EP1508763B1 - Verfahren zur Anordnung eines Entlüftungsrohres in einem Wärmetauscher - Google Patents

Verfahren zur Anordnung eines Entlüftungsrohres in einem Wärmetauscher Download PDF

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Publication number
EP1508763B1
EP1508763B1 EP03018961A EP03018961A EP1508763B1 EP 1508763 B1 EP1508763 B1 EP 1508763B1 EP 03018961 A EP03018961 A EP 03018961A EP 03018961 A EP03018961 A EP 03018961A EP 1508763 B1 EP1508763 B1 EP 1508763B1
Authority
EP
European Patent Office
Prior art keywords
pipe
heat exchanger
tube
vent
housing
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
EP03018961A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1508763A1 (de
Inventor
Hans-Günter Dipl.-Ing. Grobelny
Walter Ing.-Grad. Schwarzer
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.)
Balcke Duerr GmbH
Original Assignee
Balcke Duerr 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34042879&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1508763(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Balcke Duerr GmbH filed Critical Balcke Duerr GmbH
Priority to AT03018961T priority Critical patent/ATE377742T1/de
Priority to DE50308544T priority patent/DE50308544D1/de
Priority to EP03018961A priority patent/EP1508763B1/de
Priority to US10/916,412 priority patent/US7350560B2/en
Priority to ZA2004/06373A priority patent/ZA200406373B/en
Priority to NO20043407A priority patent/NO20043407L/no
Priority to CA2477936A priority patent/CA2477936C/en
Priority to CNB200410058576XA priority patent/CN100368751C/zh
Priority to PL369664A priority patent/PL207547B1/pl
Priority to RU2004125546/06A priority patent/RU2296283C2/ru
Priority to JP2004241530A priority patent/JP2005069678A/ja
Publication of EP1508763A1 publication Critical patent/EP1508763A1/de
Priority to HK05107037.5A priority patent/HK1075489B/xx
Publication of EP1508763B1 publication Critical patent/EP1508763B1/de
Application granted granted Critical
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
    • F28D7/06—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 having a single U-bend
    • 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
    • F28F9/005—Other auxiliary members within casings, e.g. internal filling means or sealing means

Definitions

  • the invention relates to a method for arranging a vent pipe in a heat exchanger having a plurality of tubes arranged in a housing and preferably combined to form at least one tube bundle and a plurality of partition walls dividing the housing into separate regions.
  • Heat exchangers of the aforementioned type are known from the prior art ( DE 1098954 B and US 5853549 A ) and are generally referred to as tubular heat exchangers. They serve the heat exchange between two different tempered media, wherein the one medium is guided in the U-shaped tubes usually combined as tube bundles, whereas the other medium is passed in transverse or longitudinal flow to the tubes of the heat exchanger.
  • a highly heated fluid in the form of water vapor, water or inert gas is usually used as the second medium from which the heat is dissipated and transferred to the first medium conducted through the tubes.
  • the housing accommodating the tubes of the heat exchanger has a plurality of intermediate walls, as a result of which arrangement housing areas are created.
  • the partitions also serve the position-safe and dimensionally stable arrangement of arranged in the housing of the heat exchanger for heat transfer tubes.
  • the second medium to be passed through for heat exchange through the individual housing regions can not be led out of the respective housing regions without residue.
  • a gaseous fluid can form condensable residues in the form of gas bubbles, which concentrate on from the outside in inaccessible places in the housing, ie accumulate. Consequently can with increasing operation of the heat exchanger originally asked by the individual heat exchanger tubes for heat exchange surface available no longer be fully used because the accumulated fluid residues surround the individual heat exchanger tubes in the manner of an insulator.
  • residues form in the region of the intermediate walls, so that with increasing operating time of the heat exchanger downright insulating layers can form, the disadvantage can worsen the efficiency of the heat exchanger in some significant mass. And so were found in operating heat exchangers power losses of up to 50%.
  • the object of the invention is therefore to provide a method for upgrading such heat exchangers that overcomes the aforementioned disadvantages and also has a relatively high efficiency with increasing operating time.
  • This object is achieved with a method in which a tube originally provided for the heat exchange is separated in the region above the intermediate longitudinally arranged in the longitudinal direction intermediate wall and the separated pipe section is removed and replaced by a provided with vent holes vent pipe.
  • vent tube is very simple. If a deterioration in the efficiency of the heat exchanger is determined on the consumer side, then it is only necessary to temporarily stop the operation of the heat exchanger, to open the otherwise closed vent tube by means of appropriate fittings and to suck the fluid residues accumulated in the housing through the vent tube. The vent tube can then be closed again and the functional operation of the heat exchanger can be recorded.
  • the heat exchanger has a plurality of ventilation pipes, wherein in each case at least one ventilation pipe is provided per housing region.
  • At least one venting tube is to be provided per housing area to be vented, which has venting bores exclusively in the respective housing area assigned to the venting tube. If, for example, a heat exchanger housing is divided into a total of four subregions, at least a total of four venting tubes are to be provided, wherein each venting tube is used for the venting of one of the four subregions.
  • the individual subsections of the heat exchanger housing are charged with one and the same medium, or should a possible mixing of the media used in each case not be important, so the use may be sufficient only one vent tube, it being provided that the vent tube at least per separate Area has a vent hole. Even with such an embodiment, of course, the use of multiple vent tubes with respect to an accelerated venting advantage.
  • the number of vent holes per vent tube and their respective diameter are designed depending on the use of the heat exchanger.
  • the number of vent holes and their respective diameter can be varied, it is important to position vent holes, each with required cross section in those areas of the vented housing, in which preferably fluid residues in the form of gas bubbles or the like form.
  • vent holes are aligned, which means in the sense of the invention that the vent holes are distributed over the effective length of the vent pipe such that a to be expected with respect to the use of the heat exchanger residue formation preferably can be completely sucked to vent the heat exchanger.
  • the designated pipes After opening the heat exchanger water chamber, the designated pipes are fixed in the bundle holder, parts of the old pipe cut in a controlled manner without damaging adjacent pipes, control of neighboring pipes for damage, new pipes with a defined perforation used, sealed to the pipe, merged in internal collectors and guided by existing or new container neck to the outside.
  • the heat exchanger remains in the power plant and only has to be driven off. Disassembly of pipelines is not required.
  • An inventively retrofitted heat exchanger offers the advantages already described above, wherein unlike a factory already equipped with a vent tube heat exchanger according to the inventive method is provided that a tube originally provided for the heat exchange retrofitted and is used in the other as a vent tube.
  • a tube originally provided for the heat exchange retrofitted and is used in the other as a vent tube is used in the other as a vent tube.
  • at least one of the preferably U-shaped heat exchange tubes is separated in the area above the intermediate wall arranged longitudinally to the bottom. The thus separated leg of the U-shaped tube is then removed and replaced with a vent hole provided with vent pipe. This then serving as a vent pipe section of the U-shaped tube can then be used to vent the heat exchanger in the manner already described above.
  • the other leg of the U-shaped tube is separated in the same way and replaced by a vent tube or, if this is neither desired nor necessary, sealed.
  • the originally serving as a heat exchange tube U-shaped tube of the heat exchanger is to be decoupled from the heat exchange circuit.
  • the originally intended for the heat exchange tube is widened before its separation in the area above the partition.
  • This can preferably be done by means of a probe, by means of which over a defined length an end-side widening of the pipe section remaining in the heat exchanger can be carried out.
  • the pipe widening can be used to form a pipe receptacle for the vent pipe to be introduced.
  • the vent tube can then be inserted and anchored in the pipe receiving device formed in this way.
  • the pipe receiving can be configured as a press fit.
  • other connection options, such as bonding are suitable.
  • FIG. 1 is a schematic view of the lower portion of a heat exchanger 1. Formed is the heat exchanger 1 by a plurality of arranged in a housing 2 and combined into tube bundles U-shaped tubes 3. Provision is further more intermediate walls 4, the Divide housing 2 into separate areas 5.
  • the tubes 3 are flowed through by a medium to be heated, which flows into the tubes 3 in the flow direction 10 and leaves them again in the flow direction 11.
  • a medium to be heated which flows into the tubes 3 in the flow direction 10 and leaves them again in the flow direction 11.
  • a second medium which flows transversely to the orientation of the tubes 3 through the regions 5 of the housing 2 and the housing leaves through the outlet openings 6 in the flow direction 13 again.
  • the medium conducted through the subregions 5 in a manner known per se, releases the heat energy carried by it to the medium conveyed through the tubes 3.
  • the second medium can also be introduced into the heat exchanger in a manner different from that shown in FIG.
  • a vent tube 6 is provided according to the invention that preferably extends through all areas 5 of the housing 2 and a plurality of transversely to the longitudinal extent 14 of the tube 6 formed vent holes. Any fluid residues forming in the housing 2 can be sucked off via this vent pipe 6 and released to the environment surrounding the heat exchanger 1.
  • the use of the vent tube 6 thus creates the possibility of freeing the housing 2 of the heat exchanger 1 of any fluid residues, with a relatively high efficiency is ensured even with increasing operating time of the heat exchanger 1.
  • FIG. 1 shows a heat exchanger 1 according to the invention, in which a vent pipe 6 is already introduced by the manufacturer.
  • the embodiment of FIG. 2 shows a retrofitted with a vent pipe in the aforementioned sense heat exchanger 1. It is provided in this embodiment, that originally provided for the heat exchange pipe 3 in the region above the longitudinal direction 14 at the bottom arranged intermediate wall 4 at the 8 separated point was separated and the separated pipe section was removed and replaced with a provided with vent holes 15 vent pipe 6. The remaining portion 7 of the originally intended for the heat exchange tube 3 remains in the heat exchanger 1 and is closed at the ends by a plug 9. In order to determine the position of the intermediate walls 4 arranged within the heat exchanger, an eddy-current measurement can be carried out in an upstream method step. The operation of this subsequently introduced in the sense of a retrofit in the heat exchanger 1 vent pipe 6 corresponds to that, as already described for Fig. 1.
  • FIGS. 3 to 6 Shown in FIGS. 3 to 6 in a schematic partial view of a partial section of an originally intended for the heat exchange tube 3 in the region of the in Fig. 2 denoted by 8 separating point.
  • a first method step which is shown in FIG. 3, initially the pipe 3 originally provided for the heat exchange is preferably separated in the region above the intermediate wall arranged in the longitudinal direction 14 to the bottom. This is shown schematically in Fig. 3 by the direction indicated by the dashed line separating point 8.
  • vent pipe 6 of the heat exchanger 1 remaining in the portion 7 of the originally intended for the heat exchange pipe 3 is expanded to form a pipe receiving 16.
  • the vent pipe 6 can be inserted into the heat exchanger 1 and fitted into the pipe receptacle 16 in a final process step.
  • the vent pipe 6 is, as shown particularly in FIG. 5 can be removed, formed rohrability bath closed, for which purpose a closure element 21 may be provided.
  • a gluing is possible.
  • FIG. 6 An alternative embodiment for connecting the vent pipe 6 with the heat exchanger in the remaining portion 7 of the pipe 3 is shown in Fig. 6. It is shown here that the end of the vent pipe 6 is inserted into the vent pipe 6 connecting member 20 is provided, for example in the form of a cylindrical and raw receiving side tapered element can be formed. For a connection of the vent pipe 6 with the heat exchanger remaining in the section 7 of the tube 3, the vent pipe 6 is introduced into the heat exchanger, wherein the connecting member 20 protrudes beyond the rohrability Dusten edge of the vent pipe 6 and so as a connection between the vent pipe 6 and section 7 in the pipe 3 is introduced.
  • the pipe 3 originally provided for the heat exchange is first widened before being separated in the region of the later separation point 8. This achieves this, that after a successful separation of the tube remaining in the heat exchanger section 7 of the tube 3 does not slip, but rather is held securely in position. After a separation of the tube, the tube extension then serves as a pipe receiving, as already described above.
  • a method implementation according to this alternative therefore provides that for a retrofitting of the vent pipe 6, a pipe initially provided for the heat exchange is preferably widened above the intermediate wall arranged at the bottom.

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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)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Defrosting Systems (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Power Steering Mechanism (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
EP03018961A 2003-08-21 2003-08-21 Verfahren zur Anordnung eines Entlüftungsrohres in einem Wärmetauscher Expired - Lifetime EP1508763B1 (de)

Priority Applications (12)

Application Number Priority Date Filing Date Title
AT03018961T ATE377742T1 (de) 2003-08-21 2003-08-21 Verfahren zur anordnung eines entlüftungsrohres in einem wärmetauscher
DE50308544T DE50308544D1 (de) 2003-08-21 2003-08-21 Verfahren zur Anordnung eines Entlüftungsrohres in einem Wärmetauscher
EP03018961A EP1508763B1 (de) 2003-08-21 2003-08-21 Verfahren zur Anordnung eines Entlüftungsrohres in einem Wärmetauscher
US10/916,412 US7350560B2 (en) 2003-08-21 2004-08-12 Heat exchangers
ZA2004/06373A ZA200406373B (en) 2003-08-21 2004-08-12 Heat exchangers
NO20043407A NO20043407L (no) 2003-08-21 2004-08-16 Varmeveksler
CA2477936A CA2477936C (en) 2003-08-21 2004-08-18 Heat exchangers
CNB200410058576XA CN100368751C (zh) 2003-08-21 2004-08-18 热交换器
PL369664A PL207547B1 (pl) 2003-08-21 2004-08-19 Wymiennik ciepła i sposób umieszczania rury odpowietrzającej w wymienniku ciepła
RU2004125546/06A RU2296283C2 (ru) 2003-08-21 2004-08-20 Теплообменник и способ расположения вентиляционной трубы в теплообменнике
JP2004241530A JP2005069678A (ja) 2003-08-21 2004-08-20 熱交換器又はガス抜き管の設置方法
HK05107037.5A HK1075489B (en) 2005-08-16 Method for providing a heat exchanger with a vent tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03018961A EP1508763B1 (de) 2003-08-21 2003-08-21 Verfahren zur Anordnung eines Entlüftungsrohres in einem Wärmetauscher

Publications (2)

Publication Number Publication Date
EP1508763A1 EP1508763A1 (de) 2005-02-23
EP1508763B1 true EP1508763B1 (de) 2007-11-07

Family

ID=34042879

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03018961A Expired - Lifetime EP1508763B1 (de) 2003-08-21 2003-08-21 Verfahren zur Anordnung eines Entlüftungsrohres in einem Wärmetauscher

Country Status (11)

Country Link
US (1) US7350560B2 (pl)
EP (1) EP1508763B1 (pl)
JP (1) JP2005069678A (pl)
CN (1) CN100368751C (pl)
AT (1) ATE377742T1 (pl)
CA (1) CA2477936C (pl)
DE (1) DE50308544D1 (pl)
NO (1) NO20043407L (pl)
PL (1) PL207547B1 (pl)
RU (1) RU2296283C2 (pl)
ZA (1) ZA200406373B (pl)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006017641A (ja) * 2004-07-02 2006-01-19 Toshiba Corp 原子炉冷却材再循環装置
US9157685B2 (en) * 2010-04-10 2015-10-13 Christopher J. Dixon Heat exchanger maintenance technique
US20160202002A1 (en) * 2013-10-04 2016-07-14 Ice Western Sales Ltd. Indirect fired heat exchanger
DE102014016940A1 (de) 2014-11-14 2016-06-02 Balcke-Dürr GmbH Rohrbündelwärmetauscher, Rohrscheibe, Rohrscheibenmodul, Kondensator, Vorwärmer und Speisewasserbehälter eines Großkraftwerkes sowie Verfahren zum Absaugen von Fremdgasen aus dem Kondensationsraum eines Rohrbündelwärmetauschers und Verfahren zum Nachrüsten eines Rohrbündelwärmetauschers
CN119245391B (zh) * 2024-12-04 2025-03-25 沧州临港亚诺化工有限公司 一种氰基吡啶生产用列管换热器

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DE1098954B (de) * 1958-09-24 1961-02-09 Bbc Brown Boveri & Cie Einrichtung zur Entlueftung von dampfbeheizten Speisewasservorwaermern
US3795273A (en) * 1972-06-12 1974-03-05 Foster Wheeler Corp Feedwater heater
JPS5327705A (en) * 1976-08-27 1978-03-15 Hitachi Ltd Multitube type heat exchanger
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JPS5468555A (en) * 1977-11-11 1979-06-01 Hitachi Ltd Multi tube type heat exchanger
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JPS5531206A (en) * 1978-08-25 1980-03-05 Toshiba Corp Heat exchanger
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JPS6179784U (pl) * 1984-10-26 1986-05-28
JPS61140762A (ja) * 1984-12-13 1986-06-27 株式会社東芝 非共沸混合媒体用蒸発器
JPH01218632A (ja) * 1988-02-29 1989-08-31 Osamu Takahashi 熱交換形管式混合反応装置
JPH07180981A (ja) * 1993-12-24 1995-07-18 Ishikawajima Harima Heavy Ind Co Ltd 熱交換器
US5853549A (en) * 1995-03-14 1998-12-29 Sephton; Hugo H. Desalination of seawater by evaporation in a multi-stack array of vertical tube bundles, with waste heat.
US6276442B1 (en) * 1998-06-02 2001-08-21 Electric Boat Corporation Combined condenser/heat exchanger
JP3888789B2 (ja) * 1998-11-05 2007-03-07 荏原冷熱システム株式会社 製氷機用冷却器
RU2147102C1 (ru) * 1999-02-01 2000-03-27 Акционерное общество открытого типа "Научно-производственное объединение по исследованию и проектированию энергетического оборудования им.И.И.Ползунова" Поверхностный теплообменник
JP3125217B2 (ja) * 1999-05-19 2001-01-15 哲人 田村 冷却液を用いた急冷装置
JP4451520B2 (ja) * 1999-11-08 2010-04-14 株式会社日本触媒 竪型熱交換器
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RU2242690C2 (ru) * 2002-10-10 2004-12-20 Открытое акционерное общество "Таганрогский котлостроительный завод "Красный котельщик" Парожидкостный теплообменник

Also Published As

Publication number Publication date
ZA200406373B (en) 2005-06-29
DE50308544D1 (de) 2007-12-20
CA2477936C (en) 2012-10-30
PL369664A1 (pl) 2005-03-07
JP2005069678A (ja) 2005-03-17
RU2004125546A (ru) 2006-01-27
PL207547B1 (pl) 2010-12-31
US20050067148A1 (en) 2005-03-31
EP1508763A1 (de) 2005-02-23
CA2477936A1 (en) 2005-02-21
US7350560B2 (en) 2008-04-01
NO20043407L (no) 2005-02-22
HK1075489A1 (zh) 2005-12-16
CN100368751C (zh) 2008-02-13
RU2296283C2 (ru) 2007-03-27
ATE377742T1 (de) 2007-11-15
CN1595038A (zh) 2005-03-16

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