EP0435839A2 - Echangeur de chaleur et sa méthode de fabrication - Google Patents
Echangeur de chaleur et sa méthode de fabrication Download PDFInfo
- Publication number
- EP0435839A2 EP0435839A2 EP90850424A EP90850424A EP0435839A2 EP 0435839 A2 EP0435839 A2 EP 0435839A2 EP 90850424 A EP90850424 A EP 90850424A EP 90850424 A EP90850424 A EP 90850424A EP 0435839 A2 EP0435839 A2 EP 0435839A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- tubes
- heat exchanger
- rings
- 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.)
- Granted
Links
Images
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
- F28D7/02—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 helically coiled
- F28D7/024—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 helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
Definitions
- This invention is related to heat exchangers of the kind that includes pipes or tubes extending between two tube plates, and with one fluid streaming inside the tubes and another outside the tubes.
- the tube package or heat exchanger core is surrounded by a shell.
- the object of the invention is to provide a heat exchanger with an angular progression for the tubes that can be fabricated comparatively simple and with a minimum of manual labor. It is also the object of the invention to provide a space efficient heat exchanger, this since heat exchangers of this type, that is with more or less straight tubes and tube plates in each end tend to be less space efficient than other types, and for many appliances they become unpractically long.
- Another object of the invention is also to provide a simple fabrication method for this type of heat exchanger. This is achieved by arrangeing straight tubes ring- or cylinderwise and then turning each entire cylinder or ring of tubes in one simultaneous motion.
- the heat exchanger is constituted by several concentric rings of tubes, that can be turned in the same direction or in different directions.
- each ring is turned separately beginning with the innermost ring.
- the inner tube circles have a greater progression or turning angle than the outer ones.
- the rings of tubes are turned the diameter of the tube circles tend to diminish and a good grip is therefor achieved for the inner circle on a center core tube and for the outer circles on the inner ones. In this way a very compact packing of the tubes in the heat exchanger can be achieved in a simple manner and it should perhaps also be mentioned that this package will even hold together of its own accord when released from the machine that turns the tube circles.
- the end of the bundle are machined to the desired shape (normally flat).
- the tubes are then in their ends expanded so that no space will be left between them and the tubes can then be welded or soldered to each other so that a tube plate is achieved. Expansion and soldering can be carried out ringwise or simultaneous or in a close timed sequence.
- the tubes can be located on two rings of axially directed pins each tube ring at a turn and when each tube in a ring is in place it is turned and given its intended angular progression at the same time as the length is correspondingly reduced and then the next circular set of pins is used to set up the next layer etc.
- the locating of the tubes can be done by hand or by a simple robot. The demands on precision in fabrication is reduced in relation to the known art and the inventive method will thus provide a cost efficient fabrication method and a space efficient heat exchanger.
- Fig 1 shows schematically a heat exchanger in accordance with the invention
- fig 2 the tube plate end of a tube bundle
- fig 3 shows schematically a coupling scheme of heat exchangers in accordance with the invention used in a device at a municipal heating network
- figs 4 and 5 shows the compact actual arrangement of the device
- fig 6 shows an embodiment of the tube as used in the invention.
- the heat exchanger shown in fig 1 and 2 includes two concentric circles of corrugated tubes, where the inner tubes have been designated by 1 and the outer by 2.
- the tubes 1 and 2 are in their ends widend as is shown for some tubes 11 and 21 in dashed lines so that they contact each other and they are soldered to each other, constituting a tube plate.
- a distributing/collecting connection 5 is arranged over the two plates 4 transporting the medium that is to be led through the tubes to and from these.
- the tubes or rather the bundle of tubes are further surrounded over a greater part of their length by a shell 3.
- the shell 3 is in its ends provided with connections 6 surrounding the shell and in turn provided with connections 7 for the medium that is to stream around the tubes inside the shell.
- the shell 3 extends a short distance into the connections 6. In this way the entering/leaving medium will be distributed around the tube bundle more efficiently than if the shell only had extended to the connections 6. This in turn reduces the risk of internal heat differences and thereby caused tensions.
- the arrangement of the tubes will secure a good turbulence around the tubes and since tubes will enter on one location in one tube plate and come out at another location in the other tube plate possible laminations in the entrance flow will effectively be broken up, also enhancing performance.
- a blind tube 8 is located in the centre. The only object of this is to fill up a certain space in the heat exchanger and it can be connected either via a tube plate to the inner medium or being provided with openings towards the outer medium surrounding the tubes.
- the blind tube 8 is however only fastened to one tube plate so that the possible movements of the heat exchanger core are not hindered by this tube.
- the heat exchanger tubes 1 and 2 are when fabricated turned ringwise.
- the tubes are corrugated lengthwise (see fig 7) or perhaps one should say profiled crosswise by being compressed laterally in alternating directions (preferably by 90°), giving an alternating flattening of the tubes. This improves the turbulence inside the tubes and contributes to an increased heat exchange.
- the flow conditions outside the tubes will be improved by this and in particular the flow resistance for the outer medium will be reduced.
- a ring of tubes turned in the above indicated way will even without an inner core be stable so if one so wishes the different rings could be fabricated separately and then brought together. Since the ring of tubes contract on turning the ends of the tubes will have a larger diameter than the tube bundle and therefor before soldering the tubes to each other the ends of the tube bundle is compressed to the diameter of the bundle so that a close fitting, by pass preventing shell can be used.
- connection 6 can be used to by-pass the heat exchanger with yet another heat exchanger since a flow across and through the connections 6 past the tubes will have very little influence on the efficiency of the heat exchangers. This will in turn faciliate the building of very compact heat exchanger centrals, as they for instance are used in individual houses in a municipal heating net work, and this will be shown in figs 3, 4 and 5, and described below.
- the bellowlike dashed part 9 between the shell 3 and the connection 5 further improves the resilience so that the heat exchanger can cope even better with possible heat tensions that can result between the tube bundle and the heat exchanger shell and the connections of this.
- mandrels of a suitable shape are pressed into the tubes. This can be done in one step or in consecutive steps for instance one step for each ring to a configuration as shown at 11 and 21 in fig 2.
- the tubes are widened over a sufficient stretch to allow for the solder to give a good connection. This soldering can be carried out by a robot. Since copper is the most commonly used material this shapening of the tube ends will not constitute any problem. In case the different rings of tubes are angled or turned separately and then mounted together of course also the shapeing of the ends can take place before the different layers of tubes are mounted together, but preferably it can be carried out on the tube core as a unit.
- the mandrels used to widen the tubes are preferably prismatically chamfered or diminishing towards their front end in order to give a soft shapening of the tubes.
- the turning of the tubes as well as the shapeing of their ends can be carried out by hydraulic, mechanical or other means.
- FIG. 3-5 an embodiment of a heating device based on the invention is shown for the use in the separate houses in a municipal heating network.
- the exchanger device mainly is constituted of four heat exchangers as described above. Two of these heat exchangers 20, 21 are coupled in series and with an opposed flow direction for both of them for the heating of the water in the heating system of the house. The other two heat exchangers 22 and 23 are used to heat the hot water going to taps in the houses. An additional connection allows circulation of the hot water in the house, securing that hot water is swiftly obtained at each tap in the house.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8904369A SE8904369L (en) | 1989-12-27 | 1989-12-27 | Arrangement and mfr. of shell and tube heat exchanger - with helically wound corrugated tubes, angle of helical progression need not be calculated |
SE8904369 | 1989-12-27 | ||
SE9001194 | 1990-04-02 | ||
SE9001194A SE9001194D0 (sv) | 1990-04-02 | 1990-04-02 | Vaermevaexlaranordning |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0435839A2 true EP0435839A2 (fr) | 1991-07-03 |
EP0435839A3 EP0435839A3 (en) | 1991-11-27 |
EP0435839B1 EP0435839B1 (fr) | 1995-07-12 |
Family
ID=26660676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90850424A Expired - Lifetime EP0435839B1 (fr) | 1989-12-27 | 1990-12-21 | Echangeur de chaleur et sa méthode de fabrication |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0435839B1 (fr) |
AT (1) | ATE125033T1 (fr) |
DE (1) | DE69020876T2 (fr) |
DK (1) | DK0435839T3 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994023256A1 (fr) * | 1993-03-31 | 1994-10-13 | Pluto | Echangeur de chaleur a tubes et procede de production de ses elements echangeurs de chaleur |
WO1997049962A1 (fr) * | 1996-06-22 | 1997-12-31 | Dickgreber, Johannes | Echangeur de chaleur |
GB2344161A (en) * | 1998-11-27 | 2000-05-31 | Usui Kokusai Sangyo Kk | Exhaust gas cooler |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2701788C1 (ru) * | 2019-05-31 | 2019-10-01 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Национальный исследовательский Мордовский государственный университет им. Н.П. Огарёва" | Теплообменник |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2081043A (en) * | 1933-03-13 | 1937-05-18 | Air Liquide | Heat exchanger |
FR79026E (fr) * | 1961-01-12 | 1962-10-13 | échangeur de chaleur à surface d'échange rainurée | |
US3256932A (en) * | 1963-01-03 | 1966-06-21 | Babcock & Wilcox Co | Heat exchanger tube arrangement |
FR1523859A (fr) * | 1967-05-19 | 1968-05-03 | Richmond Engineering Company | échangeur thermique |
DE1501684A1 (de) * | 1964-05-20 | 1969-06-26 | Waagner Biro Ag | Waermetauscher |
GB1200416A (en) * | 1967-01-24 | 1970-07-29 | Cockerill Ougree Providence Sa | Tubular heat exchangers |
DE2608623A1 (de) * | 1976-03-02 | 1977-09-15 | Becker Apparatebau Geb | Vorrichtung zum abkuehlen von hochviskosen medien oder medien mit hochviskosen oder festen bestandteilen, insbesondere maische |
FR2392349A1 (fr) * | 1977-05-27 | 1978-12-22 | Pfaudler Werke Ag | Echangeur de chaleur emaille |
FR2404187A1 (fr) * | 1977-09-23 | 1979-04-20 | Quiri & Cie Usines | Echangeur de chaleur a faisceau spirale et son procede de fabrication |
EP0342959A1 (fr) * | 1988-05-19 | 1989-11-23 | York International Ltd | Echangeur de chaleur |
-
1990
- 1990-12-21 AT AT90850424T patent/ATE125033T1/de not_active IP Right Cessation
- 1990-12-21 DK DK90850424.4T patent/DK0435839T3/da active
- 1990-12-21 EP EP90850424A patent/EP0435839B1/fr not_active Expired - Lifetime
- 1990-12-21 DE DE69020876T patent/DE69020876T2/de not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2081043A (en) * | 1933-03-13 | 1937-05-18 | Air Liquide | Heat exchanger |
FR79026E (fr) * | 1961-01-12 | 1962-10-13 | échangeur de chaleur à surface d'échange rainurée | |
US3256932A (en) * | 1963-01-03 | 1966-06-21 | Babcock & Wilcox Co | Heat exchanger tube arrangement |
DE1501684A1 (de) * | 1964-05-20 | 1969-06-26 | Waagner Biro Ag | Waermetauscher |
GB1200416A (en) * | 1967-01-24 | 1970-07-29 | Cockerill Ougree Providence Sa | Tubular heat exchangers |
FR1523859A (fr) * | 1967-05-19 | 1968-05-03 | Richmond Engineering Company | échangeur thermique |
DE2608623A1 (de) * | 1976-03-02 | 1977-09-15 | Becker Apparatebau Geb | Vorrichtung zum abkuehlen von hochviskosen medien oder medien mit hochviskosen oder festen bestandteilen, insbesondere maische |
FR2392349A1 (fr) * | 1977-05-27 | 1978-12-22 | Pfaudler Werke Ag | Echangeur de chaleur emaille |
FR2404187A1 (fr) * | 1977-09-23 | 1979-04-20 | Quiri & Cie Usines | Echangeur de chaleur a faisceau spirale et son procede de fabrication |
EP0342959A1 (fr) * | 1988-05-19 | 1989-11-23 | York International Ltd | Echangeur de chaleur |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994023256A1 (fr) * | 1993-03-31 | 1994-10-13 | Pluto | Echangeur de chaleur a tubes et procede de production de ses elements echangeurs de chaleur |
WO1997049962A1 (fr) * | 1996-06-22 | 1997-12-31 | Dickgreber, Johannes | Echangeur de chaleur |
GB2344161A (en) * | 1998-11-27 | 2000-05-31 | Usui Kokusai Sangyo Kk | Exhaust gas cooler |
Also Published As
Publication number | Publication date |
---|---|
DK0435839T3 (da) | 1995-11-20 |
EP0435839B1 (fr) | 1995-07-12 |
ATE125033T1 (de) | 1995-07-15 |
EP0435839A3 (en) | 1991-11-27 |
DE69020876D1 (de) | 1995-08-17 |
DE69020876T2 (de) | 1996-04-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5213156A (en) | Heat exchanger and a method for its fabrication | |
US3720259A (en) | Tubular heat exchanger supporting and spacer structure | |
US8251133B2 (en) | Helical coil-on-tube heat exchanger | |
US4313491A (en) | Coiled heat exchanger | |
AU678620B2 (en) | Heat exchanger | |
US20150300746A1 (en) | Heat exchanger tube and heat exchanger employing the same | |
US4602674A (en) | Two-circuit heat exchanger | |
US5472047A (en) | Mixed finned tube and bare tube heat exchanger tube bundle | |
AU2006249166A1 (en) | Heat exchanger | |
US3232344A (en) | Heat exchangers, pre-heaters, economizers and the like | |
JP2003156294A5 (fr) | ||
CA2416970A1 (fr) | Supports de tube d'echangeur de chaleur a circulation directe | |
SK64799A3 (en) | Heat-exchanger coil assembly | |
EP0435839A2 (fr) | Echangeur de chaleur et sa méthode de fabrication | |
GB2029563A (en) | Heat exchanger tube bundle | |
EP0203104A4 (fr) | Chaudiere a absorption thermique amelioree. | |
EP0002823A1 (fr) | Echangeur de chaleur à faisceau tubulaire et procédé de fabrication | |
US2539886A (en) | Tubeflo section | |
CN1337001A (zh) | 盘旋热交换器和制造该盘旋热交换器的方法 | |
US20080047698A1 (en) | Advanced gravity-film & double-helix heat exchangers ("gfx+™ & "dhx™") | |
JP2003329375A5 (fr) | ||
JP2006162204A (ja) | 給湯器用熱交換器 | |
EP4090901A1 (fr) | Dispositif d'échange d'énergie entre milieux à structure et performances améliorées | |
IE890476L (en) | Central heating installation having domestic hot water¹circuit | |
GB2137332A (en) | Improvements in or relating to heat exchangers |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE |
|
17P | Request for examination filed |
Effective date: 19920525 |
|
17Q | First examination report despatched |
Effective date: 19930122 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 19950712 Ref country code: CH Effective date: 19950712 Ref country code: LI Effective date: 19950712 Ref country code: BE Effective date: 19950712 Ref country code: FR Effective date: 19950712 Ref country code: ES Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19950712 Ref country code: AT Effective date: 19950712 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19950712 |
|
REF | Corresponds to: |
Ref document number: 125033 Country of ref document: AT Date of ref document: 19950715 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 69020876 Country of ref document: DE Date of ref document: 19950817 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 |
|
EN | Fr: translation not filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19951221 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19951231 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19951221 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20011126 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20011212 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DK Payment date: 20011214 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20011227 Year of fee payment: 12 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20021222 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030131 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030701 Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030701 |
|
EUG | Se: european patent has lapsed | ||
REG | Reference to a national code |
Ref country code: DK Ref legal event code: EBP |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20030701 |