DK150956B - HEAT EXCHANGES WITH MULTIPLE CIRCUITS - Google Patents
HEAT EXCHANGES WITH MULTIPLE CIRCUITS Download PDFInfo
- Publication number
- DK150956B DK150956B DK525882A DK525882A DK150956B DK 150956 B DK150956 B DK 150956B DK 525882 A DK525882 A DK 525882A DK 525882 A DK525882 A DK 525882A DK 150956 B DK150956 B DK 150956B
- Authority
- DK
- Denmark
- Prior art keywords
- pipe
- heat
- tubes
- heat exchanger
- cooler
- 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
- 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
- F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
- F28D7/0083—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium
- F28D7/0091—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium the supplementary medium flowing in series through the units
-
- 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
- F28D7/0058—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 only one medium being tubes having different orientations to each other or crossing the conduit for the other heat exchange medium
-
- 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
- F28F9/02—Header boxes; End plates
- F28F9/0236—Header boxes; End plates floating elements
- F28F9/0241—Header boxes; End plates floating elements floating end plates
-
- 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
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
- F28D2021/0082—Charged air coolers
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)
Description
150956 i150956 i
Opfindelsen angår en varmeveksler med mindst to rørbundter, hvor rørene gennemstrømmes af en væskeformet varmebærer og omstrømmes i tværstrøm af en gasformet varmebærer, og hvor rørenderne fastholdes i rørbunde, der begrænses af væskekamre, og den 5 flydende varmebærer med forskelligt temperaturniveau tilføres til de nævnte mindst to rørbundter.BACKGROUND OF THE INVENTION The invention relates to a heat exchanger having at least two pipe bundles in which the pipes are flowed by a liquid heat carrier and flowed transversely by a gaseous heat carrier and the pipe ends are held in pipe bottoms which are limited by liquid chambers and the liquid heat carrier is supplied with at least the different temperature levels. two pipe bundles.
Sådanne varmevekslere anvendes f.eks. som ladeluftkølere til trykladede forbrændingsmotorer. Ved dieselmotorer, der f.eks. anvendes som skibsmotorer, anvendes som flydende varmebærer -i 10 dette tilfælde som kølemedium - sædvanligvis havvand eller flodvand.Such heat exchangers are used e.g. as charge air coolers for pressurized internal combustion engines. For diesel engines which, e.g. used as ship engines, used as liquid heat carrier -in this case as a refrigerant - usually seawater or river water.
Til optimal energiudnyttelse ønskes det ofte, at også varmt vand, der står til rådighed, anvendes som kølemiddel. Ladeluftkøleren arbejder i sådanne tilfælde med to separate kredsløb, nemlig sædvanligvis med et varmtvandskredsløb og et koldtvandskredsløb. Sådanne apparater kan 15 også anvendes til at forvarme luften ved igangsætning af motoren, i hvilket tilfælde kun varmtvandskredsløbet er i drift. Der vil således i et og samme apparat optræde forskellige varmeudvidelser, der skal imødegås ved særlige foranstaltninger.For optimum energy utilization, it is often desired that even hot water available is used as a refrigerant. The charge air cooler in such cases operates with two separate circuits, namely usually with a hot water circuit and a cold water circuit. Such apparatus can also be used to preheat the air when the engine is started, in which case only the hot water circuit is in operation. Thus, different heat expansions will occur in the same apparatus, which must be met by special measures.
Formålet med den i krav 1's kendetegnende del definerede 20 opfindelse er med enkle midler og med sikkerhed at eliminere termodynamisk betingede rørspændinger ved varmevekslere af den indledningsvis nævnte art, der arbejder med flydende varmebærere med forskellige temperaturer.The object of the invention defined in the characterizing part of claim 1 is by simple means and with certainty to eliminate thermodynamically conditional pipe voltages by heat exchangers of the type mentioned above, which work with liquid heat carriers of different temperatures.
På tegningen er en udførelsesform for varmeveksleren ifølge 25 opfindelsen anskueliggjort. På tegningen viser:In the drawing, an embodiment of the heat exchanger according to the invention is illustrated. In the drawing:
Fig. 1 et skematisk billede af et snit gennem en varmeveksler i monteret tilstand, fig. 2 et perspektivisk billede af varmeveksleren med delene trukket ud fra hinanden, og 30 fig. 3 et perspektivisk billede af den samme varme veksler i monteret stilling.FIG. 1 is a schematic view of a section through an assembled heat exchanger; 2 is a perspective view of the heat exchanger with the parts pulled apart, and FIG. 3 is a perspective view of the same heat exchanger in the mounted position.
I tegningens figurer er ens dele forsynede med samme henvisningstal. Dele, der ikke er af betydning for opfindelsen, såsom forskruninger og tilslutningsledningerne for den flydende varmebæ-35 rer, er udeladt. Varmebærernes strømningsretning er vist med pile.In the drawings, like parts are provided with the same reference numerals. Parts which are not of importance to the invention, such as screws and the liquid heat carrier connection lines, are omitted. The flow direction of the heat carriers is shown by arrows.
Den i fig. 1 viste varmeveksler er en ladeluftkøler i sin enkleste form, således som den anvendes ved trykladede forbrændingsmotorer. Den flydende varmebærer, i det foreliggende tilfælde et kølemiddel i form af vand, føres i et varmtvandskredsløb og adskilt 150956 2 herfra i et koldtvandskredsløb. Det kolde vand når i pil retningen ind i vandkammeret 1', gennemstrømmer under varmeoptagelse rørene 2' i bundtet 2, omledes i vandrummet 3' ved hjælp af et ikke vist ledeorgan, gennemstrømmer under yderligere varmeoptagelse rørene 2“ i 5 det samme rørbundt 2 i modstrøm og forlader over vandkammeret 1" køleren i den viste pilretning.The FIG. 1 is a charge air cooler in its simplest form, as used with pressurized internal combustion engines. The liquid heat carrier, in this case a refrigerant in the form of water, is fed into a hot water circuit and separated from it in a cold water circuit. The cold water reaches in the direction of the water chamber 1 'in the arrow chamber, flows through the pipes 2' in the bundle 2 during the heat-up, is diverted into the water space 3 'by means of a guide (not shown), the pipes 2' in 5 flow through the same pipe bundle 2 in 5. countercurrent and exits over the water chamber 1 ”cooler in the arrow direction shown.
Det varme vand, der kan have en temperatur på 60-120°C, indføres i køleren ved samme side af denne som det kolde vand og gennemstrømmer også et tilsvarende kredsløb, hvor de gennemstrøm-10 mede elementer ligeledes udgøres af vandkamre 4*, 4", rør 5‘, 5" i rørbundtet 5 og et vandrum 6.The hot water, which can have a temperature of 60-120 ° C, is introduced into the cooler at the same side of it as the cold water and also flows through a corresponding circuit, where the flowing elements are also constituted by water chambers 4 *, 4 ", pipe 5 ', 5" in the pipe bundle 5 and a water chamber 6.
Den gasformede varmebærer, i dette tilfælde varm komprimeret luft, indføres i køleren gennem tilgangsluftledningen 7 og forlader køleren over afgangsluftledningen 8. Rørbundterne 2,5 om-15 strømmes herunder i tværstrøm. Under gennemstrømningen gennem køleren ledes luften, der skal afkøles, gennem strømningskanaler, der dannes af nær hinanden anbragte ribber 9. Disse ribber er af hensyn til overskueligheden kun vist delvis og kan både bestå af gennemgående pladeribber, som samtlige rør i et bundt strækker sig igennem, 20 og af ringplader, der er anbragt på de enkelte rør.The gaseous heat carrier, in this case hot compressed air, is introduced into the cooler through the supply air conduit 7 and leaves the cooler over the exhaust air conduit 8. The pipe bunds 2.5 are flowed below in cross flow. During the flow through the cooler, the air to be cooled is conducted through flow ducts formed by closely spaced ribs 9. For the sake of clarity, these ribs are only partially shown and can both consist of through-plate ribs through which all pipes in a bundle extend through , 20 and of ring plates mounted on the individual tubes.
Der vælges, som vist, hensigtsmæssigt en tværgennemstrømning gennem køleren, d.v.s. at den varme luft først omstrømmer de rør 5", i hvilke kølevandet har den højeste temperatur, og med fremadskridende køling omstrømmes stadigt koldere rør 5" -5- 2" ·» 2'.As shown, a transverse flow through the cooler, i.e. that the hot air first flows through the pipes 5 ", in which the cooling water has the highest temperature, and with progressive cooling, increasingly colder pipes 5" -5-2 "are flooded.
25 Som det ses i fig. 3, er kølerkonstruktionen ifølge op findelsen således indrettet, at de strømningsbegrænsende sidevægge 12,13 sammenskrues direkte med rørbundene 10,11 til en kasse, hvorved der opnås den fordel, at en særskilt bærerramme er unødvendig. Tilgangsluft- og afgangsluftledningerne 7,8 fastgøres langs sidekan-30 terne af rørbundene 10,11 og sidevæggene 12,13 ved hjælp af de antydede forskruninger 14.25 As seen in FIG. 3, the radiator structure according to the invention is arranged so that the flow limiting side walls 12,13 are directly screwed together with the pipe bottoms 10,11 to a box, thereby obtaining the advantage that a separate support frame is unnecessary. The supply air and outlet air lines 7,8 are secured along the side edges of the pipe bottoms 10,11 and the side walls 12,13 by means of the indicated screws 14.
De to rørbundter belastes termodynamisk forskelligt under kølerens drift. Rørbundtet 5 bestryges både med varmluft og med varmtvand, medens rørbundtet 2 gennemstrømmes af koldtvand og 35 omstrømmes af forkølet luft. De to rørbundters længdeudvidelser afviger således stærkt fra hinanden.The two pipe bundles are thermodynamically charged differently during the operation of the cooler. The tube bundle 5 is coated both with hot air and with hot water, while the tube bundle 2 is flooded with cold water and 35 is flooded with cold air. The length extensions of the two tubes thus differ greatly from each other.
Rørbundenes afstand fra hinanden bestemmes af bredden af de fast indspændte sidevægge, der ligeledes udsættes for varmeud-videlser, men alligevel skal det princip bibeholdes, at sidevæggene 150956 3 12,13 og luftledningerne 7,8 skal fastgøres til en og samme tilslutningsplade, her rørbunden 10 henholdsvis 11.The spacing of the tubes is determined by the width of the fixed clamped sidewalls, which are also subject to heat expansion, but still the principle must be maintained that the sidewalls 150,123 and the air ducts 7,8 must be fixed to one and the same connection plate, here the tubular floor 10 and 11, respectively.
Ved stift indspændte rør ville det "varme" rørbundt 5 udsættes for en for stor trykbelastning, hvorimod det "kolde" rør-5 bundt 2 ville blive udsat for utilladelige trækbelastninger.With rigidly clamped tubes, the "hot" tube bundle 5 would be subjected to excessive compressive loading, whereas the "cold" tube bundle 2 would be subjected to unacceptable tensile loads.
Ved hjælp af opfindelsen løses dette problem under bibeholdelse af det princip, ved hvilket rørbundene indspændes stift.By means of the invention, this problem is solved while retaining the principle by which the tube bottoms are tightly clamped.
Hertil er rørene i hvert bundt 2 henholdsvis 5 ved deres ene ende indvalsede i rørbundene 10 henholdsvis 11, der har en bærende 10 funktion, medens de ved deres anden ende er anbragte i rørbunde 10' henholdsvis 11', som ikke kan udøve kraftpåvirkninger pi kølerkonstruktionen.To this end, the tubes in each bundle 2 and 5, respectively, at their one end are rolled into the tubes 10 and 11, respectively, which have a supporting 10, while at their other end they are arranged in tubes 10 'and 11', respectively, which cannot exert force effects on the radiator structure. .
I fig. 2 ses de sidstnævnte "bevægelige" rørbunde 10', 11', der er dimensionerede på en sådan måde, at der er tilstrækkelig plads 15 til påskruning af dæksler 1,6 for vandkamrene (fig. 3).In FIG. 2, the latter "movable" tube bottoms 10 ', 11' are dimensioned in such a way that there is sufficient space 15 for screwing on covers 1.6 for the water chambers (Fig. 3).
For at kølerens længde i rørretningen ikke skal blive større end længden af en varmeveksler med ved begge ender stift indspændte rørbundter, har de bærende rørbunde 10,11 passende dimensionerede udsparinger 15,16 til optagelse, føring og lejring af de bevæge-20 lige rørbunde 10',11' (fig. 2).In order that the length of the cooler in the pipe direction should not be greater than the length of a heat exchanger with rigidly clamped pipe bundles at both ends, the supporting tubes 10,11 have suitably sized recesses 15,16 for receiving, guiding and storing the movable tubes 10 ', 11' (fig. 2).
Der kan under hensyn til de senere optrædende udvidelser vælges sådanne rørlængder for begge rørbundterne, at de mod luftkanalen vendende sider af rørbundene 10,11' henholdsvis 10',11 under kølerens drift flugter med hinanden og således danner strømnings-25 gunstige glatte vægflader.Due to the later expansions, such pipe lengths can be selected for both pipe bundles so that the sides facing the air duct 10,11 'and 10', 11 ', respectively, flush with each other during the operation of the cooler, thus forming flow smooth favorable wall surfaces.
Dersom man ikke vælger sådanne forskellige rørlængder, hvilket ikke vil forringe funktionsdygtigheden af varmeveksleren ifølge opfindelsen, vil det i fig. 2 og 3 ses, at køleren består af to ens elementer 1,10',2,11,3 henholdsvis 4,10,5,11',6, der blot skal 30 skydes ind i hinanden og sammenskrues med sidevæggene 12,13 og luftledningerne 7,8.If such different pipe lengths are not selected, which will not impair the operation of the heat exchanger according to the invention, it will be shown in FIG. 2 and 3, it is seen that the cooler consists of two identical elements 1,10 ', 2,11,3 and 4,10,5,11', 6, which are merely to be pushed into each other and screwed together with the side walls 12,13 and the overhead lines 7,8.
For at forhindre komprimeret luft i at undslippe fra køleren føres de bevægelige rørbunde 10*, 111 gastæt i deres udsparinger 15,16. Hertil har rør bundenes sidekanter noter, hvori der indlægges 35 tætningsorganer, f.eks. runde tætningslister 17.To prevent compressed air from escaping from the cooler, the movable tubes 10 *, 111 are gas-tight in their recesses 15,16. To this end, the tube side edges of the bottoms have grooves in which 35 sealing means, e.g. round sealing strips 17.
Varmeveksleren kan også tænkes udført som et flerstrømsapparat, f.eks. med tre eller fire i luftens strømningsretning efter hinanden anbragte rørbundter. Heller ikke tværstrømsføringen af varmebærerne og kølemidlets tilførsel og bortledning ved samme ende 4 150956 ér én bétingélsé. Endvidere vil apparatet i stedet for· at virke som køler virke lige så godt som forvarmer for et gasformet arbejdsmedi-um. Hertil behøver kun koldtvandskredsløbet være sat ud af drift.The heat exchanger may also be conceived as a multi-current apparatus, e.g. with three or four in the flow direction of the air arranged one after the other. Neither does the cross flow of the heat carriers and the refrigerant supply and discharge at the same end 4 150956 ér one bétingélsé. Furthermore, instead of acting as a cooler, the apparatus will work just as well as preheater for a gaseous working medium. For this, only the cold water circuit needs to be switched off.
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH760681 | 1981-11-27 | ||
| CH760681 | 1981-11-27 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK525882A DK525882A (en) | 1983-05-28 |
| DK150956B true DK150956B (en) | 1987-09-28 |
| DK150956C DK150956C (en) | 1988-03-28 |
Family
ID=4327763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK525882A DK150956C (en) | 1981-11-27 | 1982-11-25 | HEAT EXCHANGES WITH MULTIPLE CIRCUITS |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0080742B1 (en) |
| DE (1) | DE3260735D1 (en) |
| DK (1) | DK150956C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5584340A (en) * | 1995-08-07 | 1996-12-17 | Heatcraft Inc. | Heat exchanger with flexible tube support |
| DE19545308A1 (en) * | 1995-12-05 | 1997-06-12 | Asea Brown Boveri | Convective counterflow heat transmitter |
| FR2769697B1 (en) * | 1997-10-10 | 1999-12-31 | Soc Et Et De Const Aero Navale | HEAT EXCHANGER OF THE ORTHOGONAL CROSSING TYPE OF TWO FLUIDS |
| GB2451848A (en) * | 2007-08-14 | 2009-02-18 | Arctic Circle Ltd | Multiple circuit heat exchanger comprising tube bundles |
| US20100126704A1 (en) * | 2008-11-24 | 2010-05-27 | Caterpillar Inc. | Heat Exchanger with Direct Flow Path Modules |
| BE1020355A3 (en) * | 2011-11-28 | 2013-08-06 | Atlas Copco Airpower Nv | COMBINATION HEAT EXCHANGER AND DEVICE THAT IS EQUIPPED. |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB392378A (en) * | 1932-01-07 | 1933-05-18 | Bergedorfer Eisenwerk Ag | Tubular refrigerant condenser applicable also for cooling liquids and more particularly milk |
| DE879701C (en) * | 1942-11-10 | 1953-06-15 | Koppers Gmbh Heinrich | Heat exchanger |
| DE1241932B (en) * | 1964-02-04 | 1967-06-08 | Ind Companie Kleinewefers Kons | Hanging recuperator with tubes arranged perpendicular to the flow direction of the heating gases, in particular only bent or bent in this direction |
| NO128499B (en) * | 1971-02-23 | 1973-11-26 | Sanne & Wendel As | |
| CH535417A (en) * | 1972-07-05 | 1973-03-31 | Bbc Brown Boveri & Cie | Modular heat exchanger assemblies - for load matching at minimum cost |
| FR2443573A1 (en) * | 1978-12-08 | 1980-07-04 | Renault Vehicules Ind | COOLING CIRCUIT OF SUPERCHARGED ENGINES |
-
1982
- 1982-09-30 DE DE8282201225T patent/DE3260735D1/en not_active Expired
- 1982-09-30 EP EP19820201225 patent/EP0080742B1/en not_active Expired
- 1982-11-25 DK DK525882A patent/DK150956C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DK525882A (en) | 1983-05-28 |
| DE3260735D1 (en) | 1984-10-18 |
| EP0080742B1 (en) | 1984-09-12 |
| EP0080742A2 (en) | 1983-06-08 |
| EP0080742A3 (en) | 1983-07-06 |
| DK150956C (en) | 1988-03-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |