DK166518B1 - PLATE HEAT EXCHANGE - Google Patents
PLATE HEAT EXCHANGE Download PDFInfo
- Publication number
- DK166518B1 DK166518B1 DK164489A DK164489A DK166518B1 DK 166518 B1 DK166518 B1 DK 166518B1 DK 164489 A DK164489 A DK 164489A DK 164489 A DK164489 A DK 164489A DK 166518 B1 DK166518 B1 DK 166518B1
- Authority
- DK
- Denmark
- Prior art keywords
- gasket
- heat exchanger
- groove
- packing
- extensions
- Prior art date
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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
- 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
- F28F3/10—Arrangements for sealing the margins
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/08—Antiepileptics; Anticonvulsants
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D205/00—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom
- C07D205/02—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings
- C07D205/04—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
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- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pharmacology & Pharmacy (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Neurosurgery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pain & Pain Management (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (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
i DK 166518 B1in DK 166518 B1
PLADEVARMEVEKSLERPLATE HEAT EXCHANGE
Opfindelsen angår en pladevarmeveksler sammensat af flere i en ramme sammenspændte varmevekslerplader, der er tætnet 5 mod hverandre med pakninger, som er anbragte i varmevekslerpladernes periferinoter, idet pakningsnoterne er udformet retvinklet eller trapezformet med lille positiv eller negativ åbningsvinkel.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a plate heat exchanger composed of a plurality of compressed heat exchanger plates sealed against one another by gaskets disposed in the peripheral notes of the heat exchanger plates, the gasket notes being formed at right angles or trapezoidal shapes with little positive or negative opening angle.
10 Der kendes pladevarmevekslere, i hvilke man til sikring mod udfald af de i varmevekslerpladernes pakningsnoter indlagte pakninger har klæbet disse fast med et egnet klæbestof. Pakningsnotens tværsnit i varmeveks1erpl aden- er foretrukket trapezformet således, at sidefladerne har en positiv 15 åbningsvinkel. Pakningens form er tilpasset til pakningsnotens således, at sidefladerne ved indlægning af pakningen lægges an mod pakningsnotens vægge.10 It is known for plate heat exchangers in which to seal the gaskets inserted in the packing notes of the heat exchanger plates, these are adhered to with a suitable adhesive. The cross section of the packing note in heat exchanger is preferably trapezoidal, such that the side surfaces have a positive opening angle. The shape of the gasket is adapted to the gasket groove so that, when inserting the gasket, the side surfaces abut against the gasket groove walls.
Denne pladevarmeveksler har den ulempe, at pakningsmateri-20 alet ofte vanskeligt kan klæbes til pladen, og at megen arbejdstid er nødvendig ved udskiftning af den hurtigt opslidte, indklæbede pakning. Af denne årsag er der behov for løsninger, som overflødiggør klæbningen af pakningen i varmevekslerpladens pakningsnot.This plate heat exchanger has the disadvantage that the packing material can often be difficult to adhere to the plate and that a great deal of working time is needed when replacing the rapidly worn, glue-in gasket. For this reason, solutions are needed that eliminate the adhesion of the gasket in the heat exchanger plate gasket.
25 Således er der i DE 86 63 49 beskrevet en varmevekslerplade, hvis pakningsnot har et trapezformet tværsnit med en negativ åbningsvinkel, det vil sige et svalehaleformet tværsnit. I denne pakningsnot indlægges en trapezformet 30 pakning, som er tilpasset til svalehaleformen. Derved kan man forhindre pakningen i at falde ud af pakningsnoten, og en klæbning er dermed unødvendig. Ulempen ved denne form for pakning er den komplicerede fremstilling af pakningsnoten i de meget tyndvæggede varmeveks1erplader og deres 35 måltolerance over hele notlængden. En yderligere ulempe er, at indtrykningen af pakningen i den svalehaleformede pak- DK 166518 B1 2 ningsnot er meget vanskelig. Således foreslås det ifølge WO 87 01 189, at pakningsnoten ikke udformes svalehaleformet over hele periferi strækningen, men at man kun stedvis udformer det svalehaleformede tværsnit. Eftersom pakningen 5 et tilpasset til denne form, er det klart, at pakningen kun er fastklemt i pakningsnoten på disse steder. Parallelt hermed foreslås der i WO 84 04 809 en pakning, hvori der er hulrum, som ved indpasning af pakningen i pakningsnoten og ved store sammenpresningstryk i driftstilstand tillader 10 en undvigelse af pakningsmaterialet. Med begge disse løsninger kan man opnå, at- pakningerne bliver lettere at montere, men man har dog stadig de forøgede- fremstillingsomkostninger til fremstilling af svalehalenoten.25 Thus, DE 86 63 49 discloses a heat exchanger plate, whose gasket groove has a trapezoidal cross-section with a negative opening angle, that is, a dovetail-shaped cross-section. In this packing note is inserted a trapezoidal gasket adapted to the dovetail shape. Thereby, the gasket can be prevented from falling out of the gasket, and thus an adhesion is unnecessary. The disadvantage of this type of packing is the complicated manufacture of the packing note in the very thin-walled heat exchanger plates and their target tolerance over the entire length of the groove. A further disadvantage is that the impression of the gasket in the dovetail-shaped gasket is very difficult. Thus, according to WO 87 01 189, it is proposed that the packing groove is not formed dovetail-shaped over the entire circumferential section, but that the dovetail-shaped cross-section is formed only in places. Since the gasket 5 adapts to this shape, it is clear that the gasket is only jammed in the gasket groove at these locations. In parallel, in WO 84 04 809, a gasket is proposed in which there are voids which, by fitting the gasket into the gasket groove and at high compression pressures in the operating state, allow a dodge of the gasket material. With both of these solutions you can achieve that the packages are easier to assemble, but you still have the increased manufacturing costs for producing the dovetail note.
15 Samtidigt blev der offentliggjort løsninger, ved hvilke klæbningen af pakningen heller ikke mere er nødvendig og uden at svalehalenoten var nødvendig. Således blev ifølge GB 2 069 680 pakningen fastholdt i den trapezformede med positiv åbningsvinkel udformede pakningsnot på den måde, at 20 der var udformet trykknaplignende tappe på pakningen, og at disse blev trykket gennem huller i bunden af noten på varmevekslerpladerne .15 At the same time, solutions were published in which the adhesion of the gasket is also no longer necessary and without the swallowtail note was necessary. Thus, according to GB 2,069,680, the gasket was retained in the trapezoidal positive opening angle gasket groove in such a way that 20 push-button-like pins were formed on the gasket and were pressed through holes at the bottom of the groove on the heat exchanger plates.
Endvidere kendes der fra DE 8 701 365 pakningsnoter med på 25 sidefladerne udformede sikker i hele pakningsnotens længde eller kun stedvist. I dette tilfælde har pakningerne kongruente indformninger, således at forbindelsen mellem pakningen og varmevekslerpladen etableres ved indgreb efter ind-presningen af pakningen i noten. Disse samlingsvarianter er 30 ganske vist alternativer til indklæbningen af pakningen; men de kræver forøgede omkostninger til fremstillingen af pakningsnoten. Dermed resulterer de, på grund af det store antal varmevekslerplader i en pladevarmeveksler i en væsentlig forøgelse af fremstillingsprisen.Furthermore, from DE 8 701 365 packing notes with the 25 side faces are known to be secure throughout the length of the packing note or only in place. In this case, the gaskets have congruent shapes so that the connection between the gasket and the heat exchanger plate is established by engagement after the gasket is pressed into the groove. These assembly variants are admittedly alternatives to the adhesive of the gasket; but they require increased costs for the manufacture of the packing note. Thus, due to the large number of heat exchanger plates, a plate heat exchanger results in a substantial increase in the manufacturing price.
Det er formålet med opfindelsen at frembringe en tætning af 35 3 DK 166518 B1 varmevekslerpladerne mod hverandre uden en fastklæbning af pakningerne til varmevekslerpladerne og uden ekstra funktionselementer i pakningsnoten, idet omkostningerne til fremstilling af pakningsnoten svarer til omkostningerne til 5 fremstilling af de traditionelle, klæbede pakninger.SUMMARY OF THE INVENTION It is an object of the invention to provide a seal of the heat exchanger plates against one another without adhering to the seals for the heat exchanger plates and without additional functional elements in the sealing groove, the cost of producing the sealing groove corresponding to the cost of producing the traditional sealed seals. .
Opfindelsens opgave er at frembringe en klæbningsfri tætning mellem varmevekslerpladerne indbyrdes i en pladevarmeveksler, som gør det muligt uden klæbning at fastgøre 10 pakningen i varmevekslerpladens not så godt, at den under transport og håndtering indtil indsætningen i pladepakken ikke løsner sig, og samtidigt er fastholdt -således, at den yder en sikker tætning efter montagen i pladevarmeveksleren.The object of the invention is to provide an adhesive-free seal between the heat exchanger plates in a plate heat exchanger, which allows without adhesion to secure the packing in the heat exchanger plate's groove so well that during transport and handling until the insertion in the plate package is not detached, and at the same time retained - so that it provides a secure seal after mounting in the plate heat exchanger.
1515
Ifølge opfindelsen opnås formålet ved en varmeveksler, som er ejendommelig ved, at der i pakningsnoten er placeret en med parallelle sideflader udformet pakning, som i sidefladernes nedre halvdel udviser udragende, foretrukket kile-20 formede udvidelser, og at udvidelsernes maksimale bredde er større end pakningsnotens bredde. Ved anbringelsen af de kileformede udvidelser på den nederste halvdel af pakningens sideflader opnår man, at de udragende, kileformede udvidelser ved indtrykningen af pakningen i pakningsnoten 25 trykkes sammen, det vil sige, at de kileformede udvidelser lægger sig an mod pakningen. Ved deres stræben efter igen at indtage deres oprindelige form, rejser de kileformede udvidelser sig efter indpresningen, og der etableres en klemmevirkning af pakningen i pakningsnoten, hvilket for-30 hindrer en udglidning af noten. Herfor er det nødvendigt, at pakningen er dimensioneret således, at udvidelsernes maksimale bredde er større end pakningsnotens bredde. De kileformede udvidelsers bredde må kun overstige pakningsnotens bredde ubetydeligt. Pakningens klemmevirkning i pak-35 ningsnoten opnås såvel i retvinklede som i trapezformede tværsnit med små positive eller negative åbningsvinkler i 4 DK 166518 B1 pakningsnoten. Herunder kan man i forhold til retvinklede tværsnit for pakningsnoten tillade en parallelitetsafvigelse for sidefladerne på ±2°. Pakningen er udformet med parallelt forløbende sideflader. Tolerancen mellem pakning 5 og pakningsnot holdes således, at en indføring af pakningen i pakningsnoten er tilnærmelsesvis spaltefri og mulig uden stor kraftudøvelse. De på pakningens sideflader forekommende, udragende, kileformede udvidelser kan strække sig over hele pakningens omkreds. De kan dog også udformes, så de 10 kun findes på bestemte steder i afbrudt følge over pakningens længdeforløb.According to the invention, the object is achieved by a heat exchanger, which is characterized in that a packing groove formed in parallel side faces, which has protruding, preferably wedge-shaped extensions in the lower half of the side faces and that the maximum width of the extensions is greater than that of the packing groove. width. By placing the wedge-shaped extensions on the lower half of the side faces of the gasket, it is obtained that the protruding wedge-shaped extensions are pressed into the gasket 25 when pressed into the gasket, that is, the wedge-shaped extensions abut against the gasket. In their quest to regain their original shape, the wedge-shaped expansions rise after the pressing and a clamping effect of the gasket is established in the gasket, which prevents slipping of the note. For this, it is necessary that the gasket is dimensioned such that the maximum width of the extensions is greater than the width of the gasket. The width of the wedge-shaped extensions may only slightly exceed the width of the gasket. The clamping effect of the gasket in the gasket groove is achieved in both right-angled and trapezoidal cross-sections with small positive or negative opening angles in the gasket groove. Below this, a parallel deviation of the side surfaces of ± 2 ° can be allowed in relation to the right-angled cross sections of the packing note. The gasket is designed with parallel extending side surfaces. The tolerance between gasket 5 and gasket groove is maintained such that an insertion of gasket into the gasket groove is virtually gap-free and possible without excessive force exertion. The protruding, protruding, wedge-shaped extensions present on the side surfaces of the gasket may extend over the entire circumference of the gasket. However, they can also be designed so that the 10 can only be found at specific locations in interrupted sequence over the length of the pack.
Opfindelsen skal nedenfor beskrives nærmere under henvisning til den medfølgende tegning. Denne viser i: 15The invention will be described in more detail below with reference to the accompanying drawings. This one shows in: 15
Fig. 1 en varmevekslerplade, i fig. 2 et tværsnit gennem en varmevekslerplade med indlagt pakning, i 20 fig. 3 og 4 mulige typer pakningstværsnit, i fig. 5 et tværsnit gennem en pakningsnot, i 25 fig. 5 et tværsnit gennem en pakningsnot, i fig. 6 et tværsnit gennem en trapzformet pakningsnot med en negativ åbningsvinkel og med indlagt pakning, og i 30 fig. 7 en pakning med kun stedvist udformede udvidelser.FIG. 1 shows a heat exchanger plate; FIG. 2 is a cross-section through a heat exchanger plate with inset gasket; FIG. 3 and 4 possible types of packing cross-sections, in FIG. 5 is a cross-section through a packing groove; FIG. 5 is a cross-section through a packing groove in FIG. 6 is a cross-section through a trapezoidal packing groove having a negative opening angle and with inset gasket, and in FIG. 7 a package with only locally designed extensions.
Fig. 1 illustrerer en varmevekslerplade, hvis varmevekslerflade samt tilførsels- og udløbsåbninger er omsluttet af 35 en pakningsnot 1. Pakningsnoten 1 har, som det er vist i fig. 2, et rektangulært tværsnit. I pakningsnoten 1 er der DK 166518 Bl 5 indlagt en rektangulær pakning 2, hvis sideflader 3 og 4 forløber parallelt. Som det kan ses på fig. 3, findes der på sidefladernes 3 og 4 nederste halvdel udragende, foretrukket kileformede udvidelser. Udvidelserne kan have skrå-5 flade til den ene side eller ifølge fig. 4 også til begge sider. Fig. 5 viser en rektangulær pakningsnot 2, hvis bredde 8 tolerance'mæssigt er afpasset således med pakningens bredde 7, at en problemfri indlægning af pakningen 2 i pakningsnoten 1 er mulig uden kraftudøvelse. De kileformede 10 udvidelsers 5 maksimale bredde 6 er større end pakningsnotens 1 bredde 8. Indlægges pakningen 2 i varmevekslerpladens pakningsnot 1, lægger de kileformede udvidelser 5 sig ved indtrykningen an mod pakningen 2. Efter indføringen forsøger de kileformede udvidelser 5 igen at rette sig 15 op, og der etableres en klemmevirkning, hvorved en udglid-ning af noten bliver forhindret. Pakningsnotens 1 sideflader kan have en afvigelse fra indbyrdes parallelitet på ±2°. Som fig. 6 viser, kan man også indsætte en pakning 2, som er udformet således ifølge opfindelsen i en svalehale-20 formet pakningsnot. I dette tilfælde er det ganske vist nødvendigt med større omkostninger til fremstillingen af svalehalenoten, men montage af pakningsnoten 1 kan ske uden stor kraftudøvelse.FIG. 1 illustrates a heat exchanger plate whose heat exchanger surface and supply and outlet openings are enclosed by a gasket groove 1. The gasket groove 1 has, as shown in FIG. 2, a rectangular cross section. In the packing note 1, a rectangular gasket 2 is inserted, the side faces 3 and 4 of which extend in parallel. As can be seen in FIG. 3, there are protruding, preferably wedge-shaped extensions on the lower half of the side surfaces 3 and 4. The extensions may be inclined to one side or according to FIG. 4 also for both sides. FIG. 5 shows a rectangular packing groove 2 whose width 8 is tolerably adapted to the width of the packing 7 so that a seamless insertion of the packing 2 into the packing groove 1 is possible without force exertion. The maximum width 6 of the wedge-shaped 10 extensions 5 is greater than the width 8. of the gland groove 1 If the gasket 2 is inserted into the gasket groove 1 of the heat exchanger, the wedge-shaped extensions 5 are pressed against the gasket 2 after the insertion. , and a clamping effect is established, thereby preventing slipping of the note. The side faces of the packing groove 1 may have a deviation from mutual parallel of ± 2 °. As FIG. 6, a gasket 2 which is thus designed according to the invention can also be inserted into a dovetail-shaped gasket groove. In this case, it is necessary to incur greater costs for the production of the dovetail note, but mounting of the gasket note 1 can be done without much force.
25 Fig. 7 viser en pakning, der kun stedvist, i afbrudt følge, har kileformede udvidelser 5, således at der kun på disse steder etableres en klemmevirkning.FIG. 7 shows a gasket which, in place only, in discontinuous order, has wedge-shaped extensions 5, so that only at these places a clamping effect is established.
Opfindelsens fordel er, at tætning af varmevekslerpladerne 30 mod hverandre blev frembragt, uden at det var nødvendigt med en sammenklæbning af pakningen 2 og varmevekslerpladen eller anvendelse af ekstra funktionselementer i pakningsnoten 1.The advantage of the invention is that sealing of the heat exchanger plates 30 was provided to each other without the need for an adhesive of the gasket 2 and the heat exchanger plate or the use of extra functional elements in the gasket groove 1.
35 Løsningen ifølge opfindelsen muliggør en enkel indlægning af pakningen 2 i en rektangulær eller trapezformet pak- DK 166518 B1 6 ningsnot 1 uden kraftudøvelse ved samtidig etablering af klemmevirkning af pakningen 2 i pakningsnoten 1, som udelukker udfald under transport eller ved håndtering af pladerne indtil varmevekslerens montage.The solution according to the invention enables a simple insertion of the gasket 2 into a rectangular or trapezoidal groove 1 without force exertion by simultaneously establishing the clamping effect of the gasket 2 in the gasket groove 1, which precludes dropout during transport or handling of the plates until the heat exchanger assembly.
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD88315870A DD271947A1 (en) | 1988-05-18 | 1988-05-18 | plate heat exchanger |
| DD31587088 | 1988-05-18 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK164489D0 DK164489D0 (en) | 1989-04-05 |
| DK164489A DK164489A (en) | 1989-11-19 |
| DK166518B1 true DK166518B1 (en) | 1993-06-01 |
Family
ID=5599331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK164489A DK166518B1 (en) | 1988-05-18 | 1989-04-05 | PLATE HEAT EXCHANGE |
Country Status (5)
| Country | Link |
|---|---|
| DD (1) | DD271947A1 (en) |
| DE (1) | DE3910070A1 (en) |
| DK (1) | DK166518B1 (en) |
| GB (1) | GB2218795B (en) |
| SE (1) | SE467638B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4239049C1 (en) * | 1992-11-20 | 1993-10-14 | Balcke Duerr Ag | Plate heat exchanger |
| DE102004015775B4 (en) * | 2004-03-31 | 2014-04-10 | Sgl Carbon Se | Shell and tube heat exchangers |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB655076A (en) * | 1947-02-24 | 1951-07-11 | Cherry Burrell Corp | Improvements in or relating to gaskets for plate apparatus in particular plate type heat exchangers or filter presses |
| GB766932A (en) * | 1953-10-29 | 1957-01-30 | Separator Ab | Improvements in and relating to plate type heat exchangers |
| GB1443428A (en) * | 1972-11-01 | 1976-07-21 | Schlegel Uk Ltd | Weatherbar |
| GB2136485A (en) * | 1983-03-12 | 1984-09-19 | Ventrolla Ltd | Door sealing strips |
| WO1987001189A1 (en) * | 1985-08-22 | 1987-02-26 | Pasilac Therm A/S | Heat exchanger sheet with an appertaining packing |
-
1988
- 1988-05-18 DD DD88315870A patent/DD271947A1/en not_active IP Right Cessation
-
1989
- 1989-03-28 DE DE3910070A patent/DE3910070A1/en not_active Withdrawn
- 1989-04-05 DK DK164489A patent/DK166518B1/en not_active IP Right Cessation
- 1989-05-11 GB GB8910862A patent/GB2218795B/en not_active Expired - Fee Related
- 1989-05-11 SE SE8901694A patent/SE467638B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB2218795A (en) | 1989-11-22 |
| GB2218795B (en) | 1992-08-12 |
| SE8901694L (en) | 1989-11-19 |
| GB8910862D0 (en) | 1989-06-28 |
| SE467638B (en) | 1992-08-17 |
| DE3910070A1 (en) | 1989-11-30 |
| DK164489D0 (en) | 1989-04-05 |
| SE8901694D0 (en) | 1989-05-11 |
| DD271947A1 (en) | 1989-09-20 |
| DK164489A (en) | 1989-11-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B1 | Patent granted (law 1993) | ||
| PBP | Patent lapsed | ||
| PBP | Patent lapsed |