WO2008077862A1 - System for using surplus energy in the exhaust gases of a large diesel engine of a ship - Google Patents

System for using surplus energy in the exhaust gases of a large diesel engine of a ship Download PDF

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Publication number
WO2008077862A1
WO2008077862A1 PCT/EP2007/064223 EP2007064223W WO2008077862A1 WO 2008077862 A1 WO2008077862 A1 WO 2008077862A1 EP 2007064223 W EP2007064223 W EP 2007064223W WO 2008077862 A1 WO2008077862 A1 WO 2008077862A1
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WO
WIPO (PCT)
Prior art keywords
generator
exhaust gas
diesel engine
large diesel
gas turbine
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Application number
PCT/EP2007/064223
Other languages
German (de)
French (fr)
Inventor
Kay Tigges
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to KR1020097007154A priority Critical patent/KR101172568B1/en
Priority to CN2007800474928A priority patent/CN101563272B/en
Publication of WO2008077862A1 publication Critical patent/WO2008077862A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B63H21/14—Use of propulsion power plant or units on vessels the vessels being motor-driven relating to internal-combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B63H21/16—Use of propulsion power plant or units on vessels the vessels being motor-driven relating to gas turbines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J3/00—Driving of auxiliaries
    • B63J3/02—Driving of auxiliaries from propulsion power plant

Definitions

  • the invention relates to a system for utilizing excess energy in the exhaust gases of a large diesel engine, in particular a two-stroke large diesel engine, which is installed on board a ship with electrical system, the exhaust gases are first supplied to exhaust gas turbochargers and then exploited in an exhaust turbine and the Abgastur - bine drives a generator.
  • the generator feeds electrical energy into the electrical system of a ship, the generator as a reactive power machine (phase shifter) is switchable.
  • phase shifter phase shifter
  • the generator has a start-up engine and that between the exhaust gas turbine and the generator, a transmission and a Matterholkupp-, in particular in the form of an SSS clutch, (self-synchronizing clutch) is arranged.
  • a transmission and a Göholkupp- in particular in the form of an SSS clutch, (self-synchronizing clutch) is arranged.
  • the overrunning clutch between the exhaust gas turbine and the generator which is advantageously used according to the invention, it is possible to connect the generator directly to the exhaust gas turbine by means of a simple intermediate unit (transmission and SSS clutch), whereby this arrangement makes it possible to simply run up the exhaust gas turbine.
  • the generator is synchronized by his launch motor without counter torque on the ship's network and electrically connected. Thereafter, the unregulated startup of the Gas turbine until reaching the generator synchronous speed. The exhaust gas turbine would continue to run up if it were not engaged by the overrunning clutch. By closing the clutch active power can be delivered to the generator.
  • the generator has a characteristic-guided voltage regulation and that for a reactive power generation from the generator characteristic to a phase shift characteristic line is changed. This results in a simple and inexpensive way to use the generator as a phase shifter and thereby achieve the necessary statics.
  • the large diesel engine has, in addition to the main exhaust gas line, a bypass exhaust gas line to the exhaust gas turbine, which can be regulated in particular with respect to its flow.
  • a bypass exhaust gas line to the exhaust gas turbine which can be regulated in particular with respect to its flow.
  • the exhaust gas turbine, the transmission with SSS clutch, which can be operated as a phase shifter generator and the launching motor are arranged on a common base frame.
  • a group of machines can be created, which is particularly cost-effective and also easily retrofitted can.
  • the free shaft end of the generator is optimally used in such a way that a compact exhaust gas turbine generator / phase shift unit is created.
  • the generator has a power converter, which provides the output side for the vehicle electrical system frequency, the vehicle electrical system voltage and the correct phase position of the generated electrical energy. This makes it easy to switch the generator / phase shifter on and off in the on-board network without having to use separate ones
  • the generator will be operated with a cosine phi of 0.9-1.
  • FIG. 1 is a schematic view of the aboard a
  • FIG. 2 shows a representation of the individual units, as they are arranged on a base frame.
  • FIG 1 is denoted by 1 of the large diesel engine, which usually has eight or more cylinders (eight cylinders are indicated). The number of cylinders can be up to fourteen.
  • the propeller shaft 15 is driven by the propeller 16, wherein on the propeller shaft 15 in modern ships, especially in container ships, a booster motor 2 is arranged, which is fed via a power converter 3 and a switch 13 from the ship's electrical system 12.
  • the booster motor 2 serves to provide additional energy for the drive of the propeller 16, if necessary, so that, for example, the timetable of the container ship can be maintained.
  • the large diesel engine also has a waste gas booster unit 4, 6, in which part 4 the combustion air is compressed and in part 6 the exhaust gases are expanded and cooled.
  • the exhaust line 7 Between the large diesel engine 1 and the exhaust part 6 of the turbocharger unit there is the exhaust line 7, from which a bypass 9 branches, which leads to the exhaust gas turbine 8, which is provided according to the invention.
  • the exhaust gas turbine 8 drives the inventively provided, switchable as a phase shifter generator 10, which is raised by a launch motor 11, if necessary.
  • a transmission Between the generator 10 and the exhaust gas turbine 8 is usually still a transmission, which is connected according to the invention with a SSS coupling.
  • the generator 10 feeds via a switching device 14 energy in the electrical system 12, which is supplied in a conventional manner not shown engine generator units with electric energy.
  • FIG 2 denotes the base frame according to the invention, on which the launching motor, the electric generator - can be switched as a reactive power machine -, the transmission with the SSS clutch and the exhaust gas turbine are located.
  • the generator voltage regulator is switched for the use of the generator as a reactive power generator for this purpose with respect to its characteristics. It is not shown because it is usually stored in a control cabinet. which is spatially removed from the machinery. In this cabinet, a cosine phi control module is arranged. This can be achieved very advantageous an optimal cosine phi for the electrical system.

Abstract

A system for using surplus energy in the exhaust gases of a large diesel engine (1), in particular a two-stroke large diesel engine, which is installed on board a ship with an electric power supply (12), wherein the exhaust gases are first of all supplied to exhaust gas turbochargers and are then made further use of in an exhaust gas turbine (8), and wherein the exhaust gas turbine (8) drives a generator (10) which feeds electric power into the power supply (12) of the ship, and wherein the generator (10) can be connected as a phase converter.

Description

Beschreibungdescription
System zur Ausnutzung von Überschussenergie in den Abgasen eines Schiffs-GroßdieselmotorsSystem for utilizing excess energy in the exhaust gases of a marine diesel engine
Die Erfindung betrifft ein System zur Ausnutzung von Überschussenergie in den Abgasen eines Großdieselmotors, insbesondere eines Zweitakt-Großdieselmotors, der an Bord eines Schiffes mit elektrischem Bordnetz installiert ist, wobei die Abgase zunächst Abgasturboladern zugeführt und dann in einer Abgasturbine weiter ausgenutzt werden und wobei die Abgastur- bine einen Generator antreibt.The invention relates to a system for utilizing excess energy in the exhaust gases of a large diesel engine, in particular a two-stroke large diesel engine, which is installed on board a ship with electrical system, the exhaust gases are first supplied to exhaust gas turbochargers and then exploited in an exhaust turbine and the Abgastur - bine drives a generator.
Die Abgasenergie von Großdieselmotoren an Bord von Schiffen wird häufig durch die Abgasturbolader und/oder nachgeschaltete Dampfturbinen, die einen Generator antreiben, nicht vollständig ausgenutzt. Dies ist insbesondere bei Zweitakt-Großdieseln der Fall, da die in der Schifffahrt verwendeten Typgrößen häufig nicht die für die Abgasausnutzung ideale Turbo- laderzahl aufweisen. So würde beispielsweise manchmal eine gebrochene (2,5 oder 3,5) Zahl von Turboladern zur besten Ausnutzung der Abgasenergie benötigt. Da eine gebrochene Zahl von Turboladern jedoch nicht darstellbar ist, wird ein nicht notwendiger Aufladungsgrad erreicht. Es liegt nahe, die sich bei Zweitakt-Großdieseln ergebende überschüssige Aufladung zum Antrieb eines Nutzturbinenrades zu verwenden. Dies ist bereits aus der Schrift „Produkt + Praxis" der Firma ABB Schalt- und Steuerungstechnik, Ausgabe 1/99, bekannt. Es handelt sich dabei um eine Nutzturbine, die elektrische Energie in das Netz einer Insel einspeist.The exhaust energy of large diesel engines aboard ships is often not fully exploited by the exhaust gas turbocharger and / or downstream steam turbines that drive a generator. This is the case, in particular, in the case of two-stroke large diesel engines, since the type sizes used in shipping often do not have the turbocharger number which is ideal for exhaust gas utilization. For example, a broken (2.5 or 3.5) number of turbochargers would sometimes be needed to make the best use of exhaust gas energy. However, since a broken number of turbochargers can not be displayed, an unnecessary charge level is achieved. It makes sense to use the resulting in two-stroke large diesel supercharging to drive a Nutzturbinenrades. This is already known from the publication "Produkt + Praxis" by ABB Schalt- und Steuerungstechnik, issue 1/99, which is a utility turbine that feeds electrical energy into the grid of an island.
Es ist Aufgabe der Erfindung, eine derartige bekannte Nutzturbine in das Abgassystem eines Zweitakt-Großdieselmotors oder auch eines anderen Großdieselmotors derart einzubinden, dass die erzeugte Elektroenergie in optimaler Form für ein Schiffsbordnetz zur Verfügung steht. Dabei soll insbesondere der Tatsache Rechnung getragen werden, dass an Bord eines Schiffes große induktive Verbraucher vorhanden sind, die für das Schiffsbordnetz einen relativ schlechten Cosinus phi ergeben .It is an object of the invention to incorporate such a known power turbine in the exhaust system of a two-stroke large diesel engine or other large diesel engine such, that the generated electrical energy is available in optimal form for a shipboard network. It should be taken into account in particular the fact that on board a ship large inductive consumers are present, which give the shipboard network a relatively poor cosine phi.
Die Aufgabe wird dadurch gelöst, dass der Generator Elektroenergie in das Bordnetz eines Schiffes einspeist, wobei der Generator als Blindleistungsmaschine (Phasenschieber) schaltbar ist. Bisher war es üblich, dass große Schiffe einen separaten Phasenschieber aufwiesen, häufig in Form einer Blindleistungsmaschine, die an das elektrische Bordnetz angeschlossen war. Erfindungsgemäß und sehr vorteilhaft übernimmt jetzt einer der sowieso an Bord eines Schiffes vorhandenenThe object is achieved in that the generator feeds electrical energy into the electrical system of a ship, the generator as a reactive power machine (phase shifter) is switchable. Until now, it has been common for large ships to have a separate phase shifter, often in the form of a reactive power machine connected to the electrical system. According to the invention and very advantageous now one of the existing on board a ship anyway
Generatoren in Verbindung mit einer Abgasturbine diese Aufgabe. Es wird also sehr vorteilhaft eine elektrische Maschine an Bord des Schiffes eingespart, so kommt es zu einer nicht unerheblichen Kostensenkung in Bezug auf das Bordnetz eines großen Schiffes.Generators in conjunction with an exhaust turbine this task. So it is very advantageous to save an electrical machine on board the ship, so there is a significant cost reduction in relation to the electrical system of a large ship.
In Ausgestaltung der Erfindung ist vorgesehen, dass der Generator einen Anwurfmotor aufweist und dass zwischen der Abgasturbine und dem Generator ein Getriebe und eine Überholkupp- lung, insbesondere in Form einer SSS-Kupplung, (Selbstsynchronisierende Schaltkupplung) angeordnet ist. Durch die erfindungsgemäß vorteilhaft verwendete Überholkupplung zwischen Abgasturbine und Generator ist es möglich, den Generator durch ein einfaches Zwischenaggregat (Getriebe und SSS-Kupp- lung) direkt mit der Abgasturbine zu verbinden, wobei durch diese Anordnung ein einfaches Hochlaufen der Abgasturbine möglich ist. Der Generator wird durch seinen Anwurfmotor ohne Gegendrehmoment auf das Schiffsnetz synchronisiert und elektrisch verbunden. Danach erfolgt der ungeregelte Hochlauf der Gasturbine bis zum Erreichen der Generatorsynchrondrehzahl. Die Abgasturbine würde weiter hochlaufen, wenn sie nicht von der Überholkupplung eingekuppelt würde. Mit Schließen der Kupplung kann Wirkleistung an den Generator abgegeben werden.In an embodiment of the invention, it is provided that the generator has a start-up engine and that between the exhaust gas turbine and the generator, a transmission and a Überholkupp-, in particular in the form of an SSS clutch, (self-synchronizing clutch) is arranged. By virtue of the overrunning clutch between the exhaust gas turbine and the generator which is advantageously used according to the invention, it is possible to connect the generator directly to the exhaust gas turbine by means of a simple intermediate unit (transmission and SSS clutch), whereby this arrangement makes it possible to simply run up the exhaust gas turbine. The generator is synchronized by his launch motor without counter torque on the ship's network and electrically connected. Thereafter, the unregulated startup of the Gas turbine until reaching the generator synchronous speed. The exhaust gas turbine would continue to run up if it were not engaged by the overrunning clutch. By closing the clutch active power can be delivered to the generator.
In weiterer Ausgestaltung der Erfindung ist vorteilhaft vorgesehen, dass der Generator eine kennliniengeführte Spannungsregelung aufweist und dass für eine Blindleistungserzeugung von der Generatorkennlinie auf eine Phasenschieberkenn- linie gewechselt wird. So ergibt sich eine einfache und kostengünstige Möglichkeit, den Generator als Phasenschieber einzusetzen und dabei die notwendige Statik zu erreichen.In a further embodiment of the invention, it is advantageously provided that the generator has a characteristic-guided voltage regulation and that for a reactive power generation from the generator characteristic to a phase shift characteristic line is changed. This results in a simple and inexpensive way to use the generator as a phase shifter and thereby achieve the necessary statics.
In weiterer Ausgestaltung der Erfindung ist vorteilhaft vor- gesehen, dass der Großdieselmotor außer der Hauptabgasleitung eine, insbesondere bezüglich ihrer Durchströmung regelbare, Bypass-Abgasleitung zur Abgasturbine aufweist. So ergibt sich sehr vorteilhaft die Möglichkeit, die Abgasturbine so zu betreiben, dass die Abgasturbolader, die ja für eine optimale Füllung der Zylinder des Großdiesels sorgen, von der Entnahme der Überschussenergie aus der Abgasleitung zu den Turboladerturbinen nicht beeinflusst werden. Die Nutzung der Überschussenergie kann also bei allen Betriebszuständen, d.h. auch bei Teillast, ohne Beeinflussung des Motorwirkungsgrades der Großdieselmaschine erfolgen. Es ergibt sich also eineIn a further embodiment of the invention, it is advantageously provided that the large diesel engine has, in addition to the main exhaust gas line, a bypass exhaust gas line to the exhaust gas turbine, which can be regulated in particular with respect to its flow. This results in a very advantageous possibility of operating the exhaust gas turbine in such a way that the exhaust gas turbochargers, which indeed ensure optimum filling of the cylinders of the large diesel engine, are not influenced by the removal of excess energy from the exhaust gas line to the turbocharger turbines. The use of the surplus energy can thus in all operating conditions, i. even at partial load, without affecting the engine efficiency of the large diesel engine. So it turns out one
Überschussenergienutzung, die den Wirkungsgrad der Antriebsanlage des Schiffes erheblich steigern kann.Excessive energy use, which can significantly increase the efficiency of the propulsion system of the ship.
In weiterer Ausgestaltung der Erfindung ist vorgesehen, dass die Abgasturbine, das Getriebe mit SSS-Kupplung, der als Phasenschieber betreibbare Generator und der Anwurfmotor auf einem gemeinsamen Grundrahmen angeordnet sind. Durch diese Anordnung kann eine Maschinengruppe geschaffen werden, die besonders kostengünstig ist und auch leicht nachgerüstet werden kann. Mit dieser Maschinengruppe wird das freie Wellenende des Generators optimal derart genutzt, dass eine kompakte Abgasturbinengenerator/Phasenschiebereinheit entsteht .In a further embodiment of the invention, it is provided that the exhaust gas turbine, the transmission with SSS clutch, which can be operated as a phase shifter generator and the launching motor are arranged on a common base frame. By this arrangement, a group of machines can be created, which is particularly cost-effective and also easily retrofitted can. With this machine group, the free shaft end of the generator is optimally used in such a way that a compact exhaust gas turbine generator / phase shift unit is created.
In weiterer Ausgestaltung der Erfindung ist vorgesehen, dass der Generator einen Stromrichter aufweist, der ausgangsseitig für die Bordnetzfrequenz, die Bordnetzspannung und die richtige Phasenlage der erzeugten Elektroenergie sorgt. So ist eine problemlose Ein- und Ausschaltung des Generator/Pha- senschiebers in das Bordnetz möglich, ohne dass separateIn a further embodiment of the invention, it is provided that the generator has a power converter, which provides the output side for the vehicle electrical system frequency, the vehicle electrical system voltage and the correct phase position of the generated electrical energy. This makes it easy to switch the generator / phase shifter on and off in the on-board network without having to use separate ones
Schaltvorgänge erfolgen müssen. So ist auch ein asynchroner Betrieb zum Bordnetz möglich!Switching must be done. So an asynchronous operation to the electrical system is possible!
Es ist vorgesehen, dass der Generator mit einem Cosinus phi von 0,9 - 1 betrieben wird.It is envisaged that the generator will be operated with a cosine phi of 0.9-1.
Die Erfindung wird anhand von Zeichnungen näher erläutert, aus denen, ebenso wie aus den Unteransprüchen, auch weitere erfinderische Einzelheiten entnehmbar sind.The invention will be explained in more detail with reference to drawings, from which, as well as from the dependent claims, further inventive details are removed.
Im Einzelnen zeigen:In detail show:
FIG 1 eine schematische Ansicht des an Bord eines1 is a schematic view of the aboard a
Schiffes mit Großdieselmotor befindlichen erfindungsgemäßen Systems undShip with large diesel engine located system according to the invention and
FIG 2 eine Darstellung der einzelnen Aggregate, wie sie auf einem Grundrahmen angeordnet sind.2 shows a representation of the individual units, as they are arranged on a base frame.
In FIG 1 ist mit 1 der Großdieselmotor bezeichnet, der in der Regel acht oder mehr Zylinder aufweist (acht Zylinder sind angedeutet) . Die Zahl der Zylinder kann bis zu vierzehn betragen . Von dem Großdieselmotor 1 wird die Propellerwelle 15 mit dem Propeller 16 angetrieben, wobei auf der Propellerwelle 15 bei modernen Schiffen, insbesondere bei Containerschiffen, ein Boostermotor 2 angeordnet ist, der über einen Stromrichter 3 und einen Schalter 13 aus dem Schiffsbordnetz 12 gespeist wird. Der Boostermotor 2 dient dazu, im Bedarfsfall zusätzliche Energie für den Antrieb des Propellers 16 zur Verfügung zu stellen, damit z.B. der Fahrplan des Containerschiffs eingehalten werden kann. Der Großdieselmotor weist noch eine Ab- gasturboeinheit 4, 6 auf, wobei in dem Teil 4 die Verbrennungsluft verdichtet und im Teil 6 die Abgase entspannt und abgekühlt werden. Zwischen dem Großdieselmotor 1 und dem Abgasteil 6 der Turboladereinheit befindet sich die Abgaslei- tung 7, von der ein Bypass 9 abzweigt, der zu der Abgasturbi- ne 8, die erfindungsgemäß vorgesehen ist, führt. Die Abgas- turbine 8 treibt den erfindungsgemäß vorgesehenen, als Phasenschieber umschaltbaren Generator 10 an, der durch einen Anwurfmotor 11 im Bedarfsfall hochgefahren wird. Zwischen dem Generator 10 und der Abgasturbine 8 befindet sich in der Re- gel noch ein Getriebe, das erfindungsgemäß mit einer SSS- Kupplung verbunden ist. Der Generator 10 speist über eine Schalteinrichtung 14 Energie in das Bordnetz 12 ein, das in üblicher Weise über nicht dargestellte Motorgeneratoreinheiten mit Elektroenergie versorgt wird.In FIG 1 is denoted by 1 of the large diesel engine, which usually has eight or more cylinders (eight cylinders are indicated). The number of cylinders can be up to fourteen. From the large diesel engine 1, the propeller shaft 15 is driven by the propeller 16, wherein on the propeller shaft 15 in modern ships, especially in container ships, a booster motor 2 is arranged, which is fed via a power converter 3 and a switch 13 from the ship's electrical system 12. The booster motor 2 serves to provide additional energy for the drive of the propeller 16, if necessary, so that, for example, the timetable of the container ship can be maintained. The large diesel engine also has a waste gas booster unit 4, 6, in which part 4 the combustion air is compressed and in part 6 the exhaust gases are expanded and cooled. Between the large diesel engine 1 and the exhaust part 6 of the turbocharger unit there is the exhaust line 7, from which a bypass 9 branches, which leads to the exhaust gas turbine 8, which is provided according to the invention. The exhaust gas turbine 8 drives the inventively provided, switchable as a phase shifter generator 10, which is raised by a launch motor 11, if necessary. Between the generator 10 and the exhaust gas turbine 8 is usually still a transmission, which is connected according to the invention with a SSS coupling. The generator 10 feeds via a switching device 14 energy in the electrical system 12, which is supplied in a conventional manner not shown engine generator units with electric energy.
In FIG 2 bezeichnet 20 den erfindungsgemäß verwendeten Grundrahmen, auf dem sich der Anwurfmotor, der elektrische Generator - umschaltbar als Blindleistungsmaschine -, das Getriebe mit der SSS-Kupplung und die Abgasturbine befinden.In FIG 2, 20 denotes the base frame according to the invention, on which the launching motor, the electric generator - can be switched as a reactive power machine -, the transmission with the SSS clutch and the exhaust gas turbine are located.
Der Generatorspannungsregler wird für die Verwendung des Generators als Blindleistungsgenerator zu diesem Zweck bezüglich seiner Kennlinien umgeschaltet. Er ist nicht dargestellt, da er in der Regel in einem Schaltschrank unterge- bracht ist, der räumlich von der Maschinenanlage entfernt ist. In diesem Schaltschrank ist auch ein Cosinus phi Regelmodul angeordnet. Damit kann sehr vorteilhaft ein optimaler Cosinus phi für das Bordnetz erreicht werden.The generator voltage regulator is switched for the use of the generator as a reactive power generator for this purpose with respect to its characteristics. It is not shown because it is usually stored in a control cabinet. which is spatially removed from the machinery. In this cabinet, a cosine phi control module is arranged. This can be achieved very advantageous an optimal cosine phi for the electrical system.
Durch die erfindungsgemäße Generator/Phasenschiebermaschineneinrichtung mit der erfindungsgemäß vorgesehenen Umschalteinrichtung ergibt sich eine äußerst einfache und kostengünstige Möglichkeit, die Überschussenergie eines Großdiesels zu nut- zen und dabei bis zu 5 bis 10 % der verbrauchten Energie einzusparen. Trotz dieses erheblichen Vorteils ist die Maschinenanlage, die dafür notwendig ist, von äußerster Einfachheit und sehr kostengünstig. Die erreichten Vorteile sind also erheblich, ohne dass ein erheblicher Aufwand, z.B. durch die Verwendung einer Dampfturbinenanlage mit Abgaswärmetauscher, betrieben werden muss. Das erfindungsgemäße System ist für Zweitakt-Großdieselmaschinen besonders vorteilhaft, u.U. kann es jedoch auch für Viertaktgroßdiesel von Vorteil sein. As a result of the generator / phase shifter device according to the invention with the switching device provided according to the invention, an extremely simple and cost-effective way of utilizing the excess energy of a large diesel engine and saving up to 5 to 10% of the consumed energy results. Despite this significant advantage, the machinery required for this is of utmost simplicity and very cost effective. The achieved advantages are thus considerable, without a considerable effort, e.g. through the use of a steam turbine plant with exhaust gas heat exchanger, must be operated. The system according to the invention is particularly advantageous for two-stroke large diesel engines u.U. However, it may also be beneficial for four-stroke diesel.

Claims

Patentansprüche claims
1. System zur Ausnutzung von Überschussenergie in den Abgasen eines Großdieselmotors (1), insbesondere eines Zweitakt-Groß- dieselmotors, der an Bord eines Schiffes mit elektrischem1. A system for utilizing excess energy in the exhaust gases of a large diesel engine (1), in particular a two-stroke large diesel engine, on board a ship with electric
Bordnetz (12) installiert ist, wobei die Abgase zunächst Abgasturboladern zugeführt und dann in einer Abgasturbine (8) weiter ausgenutzt werden und wobei die Abgasturbine (8) einen Generator (10) antreibt, der Elektroenergie in das Bordnetz (12) des Schiffes einspeist und wobei der Generator (10) als Blindleistungsmaschine schaltbar ist.Vehicle electrical system (12) is installed, wherein the exhaust gases are first supplied to exhaust gas turbochargers and then exploited in an exhaust gas turbine (8) and wherein the exhaust gas turbine (8) drives a generator (10) which feeds electrical energy into the electrical system (12) of the ship and wherein the generator (10) is switchable as a reactive power machine.
2. System nach Anspruch 1, d a d u r c h g e k e n z e i c h n e t, dass der Generator (10, 22) einen Anwurfmotor (11, 21) aufweist und dass zwischen der Abgasturbine (8, 24) und dem Generator (10, 22) ein Getriebe und eine Überholkupplung (23), insbesondere in Form einer SSS-Kupplung, angeordnet sind.2. System according to claim 1, dadurchgekenzeichnet in that the generator (10, 22) has a launching motor (11, 21) and that between the exhaust gas turbine (8, 24) and the generator (10, 22) has a gear and an overrunning clutch (23 ), in particular in the form of an SSS clutch, are arranged.
3. System nach Anspruch 1 oder 2, d a d u r c h g e k e n n z e i c h n e t, dass der Generator (10, 22) eine kennliniengeführte Spannungsregelung aufweist und dass für eine Blindleistungserzeugung von der Generatorkennlinie auf eine Phasenschieberkennlinie gewechselt wird.3. System according to claim 1 or 2, characterized in that the generator (10, 22) has a characteristic-guided voltage regulation and that is switched for a reactive power generation from the generator characteristic to a phase shifter characteristic.
4. System nach Anspruch 1, 2 oder 3, d a d u r c h g e k e n n z e i c h n e t, dass der Großdieselmotor (1) außer seiner Hauptabgasleitung (7) eine, ins- besondere in Bezug auf seine Durchströmung regelbare, Bypass- Abgasleitung (9) aufweist, wobei die Bypass-Abgasleitung (9) zur Abgasturbine (8) führt. 4. System according to claim 1, 2 or 3, characterized in that the large diesel engine (1) except its main exhaust gas line (7), in particular with respect to its flow adjustable, bypass exhaust pipe (9), wherein the bypass exhaust pipe (9) leads to the exhaust gas turbine (8).
5. System nach Anspruch 1, 2, 3 oder 4, d a d u r c h g e k e n n z e i c h n e t, dass die Abgas- turbine (24), das Getriebe (23) mit der SSS-Kupplung, der als Phasenschieber betreibbare Generator (22) und der Anwurfmotor (21) auf einem gemeinsamen Grundrahmen (20) angeordnet sind.5. System according to claim 1, 2, 3 or 4, characterized in that the exhaust turbine (24), the transmission (23) with the SSS clutch, which can be operated as a phase shifter generator (22) and the launching motor (21) a common base frame (20) are arranged.
6. System nach Anspruch 1, 2, 3, 4 oder 5, d a d u r c h g e k e n n z e i c h n e t, dass der Generator (10, 22) einen Stromrichter aufweist, der ausgangsseitig für die Bordnetzfrequenz, die Bordnetzspannung und die Phasenlage der erzeugten Elektroenergie sorgt.6. System according to claim 1, 2, 3, 4 or 5, d a d u r c h e c e n e c e s in that the generator (10, 22) has a power converter, the output side provides for the electrical system frequency, the vehicle electrical system voltage and the phase position of the generated electrical energy.
7. System nach Anspruch 6, d a d u r c h g e k e n n z e i c h n e t, dass der Phasen- Schieber (10) mit einem Cosinus phi von 0,9 - 1 betrieben wird. 7. System according to claim 6, characterized in that the phase shifter (10) is operated with a cosine phi of 0.9-1.
PCT/EP2007/064223 2006-12-22 2007-12-19 System for using surplus energy in the exhaust gases of a large diesel engine of a ship WO2008077862A1 (en)

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KR1020097007154A KR101172568B1 (en) 2006-12-22 2007-12-19 System for using surplus energy in the exhaust gases of a large diesel engine of a ship
CN2007800474928A CN101563272B (en) 2006-12-22 2007-12-19 System for using surplus energy in the exhaust gases of a large diesel engine of a ship

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DE102006061374.0 2006-12-22
DE102006061374.0A DE102006061374B4 (en) 2006-12-22 2006-12-22 System for utilizing excess energy in the exhaust gases of a two-stroke large diesel engine

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EP2634080A4 (en) * 2010-09-01 2015-07-22 Halla Engineering & Ind Dev Co Ltd Ship for processing marine waste into resource for collecting marine waste at sea, preprocessing, and supplying power to island regions
CN105264192A (en) * 2013-06-03 2016-01-20 西门子公司 Device and a drive system, in particular for ships, which comprises a device of this type

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CN101563272A (en) 2009-10-21
CN101563272B (en) 2012-04-18
DE102006061374A1 (en) 2008-06-26
DE102006061374B4 (en) 2016-12-08
KR101172568B1 (en) 2012-08-08
KR20090051270A (en) 2009-05-21

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