DE102005059581A1 - Device for heating tank for urea water solution in motor vehicle has arrangement whereby cooling fluid as heat transfer medium is fed to additional heat exchanger arranged in cooling water circuit and flow-washed by it - Google Patents

Device for heating tank for urea water solution in motor vehicle has arrangement whereby cooling fluid as heat transfer medium is fed to additional heat exchanger arranged in cooling water circuit and flow-washed by it Download PDF

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Publication number
DE102005059581A1
DE102005059581A1 DE102005059581A DE102005059581A DE102005059581A1 DE 102005059581 A1 DE102005059581 A1 DE 102005059581A1 DE 102005059581 A DE102005059581 A DE 102005059581A DE 102005059581 A DE102005059581 A DE 102005059581A DE 102005059581 A1 DE102005059581 A1 DE 102005059581A1
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Germany
Prior art keywords
cooling
heat exchanger
circuit
cooling water
tank
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DE102005059581A
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German (de)
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DE102005059581B4 (en
Inventor
Gerhard Dipl.Ing. Martin
Daniel Dipl.Ing.(FH) Teubner
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MAN Truck and Bus SE
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MAN Nutzfahrzeuge AG
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Classifications

    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9431—Processes characterised by a specific device
    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/90—Injecting reactants
    • 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
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • 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
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2067—Urea
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1486—Means to prevent the substance from freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/18—Heater
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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

Abstract

A device for heating a tank (1) for urea water solution in a motor vehicle has an arrangement whereby cooling fluid as a heat transfer medium is fed to an additional heat exchanger which is arranged in the cooling water circuit and flow-washed by it. A closed cooling circuit (6) is connected to the additional heat exchanger and by means of a pump arranged in the cooling circuit supplies the tank heater via a pipe.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zur Beheizung eines Tanks für Harnstoffwasserlösung in einem Kraftfahrzeug, insbesondere einem Lastkraftwagen oder Omnibus mit einem Motor und einem Kühlwasserkreislauf, bei der einem, im Kühlwasserkreislauf angeordneten und vom Kühlwasserkreislauf durchströmbaren zusätzlichen Wärmetauscher, Kühlflüssigkeit als Wärmeträger zugeführt wird.The The invention relates to a device for heating a Tanks for Urea solution in a motor vehicle, in particular a truck or bus with a motor and a cooling water circuit, at one, in the cooling water circuit arranged and from the cooling water circuit through which additional Heat exchanger, coolant is supplied as a heat transfer medium.

Aus der DE 199 35 920 C2 ist eine Vorrichtung und ein Verfahren zum Beheizen eines Reduktionsmittelvorratsbehälters einer Abgasnachbehandlungsanlage für eine Brennkraftmaschine bekannt. Darin wird die Heizleistung für das im Reduktionsmittelvorratsbehälter gespeicherte Reduktionsmittel durch die Abwärme der Brennkraftmaschine bereitgestellt. Das Kühlmittel der Brennkraftmaschine wird durch ein Heizelement geleitet, das über eine Vorlaufleitung und eine Rücklaufleitung mit der Kühleinrichtung der Brennkraftmaschine verbunden ist und die Vorlaufleitung und die Rücklaufleitung sind zumindest streckenweise derart angeordnet, dass sie einen Wärmetauscher bilden.From the DE 199 35 920 C2 a device and a method for heating a reducing agent reservoir of an exhaust aftertreatment system for an internal combustion engine is known. Therein, the heating power for the reducing agent stored in the reducing agent reservoir is provided by the waste heat of the internal combustion engine. The coolant of the internal combustion engine is passed through a heating element which is connected via a flow line and a return line to the cooling device of the internal combustion engine and the flow line and the return line are at least partially arranged such that they form a heat exchanger.

Die Vorrichtung und das dazugehörige Verfahren haben sich in der Praxis bewährt, wünschenswert wäre jedoch, den Wärmetauscher möglichst nahe am Motor des Kraftfahrzeugs anzuordnen.The Device and the associated Methods have been proven in practice, but it would be desirable the heat exchanger as close as possible to arrange on the engine of the motor vehicle.

Aufgabe der vorliegenden Erfindung ist es, eine gattungsgemäße Vorrichtung zur Beheizung eines Tanks für Harnstoffwasserlösung (im Weiteren HWL) zu schaffen, bei der die Rohrleitungen des Kühlwasserkreislaufs im Vergleich zu Kraftfahrzeugen ohne Tank für HWL nicht verlängert zu werden brauchen.task The present invention is a generic device for heating a tank for Urea solution (hereinafter HWL) to create, in which the pipes of the cooling water circuit compared to motor vehicles without tank for HWL not extended too will need.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, dass in einer Vorrichtung zur Beheizung eines Tanks für HWL in einem Kraftfahrzeug, insbesondere einem Lastkraftwagen oder Omnibus mit einem Motor und einem Kühlwasserkreislauf, einem im Kühlwasserkreislauf angeordneten und vom Kühlwasserkreislauf durchströmbaren zusätzlichen Wärmetauscher Kühlflüssigkeit als Wärmeträger zugeführt wird, und an den zusätzlichen Wärmetauscher ein geschlossener Kühlkreislauf gekoppelt ist, der mittels einer in dem Kühlkreislauf angeordneten Pumpe über eine Rohrleitung die Tankheizung speist.The The object is achieved in that in a device for heating a tank for HWL in a motor vehicle, in particular a truck or bus with a motor and a cooling water circuit, one in the cooling water circuit arranged and from the cooling water circuit through which additional heat exchangers coolant is supplied as a heat transfer medium, and at the extra heat exchangers a closed cooling circuit coupled by means of a pump disposed in the cooling circuit via a Pipeline feeds the tank heater.

Der Wärmetauscher kann als Bestandteil des Kühlwasserkreislaufs sehr kostengünstig hergestellt werden. Zum Erreichen eines guten thermischen Kontakts zwischen dem Wärmetauscher und dem Kühlwasserkreislauf können die den Kühlwasserkreislauf führenden Rohrleitungen sowie diejenigen Leitungen, die im Wärmetauscher den Kühlkreislauf führen, aus einem metallischen Material bestehen, dass sich besonders zur Wärmeleitung eignet. Wird auf metallische Leitungsabschnitte für den Wärmetauscher verzichtet, ist es vorteilhaft, die Schläuche unter Einfügung eines thermisch gut leitenden Materials, gedacht ist z. B. an Aluminium, in engen Kontakt zueinander zu legen.Of the heat exchangers can as part of the cooling water circuit very inexpensive getting produced. To achieve a good thermal contact between the heat exchanger and the cooling water circuit can the the cooling water circuit leading Pipelines as well as those pipes that are in the heat exchanger the cooling circuit to lead, consist of a metallic material that is especially for heat conduction suitable. Used on metallic pipe sections for the heat exchanger omitted, it is advantageous to insert the hoses with a thermally well conductive material, is thought z. To aluminum, to be in close contact with each other.

Weitere Merkmale, Einzelheiten und Vorteile der Erfindung ergeben sich aus der folgenden Beschreibung einer bevorzugten Ausführungsform der Erfindung sowie anhand der Zeichnung. Hierbei zeigen:Further Features, details and advantages of the invention will become apparent the following description of a preferred embodiment the invention and with reference to the drawing. Hereby show:

1 den Schnitt durch einen Tank für HWL und 1 the section through a tank for HWL and

2 in schematischer Darstellung die Anordnung eines Wärmetauschers mit Heizwendel und Tank für HWL. 2 a schematic representation of the arrangement of a heat exchanger with heating coil and tank for HWL.

1 zeigt einen Tank 1 für HWL, der am Boden 2 Heizwendel 3 aufweist. 1 shows a tank 1 for HWL, on the ground 2 heating coil 3 having.

2 zeigt in schematischer Darstellung in Draufsicht die erfindungsgemäße Vorrichtung mit einem Wärmetauscher 4, Rohrleitungen 5 zur Aufnahme des Kühlkreislaufs 6, eine im Kühlkreislauf 6 angeordnete Pumpe 7 sowie einen Tank 1 für HWL. Der Wärmetauscher 4 wird durch den Kühlwasserkreislauf 8 durchströmt. Der Wärmetauscher 4 weist je eine Zulaufleitung 9 sowie eine Rücklaufleitung 10 auf, die den Kühlwasserkreislauf 8 vom Motor des Kraftfahrzeugs (nicht dargestellt) zum Wärmetauscher 4 führt und nach Übertragung der Wärme auf den Kühlkreislauf 6 den heruntergekühlten Kühlwasserkreislauf 8 dem Motor erneut zuleitet. Um eine Maximierung der Wärmeübertragung vom Kühlwasserkreislauf 8 auf den Kühlkreislauf 6 innerhalb des Wärmetauschers 4 zu bewirken sowie die Wärmeabgabe über den Kühlkreislauf 6 innerhalb des Tanks 1 zu maximieren, sind die Heizwendel 3 im Wärmetauscher 4 sowie im Tank 1 in Schleifen gelegt. Die Pumpe 7 ist eine herkömmliche Pumpe aus dem Stand der Technik zur Förderung des Kühlkreislaufs 6 innerhalb der Rohrleitung 5, die den Wärmetauscher 4 mit dem Tank 1 verbinden. Die Pumpe 7 ist im Kühlkreislauf 5 zwischen Wärmetauscher 4 und Tank 1 angeordnet. Die Pumpe 7 kann in Bezug auf die Förderungsrichtung umschaltbar sein und stellt die Förderung des Kühlmittels in den Rohrleitungen 5 des Kühlkreislaufs 6 sicher. 2 shows a schematic representation in plan view of the device according to the invention with a heat exchanger 4 , Piping 5 for receiving the cooling circuit 6 , one in the cooling circuit 6 arranged pump 7 as well as a tank 1 for HWL. The heat exchanger 4 is through the cooling water circuit 8th flows through. The heat exchanger 4 each has a supply line 9 and a return line 10 on that the cooling water circuit 8th from the engine of the motor vehicle (not shown) to the heat exchanger 4 leads and after transfer of heat to the cooling circuit 6 the cooled down cooling water circuit 8th redirected to the engine. To maximize heat transfer from the cooling water circuit 8th on the cooling circuit 6 inside the heat exchanger 4 to effect as well as the heat transfer through the cooling circuit 6 inside the tank 1 to maximize, are the heating coil 3 in the heat exchanger 4 as well as in the tank 1 put in loops. The pump 7 is a conventional pump of the prior art for promoting the refrigeration cycle 6 inside the pipeline 5 that the heat exchanger 4 with the tank 1 connect. The pump 7 is in the cooling circuit 5 between heat exchangers 4 and tank 1 arranged. The pump 7 can be switchable with respect to the direction of conveyance and provides the promotion of the coolant in the pipelines 5 of the cooling circuit 6 for sure.

Nach einer bevorzugten Ausführungsform der Erfindung kann die Pumpe 7 einen Drehzahlregler 11 aufweisen. Mit Hilfe des Drehzahlreglers 11 kann die Pumpe 7 derart angesteuert werden, dass in Abhängigkeit des Kühlungsbedarfs im Tank 1 stets die erforderliche Menge an Kühlflüssigkeit im Kühlkreislauf 5 bereitgestellt wird. Die Temperierung der HWL kann bei Betrieb des Motors auf einer konstanten Temperatur gehalten werden. Die Pumpe 7 bewirkt, dass in der Rohrleitung 5 des Kühlkreislaufs 6 immer ausreichend Kühlflüssigkeit zur Verfügung gestellt wird, damit die Wärmeenergie der Kühlflüssigkeit des Kühlwasserkreislaufs 8 auf den Wärmeträger des Kühlkreislaufs 6 übertragen werden kann. Zur Sicherstellung des Wärmeflusses zwischen Wärmetauscher 4 und Tank 1 kann im Kühlkreislauf 5 ein Thermostat 12 angeordnet sein. Der Thermostat 12 ist in der Weise einstellbar, und wirkt auf die Pumpe 7 ein, dass die Temperatur der HWL im Tank 1 einen bestimmten Temperaturbereich nicht unter- bzw. überschreitet. Der Wärmefluss zwischen Wärmetauscher 4 und der HWL im Tank 1 kann nur solange erfolgen, bis die HWL im Tank 1 die Temperatur der Kühlflüssigkeit im Kühlwasserkreislauf 8 erreicht. In Abhängigkeit der auf die im Tank 1 befindliche HWL zu übertragende erforderliche Wärmeenergie kann die Rohrleitung 5 aus einem beliebigen wärmeleitfähigen Material bestehen. Ebenfalls in Abhängigkeit von der zu übertragenden Wärmemenge kann die Stärke der Rohrleitung 5 bzw. die Anordnung der Heizwendel 3 im Tank 1 beliebig gewählt werden. Denkbar ist, dass die Heizwendel 3 schlangenförmig auf dem Boden 2 des Tanks 1 angeordnet sind. Vorstellbar ist jedoch auch, dass die Heizwendel 3 an den übrigen Wänden 13 des Tanks 1 angeordnet sind. In Abhängigkeit von der Größe des Tanks 1 ist es ebenfalls denkbar, die Rohrleitungen 5 im Innenraum 14 des Tanks 1 anzuordnen. Je nach Größe des Tanks 1 wirkt sich die Übertragung der Wärmeenergie vom Kühlwasserkreislauf 8 auf den Kühlkreislauf 6 positiv auf die Kühlung des Motors aus. Dem Kühlwasserkreislauf 8 wird im Wärmetauscher 4 Wärmeenergie entzogen, wodurch die Kühlleistung des Kühlwasserkreislaufs 8 im Bezug auf den Motor des Kraftfahrzeugs erhöht wird. Durch die Zwangsumlaufkühlung des Kühlkreislaufs 6 mit Hilfe der Pumpe 7 erfolgt eine zügige Ableitung der Überschusswärme aus dem Kühlwasserkreislauf 8 über den Wärmetauscher 4 zur im Tank 1 angeordneten HWL. Vorstellbar ist, dass die Pumpe 7 zeitversetzt mit dem Anlaufen des Motors des Kraftfahrzeugs in Gang gesetzt wird, um die im Kühlwasserkreislauf 8 angeordnete Kühlflüssigkeit zur erforderlichen Betriebstemperatur zu führen. Es ist darüber hinaus vorteilhaft, den Wärmetauscher 1 in unmittelbare Nähe des Motors des Kraftfahrzeugs anzuordnen, um die Wirkungsweise des Wärmetauschers zusätz lich zu erhöhen und um die erforderliche Länge der Rohrleitung 5 des Kühlwasserkreislaufs 8 zu minimieren.According to a preferred embodiment of the invention, the pump 7 a speed controller 11 exhibit. With the help of the speed controller 11 can the pump 7 be controlled so that, depending on the cooling demand in the tank 1 always the required amount of coolant in the cooling circuit 5 provided. The temperature of the HWL can be kept at a constant temperature when the motor is running. The pump 7 causes in the pipeline 5 of the cooling circuit 6 always sufficient cooling liquid is provided, so that the heat energy of the cooling liquid of the cooling water circuit 8th on the heat transfer medium of the cooling circuit 6 can be transferred. To ensure the heat flow between the heat exchanger 4 and tank 1 can in the cooling circuit 5 a thermostat 12 be arranged. The thermostat 12 is adjustable and acts on the pump 7 a that the temperature of the HWL in the tank 1 does not fall below or exceed a certain temperature range. The heat flow between the heat exchanger 4 and the HWL in the tank 1 can only be done until the HWL in the tank 1 the temperature of the coolant in the cooling water circuit 8th reached. Depending on the in the tank 1 HWL to be transferred required heat energy, the pipeline 5 consist of any thermally conductive material. Also depending on the amount of heat to be transmitted, the strength of the pipeline 5 or the arrangement of the heating coil 3 in the tank 1 be chosen arbitrarily. It is conceivable that the heating coil 3 serpentine on the ground 2 of the tank 1 are arranged. However, it is also conceivable that the heating coil 3 on the other walls 13 of the tank 1 are arranged. Depending on the size of the tank 1 it is also conceivable the piping 5 in the interior 14 of the tank 1 to arrange. Depending on the size of the tank 1 affects the transfer of heat energy from the cooling water circuit 8th on the cooling circuit 6 positive for the cooling of the engine. The cooling water circuit 8th is in the heat exchanger 4 Heat energy withdrawn, reducing the cooling capacity of the cooling water circuit 8th is increased with respect to the engine of the motor vehicle. Due to the forced circulation cooling of the cooling circuit 6 with the help of the pump 7 There is a rapid dissipation of excess heat from the cooling water circuit 8th over the heat exchanger 4 to the tank 1 arranged HWL. It is conceivable that the pump 7 Time-delayed with the start of the engine of the motor vehicle is set in motion to those in the cooling water circuit 8th arranged to lead coolant to the required operating temperature. It is also advantageous to the heat exchanger 1 to arrange in the immediate vicinity of the engine of the motor vehicle to increase the operation of the heat exchanger additional Lich and the required length of the pipeline 5 of the cooling water circuit 8th to minimize.

In einer weiteren bevorzugten Ausführungsform der Erfindung kann in den Kühlkreislauf 6 des Wärmetauschers 4 eine Standheizung angeordnet sein. Die Standheizung ermöglicht, das die HWL im Tank 1 bereits vor in Gang Setzung des Motors des Kraftfahrzeugs die nötige Betriebstemperatur erreicht.In a further preferred embodiment of the invention, in the cooling circuit 6 of the heat exchanger 4 be arranged a heater. The auxiliary heater allows the HWL in the tank 1 already reached in gear setting the engine of the motor vehicle, the required operating temperature.

11
Tanktank
22
Bodenground
33
Heizwendelheating coil
44
Wärmetauscherheat exchangers
55
Rohrleitungpipeline
66
KühlkreislaufCooling circuit
77
Pumpepump
88th
KühlwasserkreislaufCooling water circuit
99
Zulaufleitungsupply line
1010
RücklaufleitungReturn line
1111
DrehzahlreglerSpeed governor
1212
Thermostatthermostat
1313
SeitenwandSide wall
1414
InneraumInterior Color

Claims (3)

Vorrichtung zur Beheizung eines Tanks (1) für Harnstoffwasserlösung in einem Kraftfahrzeug, insbesondere einem Lastkraftwagen oder Omnibus mit einem Motor und einem Kühlwasserkreislauf (8), bei der einem, im Kühlwasserkreislauf (8) angeordneten und vom Kühlwasserkreislauf (8) durchströmbaren zusätzlichen Wärmetauscher (4), Kühlflüssigkeit als Wärmeträger zugeführt wird, und an den zusätzlichen Wärmetauscher (4) ein geschlossener Kühlkreislauf (6) gekoppelt ist, der mittels einer in dem Kühlkreislauf (6) angeordneten Pumpe (7) über eine Rohrleitung (5) die Tankheizung speist.Device for heating a tank ( 1 ) for urea water solution in a motor vehicle, in particular a truck or bus with an engine and a cooling water circuit ( 8th ), at one, in the cooling water circuit ( 8th ) and from the cooling water circuit ( 8th ) throughflowable additional heat exchanger ( 4 ), Cooling liquid is supplied as a heat transfer medium, and to the additional heat exchanger ( 4 ) a closed cooling circuit ( 6 ) coupled by means of a in the cooling circuit ( 6 ) arranged pump ( 7 ) via a pipeline ( 5 ) feeds the tank heater. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Pumpe (7) einen Drehzahlregler (11) aufweist.Device according to claim 1, characterized in that the pump ( 7 ) a speed controller ( 11 ) having. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass in den Kühlkreislauf (6) eine Standheizung angeordnet ist.Apparatus according to claim 1, characterized in that in the cooling circuit ( 6 ) A heater is arranged.
DE102005059581A 2005-12-14 2005-12-14 Device for heating a tank for urea water solution Active DE102005059581B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102005059581A DE102005059581B4 (en) 2005-12-14 2005-12-14 Device for heating a tank for urea water solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005059581A DE102005059581B4 (en) 2005-12-14 2005-12-14 Device for heating a tank for urea water solution

Publications (2)

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WO2009068881A1 (en) * 2007-11-30 2009-06-04 Perkins Engines Company Limited Exhaust treatment system having a diverter valve
DE102008005196A1 (en) * 2008-01-18 2009-07-23 Dbk David + Baader Gmbh Tank removal system with electrical and fluidic heating device
DE102008006630A1 (en) * 2008-01-29 2009-07-30 Volkswagen Ag Exhaust gas aftertreatment device for exhaust gas flow of diesel engine of motor vehicle, has temperature maintaining device assigned to auxiliary heater of combustion engine by valve arrangement
US20090211236A1 (en) * 2008-02-26 2009-08-27 Otfried Schwarzkopf System for controlling the temperature of a fluid additive in a motor vehicle
WO2010034609A1 (en) * 2008-09-24 2010-04-01 Emitec Gesellschaft Für Emissionstechnologie Mbh Tank for a reducing agent having heating units
EP2172626A1 (en) * 2007-06-26 2010-04-07 Hitachi Construction Machinery Co., Ltd Self-propelled construction machine
WO2013082400A1 (en) 2011-12-01 2013-06-06 Paccar Inc Systems and methods for controlling a variable speed water pump
EP2907564A1 (en) * 2014-02-14 2015-08-19 DEUTZ Aktiengesellschaft Method for cleaning diesel engine exhaust gases
DE102015015442A1 (en) * 2015-12-02 2017-06-08 Eichenauer Heizelemente Gmbh & Co. Kg Reducing agent system with a heated tank
US20170254594A1 (en) * 2016-03-03 2017-09-07 Röchling Automotive SE & Co. KG Heat exchanger for at least partial arrangement in a service liquid tank and heat-exchanger body for such a heat exchanger
CN112145261A (en) * 2020-08-05 2020-12-29 中船澄西船舶修造有限公司 Marine low-temperature self-cleaning urea cabin

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EP1731882B1 (en) * 2004-03-29 2014-07-30 Nissan Diesel Motor Co., Ltd. Structure for reducing agent container

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EP2172626A4 (en) * 2007-06-26 2011-12-28 Hitachi Construction Machinery Self-propelled construction machine
EP2065578A1 (en) * 2007-11-28 2009-06-03 International Engine Intellectual Property Heating system for chemical used in exhaust purification system
CN101878354B (en) * 2007-11-30 2012-09-12 珀金斯发动机有限公司 Exhaust treatment system having a diverter valve
US7966811B2 (en) 2007-11-30 2011-06-28 Perkins Engines Company Limited Exhaust treatment system having a diverter valve
WO2009068881A1 (en) * 2007-11-30 2009-06-04 Perkins Engines Company Limited Exhaust treatment system having a diverter valve
DE102008005196A1 (en) * 2008-01-18 2009-07-23 Dbk David + Baader Gmbh Tank removal system with electrical and fluidic heating device
US8301020B2 (en) 2008-01-18 2012-10-30 Dbk David + Baader Gmbh Tank withdrawal system with electric and fluidic heating device
DE102008006630A1 (en) * 2008-01-29 2009-07-30 Volkswagen Ag Exhaust gas aftertreatment device for exhaust gas flow of diesel engine of motor vehicle, has temperature maintaining device assigned to auxiliary heater of combustion engine by valve arrangement
US20090211236A1 (en) * 2008-02-26 2009-08-27 Otfried Schwarzkopf System for controlling the temperature of a fluid additive in a motor vehicle
DE102009009538B4 (en) 2008-02-26 2018-12-27 Voss Automotive Gmbh System for controlling the temperature of a fluid additive in a motor vehicle
US8511077B2 (en) * 2008-02-26 2013-08-20 Voss Automotive Gmbh System for controlling the temperature of a fluid additive in a motor vehicle
WO2010034609A1 (en) * 2008-09-24 2010-04-01 Emitec Gesellschaft Für Emissionstechnologie Mbh Tank for a reducing agent having heating units
US10119453B2 (en) 2011-12-01 2018-11-06 Paccar Inc Systems and methods for controlling a variable speed water pump
EP2785995A4 (en) * 2011-12-01 2015-05-27 Paccar Inc Systems and methods for controlling a variable speed water pump
US9416720B2 (en) 2011-12-01 2016-08-16 Paccar Inc Systems and methods for controlling a variable speed water pump
US10914227B2 (en) 2011-12-01 2021-02-09 Paccar Inc Systems and methods for controlling a variable speed water pump
WO2013082400A1 (en) 2011-12-01 2013-06-06 Paccar Inc Systems and methods for controlling a variable speed water pump
US9561470B2 (en) 2014-02-14 2017-02-07 Deutz Aktiengesellschaft Method for the purification of diesel engine exhaust gases
EP2907564A1 (en) * 2014-02-14 2015-08-19 DEUTZ Aktiengesellschaft Method for cleaning diesel engine exhaust gases
DE102015015442A1 (en) * 2015-12-02 2017-06-08 Eichenauer Heizelemente Gmbh & Co. Kg Reducing agent system with a heated tank
CN107152357A (en) * 2016-03-03 2017-09-12 劳士领汽车集团 Heat exchanger for the heat exchanger being at least partially disposed in working liquid tank and for such heat exchanger
DE102016203558A1 (en) * 2016-03-03 2017-09-07 Röchling Automotive SE & Co. KG Heat exchanger for at least partial arrangement in a service liquid tank and heat exchanger body for such a heat exchanger
US10690418B2 (en) 2016-03-03 2020-06-23 Röchling Automotive SE & Co. KG Heat exchanger for at least partial arrangement in a service liquid tank and heat-exchanger body for such a heat exchanger
CN107152357B (en) * 2016-03-03 2021-01-29 劳士领汽车集团 Heat exchanger for being at least partially arranged in a working fluid tank and heat exchange body for such a heat exchanger
US20170254594A1 (en) * 2016-03-03 2017-09-07 Röchling Automotive SE & Co. KG Heat exchanger for at least partial arrangement in a service liquid tank and heat-exchanger body for such a heat exchanger
DE102016203558B4 (en) 2016-03-03 2023-12-14 Röchling Automotive SE Heat exchanger for at least partial arrangement in an operating fluid tank and heat exchanger body for such a heat exchanger
CN112145261A (en) * 2020-08-05 2020-12-29 中船澄西船舶修造有限公司 Marine low-temperature self-cleaning urea cabin

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