WO1980001468A1 - Element of a dryer for compressed air - Google Patents

Element of a dryer for compressed air Download PDF

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Publication number
WO1980001468A1
WO1980001468A1 PCT/CH1980/000001 CH8000001W WO8001468A1 WO 1980001468 A1 WO1980001468 A1 WO 1980001468A1 CH 8000001 W CH8000001 W CH 8000001W WO 8001468 A1 WO8001468 A1 WO 8001468A1
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WO
WIPO (PCT)
Prior art keywords
air
heat exchanger
freon
element according
heat exchangers
Prior art date
Application number
PCT/CH1980/000001
Other languages
German (de)
French (fr)
Inventor
M Geissmann
Original Assignee
Heatrans Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Heatrans Ag filed Critical Heatrans Ag
Priority to AT900380A priority Critical patent/AT373385B/en
Publication of WO1980001468A1 publication Critical patent/WO1980001468A1/en
Priority to DK387880A priority patent/DK387880A/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
    • 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
    • F28D7/02—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 helically coiled
    • F28D7/022—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 helically coiled the conduits of two or more media in heat-exchange relationship being helically coiled, the coils having a cylindrical configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/265—Drying gases or vapours by refrigeration (condensation)
    • 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
    • F28D7/0041—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 for only one medium being tubes having parts touching each other or tubes assembled in panel form

Definitions

  • the invention relates to a refrigeration dryer element for compressed air, each with at least one air-air heat exchanger and one air-freon heat exchanger, the heat exchangers having bent, nested tubes.
  • Refrigeration dryers are increasingly used in connection with compressed air networks to remove the moisture from the air and thus complicated compressed air systems, e.g. Control and regulation systems to be able to operate trouble-free.
  • the air compressed by a compressor is first pre-cooled and then fed at a temperature of approximately 30 ° C. to an air-air heat exchanger in which the air is cooled to approximately 12 ° C.
  • the further cooling of the air takes place in an air-freon heat exchanger, in which a final temperature of the air of about 2 C is reached.
  • the precipitated moisture is then separated in a separator connected to it.
  • the moisture-free air enters the air-air heat exchanger and is used to cool the compressed air
  • a known heat exchanger unit consists of an outer tube with an inner tube arranged coaxially therein, which is bent into a number of turns. To a small height, e.g. of two pipe diameters, it is necessary to arrange the heat exchanger in spirals. However, the production of heat exchanger units with spirally laid turns is difficult in terms of manufacturing technology and is therefore more complex than units with helically arranged pipe turns. For a given heat exchange unit output for the heat exchanger unit, however, the desired small overall height cannot be maintained for a given turn diameter in the case of a helical arrangement of the pipe turns. Although it is known to improve the heat exchange performance of two coaxial tubes by means of internals, this makes the heat exchanger unit complicated and expensive to manufacture.
  • the invention is therefore based on the object of designing a refrigeration dryer of the type described at the outset such that, with the simplest construction of the heat exchanger unit, a helical arrangement of the pipe windings is possible while observing the heat exchange output, the pressure loss, the height and the winding diameter is.
  • the air-air heat exchanger has an outer tube and at least three inner tubes and the air-freon heat exchanger has an outer tube and a coaxial inner have a tube with at least three inner tubes arranged in the coaxial inner tube with mutual line contact.
  • 1 is a side view of two superimposed heat exchangers
  • FIG. 2 is a plan view of the heat exchanger according to FIG. 1,
  • FIG. 6 is a plan view in an enlarged view of the tube ends of an air-freon heat exchanger.
  • the heat exchangers shown in FIGS. 1 and 2 are composed of an air-air heat exchanger 1 and an air-freon heat exchanger 2. Both heat exchangers 1, 2 have a turn length of one and a half turns. This ensures that when heat exchangers are stacked on top of each other, an intermediate space Z is created, through which the Interior space formed by the tube turns is accessible, which is advantageous in the manufacture of a refrigeration dryer.
  • the air-air heat exchanger * is composed of an outer tube 3 and four inner tubes 4, but a different number of inner tubes 4 can also be used.
  • the cooling air flows through the inner tubes 4, for example, and the air to be cooled flows in the interior between the outer tube 3 and the inner tubes 4.
  • the air-freon heat exchanger has, see FIG. 4, an outer tube 3 with a coaxial inner tube 5.
  • Four inner tubes 4 are arranged in the interior of the coaxial inner tube 5. It is essential here that the inner tubes 4 are in line with each other and with the inner wall of the coaxial inner tube 13. For example, the air to be cooled flows through the coaxial inner tube 5 and the inner tubes 4, while the freon flows in the annular space between the outer tube 3 and the coaxial inner tube 5.
  • the two heat exchangers 1, 2 have straight connectors 6 at their ends of the winches, see FIG. 2. With these, the heat exchangers 1, 2 are connected to collectors. In Fig. 2 manifolds 8, 9 are schematically shown for the cooling air and the air to be cooled.
  • a conical connecting support with a connecting pipe 12 connects to the connector 6, while the coaxial inner pipe 5 is connected directly to the collecting pipe 9. Since the one medium flows both in the inner tubes 4 and in the coaxial inner tube 5, only the coaxial inner tube 5 needs to be connected to the collecting tube 9; an undesirable risky and later inaccessible solder joint in the. Freon area. avoided.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Drying Of Gases (AREA)

Abstract

An air-air heat exchanger (1) and an air-freon heat exchanger (2) form an element of a dryer for compressed air, both exchangers (1, 2) have the configuration of a winding; the length thereof is of one spiral and a half. The air-air heat exchanger (1) comprises an outer pipe (3) and at least three inner pipes (4), whereas the air-freon exchanger (2) comprises an outer pipe (3) and a coaxial inner pipe (5) inside which are arranged pipes (4) in contact between each other. Both exchangers are provided with a sleeve (6); the manifolds (8, 9) are connected approximately perpendicularly to the sleeve (6).

Description

- 1 - - 1 -
Kältetrockner-Element für komprimierte LuftCold dryer element for compressed air
Die Erfindung betrifft ein Kältetrockner-Element für komprimierte Luft mit mindestens je einem Luft-Luft- Wärmeaustauscher und einem Luft-Freon-Wärmeaustauscher, wobei die Wärmeaustauscher gebogene , ineinanderliegende Rohre aufweisen.The invention relates to a refrigeration dryer element for compressed air, each with at least one air-air heat exchanger and one air-freon heat exchanger, the heat exchangers having bent, nested tubes.
Kältetrockner werden zunehmend in Verbindung mit Druck- luftnetzen eingesetzt, um die Feuchtigkeit aus der Luft zu entfernen und damit komplizierte Druckluftsysteme, z.B. Steuer- und Regelsysteme, störungsfrei betreiben zu können. Bei bekannten Kältetrockner-Anlagen wird die von einem Verdichter verdichtete Luft zunächst vorge¬ kühlt und dann mit einer Temperatur von etwa 30 C einem Luft-Luft-rWärmeaustauscher zugeführt, in welchem die Luft auf ca. 12 C gekühlt wird. Die weitere Abkühlung der Luft erfolgt in einem Luft-Freon-Wärmeaustauscher, in welchem eine Endtemperatur der Luft von etwa 2 C erreicht wird. In einem daran anschliessenden Abscheider wird nun die ausgefällte Feuchtigkeit abgeschieden. Die feuchtigkeitsfreie Luft gelangt in den Luft-Luft-Wärme- austauscher und dient zur Kühlung der komprimiertenRefrigeration dryers are increasingly used in connection with compressed air networks to remove the moisture from the air and thus complicated compressed air systems, e.g. Control and regulation systems to be able to operate trouble-free. In known refrigerant dryer systems, the air compressed by a compressor is first pre-cooled and then fed at a temperature of approximately 30 ° C. to an air-air heat exchanger in which the air is cooled to approximately 12 ° C. The further cooling of the air takes place in an air-freon heat exchanger, in which a final temperature of the air of about 2 C is reached. The precipitated moisture is then separated in a separator connected to it. The moisture-free air enters the air-air heat exchanger and is used to cool the compressed air
Luft. Die mit 2 C in diesen Wärmeaustauscher eintretende Luft erwärmt sich hierbei auf etwa 22 C und wird anschliessend den Verbrauchern zugeführt. Es hat sich nun als zweckmässig erwiesen, für die beiden Wärmeaus- tauscher Standard-Einheiten zu verwenden und eine der Grosse der Druckluftanlage entsprechende Anzahl dieser Einheiten zusammenzufassen.Air. The air entering this heat exchanger at 2 C warms up to about 22 C and is then supplied to the consumers. It has now proven expedient to use standard units for the two heat exchangers and one of the To summarize the size of the compressed air system corresponding number of these units.
Eine bekannte Wärmeaustauscher-Einheit besteht aus einem Aussenrohr mit einem darin koaxial angeordneten Innenrohr, das- zu einer Anzahl Windungen gebogen wird. Um eine kleine Bauhöhe, z.B. von zwei Rohrdurchmessern, einhalten zu können, ist es erforderlich, den Wärmeaus¬ tauscher in Spiralen anzuordnen. Die Herstellung von Wärmeaustauscher-Einheiten mit spiralförmig verlegten Windungen ist jedoch fabrikationstechnisch schwierig und deshalb aufwendiger als Einheiten mit schrauben¬ förmig angeordneten Rohrwindungen. Bei einer gegebenen Wärmeaustausch-Einheitsleistung für die Wärmeaustauscher- Einheit kann jedoch bei einer schraubenförmigen Anord- nung der Rohrwindungen die gewünschte kleine Bauhöhe bei gegebenem Windungsdurchmesser nicht eingehalten werden. Es ist zwar bekannt, die Wärmeaustausch-Leistung zweier koaxialer Rohre durch Einbauten zu verbessern, jedoch wird dadurch die Wärmeaustauscher-Einheit in ihrer Herstellung kompliziert und aufwendig.A known heat exchanger unit consists of an outer tube with an inner tube arranged coaxially therein, which is bent into a number of turns. To a small height, e.g. of two pipe diameters, it is necessary to arrange the heat exchanger in spirals. However, the production of heat exchanger units with spirally laid turns is difficult in terms of manufacturing technology and is therefore more complex than units with helically arranged pipe turns. For a given heat exchange unit output for the heat exchanger unit, however, the desired small overall height cannot be maintained for a given turn diameter in the case of a helical arrangement of the pipe turns. Although it is known to improve the heat exchange performance of two coaxial tubes by means of internals, this makes the heat exchanger unit complicated and expensive to manufacture.
Der Erfindung liegt somit die Aufgabe zugrunde, einen Kältetrockner der eingangs beschriebenen Art so auszu¬ gestalten, dass bei einfachstem Aufbau der Wärmeaus¬ tauscher-Einheit eine schraubenförmige Anordnung der Rohrwindungen unter Einhaltung der Wärmeaustausch- Leistung, des Druckverlustes, der Bauhöhe und des Windungsdurchmessers möglich ist.The invention is therefore based on the object of designing a refrigeration dryer of the type described at the outset such that, with the simplest construction of the heat exchanger unit, a helical arrangement of the pipe windings is possible while observing the heat exchange output, the pressure loss, the height and the winding diameter is.
Diese Aufgabe wird gemäss der Erfindung dadurch gelöst, dass die Luf -Luft-Wärmeaustauscher ein Aussenrohr und mindestens drei Innenrohre und der Luft-Freon- Wärmeaustauscher ein Aussenrohr und ein koaxiales Innen- röhr mit mindestens drei im koaxialen Innenrohr mit gegenseitiger Linienberührung angeordneten Innenrohren aufweisen.This object is achieved according to the invention in that the air-air heat exchanger has an outer tube and at least three inner tubes and the air-freon heat exchanger has an outer tube and a coaxial inner have a tube with at least three inner tubes arranged in the coaxial inner tube with mutual line contact.
Die Erfindung- ist in der Zeichnung beispielsweise dargestellt und nachfolgend beschrieben. Es zeigen:The invention is shown in the drawing, for example, and described below. Show it:
Fig. 1 eine Seitenansicht zweier übereinander- liegender Wärmeaustauscher,1 is a side view of two superimposed heat exchangers,
Fig. 2 eine Draufsicht auf die Wärmeaustauscher nach Fig. 1,2 is a plan view of the heat exchanger according to FIG. 1,
Fig. 3 einen Querschnitt eines Luft-Luft-Wärmeaus- tauschers,3 shows a cross section of an air-air heat exchanger,
Fig. 4 einen Querschnitt eines Luft-Freon-Wärme- austauschers,4 shows a cross section of an air freon heat exchanger,
Fig. 5 eine Draufsicht in vergrösserter Dar- Stellung der Rohrenden eines Luft-Luft-5 is a plan view in an enlarged view of the tube ends of an air-air
Wärmeaustauschers undHeat exchanger and
Fig. 6 eine Draufsicht in vergrösserter Dar¬ stellung der Rohrenden eines Luft-Freon- Wärmeaustauschers.6 is a plan view in an enlarged view of the tube ends of an air-freon heat exchanger.
Die in Fig. 1 und 2 dargestellten -Wärmeaustauscher setzen sich aus einem Luft-Luft-Wärmeaustauscher 1 und einem Luft-Freon-Wärmeaustauscher 2 zusammen. Beide Wärmeaustauscher 1, 2 weisen eine Windungslänge von eineinhalb Windungen auf. Dadurch wird erreicht, dass bei Aufeinanderstapeln von Wärmeaustauschern jeweils ein Zwischenraum Z entsteht, durch den der von den Rohrwindungen gebildete Innenraum zugänglich ist, was bei der Herstellung eines Kältetrockners vor¬ teilhaft ist.The heat exchangers shown in FIGS. 1 and 2 are composed of an air-air heat exchanger 1 and an air-freon heat exchanger 2. Both heat exchangers 1, 2 have a turn length of one and a half turns. This ensures that when heat exchangers are stacked on top of each other, an intermediate space Z is created, through which the Interior space formed by the tube turns is accessible, which is advantageous in the manufacture of a refrigeration dryer.
Der Luft-Luft-Wärmeaustauscher* 1 setzt sich, siehe Fig. 3, aus einem Aussenrohr 3 und vier Innenrohren 4 zusammen, jedoch kann auch eine andere Zahl von Innen¬ rohren 4 verwendet werden. Durch die Innenrohre 4 fliesst beispielsweise die Kühlluft und im Innenraum zwischen dem Aussenrohr 3 und den Innenrohren 4 die zu kühlende Luft.The air-air heat exchanger * 1, see FIG. 3, is composed of an outer tube 3 and four inner tubes 4, but a different number of inner tubes 4 can also be used. The cooling air flows through the inner tubes 4, for example, and the air to be cooled flows in the interior between the outer tube 3 and the inner tubes 4.
Der Lu t-Freon-Wärmeaustauscher weist, siehe Fig. 4, ein Aussenrohr 3 mit einem koaxialen Innenrohr 5 auf. Im Innenraum des koaxialen Innenrohrs 5 sind vier Innen¬ rohre 4 angeordnet. Wesentlich ist hierbei, dass die Innenrohre 4 unter sich und mit der Innenwandung des koaxialen Innenrohrs in gegenseitiger Linienberührung 13 stehen. Durch das koaxiale Innenrohr 5 und die Innen¬ rohre 4 fliesst beispielsweise die zu kühlende Luft, während das Freon im Ringraum zwischen dem Aussenrohr 3 und dem koaxialen Innenrohr 5 fliesst.The air-freon heat exchanger has, see FIG. 4, an outer tube 3 with a coaxial inner tube 5. Four inner tubes 4 are arranged in the interior of the coaxial inner tube 5. It is essential here that the inner tubes 4 are in line with each other and with the inner wall of the coaxial inner tube 13. For example, the air to be cooled flows through the coaxial inner tube 5 and the inner tubes 4, while the freon flows in the annular space between the outer tube 3 and the coaxial inner tube 5.
Die beiden Wärmeaustauscher 1, 2 weisen an ihren Win¬ dungsenden, siehe Fig. 2, gerade Stutzen 6 auf. Mit diesen werden die Wärmeaustauscher 1, 2 an Kollektoren angeschlossen. In Fig. 2 sind schematisch Sammelrohre 8, 9 für die Kühlluft und die zu kühlende Luft dargestellt.The two heat exchangers 1, 2 have straight connectors 6 at their ends of the winches, see FIG. 2. With these, the heat exchangers 1, 2 are connected to collectors. In Fig. 2 manifolds 8, 9 are schematically shown for the cooling air and the air to be cooled.
In Fig. 5 und 6 sind die Anschlüsse der Wärmeaustauscher 1, 2 vergrössert dargestellt. Der Stutzen 6 des Aussen- rohrs 3 mündet im gestrichelt dargestellten Sammelrohr 8 , während die Innenrohre 4 in einem Verbindungsstutzen 10 zusammengefasst v/erden, der im gestrichelt dargestellten Sammelrohr 9 mündet.5 and 6, the connections of the heat exchangers 1, 2 are shown enlarged. The connector 6 of the outer tube 3 opens into the manifold 8 shown in dashed lines, while the inner tubes 4 are combined in a connecting piece 10, the one shown in dashed lines Manifold 9 opens.
Fig. 6 stellt den Anschluss des Luft-Freon-Wärme- austauschers dar. Am Stutzen 6 schliesst ein konischer Verbindungsstützen mit einem Anschlussrohr 12 an, während das koaxiale Innenrohr 5 direkt mit dem Sammel¬ rohr 9 verbunden ist. Da das eine Medium sowohl in den Innenrohren 4 als auch im koaxialen Innenrohr 5 fliesst, braucht nur das koaxiale Innenrohr 5 mit dem Sammel¬ rohr 9 verbunden zu werden; dadurch wird eine uner- wünschte risikoträchtige und später unzugängliche Löt¬ stelle im. Freonbereich. vermieden.6 shows the connection of the air-freon heat exchanger. A conical connecting support with a connecting pipe 12 connects to the connector 6, while the coaxial inner pipe 5 is connected directly to the collecting pipe 9. Since the one medium flows both in the inner tubes 4 and in the coaxial inner tube 5, only the coaxial inner tube 5 needs to be connected to the collecting tube 9; an undesirable risky and later inaccessible solder joint in the. Freon area. avoided.
Mit den beschriebenen Wärmeaustauscher-Einheiten 1, 2, die mit nur eineinhalb Windungen ausgeführt werden, erreicht man eine ins Gewicht fallende Materialerspar- nis trotz der Verwendung der Innenrohre 4. Auch ist für die Einhaltung der gewünschten Wärmeaustausch-Einheits¬ leistung kein grösseres Druckgefälle erforderlich als bei vergleichbaren bekannten Einheiten.With the heat exchanger units 1, 2 described, which are designed with only one and a half turns, significant material savings are achieved despite the use of the inner tubes 4. Also, a greater pressure drop is not required to maintain the desired heat exchange unit output than comparable known units.
Der Einfachheit halber wurde für das eine Medium Luft genannt, doch kann im Rahmen der Erfindung auch ein anderes Gas verwendet v/erden. For the sake of simplicity, air has been mentioned for one medium, but another gas can also be used within the scope of the invention.

Claims

Patentansprüche Claims
1. Kältetrockner-Element für komprimierte Luft mit mindestens je einem Luft-Luft-Wärmeaustauscher und einem Luf -Freon-Wärmeaustauscher, wobei die Wärme¬ austauscher gebogene, ineinanderliegende Rohre auf- weisen, dadurch gekennzeichnet, dass der Luft-Luft- Wärmeaustauscher (1) ein Aussenrohr (3) und mindestens drei Innenrohre (4) und der Luft-Freon-Wärmeaus¬ tauscher (2) ein Aussenrohr (3) und ein koaxiales Innenrohr (5) mit mindestens drei im koaxialen Innen- röhr mit gegenseitiger Linienberührung (13) angeord¬ neten Innenrohren (4) aufweisen.1. refrigeration dryer element for compressed air, each with at least one air-air heat exchanger and one air-freon heat exchanger, the heat exchangers having curved, nested tubes, characterized in that the air-air heat exchanger (1 ) an outer tube (3) and at least three inner tubes (4) and the air-freon heat exchanger (2) an outer tube (3) and a coaxial inner tube (5) with at least three in the coaxial inner tube with mutual line contact (13 ) have arranged inner tubes (4).
2. Element nach Anspruch 1, dadurch gekennzeichnet, dass der Luft-Luft-Wärmeaustauscher (1) und der Luft- Freon-Wärmeaustauscher (2) gleiche Windungslänge auf- weisen.2. Element according to claim 1, characterized in that the air-air heat exchanger (1) and the air-freon heat exchanger (2) have the same winding length.
3. Element nach Anspruch 2, dadurch gekennzeichnet, dass die Windungslänge der Wärmeaustauscher (1, 2) eineinhalb Windungen beträgt.3. Element according to claim 2, characterized in that the winding length of the heat exchanger (1, 2) is one and a half turns.
4. Element nach Anspruch 1, dadurch gekennzeichnet, dass die Wärmeaustauscher (1, 2) übereinanderliegen, wobei alle Lu t-Luft-Wärmeaustauscher im oberen Bereich benachbart und alle Freon-Luft-Wärmeaustauscher im unteren Bereich benachbart angeordnet sind.4. Element according to claim 1, characterized in that the heat exchangers (1, 2) lie one above the other, with all air-air heat exchangers adjacent in the upper region and all freon-air heat exchangers in the lower region adjacent.
5. Element nach Anspruch 1, dadurch gekennzeichnet, dass die Wärmeaustauscher (1, 2) gerade Stutzen (6) aufweisen, die mit annähernd senkrecht zu den Stutzen verlaufenden nebeneinanderliegenden Sammelrohren (8, 9) verbunden sind.5. Element according to claim 1, characterized in that the heat exchangers (1, 2) have straight connecting pieces (6) which are connected to mutually perpendicular collecting pipes (8, 9) which run approximately perpendicular to the connecting pieces.
-^ 3 E- ^ 3 E
OlvϊPOlvϊP
V/IFV / IF
& ^ - & ^ -
6. Element nach Anspruch 5, dadurch gekennzeichnet, dass die Innenrohre (4) des Wärmeaustauschers (1) , vor¬ zugsweise durch einen Verbindungsstutzen (10) , und das koaxiale Innenrohr (5) mit dem vom Stutzen (6) ent- fernteren Sammelrohr (9) verbunden sind. 6. Element according to claim 5, characterized in that the inner tubes (4) of the heat exchanger (1), preferably by a connecting piece (10), and the coaxial inner tube (5) with the header pipe (6) further away (9) are connected.
PCT/CH1980/000001 1979-01-12 1980-01-07 Element of a dryer for compressed air WO1980001468A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT900380A AT373385B (en) 1979-01-12 1980-01-07 REFRIGERATION DRYER ELEMENT FOR COMPRESSED AIR
DK387880A DK387880A (en) 1979-01-12 1980-09-11 REFRIGERATOR ELEMENT FOR COMPRESSED AIR

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH32379A CH635517A5 (en) 1979-01-12 1979-01-12 REFRIGERATION DRYER FOR COMPRESSED AIR.
CH323/79 1979-01-12

Publications (1)

Publication Number Publication Date
WO1980001468A1 true WO1980001468A1 (en) 1980-07-24

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BE (1) BE881123A (en)
CH (1) CH635517A5 (en)
DE (1) DE3028621D2 (en)
FR (1) FR2446459A1 (en)
GB (1) GB2058328B (en)
IT (1) IT1129951B (en)
NL (1) NL8020001A (en)
SE (1) SE8006234L (en)
WO (1) WO1980001468A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982003270A1 (en) * 1981-03-20 1982-09-30 Akerman Gert Ake Elof Heat exchanger
EP0344351A1 (en) * 1988-06-03 1989-12-06 VIA Gesellschaft für Verfahrenstechnik mbH Gas-refrigerant heat exchanger, especially for compressed-air dryers
WO2005078369A1 (en) * 2004-02-18 2005-08-25 Renewability Energy Inc. Helical coil-on-tube heat exchanger

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR410920A (en) * 1909-12-29 1910-06-02 Gotthold Hildebrandt Piping for heat exchangers
US2651508A (en) * 1949-11-04 1953-09-08 William M Bready Heat exchange apparatus for liquids containing solids
US3417547A (en) * 1966-12-07 1968-12-24 Gen Erie Corp Method for drying compressed air
US3722583A (en) * 1971-02-22 1973-03-27 Arrow Pneumatics Inc Refrigerated air dryer
CH589467A5 (en) * 1973-10-09 1977-07-15 Droogtech Refrigeration drier of compressed gas - using concentric helically coiled heat exchanger and evaporator heat exchange tubes
FR2344804A1 (en) * 1976-03-17 1977-10-14 Fimec Household ventilation system heat recuperator - has concentric tubes forming meander paths for hot stale air and cold fresh air
FR2348456A1 (en) * 1976-04-13 1977-11-10 Lipets Adolf Heat exchanger containing sleeved tube bundles - has inside of tubes and outside of sleeves swept by same fluid
DE2654253A1 (en) * 1976-11-30 1978-06-08 Via Gmbh Compressed air drying by refrigeration - having extended surfaces with extended meandering metal sheet on tube surfaces

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR410920A (en) * 1909-12-29 1910-06-02 Gotthold Hildebrandt Piping for heat exchangers
US2651508A (en) * 1949-11-04 1953-09-08 William M Bready Heat exchange apparatus for liquids containing solids
US3417547A (en) * 1966-12-07 1968-12-24 Gen Erie Corp Method for drying compressed air
US3722583A (en) * 1971-02-22 1973-03-27 Arrow Pneumatics Inc Refrigerated air dryer
CH589467A5 (en) * 1973-10-09 1977-07-15 Droogtech Refrigeration drier of compressed gas - using concentric helically coiled heat exchanger and evaporator heat exchange tubes
FR2344804A1 (en) * 1976-03-17 1977-10-14 Fimec Household ventilation system heat recuperator - has concentric tubes forming meander paths for hot stale air and cold fresh air
FR2348456A1 (en) * 1976-04-13 1977-11-10 Lipets Adolf Heat exchanger containing sleeved tube bundles - has inside of tubes and outside of sleeves swept by same fluid
DE2654253A1 (en) * 1976-11-30 1978-06-08 Via Gmbh Compressed air drying by refrigeration - having extended surfaces with extended meandering metal sheet on tube surfaces

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982003270A1 (en) * 1981-03-20 1982-09-30 Akerman Gert Ake Elof Heat exchanger
EP0344351A1 (en) * 1988-06-03 1989-12-06 VIA Gesellschaft für Verfahrenstechnik mbH Gas-refrigerant heat exchanger, especially for compressed-air dryers
WO2005078369A1 (en) * 2004-02-18 2005-08-25 Renewability Energy Inc. Helical coil-on-tube heat exchanger
US7322404B2 (en) 2004-02-18 2008-01-29 Renewability Energy Inc. Helical coil-on-tube heat exchanger
US8251133B2 (en) 2004-02-18 2012-08-28 Renewability Energy Inc. Helical coil-on-tube heat exchanger

Also Published As

Publication number Publication date
SE8006234L (en) 1980-09-08
FR2446459A1 (en) 1980-08-08
GB2058328B (en) 1983-04-20
FR2446459B3 (en) 1981-10-16
DE3028621D2 (en) 1982-02-11
NL8020001A (en) 1980-11-28
IT8019102A0 (en) 1980-01-09
BE881123A (en) 1980-05-02
CH635517A5 (en) 1983-04-15
IT1129951B (en) 1986-06-11
GB2058328A (en) 1981-04-08

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