EP1256770B1 - Air-cooled condenser or air-heated evaporator - Google Patents

Air-cooled condenser or air-heated evaporator Download PDF

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Publication number
EP1256770B1
EP1256770B1 EP02009647A EP02009647A EP1256770B1 EP 1256770 B1 EP1256770 B1 EP 1256770B1 EP 02009647 A EP02009647 A EP 02009647A EP 02009647 A EP02009647 A EP 02009647A EP 1256770 B1 EP1256770 B1 EP 1256770B1
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EP
European Patent Office
Prior art keywords
air
cooled
cooling agent
liquefier
housing
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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.)
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EP02009647A
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German (de)
French (fr)
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EP1256770A1 (en
Inventor
Jose Ribeiro Henriques
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Teko Gesellschaft fuer Kaeltetechnik mbH
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Teko Gesellschaft fuer Kaeltetechnik mbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
    • F28B1/06—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
    • 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
    • F28D1/047—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 bent, e.g. in a serpentine or zig-zag
    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core

Definitions

  • the invention relates to an air-cooled condenser or an air-heated evaporator, consisting of a fan-evaporator housing, in which at least one fan is arranged in front of a plurality of curved and ribbed coolant tubes, which form a circular arc-shaped outer surface of the housing and arranged at intervals A one above the other, each with a constant radius R. are.
  • high-throughput evaporators which are manufactured as a heat exchanger block with copper pipes and aluminum fins.
  • the copper tubes are referred to as the primary surface and the aluminum fins as a secondary surface.
  • Object of the present invention is to improve the design of air-cooled condensers or evaporators such that with minimal space consumption optimal air distribution is achieved with low noise.
  • air speed and ⁇ T should be adjustable within wide limits, and even in the high power level still a relatively low energy consumption should be achieved.
  • the coolant tubes are arranged semicircular on the outer surface of the circular arc-shaped housing. They lie at intervals one above the other with a constant radius wherein the ribs are perpendicular to the radii and the coolant tubes are connected to each other with a larger fin spacing.
  • the fin spacing between 6 and 10 mm, wherein the space between the tubes and the vertical ribs or fins should be designed as a diffuser.
  • the spacing of the lamellae in the circular plane from a minimum A min on the side facing the center of the circle on a distance maximum A max formed on the outer side of the housing increasing.
  • the emission direction and the volume flow of the air-cooled condenser or evaporator can be made adjustable via the diffuser openings between the fins or ribs of the coolant tubes, wherein the space between the perforated cylinder portion and the inner edges of the verripten coolant tubes is designed as storage space.
  • circle segments are used with segment angles ⁇ of 45 °, 60 °, 90 °, 180 ° or 360 °.
  • the placement of the condenser or evaporator according to the invention can take place in a corner, on the wall or in the middle of the space to be cooled.
  • the larger fin spacing is particularly low because of the avoidance of icing, with round plate packs can be made with integral lamellae of up to four rows of tubes in depth.
  • FIG. 1 shows an inventive air-cooled condenser or evaporator is shown, consisting of a cylinder segment with semicircular base, which is designed as a fan or evaporator housing 1 with cylindrical shell-shaped curved and ribbed coolant tubes 2.
  • the housing 1 is open only on the outer surface 3, so that radiation from the cylinder segment in the direction of the arrow is possible.
  • the housing 1 Up and down, the housing 1 is closed by an upper and lower semicircular cover 4.5.
  • the back is formed by a flat rear wall 6.
  • FIG. 2 likewise shows a condenser or evaporator designed according to FIG. 1, but in an exploded view.
  • the connection ends 11, 12 of the semicircularly curved coolant tubes 2 with the radius R can be seen.
  • the connection ends 11, 12 of the semicircularly curved coolant tubes 2 with the radius R can be seen.
  • the connection ends 11, 12 of the semicircularly curved coolant tubes 2 with the radius R can be seen.
  • At the open terminal ends 11,12 back plates 9,10 are arranged or screwed. With the rear plates 9,10, the distances A of the coolant tubes 2 are fixed.
  • the pipe bends 13-18 can be seen. This results in a continuous connection between the individual coolant tubes.
  • fans 7 are arranged, which blow air from the outside into the housing.
  • the injected air can only escape through the ribbed coolant tubes 2 through the circular outer surface 3.
  • FIG. 3 shows an enlarged detail of the finned coolant tubes 2 in the region of a rear plate 9. Furthermore, an upper tube bend 15 can be seen, which connects the coolant tubes 2a, 2b arranged in the upper region.
  • the superposed coolant tubes 2b, 2c, 2d, 2e, 2f have common rib or lamellar surfaces. There is therefore a rib plane E which runs perpendicular to the plane formed by the radii R. Between the ribs a rib space for the passage of the cooled or the already cooled air is formed.
  • fans 8 can be seen, which are attached to the lower cover 5 and blow air into the semicircular interior.
  • 5 correspondingly shaped chamfers 5A, 5B are incorporated in the lower cover.
  • a perforated cylinder section is mounted, which forms an air-permeable rear wall 6.
  • Figures 4 and 5 show alternative embodiments of the condenser or evaporator according to the invention. There are both quadrant segments and full circle segments can be displayed, the coolant tubes and the covers are designed as a quarter circle or full circle.
  • connection ends which emerge in the quarter circle on the visible side of the condenser or evaporator according to the invention. But it can also be integrated by minor changes, the terminal ends in the backs or in the top cover.
  • plates 9, 10 of the cylinder segments are screwed to the rear wall (6, 6a, 6b) and the outer surface 3 for rear-side separation of the storage space.
  • the spaces between the tubes and the vertically extending ribs or lamellae are formed as a diffuser, wherein the distance of the lamellae in the circular plane from a minimum (A min ) on the side facing the center of the circle to a distance maximum (A max ) on the outer side of the housing increases.

Abstract

An air-cooled liquefier or evaporator consists of a fan-evaporator housing in which at least one fan is located in front of several bent and ribbed coolant tubes. The fan-evaporator housing (1) consists of one or more cylinder segments. The ribbed coolant tubes (2) form the circular outside surface (3) of the housing. The coolant tubes are semi-circular and are located at a distance one above the other, each with constant radius. The plane of the ribs runs vertically plane formed by the ribs and connects the coolant tubes together. The semicircular segments are provided with an upper and lower cover (4,5) which together form the housing with a back wall (6).

Description

Die Erfindung betrifft einen luftgekühlten Verflüssiger oder einen luftbeheizten Verdampfer, bestehend aus einem Lüfter-Verdampfergehäuse, in dem mindestens ein Gebläse vor mehreren gebogenen und gerippten Kühlmittelrohren angeordnet ist, die eine kreisbogenförmige Außenfläche des Gehäuses bilden und in Abständen A übereinander mit jeweils konstantem Radius R angeordnet sind.The invention relates to an air-cooled condenser or an air-heated evaporator, consisting of a fan-evaporator housing, in which at least one fan is arranged in front of a plurality of curved and ribbed coolant tubes, which form a circular arc-shaped outer surface of the housing and arranged at intervals A one above the other, each with a constant radius R. are.

Zur Kühlung eines isolierten Raumes (Kühlraum oder Bearbeitungsraum) werden unterschiedliche Bedingungen an einen Lüfter oder Verdampfer gestellt:

  • neben der Temperatur, der. Luftfeuchte (dem sogenannten Raumklima) und dem Temperaturgradienten δT spielen noch die Luftgeschwindigkeit bzw.die Luftzirkulation und die Geräuschentwicklung eine wesentliche Rolle. Weiterhin sind die Außenabmessungen des Lüfters oder Verdampfers und auch sein Energieverbrauch wichtig.
To cool an isolated room (cold room or processing room) different conditions are placed on a fan or evaporator:
  • in addition to the temperature, the. Air humidity (the so-called room climate) and the temperature gradient δT still play the air velocity and the air circulation and noise an essential role. Furthermore, the external dimensions of the fan or evaporator and its energy consumption are important.

Üblicherweise werden Verdampfer mit hohem Luftdurchsatz angeboten, die als Wärmetauscherblock mit Kupferrohren und Aluminiumlamellen gefertigt werden. Dabei werden die Kupferrohre als primäre Oberfläche und die Aluminiumlamellen als sekundäre Oberfläche bezeichnet.Usually, high-throughput evaporators are offered, which are manufactured as a heat exchanger block with copper pipes and aluminum fins. Here, the copper tubes are referred to as the primary surface and the aluminum fins as a secondary surface.

Im Oberbegriff des neuen Anspruchs 1 wird auf die US 2,454,654 (D1) Bezug genommen. Diese zeigt einen Verdampfer mit Rippenrohren, die durch horizontal angeordnete Abstandsbleche 24 voneinander getrennt sind. Die Abstandsbleche 24 sind erforderlich, damit das Kondensat in eine Sammelpfanne 62 am unteren Ende des Verdampfers abtropfen kann. Von dort wird es in eine Sammelleitung 64 übergeleitet und dann entsorgt.In the preamble of new claim 1 reference is made to US 2,454,654 (D1). This shows an evaporator with finned tubes, which are separated by horizontally arranged spacer plates 24 from each other. The spacer plates 24 are required so that the condensate in a collecting pan 62 at the bottom of the Evaporator can drain. From there it is transferred to a manifold 64 and then disposed of.

Da nach dem US-Patent zwischen den Rippenrohren Jeweils horizontale Abstandsbleche 24 angeordnet sind, müssen die Rippen - wie die Fig. 1 und 2 des US-Patents zeigen, ringförmig um jedes einzelne Verdampferrohr herumgeführt werden. Diese Anordnung ist technisch aufwendig und außerdem besteht wegen des kleinen Rippenabstandes Vereisungsgefahr. Untersuchungen haben femer gezeigt, dass bei einer großen Zahl von kleinen, einzeln beabstandeten Rippen eine hohe Geräuschentwicklung auftritt, so dass die Verwendung in Arbeitsräumen mit erheblichen Nachteilen verbunden ist.Since horizontal spacer plates 24 are arranged between the finned tubes according to the US patent, the fins must, as shown in FIGS. 1 and 2 of the US patent, be guided in a ring around each individual tube of the evaporator. This arrangement is technically complex and also exists because of the small rib spacing risk of icing. Studies have also shown that with a large number of small, individually spaced ribs, a high noise occurs, so that the use in work rooms is associated with considerable disadvantages.

Aufgabe der vorliegenden Erfindung ist es die Konstruktion von luftgekühlten Verflüssigern oder Verdampfern derart zu verbessern, dass bei minimalem Platzverbrauch eine optimale Luftverteilung unter niedriger Geräuschentwicklung erreicht wird. Gleichzeitig sollen Luftgeschwindigkeit und δT innerhalb weiter Grenzen einstellbar sein, wobei auch in der hohen Leistungsstufe noch ein relativ niedriger Energieverbrauch erreicht werden soll.Object of the present invention is to improve the design of air-cooled condensers or evaporators such that with minimal space consumption optimal air distribution is achieved with low noise. At the same time air speed and δT should be adjustable within wide limits, and even in the high power level still a relatively low energy consumption should be achieved.

Erfindungsgemäß wird diese Aufgabe durch die im Patentanspruch 1 angegebenen Merkmale gelöst. Vorteilhafterweise sind die Kühlmittelrohre halbkreisförmig auf der Außenfläche des kreisbogenförmigen Gehäuses angeordnet. Sie liegen in Abständen übereinander mit konstanten Radius wobei die Rippen senkrecht zu den Radien verlaufen und die Kühlmittelrohre mit größerem Lamellenabstand untereinander verbunden sind. Vorzugsweise beträgt der Lamellenabstand zwischen 6- und 10 mm, wobei der Zwischenraum zwischen den Rohren und den senkrecht verlaufenden Rippen oder Lamellen als Diffusor ausgebildet sein sollte.According to the invention, this object is achieved by the features specified in patent claim 1. Advantageously, the coolant tubes are arranged semicircular on the outer surface of the circular arc-shaped housing. They lie at intervals one above the other with a constant radius wherein the ribs are perpendicular to the radii and the coolant tubes are connected to each other with a larger fin spacing. Preferably, the fin spacing between 6 and 10 mm, wherein the space between the tubes and the vertical ribs or fins should be designed as a diffuser.

Bei einem Horizontalschnitt durch den erfindungsgemäßen Lüfter/Verdampfer ist der Abstand der Lamellen in der Kreisebene von einem Minimum Amin auf der dem Kreismittelpunkt zugewandten Seite auf einem Abstandsmaximum Amax an der äußeren Gehäuseseite ansteigend ausgebildet. Mittels geeigneter Vorrichtungen kann die Abstrahlrichtung und der Volumenstrom des luftgekühltem Verflüssigers oder Verdampfers über die Diffusoröffnungen zwischen den Lamellen beziehungsweise Rippen der Kühlmittelrohre einstellbar ausgeführt werden, wobei der Raum zwischen dem perforierten Zylinderabschnitt und den Innenkanten der verripten Kühlmittelrohre als Stauraum ausgebildet ist.In a horizontal section through the fan / evaporator according to the invention, the spacing of the lamellae in the circular plane from a minimum A min on the side facing the center of the circle on a distance maximum A max formed on the outer side of the housing increasing. By means of suitable devices, the emission direction and the volume flow of the air-cooled condenser or evaporator can be made adjustable via the diffuser openings between the fins or ribs of the coolant tubes, wherein the space between the perforated cylinder portion and the inner edges of the verripten coolant tubes is designed as storage space.

Bevorzugt werden Kreissegmente mit Segmentwinkeln α von 45°, 60°, 90°, 180° oder 360° eingesetzt. Damit ist eine optimale Nutzung des Kühlraumes möglich. Die Platzierung des erfindungsgemäßen Verflüssigers oder Verdampfers kann in einer Ecke, an der Wand oder in der Mitte des zu kühlenden Raumes erfolgen. Der größere Lamellenabstand ist wegen der Vermeidung von Vereisungen besonders günstig, wobei runde Lamellenpakete mit integralen Lamellen von bis zu vier Rohrreihen in der Tiefe hergestellt werden können.Preferably, circle segments are used with segment angles α of 45 °, 60 °, 90 °, 180 ° or 360 °. For an optimal use of the refrigerator is possible. The placement of the condenser or evaporator according to the invention can take place in a corner, on the wall or in the middle of the space to be cooled. The larger fin spacing is particularly low because of the avoidance of icing, with round plate packs can be made with integral lamellae of up to four rows of tubes in depth.

Im Folgenden wird die Erfindung anhand mehrerer Aussführungsbeispiele näher erläutert. Es zeigen:

Fig. 1
verschiedene Ansichten eines halbkreisförmigen Verflüssigers oder Verdampfers gemäß der vorliegenden Erfindung,
Fig. 2
halbkreisförmiger Verdampfer in Explosivdarstellung,
Fig. 3
Ausschnittsvergrößerung im Lamellenbereich eines halbkreisförmigen Verflüssigers oder Verdampfers,
Fig. 4
verschiedene Ansichten eines 90° Segmentes des erfindungsgemäßen Verflüssigers oder Verdampfers,
Fig. 5
verschiedene Ansichten eines ring- oder kreisförmigen Verflüssigers oder Verdampfers.
In the following, the invention will be explained in more detail with reference to several exemplary embodiments. Show it:
Fig. 1
various views of a semicircular condenser or evaporator according to the present invention,
Fig. 2
Semicircular evaporator in exploded view,
Fig. 3
Sectional enlargement in the lamella area of a semicircular condenser or evaporator,
Fig. 4
various views of a 90 ° segment of the condenser or evaporator according to the invention,
Fig. 5
different views of a ring or circular condenser or evaporator.

In Figur 1 ist ein erfindungsgemäßer luftgekühlter Verflüssiger oder Verdampfer dargestellt, bestehend aus einem Zylindersegment mit Halbkreisgrundfläche, das als Lüfter- oder Verdampfergehäuse 1 mit zylinderschalenförmig gebogenen und gerippten Kühlmittelrohren 2 ausgebildet ist. Das Gehäuse 1 ist nur an der Außenfläche 3 offen, so dass eine Abstrahlung aus dem Zylindersegment in Pfeilrichtung möglich ist.1 shows an inventive air-cooled condenser or evaporator is shown, consisting of a cylinder segment with semicircular base, which is designed as a fan or evaporator housing 1 with cylindrical shell-shaped curved and ribbed coolant tubes 2. The housing 1 is open only on the outer surface 3, so that radiation from the cylinder segment in the direction of the arrow is possible.

Nach oben und unten ist das Gehäuse 1 durch eine obere und untere halbkreisförmige Abdeckung 4,5 verschlossen. Die Rückseite wird durch eine ebene Rückwand 6 gebildet.Up and down, the housing 1 is closed by an upper and lower semicircular cover 4.5. The back is formed by a flat rear wall 6.

Figur 2 zeigt ebenfalls einen gemäß Fig. 1 ausgebildeten Verflüssiger oder Verdampfer, jedoch in Explosivdarstellung. Nach Demontage der oberen und unteren Abdeckung 4,5 sowie der Rückwand 6 sind die Anschlussenden 11,12 der halbkreisförmig gebogenen Kühlmittelrohre 2 mit dem Radius R zu erkennen. An den offenen Anschlussenden 11,12 sind rückseitige Platten 9,10 angeordnet bzw. angeschraubt. Mit den rückseitigen Platten 9,10 werden die Abstände A der Kühlmittelrohre 2 festgelegt. Außerdem sind die Rohrbögen 13-18 zu erkennen. Somit ergibt sich eine durchgehende Verbindung zwischen den einzelnen Kühlmittelrohren.FIG. 2 likewise shows a condenser or evaporator designed according to FIG. 1, but in an exploded view. After disassembly of the upper and lower cover 4, 5 and the rear wall 6, the connection ends 11, 12 of the semicircularly curved coolant tubes 2 with the radius R can be seen. At the open terminal ends 11,12 back plates 9,10 are arranged or screwed. With the rear plates 9,10, the distances A of the coolant tubes 2 are fixed. In addition, the pipe bends 13-18 can be seen. This results in a continuous connection between the individual coolant tubes.

An der unteren Abdeckung 5 sind Ventilatoren 7 angeordnet, die von außen Luft in das Gehäuse blasen. Die eingeblasenen Luft kann nur über die verrippten Kühlmittelrohre 2 durch die kreisförmige Außenfläche 3 entweichen.On the lower cover 5 fans 7 are arranged, which blow air from the outside into the housing. The injected air can only escape through the ribbed coolant tubes 2 through the circular outer surface 3.

Figur 3 zeigt eine Ausschnittsvergrößerung der verippten Kühmittelrohre 2 im Bereich einer rückseitigen Platte 9. Ferner ist ein oberer Rohrbogen 15 zu erkennen, der die im oberen Bereich angeordneten Kühlmittelrohre 2a, 2b verbindet.FIG. 3 shows an enlarged detail of the finned coolant tubes 2 in the region of a rear plate 9. Furthermore, an upper tube bend 15 can be seen, which connects the coolant tubes 2a, 2b arranged in the upper region.

Die übereinander angeordneten Kühlmittelrohre 2b, 2c, 2d, 2e, 2f weisen gemeinsame Rippen- oder Lamellenflächen auf. Es existiert daher eine Rippenebene E, die senkrecht zu der durch die Radien R gebildete Ebene verläuft. Zwischen den Rippen ist ein Rippenraum für den Durchtritt der zu kühlenden oder der bereits gekühlten Luft ausgebildet.The superposed coolant tubes 2b, 2c, 2d, 2e, 2f have common rib or lamellar surfaces. There is therefore a rib plane E which runs perpendicular to the plane formed by the radii R. Between the ribs a rib space for the passage of the cooled or the already cooled air is formed.

Weiterhin sind Ventilatoren 8 zu erkennen, die an der unteren Abdeckung 5 befestigt sind und die Luft in den halbkreisförmigen Innenraum blasen. Um einen festen Sitz der gerippten Kühlmittelrohre zu garantieren, sind in der unteren Abdeckung 5 entsprechend geformte Abkanntungen bzw. Vertiefungen 5A;5B eingearbeitet. Durch Formschluss mit dem Lamellenkörper der Kühlmittelrohre wird eine feste Verbindung geschaffen, die gleichzeitig auch geringe Spaltverluste aufweist. Im Abstand von den Innenkanten der verripten Kühlmittelrohre ist ein perforierter Zylinderabschnitt angebracht, der eine luftdurchlässige Rückwand 6 bildet.Furthermore, fans 8 can be seen, which are attached to the lower cover 5 and blow air into the semicircular interior. In order to guarantee a tight fit of the ribbed coolant tubes, 5 correspondingly shaped chamfers 5A, 5B are incorporated in the lower cover. By positive engagement with the fin body of the coolant tubes a firm connection is created, which also has low gap losses at the same time. At a distance from the inner edges of the verripten coolant tubes, a perforated cylinder section is mounted, which forms an air-permeable rear wall 6.

Die Figuren 4 und 5 zeigen alternative Ausführungsformen des erfindungsgemäßen Verflüssigers oder Verdampfers. Es sind sowohl Viertelkreissegmente als auch Vollkreissegmente darstellbar, wobei die Kühlmittelrohre und die Abdeckungen entsprechend als Viertelkreis oder im Vollkreis ausgebildet sind.Figures 4 and 5 show alternative embodiments of the condenser or evaporator according to the invention. There are both quadrant segments and full circle segments can be displayed, the coolant tubes and the covers are designed as a quarter circle or full circle.

Weitere Besonderheiten zeigen die Anschlussenden, die beim Viertelkreis auf der sichtbaren Seite des erfindungsgemäßen Verflüssigers oder Verdampfers austreten. Es lassen sich aber auch durch geringfügige Änderungen die Anschlussenden in die Rückseiten oder in die obere Abdeckung integrieren.Further special features show the connection ends, which emerge in the quarter circle on the visible side of the condenser or evaporator according to the invention. But it can also be integrated by minor changes, the terminal ends in the backs or in the top cover.

Vorzugsweise sind an die Rückwand (6, 6a, 6b) und die Außenfläche 3 zur rückseitigen Abtrennung des Stauraums Platten 9,10 der Zylindersegmente angeschraubt. Wie aus Fig. 3 ersichtlich, sind die Zwischenräume zwischen den Rohren und den senkrecht verlaufenden Rippen oder Lamellen als Diffusor ausgebildet, wobei der Abstand der Lamellen in der Kreisebene von einem Minimum (Amin) auf der dem Kreismittelpunkt zugewandten Seite auf ein Abstandsmaximum (Amax) an der äußeren Gehäuseseite ansteigt.
Durch Verwendung verschieden breiter Platten 9, 10 ist die Abstrahlrichtung und der Volumenstrom des luftgekühlten Verflüssigers oder Verdampfer über die Diffusoröffnung zwischen den Lamellen bzw. Rippen der Kühlmittelrohre einstellbar.Preferably, plates 9, 10 of the cylinder segments are screwed to the rear wall (6, 6a, 6b) and the outer surface 3 for rear-side separation of the storage space. As can be seen from FIG. 3, the spaces between the tubes and the vertically extending ribs or lamellae are formed as a diffuser, wherein the distance of the lamellae in the circular plane from a minimum (A min ) on the side facing the center of the circle to a distance maximum (A max ) on the outer side of the housing increases.
By using differently wide plates 9, 10, the emission direction and the volume flow of the air-cooled condenser or evaporator via the diffuser opening between the fins and ribs of the coolant tubes is adjustable.

Claims (11)

  1. An air-cooled liquefier or an air-heated vaporiser, consisting of a fan-vaporiser housing in which there is arranged at least one blower in front of a plurality of bent and ribbed cooling agent pipes which form a circular-arch-shaped outer face of the housing and are arranged at distances A one above the other each with a constant radius R,
    characterised in
    that the fan-vaporiser housing (1) consists of one or more cylinder segments and that the cooling agent pipes arranged one above the other comprise joint rib or lamella faces which form a rib plane E extending perpendicularly through the plane formed by the radii R and which connect the cooling agent pipes (2) arranged one above the other, wherein between the ribs there is formed a rib chamber in the form of a diffuser to allow the passage of the air to be cooled or already cooled.
  2. An air-cooled liquefier or an air-heated vaporiser according to claim 1,
    characterised in that the cylinder segments are provided in the form of annular segments, wherein at a distance from the inner edges of the ribbed cooling agent pipes (2), there is arranged a perforated cylinder portion in the form of a rear wall (6).
  3. An air-cooled liquefier or an air-heated vaporiser according to claim 1,
    characterised in
    that the cylinder segments are provided with an upper and lower cover (4, 5) which, together with the rear wall (6, 6a, 8b), form the housing.
  4. An air-cooled liquefier or an air-heated vaporiser according to any one of the preceding claims,
    characterised in
    that the spacing elements (19) are arranged between the rear wall (6, 6c, 8b) and the inner edges of the ribbed cooling agent pipes.
  5. An air-cooled liquefier or an air-heated vaporiser according to any one of the preceding claims,
    characterised in
    that one or more ventilators (7, 8) are arranged at the rear wall (6, 6a, 6b) or at the lower cover (5).
  6. An air-cooled liquefier or an air-heated vaporiser according to any one of the preceding claims,
    characterised in
    that the chamber between the perforated cylinder portion and the inner edges of the ribbed cooling agent pipes is used as a banking-up chamber.
  7. An air-cooled liquefier or an air-heated vaporiser according to any one of the preceding claims,
    characterised in
    that plates (9, 10) of the cylinder segments are bolted on to the rear wall (6, 6a, 6b) and on to the outer face (3) for separating the banking-up chamber at the rear.
  8. An air-cooled liquefier or an air-heated vaporiser according to any one of the preceding claims,
    characterised in
    that the plates (9, 10), on the one hand contain the attaching ends (11, 12) of the semi-circular cooling agent pipes and, and the other hand, pipe bends (13-18) which, on all sides, are enclosed by the upper and lower covers (4, 5) and by the cylinder segment of the fan housing.
  9. An air-cooled liquefier or an air-heated vaporiser according to any one of the preceding claims,
    characterised in
    that the perpendicularly extending ribs between the cooling agent pipes serve as spacing elements for the upper and lower cover.
  10. An air-cooled liquefier or an air-heated vaporiser according to any one of the preceding claims,
    characterised in
    that the distance between the lamellae in the circular plane increases from a minimum (Amin)at the end facing the centre of the circle to a distance maximum (Amax) at the outer housing end.
  11. An air-cooled liquefier or an air-heated vaporiser according to any one of the preceding claims,
    characterised in
    that the direction of radiation and the volume flow of the air-cooled liquefier or of the air-heated vaporiser can be set by the diffuser aperture between the lamellae and the ribs of the cooling agent pipes.
EP02009647A 2001-05-12 2002-04-27 Air-cooled condenser or air-heated evaporator Expired - Lifetime EP1256770B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20107972U 2001-05-12
DE20107972U DE20107972U1 (en) 2001-05-12 2001-05-12 Air-cooled condenser or evaporator

Publications (2)

Publication Number Publication Date
EP1256770A1 EP1256770A1 (en) 2002-11-13
EP1256770B1 true EP1256770B1 (en) 2006-03-01

Family

ID=7956770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02009647A Expired - Lifetime EP1256770B1 (en) 2001-05-12 2002-04-27 Air-cooled condenser or air-heated evaporator

Country Status (4)

Country Link
EP (1) EP1256770B1 (en)
AT (1) ATE319063T1 (en)
DE (2) DE20107972U1 (en)
ES (1) ES2260349T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013005644U1 (en) 2013-06-24 2014-09-25 Dometic Sweden Ab Coolant condenser unit for refrigerated goods transport

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10205652B4 (en) * 2002-02-12 2005-05-19 Rittal Gmbh & Co. Kg Roof-mounted cooling unit for a control cabinet
US7247959B2 (en) 2002-10-11 2007-07-24 Siemens Power Generation, Inc. Dynamoelectric machine with arcuate heat exchanger and related methods
DE102008019894B4 (en) * 2008-04-21 2010-09-30 Torsten Enders Recooler with circularly curved finned heat exchanger
DE102012005248A1 (en) * 2011-05-10 2013-05-16 Bundy Refrigeration Gmbh Multichannel Verdampfersytem
CN202188613U (en) * 2011-07-05 2012-04-11 海信科龙电器股份有限公司 Evaporator structure of air conditioning indoor unit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE357539C (en) * 1922-08-28 Justin Perchot Radiator for explosion engines
US2454654A (en) * 1947-01-22 1948-11-23 Gen Motors Corp Air cooling apparatus
JPS5919883Y2 (en) * 1980-03-19 1984-06-08 日立建機株式会社 annular heat exchanger
US4502291A (en) * 1982-12-16 1985-03-05 Carrier Corporation Combination fan motor and orifice support assembly
US4603559A (en) * 1985-07-08 1986-08-05 Wu Ming W Water-cooled air conditioner
US4967830A (en) * 1988-05-02 1990-11-06 Eubank Manufacturing Enterprises, Inc. Arcuate tubular evaporator heat exchanger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013005644U1 (en) 2013-06-24 2014-09-25 Dometic Sweden Ab Coolant condenser unit for refrigerated goods transport
EP2818346A2 (en) 2013-06-24 2014-12-31 Dometic Sweden AB Coolant liquefier unit for the transport of chilled goods

Also Published As

Publication number Publication date
EP1256770A1 (en) 2002-11-13
DE20107972U1 (en) 2001-07-26
ATE319063T1 (en) 2006-03-15
DE50205899D1 (en) 2006-04-27
ES2260349T3 (en) 2006-11-01

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