DK151512B - HEAT EXCHANGE - Google Patents
HEAT EXCHANGE Download PDFInfo
- Publication number
- DK151512B DK151512B DK403779AA DK403779A DK151512B DK 151512 B DK151512 B DK 151512B DK 403779A A DK403779A A DK 403779AA DK 403779 A DK403779 A DK 403779A DK 151512 B DK151512 B DK 151512B
- Authority
- DK
- Denmark
- Prior art keywords
- channel
- tubes
- medium
- heat exchanger
- media stream
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
-
- 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
- F28D7/08—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 otherwise bent, e.g. in a serpentine or zig-zag
-
- 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
- F28D7/08—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 otherwise bent, e.g. in a serpentine or zig-zag
- F28D7/082—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
- F28D7/085—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions
- F28D7/087—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions assembled in arrays, each array being arranged in the same plane
-
- 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
- F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Materials For Medical Uses (AREA)
Description
151512 ’151512 '
Den foreliggende opfindelse angår en varmeveksler til varmeveksling mellem et første medium, som passerer gennem et rørsystem, der omfatter et antal parallelkoblede rør mellem et indløb og et udløb for det første medium, og et andet medium, som strømmer i en ydre 5 kanal, der dannes af rørvæggene og en af to halvdele dannet kappe, som omslutter rørene, hvor rørene og kappen er således udformet, at kanalen for den anden mediestrøm mellem et indløb og et udløb omfatter lige partier, der er forbundet med hinanden ved hjælp af buede partier.The present invention relates to a heat exchanger for heat exchange between a first medium passing through a pipe system comprising a plurality of parallel connected pipes between an inlet and an outlet for the first medium, and a second medium flowing in an outer duct which is formed by the tube walls and one of two halves formed enclosing the tubes, the tubes and the casing being designed such that the channel for the second media flow between an inlet and an outlet comprises equal portions connected to each other by means of curved portions.
10 Formålet med opfindelsen er at tilvejebringe en varmeveksler, som er enkel i fremstilling, hvilket medfører lave omkostninger, og som har høj effektivitet, altså højt varmegennemgangstal fra det ene medium til det andet.The object of the invention is to provide a heat exchanger which is simple in production, which entails low costs and which has high efficiency, that is to say, high heat transfer rates from one medium to another.
Dette opnås med varmeveksleren ifølge opfindelsen, der er 15 ejendommelig ved, at der i den ydre kanal er anbragt styreorganer, f.eks. styreplader, således at den anden mediestrøm bliver opdelt i en ren modstrøm og en ren tværstrøm i forhold til den første mediestrøm, hvorved den anden mediestrøm under gentagne retningsændringer tvinges til at strømme gennem de spalter, som er dannet 20 i kanalen mellem rørene og kappen.This is achieved with the heat exchanger according to the invention, which is characterized in that control means are arranged in the outer duct, e.g. control plates such that the second media stream is divided into a pure countercurrent and a pure transverse current with respect to the first media stream, whereby the second media stream is forced, under repeated changes of direction, to flow through the slits formed in the channel between the tubes and the casing.
Ved hjælp af simple og billige midler, såsom de nævnte styreplader, eller ved at røret i den buede del af kanalen i henhold til krav 2 ligger an mod kappen, fis således en meget effektiv varme-udveksler på grund af den fremtvungne tværstrøm i forbindelse 25 med mediets modstrøm.By means of simple and inexpensive means, such as the said control plates, or by the tube in the curved part of the duct according to claim 2 abutting against the sheath, a very efficient heat exchanger is thus obtained due to the forced cross-flow in connection 25 with the media countercurrent.
Opfindelsen skal herefter forklares nærmere under henvisning til tegningen, hvor fig. 1 delvis i snit viser et planbiilede af en udførelsesform for varmeveksleren ifølge opfindelsen, 30 fig. 2 samme set fra neden, fig. 3 skematisk strømningsvejene for de forskellige medier gennem varmeveksleren, fig. 4 og 5 i større målestok og i snit detaljer af varmeveksleren, 35 fig. 6,7 og 8 eksempler på pladestrimler indlagt i varmeveksle ren.The invention will now be explained in more detail with reference to the drawing, in which fig. 1 is a partial cross-sectional view of an embodiment of the heat exchanger according to the invention; FIG. 2 is a bottom view, FIG. 3 schematically shows the flow paths of the various media through the heat exchanger; FIG. 4 and 5 on a larger scale and sectional details of the heat exchanger; 6.7 and 8 examples of plate strips inserted in heat exchanger clean.
Det første medium tilføres et i fig. 1 vist indløb 10 og forlader varmeveksleren gennem et udløb 11. 5om det nærmere fremgår af fig. 4, der i større målestok og i snit viser indløbet 10, er der til 151512 2 dette sluttet et rørsystem 12 bestående af fire rør 13,14,15 og 16, og det antages, at udløbet 11 er udført på lignende måde.The first medium is fed to a device shown in FIG. 1, and leaving the heat exchanger through an outlet 11. 5, as will be more apparent from FIG. 4, which, on a larger scale and in section, shows the inlet 10, there is connected to this a pipe system 12 consisting of four pipes 13,14,15 and 16, and it is assumed that the outlet 11 is designed in a similar manner.
Som det nærmere fremgår af fig. 5, som viser et snit langs et med V betegnet plan i fig. 1, er rørene 13,14,15 og 16 affladede 5 og anbragt således, at der mellem hosliggende φ dannes en smal spalte. I den her viste udførelsesform er det antaget, at rørsystemet omfatter fire indbyrdes parallel koblede og affladede rør, men opfindelsen er ikke bundet til dette antal. Det kan således ved visse anvendelser være fordelagtigt med et større eller mindre antal rør i 10 rørsystemet.As will be more apparent from FIG. 5, which shows a section along a plane denoted by V in FIG. 1, the pipes 13,14,15 and 16 are flattened 5 and arranged so that a narrow gap is formed between adjacent φ. In the embodiment shown here, it is believed that the pipe system comprises four mutually coupled and flared pipes, but the invention is not limited to this number. Thus, in certain applications, it may be advantageous to have a larger or smaller number of pipes in the pipe system.
Som det nærmere fremgår af fig. 1, er det mellem indløbet 10 og udløbet 11 anbragte rørsystem 12 bukket til en modificeret zig-zagform, så at der dannes et antal lige partier 17, der er indbyrdes forbundet ved hjælp af halvcirkelformede partier 18. Rørsystemet 15 er indlagt i en kappe 19, der er sammensat af to halvdele 20 og 21 (fig. 2 og 5). Hver halvdel udgøres af en formpresset plade, som ved presningen er givet en sådan form, at der, når begge halvdele spejlvendt er lagt mod hinanden, dannes en kanal 22, som omgiver rørsystemet 12, og som strækker sig fra et indløb 23 til et udløb 24 20 for det andet medium.As will be more apparent from FIG. 1, the pipe system 12 disposed between the inlet 10 and the outlet 11 is bent into a modified zig-zag shape so as to form a plurality of equal portions 17 which are interconnected by semicircular portions 18. The pipe system 15 is housed in a jacket 19 , which is composed of two halves 20 and 21 (Figures 2 and 5). Each half is constituted by a molded plate, which in the pressing is given such a form that when both halves are mirrored against each other, a channel 22 is formed which surrounds the pipe system 12 and extends from an inlet 23 to an outlet. 24 20 for the second medium.
De strømningsveje for de to medier, specielt det andet medium, som på denne måde opnås, er vist skematisk i fig. 3. Det andet medium kommer således ind gennem indløbet 23, hvorefter det i det med 25 betegnede lige parti af kanalen 22 presses gennem de smal-25 le spalter mellem rørene 13 til 16 i rørsystemet 12. Som skematisk antydet i fig. 3 findes der på ydersiden af det halvcirkelformede parti 18 ikke nogen direkte forbindelse mellem på hinanden følgende lige partier af kanalen 22, hvilket medfører, at det andet medium, efter at det har passeret den skematisk viste mellemvæg 26, igen 30 presses gennem de smalle partier i rørsystemet 12. På denne måde bliver det .andet medium således under stadige retningsændringer presset frem og tilbage gennem de smalle spalter i rørsystemet. Den samme effekt opnås ved den i fig. 1 viste udformning ved, at små skærme 27 er indlagt i kanalen 22 på en sådan måde, at en medie-35 strømning langs ydersiden af de halvcirkelformede rørpartier 18 forhindres. Derved tvinges det andet medium, som tidligere forklaret, til at strømme gennem de smalle spalter i rørsystemet.The flow paths for the two media, especially the other medium obtained in this way, are shown schematically in FIG. 3. The second medium thus enters through the inlet 23, after which, in the equal portion of the channel 22 indicated by 25, it is pressed through the narrow gaps between the pipes 13 to 16 of the pipe system 12. As schematically indicated in FIG. 3, there is no direct connection on the outside of the semicircular portion 18 between successive equal portions of the channel 22, which causes the second medium, after passing through the diagrammatically shown intermediate wall 26, to again push through the narrow portions 30 in the piping system 12. In this way, the other medium is thus pressed under constant changes of direction back and forth through the narrow gaps in the piping system. The same effect is obtained from the one shown in FIG. 1 in that small screens 27 are inserted into the channel 22 in such a way as to prevent a media flow along the outside of the semicircular tube portions 18. As a result, the second medium, as previously explained, is forced to flow through the narrow gaps in the pipe system.
For at forøge varmegennemgangstallet er det hensigtsmæssigt at udføre rørene 13-16 i rørsystemet krydsrillede på i og for sig 151512 3 kendt made. En sidan krydsrilning, som eksempelvis er kendt fra svensk patentskrift nr. 363.164, bidrager også til, at den smalle spalte mellem to mod hinanden liggende rør samt mellem de ydre rør og kappen 19 får en optimal bredde, så at det ønskede høje 5 varmeovergangstal kan opnås.In order to increase the heat throughput, it is appropriate to make the pipes 13-16 in the pipe system cross grooved in a manner known per se. A side cross groove, which is known, for example, from Swedish Patent Specification No. 363,164, also contributes to the narrow gap between two adjacent pipes and between the outer pipes and the casing 19 to obtain an optimum width, so that the desired high heat transfer rate can be achieved. is obtained.
I en alternativ udførelsesform kan de affladede rør være glatte, og der kan da i tværretningen være indlagt reliefmønstrede pladestrimler mellem rørene henholdsvis mod kappen, hvorved højden af denne relief mønstring bestemmer spaltebredden.In an alternative embodiment, the flattened tubes may be smooth, and then transverse patterned plate strips may be inserted between the tubes and against the sheath, respectively, whereby the height of this relief pattern determines the slit width.
10 En udførelsesform af sådanne pladestrimler er vist i fig. 6 i et planbillede og i fig. 7 i snit. I fig. 6 er vist en del af den kanal 22 i kappen 19, hvori det i denne figur ikke viste rørsystem er indlagt. Mellem rørene i rørsystemet og mellem disse rør og kappen er anbragt pladestrimler 28, hvis længde i det væsentlige stemmer 15 overens med længden af de lige partier 17 af kanalen 22. Hver pladestrimmel 28, som i fig. 7 er vist i snit, er forsynet med et antal riller eller udbugtninger 29. Højden af disse bestemmer bredden af den spalte mellem rørene, i hvilken det andet medium strømmer. Hensigtsmæssigt er rillerne 29 bølgeformede som vist i fig. 6, så at der 20 opnås en vis styring af mediestrømningen i overensstemmelse med de på tegningen viste pile.An embodiment of such plate strips is shown in FIG. 6 in a plan view and in FIG. 7 in section. In FIG. 6 is shown part of the channel 22 in the jacket 19 in which the pipe system shown in this figure is not inserted. Between the pipes of the pipe system and between these pipes and the casing are plate strips 28, the length of which corresponds substantially to the length of the straight portions 17 of the channel 22. Each plate strip 28, as in FIG. 7 is shown in section, is provided with a plurality of grooves or bends 29. The height of these determines the width of the gap between the tubes into which the other medium flows. Conveniently, the grooves 29 are corrugated as shown in FIG. 6 so that some control of the media flow is obtained in accordance with the arrows shown in the drawing.
En alternativ udførelsesform for pladestrimlerne er vist i fig. 8.An alternative embodiment of the plate strips is shown in FIG. 8th
I dette tilfælde er en pladestrimmel 30 således profileret i rektangulær zig-zagform, at successive flader af pladestrimlen 30 ligger skiftevis 25 an mod det ene og det andet rør 14 og 15. På analog måde er lignende udformede pladestrimler indlagt i de øvrige spalter i rørsystemet.In this case, a sheet strip 30 is so profiled in rectangular zig-zag form that successive faces of sheet strip 30 alternately abut 25 against tubes 14 and 15. Similarly, similar shaped sheet strips are inserted into the other columns of the piping system. .
Med en sådan udformning af pladestrimlerne opnås bl.a. en forøgelse af rørenes effektive yderflade og dermed en forøget varmeover-føringsevne.With such a design of the plate strips, among other things, an increase in the effective outer surface of the tubes and thus an increased heat transfer capacity.
Claims (2)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7810113A SE7810113L (en) | 1978-09-26 | 1978-09-26 | VERMEVEXLARE |
| SE7810113 | 1978-09-26 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK403779A DK403779A (en) | 1980-03-27 |
| DK151512B true DK151512B (en) | 1987-12-07 |
| DK151512C DK151512C (en) | 1988-05-24 |
Family
ID=20335925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK403779A DK151512C (en) | 1978-09-26 | 1979-09-26 | HEAT EXCHANGE |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS5546396A (en) |
| AT (1) | AT363500B (en) |
| BE (1) | BE879027A (en) |
| CA (1) | CA1118761A (en) |
| CH (1) | CH649373A5 (en) |
| DE (1) | DE2938249A1 (en) |
| DK (1) | DK151512C (en) |
| FR (1) | FR2437594B1 (en) |
| GB (1) | GB2032091B (en) |
| IT (1) | IT1123335B (en) |
| NL (1) | NL7907022A (en) |
| NO (1) | NO147283C (en) |
| SE (1) | SE7810113L (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4872503A (en) * | 1986-03-13 | 1989-10-10 | Marriner Raymond E | Air heat exchanger |
| EP0949478A3 (en) * | 1998-03-09 | 2000-03-01 | Nefit Fasto B.V. | Heat exchanger |
| US6435273B1 (en) * | 1998-12-14 | 2002-08-20 | Vladlen Futernik | Device for air temperature control in a vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3074480A (en) * | 1960-09-14 | 1963-01-22 | Brown Fintube Co | Heat exchanger |
| FR2365770A1 (en) * | 1976-09-23 | 1978-04-21 | Fiat Spa | HEAT EXCHANGERS INTENDED IN PARTICULAR FOR HEATING WATER BY EXHAUST GAS |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR830829A (en) * | 1937-12-15 | 1938-08-10 | Ag Fuer Technische Studien | tubular heat exchanger |
| FR991316A (en) * | 1949-07-22 | 1951-10-04 | Improvement in temperature exchange devices | |
| DE897417C (en) * | 1951-07-23 | 1953-11-19 | Waagner Biro Ag | Heat exchanger |
| US2877000A (en) * | 1955-09-16 | 1959-03-10 | Int Harvester Co | Heat exchanger |
| US2979310A (en) * | 1956-10-08 | 1961-04-11 | Intercontinental Mfg Company I | Heat exchangers |
| GB1304685A (en) * | 1969-02-18 | 1973-01-24 | ||
| FR2354156A1 (en) * | 1976-06-09 | 1978-01-06 | Maurice Michel | Oval section finned tube for heat exchanger - is made by forming finned round tube onto internal mandrel in rubber lined die on press. |
-
1978
- 1978-09-26 SE SE7810113A patent/SE7810113L/en unknown
-
1979
- 1979-09-19 JP JP12155179A patent/JPS5546396A/en active Pending
- 1979-09-20 GB GB7932658A patent/GB2032091B/en not_active Expired
- 1979-09-20 NL NL7907022A patent/NL7907022A/en not_active Application Discontinuation
- 1979-09-21 DE DE19792938249 patent/DE2938249A1/en not_active Withdrawn
- 1979-09-24 AT AT0625579A patent/AT363500B/en not_active IP Right Cessation
- 1979-09-24 FR FR7923684A patent/FR2437594B1/en not_active Expired
- 1979-09-24 CH CH8597/79A patent/CH649373A5/en not_active IP Right Cessation
- 1979-09-25 NO NO793075A patent/NO147283C/en unknown
- 1979-09-25 IT IT25995/79A patent/IT1123335B/en active
- 1979-09-26 CA CA000336408A patent/CA1118761A/en not_active Expired
- 1979-09-26 DK DK403779A patent/DK151512C/en not_active IP Right Cessation
- 1979-09-26 BE BE0/197341A patent/BE879027A/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3074480A (en) * | 1960-09-14 | 1963-01-22 | Brown Fintube Co | Heat exchanger |
| FR2365770A1 (en) * | 1976-09-23 | 1978-04-21 | Fiat Spa | HEAT EXCHANGERS INTENDED IN PARTICULAR FOR HEATING WATER BY EXHAUST GAS |
Also Published As
| Publication number | Publication date |
|---|---|
| NO147283B (en) | 1982-11-29 |
| FR2437594B1 (en) | 1986-06-06 |
| JPS5546396A (en) | 1980-04-01 |
| AT363500B (en) | 1981-08-10 |
| BE879027A (en) | 1980-01-16 |
| DE2938249A1 (en) | 1980-03-27 |
| SE7810113L (en) | 1980-03-27 |
| DK151512C (en) | 1988-05-24 |
| CH649373A5 (en) | 1985-05-15 |
| FR2437594A1 (en) | 1980-04-25 |
| DK403779A (en) | 1980-03-27 |
| CA1118761A (en) | 1982-02-23 |
| IT1123335B (en) | 1986-04-30 |
| GB2032091B (en) | 1982-11-17 |
| GB2032091A (en) | 1980-04-30 |
| IT7925995A0 (en) | 1979-09-25 |
| NO793075L (en) | 1980-03-27 |
| ATA625579A (en) | 1981-01-15 |
| NL7907022A (en) | 1980-03-28 |
| NO147283C (en) | 1983-03-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUP | Patent expired |