DK143370B - HEAT EXCHANGES WITH FLAT PARALLEL HEAT EXCHANGER AND PROCEDURE FOR ITS PREPARATION - Google Patents

HEAT EXCHANGES WITH FLAT PARALLEL HEAT EXCHANGER AND PROCEDURE FOR ITS PREPARATION Download PDF

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Publication number
DK143370B
DK143370B DK395775AA DK395775A DK143370B DK 143370 B DK143370 B DK 143370B DK 395775A A DK395775A A DK 395775AA DK 395775 A DK395775 A DK 395775A DK 143370 B DK143370 B DK 143370B
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Denmark
Prior art keywords
pipes
flat
heat exchanger
welding
manifold
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DK395775AA
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Danish (da)
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DK143370C (en
DK395775A (en
Inventor
H U Schalch
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Runtal Holding Co Sa
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Publication of DK143370B publication Critical patent/DK143370B/en
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Publication of DK143370C publication Critical patent/DK143370C/en

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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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • 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
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F28F9/185—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding with additional preformed parts
    • 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
    • F28D2021/0035—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for domestic or space heating, e.g. heating radiators

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  • 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)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Heat Treatment Of Articles (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)

Description

da) DANMARK \Ra/da) DENMARK \ Ra /

|j| (12) FREMLÆGGELSESSKRIFT <n) 143370 B| J | (12) PUBLICATION <n) 143370 B

DIREKTORATET FOR PATENT- OG VAREMÆRKEVÆSENETDIRECTORATE OF THE PATENT AND TRADEMARKET SYSTEM

(21) Ansøgning nr. 3957/75 (51) lnt.Cl.s F 28 D 1/04 (22) Indleveringsdag 3· sep. 1975 (24) Løbedag 3· s ep. 1975 (41) Aim. tilgængelig 21 · tnar. 1976 (44) Fremlagt 10. aug. 1981 (86) International ansøgning nr. -(86) International indleveringsdag -(85) Videreførelsesdag -(62) Stamansøgning nr. -(21) Application No. 3957/75 (51) lnt.Cl.s F 28 D 1/04 (22) Filing day 3 · sep. 1975 (24) Race day 3 · s ep. 1975 (41) Aim. available 21 · tnar. 1976 (44) Presented Aug. 10; 1981 (86) International Application No. - (86) International Filing Day - (85) Continuation Day - (62) Master Application No. -

(30) Prioritet 20. s ep. 1974, 12782/74, CH(30) Priority 20. s ep. 1974, 12782/74, CH

(71) Ansøger RUNTAL HOLDING COMPANY S.A., CH-8750 Glarus, CH.(71) Applicant RUNTAL HOLDING COMPANY S.A., CH-8750 Glarus, CH.

(72) Opfinder Hans Ulrich £>chalch, CH.(72) Inventor Hans Ulrich £> chalch, CH.

(74) Fuldmægtig Internationalt Patent-Bureau.(74) International Patent Bureau.

(54) Varmeudveksler med flade, paral= leile varmeudvekslerrør og fremgangsmåde til dens fremstil** ling.(54) Heat exchanger with flat, parallel = empty heat exchanger tubes and method for its manufacture.

Opfindelsen angår en varmeudveksler med flade, parallelle varmeudvekslerrør, der er lukket for enderne og på bagsiden er forbundet med samlerør til frem- og tilbageløb.The invention relates to a heat exchanger with flat, parallel heat exchanger tubes closed at the ends and at the rear connected with reciprocating collector pipes.

Der kendes varmeudvekslere af ovennævnte art, hvor varmeud-vekslerrørene ligger tæt an mod samlerørene og er forbundet med disse ved hjælp af flugtende åbninger i rørvæggene.There are known heat exchangers of the above-mentioned type, in which the heat-exchange pipes are close to the collector pipes and are connected to these by means of flush openings in the pipe walls.

| Imidlertid er det meget vanskeligt og dermed tidkrævende at udføre en god og tæt svejsning på samlingsstederne mellem røre-| ne, fordi disse ligger tæt op mod hinanden, og disse vanskeligheder forøges yderligere, hvis varmeudvekslerrørene indbyrdes også er anbragt tæt op ad hinanden langs samlerørene. Endvidere kræver ( en sådan forholdsvis kompliceret svejsning faglært arbejdskraft.| However, it is very difficult and thus time-consuming to perform a good and close welding at the assembly points between the stirring | ne, because these are close to each other and these difficulties are further increased if the heat exchanger pipes are also arranged close to one another along the collector pipes. Furthermore, such a relatively complicated welding requires skilled labor.

2 1433702 143370

Da varmeudvekslerrørene er fladrør, der ikke tåler større mekaniske tryk vinkelret på rørene er det ikke muligt at svejse disse rør på samlerørene ved hjælp af modstandssvejsning, som det er kendt ved svejsning af runde varmeudvekslerrør på runde samlerør.Since the heat exchanger pipes are flat pipes that do not tolerate greater mechanical pressure perpendicular to the pipes, it is not possible to weld these pipes on the collector pipes by means of resistance welding, as is known in the welding of round heat exchange pipes on round collector pipes.

Opfindelsen angiver en varmeudveksler, der adskiller sig fra den indledningsvis nævnte ved, at der i varmeudvekslerrørene i afstand fra hver rørende er indsvejst bøsningsformede mellemstykker, som går tværs over rørlysningen og har slidser for vandgennemløbet, og hvis ud til den ene side ragende ender er indsvejst i boringer i samlerørene.The invention provides a heat exchanger which differs from the one mentioned at the outset in that in the heat exchanger pipes spaced apart from each pipe are bush-shaped spacers which extend across the pipe luminaire and have slits for the water flow and whose ends projecting to one side are welded in bores in the manifolds.

Varmeudveksleren ifølge opfindelsen udmærker sig - foruden sit æstetiske udseende - ved en i forhold til de kendte varmeud-vekslere forenklet og hurtigere fremstilling, som kan ske ved hjælp af ufaglært arbejdskraft, uden at det går ud over svejsningens kvalitet.The heat exchanger according to the invention is distinguished - in addition to its aesthetic appearance - by a simplified and faster production compared to the known heat exchangers, which can be done by unskilled labor without compromising the quality of the welding.

På grund af de adskilt fra fladrørenes plan liggende samlerør og anvendelsen af mellemstykker som forbindelse til de bagudlig-gende samlerør er det muligt ved fremstillingen at anvende den såkaldte vortesvejsemetode, ved hvilken de dele, som skal forbindes, sammenføjes under tryk mellem elektroderne i en svejsemaskine.Due to the separating pipes lying apart from the plane of the flat pipes and the use of spacers as connection to the underlying collecting pipes, it is possible in the manufacture to use the so-called wort method, in which the parts to be connected are pressurized between the electrodes in a welding machine. .

I en foretrukken udformning ifølge opfindelsen har samlerørene cirkulært tværsnit. Dette er en fordel, fordi et rundt rør har et forholdsvis stort modstandsmoment, så at det bedre kan modstå trykket fra vortesvejsemaskinen, hvis ene elektrode, som hensigtsmæssigt kan have form af en halvcylinder, trykkes mod samlerørets omkreds, medens trykket fra den anden elektrode optages af mellemstykket, som går helt igennem inden i fladrøret, så at fladrøret, der ikke selv har tilstrækkeligt modstandsmoment, ikke deformeres under svejsningen.In a preferred embodiment of the invention, the collector tubes have a circular cross section. This is an advantage because a round tube has a relatively high resistance torque, so that it can better withstand the pressure of the welding machine, whose one electrode, which may conveniently take the form of a half cylinder, is pressed against the circumference of the collector tube while the pressure from the other electrode is absorbed. of the spacer which extends all the way inside the flat tube so that the flat tube, which does not itself have sufficient resistance torque, is not deformed during welding.

En anden fordel ved de cylindriske samlerør er den gunstige mulighed for opdeling af varmeudveksleren i sektioner for frem- og tilbageløb,' hvis flere varmeudvekslere i serie kobles efter hinanden, eller hvis f.eks. den øverste halvdel af varmeudveksleren skal anvendes til fremløb og doinederste halvdel til tilbageløb. Skillevægge, som skal indsættes i samlerørene til dette formål, kan på hensigtsmæssig måde sættes ind i et cylindrisk samlerør og her give garanti for absolut tæthed, hvilket ved hidtil kendte varmeudvekslere med i tværsnit urunde samlerør ikke med sikkerhed er tilfældet, hvorfor anbringelsen af flere af sidste art varme- 143370 3 udvekslere i serie hidtil kun har været mulig i begrænset grad på grund af de ved utæthederne forårsagede tryktab, der kan medføre, at de sidste varmeudvekslere er kolde. Hvis opvarmningsomkostningerne udregnes på grundlag af forbruget af varmt vand, er - på grund af opnåelsen af et stort temperaturfald ved et lille cirkulerende vandrumfang - anbringelsen af varmeudvekslere i serie det mest hensigtsmæssige, og disses funktionssikkerhed er derfor meget vigtig.Another advantage of the cylindrical collector pipes is the favorable possibility of dividing the heat exchanger into forward and reverse sections if several heat exchangers are connected in series, or if e.g. the upper half of the heat exchanger must be used for flow and the lower half for reflux. Partitions to be inserted into the manifolds for this purpose may conveniently be inserted into a cylindrical manifold and hereby guarantee absolute tightness, which in prior art heat exchangers with a circular cross-sectional manifold is not certainly the case, so the placement of several of the The last type of heat exchangers in series so far has only been possible to a limited extent due to the pressure losses caused by the leaks which can cause the last heat exchangers to be cold. If heating costs are calculated on the basis of the consumption of hot water, - because of the large temperature drop at a small circulating volume of water - the placement of series heat exchangers is the most appropriate, and their functional safety is therefore very important.

Opfindelsen angiver endvidere også en fremgangsmåde til fremstilling af en varmeudveksler ifølge opfindelsen, ejendommelig ved, at de bøsningsformede mellemstykker indsættes i boringer på den ene side af fladrørene og indsvejses tæt langs boringskanten, og at mellemstykkernes ender, som er udformet med en centreringskonus, indsættes i boringerne i samlerørene, hvorefter mellemstykkerne fastgøres på samlerørene ved vortesvejsning ved hjælp af en svejsemaskines elektroder,som trykker mod ydersiderne af samlerørene og fladrørene eller, i fald der er fladrør på begge sider af samlerørene, imod fladrørene.The invention further discloses a method of producing a heat exchanger according to the invention, characterized in that the bush-shaped spacers are inserted into bores on one side of the flat tubes and welded close along the bore edge and that the ends of the spacers formed with a centering cone are inserted. the bores in the manifolds, after which the spacers are secured to the manifolds by welding by means of a welding machine's electrodes which press against the outside of the manifolds and flat tubes or, in case there are flat tubes on both sides of the manifolds, against the flat tubes.

Opfindelsen forklares nærmere i det følgende ved hjælp af udførelseseksempler på en varmeudveksler ifølge opfindelsen og under henvisning til tegningen, hvor fig. 1 viser en varmeudveksler ifølge opfindelsen set fpr- fra, fig. 2 et sidebillede af varmeudveksleren med fladrør på den ene side af samlerørene, fig. 3 et sidebillede af en anden udformning af varmeudveksle-ren med fladrør anbragt på begge sider af samlerørene, og fig. 4 i stor målestok et længdesnit gennem et samlerør med et tilsluttet fladrør i tværsnit.The invention will be explained in more detail below with the aid of exemplary embodiments of a heat exchanger according to the invention and with reference to the drawing, in which fig. 1 is a front view of a heat exchanger according to the invention; FIG. 2 is a side view of the heat exchanger with flat pipes on one side of the collector pipes; FIG. 3 is a side view of another embodiment of the heat exchanger with flat tubes arranged on both sides of the collector pipes; and FIG. 4 is a longitudinal section through a manifold with a connected flat section in cross section.

Den i fig. 1 viste varmeudveksler har fem parallelle fladrør 1 og to samlerør 2, som er anbragt på varmeudvekslerens bagside i afstand fra fladrørenes ender og i afstand fra planet gennem fladrørene. De indad forsatte samlerør kan ikke ses forfra, hvilket er en æstetisk fordel.The FIG. 1, there are five parallel flat pipes 1 and two collector pipes 2 which are arranged on the rear of the heat exchanger at a distance from the ends of the flat pipes and at a distance from the plane through the flat pipes. The inwardly seated collector pipes cannot be seen from the front, which is an aesthetic advantage.

Ved de i fig. 1-4 viste varmeudvekslere er der til forbindelsen af fladrørene 1 med samlerørene 2 anvendt en hensigtsmæssig teknik, der består i en kombination af COj- og vortesvejsning. En sådan fremstillingsteknik kan kun gennemføres med samlerør, som er forskudt indad.In the FIG. 1-4, for the connection of the flat tubes 1 with the collector tubes 2, an appropriate technique is used which consists of a combination of CO 2 and weld welding. Such a manufacturing technique can only be carried out with manifolds which are displaced inward.

I fladrøret 1 fremstilles der først i afstand fra hver afThe spacer 1 is first spaced apart from each

Claims (2)

4 143370 de to ender en boring, og i denne indsættes et bøsningsformet mellemstykke 3 på en sådan måde, at det ligger an mod indersiden af fladrøret modsat boringen og rager ud gennem boringen med et stykke, på hvis ende der er drejet en centreringskonus 4. Mellemstykket 3 er indsvejst i fladrøret 1 ved hjælp af CC^-svejsning hele vejen rundt langs svejsesømmen 5. Mellemstykket 3 rager med centreringskonussen 4 ind i en boring 6 i samlerøret 2. På dette sted er samlerøret og mellemstykket forbundet med hinanden ved hjælp af vortesvejsning. Til dette formål trykkes en på tegningen ikke vist, som en halvcylinder udformet elektrode i en svejsemaskine mod samlerøret og en over for førstnævnte elektrode værende flad elektrode mod fladrøret udefra på en sådan måde, at mellemstykket overfører trykket til samlerøret, der har et større modstandsmoment end fladrøret. I hvert fladrør 1 er indsvejst to mellemstykker 3, hvormed fladrøret er tilsluttet de to samlerør for frem- og tilbageløb. Mellemstykket har på den del, som befinder sig inden i fladrøret, radialt liggende slidser 7 for gennemløb af vandet i fladrøret. Samlerøret har et cirkulært tværsnit, som om fornødent på hensigtsmæssig måde gør det muligt at indtrykke med sikkerhed tætnende radiale skillevægge 8 fra rørenden, såfremt varmeudveksleren ønskes delt i indbyrdes adskilte halvdele foroven og forneden for gennemstrømning i serie. Sådanne skillevægge indsættes før indsvejsningen af mellemstykkerne 3. Af fig. 2 og 3 fremgår, at fladrørene kan anbringes enten på den ene side af samlerørene eller på modstående sider af samlerørene og i parallelle planer. Forbindelsen mellem fladrørene og samlerørene sker i begge tilfælde ved hjælp af vortesvejsning, hvilket muliggør en rationel og dermed billig fremstilling. Endvidere fremgår det af fig. 1, at fladrørene er anbragt i afstand fra og parallelt med hinanden, hvorved man i modsætning til kendte varmeudveksle-re med fladrør, som berører hinanden, opnår en større varmeafgivelse, der på grund af den ved den nye anbringelse mulige luftcirkulation mellem fladrørene og de ikke op ad hinanden liggende rør giver en større fri varmeflade.4 the two ends of a bore, and in this a bush-shaped intermediate piece 3 is inserted in such a way that it abuts the inside of the flat tube opposite the bore and protrudes through the bore with a piece at which end a centering cone 4 is turned. The intermediate piece 3 is welded into the flat tube 1 by means of CC ^ welding all the way around the weld seam 5. The intermediate piece 3 projects with the centering cone 4 into a bore 6 in the manifold 2. At this point, the manifold and the intermediate piece are connected to each other by means of welding. . For this purpose, an electrode shaped in a welding machine is not shown in the drawing as a welding machine against the manifold and a flat electrode which is facing the first tube from the outside in such a way that the spacer transmits the pressure to the manifold having a greater resistance moment than flat tube. In each flat tube 1, two spacers 3 are welded in, with which the flat tube is connected to the two reciprocating collector pipes. The intermediate piece has radially recessed slots 7 for the passage of the water in the flat tube on the part which is inside the flat tube. The manifold has a circular cross-section which, if appropriate, allows the sealing radial dividing walls 8 to be safely pressed in from the pipe end, if the heat exchanger is desired to be divided into separate halves at the top and bottom for flow in series. Such partitions are inserted before the welding of the intermediate pieces 3. By fig. 2 and 3, it can be seen that the flat pipes can be arranged either on one side of the collector pipes or on opposite sides of the collector pipes and in parallel planes. In both cases, the connection between the flat pipes and the collector pipes is done by means of welding, which makes for a rational and thus cheap production. Furthermore, it can be seen from FIG. 1, that the flat pipes are spaced apart and parallel to one another, which, in contrast to known heat exchangers with flat pipes that touch each other, obtains a greater heat output which, due to the new circulation possible between the flat pipes and the non-adjoining pipes provide a larger free heating surface. 1. Varmeudveksler med flade, parallelle varmeudvekslerrør, der er lukket ved enderne og på bagsiden er forbundet med samlerør til frem- og tilbageløb, kendetegnet ved, at der i var-1. Heat exchanger with flat parallel heat exchanger tubes closed at the ends and at the rear connected with reciprocating collector pipes, characterized in that
DK395775A 1974-09-20 1975-09-03 HEAT EXCHANGE WITH FLAT, PARALLEL HEAT EXCHANGER AND PROCEDURE FOR ITS MANUFACTURING DK143370C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1278274A CH568539A5 (en) 1974-09-20 1974-09-20
CH1278274 1974-09-20

Publications (3)

Publication Number Publication Date
DK395775A DK395775A (en) 1976-03-21
DK143370B true DK143370B (en) 1981-08-10
DK143370C DK143370C (en) 1981-12-14

Family

ID=4386344

Family Applications (1)

Application Number Title Priority Date Filing Date
DK395775A DK143370C (en) 1974-09-20 1975-09-03 HEAT EXCHANGE WITH FLAT, PARALLEL HEAT EXCHANGER AND PROCEDURE FOR ITS MANUFACTURING

Country Status (14)

Country Link
JP (1) JPS5153752A (en)
AT (1) AT336221B (en)
BE (1) BE833593A (en)
CH (1) CH568539A5 (en)
DE (1) DE2540202C2 (en)
DK (1) DK143370C (en)
ES (1) ES441107A1 (en)
FR (1) FR2285586A1 (en)
GB (1) GB1517984A (en)
IE (1) IE42086B1 (en)
IL (1) IL48093A (en)
IT (1) IT1042144B (en)
NL (1) NL7511063A (en)
SE (1) SE7509557L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH592290A5 (en) * 1975-10-24 1977-10-31 Runtal Holding Co Sa
FR2453365A1 (en) * 1979-04-06 1980-10-31 Acova Vaux Andigny Convector heating unit - has electrical heating element between two probed walls forming flat tube and each contg. longitudinal slot
CH644444A5 (en) * 1980-02-07 1984-07-31 Runtal Holding Co Sa HEAT EXCHANGER.
CH654100A5 (en) * 1981-03-12 1986-01-31 Runtal Holding Co Sa RADIATOR.
DE3403488C2 (en) * 1984-02-01 1986-11-20 Arbonia Ag, Arbon Flat tube radiators

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE260795C (en) *

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Publication number Publication date
DE2540202A1 (en) 1976-04-01
IT1042144B (en) 1980-01-30
ATA840474A (en) 1976-08-15
ES441107A1 (en) 1977-03-16
DK143370C (en) 1981-12-14
JPS5153752A (en) 1976-05-12
IL48093A (en) 1977-12-30
FR2285586A1 (en) 1976-04-16
IL48093A0 (en) 1975-11-25
FR2285586B1 (en) 1979-08-03
AT336221B (en) 1977-04-25
CH568539A5 (en) 1975-10-31
SE7509557L (en) 1976-03-22
DK395775A (en) 1976-03-21
NL7511063A (en) 1976-03-23
IE42086B1 (en) 1980-06-04
DE2540202C2 (en) 1983-10-27
GB1517984A (en) 1978-07-19
BE833593A (en) 1976-01-16

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