EP0017202A2 - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- EP0017202A2 EP0017202A2 EP80101693A EP80101693A EP0017202A2 EP 0017202 A2 EP0017202 A2 EP 0017202A2 EP 80101693 A EP80101693 A EP 80101693A EP 80101693 A EP80101693 A EP 80101693A EP 0017202 A2 EP0017202 A2 EP 0017202A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- heat exchanger
- exchanger according
- diameter
- inflow
- 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
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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
- 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
- F28D7/10—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 arranged one within the other, e.g. concentrically
- F28D7/12—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 arranged one within the other, e.g. concentrically the surrounding tube being closed at one end, e.g. return type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
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- 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
Definitions
- the invention relates to an arrangement for heat exchange with at least one tube provided with a number of annular ribs, with a guide body closely surrounding the ribs and an inflow nozzle and an outflow nozzle.
- Such an arrangement is known from FR-PS 20 58 516.
- the problem with such heat exchangers is to bring the gases or liquids to be cooled or heated into as good a contact as possible with the heat exchange surface.
- the width of the inlet opening and the outlet opening is the same. It is about twice the height of the fins of the finned tube.
- the outflow nozzle is designed there as a diffuser.
- the width of the inflow nozzle first decreases in the direction of the flow direction to a minimum value E and then increases again by a small amount.
- the proposed arrangement considerably improves the heat transfer values between the heat-carrying medium and the finned tubes.
- Another advantage of the proposed arrangement is the lower tendency to contamination, because the heat exchange tube is completely flowed around, so that, as in known arrangements, parts of the exchange surface are not in the "dead water" of the flow.
- the height r of the ribs of the tube is approximately 0.15 to 0.3 times the diameter of the tube. With these values, the rib efficiency is particularly favorable. It is also advantageous according to the invention that the diameter of the tube is at least 70 mm and the minimum thickness of a rib is 1.5 mm. With this: value-increasing pipe diameter increases the heat transfer.
- the guide bodies consist of two sheet metal bodies which are bent in a semicircular shape and are fastened in a housing.
- the guide bodies consist of sheet metal parts bent in a quarter circle, the inflow openings lying opposite one another and the inflow openings being spatially offset from one another by approximately 90 ° with respect to the outflow openings.
- the outflow opening of the outflow channel is formed from sheet metal parts running in parallel.
- a further tube is provided which is arranged concentrically to this and which is connected via a flange to a further flange arranged on the finned tube.
- This arrangement allows the inner tube to be easily removed, which allows convenient control of the inner exchange surface in heat exchangers which are subject to a safety check.
- the outer tube is conveniently closed at its end with a bottom.
- the ribbing and the outer tube only extend over part of its length.
- the cross-section of the non-finned part of the tube is expanded and a flange that can be connected to a housing and a pipe socket are arranged on this part.
- 5 denotes the finned tube, on which annular fins 3 are arranged. It is surrounded by two semicircular guide bodies, which are designed as S-flow guide plates 4 in FIG. 1, so that an annular gap 2 is formed between the guide plates 4 and the tube 5.
- the two flow guide plates 4 merge in the axial direction into an inflow nozzle 1, which runs parallel to the finned tube 5 and has an inflow opening 1. 1 and an outflow opening 1.2.
- the inflow nozzles 1 and the outflow channels each consist of sheets which are fastened to a housing 21.
- the width E of the inflow nozzle 1 first decreases in the direction of the flow direction to a minimum value E and then increases again by a small amount.
- the smallest width of the inlet opening 1.1 of the nozzle is smaller than the diameter of the tube 5. Very favorable heat transfer values can be achieved if the width of the inlet opening corresponds approximately to the difference between the sizes of the tube diameter d and the simple height r of a rib 3.
- the width A of the outflow opening 1.2 of the outflow channel is smaller than that of the inlet opening 1.1. Very favorable heat transfer values can be achieved with a width A of the outlet opening 1.2 if this corresponds approximately to twice the height r of a rib 3.
- the flow guide plates are each designed in a quarter circle and the two inflow openings lie opposite one another, while the two outflow openings are each offset by 90 ° with respect to the outflow openings.
- a second tube 6 is arranged concentrically to the finned tube and fixed in position by spacers 7.
- One end of the finned tube 5 is closed by a bottom 8.
- the ribbing of the outer tube 5 extends only over part of its length. It increases in diameter outside the ribbing and ends in a flange 14 which is connected to a flange 15 of the inner tube 6.
- a pipe socket 10 is arranged on the non-finned part of the pipe 5, through which one of the two gases or liquids can flow out.
- the finned tube 5 is provided in its wider section 3.1 with a further flange 16 which is connected to the flange 13 of a housing 21.
- a further flange 16 which is connected to the flange 13 of a housing 21.
- the gas or liquid flows into the housing from the left in the direction of the arrow in FIG. 1 and is passed through the displacer plates 1 into the annular gap 2 between the finned tube 5 of the flow guide plates 4.
- the gas or the liquid enters from two opposite points - and flows around the finned tube only by 90 ° in order to emerge again at the two outlet openings 1.2.
- This arrangement is particularly advantageous in the case of pulsating flows, since the flow against two sides of vibrations is prevented.
- the direction of flow of the second liquid or of the second gas is indicated by arrows.
- the gas enters the inner tube 6 from the right, reverses its direction at the bottom 8 of the finned tube 5 and flows back into the space between the finned tube 3 and the inner tube 6 and leaves the interior of the finned tube 3 through the pipe socket 10.
- the heat exchange tube can be conveniently pulled out of the housing 12 after loosening the housing flange connection 13.
- the expansion of the inner tube 6 is possible by loosening the flange connection 14, so that simple assembly and inexpensive maintenance and cleaning of the heat exchanger is possible.
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)
Abstract
Description
Die Erfindung bezieht sich auf eine Anordnung zum Wärmeaustausch mit mindestens einem mit einer Anzahl von kreisringförmigen Rippen versehenen Rohr , mit einem die Rippen eng umschließenden Leitkörper und einer Einströmdüse und einer Ausströmdüse. Eine solche Anordnung ist aus der FR-PS 20 58 516 bekannt.The invention relates to an arrangement for heat exchange with at least one tube provided with a number of annular ribs, with a guide body closely surrounding the ribs and an inflow nozzle and an outflow nozzle. Such an arrangement is known from FR-PS 20 58 516.
Bei solchen Wärmeaustauschern besteht das Problem, die zu kühlenden oder zu erhitzenden Gase oder Flüssigkeiten in möglichst guten Kontakt zur Wärmeaustauschfläche zu bringen. Bei der oben erwähnten bekannten Anordnung ist die Breite der Eintrittsöffnung und der Austrittsöffnung gleich groß. Sie beträgt etwa das Doppelte der Höhe der Rippen des Rippenrohres. Außerdem ist dort die Ausströmdüse als Diffusor ausgebildet. Bei dieser bekannten Anordnung ergibt sich bereits gegenüber konventionellen Anordnungen eine verbesserte Umströmung der Wärmeaustauschfläche. Sie ist jedoch bei Rohren größeren Durchmessers aus strömungstechnischen Gründen, insbesondere wegen der sehr starken Beschleunigungen des strömenden Mediums im Bereich der Einlaufdüse und der damit verbundenen Strömungswiderstände ungünstig.The problem with such heat exchangers is to bring the gases or liquids to be cooled or heated into as good a contact as possible with the heat exchange surface. In the known arrangement mentioned above, the width of the inlet opening and the outlet opening is the same. It is about twice the height of the fins of the finned tube. In addition, the outflow nozzle is designed there as a diffuser. With this known arrangement there is already an improved flow around the heat exchange surface compared to conventional arrangements. However, it is in the case of pipes of larger diameter, for fluidic reasons, particularly unfavorable because of the very strong accelerations of the flowing medium in the area of the inlet nozzle and the associated flow resistances.
Es ist die Aufgabe der Erfindung, die oben beschriebene Anordnung im Sinne einer weiteren Verbesserung der Umströmung der Wärmeaustauschfläche und einer Verminderung des Strömungswiderstandes weiterzubilden, um eine höhere Strömungsgeschwindigkeit und eine Verbesserung des Wärmeüberganges zu erreichen. Eine weitere Aufgabe der Erfindung besteht darin, die Demontage der Rohre und damit die Beseitigung von Verschmutzungen zu erleichtern.It is the object of the invention to develop the arrangement described above in the sense of a further improvement in the flow around the heat exchange surface and a reduction in the flow resistance in order to achieve a higher flow rate and an improvement in the heat transfer. Another object of the invention is to facilitate the disassembly of the pipes and thus the removal of dirt.
Diese Aufgabe wird erfindungsgemäß durch die Anwendung der folgenden Merkmale gelöst:
- a) die Höhe der Rippen des Rippenrohres ist kleiner als der Durchmesser des Rohres,
- b) die Breite E der Einströmöffnung der Einströmdüse ist kleiner als der Durchmesser des Rohres,
- c) die Breite A der Ausströmöffnung des Ausströmkanales ist kleiner als die der Eintrittsöffnung der Einströmdüse.
- a) the height of the fins of the finned tube is smaller than the diameter of the tube,
- b) the width E of the inflow opening of the inflow nozzle is smaller than the diameter of the tube,
- c) the width A of the outflow opening of the outflow channel is smaller than that of the inlet opening of the inflow nozzle.
Die Breite der Einströmdüse vermindert sich zuerst in Richtung der Strömungsrichtung auf einen kleinsten Wert E und vergrößert sich dann wieder um einen geringen Betrag.. Durch die vorgeschlagene Anordnung werden die Wärmeübergangswerte zwischen dem wärmeführenden Medium und den Rippenrohren beträchtlich verbessert. Ein weiterer Vorteil der vorgeschlagenen Anordnung ist die geringere Neigung zu Verschmutzungen, weil das Wärmeaustauschrohr voll umströmt ist, daß also nicht wie bei bekannten Anordnungen Teilbereiche der Austauschfläche im "Totwasser" der Strömung liegen.The width of the inflow nozzle first decreases in the direction of the flow direction to a minimum value E and then increases again by a small amount. The proposed arrangement considerably improves the heat transfer values between the heat-carrying medium and the finned tubes. Another advantage of the proposed arrangement is the lower tendency to contamination, because the heat exchange tube is completely flowed around, so that, as in known arrangements, parts of the exchange surface are not in the "dead water" of the flow.
Dabei beträgt erfindungsgemäß die Höhe r der Rippen des Rohres etwa das 0,15- bis 0,3-fache des Durchmessers des Rohres. Mit diesen Werten wird der Rippenwirkungsgrad besonders günstig. Weiterhin ist es erfindungsgemäß vorteilhaft, daß der Durchmesser des Rohres mindestens 70 mm und die Mindeststärke einer Rippe 1,5 mm beträgt. Mit von dieser.: Wert ausgehender Vergrößerung des Rohrdurchmessers verbessert sich der Wärmeübergang.According to the invention, the height r of the ribs of the tube is approximately 0.15 to 0.3 times the diameter of the tube. With these values, the rib efficiency is particularly favorable. It is also advantageous according to the invention that the diameter of the tube is at least 70 mm and the minimum thickness of a rib is 1.5 mm. With this: value-increasing pipe diameter increases the heat transfer.
In zweckmäßiger Weise ist vorgesehen, daß die Leitkörper aus zwei in einem Gehäuse befestigten halbkreisförmig gebogenen Blechkörpern bestehen.It is expediently provided that the guide bodies consist of two sheet metal bodies which are bent in a semicircular shape and are fastened in a housing.
Bei einer weiteren Ausführungsform der Erfindung ist vorgesehen, daß die Leitkörper aus viertelkreisförmig gebogenen Blechteilen bestehen, wobei sich die Einströmöffnungen und gegenüber liegen und die Einströmöffnungen gegenüber den Ausströmöffnungen jeweils um etwa 90° räumlich versetzt gegeneinander angeordnet sind.In a further embodiment of the invention it is provided that the guide bodies consist of sheet metal parts bent in a quarter circle, the inflow openings lying opposite one another and the inflow openings being spatially offset from one another by approximately 90 ° with respect to the outflow openings.
Nach einem weiteren Merkmal der Erfindung ist vorgesehen, daß die Ausströmöffnung des Ausströmkanales aus parallel verlaufenden Blechteilen gebildet ist.According to a further feature of the invention, it is provided that the outflow opening of the outflow channel is formed from sheet metal parts running in parallel.
Bei einer Weiterbildung der Erfindung ist vorgesehen, daß innerhalb des Rippenrohres ein konzentrisch zu diesem angeordnetes weiteres Rohr vorgesehen ist, welches über einen Flansch mit einem weiteren am Rippenrohr angeordneten Flansch verbunden ist.In a further development of the invention it is provided that within the finned tube a further tube is provided which is arranged concentrically to this and which is connected via a flange to a further flange arranged on the finned tube.
Diese Anordnung erlaubt es, das Innenrohr leicht herauszunehmen, was eine bequeme Kontrolle der inneren Austauschfläche bei Wärmeaustauschern, welche einer sicherheitstechnischen Kontrolle unterliegen, gestattet.This arrangement allows the inner tube to be easily removed, which allows convenient control of the inner exchange surface in heat exchangers which are subject to a safety check.
Bei dieser Ausführungsform ist in zweckmäßiger Weise das äußere Rohr an seinem Ende mit einem Boden verschlossen.In this embodiment, the outer tube is conveniently closed at its end with a bottom.
Weiterhin ist erfindungsgemäß vorgesehen, daß sich die Berippung und des äußeren Rohres nur auf einen Teil seiner Länge erstreckt.It is further provided according to the invention that the ribbing and the outer tube only extend over part of its length.
Dabei ist an der nicht berippten Partie des Rohres dessen Querschnitt erweitert und an dieser Partie ist ein mit einem Gehäuse verbindbarer Flansch sowie ein Rohrstutzen angeordnet.The cross-section of the non-finned part of the tube is expanded and a flange that can be connected to a housing and a pipe socket are arranged on this part.
Weitere Ausbildungsformen der Erfindung sind aus den beiden Ausführungsbeispielen zu entnehmen.Further embodiments of the invention can be found in the two exemplary embodiments.
Es zeigen: ,
- Fig. 1 einen Querschnitt durch einen in ein Gehäuse eingebauten Wärmeaustauscher nach der Erfindung,
- Fig. 2 einen Querschnitt durch einen von zwei Seiten angeströmten Wärmeaustauscher nach der Erfindung,
- Fig. 3 einen Längsschnitt durch einen Wärmeaustauscher nach der Erfindung.
- 1 shows a cross section through a heat exchanger according to the invention installed in a housing,
- 2 shows a cross section through a heat exchanger according to the invention, flow from two sides,
- Fig. 3 shows a longitudinal section through a heat exchanger according to the invention.
In den Zeichnungen ist mit 5 das Rippenrohr,auf dem ringförmige Rippen 3 angeordnet sind, bezeichnet. Es ist von zwei halbkreisförmigen Leitkörpern, die bei Fig. 1 als S-trömungsleitbleche 4 ausgebildet sind, umgeben, so daß zwischen den-Leitblechen 4 und dem Rohr 5 ein Ringspalt 2 entsteht. Die beiden Strömungsleitbleche 4 gehen in axialer Richtung in eine parallel zum Rippenrohr 5 verlaufende Einströmdüse 1 mit einer Einströmöffnung l.l und eine Ausströmöffnung 1.2 über. Die Einströmdüsen 1 sowie die Ausströmkanäle bestehen jeweils aus Blechen, die an einem Gehäuse 21 befestigt sind. Die Breite E der Einströmdüse 1 vermindert sich zuerst in Richtung der Strömungsrichtung auf einen kleinsten Wert E und vergrößert sich dann wieder um einen geringen Betrag.In the drawings, 5 denotes the finned tube, on which annular fins 3 are arranged. It is surrounded by two semicircular guide bodies, which are designed as S-flow guide plates 4 in FIG. 1, so that an annular gap 2 is formed between the guide plates 4 and the
Die kleinste Breite der Einströmöffnung 1.1 der Düse ist kleiner als der Durchmesser des Rohres 5. Sehr günstige Närmeübertragungswerte lassen sich erreichen, wenn die Breite der Einströmöffnung etwa der Differenz der Größen des Rohrdurchmessers d und der einfachen Höhe r einer Rippe 3 entspricht.The smallest width of the inlet opening 1.1 of the nozzle is smaller than the diameter of the
Die Breite A der Ausströmöffnung 1.2 des Ausströmkanales ist kleiner als die der Eintrittsöffnung 1.1. Sehr günstige Wärmeübertragungswerte lassen sich bei einer Breite A der Austrittsöffnung 1.2 erreichen, wenn diese etwa der zweifachen Höhe r einer Rippe 3 entspricht.The width A of the outflow opening 1.2 of the outflow channel is smaller than that of the inlet opening 1.1. Very favorable heat transfer values can be achieved with a width A of the outlet opening 1.2 if this corresponds approximately to twice the height r of a rib 3.
Bei der in Fig. 2 dargestellten Anordnung sind die Strömungsleitbleche jeweils viertelkreisförmig gestaltet und die beiden Einströmöffnungen liegen sich gegenüber, während die beiden Ausströmöffnungen um jeweils 90° gegenüber den Ausströmöffnungen versetzt angeordnet sind.In the arrangement shown in FIG. 2, the flow guide plates are each designed in a quarter circle and the two inflow openings lie opposite one another, while the two outflow openings are each offset by 90 ° with respect to the outflow openings.
Innerhalb des Rippenrohres 5 ist ein zweites Rohr 6 konzentrisch zum Rippenrohr angeordnet und durch Distanzstücke 7 in seiner Lage fixiert. Das eine Ende des Rippenrohres 5 ist durch einen Boden 8 verschlossen. Die Berippung des äußeren Rohres 5 erstreckt sich nur über einen Teil seiner Länge. Es vergrößert sich außerhalb der Berippung in seinem Durchmesser und endet in einem Flansch 14, der mit einem Flansch 15 des inneren Rohres 6 verbunden ist.Within the
Weiter ist an der nicht berippten Partie des Rohres 5 ein Rohrstutzen 10 angeordnet, durch welchen das eine der beiden Gase oder Flüssigkeiten abströmen kann.Furthermore, a
Das Rippenrohr 5 ist in seiner breiteren Partie 3.1 mit einem weiteren Flansch 16 versehen, der mit dem Flansch 13 eines Gehäuses 21 verbunden ist. In der Regel werden mehrere Gehäuse zu einem Rohrbündel zusammengebaut.The
Das Gas oder die Flüssigkeit strömt in der Figur 1 von links in Richtung des Pfeiles in das Gehäuse ein und wird durch die Verdrängerbleche 1 in den Ringspalt 2 zwischen dem Rippenrohr 5 der Strömungsleitbleche 4 geleitet.The gas or liquid flows into the housing from the left in the direction of the arrow in FIG. 1 and is passed through the displacer plates 1 into the annular gap 2 between the
Es umströmt ablösungsfrei die gesamte äußere Wärmeaustauschfläche des Wärmeaustauschrohres, welche aus der freien Fläche des Rippenrohres 5 und der aufgebrachten Berippung 3 besteht.It flows around the entire outer heat exchange surface of the heat exchange tube without detachment, which consists of the free surface of the
Das Gas oder die Flüssigkeit tritt aus der rechten Seite wieder aus, wobei die Verdrängerbleche 1 die strömungstechnischen Abströmverluste verringern. Durch die besondere oben geschilderte Dimensionierung der Öffnungen des Rohres und der Rippen ergeben sich gegenüber bekannten Rohren wesentlich verbesserte Wärmeübertragungswerte. Bei -Versuchen mit den angegebenen Werten hat sich gezeigt, daß -bei gleichem Raumbedarf und gleichem Materialbedarf im günstigsten Falle etwa eine Verdoppelung gegenüber konventionellen Wärmeaustauschern erzielbar ist.The gas or the liquid emerges again from the right-hand side, the displacer plates 1 reducing the flow losses. The special dimensioning of the openings of the tube and the fins described above results in significantly improved heat transfer values compared to known tubes. Experiments with the specified values have shown that, with the same space requirement and the same material requirement, in the most favorable case, a doubling compared to conventional heat exchangers can be achieved.
-Bei der in Fig. 2 dargestellten Anordnung tritt das Gas bzw. die Flüssigkeit von zwei gegenüberliegenden Stellen - aus ein und umströmt das Rippenrohr nur um jeweils um 90° um an den beiden Austrittsöffnungen 1.2 wieder auszutreten. .Diese Anordnung ist insbesondere bei pulsierenden Strömungen durch von Vorteil, dadurch die Anströmung von zwei Seiten Schwingungen verhindert werden.In the arrangement shown in FIG. 2, the gas or the liquid enters from two opposite points - and flows around the finned tube only by 90 ° in order to emerge again at the two outlet openings 1.2. This arrangement is particularly advantageous in the case of pulsating flows, since the flow against two sides of vibrations is prevented.
In dem in Fig. 3 dargestellten Längsschnitt eines Wärmeaustauschrohres ist durch Pfeile die Fließrichtung der zweiten Flüssigkeit oder des zweiten Gases angedeutet. Das Gas tritt in das Innenrohr 6 von rechts ein, kehrt am Boden 8 des Rippenrohres 5 seine Richtung um und strömt in den Zwischenraum zwischen dem Rippenrohr 3 und dem inneren Rohr 6 zurück und verläßt den Innenraum des Rippenrohres 3 durch den Rohrstutzen 10.In the longitudinal section of a heat exchange tube shown in FIG. 3, the direction of flow of the second liquid or of the second gas is indicated by arrows. The gas enters the
Das Wärmeaustauschrohr kann nach Lösen der Gehäuseflanschverbindung 13 aus dem Gehäuse 12 bequem herausgezogen werden. Der Ausbau des Innenrohres 6 ist durch Lösung der Flanschverbindung 14 möglich, so daß eine einfache Montage und eine kostengünstige Wartung und Reinigung des Wärmeaustauschers möglich ist.The heat exchange tube can be conveniently pulled out of the housing 12 after loosening the
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT80101693T ATE933T1 (en) | 1979-03-31 | 1980-03-29 | HEAT EXCHANGER. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792912998 DE2912998A1 (en) | 1979-03-31 | 1979-03-31 | Finned heat exchanger pipe - has closely fitting external guide fins generating flow round heat exchange surface |
DE2912998 | 1979-03-31 | ||
DE3005958 | 1980-02-16 | ||
DE19803005958 DE3005958A1 (en) | 1980-02-16 | 1980-02-16 | Heat exchanger with finned inner tube - has larger inlet than outlet for external chamber and second chamber inside |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0017202A2 true EP0017202A2 (en) | 1980-10-15 |
EP0017202A3 EP0017202A3 (en) | 1980-11-26 |
EP0017202B1 EP0017202B1 (en) | 1982-04-28 |
Family
ID=25778514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80101693A Expired EP0017202B1 (en) | 1979-03-31 | 1980-03-29 | Heat exchanger |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0017202B1 (en) |
DE (1) | DE3060325D1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992014110A1 (en) * | 1991-02-08 | 1992-08-20 | Withyman Brian Arthur Frederic | Heat-transfer conduits for use particularly in solar heating systems, and improvements relating to such systems |
CN110030849A (en) * | 2019-04-17 | 2019-07-19 | 苏宇贵 | Package heat-exchanger rig and its application method |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE138943C (en) * | ||||
DE335361C (en) * | 1921-03-31 | Dipl Jng Heinrich Foege | Heat exchange device for pipe systems | |
GB500389A (en) * | 1937-11-16 | 1939-02-08 | British Leyland Motor Corp | Improvements in and relating to tubular heat exchangers for fluids |
FR841618A (en) * | 1938-01-28 | 1939-05-24 | Heat exchange process, and construction devices | |
GB850532A (en) * | 1957-09-20 | 1960-10-05 | Carves Simon Ltd | Improvements in and relating to heat exchangers |
GB934631A (en) * | 1959-12-11 | 1963-08-21 | Andre Huet | Tubular heat exchanger |
US3160145A (en) * | 1962-07-20 | 1964-12-08 | Avy L Miller | Fluid heater |
DE1940963A1 (en) * | 1969-08-12 | 1971-02-25 | Maschf Augsburg Nuernberg Ag | Heat exchanger made of finned tubes with cross flow |
-
1980
- 1980-03-29 EP EP80101693A patent/EP0017202B1/en not_active Expired
- 1980-03-29 DE DE8080101693T patent/DE3060325D1/en not_active Expired
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE138943C (en) * | ||||
DE335361C (en) * | 1921-03-31 | Dipl Jng Heinrich Foege | Heat exchange device for pipe systems | |
GB500389A (en) * | 1937-11-16 | 1939-02-08 | British Leyland Motor Corp | Improvements in and relating to tubular heat exchangers for fluids |
FR841618A (en) * | 1938-01-28 | 1939-05-24 | Heat exchange process, and construction devices | |
GB850532A (en) * | 1957-09-20 | 1960-10-05 | Carves Simon Ltd | Improvements in and relating to heat exchangers |
GB934631A (en) * | 1959-12-11 | 1963-08-21 | Andre Huet | Tubular heat exchanger |
US3160145A (en) * | 1962-07-20 | 1964-12-08 | Avy L Miller | Fluid heater |
DE1940963A1 (en) * | 1969-08-12 | 1971-02-25 | Maschf Augsburg Nuernberg Ag | Heat exchanger made of finned tubes with cross flow |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992014110A1 (en) * | 1991-02-08 | 1992-08-20 | Withyman Brian Arthur Frederic | Heat-transfer conduits for use particularly in solar heating systems, and improvements relating to such systems |
CN110030849A (en) * | 2019-04-17 | 2019-07-19 | 苏宇贵 | Package heat-exchanger rig and its application method |
Also Published As
Publication number | Publication date |
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EP0017202B1 (en) | 1982-04-28 |
EP0017202A3 (en) | 1980-11-26 |
DE3060325D1 (en) | 1982-06-09 |
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