DE1057625B - Air cooler - Google Patents
Air coolerInfo
- Publication number
- DE1057625B DE1057625B DEK18739A DEK0018739A DE1057625B DE 1057625 B DE1057625 B DE 1057625B DE K18739 A DEK18739 A DE K18739A DE K0018739 A DEK0018739 A DE K0018739A DE 1057625 B DE1057625 B DE 1057625B
- Authority
- DE
- Germany
- Prior art keywords
- heating
- air cooler
- pipes
- rows
- cooling
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
Luftkühler Bei der Abkühlung feuchter Luft unter den Gefrierpunkt bildet sich an der Kühlfläche Reif bzw. Eis, was zur Folge hat, daß die Kühlleistung bei allmählichem Ansteigen des Luftwiderstandes immer mehr absinkt. Die sich daraus ergebende Notwendigkeit, den Kühler zeitweise abzutauen, hat zu Sonderausführungen geführt, von denen im wesentlichen folgende bekannt und gebräuchlich sind: a) Statt eines Kühlers werden zwei luftseitig parallel geschaltete Kühler in die Luftleitung eingebaut. Bei Vereisung des einen Kühlers wird der Luftstrom durch Umstellen von Klappen über den anderen Kühler geleitet, während der vereiste Kühler abgetaut wird. Diese Ausführung ist wegen der doppelten Kühler teuer.Air cooler When cooling moist air below freezing point Frost or ice forms on the cooling surface, which has the consequence that the cooling capacity is reduced with a gradual increase in air resistance, it decreases more and more. The result of it The necessity to defrost the cooler temporarily has led to special designs out, of which the following are essentially known and in use: a) Instead of a cooler, two coolers connected in parallel on the air side are placed in the air line built-in. If one of the coolers is iced up, the air flow is reduced by switching Flaps passed over the other cooler while the iced cooler is being defrosted. This design is expensive because of the double cooler.
h) Der Luftkühler wird bei Vereisung mittels eines elektrischen Heizkörpers aufgetaut. Auch eine elektrische Anlage bedingt verhältnismäßig hohe Anlage- und Betriebskosten.h) The air cooler is activated by means of an electric heater when icing up thawed. An electrical system also requires relatively high system and Operating cost.
c) Dem Luftkühler wird ein mit Dampf oder Heißwasser betriebener Lufterhitzer vorgeschaltet. Diese Ausführung verursacht im allgemeinen die geringsten Anlage- und Betriebskosten.c) The air cooler is an air heater operated with steam or hot water upstream. This design generally causes the least amount of system and operating costs.
d) Der Luftkühler besteht aus parallelen Schlangen von Kühlrohren, zwischen denen parallele Schlangen von mit einem Heizmittel beaufschlagten Heizrohren angeordnet sind, wobei beide Rohrsysteme gemeinsame Lamellen besitzen. Bei dieser Vorrichtung ist ein getrennter Ausbau der beiden Rohrsvsteme wegen der gemeinsamen Lamellen nicht möglich.d) The air cooler consists of parallel coils of cooling tubes, between which parallel lines of heating pipes acted upon by a heating medium are arranged, both pipe systems have common fins. At this Device is a separate expansion of the two pipe systems because of the common Slats not possible.
Die Erfindung bezieht sich nun auf eine Ausführung der letzteren Art, bei der das Abtauen durch ein zweites zwischen den Kühlrohren liegendes und von einem Heizmittel beaufschlagten Rohrsystem erfolgt. Zum Unterschied zu der bekannten Ausführung, bei der die Kühl- und Heizrohre schlangenartig gebogen sind und gemeinsame Lamellen besitzen, sind beim Gegenstand der Erfindung die Rohre beider Systeme in parallelen Reihen angeordnet und ineinandergeschoben. Durch diese Anordnung ergibt sich gegenüber den bekannten Ausführungen der wesentliche Vorteil, daß Kühler und Erhitzer leicht ausgebaut und voneinander getrennt werden können und daß dann bei beiden Teilen gassenförmige Zwischenräume entstehen, die für Reinigungs- und Reparaturzwecke benutzbar sind.The invention now relates to an embodiment of the latter type, in which the defrosting is carried out by a second lying between the cooling tubes and by a heating medium acted upon pipe system takes place. In contrast to the known Version in which the cooling and heating pipes are curved like a snake and are common Have fins, the subject of the invention are the tubes of both systems in arranged in parallel rows and nested. This arrangement results compared to the known designs, the main advantage that cooler and Heater can easily be removed and separated from each other and that at alley-shaped spaces are created in both parts, which are used for cleaning and repair purposes are usable.
Als besonders geeignet für die erfindungsgemäße Ausführung erweisen sich solche Vorrichtungen, die aus glatten oder mit Längsrippen versehenen, vorzugsweise parallelen, gleich langen Wärmeaustauschrohren bestehen, die auf der Außenseite in Längsrichtung von Luft umströmt werden, wobei die Wärmeaustauschrohre reihenweise in Verteilerrohre münden, die senkrecht zu den Wärmeaustauschrohren verlaufen und an Sammelkammern beliebigen, vorwiegend rechteckigen Querschnitts angebracht sind. Hierbei besteht das Gehäuse, welches von der zu kühlenden Luft durchströmt wird, aus einem Kanal mit gleichbleibendem Querschnitt und besitzt, dem Kanalquerschnitt entsprechend, gleich große Ein- und Austrittsöffnungen mit Befestigungsflanschen.Prove to be particularly suitable for the embodiment according to the invention such devices, which are made of smooth or longitudinal ribs, are preferred parallel, equally long heat exchange tubes exist on the outside are flowed around in the longitudinal direction of air, the heat exchange tubes in rows open into distribution pipes that run perpendicular to the heat exchange pipes and are attached to collecting chambers of any, predominantly rectangular cross-section. The housing through which the air to be cooled flows through from a channel with a constant cross-section and has the channel cross-section accordingly, equally sized inlet and outlet openings with mounting flanges.
Eine derartige Ausführungsform der Erfindung wird durch die Zeichnung veranschaulicht. Fig. 1 zeigt einen senkrechten und Fig. 2 einen waagerechten Längsschnitt durch den erfindungsgemäßen Luftkühler. Die Wärmeaustauschfläche besteht aus glatten oder mit Längsrippen versehenen Rohren 1, deren Achsen parallel zur Längsachse des kanalförmigen Gehäuses 2 verlaufen. An beiden Seiten sind die Rohre 1 reihenweise in Verteilerrohren 3 befestigt, welche im rechten Winkel zur Längsachse des Kanals stehen.Such an embodiment of the invention is illustrated by the drawing illustrated. Fig. 1 shows a vertical and Fig. 2 a horizontal longitudinal section by the air cooler according to the invention. The heat exchange surface consists of smooth or tubes 1 provided with longitudinal ribs, the axes of which are parallel to the longitudinal axis of the channel-shaped housing 2 run. The tubes 1 are in rows on both sides fixed in manifolds 3, which are at right angles to the longitudinal axis of the channel stand.
Die Verteilerrohre 3 sind jeweils in zwei Reihen versetzt angeordnet, und zwar derart, daß alle Rohre gleich lang sind. Die Verteilerrohre münden in Sammelkammern 4 und 5 und bilden dadurch zwei voneinander getrennte Wärmeaustauscherteile. Die versetzte Anordnung der Verteilerrohre bewirkt außerdem, daß der freie Durchtrittsquerschnitt auf der Luftseite in der Ebene der Verteilerrohre vergrößert wird und damit zur Verringerung des Luftwiderstandes beiträgt. Überdies wirken die Verteilerrohre gleichzeitig als Gleichrichter und Turbulenzverstärker und nehmen als zusätzliche Wärmeaustauschfläche unmittelbar am Wärmeaustausch teil.The distribution pipes 3 are each arranged offset in two rows, in such a way that all pipes are of the same length. The distribution pipes open into collecting chambers 4 and 5 and thereby form two separate heat exchanger parts. the staggered arrangement of the distribution pipes also causes the free passage cross-section is enlarged on the air side in the plane of the distribution pipes and thus to Contributes to a reduction in air resistance. In addition, the distribution pipes act simultaneously as a rectifier and turbulence intensifier and take as an additional heat exchange surface directly participates in the heat exchange.
Das Kältemittel wird durch den Teil mit den Saminelkammern 4 geleitet, welcher ohne Unterbrechung als Kühler arbeitet, während das andere eingeschobene Aggregat mit den Sammelkammern 5 zwecks Auftauens der Reif- und Eisschichten zeitweise von Dampf oder Heißwasser durchflossen wird. Es genügt oft, sofern Kühl- und Heizaggregat die gleiche Ausführung der Rohrreihen besitzen, jeweils eine Heizrohrreihe zwischen jedem zweiten Paar von Kühlrohrreihen anzuordnen, so daß die gesamte Wärmeaustauschfläche zu zwei Dritteln aus Kühlfläche und zu einem Drittel aus Heizfläche besteht und dennoch jedes Kühlrohr ein auftauendes Heizrohr in unmittelbarer Nähe besitzt.The refrigerant is passed through the part with the laminate chambers 4, which works as a cooler without interruption while the other is inserted Unit with the collecting chambers 5 for the purpose of thawing the layers of frost and ice at times is flowed through by steam or hot water. It is often enough, provided that The cooling and heating units have the same design of the rows of pipes, one each To arrange heating tube row between every other pair of cooling tube rows, so that Two thirds of the total heat exchange surface is made up of the cooling surface and one third consists of a heating surface and yet each cooling pipe is a defrosting heating pipe in the immediate vicinity Proximity possesses.
Es kann zweckmäßig sein, die Wärmeaustauschrohre für das Kühlaggregat anders auszubilden als für das Heizaggregat. Tritt beispielsweise bei einer Anordnung nach Fig. 1 das Kältemittel rechts oben in die Sammelkammer 4 ein und ist bei den in Frage kommenden Kältemittel- und Lufttemperaturen nur auf der rechten Apparatehälfte mit Reif- oder Eisbildung zu rechnen, so genügt es, die Oberfläche der Heizrohre nur auf der rechten Apparatehälfte durch Längsrippen zti vergrößern, während die Kühlrohre auf der ganzen Rohrlänge mit Längsrippen versehen sind. Damit würde bei niedrigeren Gestehungskosten der Zweck des Auftauens ausreichend erfüllt.It can be useful to have the heat exchange pipes for the cooling unit to be trained differently than for the heating unit. Occurs, for example, in an arrangement According to Fig. 1, the refrigerant at the top right in the collecting chamber 4 and is in the Applicable refrigerant and air temperatures only on the right half of the appliance If frost or ice formation is to be expected, it is sufficient to cover the surface of the heating pipes enlarge only on the right half of the apparatus by longitudinal ribs, while the Cooling tubes are provided with longitudinal ribs along the entire length of the tube. That would be at lower production costs sufficiently fulfills the purpose of thawing.
Eine weitere Vergrößerung der Kühlfläche gegenüber der Heizfläche kann z. B. dadurch erreicht werden. daß nach Fig. 3 die Kühlrohre 1 n einer Rohrreihe mit an sich bekannten jalotisieartig schräg gestellten Längsrippen versehen wird, während bei den Heizrohren 11) die Rippenflächen in der Ebene der Wärmeaustauschrohre und Verteilerrohre liegen und in jeder Reihe die Abstände der Heizrohre untereinander ungefähr doppelt so groß als die der Kühlrohre sind. Dabei würde man bei senkrecht zur 'Normalebene angeordneten Verteilerrohren zweckmäßigerweise, wie in Fig.3 dargestellt, die schrägen Längsrippen der Kühlrohre so anordnen, daß ihre obenliegenden Enden auf der Seite der Heizrohre zu liegen kommen, so daß das von den schrägen Rippenflächen abfließende Tauwasser die Heizrohre nicht berühren kann.Another enlargement of the cooling surface compared to the heating surface can e.g. B. be achieved thereby. that according to Fig. 3, the cooling tubes 1 n of a row of tubes is provided with per se known jalotisi-like inclined longitudinal ribs, while with the heating tubes 11) the rib surfaces in the plane of the heat exchange tubes and distribution pipes and in each row the distances between the heating pipes are about twice as large as those of the cooling tubes. One would be at vertical to the 'normal plane arranged distribution pipes expediently, as shown in Fig. 3, Arrange the inclined longitudinal ribs of the cooling tubes so that their ends are at the top come to rest on the side of the heating pipes, so that the sloping rib surfaces draining condensation water cannot touch the heating pipes.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK18739A DE1057625B (en) | 1953-07-09 | 1953-07-09 | Air cooler |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK18739A DE1057625B (en) | 1953-07-09 | 1953-07-09 | Air cooler |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1057625B true DE1057625B (en) | 1959-05-21 |
Family
ID=7215467
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK18739A Pending DE1057625B (en) | 1953-07-09 | 1953-07-09 | Air cooler |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1057625B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005005292A1 (en) * | 2005-02-04 | 2006-08-10 | Küba Kältetechnik GmbH | A plate heat exchanger for gaseous materials has a number of parallel preformed plates between which the gas is passed and heat exchanging tubes passing transversely through them with heater tubes |
DE102004054006B4 (en) * | 2004-11-09 | 2008-04-30 | Kass, Michael | heat exchangers |
DE102010024613A1 (en) | 2010-06-22 | 2011-12-22 | Michael Kass | Plate heat exchanger for heat transfer of gas i.e. air to liquid media e.g. water, in e.g. air-conditioning system, has plates including micro-channel flat profiles closed by manifolds that are connected to main distribution pipe |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE280831C (en) * | ||||
CH98646A (en) * | 1921-02-22 | 1923-04-16 | Alsacienne Constr Meca | Boiler with feed water heater. |
GB401902A (en) * | 1931-12-17 | 1933-11-23 | Imac Installations Modernes Po | Improvements in humidifying or conditioning air |
DE596871C (en) * | 1930-10-09 | 1934-05-11 | Otto Happel | Ribbed tube for heat exchangers with surfaces pressed out of the rib plane |
AT149592B (en) * | 1935-12-07 | 1937-05-10 | Richard Dr Wenzl | Device for dry freezing of air for operating rooms, storage rooms, etc. like |
US2259007A (en) * | 1938-11-12 | 1941-10-14 | Daniel D Story | Construction of storage compartments |
GB638298A (en) * | 1947-03-29 | 1950-06-07 | Power Jets Res & Dev Ltd | Improvements in or relating to heat exchangers |
CH271318A (en) * | 1948-05-07 | 1950-10-31 | Dewandre Co Ltd C | Air heater. |
DE804009C (en) * | 1949-08-17 | 1951-04-16 | Otto Lang Dipl Ing | Defrosting device |
-
1953
- 1953-07-09 DE DEK18739A patent/DE1057625B/en active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE280831C (en) * | ||||
CH98646A (en) * | 1921-02-22 | 1923-04-16 | Alsacienne Constr Meca | Boiler with feed water heater. |
DE596871C (en) * | 1930-10-09 | 1934-05-11 | Otto Happel | Ribbed tube for heat exchangers with surfaces pressed out of the rib plane |
GB401902A (en) * | 1931-12-17 | 1933-11-23 | Imac Installations Modernes Po | Improvements in humidifying or conditioning air |
AT149592B (en) * | 1935-12-07 | 1937-05-10 | Richard Dr Wenzl | Device for dry freezing of air for operating rooms, storage rooms, etc. like |
US2259007A (en) * | 1938-11-12 | 1941-10-14 | Daniel D Story | Construction of storage compartments |
GB638298A (en) * | 1947-03-29 | 1950-06-07 | Power Jets Res & Dev Ltd | Improvements in or relating to heat exchangers |
CH271318A (en) * | 1948-05-07 | 1950-10-31 | Dewandre Co Ltd C | Air heater. |
DE804009C (en) * | 1949-08-17 | 1951-04-16 | Otto Lang Dipl Ing | Defrosting device |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004054006B4 (en) * | 2004-11-09 | 2008-04-30 | Kass, Michael | heat exchangers |
DE102005005292A1 (en) * | 2005-02-04 | 2006-08-10 | Küba Kältetechnik GmbH | A plate heat exchanger for gaseous materials has a number of parallel preformed plates between which the gas is passed and heat exchanging tubes passing transversely through them with heater tubes |
DE102010024613A1 (en) | 2010-06-22 | 2011-12-22 | Michael Kass | Plate heat exchanger for heat transfer of gas i.e. air to liquid media e.g. water, in e.g. air-conditioning system, has plates including micro-channel flat profiles closed by manifolds that are connected to main distribution pipe |
DE102010024613B4 (en) | 2010-06-22 | 2018-03-01 | Michael Kass | Plate heat exchanger |
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