DE2909530A1 - Waste heat recovery heat exchanger - has silencer for exhaust of engine built integrally with it to reduce space and cost - Google Patents
Waste heat recovery heat exchanger - has silencer for exhaust of engine built integrally with it to reduce space and costInfo
- Publication number
- DE2909530A1 DE2909530A1 DE19792909530 DE2909530A DE2909530A1 DE 2909530 A1 DE2909530 A1 DE 2909530A1 DE 19792909530 DE19792909530 DE 19792909530 DE 2909530 A DE2909530 A DE 2909530A DE 2909530 A1 DE2909530 A1 DE 2909530A1
- Authority
- DE
- Germany
- Prior art keywords
- exhaust gas
- heat exchanger
- gas heat
- sound
- 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- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/083—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using transversal baffles defining a tortuous path for the gases or successively throttling gas flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
- F01N3/043—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids without contact between liquid and exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
Schallgedämmter AbgaswärmetauscherSound-insulated exhaust gas heat exchanger
Die Erfindung betrifft einen schallgedämmten Abgas wärmetauscher. Anwendungsgebiet ist die Abwärmenutzung heißer Abgase von Verbrennungsmotoren und die schallgedämmte Fortleitung dieser Abgase.The invention relates to a sound-insulated exhaust gas heat exchanger. The area of application is the use of waste heat from hot exhaust gases from internal combustion engines and the soundproofed transfer of these exhaust gases.
Bei der rationellen Energieverwendung spielt die Wärmerückgewinnung aus heißen Abgasen von Verbrennungsmotoren eine zunehmend wichtige Rolle. Etwa ein Drittel der dem Motor zugeführten primärenergie ist hierin enthalten. Dieser Energieanteii kann sinnvoll zu Heizzwecken dadurch genutzt werden, daß z.B. Heizwasser durch die heißen Abgase erwärmt wird. Verbrennungsmotoren erzeugen durch die stoßweise Abgabe der Abgase aus dem Verbrennungsraum erhebliche Geräusche, die durch Schalldämmmaßnahmen verringert werden müssen. Daher ist neben der blärmerückgewinnung auch die Schalldämmung Zweck der Erfindung.Heat recovery plays a role in the rational use of energy from hot exhaust gases from internal combustion engines play an increasingly important role. About a This contains one third of the primary energy supplied to the engine. This energy component can be used sensibly for heating purposes, e.g. heating water through the hot exhaust gases is heated. Internal combustion engines generate through the intermittent discharge the exhaust gases from the combustion chamber make considerable noise caused by soundproofing measures need to be reduced. Therefore, in addition to noise recovery, there is also sound insulation Purpose of the invention.
Es ist bekannt, daß durch wassergekühlte Abgasstutzen die Temperatur der Abgase von Verbrennungsmotoren um einen gewissen relativ geringen Betrag abgekühlt werden, um die nachfolgenden Bauteile wie Rohrleitungen und Schalldämpfer einer nicht zu hohen Temperaturbelastung auszusetzen und bei Nutzung der Motorabwärmen einen gewissen Anteil aus der Abgaswärme zu erhalten.It is known that the temperature is increased by water-cooled exhaust gas connections the exhaust gases from internal combustion engines are cooled by a certain relatively small amount to the following components such as pipes and silencers a not to expose to high temperature loads and when using the engine waste heat to get a certain proportion from the exhaust gas heat.
Ferner ist eine weitere Abkühlung der Abgase oft nach dem Schalldämpfer bekannt, die bei Verwendung entsprechenden Materials sogar bis zur Unterschreitung des Taupunktes der im Abgas enthaltenen kondensierbaren Bestandteie führt. Weiterhin sind mit Kühlleitungen versehene Schalldämpfer bekannt. Durch diese Anordnungen gelingt eine fast vollständige Rückgewinnung der Motorabwärmen, wenn man die relativ einfach; nutzbare Kühlwasserwärme mit hinzurechnet.Furthermore, there is often a further cooling of the exhaust gases after the muffler known, the use of the appropriate material even to the point below the dew point of the condensable components contained in the exhaust gas. Farther silencers provided with cooling lines are known. Through these arrangements an almost complete recovery of the engine waste heat succeeds, if you consider the relative simple; usable cooling water heat included.
Auf diese Weise gekühlte Verbrennungsmotoren finden in steigendem Maße Anwendung im Bereich der Heizwärmeerzeugung. Zum Teil werden nur die Abwärmen des Motors zu Heizzwecken genutzt ; die mechanische Energie wird in elektrische Energie umgewandelt; zum Teil dienen diese Motoren zum Antrieb von Wärmepumpen. Damit handelt es sich hier um stationäre Anlagen, die oft in unmittelbarer Nähe bewohnter Räume in Betrieb sind und daher sehr gut schallgedämmt sein müssen. Dabei spielt die Abgasführung eine wichtige Rolle.Internal combustion engines cooled in this way are increasing Application in the area of heating heat generation. Partly only the waste heat of the engine used for heating purposes; the mechanical energy turns into electrical Energy converted; some of these motors are used to drive heat pumps. This means that these are stationary systems, which are often in the immediate vicinity occupied rooms are in operation and must therefore be very well soundproofed. Included the exhaust system plays an important role.
Bei der üblichen getrennten Anwendung von Schalldämpfer und Abgaswärmetauscher oder dem mit Kühlleitungen versehenen Abgaswärmetauscher ergeben sich aber folgende Nachteile: Die Abgase durchströmen bei Trennung von Schalldämmung und Wärmetausch mindestens zwei Bauteiles die außerdem dadurch ein Verbindungselement gasdicht zusammengehalten werden müssen. Dieses Verbindungselement stellt wie jedes andere Verbindungselement bei schwingender Belastung, einen Schwachpunkt in der Anlage dar, zumal dort bei einem Defekt giftige Abgase unbemerkt austreten können.With the usual separate use of silencer and exhaust gas heat exchanger or the exhaust gas heat exchanger provided with cooling lines, however, the following results Disadvantages: The exhaust gases flow through when the sound insulation and heat exchange are separated at least two components which also hold a connecting element together in a gas-tight manner Need to become. This connector represents how each other Connection element with vibrating load, a weak point in the system especially since toxic exhaust gases can escape unnoticed in the event of a defect.
Kommen mit Kühlleitungen versehene Schalldämpfer als Abgaswärmetauscher zur Anwendung, so ist deren Konstruktion kompliziert, außerdem besteht wie beim reinen Schalldämpfer ohne Kühlleitungen die Möglichkeit, daß entlang der äußeren Mantelfläche, durch Korrosion bedingte Undichtigkeiten auftreten können, durch die unbemerkt giftiges Abgas entweichen kann.There are silencers with cooling lines as exhaust gas heat exchangers for use, its construction is complicated, and as with pure muffler without cooling lines the possibility that along the outer Jacket surface, leaks caused by corrosion can occur through the toxic exhaust gas can escape unnoticed.
Ein weiterer Nachteil besteht ferner darin, daß Undichtigkeiten von Kühlleitungen zum Austritt von Heizmedium in den Abgasraum führen können, was bei kleineren Leckraten lange Zeit unbemerkt bleiben und zu ständiger korrosionsverstärkender Wirkung im Abgasraum führen kann und bei großen Leckraten zur Beschädigung des Motors, wenn Kühlmedium bei abgeschaltetem Motor bis zu den Auslaßventilen und darüber hinaus zurückströmt.Another disadvantage is that leaks of Cooling lines can lead to the escape of heating medium into the exhaust gas space, which is the case Smaller leak rates go unnoticed for a long time and become more and more corrosive Effect in the exhaust gas chamber and, in the case of high leakage rates, damage to the engine, if cooling medium with the engine switched off up to the exhaust valves and beyond flows back.
Der Erfindung liegt daher die Aufgabe zugrunde, die hier geschilderten Nachteile zum Teil ganz, zum Teil weitestgehend zu vermeiden. Diese Aufgabe wird erfindungsgemäß durch den in Anspruch 1 angegebenen schallgedämmten Abgaswärmetauscher und der Ausgestaltung entsprechend der weiteren Ansprüche 2 - 13 gelöst.The invention is therefore based on the object described here Disadvantages to be avoided partly completely, partly largely. This task will according to the invention by the soundproofed exhaust gas heat exchanger specified in claim 1 and the embodiment according to the further claims 2-13 solved.
Die mit der Erfindung erzielten wesentlichen Vorteile bestehen insbesondere
darin, daß das Verbindungselement zwischen Schalldämpfer und Abgaswärmetauscher
fortfällt, weil Schalldämpfer und Abgaswärmetauscher zu einem Bauteil -zusammengefaßt
werden.
Das Abgas strömt zunächst in einen relativ großen Beruhigungsraum, um dann fortochreitend immer kleiner werdende Räume zu durchströmen' was zu einer sehr guten Schalldämmung führt.The exhaust gas first flows into a relatively large calming area, in order to then flow through increasingly smaller rooms as it progressed 'what became a very good sound insulation.
Durch die Anordnung der scheibenförmigen Bauteile (8, ea, 9, 9a) wird das Abgas so umgelenkt, daß an der gesamten Innenwand des Bauteils (3) ein sehr guter Warmeübergang zustande kommt, der noch durch die llärmeleitung in den als Kühlrippen wirkenden Bauteilen(9 und/oder 9a) verbessert wird. Diese Bauteile haben gleichzeitig eine vorteilhafte Stützwirkung auf Bauteil (3), welches durch den Druck des Heizmediums belastet ist.The arrangement of the disc-shaped components (8, ea, 9, 9a) is the exhaust gas deflected so that on the entire inner wall of the component (3) a very good heat transfer is achieved, which is still through the llärleitung in the as Components (9 and / or 9a) acting on cooling fins is improved. These components have at the same time an advantageous supporting effect on component (3), which is caused by the pressure the heating medium is loaded.
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792909530 DE2909530A1 (en) | 1979-03-10 | 1979-03-10 | Waste heat recovery heat exchanger - has silencer for exhaust of engine built integrally with it to reduce space and cost |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792909530 DE2909530A1 (en) | 1979-03-10 | 1979-03-10 | Waste heat recovery heat exchanger - has silencer for exhaust of engine built integrally with it to reduce space and cost |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2909530A1 true DE2909530A1 (en) | 1980-09-11 |
Family
ID=6065077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19792909530 Withdrawn DE2909530A1 (en) | 1979-03-10 | 1979-03-10 | Waste heat recovery heat exchanger - has silencer for exhaust of engine built integrally with it to reduce space and cost |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2909530A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3338093A1 (en) * | 1983-10-20 | 1985-05-02 | Fa. J. Eberspächer, 7300 Esslingen | Exhaust system for sound dampening and utilisation of the heat of the exhaust gas for heating a heating medium |
US4621677A (en) * | 1983-05-25 | 1986-11-11 | Kogata Gasu Reibo-Gijutsu Kenkyu Kumiai | Heat exchanger for internal combustion engine exhaust, with noise suppressor |
EP0525757A1 (en) * | 1991-08-02 | 1993-02-03 | Ebara Corporation | Silencer with water cooling jacket |
DE4325193A1 (en) * | 1993-07-27 | 1995-02-02 | Hoecker Hans Peter Dipl Ing | Device for exchanging heat |
WO1997037109A1 (en) * | 1996-03-29 | 1997-10-09 | Ivan Nikitich Vozhenin | Device for muffling noise from a gas stream primarily in an internal combustion engine |
WO1999018334A1 (en) | 1997-10-07 | 1999-04-15 | Wegra Anlagenbau Gmbh | Waste gas heat exchanger |
US5934073A (en) * | 1997-05-21 | 1999-08-10 | Degussa Aktiengesellschaft | Auxiliary heating for motor vehicles with internal combustion engines |
DE202013100114U1 (en) | 2013-01-10 | 2014-04-11 | Ses Energiesysteme Gmbh | Exhaust gas heat exchanger with integrated silencer and arrangement with exhaust gas heat exchanger |
-
1979
- 1979-03-10 DE DE19792909530 patent/DE2909530A1/en not_active Withdrawn
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4621677A (en) * | 1983-05-25 | 1986-11-11 | Kogata Gasu Reibo-Gijutsu Kenkyu Kumiai | Heat exchanger for internal combustion engine exhaust, with noise suppressor |
DE3338093A1 (en) * | 1983-10-20 | 1985-05-02 | Fa. J. Eberspächer, 7300 Esslingen | Exhaust system for sound dampening and utilisation of the heat of the exhaust gas for heating a heating medium |
EP0525757A1 (en) * | 1991-08-02 | 1993-02-03 | Ebara Corporation | Silencer with water cooling jacket |
DE4325193A1 (en) * | 1993-07-27 | 1995-02-02 | Hoecker Hans Peter Dipl Ing | Device for exchanging heat |
WO1997037109A1 (en) * | 1996-03-29 | 1997-10-09 | Ivan Nikitich Vozhenin | Device for muffling noise from a gas stream primarily in an internal combustion engine |
US5934073A (en) * | 1997-05-21 | 1999-08-10 | Degussa Aktiengesellschaft | Auxiliary heating for motor vehicles with internal combustion engines |
WO1999018334A1 (en) | 1997-10-07 | 1999-04-15 | Wegra Anlagenbau Gmbh | Waste gas heat exchanger |
DE202013100114U1 (en) | 2013-01-10 | 2014-04-11 | Ses Energiesysteme Gmbh | Exhaust gas heat exchanger with integrated silencer and arrangement with exhaust gas heat exchanger |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |