DE20121018U1 - Gas-liquid heat exchanger - Google Patents
Gas-liquid heat exchangerInfo
- Publication number
- DE20121018U1 DE20121018U1 DE20121018U DE20121018U DE20121018U1 DE 20121018 U1 DE20121018 U1 DE 20121018U1 DE 20121018 U DE20121018 U DE 20121018U DE 20121018 U DE20121018 U DE 20121018U DE 20121018 U1 DE20121018 U1 DE 20121018U1
- Authority
- DE
- Germany
- Prior art keywords
- heat exchanger
- housing
- tubes
- gas
- gases
- 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.)
- Expired - Lifetime
Links
- 239000007788 liquid Substances 0.000 title claims description 8
- 239000007789 gas Substances 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 2
- 239000002023 wood Substances 0.000 description 3
- 239000004071 soot Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
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
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1615—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits being inside a casing and extending at an angle to the longitudinal axis of the casing; the conduits crossing the conduit for the other heat exchange medium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/06—Derivation channels, e.g. bypass
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
Die hier beschriebene Erfindung eines Gas-Flüssigkeits-Wärmetauschers ist eine Weiterentwicklung des Gebrauchsmusters DE 298 12 791.1. Sie baut sozusagen auf dieser Erfindung auf.The invention of a gas-liquid heat exchanger described here is a further development of the utility model DE 298 12 791.1. It builds, so to speak, on this invention.
In diesem Gebrauchsmuster sind für einen Gas-Flüssigkeits-Wärmetauscher mit Rippenrohren kurzgefaßt folgende Schutzansprüche beschrieben:In this utility model, the following protection claims are briefly described for a gas-liquid heat exchanger with finned tubes:
1) Die Kernrohre der Rippenrohre sind bündig in Rohrplatten eingeschweißt und werden durch Hauben miteinander verbunden, welche von außen auf die Rohrplatten aufgeschweißt sind.1) The core tubes of the finned tubes are welded flush into tube plates and are connected to each other by hoods which are welded onto the tube plates from the outside.
2) Diese Rippenrohre sind zu Registern zusammengefaßt, die in ein Gehäuse oder in einen Kanal eingeschoben werden können.2) These finned tubes are combined to form registers that can be inserted into a housing or a duct.
3) Das Gehäuse nach den Schutzanspüchen 1 und 2 ist mit einem zusätzlichen Bypaß-Kanal mit Trennwand zum Register und Klappe(n) ausgestattet.3) The housing according to claims 1 and 2 is equipped with an additional bypass channel with a partition wall to the register and flap(s).
A) Das Gehäuse nach den Schutzanspüchen 1 und 2 ist mit einem Kondensatablauf im Boden ausgestattet. A) The housing according to claims 1 and 2 is equipped with a condensate drain in the bottom.
Ruß- oder staubbelastete Abgase können zu Ablagerungen zwischen den Rippen von Rippenrohren führen. Gemäß Schutzanspruch 2) läßt sich das Register zur Reinigung aus dem Gehäuse herausnehmen. Bei starker Rußbildung, wie sie beispielsweise bei Dieselmotoren und bei Feuerungsanlagen mit Holz, Hackschnitzeln oder Holzpellets auftreten kann, können die Reinigungsintervalle jedoch sehr kurz und der Arbeitsaufwand entsprechend hoch werden.Exhaust gases containing soot or dust can lead to deposits between the fins of finned tubes. According to protection claim 2), the register can be removed from the housing for cleaning. However, in the case of heavy soot formation, as can occur in diesel engines and in combustion systems using wood, wood chips or wood pellets, the cleaning intervals can be very short and the amount of work correspondingly high.
In diesen Fällen bietet die Verwendung von unberippten Rohren einen Ausweg. Die glatte Rohroberfläche reduziert in Verbindung mit Turbulenz des Gases Ablagerungen erheblich.In these cases, the use of unfinned tubes offers a solution. The smooth tube surface, in combination with gas turbulence, significantly reduces deposits.
Um auch diese Ablagerungen noch von außen entfernen zu können, kann das Gehäuse mit ejfier Reinigungstür ausgestattet werden, durch die man die freien Rohrgassen des Registers mit einer Bürste erreichen kann.In order to be able to remove these deposits from the outside, the housing can be equipped with a cleaning door through which the free pipe passages of the register can be reached with a brush.
Die Queranströmung der Rohre sorgt auch ohne Berippung noch für einen guten Wärmeübergang vom Gas zum Rohr oder in umgekehrter Richtung.The cross flow through the tubes ensures good heat transfer from the gas to the tube or vice versa, even without fins.
Eine andere Weiterentwicklung des genannten Gebrauchsmusters betrifft die Konstruktion der Bypaß-Klappe(n). Eine Klappe, die das Gehäuse des Wärmetauschers auf seiner ganzen Breite abtrennt, kann wegen ihrer relativ großen Fläche keinen großen mechanischen Belastungen^ausgesetzt werden wie sie beispielsweise bei Dieselmotoren auftreten (Druckstöße). Die Fläche der Bypaß-Klappe kann stark verkleinert werden, wenn sie aus dem Bereich des Gehäuses in das Rohr für den Abgaseintritt verlegt wird. Die Klappe liegt, in ihren Endstellungen zweckmäßiger Weise schräg zur Rohrachse und findet im Rohr ihren Anschlag. Ihre Form ist somit halbelliptisch. Der wesentliche Teil der mechanischen Belastungen durch Druckstöße des Abgases wird auf diese Weise vom Rohr für den Abgaseintritt aufgefangen. Dieses Rohr muß innerhalb des Gehäuses zur Klappenachse hin doppelt abgeschrägt sein, um eine ausreichend große Austrittsfläche freizugeben.Another further development of the utility model mentioned concerns the design of the bypass flap(s). A flap which separates the housing of the heat exchanger over its entire width cannot, due to its relatively large surface area, be subjected to large mechanical loads such as those which occur in diesel engines (pressure surges). The surface area of the bypass flap can be greatly reduced if it is moved from the area of the housing to the pipe for the exhaust gas inlet. In its end positions, the flap is conveniently located at an angle to the pipe axis and finds its stop in the pipe. Its shape is therefore semi-elliptical. The majority of the mechanical loads caused by pressure surges in the exhaust gas are thus absorbed by the pipe for the exhaust gas inlet. This pipe must be doubly bevelled inside the housing towards the flap axis in order to provide a sufficiently large outlet surface.
Hinweis: Die Numerierung der Details in den folgenden Schutzänsprüchen und in den erläuternden Figuren folgt der Numerierung im zitierten grundlegenden Gebrauchsmuster.Note: The numbering of the details in the following claims and in the explanatory figures follows the numbering in the cited basic utility model.
Claims (3)
gekennzeichnet durch Rohre bzw. Kernrohre, die mit ihren Enden jeweils bündig in die gegenüberliegenden Rohrplatten eingeschweißt und wie in Gebrauchsmuster DE 29 81 2791.1 beschrieben auf der Seite der Flüssigkeit durch Sammler und Hauben miteinander verbunden sind,
weiterhin wie beschrieben gekennzeichnet durch Register (7), die in das Gehäuse oder einen Kanal (8) eingeschoben und fixiert werden können,
weiterhin wie beschrieben gekennzeichnet durch einen zusätzlichen Gaskanal (Bypaß-Kanal (9)), der vom Register (7) durch eine Trennwand (10) und eine oder mehrere Klappen (11) abgetrennt wird,
weiterhin wie beschrieben gekennzeichnet durch einen Kondensatablauf im Boden des Gehäuses. 1. Heat exchanger for the transfer of heat between gases and liquids, in which the gas flows transversely around the tubes (unfinned or externally finned) and the liquid flows through the tubes,
characterized by tubes or core tubes, each of which is welded flush with its end into the opposite tube plates and is connected to one another on the liquid side by collectors and hoods as described in utility model DE 29 81 2791.1,
further characterized as described by registers ( 7 ) which can be inserted and fixed into the housing or a channel ( 8 ),
further characterized as described by an additional gas channel (bypass channel ( 9 )) which is separated from the register ( 7 ) by a partition wall ( 10 ) and one or more flaps ( 11 ),
Furthermore, as described, it is characterized by a condensate drain in the bottom of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20121018U DE20121018U1 (en) | 2001-12-28 | 2001-12-28 | Gas-liquid heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20121018U DE20121018U1 (en) | 2001-12-28 | 2001-12-28 | Gas-liquid heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE20121018U1 true DE20121018U1 (en) | 2002-03-28 |
Family
ID=7965710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE20121018U Expired - Lifetime DE20121018U1 (en) | 2001-12-28 | 2001-12-28 | Gas-liquid heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE20121018U1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006016786A1 (en) * | 2006-04-10 | 2007-10-18 | Triesch, Frank, Dr.-Ing. | Heat exchanger for heating or cooling of fluid flow, comprising internal or external bypass for continuous partial stream and heat carrying fluid flow |
| DE102008051268A1 (en) * | 2008-10-10 | 2010-04-15 | Mahle International Gmbh | cooling device |
| WO2011141673A1 (en) * | 2010-05-12 | 2011-11-17 | Solios Environnement | Method and device for defouling a heat exchanger |
| US8118082B2 (en) | 2004-05-07 | 2012-02-21 | Behr Gmbh & Co. Kg | Heat exchanger in particular for exhaust coolers on internal combustion engines |
-
2001
- 2001-12-28 DE DE20121018U patent/DE20121018U1/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8118082B2 (en) | 2004-05-07 | 2012-02-21 | Behr Gmbh & Co. Kg | Heat exchanger in particular for exhaust coolers on internal combustion engines |
| US8464778B2 (en) | 2004-05-07 | 2013-06-18 | Behr Gmbh & Co. Kg | Heat exchanger for internal combustion engines |
| US9803544B2 (en) | 2004-05-07 | 2017-10-31 | Mahle International Gmbh | Heat exchanger for internal combustion engines |
| DE102006016786A1 (en) * | 2006-04-10 | 2007-10-18 | Triesch, Frank, Dr.-Ing. | Heat exchanger for heating or cooling of fluid flow, comprising internal or external bypass for continuous partial stream and heat carrying fluid flow |
| DE102008051268A1 (en) * | 2008-10-10 | 2010-04-15 | Mahle International Gmbh | cooling device |
| WO2011141673A1 (en) * | 2010-05-12 | 2011-11-17 | Solios Environnement | Method and device for defouling a heat exchanger |
| FR2960052A1 (en) * | 2010-05-12 | 2011-11-18 | Solios Environnement | METHOD AND DEVICE FOR DISENGAGING HEAT EXCHANGER |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 20020502 |
|
| R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20050125 |
|
| R157 | Lapse of ip right after 6 years |
Effective date: 20080701 |