EP0060393A2 - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
EP0060393A2
EP0060393A2 EP82101048A EP82101048A EP0060393A2 EP 0060393 A2 EP0060393 A2 EP 0060393A2 EP 82101048 A EP82101048 A EP 82101048A EP 82101048 A EP82101048 A EP 82101048A EP 0060393 A2 EP0060393 A2 EP 0060393A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
dummy
air
cooling
exchanger according
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.)
Withdrawn
Application number
EP82101048A
Other languages
German (de)
French (fr)
Other versions
EP0060393A3 (en
Inventor
Paul Dipl.-Ing. Tholen
Dieter Dipl.-Ing. Esche
Günther Leupold
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz 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 Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Publication of EP0060393A2 publication Critical patent/EP0060393A2/en
Publication of EP0060393A3 publication Critical patent/EP0060393A3/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/002—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using inserts or attachments
    • 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
    • F28D1/03—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 plate-like or laminated conduits
    • F28D1/0366—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 plate-like or laminated conduits the conduits being formed by spaced plates with inserted elements

Definitions

  • the invention relates to a heat exchanger having a fine-meshed passage cross-section for air as the cooling medium, for example in flat tube, slat or P lat tenbauweise.
  • a heat exchanger is known (DE-GM 19 23 039), in which the end face of the plate walls between the air ducts is cut in order to remove the deposit to avoid dirt. It has been shown, however, that the deposition of dirt in the inflow area was reduced, but on the way of the air through the channels, a layer of dirt was built up in it, which adhered very firmly and in the long air channels only with wire-shaped tools With the help of compressed air to remove.
  • the invention has for its object to limit the inevitable pollution of the airways by a maintenance-friendly design of the air inflow area to a minimum of time and equipment.
  • the heat exchanger be designed on its inflow side as a flat end surface, to which the dummy connects as possible without a transition and the dummy is fixed in position on the heat exchanger by known aids .
  • the dummy is fastened by means of easily detachable connections and can be inserted into a guide and held in the end position.
  • Fig. 1 shows a heat exchanger consisting of an upper and lower box 1 and 2 with a plate pack 3, 4 arranged between them.
  • the plate pack 3, 4 has four plate packs 3 for a liquid cooling medium, between each of which an air duct plate pack 4 is arranged.
  • Fig. 2 is a dummy 5, which is arranged in front of the plate pack 3, 4 and has the same lattice structure as the plate pack 3, 4 in section.
  • the dummy 5 is shown in dashed lines and designed as a slide which is guided on both sides and strikes the underside. To clean the dummy 5 is pulled out on the handle 6 in the direction of arrow 7.
  • Fig. 3 the plate pack 3, 4 is shown in section.
  • the A tappe 5 lies close to the plate pack 3, 4, so that the cooling air flowing through remains undisturbed by the smooth transition in the flow.
  • the direction of flow of the cooling air is indicated by arrows 8.
  • the side of the dummy 5 is taken over by the strips 9, which in turn are attached to the outer walls of the heat exchanger by welds.

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  • 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

Heat exchanger having throughflow cross-sections of close mesh for cooling liquid and gaseous media by means of air, in which an exchangeable trap is arranged in front of the cooling grid in order to dedust the cooling air (Fig. 3). <IMAGE>

Description

Die Erfindung betrifft einen Wärmetauscher mit einem engmaschigen Durchtrittsquerschnitt für Luft als Kühlmedium, beispielsweise in Flachrohr-, Lamellen- oder Plat- tenbauweise.The invention relates to a heat exchanger having a fine-meshed passage cross-section for air as the cooling medium, for example in flat tube, slat or P lat tenbauweise.

Bei Wärmetauschern in kompakter Bauweise sind bekanntlich die Kühlkanäle sehr engmaschig, womit sich eine hohe Kühlleistung auf kleinem Raum erzielen läßt. Damit finden solche Wärmetauscher aus Platzgründen besondere Anwendung im Fahrzeug- und Motorenbau. Da bei luftgekühlten Motoren ohnehin Kühlluft von der Maschine zur Verfügung steht, haben sich hier für die Kühlung des Schmieröls, der Ladeluft und von Wandleröl kompakte Wärmetauscher besonders gut eingeführt. Da Fahrzeuge und Geräte mit luftgekühltem.Motor aber je nach Einsatzart stark verschmutzter Luft ausgesetzt sein können, setzen sich in einem solchen Falle die Kühler an der Lufteintrittsseite bald mit Schmutzablagerungen zu, so daß die Kühlung ausfällt. Die notwendige häufige Reinigung verschmutzter Kühler bei staubigem Betrieb drängt sich damit auf unzumutbare kurze Zeitintervalle zusammen. Erschwert wird die notwendige Wartung je nach Einbauraum des Motors durch die nicht immer günstige zugänglichkeit der Kühler.In heat exchangers in a compact design, it is known that the cooling channels are very close-meshed, so that a high cooling capacity can be achieved in a small space. This means that such heat exchangers are used in vehicle and engine construction for reasons of space. Since cooling air is already available from the machine in air-cooled engines, compact heat exchangers have been introduced particularly well for cooling the lubricating oil, the charge air and converter oil. Since vehicles and devices with an air-cooled engine can be exposed to heavily polluted air, depending on the type of application, the cooler on the air inlet side will soon become clogged with dirt, so that the cooling fails. The necessary frequent cleaning of dirty coolers in dusty operation is crowded into unreasonably short time intervals. Depending on the installation space of the engine, the necessary maintenance is made more difficult by the not always cheap accessibility of the radiator.

Es ist ein Wärmetauscher bekannt (DE-GM 19 23 039), bei dem die Stirnseite der Plattenwände zwischen den Luftkanälen schneidenartig angeschäft ist, um die Ablagerung von Schmutz zu vermeiden. Es hat sich jedoch gezeigt, daß hierbei zwar die Ablagerung von Schmutz im Einströmbereich vermindert wurde, jedoch auf dem Wege der Luft durch die Kanäle, in diesen eine Schmutzschicht aufgebaut wurde, die sehr fest haftete und in den langen Luftkanälen nur noch mit drahtförmigen Werkzeugen unter Zuhilfenahme von Preßluft zu entfernen war.A heat exchanger is known (DE-GM 19 23 039), in which the end face of the plate walls between the air ducts is cut in order to remove the deposit to avoid dirt. It has been shown, however, that the deposition of dirt in the inflow area was reduced, but on the way of the air through the channels, a layer of dirt was built up in it, which adhered very firmly and in the long air channels only with wire-shaped tools With the help of compressed air to remove.

Der Erfindung liegt die Aufgabe zugrunde, die unvermeidliche Verschmutzung der Luftwege durch eine wartungsfreundliche Gestaltung des Lufteinströmbereichs auf ein Mindestmaß an Zeit- und Geräteaufwand zu beschränken.The invention has for its object to limit the inevitable pollution of the airways by a maintenance-friendly design of the air inflow area to a minimum of time and equipment.

Dieses wird bei einem Wärmetauscher der eingangs genannten Art dadurch erreicht, daß vor der Kühllufteintrittsseite eine auswechselbare Attrappe mit der gleichen Gitterstruktur, wie sie der Wärmetauscher aufweist, angeordnet ist. Die Austauschbarkeit der Attrappe ermöglicht es, den am stärksten verschmutzten Einströmbereich schnell auszubauen und mit einfachen Mitteln von Hand zu reinigen, so daß sich hier für die Wartung nur ganz kurze Betriebsunterbrechnungen ergeben.This is achieved in a heat exchanger of the type mentioned at the outset in that an interchangeable dummy with the same lattice structure as that of the heat exchanger is arranged in front of the cooling air inlet side. The interchangeability of the dummy makes it possible to quickly expand the most contaminated inflow area and to clean it by hand with simple means, so that there are only very short interruptions to maintenance.

Damit der Luftwiderstand beim Durchströmen der Attrappe möglichst klein gehalten wird, wird vorgeschlagen, daß der Wärmetauscher an seiner Einströmseite als eine ebene Stirnfläche ausgebildet ist, an die sich die Attrappe möglichst ohne Übergang anschließt und die Attrappe durch bekannte Hilfsmittel in ihrer Lage am Wärmetauscher fixiert ist.So that the air resistance when flowing through the dummy is kept as small as possible, it is proposed that the heat exchanger be designed on its inflow side as a flat end surface, to which the dummy connects as possible without a transition and the dummy is fixed in position on the heat exchanger by known aids .

Um die Wartung ohne zusätzliche Montagewerkzeuge durchführen zu können, wird vorgeschlagen, daß die Attrappe mittels leicht lösbarer Verbindungen befestigt ist und in eine Führung einschiebbar und in der Endlage gehalten ist.In order to be able to carry out maintenance without additional assembly tools, it is proposed that the dummy is fastened by means of easily detachable connections and can be inserted into a guide and held in the end position.

In den Zeichnungen ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt. Gleiche Teile sind mit gleichen Ziffern bezeichnet.In the drawings, an embodiment of the invention is shown schematically. The same parts are labeled with the same numbers.

  • Die Abb. l zeigt einen Wärmetauscher in Ansicht auf die Einströmseite der Kühlluft.Fig. L shows a heat exchanger in view of the inflow side of the cooling air.
  • Die Abb. 2 zeigt den in Abb. 1 dargestellten Wärmetauscher in der Seitenansicht.Fig. 2 shows a side view of the heat exchanger shown in Fig. 1.
  • Die Abb. 3 zeigt einen Querschnitt durch den Wärmetauscher gemäß der Schnittlinien III-III in Abb. 1.Fig. 3 shows a cross section through the heat exchanger according to the section lines III-III in Fig. 1.

In Abb. 1 ist ein Wärmetauscher, bestehend aus einem Ober- und Unterkasten 1 und 2 mit dazwischen angeordnetem Lamellenpaket 3, 4 dargestellt. Das Lamellenpaket 3, 4 hat vier Plattenpakete 3 für ein flüssiges Kühlmedium, zwischen denen jeweils ein Luftkanal-Lamellenpaket 4 angeordnet ist.Fig. 1 shows a heat exchanger consisting of an upper and lower box 1 and 2 with a plate pack 3, 4 arranged between them. The plate pack 3, 4 has four plate packs 3 for a liquid cooling medium, between each of which an air duct plate pack 4 is arranged.

In Abb. 2 ist eine Attrappe 5, die vor dem Lamellenpaket 3, 4 angeordnet ist und die gleiche Gitterstruktur hat wie das Lamellenpaket 3, 4 im Schnitt dargestellt. Die Attrappe 5 ist gestrichelt dargestellt und als Schieber ausgebildet, der beiderseits geführt ist und an der Unterseite anschlägt. Zum Reinigen wird die Attrappe 5 am Griff 6 in Pfeilrichtung 7 herausgezogen.In Fig. 2 is a dummy 5, which is arranged in front of the plate pack 3, 4 and has the same lattice structure as the plate pack 3, 4 in section. The dummy 5 is shown in dashed lines and designed as a slide which is guided on both sides and strikes the underside. To clean the dummy 5 is pulled out on the handle 6 in the direction of arrow 7.

In Abb. 3 ist das Lamellenpaket 3, 4 im Schnitt dargestellt. Die Attrappe 5 liegt dicht am Lamellenpaket 3, 4 an, so daß die durchströmende Kühlluft durch den glatten Übergang in der Strömung ungestört bleibt. Die Strömungsrichtung der Kühlluft ist durch die Pfeile 8 gekennzeichnet. Die Seitenführung der Attrappe 5 wird von den Leisten 9 übernommen, die ihrerseits durch Schweißnähte an den Außenwänden des Wärmetauschers befestigt sind.In Fig. 3, the plate pack 3, 4 is shown in section. The A tappe 5 lies close to the plate pack 3, 4, so that the cooling air flowing through remains undisturbed by the smooth transition in the flow. The direction of flow of the cooling air is indicated by arrows 8. The side of the dummy 5 is taken over by the strips 9, which in turn are attached to the outer walls of the heat exchanger by welds.

Claims (5)

1. Wärmetauscher mit engmaschigem Durchtrittsquerschnitt für Luft als Kühlmedium, beispielsweise in Flachrohr-, Lamellen- oder Plattenbauweise, dadurch gekennzeichnet, daß vor der Kühllufteintrittsseite eine auswechselbare Attrappe (5) mit der gleichen Gitterstruktur wie sie der Wärmetauscher (3, 4) aufweist, angeordnet ist.1. Heat exchanger with a close-meshed passage cross-section for air as a cooling medium, for example in flat tube, lamella or plate construction, characterized in that an interchangeable dummy (5) with the same lattice structure as that of the heat exchanger (3, 4) has been arranged in front of the cooling air inlet side is. 2. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß der Wärmetauscher an seiner Einströmseite als eine ebene Stirnfläche ausgebildet ist, an die sich die Attrappe (5) möglichst ohne Übergang anschließt.2. Heat exchanger according to claim 1, characterized in that the heat exchanger is formed on its inflow side as a flat end face, to which the A trapeze (5) connects as possible without a transition. 3. Wärmetauscher nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Attrappe (5) durch bekannte Hilfsmittel in ihrer Lage am Wärmetauscher fixiert sind.3. Heat exchanger according to one of claims 1 or 2, characterized in that the dummy (5) are fixed in their position on the heat exchanger by known aids. 4. Wärmetauscher nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Attrappe (5) mittels leicht lösbarer Verbindungen befestigt ist.4. Heat exchanger according to one of claims 1 to 3, characterized in that the dummy (5) is fastened by means of easily detachable connections. 5. Wärmetauscher nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Attrappe (5) in eine Führung (9) einschiebbar und in der Endlage gehalten ist.5. Heat exchanger according to one of claims 1 to 4, characterized in that the dummy (5) in a guide (9) can be inserted and held in the end position.
EP82101048A 1981-03-18 1982-02-12 Heat exchanger Withdrawn EP0060393A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813110448 DE3110448C1 (en) 1981-03-18 1981-03-18 Heat exchanger
DE3110448 1981-03-18

Publications (2)

Publication Number Publication Date
EP0060393A2 true EP0060393A2 (en) 1982-09-22
EP0060393A3 EP0060393A3 (en) 1983-04-13

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EP82101048A Withdrawn EP0060393A3 (en) 1981-03-18 1982-02-12 Heat exchanger

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EP (1) EP0060393A3 (en)
DE (1) DE3110448C1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534354A1 (en) * 1982-10-11 1984-04-13 Lipets Adolf Apparatus for heating air using the fumes in steam generators and furnaces.
WO1998050751A1 (en) * 1997-05-07 1998-11-12 Volkswagen Aktiengesellschaft Device for protecting the radiator of a motor vehicle against projected particles
WO2018202632A1 (en) * 2017-05-02 2018-11-08 Valeo Systemes Thermiques Heat exchanger protection device
DE102017221083A1 (en) 2017-11-24 2019-05-29 Mahle International Gmbh Heat exchanger for a motor vehicle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3916920C2 (en) * 1989-05-24 1994-05-26 Audi Ag Protective grille for the arrangement of a radiator or an air intake in a motor vehicle
DE20307881U1 (en) * 2003-05-21 2004-09-23 Autokühler GmbH & Co. KG Heat exchanger/charge cooler for a motor vehicle, has pipes to form a heat exchanger network, a collector with a receiver and flow-conducting elements with tapered thicknesses
CN102770049B (en) * 2010-02-26 2016-05-18 开利公司 Refrigerating cabinet

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL286326A (en) *
US2054538A (en) * 1934-10-06 1936-09-15 Int Harvester Co Radiator guard
GB582142A (en) * 1944-01-03 1946-11-06 Istvan Barna Bullet-proof radiator
DE1958566A1 (en) * 1968-11-25 1970-06-11 Lummus Co Heat exchanger
US4178034A (en) * 1978-01-30 1979-12-11 Mittendorf Theodor H Vehicle insect protection apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL286326A (en) *
US2054538A (en) * 1934-10-06 1936-09-15 Int Harvester Co Radiator guard
GB582142A (en) * 1944-01-03 1946-11-06 Istvan Barna Bullet-proof radiator
DE1958566A1 (en) * 1968-11-25 1970-06-11 Lummus Co Heat exchanger
US4178034A (en) * 1978-01-30 1979-12-11 Mittendorf Theodor H Vehicle insect protection apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534354A1 (en) * 1982-10-11 1984-04-13 Lipets Adolf Apparatus for heating air using the fumes in steam generators and furnaces.
WO1998050751A1 (en) * 1997-05-07 1998-11-12 Volkswagen Aktiengesellschaft Device for protecting the radiator of a motor vehicle against projected particles
WO2018202632A1 (en) * 2017-05-02 2018-11-08 Valeo Systemes Thermiques Heat exchanger protection device
FR3073453A1 (en) * 2017-05-02 2019-05-17 Valeo Systemes Thermiques DEVICE FOR PROTECTING A HEAT EXCHANGER
DE102017221083A1 (en) 2017-11-24 2019-05-29 Mahle International Gmbh Heat exchanger for a motor vehicle

Also Published As

Publication number Publication date
DE3110448C1 (en) 1983-06-01
EP0060393A3 (en) 1983-04-13

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Inventor name: THOLEN, PAUL, DIPL.-ING.

Inventor name: ESCHE, DIETER, DIPL.-ING.

Inventor name: LEUPOLD, GUENTHER