innovations Llc Waste water heat recovery system
US20110240269A1 (en) * 2010-04-01 2011-10-06 Mac-Dan Innovations Llc Waste water heat recovery system
US20150128641A1 (en) * 2011-12-09 2015-05-14 Applied Materials, Inc. Heat exchanger for cooling a heating tube and method thereof
CN103988039A (zh) * 2011-12-09 2014-08-13 应用材料公司 用于冷却加热管的热交换器和所述冷却的方法
WO2013083204A1 (fr) * 2011-12-09 2013-06-13 Applied Materials, Inc. Échangeur de chaleur destiné au refroidissement d'un tuyau de chauffage et son procédé
US20190056157A1 (en) * 2011-12-09 2019-02-21 Applied Materials, Inc. Heat exchanger for cooling a heating tube and method thereof
US10215457B2 (en) * 2011-12-09 2019-02-26 Applied Materials, Inc. Heat exchanger for cooling a heating tube and method thereof
US10502466B2 (en) * 2011-12-09 2019-12-10 Applied Materials, Inc. Heat exchanger for cooling a heating tube and method thereof
GB2516440A (en) * 2013-07-22 2015-01-28 Richard Keirnan Waste water heat recovery unit
CN104180367A (zh) * 2014-08-26 2014-12-03 西安热工研究院有限公司 一种流化床锅炉排渣管

Also Published As

Publication number Publication date
DE1919799A1 (de) 1969-11-06
NL6805522A (fr) 1969-10-21
FR2007471A1 (fr) 1970-01-09
GB1239194A (fr) 1971-07-14
FR2007471B1 (fr) 1973-02-02

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