EP2268992A1 - Procédé de réparation d'un échangeur de chaleur à plaques - Google Patents
Procédé de réparation d'un échangeur de chaleur à plaquesInfo
- Publication number
- EP2268992A1 EP2268992A1 EP09742266A EP09742266A EP2268992A1 EP 2268992 A1 EP2268992 A1 EP 2268992A1 EP 09742266 A EP09742266 A EP 09742266A EP 09742266 A EP09742266 A EP 09742266A EP 2268992 A1 EP2268992 A1 EP 2268992A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- circuits
- adjacent
- adjacent circuits
- heat exchanger
- plate 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 26
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 5
- 239000011261 inert gas Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 3
- 238000009834 vaporization Methods 0.000 description 5
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 230000008016 vaporization Effects 0.000 description 4
- 238000005219 brazing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F11/00—Arrangements for sealing leaky tubes and conduits
-
- 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
- F28D2021/0033—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cryogenic applications
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49352—Repairing, converting, servicing or salvaging
Definitions
- the present invention relates to a method of repairing a plate heat exchanger of the type comprising a plurality of plates, defining with sidebars arranged on the plates circuits for the circulation of fluid.
- Plate heat exchangers generally consist of a stack of plates defining passages for fluids.
- corrugated sheets called fins or waves
- the passages thus formed are closed laterally by lateral bars.
- the heat exchanger thus mounted is then brazed to ensure a holding of the assembly and a better thermal contact.
- Heat exchangers of the state of the art can exchange the heat of many fluids. Plate heat exchangers employing more than five fluids are commonly found.
- plate heat exchangers are also used in processes involving only two fluids.
- this type of exchanger corresponds to vapo ⁇ seur - condenser.
- a first fluid vaporizes by drawing the heat of a second fluid that condenses.
- a leak may appear between a condensation passage and a vaporization passage. It follows a loss of purity of the fluid to vaporize. For some processes, this purity is critical, and such leakage may result in the need to repair or change the plate heat exchanger.
- An object of the present invention is to provide a method of repairing a plate heat exchanger that does not require a particular design of said heat exchanger.
- the invention thus proposes a method of repairing a plate heat exchanger of the type comprising a plurality of plates, defining with lateral bars, arranged on the plates, circuits for the circulation of fluids, one of the circuits leaks to an adjacent circuit, comprising at least the following successive steps:
- a repair method according to the invention makes it possible to repair a plate heat exchanger whatever the geometry of the latter.
- the invention will be particularly advantageous for repairing heat exchangers comprising passages without fins.
- a method according to the invention provides for placing the two adjacent circuits at the same pressure, generally between 0.5 and 1.5 bar, resulting in modest mechanical stresses between the two adjacent circuits.
- a method according to the invention may further comprise one or more of the optional features following, considered individually or in all possible combinations:
- the fluid that is injected into the two adjacent circuits is an inert gas
- the fluid that is injected into the two adjacent circuits is nitrogen gas.
- the invention consists in isolating two adjacent circuits of a heat exchanger and in balancing the pressure between these two adjacent circuits so as to reduce the mechanical stresses between these two circuits.
- the equilibrium pressure between the two circuits is chosen between 0.5 and 1.5 bar so as to further reduce the mechanical stresses within the heat exchanger.
- the two adjacent circuits may be isolated by means of plates welded to the input and output of these two circuits, or by any other means known to those skilled in the art.
- the collector box that can be arranged on the lateral bars of the two adjacent circuits to allow the injection of the fluid into the two circuits, can be in the form of a semi-cylindrical volume provided with a means of arrival of fluid.
- the manifold can be arranged astride between the two adjacent circuits.
- the injected fluid may be a chemically inert gas.
- the injection of a chemically inert gas makes it possible to prevent this gas from reacting with the other fluids circulating in said heat exchanger.
- the inert gas is preferably selected to have a condensing temperature below the operating temperature of the heat exchanger.
- the heat exchanger when used as vaporizer-condenser of an air separation unit or ASU (Air Separation Unit), nitrogen gas can be used as an inert fluid. Indeed, the condensation temperature of the nitrogen is lower than the operating temperature of the heat exchanger in an air separation apparatus.
- ASU Air Separation Unit
- the invention is not limited to the embodiment described and must be interpreted in a nonlimiting manner and encompassing all the equivalent embodiments.
- the method according to the invention is applicable to any type of plate heat exchanger, whatever its application and its dimensions, the condenser vapo ⁇ seurs air separation device being only an example of application privileges.
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
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0852845A FR2930632B1 (fr) | 2008-04-28 | 2008-04-28 | Procede de reparation d'un echangeur de chaleur a plaques |
| PCT/FR2009/050608 WO2009136068A1 (fr) | 2008-04-28 | 2009-04-08 | Procédé de réparation d'un échangeur de chaleur à plaques |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2268992A1 true EP2268992A1 (fr) | 2011-01-05 |
| EP2268992B1 EP2268992B1 (fr) | 2014-05-07 |
Family
ID=40225347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09742266.1A Not-in-force EP2268992B1 (fr) | 2008-04-28 | 2009-04-08 | Procédé de réparation d'un échangeur de chaleur à plaques |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8782888B2 (fr) |
| EP (1) | EP2268992B1 (fr) |
| JP (1) | JP2011519014A (fr) |
| CN (1) | CN102016481B (fr) |
| FR (1) | FR2930632B1 (fr) |
| WO (1) | WO2009136068A1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2930632B1 (fr) * | 2008-04-28 | 2010-05-07 | Air Liquide | Procede de reparation d'un echangeur de chaleur a plaques |
| FI124230B (fi) | 2012-05-28 | 2014-05-15 | Vahterus Oy | Menetelmä ja järjestely lämmönsiirtimen levypakan korjaamiseksi sekä levylämmönsiirrin |
| JP5982221B2 (ja) * | 2012-08-21 | 2016-08-31 | 株式会社神戸製鋼所 | プレートフィン熱交換器及びプレートフィン熱交換器の補修方法 |
| CN109737781B (zh) * | 2019-03-11 | 2023-11-24 | 江苏欧迈格板式换热器制造有限公司 | 多隔板换热面积可调型板式换热器 |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1125175A (en) * | 1966-01-27 | 1968-08-28 | Marston Excelsior Ltd | Improvements in heat exchangers |
| FR1472493A (fr) * | 1966-03-22 | 1967-03-10 | Trane Co | échangeur de chaleur du type à plaques et son procédé de construction et de réparation |
| US3590914A (en) * | 1969-10-01 | 1971-07-06 | Trane Co | Countercurrent flow plate-type heat exchanger with leak detector |
| NL158287B (nl) * | 1975-02-05 | 1978-10-16 | Neratoom | Werkwijze voor het afdichten van lekke pijpen, reparatie-eenheid ten gebruike bij de werkwijzen en inrichting gerepareerd door toepassing van de werkwijze. |
| US4090554A (en) * | 1976-11-17 | 1978-05-23 | The Babcock & Wilcox Company | Heat exchanger |
| US4226113A (en) * | 1979-04-11 | 1980-10-07 | Electric Power Research Institute, Inc. | Leak detecting arrangement especially suitable for a steam condenser and method |
| JPS61254830A (ja) * | 1985-05-08 | 1986-11-12 | Babcock Hitachi Kk | 熱交換器伝熱管盲栓部の耐圧試験方法 |
| GB2208005A (en) * | 1987-08-07 | 1989-02-15 | Apv Uk | Plate heat transfer apparatus |
| CA1296583C (fr) * | 1988-06-16 | 1992-03-03 | Raymond Joseph Chalifoux | Dispositif servant a detecter les fuites dans un echangeur de chaleur |
| JP3017272B2 (ja) * | 1990-11-07 | 2000-03-06 | 株式会社ゼクセル | 熱交換器 |
| US5730209A (en) * | 1995-04-28 | 1998-03-24 | Air Products And Chemicals, Inc. | Defrost and liquid distribution for plate-fin heat exchangers |
| JPH116693A (ja) * | 1997-04-23 | 1999-01-12 | Denso Corp | 車両空調用熱交換器 |
| JP4081805B2 (ja) * | 1999-09-17 | 2008-04-30 | 株式会社デンソー | 熱交換器の修理方法 |
| JP2001182994A (ja) * | 1999-12-24 | 2001-07-06 | Fujitsu General Ltd | 空気調和機 |
| FR2823847B1 (fr) * | 2001-04-23 | 2003-09-05 | Tetra Laval Holdings & Finance | Procede et dispositif de detection de fuite dans un echangeur de chaleur, notamment a plaques |
| JP4922156B2 (ja) * | 2004-03-23 | 2012-04-25 | ヴェロシス インコーポレイテッド | マイクロチャネル装置における調整された均一なコーティング |
| US20070169916A1 (en) * | 2006-01-20 | 2007-07-26 | Wand Steven M | Double-wall, vented heat exchanger |
| US7779893B2 (en) * | 2006-08-22 | 2010-08-24 | Delphi Technologies, Inc. | Combination heat exchanger having an improved end tank assembly |
| FR2930632B1 (fr) * | 2008-04-28 | 2010-05-07 | Air Liquide | Procede de reparation d'un echangeur de chaleur a plaques |
| JP5128544B2 (ja) * | 2009-04-20 | 2013-01-23 | 株式会社神戸製鋼所 | プレートフィン熱交換器 |
-
2008
- 2008-04-28 FR FR0852845A patent/FR2930632B1/fr active Active
-
2009
- 2009-04-08 EP EP09742266.1A patent/EP2268992B1/fr not_active Not-in-force
- 2009-04-08 US US12/989,674 patent/US8782888B2/en not_active Expired - Fee Related
- 2009-04-08 CN CN200980115251.1A patent/CN102016481B/zh not_active Expired - Fee Related
- 2009-04-08 JP JP2011506746A patent/JP2011519014A/ja active Pending
- 2009-04-08 WO PCT/FR2009/050608 patent/WO2009136068A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009136068A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102016481A (zh) | 2011-04-13 |
| EP2268992B1 (fr) | 2014-05-07 |
| US8782888B2 (en) | 2014-07-22 |
| CN102016481B (zh) | 2012-07-04 |
| JP2011519014A (ja) | 2011-06-30 |
| US20110258853A1 (en) | 2011-10-27 |
| FR2930632A1 (fr) | 2009-10-30 |
| WO2009136068A1 (fr) | 2009-11-12 |
| FR2930632B1 (fr) | 2010-05-07 |
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