WO1995031682A1 - Welded plate heat exchanger and method for welding heat transfer plates to a plate heat exchanger - Google Patents
Welded plate heat exchanger and method for welding heat transfer plates to a plate heat exchanger Download PDFInfo
- Publication number
- WO1995031682A1 WO1995031682A1 PCT/SE1995/000554 SE9500554W WO9531682A1 WO 1995031682 A1 WO1995031682 A1 WO 1995031682A1 SE 9500554 W SE9500554 W SE 9500554W WO 9531682 A1 WO9531682 A1 WO 9531682A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat transfer
- transfer plates
- plate
- plates
- heat exchanger
- Prior art date
Links
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
- F28D9/0031—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 paired plates touching each other
- F28D9/0043—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 paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
- F28D9/005—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 paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
- F28F3/083—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning capable of being taken apart
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/14—Heat exchangers
-
- 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
- Y10T29/49373—Tube joint and tube plate structure
-
- 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
- Y10T29/49393—Heat exchanger or boiler making with metallurgical bonding
Definitions
- the present invention refers to a plate heat exchanger for heat transfer between two fluids, comprising at least a permanently joined module with several, princi ⁇ pally rectangular heat transfer plates equally distri ⁇ ubbed on each side of an imaginary centre plane of the module, which is parallel to the plane of the heat transfer plates, the heat transfer plates having inlet and outlet openings for respective fluids in their corn ⁇ er portions and a heat transfer portion located between respective inlet and outlet openings, in which an intermediate heat transfer plate has a weld against a first adjacent heat transfer plate, extending at least round said heat transfer portion and round the inlet and outlet openings for one of the fluids, and a weld against a second adjacent heat transfer plate, extending at least round said heat transfer portion and round the inlet and outlet openings for the second fluid.
- Permanently joined plate heat exchangers are known for instance by GB 0580368 and GB 2126703. These may be produced in shape of all-welded plate heat exchangers in such a way that the heat transfer plates first are welded together in pairs along an inner line and then two such pairs of plates are welded together along an outer line. An all-welded plate heat exchanger may also be produced in that several heat transfer plates are welded together simultaneously, however, the size of the plate heat exchanger becomes limited to the number of heat transfer plates, which presently may be welded simultaneously.
- modules composed of 10-20 heat transfer plates may be welded together. After testing the modules they are assembled to a complete plate heat exchanger by means of intermediate gaskets, which admit that the modules may be dismantled from each other and replaced with new in case of a possible defect.
- Such plate heat exchangers are previously known through SE 304 293 and WO 92/11501. The disadvantage with these is that the intermediate gaskets limit the applicability of the plate heat exchangers.
- the object of the present invention is to improve the technique to weld heat transfer plates together in a plate heat exchanger to reduce the above described con ⁇ sequence of the welding stresses to arise.
- the module is turned during welding before any serious curvature arises. Then the welding progresses from the other side of the module. This is repeated until the module is finished.
- the welding stresses will balance each other and their efforts to curve the module are eliminated.
- at least half of the welds of the heat transfer plates on each side of said centre plane is suitably done in direction towards said centre plane.
- all of the welds of the heat transfer plates on each side of said centre plane are done in direction towards said centre plane.
- the invention also refers to a method for welding several heat transfer plates to a plate heat exchanger, in which the heat transfer plates successively are welded against each other, and the welding is executed alternating from one and the other side of an imaginary centre plane of the module, which is parallel to the plane of the heat transfer plates.
- figure 1 shows a schematic side-view of a plate heat exchanger according to the invention
- figure 2 shows a schematic view of three heat transfer plates included in the plate heat exchanger according to figure 1.
- a plate heat exchanger 1 for heat transfer between two fluids comprising several perma ⁇ nently joined modules 2, with several on each side of an imaginary centre plane M of respective module, equally distributed principally rectangular heat transfer plates 3.
- the centre line M is located parallel to the plane of the heat transfer plates 3 and in the middle of the module.
- the plate heat exchanger 1 has passages 4 for respective fluids.
- the modules 2 are located in a conventional frame 5, comprising at least a front end plate 6 and a rear end plate 7, and several tightening bolts 8.
- the front end plate 6 has connections 9, communicating with the passages 4.
- FIG 2 three heat transfer plates 3A, 3B and 3C are shown, which by means of pressing is provided with a corrugation pattern 10, in shape of ridges and grooves.
- the ridges of alternating heat transfer plates abut against each other.
- the heat transfer plates are welded against each other and delimit in every second plate interspace 11 a flow space for the first fluid and in the remaining plate interspaces 12 flow spaces for the second fluid.
- the heat transfer plates have inlet and outlet openings 13 and 14 for respective fluids in their corner portions 15 and a heat transfer portion 16 loca ⁇ ted between respective inlet and outlet openings, in which an intermediate heat transfer plate 3B shows a weld 17A against a first adjacent heat transfer plate 3A, extending at least round said heat transfer portion 16 and round the inlet and the outlet openings 13 and 14 for one of the fluids and a weld 17B against a second adjacent heat transfer plate 3C, extending at least round said heat transfer portion 16 and round the inlet and the outlet openings 13 and 14 for the second fluid.
- the welds 17A and 17B are slightly displaced relatively each other, which does not appear in the schematic figure 2.
- the heat transfer plates 3 are elongated and mainly rec ⁇ tangular, although other shapes as round also are pos ⁇ sible, and are produced of thin metal plate, which by means of pressing is provided with a conventional corru ⁇ gation pattern.
- the inlet and outlet openings 13 and 14 for the first fluid are located at one long side of the heat transfer plates 3 and the inlet and outlet openings 13 and 14 for the second fluid are located at the other long side of the heat transfer plates 3, in case of a so called parallel flow. I.e. when the main flow directions for the fluids, flowing on each sides of the heat transfer plates, intend to be parallel. Naturally, the heat transfer plates 3 may also be adapted to diagonal flow if desired.
- the joining of the heat transfer plates 3 into a plate heat exchanger 1, is executed successively in that the plates are welded against each other alternating from one and the other side of an imaginary centre plane, which is parallel to the plane of the heat transfer plates 3.
- a finished plate heat exchanger 1, accor ⁇ ding to the invention at least one of the welds 17A or 17B of at least an adjacent pair of heat transfer plates 3 on each the side of said centre plane M is performed in direction towards said centre plane.
- the modules are turned during the welding before any seriously curvature has arisen. Then the welding is continued from the other side of the module. This is repeated until the module is finished. By turning the module the welding stresses will balance each other and their efforts to curve the module are eliminated.
- all of the welds of the heat transfer plates on each side of said centre plane are done in direction towards said centre plane. I.e. the welding is performed alternating from one and the other side of the centre plane.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/581,623 US5864112A (en) | 1994-05-18 | 1995-05-17 | Welded plate heat exchanger and method for welding heat transfer plates to a plate heat exchanger |
BR9506239A BR9506239A (pt) | 1994-05-18 | 1995-05-17 | Trocador de calor de placas e processo para a soldagem de várias placas de tranferência de calor em um trocador de calor de placas |
DK95920344T DK0706634T3 (da) | 1994-05-18 | 1995-05-17 | Svejset pladevarmeveksler og fremgangsmåde til svejsning af varmeoverførselsplader til en pladevarmeveksler |
DE69503587T DE69503587T2 (de) | 1994-05-18 | 1995-05-17 | Geschweisster plattenwärmetauscher und verfahren zum verschweissen von platten zu einem plattenwärmetauscher |
EP95920344A EP0706634B1 (en) | 1994-05-18 | 1995-05-17 | Welded plate heat exchanger and method for welding heat transfer plates to a plate heat exchanger |
JP52957995A JP3675478B2 (ja) | 1994-05-18 | 1995-05-17 | 溶接されたプレート型熱交換機及びプレート型熱交換機に熱伝達プレートを溶接する方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9401758A SE502779C2 (sv) | 1994-05-18 | 1994-05-18 | Svetsad plattvärmeväxlare och förfarande för svetsning av värmeöverföringsplattor till en plattvärmeväxlare |
SE9401758-9 | 1994-05-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995031682A1 true WO1995031682A1 (en) | 1995-11-23 |
Family
ID=20394087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1995/000554 WO1995031682A1 (en) | 1994-05-18 | 1995-05-17 | Welded plate heat exchanger and method for welding heat transfer plates to a plate heat exchanger |
Country Status (9)
Country | Link |
---|---|
US (1) | US5864112A ( ) |
EP (1) | EP0706634B1 ( ) |
JP (1) | JP3675478B2 ( ) |
CN (1) | CN1122813C ( ) |
BR (1) | BR9506239A ( ) |
DE (1) | DE69503587T2 ( ) |
DK (1) | DK0706634T3 ( ) |
SE (1) | SE502779C2 ( ) |
WO (1) | WO1995031682A1 ( ) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6378203B1 (en) * | 2000-03-07 | 2002-04-30 | Thermal Dynamics Corporation | Method of making fluid heat exchanger |
DE10035939A1 (de) * | 2000-07-21 | 2002-02-07 | Bosch Gmbh Robert | Vorrichtung zur Wärmeübertragung |
US6953598B2 (en) * | 2001-12-28 | 2005-10-11 | Wm. Wrigley Jr. Company | Dairy-based candy production utilizing plate and frame assembly |
JP2004216385A (ja) * | 2003-01-09 | 2004-08-05 | Hitachi Via Mechanics Ltd | レーザ穴明け加工方法 |
TW200712421A (en) * | 2005-05-18 | 2007-04-01 | Univ Nat Central | Planar heat dissipating device |
DE102007020187A1 (de) | 2007-04-28 | 2008-10-30 | Man Nutzfahrzeuge Ag | Plattenwärmetauscher |
US8043417B2 (en) * | 2008-06-30 | 2011-10-25 | Uop Llc | Column installed condenser |
KR101076220B1 (ko) * | 2011-05-04 | 2011-10-26 | 제이엔케이히터(주) | 공랭식 증기응축 설비용 증기 응축 전열관 블레이징 장치 |
CN104567487B (zh) * | 2013-10-21 | 2017-07-28 | 赵亨锡 | 焊接式板形热交换器 |
CN104972234B (zh) * | 2015-07-17 | 2017-04-26 | 上海科凌能源科技有限公司 | 用于印刷电路板式换热器激光焊接的工装 |
US20180103655A1 (en) * | 2016-10-18 | 2018-04-19 | Ferrara Candy Company | Hard Candy with Gummy Center and Systems and Methods for Making Same |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1248891B ( ) * | ||||
GB2167175A (en) * | 1984-11-21 | 1986-05-21 | Apv Int Ltd | Heat exchanger |
GB2215451A (en) * | 1986-11-06 | 1989-09-20 | Bavaria Anlagenbau Gmbh | A cross-flow plate heat exchanger |
WO1993004330A1 (fr) * | 1991-08-21 | 1993-03-04 | Packinox | Echangeur a plaques |
WO1993015369A1 (en) * | 1992-01-27 | 1993-08-05 | Alfa-Laval Thermal Ab | Welded plate heat exchanger |
EP0578933A1 (de) * | 1992-07-16 | 1994-01-19 | Tenez A.S. | Geschweisster Plattenwärmetauscher |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4603089A (en) * | 1983-11-21 | 1986-07-29 | Rockwell International Corporation | Laser welding of sandwich structures |
US4644129A (en) * | 1985-11-25 | 1987-02-17 | Avco Corporation | Apparatus and method for edge welding sheet metal |
US4940878A (en) * | 1988-12-15 | 1990-07-10 | Westinghouse Electric Corp. | Anisotropic resistivity material and method of making same |
US5437936A (en) * | 1991-05-13 | 1995-08-01 | Johnson; Jeffrey D. | Honeycomb core structure and method and apparatus relating thereto |
-
1994
- 1994-05-18 SE SE9401758A patent/SE502779C2/sv not_active IP Right Cessation
-
1995
- 1995-05-17 CN CN95190436A patent/CN1122813C/zh not_active Expired - Lifetime
- 1995-05-17 WO PCT/SE1995/000554 patent/WO1995031682A1/en active IP Right Grant
- 1995-05-17 DK DK95920344T patent/DK0706634T3/da active
- 1995-05-17 BR BR9506239A patent/BR9506239A/pt not_active IP Right Cessation
- 1995-05-17 EP EP95920344A patent/EP0706634B1/en not_active Expired - Lifetime
- 1995-05-17 US US08/581,623 patent/US5864112A/en not_active Expired - Lifetime
- 1995-05-17 JP JP52957995A patent/JP3675478B2/ja not_active Expired - Lifetime
- 1995-05-17 DE DE69503587T patent/DE69503587T2/de not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1248891B ( ) * | ||||
GB2167175A (en) * | 1984-11-21 | 1986-05-21 | Apv Int Ltd | Heat exchanger |
GB2215451A (en) * | 1986-11-06 | 1989-09-20 | Bavaria Anlagenbau Gmbh | A cross-flow plate heat exchanger |
WO1993004330A1 (fr) * | 1991-08-21 | 1993-03-04 | Packinox | Echangeur a plaques |
WO1993015369A1 (en) * | 1992-01-27 | 1993-08-05 | Alfa-Laval Thermal Ab | Welded plate heat exchanger |
EP0578933A1 (de) * | 1992-07-16 | 1994-01-19 | Tenez A.S. | Geschweisster Plattenwärmetauscher |
Also Published As
Publication number | Publication date |
---|---|
SE9401758L (sv) | 1995-11-19 |
JPH09500958A (ja) | 1997-01-28 |
DE69503587D1 (de) | 1998-08-27 |
CN1122813C (zh) | 2003-10-01 |
SE9401758D0 (sv) | 1994-05-18 |
JP3675478B2 (ja) | 2005-07-27 |
US5864112A (en) | 1999-01-26 |
DK0706634T3 (da) | 1998-11-09 |
EP0706634A1 (en) | 1996-04-17 |
BR9506239A (pt) | 1997-08-12 |
DE69503587T2 (de) | 1998-11-26 |
CN1128562A (zh) | 1996-08-07 |
EP0706634B1 (en) | 1998-07-22 |
SE502779C2 (sv) | 1996-01-08 |
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